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.
34 AC_INIT([LLVM],[3.5svn],[http://llvm.org/bugs/])
35 AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
36 AC_DEFINE([LLVM_VERSION_MINOR], [5], [Minor version of the LLVM API])
38 dnl Provide a copyright substitution and ensure the copyright notice is included
39 dnl in the output of --version option of the generated configure script.
40 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
41 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
43 dnl Indicate that we require autoconf 2.60 or later.
46 dnl Verify that the source directory is valid. This makes sure that we are
47 dnl configuring LLVM and not some other package (it validates --srcdir argument)
48 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
50 dnl Place all of the extra autoconf files into the config subdirectory. Tell
51 dnl various tools where the m4 autoconf macros are.
52 AC_CONFIG_AUX_DIR([autoconf])
54 dnl Quit if the source directory has already been configured.
55 dnl NOTE: This relies upon undocumented autoconf behavior.
56 if test ${srcdir} != "." ; then
57 if test -f ${srcdir}/include/llvm/Config/config.h ; then
58 AC_MSG_ERROR([Already configured in ${srcdir}])
62 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
63 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
67 dnl We need to check for the compiler up here to avoid anything else
68 dnl starting with a different one.
70 AC_PROG_CXX(clang++ g++)
73 dnl If CXX is Clang, check that it can find and parse C++ standard library
75 if test "$CXX" = "clang++" ; then
76 AC_MSG_CHECKING([whether clang works])
78 dnl Note that space between 'include' and '(' is required. There's a broken
79 dnl regex in aclocal that otherwise will think that we call m4's include
81 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
82 #if __has_include (<cxxabi.h>)
85 #if __has_include (<unwind.h>)
94 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
99 dnl Set up variables that track whether the host compiler is GCC or Clang where
100 dnl we can effectively sanity check them. We don't try to sanity check all the
101 dnl other possible compilers.
102 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
104 llvm_cv_cxx_compiler=unknown
105 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
109 llvm_cv_cxx_compiler=clang,
110 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
114 llvm_cv_cxx_compiler=gcc, [])])
116 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
118 dnl Configure all of the projects present in our source tree. While we could
119 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
120 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
121 dnl Instead we match on the known projects.
124 dnl One tricky part of doing this is that some projects depend upon other
125 dnl projects. For example, several projects rely upon the LLVM test suite.
126 dnl We want to configure those projects first so that their object trees are
127 dnl created before running the configure scripts of projects that depend upon
131 dnl Several projects use the LLVM test suite, so configure it next.
132 if test -d ${srcdir}/projects/test-suite ; then
133 AC_CONFIG_SUBDIRS([projects/test-suite])
136 dnl llvm-test is the old name of the test-suite, kept here for backwards
138 if test -d ${srcdir}/projects/llvm-test ; then
139 AC_CONFIG_SUBDIRS([projects/llvm-test])
142 dnl Some projects use poolalloc; configure that next
143 if test -d ${srcdir}/projects/poolalloc ; then
144 AC_CONFIG_SUBDIRS([projects/poolalloc])
147 if test -d ${srcdir}/projects/llvm-poolalloc ; then
148 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
151 dnl Check for all other projects
152 for i in `ls ${srcdir}/projects`
154 if test -d ${srcdir}/projects/${i} ; then
156 sample) AC_CONFIG_SUBDIRS([projects/sample]) ;;
157 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
164 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
170 dnl Disable the build of polly, even if it is checked out into tools/polly.
172 AS_HELP_STRING([--enable-polly],
173 [Use polly if available (default is YES)]),,
176 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
177 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
178 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
179 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
183 dnl Check if polly is checked out into tools/polly and configure it if
185 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
186 AC_SUBST(LLVM_HAS_POLLY,1)
187 AC_CONFIG_SUBDIRS([tools/polly])
190 dnl===-----------------------------------------------------------------------===
192 dnl=== SECTION 2: Architecture, target, and host checks
194 dnl===-----------------------------------------------------------------------===
196 dnl Check the target for which we're compiling and the host that will do the
197 dnl compilations. This will tell us which LLVM compiler will be used for
198 dnl compiling SSA into object code. This needs to be done early because
199 dnl following tests depend on it.
202 dnl Determine the platform type and cache its value. This helps us configure
203 dnl the System library to the correct build platform.
204 AC_CACHE_CHECK([type of operating system we're going to host on],
208 llvm_cv_link_all_option="-Wl,--whole-archive"
209 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
210 llvm_cv_os_type="AIX"
211 llvm_cv_platform_type="Unix" ;;
213 llvm_cv_link_all_option="-Wl,--whole-archive"
214 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
215 llvm_cv_os_type="IRIX"
216 llvm_cv_platform_type="Unix" ;;
218 llvm_cv_link_all_option="-Wl,--whole-archive"
219 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
220 llvm_cv_os_type="Cygwin"
221 llvm_cv_platform_type="Unix" ;;
223 llvm_cv_link_all_option="-Wl,-all_load"
224 llvm_cv_no_link_all_option="-Wl,-noall_load"
225 llvm_cv_os_type="Darwin"
226 llvm_cv_platform_type="Unix" ;;
228 llvm_cv_link_all_option="-Wl,-all_load"
229 llvm_cv_no_link_all_option="-Wl,-noall_load"
230 llvm_cv_os_type="Minix"
231 llvm_cv_platform_type="Unix" ;;
233 llvm_cv_link_all_option="-Wl,--whole-archive"
234 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
235 llvm_cv_os_type="FreeBSD"
236 llvm_cv_platform_type="Unix" ;;
238 llvm_cv_link_all_option="-Wl,--whole-archive"
239 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
240 llvm_cv_os_type="GNU/kFreeBSD"
241 llvm_cv_platform_type="Unix" ;;
243 llvm_cv_link_all_option="-Wl,--whole-archive"
244 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
245 llvm_cv_os_type="OpenBSD"
246 llvm_cv_platform_type="Unix" ;;
248 llvm_cv_link_all_option="-Wl,--whole-archive"
249 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
250 llvm_cv_os_type="NetBSD"
251 llvm_cv_platform_type="Unix" ;;
253 llvm_cv_link_all_option="-Wl,--whole-archive"
254 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
255 llvm_cv_os_type="DragonFly"
256 llvm_cv_platform_type="Unix" ;;
258 llvm_cv_link_all_option="-Wl,--whole-archive"
259 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
260 llvm_cv_os_type="HP-UX"
261 llvm_cv_platform_type="Unix" ;;
263 llvm_cv_link_all_option="-Wl,--whole-archive"
264 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
265 llvm_cv_os_type="Interix"
266 llvm_cv_platform_type="Unix" ;;
268 llvm_cv_link_all_option="-Wl,--whole-archive"
269 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
270 llvm_cv_os_type="Linux"
271 llvm_cv_platform_type="Unix" ;;
273 llvm_cv_link_all_option="-Wl,--whole-archive"
274 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
275 llvm_cv_os_type="GNU"
276 llvm_cv_platform_type="Unix" ;;
278 llvm_cv_link_all_option="-Wl,-z,allextract"
279 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
280 llvm_cv_os_type="SunOS"
281 llvm_cv_platform_type="Unix" ;;
283 llvm_cv_link_all_option="-Wl,-z,allextract"
284 llvm_cv_link_all_option="-Wl,-z,defaultextract"
285 llvm_cv_os_type="AuroraUX"
286 llvm_cv_platform_type="Unix" ;;
288 llvm_cv_link_all_option="-Wl,--whole-archive"
289 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
290 llvm_cv_os_type="Win32"
291 llvm_cv_platform_type="Win32" ;;
293 llvm_cv_link_all_option="-Wl,--whole-archive"
294 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
295 llvm_cv_os_type="MingW"
296 llvm_cv_platform_type="Win32" ;;
298 llvm_cv_link_all_option="-Wl,--whole-archive"
299 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
300 llvm_cv_os_type="Haiku"
301 llvm_cv_platform_type="Unix" ;;
303 llvm_cv_link_all_option="-Wl,--whole-archive"
304 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
305 llvm_cv_os_type="Freestanding"
306 llvm_cv_platform_type="Unix" ;;
308 llvm_cv_link_all_option="-Wl,--whole-archive"
309 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
310 llvm_cv_os_type="Freestanding"
311 llvm_cv_platform_type="Unix" ;;
313 llvm_cv_link_all_option=""
314 llvm_cv_no_link_all_option=""
315 llvm_cv_os_type="Unknown"
316 llvm_cv_platform_type="Unknown" ;;
319 AC_CACHE_CHECK([type of operating system we're going to target],
320 [llvm_cv_target_os_type],
323 llvm_cv_target_os_type="AIX" ;;
325 llvm_cv_target_os_type="IRIX" ;;
327 llvm_cv_target_os_type="Cygwin" ;;
329 llvm_cv_target_os_type="Darwin" ;;
331 llvm_cv_target_os_type="Minix" ;;
333 llvm_cv_target_os_type="FreeBSD" ;;
335 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
337 llvm_cv_target_os_type="OpenBSD" ;;
339 llvm_cv_target_os_type="NetBSD" ;;
341 llvm_cv_target_os_type="DragonFly" ;;
343 llvm_cv_target_os_type="HP-UX" ;;
345 llvm_cv_target_os_type="Interix" ;;
347 llvm_cv_target_os_type="Linux" ;;
349 llvm_cv_target_os_type="GNU" ;;
351 llvm_cv_target_os_type="SunOS" ;;
353 llvm_cv_target_os_type="AuroraUX" ;;
355 llvm_cv_target_os_type="Win32" ;;
357 llvm_cv_target_os_type="MingW" ;;
359 llvm_cv_target_os_type="Haiku" ;;
361 llvm_cv_target_os_type="RTEMS" ;;
363 llvm_cv_target_os_type="NativeClient" ;;
365 llvm_cv_target_os_type="Freestanding" ;;
367 llvm_cv_target_os_type="Unknown" ;;
370 dnl Make sure we aren't attempting to configure for an unknown system
371 if test "$llvm_cv_os_type" = "Unknown" ; then
372 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
375 dnl Set the "OS" Makefile variable based on the platform type so the
376 dnl makefile can configure itself to specific build hosts
377 AC_SUBST(OS,$llvm_cv_os_type)
378 AC_SUBST(HOST_OS,$llvm_cv_os_type)
379 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
381 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
382 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
383 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
385 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
386 dnl This is used by lib/Support to determine the basic kind of implementation
388 case $llvm_cv_platform_type in
390 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
391 AC_SUBST(LLVM_ON_UNIX,[1])
392 AC_SUBST(LLVM_ON_WIN32,[0])
395 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
396 AC_SUBST(LLVM_ON_UNIX,[0])
397 AC_SUBST(LLVM_ON_WIN32,[1])
401 dnl Determine what our target architecture is and configure accordingly.
402 dnl This will allow Makefiles to make a distinction between the hardware and
404 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
406 i?86-*) llvm_cv_target_arch="x86" ;;
407 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
408 sparc*-*) llvm_cv_target_arch="Sparc" ;;
409 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
410 arm*-*) llvm_cv_target_arch="ARM" ;;
411 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
412 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
413 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
414 xcore-*) llvm_cv_target_arch="XCore" ;;
415 msp430-*) llvm_cv_target_arch="MSP430" ;;
416 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
417 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
418 s390x-*) llvm_cv_target_arch="SystemZ" ;;
419 *) llvm_cv_target_arch="Unknown" ;;
422 if test "$llvm_cv_target_arch" = "Unknown" ; then
423 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
426 dnl Determine the LLVM native architecture for the target
427 case "$llvm_cv_target_arch" in
428 x86) LLVM_NATIVE_ARCH="X86" ;;
429 x86_64) LLVM_NATIVE_ARCH="X86" ;;
430 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
433 dnl Define a substitution, ARCH, for the target architecture
434 AC_SUBST(ARCH,$llvm_cv_target_arch)
436 dnl Determine what our host architecture.
437 dnl This will allow MCJIT regress tests runs only for supported
440 i?86-*) host_arch="x86" ;;
441 amd64-* | x86_64-*) host_arch="x86_64" ;;
442 sparc*-*) host_arch="Sparc" ;;
443 powerpc*-*) host_arch="PowerPC" ;;
444 arm*-*) host_arch="ARM" ;;
445 aarch64*-*) host_arch="AArch64" ;;
446 mips-* | mips64-*) host_arch="Mips" ;;
447 mipsel-* | mips64el-*) host_arch="Mips" ;;
448 xcore-*) host_arch="XCore" ;;
449 msp430-*) host_arch="MSP430" ;;
450 hexagon-*) host_arch="Hexagon" ;;
451 s390x-*) host_arch="SystemZ" ;;
452 *) host_arch="Unknown" ;;
455 if test "$host_arch" = "Unknown" ; then
456 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
459 AC_SUBST(HOST_ARCH,$host_arch)
461 dnl Check for build platform executable suffix if we're cross-compiling
462 if test "$cross_compiling" = yes; then
463 AC_SUBST(LLVM_CROSS_COMPILING, [1])
465 ac_build_prefix=${build_alias}-
466 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
467 if test -z "$BUILD_CXX"; then
468 AC_CHECK_PROG(BUILD_CXX, g++, g++)
469 if test -z "$BUILD_CXX"; then
470 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
474 AC_SUBST(LLVM_CROSS_COMPILING, [0])
477 dnl Check to see if there's a .svn or .git directory indicating that this
478 dnl build is being done from a checkout. This sets up several defaults for
479 dnl the command line switches. When we build with a checkout directory,
480 dnl we get a debug with assertions turned on. Without, we assume a source
481 dnl release and we get an optimized build without assertions.
482 dnl See --enable-optimized and --enable-assertions below
483 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
486 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
492 dnl===-----------------------------------------------------------------------===
494 dnl=== SECTION 3: Command line arguments for the configure script.
496 dnl===-----------------------------------------------------------------------===
498 dnl --enable-libcpp : check whether or not to use libc++ on the command line
499 AC_ARG_ENABLE(libcpp,
500 AS_HELP_STRING([--enable-libcpp],
501 [Use libc++ if available (default is NO)]),,
504 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
505 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
506 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
507 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
510 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
511 dnl be bypassed by passing a flag if necessary on a platform. We have to do
512 dnl these checks here so that we have the configuration of the standard C++
513 dnl library finished.
514 AC_ARG_ENABLE(compiler-version-checks,
515 AS_HELP_STRING([--enable-compiler-version-checks],
516 [Check the version of the host compiler (default is YES)]),,
523 case "$llvm_cv_cxx_compiler" in
525 AC_MSG_CHECKING([whether Clang is new enough])
526 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
527 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
528 #error This version of Clang is too old to build LLVM
531 [AC_MSG_RESULT([yes])],
534 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
535 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
536 bypass these sanity checks.])])
538 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
539 dnl are sometimes deeply confusing though. Here we test for an obvious
540 dnl incomplete feature in 4.6's standard library that was completed in
541 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
542 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
543 dnl that happening in the Makefile.
544 if test "$ENABLE_LIBCPP" -eq 0 ; then
545 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
546 llvm_cv_old_cxxflags="$CXXFLAGS"
547 CXXFLAGS="$CXXFLAGS -std=c++0x"
548 AC_LINK_IFELSE([AC_LANG_SOURCE([[
550 std::atomic<float> x(0.0f);
551 int main() { return (float)x; }
553 [AC_MSG_RESULT([yes])],
556 We detected a missing feature in the standard C++ library that was known to be
557 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
558 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
559 than 4.7. You will need to update your system and ensure Clang uses the newer
562 If this error is incorrect or you need to force things to work, you may pass
563 '--disable-compiler-version-checks' to configure to bypass this test.])])
564 CXXFLAGS="$llvm_cv_old_cxxflags"
568 AC_MSG_CHECKING([whether GCC is new enough])
569 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
570 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
571 #error This version of GCC is too old to build LLVM
574 [AC_MSG_RESULT([yes])],
577 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
578 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
579 bypass these sanity checks.])])
587 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
591 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
593 AS_HELP_STRING([--enable-cxx11],
594 [Use c++11 if available (default is NO)]),,
597 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
598 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
599 default) AC_SUBST(ENABLE_CXX11,[0]);;
600 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
603 dnl --enable-fission : check whether or not to use -gsplit-dwarf on the command
605 AC_ARG_ENABLE(split-dwarf,
606 AS_HELP_STRING([--enable-split-dwarf],
607 [Use split-dwarf if available (default is NO)]),,
610 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
611 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
612 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
613 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
616 dnl --enable-clang-arcmt: check whether to enable clang arcmt
618 AC_ARG_ENABLE(clang-arcmt,
619 AS_HELP_STRING([--enable-clang-arcmt],
620 [Enable building of clang ARCMT (default is YES)]),
621 clang_arcmt="$enableval",
624 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
625 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
626 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
627 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
630 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
631 clang_static_analyzer="yes"
632 AC_ARG_ENABLE(clang-static-analyzer,
633 AS_HELP_STRING([--enable-clang-static-analyzer],
634 [Enable building of clang Static Analyzer (default is YES)]),
635 clang_static_analyzer="$enableval",
638 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
640 if test ${clang_arcmt} != "no" ; then
641 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
643 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
645 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
646 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
649 dnl --enable-clang-rewriter: check whether to enable clang rewriter
650 AC_ARG_ENABLE(clang-rewriter,
651 AS_HELP_STRING([--enable-clang-rewriter],
652 [Enable building of clang rewriter (default is YES)]),,
655 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
657 if test ${clang_arcmt} != "no" ; then
658 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
660 if test ${clang_static_analyzer} != "no" ; then
661 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
663 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
665 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
666 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
669 dnl --enable-optimized : check whether they want to do an optimized build:
670 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
671 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
672 if test ${enableval} = "no" ; then
673 AC_SUBST(ENABLE_OPTIMIZED,[[]])
675 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
678 dnl --enable-profiling : check whether they want to do a profile build:
679 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
680 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
681 if test ${enableval} = "no" ; then
682 AC_SUBST(ENABLE_PROFILING,[[]])
684 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
687 dnl --enable-assertions : check whether they want to turn on assertions or not:
688 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
689 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
690 if test ${enableval} = "yes" ; then
691 AC_SUBST(DISABLE_ASSERTIONS,[[]])
693 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
696 dnl --enable-werror : check whether we want Werror on by default
697 AC_ARG_ENABLE(werror,AS_HELP_STRING(
698 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
700 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
701 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
702 default) AC_SUBST(ENABLE_WERROR,[0]);;
703 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
706 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
707 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
708 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
709 if test ${enableval} = "yes" ; then
710 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
711 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
713 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
714 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
717 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
718 AC_ARG_ENABLE(debug-runtime,
719 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
720 if test ${enableval} = "no" ; then
721 AC_SUBST(DEBUG_RUNTIME,[[]])
723 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
726 dnl --enable-debug-symbols : should even optimized compiler libraries
727 dnl have debug symbols?
728 AC_ARG_ENABLE(debug-symbols,
729 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)
730 if test ${enableval} = "no" ; then
731 AC_SUBST(DEBUG_SYMBOLS,[[]])
733 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
736 dnl --enable-keep-symbols : do not strip installed executables
737 AC_ARG_ENABLE(keep-symbols,
738 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
739 if test ${enableval} = "no" ; then
740 AC_SUBST(KEEP_SYMBOLS,[[]])
742 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
745 dnl --enable-jit: check whether they want to enable the jit
747 AS_HELP_STRING(--enable-jit,
748 [Enable Just In Time Compiling (default is YES)]),,
750 if test ${enableval} = "no"
754 case "$llvm_cv_target_arch" in
755 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
756 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
757 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
758 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
759 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
760 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
761 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
762 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
763 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
764 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
765 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
766 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
767 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
771 dnl Allow enablement of building and installing docs
773 AS_HELP_STRING([--enable-docs],
774 [Build documents (default is YES)]),,
777 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
778 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
779 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
780 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
783 dnl Allow enablement of doxygen generated documentation
784 AC_ARG_ENABLE(doxygen,
785 AS_HELP_STRING([--enable-doxygen],
786 [Build doxygen documentation (default is NO)]),,
789 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
790 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
791 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
792 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
795 dnl Allow disablement of threads
796 AC_ARG_ENABLE(threads,
797 AS_HELP_STRING([--enable-threads],
798 [Use threads if available (default is YES)]),,
801 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
802 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
803 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
804 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
806 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
807 [Define if threads enabled])
809 dnl Allow disablement of pthread.h
810 AC_ARG_ENABLE(pthreads,
811 AS_HELP_STRING([--enable-pthreads],
812 [Use pthreads if available (default is YES)]),,
815 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
816 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
817 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
818 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
821 dnl Allow disablement of zlib
823 AS_HELP_STRING([--enable-zlib],
824 [Use zlib for compression/decompression if
825 available (default is YES)]),,
828 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
829 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
830 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
831 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
833 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
834 [Define if zlib is enabled])
836 dnl Allow building without position independent code
838 AS_HELP_STRING([--enable-pic],
839 [Build LLVM with Position Independent Code (default is YES)]),,
842 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
843 no) AC_SUBST(ENABLE_PIC,[0]) ;;
844 default) AC_SUBST(ENABLE_PIC,[1]) ;;
845 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
847 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
848 [Define if position independent code is enabled])
850 dnl Allow building a shared library and linking tools against it.
851 AC_ARG_ENABLE(shared,
852 AS_HELP_STRING([--enable-shared],
853 [Build a shared library and link tools against it (default is NO)]),,
856 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
857 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
858 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
859 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
862 dnl Allow libstdc++ is embedded in LLVM.dll.
863 AC_ARG_ENABLE(embed-stdcxx,
864 AS_HELP_STRING([--enable-embed-stdcxx],
865 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
868 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
869 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
870 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
871 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
874 dnl Enable embedding timestamp information into build.
875 AC_ARG_ENABLE(timestamps,
876 AS_HELP_STRING([--enable-timestamps],
877 [Enable embedding timestamp information in build (default is YES)]),,
880 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
881 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
882 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
883 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
885 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
886 [Define if timestamp information (e.g., __DATE__) is allowed])
888 dnl Enable support for showing backtraces.
889 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
890 [--enable-backtraces],
891 [Enable embedding backtraces on crash (default is YES)]),
892 [case "$enableval" in
893 yes) llvm_cv_enable_backtraces="yes" ;;
894 no) llvm_cv_enable_backtraces="no" ;;
895 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
897 llvm_cv_enable_backtraces="yes")
898 if test "$llvm_cv_enable_backtraces" = "yes" ; then
899 AC_DEFINE([ENABLE_BACKTRACES],[1],
900 [Define if you want backtraces on crash])
903 dnl Enable installing platform specific signal handling overrides, for improved
904 dnl CrashRecovery support or interaction with crash reporting software. This
905 dnl support may be inappropriate for some clients embedding LLVM as a library.
906 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
907 [--enable-crash-overrides],
908 [Enable crash handling overrides (default is YES)]),
909 [case "$enableval" in
910 yes) llvm_cv_enable_crash_overrides="yes" ;;
911 no) llvm_cv_enable_crash_overrides="no" ;;
912 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
914 llvm_cv_enable_crash_overrides="yes")
915 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
916 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
917 [Define to enable crash handling overrides])
920 dnl Allow specific targets to be specified for building (or not)
922 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
923 [Build specific host targets: all or target1,target2,... Valid targets are:
924 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
925 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
927 if test "$enableval" = host-only ; then
931 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" ;;
932 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
934 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
935 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
936 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
937 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
938 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
939 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
940 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
941 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
942 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
943 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
944 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
945 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
946 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
947 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
948 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
949 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
950 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
951 host) case "$llvm_cv_target_arch" in
952 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
953 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
954 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
955 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
956 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
957 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
958 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
959 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
960 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
961 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
962 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
963 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
964 *) AC_MSG_ERROR([Can not set target to build]) ;;
966 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
972 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
973 [Build experimental host targets: disable or target1,target2,...
974 (default=disable)]),,
977 if test ${enableval} != "disable"
979 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
982 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
984 dnl Determine whether we are building LLVM support for the native architecture.
985 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
986 for a_target in $TARGETS_TO_BUILD; do
987 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
988 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
989 [LLVM architecture name for the native architecture, if available])
990 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
991 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
992 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
993 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
994 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
995 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
997 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
998 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1000 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1001 [LLVM name for the native Target init function, if available])
1002 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1003 [LLVM name for the native TargetInfo init function, if available])
1004 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1005 [LLVM name for the native target MC init function, if available])
1006 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1007 [LLVM name for the native AsmPrinter init function, if available])
1008 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1009 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1010 [LLVM name for the native AsmParser init function, if available])
1012 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1013 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1014 [LLVM name for the native Disassembler init function, if available])
1019 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1020 dnl target feature def files.
1021 LLVM_ENUM_TARGETS=""
1022 LLVM_ENUM_ASM_PRINTERS=""
1023 LLVM_ENUM_ASM_PARSERS=""
1024 LLVM_ENUM_DISASSEMBLERS=""
1025 for target_to_build in $TARGETS_TO_BUILD; do
1026 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1027 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1028 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1030 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1031 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1033 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1034 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1037 AC_SUBST(LLVM_ENUM_TARGETS)
1038 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1039 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1040 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1042 dnl Override the option to use for optimized builds.
1043 AC_ARG_WITH(optimize-option,
1044 AS_HELP_STRING([--with-optimize-option],
1045 [Select the compiler options to use for optimized builds]),,
1047 AC_MSG_CHECKING([optimization flags])
1050 case "$llvm_cv_os_type" in
1051 FreeBSD) optimize_option=-O2 ;;
1052 MingW) optimize_option=-O2 ;;
1053 *) optimize_option=-O3 ;;
1055 *) optimize_option="$withval" ;;
1057 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1058 AC_MSG_RESULT([$optimize_option])
1060 dnl Specify extra build options
1061 AC_ARG_WITH(extra-options,
1062 AS_HELP_STRING([--with-extra-options],
1063 [Specify additional options to compile LLVM with]),,
1066 default) EXTRA_OPTIONS= ;;
1067 *) EXTRA_OPTIONS=$withval ;;
1069 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1071 dnl Specify extra linker build options
1072 AC_ARG_WITH(extra-ld-options,
1073 AS_HELP_STRING([--with-extra-ld-options],
1074 [Specify additional options to link LLVM with]),,
1077 default) EXTRA_LD_OPTIONS= ;;
1078 *) EXTRA_LD_OPTIONS=$withval ;;
1080 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1082 dnl Allow specific bindings to be specified for building (or not)
1083 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1084 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1086 BINDINGS_TO_BUILD=""
1087 case "$enableval" in
1088 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1089 all ) BINDINGS_TO_BUILD="ocaml" ;;
1090 none | no) BINDINGS_TO_BUILD="" ;;
1091 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1092 case "$a_binding" in
1093 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1094 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1100 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1101 dnl script for bindings/ocaml/configure, except that its auto value depends on
1102 dnl OCAMLC, which is found here to support tests.
1103 AC_ARG_WITH([ocaml-libdir],
1104 [AS_HELP_STRING([--with-ocaml-libdir],
1105 [Specify install location for ocaml bindings (default is stdlib)])],
1109 auto) with_ocaml_libdir="$withval" ;;
1110 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1111 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1114 AC_ARG_WITH(clang-srcdir,
1115 AS_HELP_STRING([--with-clang-srcdir],
1116 [Directory to the out-of-tree Clang source]),,
1119 -) clang_src_root="" ;;
1120 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1121 *) clang_src_root="$ac_pwd/$withval" ;;
1123 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1125 AC_ARG_WITH(clang-resource-dir,
1126 AS_HELP_STRING([--with-clang-resource-dir],
1127 [Relative directory from the Clang binary for resource files]),,
1129 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1130 [Relative directory for resource files])
1132 AC_ARG_WITH(c-include-dirs,
1133 AS_HELP_STRING([--with-c-include-dirs],
1134 [Colon separated list of directories clang will search for headers]),,
1136 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1137 [Directories clang will search for headers])
1139 # Clang normally uses the system c++ headers and libraries. With this option,
1140 # clang will use the ones provided by a gcc installation instead. This option should
1141 # be passed the same value that was used with --prefix when configuring gcc.
1142 AC_ARG_WITH(gcc-toolchain,
1143 AS_HELP_STRING([--with-gcc-toolchain],
1144 [Directory where gcc is installed.]),,
1146 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1147 [Directory where gcc is installed.])
1149 AC_ARG_WITH(default-sysroot,
1150 AS_HELP_STRING([--with-default-sysroot],
1151 [Add --sysroot=<path> to all compiler invocations.]),,
1153 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1154 [Default <path> to all compiler invocations for --sysroot=<path>.])
1156 dnl Allow linking of LLVM with GPLv3 binutils code.
1157 AC_ARG_WITH(binutils-include,
1158 AS_HELP_STRING([--with-binutils-include],
1159 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1162 default) WITH_BINUTILS_INCDIR=default ;;
1163 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1164 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1166 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1167 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1168 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1169 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1170 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1174 dnl Specify the URL where bug reports should be submitted.
1175 AC_ARG_WITH(bug-report-url,
1176 AS_HELP_STRING([--with-bug-report-url],
1177 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1178 withval="http://llvm.org/bugs/")
1179 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1182 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1183 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1184 [--enable-terminfo],
1185 [Query the terminfo database if available (default is YES)]),
1186 [case "$enableval" in
1187 yes) llvm_cv_enable_terminfo="yes" ;;
1188 no) llvm_cv_enable_terminfo="no" ;;
1189 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1191 llvm_cv_enable_terminfo="yes")
1193 dnl --enable-libffi : check whether the user wants to turn off libffi:
1194 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1195 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1196 [case "$enableval" in
1197 yes) llvm_cv_enable_libffi="yes" ;;
1198 no) llvm_cv_enable_libffi="no" ;;
1199 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1201 llvm_cv_enable_libffi=no)
1203 AC_ARG_WITH(internal-prefix,
1204 AS_HELP_STRING([--with-internal-prefix],
1205 [Installation directory for internal files]),,
1207 AC_SUBST(INTERNAL_PREFIX,[$withval])
1209 dnl===-----------------------------------------------------------------------===
1211 dnl=== SECTION 4: Check for programs we need and that they are the right version
1213 dnl===-----------------------------------------------------------------------===
1218 dnl Check for the tools that the makefiles require
1221 AC_PATH_PROG(CMP, [cmp], [cmp])
1222 AC_PATH_PROG(CP, [cp], [cp])
1223 AC_PATH_PROG(DATE, [date], [date])
1224 AC_PATH_PROG(FIND, [find], [find])
1225 AC_PATH_PROG(GREP, [grep], [grep])
1226 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1227 AC_PATH_PROG(MV, [mv], [mv])
1229 AC_CHECK_TOOL(AR, ar, false)
1230 AC_PATH_PROG(RM, [rm], [rm])
1231 AC_PATH_PROG(SED, [sed], [sed])
1232 AC_PATH_PROG(TAR, [tar], [gtar])
1233 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1235 dnl Looking for misc. graph plotting software
1236 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1237 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1238 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1239 dnl If we're targeting for mingw we should emit windows paths, not msys
1240 if test "$llvm_cv_os_type" = "MingW" ; then
1241 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1243 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1244 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1246 AC_PATH_PROG(DOT, [dot], [echo dot])
1247 if test "$DOT" != "echo dot" ; then
1248 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1249 dnl If we're targeting for mingw we should emit windows paths, not msys
1250 if test "$llvm_cv_os_type" = "MingW" ; then
1251 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1253 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1254 [Define to path to dot program if found or 'echo dot' otherwise])
1256 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1257 if test "$FDP" != "echo fdp" ; then
1258 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1259 dnl If we're targeting for mingw we should emit windows paths, not msys
1260 if test "$llvm_cv_os_type" = "MingW" ; then
1261 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1263 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1264 [Define to path to fdp program if found or 'echo fdp' otherwise])
1266 AC_PATH_PROG(NEATO, [neato], [echo neato])
1267 if test "$NEATO" != "echo neato" ; then
1268 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1269 dnl If we're targeting for mingw we should emit windows paths, not msys
1270 if test "$llvm_cv_os_type" = "MingW" ; then
1271 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1273 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1274 [Define to path to neato program if found or 'echo neato' otherwise])
1276 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1277 if test "$TWOPI" != "echo twopi" ; then
1278 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1279 dnl If we're targeting for mingw we should emit windows paths, not msys
1280 if test "$llvm_cv_os_type" = "MingW" ; then
1281 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1283 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1284 [Define to path to twopi program if found or 'echo twopi' otherwise])
1286 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1287 if test "$CIRCO" != "echo circo" ; then
1288 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1289 dnl If we're targeting for mingw we should emit windows paths, not msys
1290 if test "$llvm_cv_os_type" = "MingW" ; then
1291 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1293 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1294 [Define to path to circo program if found or 'echo circo' otherwise])
1296 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1297 if test "$GV" != "echo gv" ; then
1298 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1299 dnl If we're targeting for mingw we should emit windows paths, not msys
1300 if test "$llvm_cv_os_type" = "MingW" ; then
1301 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1303 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1304 [Define to path to gv program if found or 'echo gv' otherwise])
1306 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1307 if test "$DOTTY" != "echo dotty" ; then
1308 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1309 dnl If we're targeting for mingw we should emit windows paths, not msys
1310 if test "$llvm_cv_os_type" = "MingW" ; then
1311 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1313 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1314 [Define to path to dotty program if found or 'echo dotty' otherwise])
1316 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1317 if test "$XDOT" != "echo xdot" ; then
1318 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1319 dnl If we're targeting for mingw we should emit windows paths, not msys
1320 if test "$llvm_cv_os_type" = "MingW" ; then
1321 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1323 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1324 [Define to path to xdot program if found or 'echo xdot' otherwise])
1327 dnl Find the install program
1329 dnl Prepend src dir to install path dir if it's a relative path
1330 dnl This is a hack for installs that take place in something other
1331 dnl than the top level.
1333 [[\\/$]]* | ?:[[\\/]]* ) ;;
1334 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1337 dnl Checks for documentation and testing tools that we can do without. If these
1338 dnl are not found then they are set to "true" which always succeeds but does
1339 dnl nothing. This just lets the build output show that we could have done
1340 dnl something if the tool was available.
1341 AC_PATH_PROG(BZIP2, [bzip2])
1342 AC_PATH_PROG(CAT, [cat])
1343 AC_PATH_PROG(DOXYGEN, [doxygen])
1344 AC_PATH_PROG(GROFF, [groff])
1345 AC_PATH_PROG(GZIPBIN, [gzip])
1346 AC_PATH_PROG(PDFROFF, [pdfroff])
1347 AC_PATH_PROG(ZIP, [zip])
1348 AC_PATH_PROGS(OCAMLC, [ocamlc])
1349 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1350 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1351 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1352 AC_PATH_PROGS(GAS, [gas as])
1354 dnl Get the version of the linker in use.
1357 dnl Determine whether the linker supports the -R option.
1360 dnl Determine whether the compiler supports the -rdynamic option.
1361 AC_LINK_EXPORT_DYNAMIC
1363 dnl Determine whether the linker supports the --version-script option.
1364 AC_LINK_VERSION_SCRIPT
1366 dnl Check for libtool and the library that has dlopen function (which must come
1367 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1372 AC_MSG_CHECKING([tool compatibility])
1374 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1375 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1376 dnl to support those options.
1377 dnl "icc" emits gcc signatures
1378 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1390 if test "$GCC" != "yes" && test "$ICC" != "yes"
1392 AC_MSG_ERROR([gcc|icc required but not found])
1395 dnl Ensure that compilation tools are compatible with GCC extensions
1396 if test "$GXX" != "yes" && test "$IXX" != "yes"
1398 AC_MSG_ERROR([g++|clang++|icc required but not found])
1401 dnl Verify that GCC is version 3.0 or higher
1402 if test "$GCC" = "yes"
1407 #if !defined(__GNUC__) || __GNUC__ < 3
1408 #error Unsupported GCC version
1412 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1415 dnl Check for GNU Make. We use its extensions, so don't build without it
1416 if test -z "$llvm_cv_gnu_make_command"
1418 AC_MSG_ERROR([GNU Make required but not found])
1421 dnl Tool compatibility is okay if we make it here.
1424 dnl Check optional compiler flags.
1425 AC_MSG_CHECKING([optional compiler flags])
1426 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1427 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1428 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1430 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1431 dnl false positives, so disable it.
1433 NO_MAYBE_UNINITIALIZED=
1434 if test "$GXX" = "yes"
1436 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1437 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1438 dnl known to be uninitialized from cases which might be uninitialized. We
1439 dnl still want to catch the first kind of errors.
1440 if test -z "$NO_MAYBE_UNINITIALIZED"
1442 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1445 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1447 AC_ARG_WITH([python],
1448 [AS_HELP_STRING([--with-python], [path to python])],
1449 [PYTHON="$withval"])
1451 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1452 AC_MSG_CHECKING([for python])
1453 AC_MSG_RESULT([user defined: $with_python])
1455 if test -n "$PYTHON" ; then
1456 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1459 AC_PATH_PROG([PYTHON], [python python2 python26],
1460 [AC_MSG_RESULT([not found])
1461 AC_MSG_ERROR([could not find python 2.5 or higher])])
1464 AC_MSG_CHECKING([for python >= 2.5])
1465 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1466 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1467 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1468 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1469 if test "$ac_python_version_major" -gt "2" || \
1470 (test "$ac_python_version_major" -eq "2" && \
1471 test "$ac_python_version_minor" -ge "5") ; then
1472 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1474 AC_MSG_RESULT([not found])
1475 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1478 dnl===-----------------------------------------------------------------------===
1480 dnl=== SECTION 5: Check for libraries
1482 dnl===-----------------------------------------------------------------------===
1485 if test "$llvm_cv_os_type" = "MingW" ; then
1486 AC_CHECK_LIB(imagehlp, main)
1487 AC_CHECK_LIB(psapi, main)
1488 AC_CHECK_LIB(shell32, main)
1491 dnl dlopen() is required for plugin support.
1492 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1493 [Define if dlopen() is available on this platform.]),
1494 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1496 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1497 dnl macros to detect whether clock_gettime is available, this just finds the
1498 dnl right libraries to link with.
1499 AC_SEARCH_LIBS(clock_gettime,rt)
1501 dnl The curses library is optional; used for querying terminal info
1502 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1503 dnl We need the has_color functionality in curses for it to be useful.
1504 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1505 AC_DEFINE([HAVE_TERMINFO],[1],
1506 [Define if the setupterm() function is supported this platform.]))
1509 dnl libffi is optional; used to call external functions from the interpreter
1510 if test "$llvm_cv_enable_libffi" = "yes" ; then
1511 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1512 [Define if libffi is available on this platform.]),
1513 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1516 dnl mallinfo is optional; the code can compile (minus features) without it
1517 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1518 [Define if mallinfo() is available on this platform.]))
1520 dnl pthread locking functions are optional - but llvm will not be thread-safe
1522 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1523 AC_CHECK_LIB(pthread, pthread_mutex_init)
1524 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1525 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1526 [Have pthread_mutex_lock]))
1527 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1528 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1529 [Have pthread_rwlock_init]))
1530 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1531 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1532 [Have pthread_getspecific]))
1535 dnl zlib is optional; used for compression/uncompression
1536 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1537 AC_CHECK_LIB(z, compress2)
1540 dnl Allow extra x86-disassembler library
1542 AS_HELP_STRING([--with-udis86=<path>],
1543 [Use udis86 external x86 disassembler library]),
1545 AC_SUBST(USE_UDIS86, [1])
1548 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1550 AC_CHECK_LIB(udis86, ud_init, [], [
1551 echo "Error! You need to have libudis86 around."
1555 AC_SUBST(USE_UDIS86, [0]))
1556 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1557 [Define if use udis86 library])
1559 dnl Allow OProfile support for JIT output.
1560 AC_ARG_WITH(oprofile,
1561 AS_HELP_STRING([--with-oprofile=<prefix>],
1562 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1564 AC_SUBST(USE_OPROFILE, [1])
1566 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1568 AC_SUBST(USE_OPROFILE, [0]) ;;
1569 *) llvm_cv_oppath="${withval}/lib/oprofile"
1570 CPPFLAGS="-I${withval}/include";;
1572 case $llvm_cv_os_type in
1574 if test -n "$llvm_cv_oppath" ; then
1575 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1576 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1577 dnl libbfd is not included properly in libopagent in some Debian
1578 dnl versions. If libbfd isn't found at all, we assume opagent works
1580 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1581 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1582 echo "Error! You need to have libopagent around."
1585 AC_CHECK_HEADER([opagent.h], [], [
1586 echo "Error! You need to have opagent.h around."
1591 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1595 AC_SUBST(USE_OPROFILE, [0])
1597 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1598 [Define if we have the oprofile JIT-support library])
1600 dnl Enable support for Intel JIT Events API.
1601 AC_ARG_WITH(intel-jitevents,
1602 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1605 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1606 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1607 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1610 case $llvm_cv_os_type in
1611 Linux|Win32|Cygwin|MingW) ;;
1612 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1615 case "$llvm_cv_target_arch" in
1617 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1621 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1623 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1624 [Define if we have the Intel JIT API runtime support library])
1626 dnl Check for libxml2
1627 dnl Right now we're just checking for the existence, we could also check for a
1628 dnl particular version via --version on xml2-config
1629 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1631 AC_MSG_CHECKING(for libxml2 includes)
1632 if test "x$XML2CONFIG" = "x"; then
1633 AC_MSG_RESULT(xml2-config not found)
1635 LIBXML2_INC=`$XML2CONFIG --cflags`
1636 AC_MSG_RESULT($LIBXML2_INC)
1637 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1638 LIBXML2_LIBS="-lxml2"])
1640 AC_SUBST(LIBXML2_LIBS)
1641 AC_SUBST(LIBXML2_INC)
1643 dnl===-----------------------------------------------------------------------===
1645 dnl=== SECTION 6: Check for header files
1647 dnl===-----------------------------------------------------------------------===
1649 dnl First, use autoconf provided macros for specific headers that we need
1650 dnl We don't check for ancient stuff or things that are guaranteed to be there
1651 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1652 dnl Generally we're looking for POSIX headers.
1654 AC_HEADER_MMAP_ANONYMOUS
1660 AC_CHECK_HEADERS([cxxabi.h])
1662 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1663 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1664 AC_CHECK_HEADERS([utime.h])
1665 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1666 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1667 AC_CHECK_HEADERS([valgrind/valgrind.h])
1668 AC_CHECK_HEADERS([fenv.h])
1669 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1670 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1671 AC_CHECK_HEADERS(pthread.h,
1672 AC_SUBST(HAVE_PTHREAD, 1),
1673 AC_SUBST(HAVE_PTHREAD, 0))
1675 AC_SUBST(HAVE_PTHREAD, 0)
1677 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1678 AC_CHECK_HEADERS(zlib.h,
1679 AC_SUBST(HAVE_LIBZ, 1),
1680 AC_SUBST(HAVE_LIBZ, 0))
1682 AC_SUBST(HAVE_LIBZ, 0)
1685 dnl Try to find ffi.h.
1686 if test "$llvm_cv_enable_libffi" = "yes" ; then
1687 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1690 dnl Try to find Darwin specific crash reporting libraries.
1691 AC_CHECK_HEADERS([CrashReporterClient.h])
1693 dnl Try to find Darwin specific crash reporting global.
1694 AC_MSG_CHECKING([__crashreporter_info__])
1698 extern const char *__crashreporter_info__;
1700 __crashreporter_info__ = "test";
1706 AC_MSG_RESULT([yes])
1707 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1711 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1714 dnl===-----------------------------------------------------------------------===
1716 dnl=== SECTION 7: Check for types and structures
1718 dnl===-----------------------------------------------------------------------===
1723 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1725 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1726 AC_CHECK_TYPES([uint64_t],,
1727 AC_CHECK_TYPES([u_int64_t],,
1728 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1730 dnl===-----------------------------------------------------------------------===
1732 dnl=== SECTION 8: Check for specific functions needed
1734 dnl===-----------------------------------------------------------------------===
1736 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1737 AC_CHECK_FUNCS([powf fmodf strtof round ])
1738 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1739 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1740 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1741 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1742 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1743 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1744 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1745 AC_CHECK_FUNCS([futimes futimens])
1749 dnl Check the declaration "Secure API" on Windows environments.
1750 AC_CHECK_DECLS([strerror_s])
1752 dnl Check symbols in libgcc.a for JIT on Mingw.
1753 if test "$llvm_cv_os_type" = "MingW" ; then
1754 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1755 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1756 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1757 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1759 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1760 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1761 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1762 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1763 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1764 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1765 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1766 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1767 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1768 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1770 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1771 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1774 dnl Check Win32 API EnumerateLoadedModules.
1775 if test "$llvm_cv_os_type" = "MingW" ; then
1776 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1780 #include <windows.h>
1781 #include <imagehlp.h>
1782 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1783 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1787 AC_MSG_RESULT([yes])
1788 llvm_cv_win32_elmcb_pcstr="PCSTR"
1792 llvm_cv_win32_elmcb_pcstr="PSTR"
1794 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1797 dnl Check for variations in the Standard C++ library and STL. These macros are
1798 dnl provided by LLVM in the autoconf/m4 directory.
1802 dnl Check for mmap support.We also need to know if /dev/zero is required to
1803 dnl be opened for allocating RWX memory.
1804 dnl Make sure we aren't attempting to configure for an unknown system
1805 if test "$llvm_cv_platform_type" = "Unix" ; then
1808 AC_NEED_DEV_ZERO_FOR_MMAP
1810 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1812 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1814 if test "$ac_cv_func_mmap_file" = "no"
1816 AC_MSG_WARN([mmap() of files required but not found])
1820 dnl atomic builtins are required for threading support.
1821 AC_MSG_CHECKING(for GCC atomic builtins)
1822 dnl Since we'll be using these atomic builtins in C++ files we should test
1823 dnl the C++ compiler.
1829 volatile unsigned long val = 1;
1830 __sync_synchronize();
1831 __sync_val_compare_and_swap(&val, 1, 0);
1832 __sync_add_and_fetch(&val, 1);
1833 __sync_sub_and_fetch(&val, 1);
1839 AC_MSG_RESULT([yes])
1840 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1844 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1845 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1849 dnl===-----------------------------------------------------------------------===
1851 dnl=== SECTION 9: Additional checks, variables, etc.
1853 dnl===-----------------------------------------------------------------------===
1855 dnl Handle 32-bit linux systems running a 64-bit kernel.
1856 dnl This has to come after section 4 because it invokes the compiler.
1857 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1859 if test "$llvm_cv_linux_mixed" = "yes"; then
1860 llvm_cv_target_arch="x86"
1865 dnl Check whether __dso_handle is present
1866 AC_CHECK_FUNCS([__dso_handle])
1868 dnl Propagate the shared library extension that the libltdl checks did to
1869 dnl the Makefiles so we can use it there too
1870 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1872 dnl Propagate the run-time library path variable that the libltdl
1873 dnl checks found to the Makefiles so we can use it there too
1874 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1876 dnl Translate the various configuration directories and other basic
1877 dnl information into substitutions that will end up in Makefile.config.in
1878 dnl that these configured values can be used by the makefiles
1879 if test "${prefix}" = "NONE" ; then
1882 eval LLVM_PREFIX="${prefix}";
1883 eval LLVM_BINDIR="${prefix}/bin";
1884 eval LLVM_DATADIR="${prefix}/share/llvm";
1885 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1886 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1887 eval LLVM_INCLUDEDIR="${prefix}/include";
1888 eval LLVM_INFODIR="${prefix}/info";
1889 eval LLVM_MANDIR="${prefix}/man";
1890 LLVM_CONFIGTIME=`date`
1891 AC_SUBST(LLVM_PREFIX)
1892 AC_SUBST(LLVM_BINDIR)
1893 AC_SUBST(LLVM_DATADIR)
1894 AC_SUBST(LLVM_DOCSDIR)
1895 AC_SUBST(LLVM_ETCDIR)
1896 AC_SUBST(LLVM_INCLUDEDIR)
1897 AC_SUBST(LLVM_INFODIR)
1898 AC_SUBST(LLVM_MANDIR)
1899 AC_SUBST(LLVM_CONFIGTIME)
1901 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1902 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1903 LLVM_CONFIGTIME="(timestamp not enabled)"
1906 dnl Place the various directories into the config.h file as #defines so that we
1907 dnl can know about the installation paths within LLVM.
1908 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1909 [Installation prefix directory])
1910 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1911 [Installation directory for binary executables])
1912 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1913 [Installation directory for data files])
1914 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1915 [Installation directory for documentation])
1916 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1917 [Installation directory for config files])
1918 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1919 [Installation directory for include files])
1920 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1921 [Installation directory for .info files])
1922 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1923 [Installation directory for man pages])
1924 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1925 [Time at which LLVM was configured])
1926 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1927 [Host triple LLVM will be executed on])
1928 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1929 [Target triple LLVM will generate code for by default])
1931 dnl Determine which bindings to build.
1932 if test "$BINDINGS_TO_BUILD" = auto ; then
1933 BINDINGS_TO_BUILD=""
1934 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1935 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1938 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1940 dnl This isn't really configurey, but it avoids having to repeat the list in
1942 AC_SUBST(ALL_BINDINGS,ocaml)
1944 dnl Do any work necessary to ensure that bindings have what they need.
1945 binding_prereqs_failed=0
1946 for a_binding in $BINDINGS_TO_BUILD ; do
1947 case "$a_binding" in
1949 if test "x$OCAMLC" = x ; then
1950 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1951 binding_prereqs_failed=1
1953 if test "x$OCAMLDEP" = x ; then
1954 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1955 binding_prereqs_failed=1
1957 if test "x$OCAMLOPT" = x ; then
1958 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1959 dnl ocamlopt is optional!
1961 if test "x$with_ocaml_libdir" != xauto ; then
1962 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1964 ocaml_stdlib="`"$OCAMLC" -where`"
1965 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1967 # ocaml stdlib is beneath our prefix; use stdlib
1968 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1970 # ocaml stdlib is outside our prefix; use libdir/ocaml
1971 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1977 if test "$binding_prereqs_failed" = 1 ; then
1978 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1981 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1982 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1984 dnl Determine linker rpath flag
1985 if test "$llvm_cv_link_use_r" = "yes" ; then
1992 dnl Determine linker rdynamic flag
1993 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1994 RDYNAMIC="-rdynamic"
2000 dnl===-----------------------------------------------------------------------===
2002 dnl=== SECTION 10: Specify the output files and generate it
2004 dnl===-----------------------------------------------------------------------===
2006 dnl Configure header files
2007 dnl WARNING: dnl If you add or remove any of the following config headers, then
2008 dnl you MUST also update Makefile so that the variable FilesToConfig
2009 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2010 dnl files can be updated automatically when their *.in sources change.
2011 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2012 AH_TOP([#ifndef CONFIG_H
2016 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2017 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2018 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2019 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2020 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2022 dnl Configure the makefile's configuration data
2023 AC_CONFIG_FILES([Makefile.config])
2025 dnl Configure the RPM spec file for LLVM
2026 AC_CONFIG_FILES([llvm.spec])
2028 dnl Configure doxygen's configuration file
2029 AC_CONFIG_FILES([docs/doxygen.cfg])
2031 dnl Configure clang, if present
2032 if test "${clang_src_root}" = ""; then
2033 clang_src_root="$srcdir/tools/clang"
2035 if test -f ${clang_src_root}/README.txt; then
2036 dnl Use variables to stay under 80 columns.
2037 configh="include/clang/Config/config.h"
2038 doxy="docs/doxygen.cfg"
2039 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2040 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2043 dnl OCaml findlib META file
2044 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2046 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2047 test "x$program_prefix" = "xNONE" && program_prefix=""
2048 AC_SUBST([program_prefix])
2051 dnl Do special configuration of Makefiles
2052 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2053 AC_CONFIG_MAKEFILE(Makefile)
2054 AC_CONFIG_MAKEFILE(Makefile.common)
2055 AC_CONFIG_MAKEFILE(examples/Makefile)
2056 AC_CONFIG_MAKEFILE(lib/Makefile)
2057 AC_CONFIG_MAKEFILE(test/Makefile)
2058 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2059 AC_CONFIG_MAKEFILE(unittests/Makefile)
2060 AC_CONFIG_MAKEFILE(tools/Makefile)
2061 AC_CONFIG_MAKEFILE(utils/Makefile)
2062 AC_CONFIG_MAKEFILE(projects/Makefile)
2063 AC_CONFIG_MAKEFILE(bindings/Makefile)
2064 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2066 dnl Finally, crank out the output