1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl License. See LICENSE.TXT for details.
7 dnl===-----------------------------------------------------------------------===
8 dnl This is the LLVM configuration script. It is processed by the autoconf
9 dnl program to produce a script named configure. This script contains the
10 dnl configuration checks that LLVM needs in order to support multiple platforms.
11 dnl This file is composed of 10 sections per the recommended organization of
12 dnl autoconf input defined in the autoconf documentation. As this file evolves,
13 dnl please keep the various types of checks within their sections. The sections
16 dnl SECTION 1: Initialization & Setup
17 dnl SECTION 2: Architecture, target, and host checks
18 dnl SECTION 3: Command line arguments for the configure script.
19 dnl SECTION 4: Check for programs we need and that they are the right version
20 dnl SECTION 5: Check for libraries
21 dnl SECTION 6: Check for header files
22 dnl SECTION 7: Check for types and structures
23 dnl SECTION 8: Check for specific functions needed
24 dnl SECTION 9: Additional checks, variables, etc.
25 dnl SECTION 10: Specify the output files and generate it
27 dnl===-----------------------------------------------------------------------===
29 dnl=== SECTION 1: Initialization & Setup
31 dnl===-----------------------------------------------------------------------===
32 dnl Initialize autoconf and define the package name, version number and
33 dnl address for reporting bugs.
35 AC_INIT([LLVM],[3.7.0svn],[http://llvm.org/bugs/])
40 LLVM_VERSION_SUFFIX=svn
42 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
43 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])
44 AC_DEFINE_UNQUOTED([LLVM_VERSION_PATCH], $LLVM_VERSION_PATCH, [Patch version of the LLVM API])
45 AC_DEFINE_UNQUOTED([LLVM_VERSION_STRING], "$PACKAGE_VERSION", [LLVM version string])
47 AC_SUBST([LLVM_VERSION_MAJOR])
48 AC_SUBST([LLVM_VERSION_MINOR])
49 AC_SUBST([LLVM_VERSION_PATCH])
50 AC_SUBST([LLVM_VERSION_SUFFIX])
52 dnl Provide a copyright substitution and ensure the copyright notice is included
53 dnl in the output of --version option of the generated configure script.
54 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign."])
55 AC_COPYRIGHT([Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign.])
57 dnl Indicate that we require autoconf 2.60 or later.
60 dnl Verify that the source directory is valid. This makes sure that we are
61 dnl configuring LLVM and not some other package (it validates --srcdir argument)
62 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
64 dnl Place all of the extra autoconf files into the config subdirectory. Tell
65 dnl various tools where the m4 autoconf macros are.
66 AC_CONFIG_AUX_DIR([autoconf])
68 dnl Quit if the source directory has already been configured.
69 dnl NOTE: This relies upon undocumented autoconf behavior.
70 if test ${srcdir} != "." ; then
71 if test -f ${srcdir}/include/llvm/Config/config.h ; then
72 AC_MSG_ERROR([Already configured in ${srcdir}])
76 dnl Quit if it is an in-source build
77 if test ${srcdir} == "." ; then
78 AC_MSG_WARN([**************************************************************************************])
80 AC_MSG_WARN([* WARNING *])
82 AC_MSG_WARN([* In-source builds are deprecated. *])
84 AC_MSG_WARN([* Please configure from a separate build directory! *])
86 AC_MSG_WARN([**************************************************************************************])
89 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
90 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
94 dnl We need to check for the compiler up here to avoid anything else
95 dnl starting with a different one.
97 AC_PROG_CXX(clang++ g++)
100 dnl If CXX is Clang, check that it can find and parse C++ standard library
102 if test "$CXX" = "clang++" ; then
103 AC_MSG_CHECKING([whether clang works])
105 dnl Note that space between 'include' and '(' is required. There's a broken
106 dnl regex in aclocal that otherwise will think that we call m4's include
108 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
109 #if __has_include (<cxxabi.h>)
112 #if __has_include (<unwind.h>)
121 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler LLVM_SRC_DIR/configure ...])
126 dnl Set up variables that track whether the host compiler is GCC or Clang where
127 dnl we can effectively sanity check them. We don't try to sanity check all the
128 dnl other possible compilers.
129 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
131 llvm_cv_cxx_compiler=unknown
132 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
136 llvm_cv_cxx_compiler=clang,
137 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
141 llvm_cv_cxx_compiler=gcc, [])])
143 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
145 dnl Configure all of the projects present in our source tree. While we could
146 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
147 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
148 dnl Instead we match on the known projects.
151 dnl One tricky part of doing this is that some projects depend upon other
152 dnl projects. For example, several projects rely upon the LLVM test suite.
153 dnl We want to configure those projects first so that their object trees are
154 dnl created before running the configure scripts of projects that depend upon
158 dnl Several projects use the LLVM test suite, so configure it next.
159 if test -d ${srcdir}/projects/test-suite ; then
160 AC_CONFIG_SUBDIRS([projects/test-suite])
163 dnl llvm-test is the old name of the test-suite, kept here for backwards
165 if test -d ${srcdir}/projects/llvm-test ; then
166 AC_CONFIG_SUBDIRS([projects/llvm-test])
169 dnl Some projects use poolalloc; configure that next
170 if test -d ${srcdir}/projects/poolalloc ; then
171 AC_CONFIG_SUBDIRS([projects/poolalloc])
174 if test -d ${srcdir}/projects/llvm-poolalloc ; then
175 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
178 dnl Check for all other projects
179 for i in `ls ${srcdir}/projects`
181 if test -d ${srcdir}/projects/${i} ; then
183 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
190 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
196 dnl Disable the build of polly, even if it is checked out into tools/polly.
198 AS_HELP_STRING([--enable-polly],
199 [Use polly if available (default is YES)]),,
202 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
203 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
204 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
205 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
209 dnl Check if polly is checked out into tools/polly and configure it if
211 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
212 AC_SUBST(LLVM_HAS_POLLY,1)
213 AC_CONFIG_SUBDIRS([tools/polly])
216 dnl===-----------------------------------------------------------------------===
218 dnl=== SECTION 2: Architecture, target, and host checks
220 dnl===-----------------------------------------------------------------------===
222 dnl Check the target for which we're compiling and the host that will do the
223 dnl compilations. This will tell us which LLVM compiler will be used for
224 dnl compiling SSA into object code. This needs to be done early because
225 dnl following tests depend on it.
228 dnl Determine the platform type and cache its value. This helps us configure
229 dnl the System library to the correct build platform.
230 AC_CACHE_CHECK([type of operating system we're going to host on],
234 llvm_cv_link_all_option="-Wl,--whole-archive"
235 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
236 llvm_cv_os_type="AIX"
237 llvm_cv_platform_type="Unix" ;;
239 llvm_cv_link_all_option="-Wl,--whole-archive"
240 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
241 llvm_cv_os_type="IRIX"
242 llvm_cv_platform_type="Unix" ;;
244 llvm_cv_link_all_option="-Wl,--whole-archive"
245 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
246 llvm_cv_os_type="Cygwin"
247 llvm_cv_platform_type="Unix" ;;
249 llvm_cv_link_all_option="-Wl,-all_load"
250 llvm_cv_no_link_all_option="-Wl,-noall_load"
251 llvm_cv_os_type="Darwin"
252 llvm_cv_platform_type="Unix" ;;
254 llvm_cv_link_all_option="-Wl,-all_load"
255 llvm_cv_no_link_all_option="-Wl,-noall_load"
256 llvm_cv_os_type="Minix"
257 llvm_cv_platform_type="Unix" ;;
259 llvm_cv_link_all_option="-Wl,--whole-archive"
260 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
261 llvm_cv_os_type="FreeBSD"
262 llvm_cv_platform_type="Unix" ;;
264 llvm_cv_link_all_option="-Wl,--whole-archive"
265 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
266 llvm_cv_os_type="GNU/kFreeBSD"
267 llvm_cv_platform_type="Unix" ;;
269 llvm_cv_link_all_option="-Wl,--whole-archive"
270 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
271 llvm_cv_os_type="OpenBSD"
272 llvm_cv_platform_type="Unix" ;;
274 llvm_cv_link_all_option="-Wl,--whole-archive"
275 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
276 llvm_cv_os_type="NetBSD"
277 llvm_cv_platform_type="Unix" ;;
279 llvm_cv_link_all_option="-Wl,--whole-archive"
280 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
281 llvm_cv_os_type="DragonFly"
282 llvm_cv_platform_type="Unix" ;;
284 llvm_cv_link_all_option="-Wl,--whole-archive"
285 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
286 llvm_cv_os_type="Bitrig"
287 llvm_cv_platform_type="Unix" ;;
289 llvm_cv_link_all_option="-Wl,--whole-archive"
290 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
291 llvm_cv_os_type="HP-UX"
292 llvm_cv_platform_type="Unix" ;;
294 llvm_cv_link_all_option="-Wl,--whole-archive"
295 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
296 llvm_cv_os_type="Interix"
297 llvm_cv_platform_type="Unix" ;;
299 llvm_cv_link_all_option="-Wl,--whole-archive"
300 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
301 llvm_cv_os_type="Linux"
302 llvm_cv_platform_type="Unix" ;;
304 llvm_cv_link_all_option="-Wl,--whole-archive"
305 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
306 llvm_cv_os_type="GNU"
307 llvm_cv_platform_type="Unix" ;;
309 llvm_cv_link_all_option="-Wl,-z,allextract"
310 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
311 llvm_cv_os_type="SunOS"
312 llvm_cv_platform_type="Unix" ;;
314 llvm_cv_link_all_option="-Wl,--whole-archive"
315 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
316 llvm_cv_os_type="Win32"
317 llvm_cv_platform_type="Win32" ;;
319 llvm_cv_link_all_option="-Wl,--whole-archive"
320 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
321 llvm_cv_os_type="MingW"
322 llvm_cv_platform_type="Win32" ;;
324 llvm_cv_link_all_option="-Wl,--whole-archive"
325 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
326 llvm_cv_os_type="Haiku"
327 llvm_cv_platform_type="Unix" ;;
329 llvm_cv_link_all_option="-Wl,--whole-archive"
330 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
331 llvm_cv_os_type="Freestanding"
332 llvm_cv_platform_type="Unix" ;;
334 llvm_cv_link_all_option="-Wl,--whole-archive"
335 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
336 llvm_cv_os_type="Freestanding"
337 llvm_cv_platform_type="Unix" ;;
339 llvm_cv_link_all_option=""
340 llvm_cv_no_link_all_option=""
341 llvm_cv_os_type="Unknown"
342 llvm_cv_platform_type="Unknown" ;;
345 AC_CACHE_CHECK([type of operating system we're going to target],
346 [llvm_cv_target_os_type],
349 llvm_cv_target_os_type="AIX" ;;
351 llvm_cv_target_os_type="IRIX" ;;
353 llvm_cv_target_os_type="Cygwin" ;;
355 llvm_cv_target_os_type="Darwin" ;;
357 llvm_cv_target_os_type="Minix" ;;
359 llvm_cv_target_os_type="FreeBSD" ;;
361 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
363 llvm_cv_target_os_type="OpenBSD" ;;
365 llvm_cv_target_os_type="NetBSD" ;;
367 llvm_cv_target_os_type="DragonFly" ;;
369 llvm_cv_target_os_type="Bitrig" ;;
371 llvm_cv_target_os_type="HP-UX" ;;
373 llvm_cv_target_os_type="Interix" ;;
375 llvm_cv_target_os_type="Linux" ;;
377 llvm_cv_target_os_type="GNU" ;;
379 llvm_cv_target_os_type="SunOS" ;;
381 llvm_cv_target_os_type="Win32" ;;
383 llvm_cv_target_os_type="MingW" ;;
385 llvm_cv_target_os_type="Haiku" ;;
387 llvm_cv_target_os_type="RTEMS" ;;
389 llvm_cv_target_os_type="NativeClient" ;;
391 llvm_cv_target_os_type="Freestanding" ;;
393 llvm_cv_target_os_type="PS4" ;;
395 llvm_cv_target_os_type="Unknown" ;;
398 dnl Make sure we aren't attempting to configure for an unknown system
399 if test "$llvm_cv_os_type" = "Unknown" ; then
400 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
403 dnl Set the "OS" Makefile variable based on the platform type so the
404 dnl makefile can configure itself to specific build hosts
405 AC_SUBST(OS,$llvm_cv_os_type)
406 AC_SUBST(HOST_OS,$llvm_cv_os_type)
407 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
409 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
410 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
411 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
413 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
414 dnl This is used by lib/Support to determine the basic kind of implementation
416 case $llvm_cv_platform_type in
418 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
419 AC_SUBST(LLVM_ON_UNIX,[1])
420 AC_SUBST(LLVM_ON_WIN32,[0])
423 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
424 AC_SUBST(LLVM_ON_UNIX,[0])
425 AC_SUBST(LLVM_ON_WIN32,[1])
429 dnl Determine what our target architecture is and configure accordingly.
430 dnl This will allow Makefiles to make a distinction between the hardware and
432 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
434 i?86-*) llvm_cv_target_arch="x86" ;;
435 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
436 sparc*-*) llvm_cv_target_arch="Sparc" ;;
437 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
438 arm64*-*) llvm_cv_target_arch="AArch64" ;;
439 arm*-*) llvm_cv_target_arch="ARM" ;;
440 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
441 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
442 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
443 xcore-*) llvm_cv_target_arch="XCore" ;;
444 msp430-*) llvm_cv_target_arch="MSP430" ;;
445 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
446 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
447 s390x-*) llvm_cv_target_arch="SystemZ" ;;
448 wasm*-*) llvm_cv_target_arch="WebAssembly" ;;
449 *) llvm_cv_target_arch="Unknown" ;;
452 if test "$llvm_cv_target_arch" = "Unknown" ; then
453 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
456 dnl Determine the LLVM native architecture for the target
457 case "$llvm_cv_target_arch" in
458 x86) LLVM_NATIVE_ARCH="X86" ;;
459 x86_64) LLVM_NATIVE_ARCH="X86" ;;
460 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
463 dnl Define a substitution, ARCH, for the target architecture
464 AC_SUBST(ARCH,$llvm_cv_target_arch)
465 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
467 dnl Determine what our host architecture.
468 dnl This will allow MCJIT regress tests runs only for supported
471 i?86-*) host_arch="x86" ;;
472 amd64-* | x86_64-*) host_arch="x86_64" ;;
473 sparc*-*) host_arch="Sparc" ;;
474 powerpc*-*) host_arch="PowerPC" ;;
475 arm64*-*) host_arch="AArch64" ;;
476 arm*-*) host_arch="ARM" ;;
477 aarch64*-*) host_arch="AArch64" ;;
478 mips-* | mips64-*) host_arch="Mips" ;;
479 mipsel-* | mips64el-*) host_arch="Mips" ;;
480 xcore-*) host_arch="XCore" ;;
481 msp430-*) host_arch="MSP430" ;;
482 hexagon-*) host_arch="Hexagon" ;;
483 s390x-*) host_arch="SystemZ" ;;
484 wasm*-*) host_arch="WebAssembly" ;;
485 *) host_arch="Unknown" ;;
488 if test "$host_arch" = "Unknown" ; then
489 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
492 AC_SUBST(HOST_ARCH,$host_arch)
494 dnl Check for build platform executable suffix if we're cross-compiling
495 if test "$cross_compiling" = yes; then
496 AC_SUBST(LLVM_CROSS_COMPILING, [1])
498 ac_build_prefix=${build_alias}-
499 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
500 if test -z "$BUILD_CXX"; then
501 AC_CHECK_PROG(BUILD_CXX, g++, g++)
502 if test -z "$BUILD_CXX"; then
503 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
507 AC_SUBST(LLVM_CROSS_COMPILING, [0])
510 dnl Check to see if there's a .svn or .git directory indicating that this
511 dnl build is being done from a checkout. This sets up several defaults for
512 dnl the command line switches. When we build with a checkout directory,
513 dnl we get a debug with assertions turned on. Without, we assume a source
514 dnl release and we get an optimized build without assertions.
515 dnl See --enable-optimized and --enable-assertions below
516 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
519 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
525 dnl===-----------------------------------------------------------------------===
527 dnl=== SECTION 3: Command line arguments for the configure script.
529 dnl===-----------------------------------------------------------------------===
531 dnl --enable-libcpp : check whether or not to use libc++ on the command line
532 AC_ARG_ENABLE(libcpp,
533 AS_HELP_STRING([--enable-libcpp],
534 [Use libc++ if available (default is NO)]),,
537 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
538 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
539 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
540 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
543 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
544 dnl be bypassed by passing a flag if necessary on a platform. We have to do
545 dnl these checks here so that we have the configuration of the standard C++
546 dnl library finished.
547 AC_ARG_ENABLE(compiler-version-checks,
548 AS_HELP_STRING([--enable-compiler-version-checks],
549 [Check the version of the host compiler (default is YES)]),,
556 case "$llvm_cv_cxx_compiler" in
558 AC_MSG_CHECKING([whether Clang is new enough])
559 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
560 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
561 #error This version of Clang is too old to build LLVM
564 [AC_MSG_RESULT([yes])],
567 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
568 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
569 bypass these sanity checks.])])
571 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
572 dnl are sometimes deeply confusing though. Here we test for an obvious
573 dnl incomplete feature in 4.6's standard library that was completed in
574 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
575 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
576 dnl that happening in the Makefile.
577 if test "$ENABLE_LIBCPP" -eq 0 ; then
578 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
579 llvm_cv_old_cxxflags="$CXXFLAGS"
580 CXXFLAGS="$CXXFLAGS -std=c++0x"
581 AC_LINK_IFELSE([AC_LANG_SOURCE([[
583 std::atomic<float> x(0.0f);
584 int main() { return (float)x; }
586 [AC_MSG_RESULT([yes])],
589 We detected a missing feature in the standard C++ library that was known to be
590 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
591 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
592 than 4.7. You will need to update your system and ensure Clang uses the newer
595 If this error is incorrect or you need to force things to work, you may pass
596 '--disable-compiler-version-checks' to configure to bypass this test.])])
597 CXXFLAGS="$llvm_cv_old_cxxflags"
601 AC_MSG_CHECKING([whether GCC is new enough])
602 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
603 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
604 #error This version of GCC is too old to build LLVM
607 [AC_MSG_RESULT([yes])],
610 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
611 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
612 bypass these sanity checks.])])
620 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
624 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
626 AS_HELP_STRING([--enable-cxx1y],
627 [Use c++1y if available (default is NO)]),,
630 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
631 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
632 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
633 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
636 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
638 AC_ARG_ENABLE(split-dwarf,
639 AS_HELP_STRING([--enable-split-dwarf],
640 [Use split-dwarf if available (default is NO)]),,
643 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
644 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
645 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
646 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
649 dnl --enable-clang-arcmt: check whether to enable clang arcmt
651 AC_ARG_ENABLE(clang-arcmt,
652 AS_HELP_STRING([--enable-clang-arcmt],
653 [Enable building of clang ARCMT (default is YES)]),
654 clang_arcmt="$enableval",
657 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
658 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
659 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
660 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
663 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
664 clang_plugin_support="yes"
665 AC_ARG_ENABLE(clang-plugin-support,
666 AS_HELP_STRING([--enable-clang-plugin-support],
667 [Enable plugin support in clang (default is YES)]),
668 clang_plugin_support="$enableval",
671 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
672 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
673 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
674 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
677 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
678 clang_static_analyzer="yes"
679 AC_ARG_ENABLE(clang-static-analyzer,
680 AS_HELP_STRING([--enable-clang-static-analyzer],
681 [Enable building of clang Static Analyzer (default is YES)]),
682 clang_static_analyzer="$enableval",
685 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
687 if test ${clang_arcmt} != "no" ; then
688 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
690 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
692 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
693 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
696 dnl --enable-optimized : check whether they want to do an optimized build:
697 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
698 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
699 if test ${enableval} = "no" ; then
700 AC_SUBST(ENABLE_OPTIMIZED,[[]])
702 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
705 dnl --enable-profiling : check whether they want to do a profile build:
706 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
707 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
708 if test ${enableval} = "no" ; then
709 AC_SUBST(ENABLE_PROFILING,[[]])
711 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
714 dnl --enable-assertions : check whether they want to turn on assertions or not:
715 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
716 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
717 if test ${enableval} = "yes" ; then
718 AC_SUBST(DISABLE_ASSERTIONS,[[]])
719 assertions_enabled="yes"
721 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
722 assertions_enabled="no"
725 dnl --enable-werror : check whether we want Werror on by default
726 AC_ARG_ENABLE(werror,AS_HELP_STRING(
727 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
729 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
730 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
731 default) AC_SUBST(ENABLE_WERROR,[0]);;
732 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
735 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
736 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
737 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
738 if test ${enableval} = "yes" ; then
739 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
740 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
742 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
743 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
746 dnl --enable-abi-breaking-checks : decide whether we should compile in asserts and
747 dnl checks that make the build ABI incompatible with an llvm built without these
749 AC_ARG_ENABLE(abi-breaking-checks,AS_HELP_STRING(
750 --enable-abi-breaking-checks,[Compile with abi-breaking asserts support (default is with-asserts)]),, enableval="with-asserts")
752 with-asserts) if test ${assertions_enabled} = "yes" ; then
753 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
754 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
756 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
759 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
760 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
763 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
765 *) AC_MSG_ERROR([Invalid setting for --enable-abi-breaking-checks. Use "with-asserts", "yes" or "no"])
768 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
769 AC_ARG_ENABLE(debug-runtime,
770 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
771 if test ${enableval} = "no" ; then
772 AC_SUBST(DEBUG_RUNTIME,[[]])
774 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
777 dnl --enable-debug-symbols : should even optimized compiler libraries
778 dnl have debug symbols?
779 AC_ARG_ENABLE(debug-symbols,
780 AS_HELP_STRING(--enable-debug-symbols,[Build compiler with debug symbols (default is NO if optimization is on and YES if it's off)]),,enableval=no)
781 if test ${enableval} = "no" ; then
782 AC_SUBST(DEBUG_SYMBOLS,[[]])
784 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
787 dnl --enable-keep-symbols : do not strip installed executables
788 AC_ARG_ENABLE(keep-symbols,
789 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
790 if test ${enableval} = "no" ; then
791 AC_SUBST(KEEP_SYMBOLS,[[]])
793 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
796 dnl --enable-jit: check whether they want to enable the jit
798 AS_HELP_STRING(--enable-jit,
799 [Enable Just In Time Compiling (default is YES)]),,
801 if test ${enableval} = "no"
805 case "$llvm_cv_target_arch" in
806 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
807 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
808 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
809 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
810 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
811 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
812 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
813 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
814 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
815 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
816 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
817 WebAssembly) AC_SUBST(TARGET_HAS_JIT,0) ;;
818 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
822 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
823 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
825 dnl Allow enablement of building and installing docs
827 AS_HELP_STRING([--enable-docs],
828 [Build documents (default is YES)]),,
831 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
832 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
833 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
834 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
837 dnl Allow enablement of doxygen generated documentation
838 AC_ARG_ENABLE(doxygen,
839 AS_HELP_STRING([--enable-doxygen],
840 [Build doxygen documentation (default is NO)]),,
843 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
844 no|default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
845 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
848 dnl Allow enablement of doxygen search engine
849 AC_ARG_ENABLE(doxygen-search,
850 AS_HELP_STRING([--enable-doxygen-search],
851 [Enable doxygen search support (default is NO)]),,
853 ENABLE_DOXYGEN_SEARCH="$enableval"
857 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"]) ;;
860 AC_ARG_ENABLE(doxygen-external-search,
861 AS_HELP_STRING([--enable-doxygen-external-search],
862 [Enable doxygen exteranl search (default is NO)]),,
864 ENABLE_DOXYGEN_EXTERNAL_SEARCH="$enableval"
868 dnl To match with the CMake behavior, enable doxygen when
869 dnl --enable-doxygen-external-search is enabled.
870 case "$ENABLE_DOXYGEN_SEARCH" in
871 yes|default) ENABLE_DOXYGEN_SEARCH="yes" ;;
872 no) AC_MSG_ERROR([The option --enable-doxygen-external-search requires --enable-doxygen-search]) ;;
876 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-external-search. Use "yes" or "no"]) ;;
879 AC_ARG_WITH(doxygen-search-engine-url,
880 AS_HELP_STRING([--with-doxygen-search-engine-url],
881 [Specify the external search engine for doxygen]),,)
882 WITH_DOXYGEN_SEARCH_ENGINE_URL="$withval"
884 AC_ARG_WITH(doxygen-search-mappings,
885 AS_HELP_STRING([--with-doxygen-search-mappings],
886 [Specify the extra search mapping for doxygen]),,)
887 WITH_DOXYGEN_SEARCH_MAPPINGS="$withval"
889 case "$ENABLE_DOXYGEN_SEARCH" in
891 if test "$ENABLE_DOXYGEN" = "0" ; then
892 AC_MSG_ERROR([The option --enable-doxygen-search requires --enable-doxygen.])
895 AC_SUBST(enable_searchengine,[YES])
897 case "$ENABLE_DOXYGEN_EXTERNAL_SEARCH" in
899 AC_SUBST(enable_external_search,[YES])
900 AC_SUBST(enable_server_based_search,[YES])
901 AC_SUBST(searchengine_url,["$WITH_DOXYGEN_SEARCH_ENGINE_URL"])
902 AC_SUBST(extra_search_mappings,["$WITH_DOXYGEN_SEARCH_MAPPINGS"])
906 AC_SUBST(enable_external_search,[NO])
907 AC_SUBST(enable_server_based_search,[NO])
908 AC_SUBST(searchengine_url,[])
909 AC_SUBST(extra_search_mappings,[])
915 AC_SUBST(enable_searchengine,[NO])
916 AC_SUBST(searchengine_url,[])
917 AC_SUBST(enable_server_based_search,[NO])
918 AC_SUBST(enable_external_search,[NO])
919 AC_SUBST(extra_search_mappings,[])
923 AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"])
927 dnl Allow enablement of doxygen generated Qt help files
928 AC_ARG_ENABLE(doxygen-qt-help,
929 AS_HELP_STRING([--enable-doxygen-qt-help],
930 [Build Qt help files (default is NO)]),,
934 if test "$ENABLE_DOXYGEN" = "0" ; then
935 AC_MSG_ERROR([The option --enable-doxygen-qt-help requires --enable-doxygen.])
938 AC_PATH_PROG(QHELPGENERATOR, [qhelpgenerator], [qhelpgenerator])
940 dnl Qt help file for llvm doxygen documentation
941 AC_SUBST(llvm_doxygen_generate_qhp,[YES])
942 AC_SUBST(llvm_doxygen_qch_filename,[org.llvm.qch])
943 AC_SUBST(llvm_doxygen_qhp_namespace,[org.llvm])
944 AC_SUBST(llvm_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
945 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,["$PACKAGE_STRING"])
946 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,["$PACKAGE_NAME,$PACKAGE_VERSION"])
948 dnl Qt help file for clang doxygen documentation
949 AC_SUBST(clang_doxygen_generate_qhp,[YES])
950 AC_SUBST(clang_doxygen_qch_filename,[org.llvm.clang.qch])
951 AC_SUBST(clang_doxygen_qhp_namespace,[org.llvm.clang])
952 AC_SUBST(clang_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
953 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
954 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
958 AC_SUBST(llvm_doxygen_generate_qhp,[NO])
959 AC_SUBST(llvm_doxygen_qch_filename,[])
960 AC_SUBST(llvm_doxygen_qhp_namespace,[])
961 AC_SUBST(llvm_doxygen_qhelpgenerator_path,[])
962 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,[])
963 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,[])
965 AC_SUBST(clang_doxygen_generate_qhp,[NO])
966 AC_SUBST(clang_doxygen_qch_filename,[])
967 AC_SUBST(clang_doxygen_qhp_namespace,[])
968 AC_SUBST(clang_doxygen_qhelpgenerator_path,[])
969 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
970 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
974 AC_MSG_ERROR([Invalid setting for --enable-doxygen-qt-help. Use "yes" or "no"]) ;;
977 dnl Allow disablement of threads
978 AC_ARG_ENABLE(threads,
979 AS_HELP_STRING([--enable-threads],
980 [Use threads if available (default is YES)]),,
983 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
984 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
985 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
986 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
988 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
989 [Define if threads enabled])
991 dnl Allow disablement of pthread.h
992 AC_ARG_ENABLE(pthreads,
993 AS_HELP_STRING([--enable-pthreads],
994 [Use pthreads if available (default is YES)]),,
997 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
998 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
999 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
1000 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
1003 dnl Allow disablement of zlib
1005 AS_HELP_STRING([--enable-zlib],
1006 [Use zlib for compression/decompression if
1007 available (default is YES)]),,
1009 case "$enableval" in
1010 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1011 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
1012 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1013 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
1015 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
1016 [Define if zlib is enabled])
1018 dnl Allow building without position independent code
1020 AS_HELP_STRING([--enable-pic],
1021 [Build LLVM with Position Independent Code (default is YES)]),,
1023 case "$enableval" in
1024 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
1025 no) AC_SUBST(ENABLE_PIC,[0]) ;;
1026 default) AC_SUBST(ENABLE_PIC,[1]) ;;
1027 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
1029 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
1030 [Define if position independent code is enabled])
1032 dnl Allow building a shared library and linking tools against it.
1033 AC_ARG_ENABLE(shared,
1034 AS_HELP_STRING([--enable-shared],
1035 [Build a shared library and link tools against it (default is NO)]),,
1037 case "$enableval" in
1038 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
1039 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
1040 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
1041 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
1044 dnl Allow libstdc++ is embedded in LLVM.dll.
1045 AC_ARG_ENABLE(embed-stdcxx,
1046 AS_HELP_STRING([--enable-embed-stdcxx],
1047 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
1049 case "$enableval" in
1050 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
1051 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1052 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1053 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
1056 dnl Enable embedding timestamp information into build.
1057 AC_ARG_ENABLE(timestamps,
1058 AS_HELP_STRING([--enable-timestamps],
1059 [Enable embedding timestamp information in build (default is YES)]),,
1061 case "$enableval" in
1062 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1063 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
1064 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1065 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
1067 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
1068 [Define if timestamp information (e.g., __DATE__) is allowed])
1070 dnl Enable support for showing backtraces.
1071 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
1072 [--enable-backtraces],
1073 [Enable embedding backtraces on crash (default is YES)]),
1074 [case "$enableval" in
1075 yes) llvm_cv_enable_backtraces="yes" ;;
1076 no) llvm_cv_enable_backtraces="no" ;;
1077 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
1079 llvm_cv_enable_backtraces="yes")
1080 if test "$llvm_cv_enable_backtraces" = "yes" ; then
1081 AC_DEFINE([ENABLE_BACKTRACES],[1],
1082 [Define if you want backtraces on crash])
1085 dnl Enable installing platform specific signal handling overrides, for improved
1086 dnl CrashRecovery support or interaction with crash reporting software. This
1087 dnl support may be inappropriate for some clients embedding LLVM as a library.
1088 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
1089 [--enable-crash-overrides],
1090 [Enable crash handling overrides (default is YES)]),
1091 [case "$enableval" in
1092 yes) llvm_cv_enable_crash_overrides="yes" ;;
1093 no) llvm_cv_enable_crash_overrides="no" ;;
1094 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
1096 llvm_cv_enable_crash_overrides="yes")
1097 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
1098 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
1099 [Define to enable crash handling overrides])
1102 dnl List all possible targets
1103 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ AMDGPU BPF"
1104 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
1106 dnl Allow specific targets to be specified for building (or not)
1108 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
1109 [Build specific host targets: all or target1,target2,... Valid targets are:
1110 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
1111 xcore, msp430, nvptx, systemz, r600, bpf, wasm, and cpp (default=all)]),,
1113 if test "$enableval" = host-only ; then
1116 case "$enableval" in
1117 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
1118 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
1120 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1121 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1122 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1123 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1124 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1125 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1126 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1127 bpf) TARGETS_TO_BUILD="BPF $TARGETS_TO_BUILD" ;;
1128 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1129 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1130 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1131 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1132 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1133 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1134 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
1135 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1136 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1137 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1138 amdgpu) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1139 r600) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1140 wasm) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1141 host) case "$llvm_cv_target_arch" in
1142 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1143 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1144 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1145 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1146 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1147 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1148 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1149 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1150 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1151 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1152 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1153 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1154 WebAssembly) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1155 *) AC_MSG_ERROR([Can not set target to build]) ;;
1157 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
1163 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
1164 [Build experimental host targets: disable or target1,target2,...
1165 (default=disable)]),,
1168 if test ${enableval} != "disable"
1170 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
1173 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1175 dnl Determine whether we are building LLVM support for the native architecture.
1176 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1177 for a_target in $TARGETS_TO_BUILD; do
1178 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1179 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1180 [LLVM architecture name for the native architecture, if available])
1181 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1182 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1183 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1184 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1185 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1186 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1188 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1189 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1191 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1192 [LLVM name for the native Target init function, if available])
1193 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1194 [LLVM name for the native TargetInfo init function, if available])
1195 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1196 [LLVM name for the native target MC init function, if available])
1197 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1198 [LLVM name for the native AsmPrinter init function, if available])
1199 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1200 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1201 [LLVM name for the native AsmParser init function, if available])
1203 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1204 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1205 [LLVM name for the native Disassembler init function, if available])
1210 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1211 dnl target feature def files.
1212 LLVM_ENUM_TARGETS=""
1213 LLVM_ENUM_ASM_PRINTERS=""
1214 LLVM_ENUM_ASM_PARSERS=""
1215 LLVM_ENUM_DISASSEMBLERS=""
1216 for target_to_build in $TARGETS_TO_BUILD; do
1217 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1218 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1219 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1221 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1222 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1224 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1225 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1228 AC_SUBST(LLVM_ENUM_TARGETS)
1229 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1230 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1231 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1233 dnl Override the option to use for optimized builds.
1234 AC_ARG_WITH(optimize-option,
1235 AS_HELP_STRING([--with-optimize-option],
1236 [Select the compiler options to use for optimized builds]),,
1238 AC_MSG_CHECKING([optimization flags])
1241 case "$llvm_cv_os_type" in
1242 FreeBSD) optimize_option=-O2 ;;
1243 MingW) optimize_option=-O2 ;;
1244 *) optimize_option=-O3 ;;
1246 *) optimize_option="$withval" ;;
1248 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1249 AC_MSG_RESULT([$optimize_option])
1251 dnl Specify extra build options
1252 AC_ARG_WITH(extra-options,
1253 AS_HELP_STRING([--with-extra-options],
1254 [Specify additional options to compile LLVM with]),,
1257 default) EXTRA_OPTIONS= ;;
1258 *) EXTRA_OPTIONS=$withval ;;
1260 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1262 dnl Specify extra linker build options
1263 AC_ARG_WITH(extra-ld-options,
1264 AS_HELP_STRING([--with-extra-ld-options],
1265 [Specify additional options to link LLVM with]),,
1268 default) EXTRA_LD_OPTIONS= ;;
1269 *) EXTRA_LD_OPTIONS=$withval ;;
1271 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1273 dnl Allow specific bindings to be specified for building (or not)
1274 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1275 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1277 BINDINGS_TO_BUILD=""
1278 case "$enableval" in
1279 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1280 all ) BINDINGS_TO_BUILD="ocaml" ;;
1281 none | no) BINDINGS_TO_BUILD="" ;;
1282 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1283 case "$a_binding" in
1284 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1285 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1291 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1292 dnl script for bindings/ocaml/configure, except that its auto value depends on
1293 dnl OCAMLC, which is found here to support tests.
1294 AC_ARG_WITH([ocaml-libdir],
1295 [AS_HELP_STRING([--with-ocaml-libdir],
1296 [Specify install location for ocaml bindings (default is stdlib)])],
1300 auto) with_ocaml_libdir="$withval" ;;
1301 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1302 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1305 AC_ARG_WITH(clang-srcdir,
1306 AS_HELP_STRING([--with-clang-srcdir],
1307 [Directory to the out-of-tree Clang source]),,
1310 -) clang_src_root="" ;;
1311 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1312 *) clang_src_root="$ac_pwd/$withval" ;;
1314 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1316 AC_ARG_WITH(clang-resource-dir,
1317 AS_HELP_STRING([--with-clang-resource-dir],
1318 [Relative directory from the Clang binary for resource files]),,
1320 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1321 [Relative directory for resource files])
1323 AC_ARG_WITH(c-include-dirs,
1324 AS_HELP_STRING([--with-c-include-dirs],
1325 [Colon separated list of directories clang will search for headers]),,
1327 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1328 [Directories clang will search for headers])
1330 # Clang normally uses the system c++ headers and libraries. With this option,
1331 # clang will use the ones provided by a gcc installation instead. This option should
1332 # be passed the same value that was used with --prefix when configuring gcc.
1333 AC_ARG_WITH(gcc-toolchain,
1334 AS_HELP_STRING([--with-gcc-toolchain],
1335 [Directory where gcc is installed.]),,
1337 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1338 [Directory where gcc is installed.])
1340 AC_ARG_WITH(default-sysroot,
1341 AS_HELP_STRING([--with-default-sysroot],
1342 [Add --sysroot=<path> to all compiler invocations.]),,
1344 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1345 [Default <path> to all compiler invocations for --sysroot=<path>.])
1347 AC_ARG_WITH(clang-default-openmp-runtime,
1348 AS_HELP_STRING([--with-clang-default-openmp-runtime],
1349 [The default OpenMP runtime for Clang.]),,
1351 AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
1352 [Default OpenMP runtime used by -fopenmp.])
1354 dnl Allow linking of LLVM with GPLv3 binutils code.
1355 AC_ARG_WITH(binutils-include,
1356 AS_HELP_STRING([--with-binutils-include],
1357 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1360 default) WITH_BINUTILS_INCDIR=default ;;
1361 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1362 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1364 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1365 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1366 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1367 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1368 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1372 dnl Specify the URL where bug reports should be submitted.
1373 AC_ARG_WITH(bug-report-url,
1374 AS_HELP_STRING([--with-bug-report-url],
1375 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1376 withval="http://llvm.org/bugs/")
1377 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1380 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1381 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1382 [--enable-terminfo],
1383 [Query the terminfo database if available (default is YES)]),
1384 [case "$enableval" in
1385 yes) llvm_cv_enable_terminfo="yes" ;;
1386 no) llvm_cv_enable_terminfo="no" ;;
1387 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1389 llvm_cv_enable_terminfo="yes")
1390 case "$llvm_cv_enable_terminfo" in
1391 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1392 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1395 dnl --enable-libedit: check whether the user wants to turn off libedit.
1396 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1398 [Use libedit if available (default is YES)]),
1399 [case "$enableval" in
1400 yes) llvm_cv_enable_libedit="yes" ;;
1401 no) llvm_cv_enable_libedit="no" ;;
1402 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1404 llvm_cv_enable_libedit="yes")
1406 dnl --enable-libffi : check whether the user wants to turn off libffi:
1407 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1408 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1409 [case "$enableval" in
1410 yes) llvm_cv_enable_libffi="yes" ;;
1411 no) llvm_cv_enable_libffi="no" ;;
1412 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1414 llvm_cv_enable_libffi=no)
1416 AC_ARG_WITH(internal-prefix,
1417 AS_HELP_STRING([--with-internal-prefix],
1418 [Installation directory for internal files]),,
1420 AC_SUBST(INTERNAL_PREFIX,[$withval])
1422 dnl===-----------------------------------------------------------------------===
1424 dnl=== SECTION 4: Check for programs we need and that they are the right version
1426 dnl===-----------------------------------------------------------------------===
1428 dnl Check for the tools that the makefiles require
1431 AC_PATH_PROG(NM, [nm], [nm])
1432 AC_PATH_PROG(CMP, [cmp], [cmp])
1433 AC_PATH_PROG(CP, [cp], [cp])
1434 AC_PATH_PROG(DATE, [date], [date])
1435 AC_PATH_PROG(FIND, [find], [find])
1436 AC_PATH_PROG(GREP, [grep], [grep])
1437 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1438 AC_PATH_PROG(MV, [mv], [mv])
1440 AC_CHECK_TOOL(AR, ar, false)
1441 AC_PATH_PROG(RM, [rm], [rm])
1442 AC_PATH_PROG(SED, [sed], [sed])
1443 AC_PATH_PROG(TAR, [tar], [gtar])
1444 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1446 dnl Looking for misc. graph plotting software
1447 AC_PATH_PROG(DOT, [dot], [echo dot])
1448 if test "$DOT" != "echo dot" ; then
1449 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1450 dnl If we're targeting for mingw we should emit windows paths, not msys
1451 if test "$llvm_cv_os_type" = "MingW" ; then
1452 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1454 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1455 [Define to path to dot program if found or 'echo dot' otherwise])
1458 dnl Find the install program
1460 dnl Prepend src dir to install path dir if it's a relative path
1461 dnl This is a hack for installs that take place in something other
1462 dnl than the top level.
1464 [[\\/$]]* | ?:[[\\/]]* ) ;;
1465 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1468 dnl Checks for documentation and testing tools that we can do without. If these
1469 dnl are not found then they are set to "true" which always succeeds but does
1470 dnl nothing. This just lets the build output show that we could have done
1471 dnl something if the tool was available.
1472 AC_PATH_PROG(BZIP2, [bzip2])
1473 AC_PATH_PROG(CAT, [cat])
1474 AC_PATH_PROG(DOXYGEN, [doxygen])
1475 AC_PATH_PROG(GROFF, [groff])
1476 AC_PATH_PROG(GZIPBIN, [gzip])
1477 AC_PATH_PROG(PDFROFF, [pdfroff])
1478 AC_PATH_PROG(ZIP, [zip])
1479 AC_PATH_PROG(GO, [go])
1480 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1481 AC_PATH_PROGS(GAS, [gas as])
1483 dnl Get the version of the linker in use.
1486 dnl Determine whether the linker supports the -R option.
1489 dnl Determine whether the compiler supports the -rdynamic option.
1490 AC_LINK_EXPORT_DYNAMIC
1492 dnl Determine whether the linker supports the --version-script option.
1493 AC_LINK_VERSION_SCRIPT
1495 AC_CHECK_HEADERS([errno.h])
1497 case "$llvm_cv_os_type" in
1498 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1499 Darwin) llvm_shlib_ext=.dylib ;;
1500 *) llvm_shlib_ext=.so ;;
1503 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1505 AC_MSG_CHECKING([tool compatibility])
1507 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1508 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1509 dnl to support those options.
1510 dnl "icc" emits gcc signatures
1511 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1523 if test "$GCC" != "yes" && test "$ICC" != "yes"
1525 AC_MSG_ERROR([gcc|icc required but not found])
1528 dnl Ensure that compilation tools are compatible with GCC extensions
1529 if test "$GXX" != "yes" && test "$IXX" != "yes"
1531 AC_MSG_ERROR([g++|clang++|icc required but not found])
1534 dnl Verify that GCC is version 3.0 or higher
1535 if test "$GCC" = "yes"
1540 #if !defined(__GNUC__) || __GNUC__ < 3
1541 #error Unsupported GCC version
1545 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1548 dnl Check for GNU Make. We use its extensions, so don't build without it
1549 if test -z "$llvm_cv_gnu_make_command"
1551 AC_MSG_ERROR([GNU Make required but not found])
1554 dnl Tool compatibility is okay if we make it here.
1557 dnl Check optional compiler flags.
1558 AC_MSG_CHECKING([optional compiler flags])
1559 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1560 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1561 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1563 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1564 dnl false positives, so disable it.
1566 NO_MAYBE_UNINITIALIZED=
1567 if test "$GXX" = "yes"
1569 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1570 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1571 dnl known to be uninitialized from cases which might be uninitialized. We
1572 dnl still want to catch the first kind of errors.
1573 if test -z "$NO_MAYBE_UNINITIALIZED"
1575 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1579 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1580 dnl -Wno-comment to the flags.
1582 llvm_cv_old_cxxflags="$CXXFLAGS"
1583 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1586 AC_LANG_SOURCE([[// Comment \o\
1588 int main() { return 0; }
1592 no_comment=-Wno-comment
1595 AC_SUBST(NO_COMMENT, [$no_comment])
1596 CXXFLAGS="$llvm_cv_old_cxxflags"
1598 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1600 AC_ARG_WITH([python],
1601 [AS_HELP_STRING([--with-python], [path to python])],
1602 [PYTHON="$withval"])
1604 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1605 AC_MSG_CHECKING([for python])
1606 AC_MSG_RESULT([user defined: $with_python])
1608 if test -n "$PYTHON" ; then
1609 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1612 AC_PATH_PROG([PYTHON], [python python2 python27],
1613 [AC_MSG_RESULT([not found])
1614 AC_MSG_ERROR([could not find python 2.7 or higher])])
1617 AC_MSG_CHECKING([for python >= 2.7])
1618 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1619 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1620 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1621 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1622 if test "$ac_python_version_major" -gt "2" || \
1623 (test "$ac_python_version_major" -eq "2" && \
1624 test "$ac_python_version_minor" -ge "7") ; then
1625 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1627 AC_MSG_RESULT([not found])
1628 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1631 dnl===-----------------------------------------------------------------------===
1633 dnl=== SECTION 5: Check for libraries
1635 dnl===-----------------------------------------------------------------------===
1638 if test "$llvm_cv_os_type" = "MingW" ; then
1639 AC_CHECK_LIB(imagehlp, main)
1640 AC_CHECK_LIB(ole32, main)
1641 AC_CHECK_LIB(psapi, main)
1642 AC_CHECK_LIB(shell32, main)
1645 dnl dlopen() is required for plugin support.
1646 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1647 [Define if dlopen() is available on this platform.]),
1648 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1650 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1651 dnl macros to detect whether clock_gettime is available, this just finds the
1652 dnl right libraries to link with.
1653 AC_SEARCH_LIBS(clock_gettime,rt)
1655 dnl The curses library is optional; used for querying terminal info
1656 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1657 dnl We need the has_color functionality in curses for it to be useful.
1658 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1659 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1660 [Define if the setupterm() function is supported this platform.]))
1663 dnl The libedit library is optional; used by lib/LineEditor
1664 if test "$llvm_cv_enable_libedit" = "yes" ; then
1665 AC_SEARCH_LIBS(el_init,edit,
1666 AC_DEFINE([HAVE_LIBEDIT],[1],
1667 [Define if libedit is available on this platform.]))
1670 dnl libffi is optional; used to call external functions from the interpreter
1671 if test "$llvm_cv_enable_libffi" = "yes" ; then
1672 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1673 [Define if libffi is available on this platform.]),
1674 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1677 dnl mallinfo is optional; the code can compile (minus features) without it
1678 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1679 [Define if mallinfo() is available on this platform.]))
1681 dnl pthread locking functions are optional - but llvm will not be thread-safe
1683 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1684 AC_CHECK_LIB(pthread, pthread_mutex_init)
1685 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1686 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1687 [Have pthread_mutex_lock]))
1688 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1689 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1690 [Have pthread_rwlock_init]))
1691 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1692 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1693 [Have pthread_getspecific]))
1696 dnl zlib is optional; used for compression/uncompression
1697 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1698 AC_CHECK_LIB(z, compress2)
1701 dnl Allow OProfile support for JIT output.
1702 AC_ARG_WITH(oprofile,
1703 AS_HELP_STRING([--with-oprofile=<prefix>],
1704 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1706 AC_SUBST(USE_OPROFILE, [1])
1708 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1710 AC_SUBST(USE_OPROFILE, [0]) ;;
1711 *) llvm_cv_oppath="${withval}/lib/oprofile"
1712 CPPFLAGS="-I${withval}/include";;
1714 case $llvm_cv_os_type in
1716 if test -n "$llvm_cv_oppath" ; then
1717 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1718 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1719 dnl libbfd is not included properly in libopagent in some Debian
1720 dnl versions. If libbfd isn't found at all, we assume opagent works
1722 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1723 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1724 echo "Error! You need to have libopagent around."
1727 AC_CHECK_HEADER([opagent.h], [], [
1728 echo "Error! You need to have opagent.h around."
1733 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1737 AC_SUBST(USE_OPROFILE, [0])
1739 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1740 [Define if we have the oprofile JIT-support library])
1742 dnl Enable support for Intel JIT Events API.
1743 AC_ARG_WITH(intel-jitevents,
1744 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1747 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1748 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1749 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1752 case $llvm_cv_os_type in
1753 Linux|Win32|Cygwin|MingW) ;;
1754 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1757 case "$llvm_cv_target_arch" in
1759 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1763 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1765 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1766 [Define if we have the Intel JIT API runtime support library])
1768 dnl Check for libxml2
1769 dnl Right now we're just checking for the existence, we could also check for a
1770 dnl particular version via --version on xml2-config
1771 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1773 AC_MSG_CHECKING(for libxml2 includes)
1774 if test "x$XML2CONFIG" = "x"; then
1775 AC_MSG_RESULT(xml2-config not found)
1777 LIBXML2_INC=`$XML2CONFIG --cflags`
1778 AC_MSG_RESULT($LIBXML2_INC)
1779 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1780 LIBXML2_LIBS="-lxml2"])
1782 AC_SUBST(LIBXML2_LIBS)
1783 AC_SUBST(LIBXML2_INC)
1785 dnl===-----------------------------------------------------------------------===
1787 dnl=== SECTION 6: Check for header files
1789 dnl===-----------------------------------------------------------------------===
1791 dnl First, use autoconf provided macros for specific headers that we need
1792 dnl We don't check for ancient stuff or things that are guaranteed to be there
1793 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1794 dnl Generally we're looking for POSIX headers.
1796 AC_HEADER_MMAP_ANONYMOUS
1802 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1803 AC_CHECK_HEADERS([cxxabi.h], [], [],
1804 [#include <stddef.h>
1808 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1809 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1810 AC_CHECK_HEADERS([utime.h])
1811 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1812 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1813 AC_CHECK_HEADERS([valgrind/valgrind.h])
1814 AC_CHECK_HEADERS([fenv.h])
1815 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1816 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1817 AC_CHECK_HEADERS(pthread.h,
1818 AC_SUBST(HAVE_PTHREAD, 1),
1819 AC_SUBST(HAVE_PTHREAD, 0))
1821 AC_SUBST(HAVE_PTHREAD, 0)
1823 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1824 AC_CHECK_HEADERS(zlib.h,
1825 AC_SUBST(HAVE_LIBZ, 1),
1826 AC_SUBST(HAVE_LIBZ, 0))
1828 AC_SUBST(HAVE_LIBZ, 0)
1831 dnl Try to find ffi.h.
1832 if test "$llvm_cv_enable_libffi" = "yes" ; then
1833 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1836 dnl Try to find Darwin specific crash reporting libraries.
1837 AC_CHECK_HEADERS([CrashReporterClient.h])
1839 dnl Try to find Darwin specific crash reporting global.
1840 AC_MSG_CHECKING([__crashreporter_info__])
1844 extern const char *__crashreporter_info__;
1846 __crashreporter_info__ = "test";
1852 AC_MSG_RESULT([yes])
1853 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1857 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1860 dnl===-----------------------------------------------------------------------===
1862 dnl=== SECTION 7: Check for types and structures
1864 dnl===-----------------------------------------------------------------------===
1869 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1871 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1872 AC_CHECK_TYPES([uint64_t],,
1873 AC_CHECK_TYPES([u_int64_t],,
1874 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1876 dnl===-----------------------------------------------------------------------===
1878 dnl=== SECTION 8: Check for specific functions needed
1880 dnl===-----------------------------------------------------------------------===
1882 AC_CHECK_FUNCS([backtrace getcwd ])
1883 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1884 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1885 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1886 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1887 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1888 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1889 AC_CHECK_FUNCS([futimes futimens])
1893 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1894 AC_CHECK_DECLS([arc4random])
1896 dnl Check the declaration "Secure API" on Windows environments.
1897 AC_CHECK_DECLS([strerror_s])
1899 dnl Check symbols in libgcc.a for JIT on Mingw.
1900 if test "$llvm_cv_os_type" = "MingW" ; then
1901 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1902 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1903 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1904 AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))
1905 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1906 AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))
1908 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1909 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1910 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1911 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1912 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1913 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1914 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1915 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1916 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1917 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1919 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1920 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1923 dnl Check Win32 API EnumerateLoadedModules.
1924 if test "$llvm_cv_os_type" = "MingW" ; then
1925 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1929 #include <windows.h>
1930 #include <imagehlp.h>
1931 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1932 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1936 AC_MSG_RESULT([yes])
1937 llvm_cv_win32_elmcb_pcstr="PCSTR"
1941 llvm_cv_win32_elmcb_pcstr="PSTR"
1943 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1946 dnl Check for mmap support.We also need to know if /dev/zero is required to
1947 dnl be opened for allocating RWX memory.
1948 dnl Make sure we aren't attempting to configure for an unknown system
1949 if test "$llvm_cv_platform_type" = "Unix" ; then
1952 AC_NEED_DEV_ZERO_FOR_MMAP
1954 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1956 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1958 if test "$ac_cv_func_mmap_file" = "no"
1960 AC_MSG_WARN([mmap() of files required but not found])
1964 dnl atomic builtins are required for threading support.
1965 AC_MSG_CHECKING(for GCC atomic builtins)
1966 dnl Since we'll be using these atomic builtins in C++ files we should test
1967 dnl the C++ compiler.
1973 volatile unsigned long val = 1;
1974 __sync_synchronize();
1975 __sync_val_compare_and_swap(&val, 1, 0);
1976 __sync_add_and_fetch(&val, 1);
1977 __sync_sub_and_fetch(&val, 1);
1983 AC_MSG_RESULT([yes])
1984 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1988 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1989 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1993 dnl===-----------------------------------------------------------------------===
1995 dnl=== SECTION 9: Additional checks, variables, etc.
1997 dnl===-----------------------------------------------------------------------===
1999 dnl Handle 32-bit linux systems running a 64-bit kernel.
2000 dnl This has to come after section 4 because it invokes the compiler.
2001 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
2003 if test "$llvm_cv_linux_mixed" = "yes"; then
2004 llvm_cv_target_arch="x86"
2009 dnl Check whether __dso_handle is present
2010 AC_CHECK_FUNCS([__dso_handle])
2012 dnl Propagate the shared library extension that the libltdl checks did to
2013 dnl the Makefiles so we can use it there too
2014 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
2016 dnl Translate the various configuration directories and other basic
2017 dnl information into substitutions that will end up in Makefile.config.in
2018 dnl that these configured values can be used by the makefiles
2019 if test "${prefix}" = "NONE" ; then
2022 eval LLVM_PREFIX="${prefix}";
2023 eval LLVM_BINDIR="${prefix}/bin";
2024 eval LLVM_DATADIR="${prefix}/share/llvm";
2025 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
2026 eval LLVM_ETCDIR="${prefix}/etc/llvm";
2027 eval LLVM_INCLUDEDIR="${prefix}/include";
2028 eval LLVM_INFODIR="${prefix}/info";
2029 eval LLVM_MANDIR="${prefix}/man";
2030 LLVM_CONFIGTIME=`date`
2031 AC_SUBST(LLVM_PREFIX)
2032 AC_SUBST(LLVM_BINDIR)
2033 AC_SUBST(LLVM_DATADIR)
2034 AC_SUBST(LLVM_DOCSDIR)
2035 AC_SUBST(LLVM_ETCDIR)
2036 AC_SUBST(LLVM_INCLUDEDIR)
2037 AC_SUBST(LLVM_INFODIR)
2038 AC_SUBST(LLVM_MANDIR)
2039 AC_SUBST(LLVM_CONFIGTIME)
2041 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
2042 if test "${ENABLE_TIMESTAMPS}" = "0"; then
2043 LLVM_CONFIGTIME="(timestamp not enabled)"
2046 dnl Place the various directories into the config.h file as #defines so that we
2047 dnl can know about the installation paths within LLVM.
2048 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
2049 [Installation prefix directory])
2050 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
2051 [Installation directory for binary executables])
2052 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
2053 [Installation directory for data files])
2054 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
2055 [Installation directory for documentation])
2056 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
2057 [Installation directory for config files])
2058 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
2059 [Installation directory for include files])
2060 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
2061 [Installation directory for .info files])
2062 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
2063 [Installation directory for man pages])
2064 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
2065 [Time at which LLVM was configured])
2066 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
2067 [Host triple LLVM will be executed on])
2068 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
2069 [Target triple LLVM will generate code for by default])
2071 dnl Determine which bindings to build.
2072 if test "$BINDINGS_TO_BUILD" = auto ; then
2073 BINDINGS_TO_BUILD=""
2074 if test "x$OCAMLFIND" != x ; then
2075 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
2077 if test "x$GO" != x ; then
2078 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2079 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
2083 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
2085 dnl Do any work necessary to ensure that bindings have what they need.
2086 binding_prereqs_failed=0
2087 for a_binding in $BINDINGS_TO_BUILD ; do
2088 case "$a_binding" in
2090 if test "x$OCAMLFIND" = x ; then
2091 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
2092 binding_prereqs_failed=1
2095 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
2100 AC_SUBST(HAVE_OCAMLOPT)
2102 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
2103 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
2104 binding_prereqs_failed=1
2107 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
2111 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
2112 dnl oUnit is optional!
2114 AC_SUBST(HAVE_OCAML_OUNIT)
2116 if test "x$with_ocaml_libdir" != xauto ; then
2117 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
2119 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
2120 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
2122 # ocaml stdlib is beneath our prefix; use stdlib
2123 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
2125 # ocaml stdlib is outside our prefix; use libdir/ocaml
2126 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
2131 if test "x$GO" = x ; then
2132 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
2133 binding_prereqs_failed=1
2135 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2138 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
2139 binding_prereqs_failed=1
2145 if test "$binding_prereqs_failed" = 1 ; then
2146 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
2149 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
2150 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
2152 dnl Determine linker rpath flag
2153 if test "$llvm_cv_link_use_r" = "yes" ; then
2160 dnl Determine linker rdynamic flag
2161 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
2162 RDYNAMIC="-rdynamic"
2168 dnl===-----------------------------------------------------------------------===
2170 dnl=== SECTION 10: Specify the output files and generate it
2172 dnl===-----------------------------------------------------------------------===
2174 dnl Configure header files
2175 dnl WARNING: dnl If you add or remove any of the following config headers, then
2176 dnl you MUST also update Makefile so that the variable FilesToConfig
2177 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2178 dnl files can be updated automatically when their *.in sources change.
2179 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2180 AH_TOP([#ifndef CONFIG_H
2183 /* Exported configuration */
2184 #include "llvm/Config/llvm-config.h"])
2187 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2188 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2189 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2190 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2191 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2193 dnl Configure the makefile's configuration data
2194 AC_CONFIG_FILES([Makefile.config])
2196 dnl Configure the RPM spec file for LLVM
2197 AC_CONFIG_FILES([llvm.spec])
2199 dnl Configure doxygen's configuration file
2200 AC_CONFIG_FILES([docs/doxygen.cfg])
2202 dnl Configure clang, if present
2203 if test "${clang_src_root}" = ""; then
2204 clang_src_root="$srcdir/tools/clang"
2206 if test -f ${clang_src_root}/README.txt; then
2207 dnl Clang supports build systems which use the multilib libdir suffix.
2208 dnl The autoconf system doesn't support this so stub out that variable.
2209 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2210 [Multilib suffix for libdir.])
2212 dnl Use variables to stay under 80 columns.
2213 configh="include/clang/Config/config.h"
2214 doxy="docs/doxygen.cfg"
2215 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2216 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2219 dnl OCaml findlib META file
2220 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2222 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2223 test "x$program_prefix" = "xNONE" && program_prefix=""
2224 AC_SUBST([program_prefix])
2227 dnl Do special configuration of Makefiles
2228 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2229 AC_CONFIG_MAKEFILE(Makefile)
2230 AC_CONFIG_MAKEFILE(Makefile.common)
2231 AC_CONFIG_MAKEFILE(examples/Makefile)
2232 AC_CONFIG_MAKEFILE(lib/Makefile)
2233 AC_CONFIG_MAKEFILE(test/Makefile)
2234 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2235 AC_CONFIG_MAKEFILE(unittests/Makefile)
2236 AC_CONFIG_MAKEFILE(tools/Makefile)
2237 AC_CONFIG_MAKEFILE(utils/Makefile)
2238 AC_CONFIG_MAKEFILE(projects/Makefile)
2239 AC_CONFIG_MAKEFILE(bindings/Makefile)
2240 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2242 dnl Finally, crank out the output