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],[3.6.0svn],[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])
46 AC_SUBST([LLVM_VERSION_MAJOR])
47 AC_SUBST([LLVM_VERSION_MINOR])
48 AC_SUBST([LLVM_VERSION_PATCH])
49 AC_SUBST([LLVM_VERSION_SUFFIX])
51 dnl Provide a copyright substitution and ensure the copyright notice is included
52 dnl in the output of --version option of the generated configure script.
53 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
54 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
56 dnl Indicate that we require autoconf 2.60 or later.
59 dnl Verify that the source directory is valid. This makes sure that we are
60 dnl configuring LLVM and not some other package (it validates --srcdir argument)
61 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
63 dnl Place all of the extra autoconf files into the config subdirectory. Tell
64 dnl various tools where the m4 autoconf macros are.
65 AC_CONFIG_AUX_DIR([autoconf])
67 dnl Quit if the source directory has already been configured.
68 dnl NOTE: This relies upon undocumented autoconf behavior.
69 if test ${srcdir} != "." ; then
70 if test -f ${srcdir}/include/llvm/Config/config.h ; then
71 AC_MSG_ERROR([Already configured in ${srcdir}])
75 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
76 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
80 dnl We need to check for the compiler up here to avoid anything else
81 dnl starting with a different one.
83 AC_PROG_CXX(clang++ g++)
86 dnl If CXX is Clang, check that it can find and parse C++ standard library
88 if test "$CXX" = "clang++" ; then
89 AC_MSG_CHECKING([whether clang works])
91 dnl Note that space between 'include' and '(' is required. There's a broken
92 dnl regex in aclocal that otherwise will think that we call m4's include
94 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
95 #if __has_include (<cxxabi.h>)
98 #if __has_include (<unwind.h>)
107 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
112 dnl Set up variables that track whether the host compiler is GCC or Clang where
113 dnl we can effectively sanity check them. We don't try to sanity check all the
114 dnl other possible compilers.
115 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
117 llvm_cv_cxx_compiler=unknown
118 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
122 llvm_cv_cxx_compiler=clang,
123 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
127 llvm_cv_cxx_compiler=gcc, [])])
129 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
131 dnl Configure all of the projects present in our source tree. While we could
132 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
133 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
134 dnl Instead we match on the known projects.
137 dnl One tricky part of doing this is that some projects depend upon other
138 dnl projects. For example, several projects rely upon the LLVM test suite.
139 dnl We want to configure those projects first so that their object trees are
140 dnl created before running the configure scripts of projects that depend upon
144 dnl Several projects use the LLVM test suite, so configure it next.
145 if test -d ${srcdir}/projects/test-suite ; then
146 AC_CONFIG_SUBDIRS([projects/test-suite])
149 dnl llvm-test is the old name of the test-suite, kept here for backwards
151 if test -d ${srcdir}/projects/llvm-test ; then
152 AC_CONFIG_SUBDIRS([projects/llvm-test])
155 dnl Some projects use poolalloc; configure that next
156 if test -d ${srcdir}/projects/poolalloc ; then
157 AC_CONFIG_SUBDIRS([projects/poolalloc])
160 if test -d ${srcdir}/projects/llvm-poolalloc ; then
161 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
164 dnl Check for all other projects
165 for i in `ls ${srcdir}/projects`
167 if test -d ${srcdir}/projects/${i} ; then
169 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
176 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
182 dnl Disable the build of polly, even if it is checked out into tools/polly.
184 AS_HELP_STRING([--enable-polly],
185 [Use polly if available (default is YES)]),,
188 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
189 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
190 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
191 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
195 dnl Check if polly is checked out into tools/polly and configure it if
197 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
198 AC_SUBST(LLVM_HAS_POLLY,1)
199 AC_CONFIG_SUBDIRS([tools/polly])
202 dnl===-----------------------------------------------------------------------===
204 dnl=== SECTION 2: Architecture, target, and host checks
206 dnl===-----------------------------------------------------------------------===
208 dnl Check the target for which we're compiling and the host that will do the
209 dnl compilations. This will tell us which LLVM compiler will be used for
210 dnl compiling SSA into object code. This needs to be done early because
211 dnl following tests depend on it.
214 dnl Determine the platform type and cache its value. This helps us configure
215 dnl the System library to the correct build platform.
216 AC_CACHE_CHECK([type of operating system we're going to host on],
220 llvm_cv_link_all_option="-Wl,--whole-archive"
221 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
222 llvm_cv_os_type="AIX"
223 llvm_cv_platform_type="Unix" ;;
225 llvm_cv_link_all_option="-Wl,--whole-archive"
226 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
227 llvm_cv_os_type="IRIX"
228 llvm_cv_platform_type="Unix" ;;
230 llvm_cv_link_all_option="-Wl,--whole-archive"
231 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
232 llvm_cv_os_type="Cygwin"
233 llvm_cv_platform_type="Unix" ;;
235 llvm_cv_link_all_option="-Wl,-all_load"
236 llvm_cv_no_link_all_option="-Wl,-noall_load"
237 llvm_cv_os_type="Darwin"
238 llvm_cv_platform_type="Unix" ;;
240 llvm_cv_link_all_option="-Wl,-all_load"
241 llvm_cv_no_link_all_option="-Wl,-noall_load"
242 llvm_cv_os_type="Minix"
243 llvm_cv_platform_type="Unix" ;;
245 llvm_cv_link_all_option="-Wl,--whole-archive"
246 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
247 llvm_cv_os_type="FreeBSD"
248 llvm_cv_platform_type="Unix" ;;
250 llvm_cv_link_all_option="-Wl,--whole-archive"
251 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
252 llvm_cv_os_type="GNU/kFreeBSD"
253 llvm_cv_platform_type="Unix" ;;
255 llvm_cv_link_all_option="-Wl,--whole-archive"
256 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
257 llvm_cv_os_type="OpenBSD"
258 llvm_cv_platform_type="Unix" ;;
260 llvm_cv_link_all_option="-Wl,--whole-archive"
261 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
262 llvm_cv_os_type="NetBSD"
263 llvm_cv_platform_type="Unix" ;;
265 llvm_cv_link_all_option="-Wl,--whole-archive"
266 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
267 llvm_cv_os_type="DragonFly"
268 llvm_cv_platform_type="Unix" ;;
270 llvm_cv_link_all_option="-Wl,--whole-archive"
271 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
272 llvm_cv_os_type="HP-UX"
273 llvm_cv_platform_type="Unix" ;;
275 llvm_cv_link_all_option="-Wl,--whole-archive"
276 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
277 llvm_cv_os_type="Interix"
278 llvm_cv_platform_type="Unix" ;;
280 llvm_cv_link_all_option="-Wl,--whole-archive"
281 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
282 llvm_cv_os_type="Linux"
283 llvm_cv_platform_type="Unix" ;;
285 llvm_cv_link_all_option="-Wl,--whole-archive"
286 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
287 llvm_cv_os_type="GNU"
288 llvm_cv_platform_type="Unix" ;;
290 llvm_cv_link_all_option="-Wl,-z,allextract"
291 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
292 llvm_cv_os_type="SunOS"
293 llvm_cv_platform_type="Unix" ;;
295 llvm_cv_link_all_option="-Wl,--whole-archive"
296 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
297 llvm_cv_os_type="Win32"
298 llvm_cv_platform_type="Win32" ;;
300 llvm_cv_link_all_option="-Wl,--whole-archive"
301 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
302 llvm_cv_os_type="MingW"
303 llvm_cv_platform_type="Win32" ;;
305 llvm_cv_link_all_option="-Wl,--whole-archive"
306 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
307 llvm_cv_os_type="Haiku"
308 llvm_cv_platform_type="Unix" ;;
310 llvm_cv_link_all_option="-Wl,--whole-archive"
311 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
312 llvm_cv_os_type="Freestanding"
313 llvm_cv_platform_type="Unix" ;;
315 llvm_cv_link_all_option="-Wl,--whole-archive"
316 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
317 llvm_cv_os_type="Freestanding"
318 llvm_cv_platform_type="Unix" ;;
320 llvm_cv_link_all_option=""
321 llvm_cv_no_link_all_option=""
322 llvm_cv_os_type="Unknown"
323 llvm_cv_platform_type="Unknown" ;;
326 AC_CACHE_CHECK([type of operating system we're going to target],
327 [llvm_cv_target_os_type],
330 llvm_cv_target_os_type="AIX" ;;
332 llvm_cv_target_os_type="IRIX" ;;
334 llvm_cv_target_os_type="Cygwin" ;;
336 llvm_cv_target_os_type="Darwin" ;;
338 llvm_cv_target_os_type="Minix" ;;
340 llvm_cv_target_os_type="FreeBSD" ;;
342 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
344 llvm_cv_target_os_type="OpenBSD" ;;
346 llvm_cv_target_os_type="NetBSD" ;;
348 llvm_cv_target_os_type="DragonFly" ;;
350 llvm_cv_target_os_type="HP-UX" ;;
352 llvm_cv_target_os_type="Interix" ;;
354 llvm_cv_target_os_type="Linux" ;;
356 llvm_cv_target_os_type="GNU" ;;
358 llvm_cv_target_os_type="SunOS" ;;
360 llvm_cv_target_os_type="Win32" ;;
362 llvm_cv_target_os_type="MingW" ;;
364 llvm_cv_target_os_type="Haiku" ;;
366 llvm_cv_target_os_type="RTEMS" ;;
368 llvm_cv_target_os_type="NativeClient" ;;
370 llvm_cv_target_os_type="Freestanding" ;;
372 llvm_cv_target_os_type="Unknown" ;;
375 dnl Make sure we aren't attempting to configure for an unknown system
376 if test "$llvm_cv_os_type" = "Unknown" ; then
377 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
380 dnl Set the "OS" Makefile variable based on the platform type so the
381 dnl makefile can configure itself to specific build hosts
382 AC_SUBST(OS,$llvm_cv_os_type)
383 AC_SUBST(HOST_OS,$llvm_cv_os_type)
384 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
386 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
387 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
388 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
390 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
391 dnl This is used by lib/Support to determine the basic kind of implementation
393 case $llvm_cv_platform_type in
395 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
396 AC_SUBST(LLVM_ON_UNIX,[1])
397 AC_SUBST(LLVM_ON_WIN32,[0])
400 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
401 AC_SUBST(LLVM_ON_UNIX,[0])
402 AC_SUBST(LLVM_ON_WIN32,[1])
406 dnl Determine what our target architecture is and configure accordingly.
407 dnl This will allow Makefiles to make a distinction between the hardware and
409 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
411 i?86-*) llvm_cv_target_arch="x86" ;;
412 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
413 sparc*-*) llvm_cv_target_arch="Sparc" ;;
414 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
415 arm64*-*) llvm_cv_target_arch="AArch64" ;;
416 arm*-*) llvm_cv_target_arch="ARM" ;;
417 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
418 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
419 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
420 xcore-*) llvm_cv_target_arch="XCore" ;;
421 msp430-*) llvm_cv_target_arch="MSP430" ;;
422 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
423 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
424 s390x-*) llvm_cv_target_arch="SystemZ" ;;
425 *) llvm_cv_target_arch="Unknown" ;;
428 if test "$llvm_cv_target_arch" = "Unknown" ; then
429 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
432 dnl Determine the LLVM native architecture for the target
433 case "$llvm_cv_target_arch" in
434 x86) LLVM_NATIVE_ARCH="X86" ;;
435 x86_64) LLVM_NATIVE_ARCH="X86" ;;
436 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
439 dnl Define a substitution, ARCH, for the target architecture
440 AC_SUBST(ARCH,$llvm_cv_target_arch)
441 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
443 dnl Determine what our host architecture.
444 dnl This will allow MCJIT regress tests runs only for supported
447 i?86-*) host_arch="x86" ;;
448 amd64-* | x86_64-*) host_arch="x86_64" ;;
449 sparc*-*) host_arch="Sparc" ;;
450 powerpc*-*) host_arch="PowerPC" ;;
451 arm64*-*) host_arch="AArch64" ;;
452 arm*-*) host_arch="ARM" ;;
453 aarch64*-*) host_arch="AArch64" ;;
454 mips-* | mips64-*) host_arch="Mips" ;;
455 mipsel-* | mips64el-*) host_arch="Mips" ;;
456 xcore-*) host_arch="XCore" ;;
457 msp430-*) host_arch="MSP430" ;;
458 hexagon-*) host_arch="Hexagon" ;;
459 s390x-*) host_arch="SystemZ" ;;
460 *) host_arch="Unknown" ;;
463 if test "$host_arch" = "Unknown" ; then
464 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
467 AC_SUBST(HOST_ARCH,$host_arch)
469 dnl Check for build platform executable suffix if we're cross-compiling
470 if test "$cross_compiling" = yes; then
471 AC_SUBST(LLVM_CROSS_COMPILING, [1])
473 ac_build_prefix=${build_alias}-
474 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
475 if test -z "$BUILD_CXX"; then
476 AC_CHECK_PROG(BUILD_CXX, g++, g++)
477 if test -z "$BUILD_CXX"; then
478 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
482 AC_SUBST(LLVM_CROSS_COMPILING, [0])
485 dnl Check to see if there's a .svn or .git directory indicating that this
486 dnl build is being done from a checkout. This sets up several defaults for
487 dnl the command line switches. When we build with a checkout directory,
488 dnl we get a debug with assertions turned on. Without, we assume a source
489 dnl release and we get an optimized build without assertions.
490 dnl See --enable-optimized and --enable-assertions below
491 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
494 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
500 dnl===-----------------------------------------------------------------------===
502 dnl=== SECTION 3: Command line arguments for the configure script.
504 dnl===-----------------------------------------------------------------------===
506 dnl --enable-libcpp : check whether or not to use libc++ on the command line
507 AC_ARG_ENABLE(libcpp,
508 AS_HELP_STRING([--enable-libcpp],
509 [Use libc++ if available (default is NO)]),,
512 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
513 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
514 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
515 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
518 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
519 dnl be bypassed by passing a flag if necessary on a platform. We have to do
520 dnl these checks here so that we have the configuration of the standard C++
521 dnl library finished.
522 AC_ARG_ENABLE(compiler-version-checks,
523 AS_HELP_STRING([--enable-compiler-version-checks],
524 [Check the version of the host compiler (default is YES)]),,
531 case "$llvm_cv_cxx_compiler" in
533 AC_MSG_CHECKING([whether Clang is new enough])
534 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
535 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
536 #error This version of Clang is too old to build LLVM
539 [AC_MSG_RESULT([yes])],
542 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
543 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
544 bypass these sanity checks.])])
546 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
547 dnl are sometimes deeply confusing though. Here we test for an obvious
548 dnl incomplete feature in 4.6's standard library that was completed in
549 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
550 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
551 dnl that happening in the Makefile.
552 if test "$ENABLE_LIBCPP" -eq 0 ; then
553 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
554 llvm_cv_old_cxxflags="$CXXFLAGS"
555 CXXFLAGS="$CXXFLAGS -std=c++0x"
556 AC_LINK_IFELSE([AC_LANG_SOURCE([[
558 std::atomic<float> x(0.0f);
559 int main() { return (float)x; }
561 [AC_MSG_RESULT([yes])],
564 We detected a missing feature in the standard C++ library that was known to be
565 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
566 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
567 than 4.7. You will need to update your system and ensure Clang uses the newer
570 If this error is incorrect or you need to force things to work, you may pass
571 '--disable-compiler-version-checks' to configure to bypass this test.])])
572 CXXFLAGS="$llvm_cv_old_cxxflags"
576 AC_MSG_CHECKING([whether GCC is new enough])
577 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
578 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
579 #error This version of GCC is too old to build LLVM
582 [AC_MSG_RESULT([yes])],
585 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
586 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
587 bypass these sanity checks.])])
595 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
599 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
601 AS_HELP_STRING([--enable-cxx1y],
602 [Use c++1y if available (default is NO)]),,
605 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
606 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
607 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
608 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
611 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
613 AC_ARG_ENABLE(split-dwarf,
614 AS_HELP_STRING([--enable-split-dwarf],
615 [Use split-dwarf if available (default is NO)]),,
618 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
619 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
620 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
621 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
624 dnl --enable-clang-arcmt: check whether to enable clang arcmt
626 AC_ARG_ENABLE(clang-arcmt,
627 AS_HELP_STRING([--enable-clang-arcmt],
628 [Enable building of clang ARCMT (default is YES)]),
629 clang_arcmt="$enableval",
632 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
633 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
634 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
635 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
638 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
639 clang_plugin_support="yes"
640 AC_ARG_ENABLE(clang-plugin-support,
641 AS_HELP_STRING([--enable-clang-plugin-support],
642 [Enable plugin support in clang (default is YES)]),
643 clang_plugin_support="$enableval",
646 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
647 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
648 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
649 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
652 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
653 clang_static_analyzer="yes"
654 AC_ARG_ENABLE(clang-static-analyzer,
655 AS_HELP_STRING([--enable-clang-static-analyzer],
656 [Enable building of clang Static Analyzer (default is YES)]),
657 clang_static_analyzer="$enableval",
660 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
662 if test ${clang_arcmt} != "no" ; then
663 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
665 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
667 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
668 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
671 dnl --enable-optimized : check whether they want to do an optimized build:
672 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
673 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
674 if test ${enableval} = "no" ; then
675 AC_SUBST(ENABLE_OPTIMIZED,[[]])
677 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
680 dnl --enable-profiling : check whether they want to do a profile build:
681 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
682 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
683 if test ${enableval} = "no" ; then
684 AC_SUBST(ENABLE_PROFILING,[[]])
686 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
689 dnl --enable-assertions : check whether they want to turn on assertions or not:
690 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
691 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
692 if test ${enableval} = "yes" ; then
693 AC_SUBST(DISABLE_ASSERTIONS,[[]])
695 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
698 dnl --enable-werror : check whether we want Werror on by default
699 AC_ARG_ENABLE(werror,AS_HELP_STRING(
700 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
702 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
703 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
704 default) AC_SUBST(ENABLE_WERROR,[0]);;
705 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
708 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
709 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
710 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
711 if test ${enableval} = "yes" ; then
712 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
713 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
715 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
716 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
719 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
720 AC_ARG_ENABLE(debug-runtime,
721 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
722 if test ${enableval} = "no" ; then
723 AC_SUBST(DEBUG_RUNTIME,[[]])
725 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
728 dnl --enable-debug-symbols : should even optimized compiler libraries
729 dnl have debug symbols?
730 AC_ARG_ENABLE(debug-symbols,
731 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)
732 if test ${enableval} = "no" ; then
733 AC_SUBST(DEBUG_SYMBOLS,[[]])
735 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
738 dnl --enable-keep-symbols : do not strip installed executables
739 AC_ARG_ENABLE(keep-symbols,
740 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
741 if test ${enableval} = "no" ; then
742 AC_SUBST(KEEP_SYMBOLS,[[]])
744 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
747 dnl --enable-jit: check whether they want to enable the jit
749 AS_HELP_STRING(--enable-jit,
750 [Enable Just In Time Compiling (default is YES)]),,
752 if test ${enableval} = "no"
756 case "$llvm_cv_target_arch" in
757 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
758 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
759 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
760 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
761 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
762 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
763 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
764 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
765 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
766 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
767 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
768 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
772 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
773 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
775 dnl Allow enablement of building and installing docs
777 AS_HELP_STRING([--enable-docs],
778 [Build documents (default is YES)]),,
781 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
782 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
783 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
784 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
787 dnl Allow enablement of doxygen generated documentation
788 AC_ARG_ENABLE(doxygen,
789 AS_HELP_STRING([--enable-doxygen],
790 [Build doxygen documentation (default is NO)]),,
793 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
794 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
795 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
796 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
799 dnl Allow disablement of threads
800 AC_ARG_ENABLE(threads,
801 AS_HELP_STRING([--enable-threads],
802 [Use threads if available (default is YES)]),,
805 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
806 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
807 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
808 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
810 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
811 [Define if threads enabled])
813 dnl Allow disablement of pthread.h
814 AC_ARG_ENABLE(pthreads,
815 AS_HELP_STRING([--enable-pthreads],
816 [Use pthreads if available (default is YES)]),,
819 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
820 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
821 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
822 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
825 dnl Allow disablement of zlib
827 AS_HELP_STRING([--enable-zlib],
828 [Use zlib for compression/decompression if
829 available (default is YES)]),,
832 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
833 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
834 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
835 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
837 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
838 [Define if zlib is enabled])
840 dnl Allow building without position independent code
842 AS_HELP_STRING([--enable-pic],
843 [Build LLVM with Position Independent Code (default is YES)]),,
846 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
847 no) AC_SUBST(ENABLE_PIC,[0]) ;;
848 default) AC_SUBST(ENABLE_PIC,[1]) ;;
849 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
851 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
852 [Define if position independent code is enabled])
854 dnl Allow building a shared library and linking tools against it.
855 AC_ARG_ENABLE(shared,
856 AS_HELP_STRING([--enable-shared],
857 [Build a shared library and link tools against it (default is NO)]),,
860 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
861 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
862 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
863 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
866 dnl Allow libstdc++ is embedded in LLVM.dll.
867 AC_ARG_ENABLE(embed-stdcxx,
868 AS_HELP_STRING([--enable-embed-stdcxx],
869 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
872 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
873 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
874 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
875 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
878 dnl Enable embedding timestamp information into build.
879 AC_ARG_ENABLE(timestamps,
880 AS_HELP_STRING([--enable-timestamps],
881 [Enable embedding timestamp information in build (default is YES)]),,
884 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
885 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
886 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
887 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
889 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
890 [Define if timestamp information (e.g., __DATE__) is allowed])
892 dnl Enable support for showing backtraces.
893 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
894 [--enable-backtraces],
895 [Enable embedding backtraces on crash (default is YES)]),
896 [case "$enableval" in
897 yes) llvm_cv_enable_backtraces="yes" ;;
898 no) llvm_cv_enable_backtraces="no" ;;
899 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
901 llvm_cv_enable_backtraces="yes")
902 if test "$llvm_cv_enable_backtraces" = "yes" ; then
903 AC_DEFINE([ENABLE_BACKTRACES],[1],
904 [Define if you want backtraces on crash])
907 dnl Enable installing platform specific signal handling overrides, for improved
908 dnl CrashRecovery support or interaction with crash reporting software. This
909 dnl support may be inappropriate for some clients embedding LLVM as a library.
910 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
911 [--enable-crash-overrides],
912 [Enable crash handling overrides (default is YES)]),
913 [case "$enableval" in
914 yes) llvm_cv_enable_crash_overrides="yes" ;;
915 no) llvm_cv_enable_crash_overrides="no" ;;
916 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
918 llvm_cv_enable_crash_overrides="yes")
919 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
920 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
921 [Define to enable crash handling overrides])
924 dnl List all possible targets
925 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
926 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
928 dnl Allow specific targets to be specified for building (or not)
930 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
931 [Build specific host targets: all or target1,target2,... Valid targets are:
932 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
933 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
935 if test "$enableval" = host-only ; then
939 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
940 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
942 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
943 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
944 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
945 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
946 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
947 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
948 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
949 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
950 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
951 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
952 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
953 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
954 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
955 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
956 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
957 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
958 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
959 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
960 host) case "$llvm_cv_target_arch" in
961 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
962 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
963 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
964 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
965 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
966 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
967 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
968 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
969 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
970 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
971 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
972 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
973 *) AC_MSG_ERROR([Can not set target to build]) ;;
975 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
981 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
982 [Build experimental host targets: disable or target1,target2,...
983 (default=disable)]),,
986 if test ${enableval} != "disable"
988 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
991 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
993 dnl Determine whether we are building LLVM support for the native architecture.
994 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
995 for a_target in $TARGETS_TO_BUILD; do
996 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
997 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
998 [LLVM architecture name for the native architecture, if available])
999 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1000 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1001 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1002 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1003 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1004 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1006 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1007 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1009 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1010 [LLVM name for the native Target init function, if available])
1011 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1012 [LLVM name for the native TargetInfo init function, if available])
1013 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1014 [LLVM name for the native target MC init function, if available])
1015 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1016 [LLVM name for the native AsmPrinter init function, if available])
1017 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1018 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1019 [LLVM name for the native AsmParser init function, if available])
1021 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1022 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1023 [LLVM name for the native Disassembler init function, if available])
1028 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1029 dnl target feature def files.
1030 LLVM_ENUM_TARGETS=""
1031 LLVM_ENUM_ASM_PRINTERS=""
1032 LLVM_ENUM_ASM_PARSERS=""
1033 LLVM_ENUM_DISASSEMBLERS=""
1034 for target_to_build in $TARGETS_TO_BUILD; do
1035 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1036 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1037 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1039 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1040 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1042 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1043 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1046 AC_SUBST(LLVM_ENUM_TARGETS)
1047 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1048 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1049 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1051 dnl Override the option to use for optimized builds.
1052 AC_ARG_WITH(optimize-option,
1053 AS_HELP_STRING([--with-optimize-option],
1054 [Select the compiler options to use for optimized builds]),,
1056 AC_MSG_CHECKING([optimization flags])
1059 case "$llvm_cv_os_type" in
1060 FreeBSD) optimize_option=-O2 ;;
1061 MingW) optimize_option=-O2 ;;
1062 *) optimize_option=-O3 ;;
1064 *) optimize_option="$withval" ;;
1066 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1067 AC_MSG_RESULT([$optimize_option])
1069 dnl Specify extra build options
1070 AC_ARG_WITH(extra-options,
1071 AS_HELP_STRING([--with-extra-options],
1072 [Specify additional options to compile LLVM with]),,
1075 default) EXTRA_OPTIONS= ;;
1076 *) EXTRA_OPTIONS=$withval ;;
1078 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1080 dnl Specify extra linker build options
1081 AC_ARG_WITH(extra-ld-options,
1082 AS_HELP_STRING([--with-extra-ld-options],
1083 [Specify additional options to link LLVM with]),,
1086 default) EXTRA_LD_OPTIONS= ;;
1087 *) EXTRA_LD_OPTIONS=$withval ;;
1089 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1091 dnl Allow specific bindings to be specified for building (or not)
1092 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1093 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1095 BINDINGS_TO_BUILD=""
1096 case "$enableval" in
1097 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1098 all ) BINDINGS_TO_BUILD="ocaml" ;;
1099 none | no) BINDINGS_TO_BUILD="" ;;
1100 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1101 case "$a_binding" in
1102 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1103 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1109 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1110 dnl script for bindings/ocaml/configure, except that its auto value depends on
1111 dnl OCAMLC, which is found here to support tests.
1112 AC_ARG_WITH([ocaml-libdir],
1113 [AS_HELP_STRING([--with-ocaml-libdir],
1114 [Specify install location for ocaml bindings (default is stdlib)])],
1118 auto) with_ocaml_libdir="$withval" ;;
1119 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1120 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1123 AC_ARG_WITH(clang-srcdir,
1124 AS_HELP_STRING([--with-clang-srcdir],
1125 [Directory to the out-of-tree Clang source]),,
1128 -) clang_src_root="" ;;
1129 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1130 *) clang_src_root="$ac_pwd/$withval" ;;
1132 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1134 AC_ARG_WITH(clang-resource-dir,
1135 AS_HELP_STRING([--with-clang-resource-dir],
1136 [Relative directory from the Clang binary for resource files]),,
1138 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1139 [Relative directory for resource files])
1141 AC_ARG_WITH(c-include-dirs,
1142 AS_HELP_STRING([--with-c-include-dirs],
1143 [Colon separated list of directories clang will search for headers]),,
1145 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1146 [Directories clang will search for headers])
1148 # Clang normally uses the system c++ headers and libraries. With this option,
1149 # clang will use the ones provided by a gcc installation instead. This option should
1150 # be passed the same value that was used with --prefix when configuring gcc.
1151 AC_ARG_WITH(gcc-toolchain,
1152 AS_HELP_STRING([--with-gcc-toolchain],
1153 [Directory where gcc is installed.]),,
1155 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1156 [Directory where gcc is installed.])
1158 AC_ARG_WITH(default-sysroot,
1159 AS_HELP_STRING([--with-default-sysroot],
1160 [Add --sysroot=<path> to all compiler invocations.]),,
1162 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1163 [Default <path> to all compiler invocations for --sysroot=<path>.])
1165 dnl Allow linking of LLVM with GPLv3 binutils code.
1166 AC_ARG_WITH(binutils-include,
1167 AS_HELP_STRING([--with-binutils-include],
1168 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1171 default) WITH_BINUTILS_INCDIR=default ;;
1172 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1173 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1175 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1176 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1177 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1178 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1179 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1183 dnl Specify the URL where bug reports should be submitted.
1184 AC_ARG_WITH(bug-report-url,
1185 AS_HELP_STRING([--with-bug-report-url],
1186 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1187 withval="http://llvm.org/bugs/")
1188 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1191 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1192 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1193 [--enable-terminfo],
1194 [Query the terminfo database if available (default is YES)]),
1195 [case "$enableval" in
1196 yes) llvm_cv_enable_terminfo="yes" ;;
1197 no) llvm_cv_enable_terminfo="no" ;;
1198 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1200 llvm_cv_enable_terminfo="yes")
1201 case "$llvm_cv_enable_terminfo" in
1202 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1203 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1206 dnl --enable-libedit: check whether the user wants to turn off libedit.
1207 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1209 [Use libedit if available (default is YES)]),
1210 [case "$enableval" in
1211 yes) llvm_cv_enable_libedit="yes" ;;
1212 no) llvm_cv_enable_libedit="no" ;;
1213 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1215 llvm_cv_enable_libedit="yes")
1217 dnl --enable-libffi : check whether the user wants to turn off libffi:
1218 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1219 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1220 [case "$enableval" in
1221 yes) llvm_cv_enable_libffi="yes" ;;
1222 no) llvm_cv_enable_libffi="no" ;;
1223 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1225 llvm_cv_enable_libffi=no)
1227 AC_ARG_WITH(internal-prefix,
1228 AS_HELP_STRING([--with-internal-prefix],
1229 [Installation directory for internal files]),,
1231 AC_SUBST(INTERNAL_PREFIX,[$withval])
1233 dnl===-----------------------------------------------------------------------===
1235 dnl=== SECTION 4: Check for programs we need and that they are the right version
1237 dnl===-----------------------------------------------------------------------===
1239 dnl Check for the tools that the makefiles require
1242 AC_PATH_PROG(NM, [nm], [nm])
1243 AC_PATH_PROG(CMP, [cmp], [cmp])
1244 AC_PATH_PROG(CP, [cp], [cp])
1245 AC_PATH_PROG(DATE, [date], [date])
1246 AC_PATH_PROG(FIND, [find], [find])
1247 AC_PATH_PROG(GREP, [grep], [grep])
1248 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1249 AC_PATH_PROG(MV, [mv], [mv])
1251 AC_CHECK_TOOL(AR, ar, false)
1252 AC_PATH_PROG(RM, [rm], [rm])
1253 AC_PATH_PROG(SED, [sed], [sed])
1254 AC_PATH_PROG(TAR, [tar], [gtar])
1255 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1257 dnl Looking for misc. graph plotting software
1258 AC_PATH_PROG(DOT, [dot], [echo dot])
1259 if test "$DOT" != "echo dot" ; then
1260 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1261 dnl If we're targeting for mingw we should emit windows paths, not msys
1262 if test "$llvm_cv_os_type" = "MingW" ; then
1263 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1265 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1266 [Define to path to dot program if found or 'echo dot' otherwise])
1269 dnl Find the install program
1271 dnl Prepend src dir to install path dir if it's a relative path
1272 dnl This is a hack for installs that take place in something other
1273 dnl than the top level.
1275 [[\\/$]]* | ?:[[\\/]]* ) ;;
1276 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1279 dnl Checks for documentation and testing tools that we can do without. If these
1280 dnl are not found then they are set to "true" which always succeeds but does
1281 dnl nothing. This just lets the build output show that we could have done
1282 dnl something if the tool was available.
1283 AC_PATH_PROG(BZIP2, [bzip2])
1284 AC_PATH_PROG(CAT, [cat])
1285 AC_PATH_PROG(DOXYGEN, [doxygen])
1286 AC_PATH_PROG(GROFF, [groff])
1287 AC_PATH_PROG(GZIPBIN, [gzip])
1288 AC_PATH_PROG(PDFROFF, [pdfroff])
1289 AC_PATH_PROG(ZIP, [zip])
1290 AC_PATH_PROG(GO, [go])
1291 AC_PATH_PROGS(OCAMLC, [ocamlc])
1292 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1293 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1294 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1295 AC_PATH_PROGS(GAS, [gas as])
1297 dnl Get the version of the linker in use.
1300 dnl Determine whether the linker supports the -R option.
1303 dnl Determine whether the compiler supports the -rdynamic option.
1304 AC_LINK_EXPORT_DYNAMIC
1306 dnl Determine whether the linker supports the --version-script option.
1307 AC_LINK_VERSION_SCRIPT
1309 AC_CHECK_HEADERS([errno.h])
1311 case "$llvm_cv_os_type" in
1312 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1313 Darwin) llvm_shlib_ext=.dylib ;;
1314 *) llvm_shlib_ext=.so ;;
1317 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1319 AC_MSG_CHECKING([tool compatibility])
1321 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1322 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1323 dnl to support those options.
1324 dnl "icc" emits gcc signatures
1325 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1337 if test "$GCC" != "yes" && test "$ICC" != "yes"
1339 AC_MSG_ERROR([gcc|icc required but not found])
1342 dnl Ensure that compilation tools are compatible with GCC extensions
1343 if test "$GXX" != "yes" && test "$IXX" != "yes"
1345 AC_MSG_ERROR([g++|clang++|icc required but not found])
1348 dnl Verify that GCC is version 3.0 or higher
1349 if test "$GCC" = "yes"
1354 #if !defined(__GNUC__) || __GNUC__ < 3
1355 #error Unsupported GCC version
1359 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1362 dnl Check for GNU Make. We use its extensions, so don't build without it
1363 if test -z "$llvm_cv_gnu_make_command"
1365 AC_MSG_ERROR([GNU Make required but not found])
1368 dnl Tool compatibility is okay if we make it here.
1371 dnl Check optional compiler flags.
1372 AC_MSG_CHECKING([optional compiler flags])
1373 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1374 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1375 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1377 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1378 dnl false positives, so disable it.
1380 NO_MAYBE_UNINITIALIZED=
1381 if test "$GXX" = "yes"
1383 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1384 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1385 dnl known to be uninitialized from cases which might be uninitialized. We
1386 dnl still want to catch the first kind of errors.
1387 if test -z "$NO_MAYBE_UNINITIALIZED"
1389 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1392 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1394 AC_ARG_WITH([python],
1395 [AS_HELP_STRING([--with-python], [path to python])],
1396 [PYTHON="$withval"])
1398 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1399 AC_MSG_CHECKING([for python])
1400 AC_MSG_RESULT([user defined: $with_python])
1402 if test -n "$PYTHON" ; then
1403 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1406 AC_PATH_PROG([PYTHON], [python python2 python26],
1407 [AC_MSG_RESULT([not found])
1408 AC_MSG_ERROR([could not find python 2.5 or higher])])
1411 AC_MSG_CHECKING([for python >= 2.5])
1412 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1413 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1414 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1415 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1416 if test "$ac_python_version_major" -gt "2" || \
1417 (test "$ac_python_version_major" -eq "2" && \
1418 test "$ac_python_version_minor" -ge "5") ; then
1419 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1421 AC_MSG_RESULT([not found])
1422 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1425 dnl===-----------------------------------------------------------------------===
1427 dnl=== SECTION 5: Check for libraries
1429 dnl===-----------------------------------------------------------------------===
1432 if test "$llvm_cv_os_type" = "MingW" ; then
1433 AC_CHECK_LIB(imagehlp, main)
1434 AC_CHECK_LIB(psapi, main)
1435 AC_CHECK_LIB(shell32, main)
1438 dnl dlopen() is required for plugin support.
1439 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1440 [Define if dlopen() is available on this platform.]),
1441 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1443 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1444 dnl macros to detect whether clock_gettime is available, this just finds the
1445 dnl right libraries to link with.
1446 AC_SEARCH_LIBS(clock_gettime,rt)
1448 dnl The curses library is optional; used for querying terminal info
1449 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1450 dnl We need the has_color functionality in curses for it to be useful.
1451 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1452 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1453 [Define if the setupterm() function is supported this platform.]))
1456 dnl The libedit library is optional; used by lib/LineEditor
1457 if test "$llvm_cv_enable_libedit" = "yes" ; then
1458 AC_SEARCH_LIBS(el_init,edit,
1459 AC_DEFINE([HAVE_LIBEDIT],[1],
1460 [Define if libedit is available on this platform.]))
1463 dnl libffi is optional; used to call external functions from the interpreter
1464 if test "$llvm_cv_enable_libffi" = "yes" ; then
1465 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1466 [Define if libffi is available on this platform.]),
1467 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1470 dnl mallinfo is optional; the code can compile (minus features) without it
1471 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1472 [Define if mallinfo() is available on this platform.]))
1474 dnl pthread locking functions are optional - but llvm will not be thread-safe
1476 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1477 AC_CHECK_LIB(pthread, pthread_mutex_init)
1478 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1479 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1480 [Have pthread_mutex_lock]))
1481 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1482 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1483 [Have pthread_rwlock_init]))
1484 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1485 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1486 [Have pthread_getspecific]))
1489 dnl zlib is optional; used for compression/uncompression
1490 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1491 AC_CHECK_LIB(z, compress2)
1494 dnl Allow OProfile support for JIT output.
1495 AC_ARG_WITH(oprofile,
1496 AS_HELP_STRING([--with-oprofile=<prefix>],
1497 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1499 AC_SUBST(USE_OPROFILE, [1])
1501 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1503 AC_SUBST(USE_OPROFILE, [0]) ;;
1504 *) llvm_cv_oppath="${withval}/lib/oprofile"
1505 CPPFLAGS="-I${withval}/include";;
1507 case $llvm_cv_os_type in
1509 if test -n "$llvm_cv_oppath" ; then
1510 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1511 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1512 dnl libbfd is not included properly in libopagent in some Debian
1513 dnl versions. If libbfd isn't found at all, we assume opagent works
1515 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1516 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1517 echo "Error! You need to have libopagent around."
1520 AC_CHECK_HEADER([opagent.h], [], [
1521 echo "Error! You need to have opagent.h around."
1526 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1530 AC_SUBST(USE_OPROFILE, [0])
1532 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1533 [Define if we have the oprofile JIT-support library])
1535 dnl Enable support for Intel JIT Events API.
1536 AC_ARG_WITH(intel-jitevents,
1537 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1540 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1541 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1542 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1545 case $llvm_cv_os_type in
1546 Linux|Win32|Cygwin|MingW) ;;
1547 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1550 case "$llvm_cv_target_arch" in
1552 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1556 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1558 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1559 [Define if we have the Intel JIT API runtime support library])
1561 dnl Check for libxml2
1562 dnl Right now we're just checking for the existence, we could also check for a
1563 dnl particular version via --version on xml2-config
1564 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1566 AC_MSG_CHECKING(for libxml2 includes)
1567 if test "x$XML2CONFIG" = "x"; then
1568 AC_MSG_RESULT(xml2-config not found)
1570 LIBXML2_INC=`$XML2CONFIG --cflags`
1571 AC_MSG_RESULT($LIBXML2_INC)
1572 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1573 LIBXML2_LIBS="-lxml2"])
1575 AC_SUBST(LIBXML2_LIBS)
1576 AC_SUBST(LIBXML2_INC)
1578 dnl===-----------------------------------------------------------------------===
1580 dnl=== SECTION 6: Check for header files
1582 dnl===-----------------------------------------------------------------------===
1584 dnl First, use autoconf provided macros for specific headers that we need
1585 dnl We don't check for ancient stuff or things that are guaranteed to be there
1586 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1587 dnl Generally we're looking for POSIX headers.
1589 AC_HEADER_MMAP_ANONYMOUS
1595 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1596 AC_CHECK_HEADERS([cxxabi.h], [], [],
1597 [#include <stddef.h>
1601 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1602 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1603 AC_CHECK_HEADERS([utime.h])
1604 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1605 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1606 AC_CHECK_HEADERS([valgrind/valgrind.h])
1607 AC_CHECK_HEADERS([fenv.h])
1608 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1609 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1610 AC_CHECK_HEADERS(pthread.h,
1611 AC_SUBST(HAVE_PTHREAD, 1),
1612 AC_SUBST(HAVE_PTHREAD, 0))
1614 AC_SUBST(HAVE_PTHREAD, 0)
1616 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1617 AC_CHECK_HEADERS(zlib.h,
1618 AC_SUBST(HAVE_LIBZ, 1),
1619 AC_SUBST(HAVE_LIBZ, 0))
1621 AC_SUBST(HAVE_LIBZ, 0)
1624 dnl Try to find ffi.h.
1625 if test "$llvm_cv_enable_libffi" = "yes" ; then
1626 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1629 dnl Try to find Darwin specific crash reporting libraries.
1630 AC_CHECK_HEADERS([CrashReporterClient.h])
1632 dnl Try to find Darwin specific crash reporting global.
1633 AC_MSG_CHECKING([__crashreporter_info__])
1637 extern const char *__crashreporter_info__;
1639 __crashreporter_info__ = "test";
1645 AC_MSG_RESULT([yes])
1646 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1650 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1653 dnl===-----------------------------------------------------------------------===
1655 dnl=== SECTION 7: Check for types and structures
1657 dnl===-----------------------------------------------------------------------===
1662 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1664 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1665 AC_CHECK_TYPES([uint64_t],,
1666 AC_CHECK_TYPES([u_int64_t],,
1667 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1669 dnl===-----------------------------------------------------------------------===
1671 dnl=== SECTION 8: Check for specific functions needed
1673 dnl===-----------------------------------------------------------------------===
1675 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1676 AC_CHECK_FUNCS([powf fmodf strtof round ])
1677 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1678 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1679 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1680 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1681 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1682 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1683 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1684 AC_CHECK_FUNCS([futimes futimens])
1688 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1689 AC_CHECK_DECLS([arc4random])
1691 dnl Check the declaration "Secure API" on Windows environments.
1692 AC_CHECK_DECLS([strerror_s])
1694 dnl Check symbols in libgcc.a for JIT on Mingw.
1695 if test "$llvm_cv_os_type" = "MingW" ; then
1696 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1697 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1698 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1699 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1701 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1702 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1703 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1704 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1705 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1706 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1707 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1708 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1709 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1710 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1712 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1713 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1716 dnl Check Win32 API EnumerateLoadedModules.
1717 if test "$llvm_cv_os_type" = "MingW" ; then
1718 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1722 #include <windows.h>
1723 #include <imagehlp.h>
1724 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1725 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1729 AC_MSG_RESULT([yes])
1730 llvm_cv_win32_elmcb_pcstr="PCSTR"
1734 llvm_cv_win32_elmcb_pcstr="PSTR"
1736 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1739 dnl Check for variations in the Standard C++ library and STL. These macros are
1740 dnl provided by LLVM in the autoconf/m4 directory.
1744 dnl Check for mmap support.We also need to know if /dev/zero is required to
1745 dnl be opened for allocating RWX memory.
1746 dnl Make sure we aren't attempting to configure for an unknown system
1747 if test "$llvm_cv_platform_type" = "Unix" ; then
1750 AC_NEED_DEV_ZERO_FOR_MMAP
1752 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1754 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1756 if test "$ac_cv_func_mmap_file" = "no"
1758 AC_MSG_WARN([mmap() of files required but not found])
1762 dnl atomic builtins are required for threading support.
1763 AC_MSG_CHECKING(for GCC atomic builtins)
1764 dnl Since we'll be using these atomic builtins in C++ files we should test
1765 dnl the C++ compiler.
1771 volatile unsigned long val = 1;
1772 __sync_synchronize();
1773 __sync_val_compare_and_swap(&val, 1, 0);
1774 __sync_add_and_fetch(&val, 1);
1775 __sync_sub_and_fetch(&val, 1);
1781 AC_MSG_RESULT([yes])
1782 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1786 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1787 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1791 dnl===-----------------------------------------------------------------------===
1793 dnl=== SECTION 9: Additional checks, variables, etc.
1795 dnl===-----------------------------------------------------------------------===
1797 dnl Handle 32-bit linux systems running a 64-bit kernel.
1798 dnl This has to come after section 4 because it invokes the compiler.
1799 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1801 if test "$llvm_cv_linux_mixed" = "yes"; then
1802 llvm_cv_target_arch="x86"
1807 dnl Check whether __dso_handle is present
1808 AC_CHECK_FUNCS([__dso_handle])
1810 dnl Propagate the shared library extension that the libltdl checks did to
1811 dnl the Makefiles so we can use it there too
1812 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
1814 dnl Translate the various configuration directories and other basic
1815 dnl information into substitutions that will end up in Makefile.config.in
1816 dnl that these configured values can be used by the makefiles
1817 if test "${prefix}" = "NONE" ; then
1820 eval LLVM_PREFIX="${prefix}";
1821 eval LLVM_BINDIR="${prefix}/bin";
1822 eval LLVM_DATADIR="${prefix}/share/llvm";
1823 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1824 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1825 eval LLVM_INCLUDEDIR="${prefix}/include";
1826 eval LLVM_INFODIR="${prefix}/info";
1827 eval LLVM_MANDIR="${prefix}/man";
1828 LLVM_CONFIGTIME=`date`
1829 AC_SUBST(LLVM_PREFIX)
1830 AC_SUBST(LLVM_BINDIR)
1831 AC_SUBST(LLVM_DATADIR)
1832 AC_SUBST(LLVM_DOCSDIR)
1833 AC_SUBST(LLVM_ETCDIR)
1834 AC_SUBST(LLVM_INCLUDEDIR)
1835 AC_SUBST(LLVM_INFODIR)
1836 AC_SUBST(LLVM_MANDIR)
1837 AC_SUBST(LLVM_CONFIGTIME)
1839 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1840 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1841 LLVM_CONFIGTIME="(timestamp not enabled)"
1844 dnl Place the various directories into the config.h file as #defines so that we
1845 dnl can know about the installation paths within LLVM.
1846 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1847 [Installation prefix directory])
1848 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1849 [Installation directory for binary executables])
1850 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1851 [Installation directory for data files])
1852 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1853 [Installation directory for documentation])
1854 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1855 [Installation directory for config files])
1856 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1857 [Installation directory for include files])
1858 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1859 [Installation directory for .info files])
1860 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1861 [Installation directory for man pages])
1862 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1863 [Time at which LLVM was configured])
1864 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1865 [Host triple LLVM will be executed on])
1866 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1867 [Target triple LLVM will generate code for by default])
1869 dnl Determine which bindings to build.
1870 if test "$BINDINGS_TO_BUILD" = auto ; then
1871 BINDINGS_TO_BUILD=""
1872 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1873 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1875 if test "x$GO" != x ; then
1876 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1877 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
1881 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1883 dnl Do any work necessary to ensure that bindings have what they need.
1884 binding_prereqs_failed=0
1885 for a_binding in $BINDINGS_TO_BUILD ; do
1886 case "$a_binding" in
1888 if test "x$OCAMLC" = x ; then
1889 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1890 binding_prereqs_failed=1
1892 if test "x$OCAMLDEP" = x ; then
1893 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1894 binding_prereqs_failed=1
1896 if test "x$OCAMLOPT" = x ; then
1897 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1898 dnl ocamlopt is optional!
1900 if test "x$with_ocaml_libdir" != xauto ; then
1901 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1903 ocaml_stdlib="`"$OCAMLC" -where`"
1904 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1906 # ocaml stdlib is beneath our prefix; use stdlib
1907 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1909 # ocaml stdlib is outside our prefix; use libdir/ocaml
1910 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1915 if test "x$GO" = x ; then
1916 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
1917 binding_prereqs_failed=1
1919 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1922 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
1923 binding_prereqs_failed=1
1929 if test "$binding_prereqs_failed" = 1 ; then
1930 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1933 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1934 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1936 dnl Determine linker rpath flag
1937 if test "$llvm_cv_link_use_r" = "yes" ; then
1944 dnl Determine linker rdynamic flag
1945 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1946 RDYNAMIC="-rdynamic"
1952 dnl===-----------------------------------------------------------------------===
1954 dnl=== SECTION 10: Specify the output files and generate it
1956 dnl===-----------------------------------------------------------------------===
1958 dnl Configure header files
1959 dnl WARNING: dnl If you add or remove any of the following config headers, then
1960 dnl you MUST also update Makefile so that the variable FilesToConfig
1961 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1962 dnl files can be updated automatically when their *.in sources change.
1963 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1964 AH_TOP([#ifndef CONFIG_H
1968 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1969 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1970 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1971 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1972 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1974 dnl Configure the makefile's configuration data
1975 AC_CONFIG_FILES([Makefile.config])
1977 dnl Configure the RPM spec file for LLVM
1978 AC_CONFIG_FILES([llvm.spec])
1980 dnl Configure doxygen's configuration file
1981 AC_CONFIG_FILES([docs/doxygen.cfg])
1983 dnl Configure clang, if present
1984 if test "${clang_src_root}" = ""; then
1985 clang_src_root="$srcdir/tools/clang"
1987 if test -f ${clang_src_root}/README.txt; then
1988 dnl Use variables to stay under 80 columns.
1989 configh="include/clang/Config/config.h"
1990 doxy="docs/doxygen.cfg"
1991 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1992 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1995 dnl OCaml findlib META file
1996 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1998 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1999 test "x$program_prefix" = "xNONE" && program_prefix=""
2000 AC_SUBST([program_prefix])
2003 dnl Do special configuration of Makefiles
2004 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2005 AC_CONFIG_MAKEFILE(Makefile)
2006 AC_CONFIG_MAKEFILE(Makefile.common)
2007 AC_CONFIG_MAKEFILE(examples/Makefile)
2008 AC_CONFIG_MAKEFILE(lib/Makefile)
2009 AC_CONFIG_MAKEFILE(test/Makefile)
2010 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2011 AC_CONFIG_MAKEFILE(unittests/Makefile)
2012 AC_CONFIG_MAKEFILE(tools/Makefile)
2013 AC_CONFIG_MAKEFILE(utils/Makefile)
2014 AC_CONFIG_MAKEFILE(projects/Makefile)
2015 AC_CONFIG_MAKEFILE(bindings/Makefile)
2016 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2018 dnl Finally, crank out the output