1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl License. See LICENSE.TXT for details.
7 dnl===-----------------------------------------------------------------------===
8 dnl This is the LLVM configuration script. It is processed by the autoconf
9 dnl program to produce a script named configure. This script contains the
10 dnl configuration checks that LLVM needs in order to support multiple platforms.
11 dnl This file is composed of 10 sections per the recommended organization of
12 dnl autoconf input defined in the autoconf documentation. As this file evolves,
13 dnl please keep the various types of checks within their sections. The sections
16 dnl SECTION 1: Initialization & Setup
17 dnl SECTION 2: Architecture, target, and host checks
18 dnl SECTION 3: Command line arguments for the configure script.
19 dnl SECTION 4: Check for programs we need and that they are the right version
20 dnl SECTION 5: Check for libraries
21 dnl SECTION 6: Check for header files
22 dnl SECTION 7: Check for types and structures
23 dnl SECTION 8: Check for specific functions needed
24 dnl SECTION 9: Additional checks, variables, etc.
25 dnl SECTION 10: Specify the output files and generate it
27 dnl===-----------------------------------------------------------------------===
29 dnl=== SECTION 1: Initialization & Setup
31 dnl===-----------------------------------------------------------------------===
32 dnl Initialize autoconf and define the package name, version number and
33 dnl address for reporting bugs.
35 AC_INIT([LLVM],[3.7.0svn],[http://llvm.org/bugs/])
40 LLVM_VERSION_SUFFIX=svn
42 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
43 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])
44 AC_DEFINE_UNQUOTED([LLVM_VERSION_PATCH], $LLVM_VERSION_PATCH, [Patch version of the LLVM API])
45 AC_DEFINE_UNQUOTED([LLVM_VERSION_STRING], "$PACKAGE_VERSION", [LLVM version string])
47 AC_SUBST([LLVM_VERSION_MAJOR])
48 AC_SUBST([LLVM_VERSION_MINOR])
49 AC_SUBST([LLVM_VERSION_PATCH])
50 AC_SUBST([LLVM_VERSION_SUFFIX])
52 dnl Provide a copyright substitution and ensure the copyright notice is included
53 dnl in the output of --version option of the generated configure script.
54 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
55 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
57 dnl Indicate that we require autoconf 2.60 or later.
60 dnl Verify that the source directory is valid. This makes sure that we are
61 dnl configuring LLVM and not some other package (it validates --srcdir argument)
62 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
64 dnl Place all of the extra autoconf files into the config subdirectory. Tell
65 dnl various tools where the m4 autoconf macros are.
66 AC_CONFIG_AUX_DIR([autoconf])
68 dnl Quit if the source directory has already been configured.
69 dnl NOTE: This relies upon undocumented autoconf behavior.
70 if test ${srcdir} != "." ; then
71 if test -f ${srcdir}/include/llvm/Config/config.h ; then
72 AC_MSG_ERROR([Already configured in ${srcdir}])
76 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
77 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
81 dnl We need to check for the compiler up here to avoid anything else
82 dnl starting with a different one.
84 AC_PROG_CXX(clang++ g++)
87 dnl If CXX is Clang, check that it can find and parse C++ standard library
89 if test "$CXX" = "clang++" ; then
90 AC_MSG_CHECKING([whether clang works])
92 dnl Note that space between 'include' and '(' is required. There's a broken
93 dnl regex in aclocal that otherwise will think that we call m4's include
95 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
96 #if __has_include (<cxxabi.h>)
99 #if __has_include (<unwind.h>)
108 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
113 dnl Set up variables that track whether the host compiler is GCC or Clang where
114 dnl we can effectively sanity check them. We don't try to sanity check all the
115 dnl other possible compilers.
116 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
118 llvm_cv_cxx_compiler=unknown
119 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
123 llvm_cv_cxx_compiler=clang,
124 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
128 llvm_cv_cxx_compiler=gcc, [])])
130 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
132 dnl Configure all of the projects present in our source tree. While we could
133 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
134 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
135 dnl Instead we match on the known projects.
138 dnl One tricky part of doing this is that some projects depend upon other
139 dnl projects. For example, several projects rely upon the LLVM test suite.
140 dnl We want to configure those projects first so that their object trees are
141 dnl created before running the configure scripts of projects that depend upon
145 dnl Several projects use the LLVM test suite, so configure it next.
146 if test -d ${srcdir}/projects/test-suite ; then
147 AC_CONFIG_SUBDIRS([projects/test-suite])
150 dnl llvm-test is the old name of the test-suite, kept here for backwards
152 if test -d ${srcdir}/projects/llvm-test ; then
153 AC_CONFIG_SUBDIRS([projects/llvm-test])
156 dnl Some projects use poolalloc; configure that next
157 if test -d ${srcdir}/projects/poolalloc ; then
158 AC_CONFIG_SUBDIRS([projects/poolalloc])
161 if test -d ${srcdir}/projects/llvm-poolalloc ; then
162 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
165 dnl Check for all other projects
166 for i in `ls ${srcdir}/projects`
168 if test -d ${srcdir}/projects/${i} ; then
170 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
177 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
183 dnl Disable the build of polly, even if it is checked out into tools/polly.
185 AS_HELP_STRING([--enable-polly],
186 [Use polly if available (default is YES)]),,
189 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
190 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
191 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
192 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
196 dnl Check if polly is checked out into tools/polly and configure it if
198 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
199 AC_SUBST(LLVM_HAS_POLLY,1)
200 AC_CONFIG_SUBDIRS([tools/polly])
203 dnl===-----------------------------------------------------------------------===
205 dnl=== SECTION 2: Architecture, target, and host checks
207 dnl===-----------------------------------------------------------------------===
209 dnl Check the target for which we're compiling and the host that will do the
210 dnl compilations. This will tell us which LLVM compiler will be used for
211 dnl compiling SSA into object code. This needs to be done early because
212 dnl following tests depend on it.
215 dnl Determine the platform type and cache its value. This helps us configure
216 dnl the System library to the correct build platform.
217 AC_CACHE_CHECK([type of operating system we're going to host on],
221 llvm_cv_link_all_option="-Wl,--whole-archive"
222 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
223 llvm_cv_os_type="AIX"
224 llvm_cv_platform_type="Unix" ;;
226 llvm_cv_link_all_option="-Wl,--whole-archive"
227 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
228 llvm_cv_os_type="IRIX"
229 llvm_cv_platform_type="Unix" ;;
231 llvm_cv_link_all_option="-Wl,--whole-archive"
232 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
233 llvm_cv_os_type="Cygwin"
234 llvm_cv_platform_type="Unix" ;;
236 llvm_cv_link_all_option="-Wl,-all_load"
237 llvm_cv_no_link_all_option="-Wl,-noall_load"
238 llvm_cv_os_type="Darwin"
239 llvm_cv_platform_type="Unix" ;;
241 llvm_cv_link_all_option="-Wl,-all_load"
242 llvm_cv_no_link_all_option="-Wl,-noall_load"
243 llvm_cv_os_type="Minix"
244 llvm_cv_platform_type="Unix" ;;
246 llvm_cv_link_all_option="-Wl,--whole-archive"
247 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
248 llvm_cv_os_type="FreeBSD"
249 llvm_cv_platform_type="Unix" ;;
251 llvm_cv_link_all_option="-Wl,--whole-archive"
252 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
253 llvm_cv_os_type="GNU/kFreeBSD"
254 llvm_cv_platform_type="Unix" ;;
256 llvm_cv_link_all_option="-Wl,--whole-archive"
257 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
258 llvm_cv_os_type="OpenBSD"
259 llvm_cv_platform_type="Unix" ;;
261 llvm_cv_link_all_option="-Wl,--whole-archive"
262 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
263 llvm_cv_os_type="NetBSD"
264 llvm_cv_platform_type="Unix" ;;
266 llvm_cv_link_all_option="-Wl,--whole-archive"
267 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
268 llvm_cv_os_type="DragonFly"
269 llvm_cv_platform_type="Unix" ;;
271 llvm_cv_link_all_option="-Wl,--whole-archive"
272 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
273 llvm_cv_os_type="HP-UX"
274 llvm_cv_platform_type="Unix" ;;
276 llvm_cv_link_all_option="-Wl,--whole-archive"
277 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
278 llvm_cv_os_type="Interix"
279 llvm_cv_platform_type="Unix" ;;
281 llvm_cv_link_all_option="-Wl,--whole-archive"
282 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
283 llvm_cv_os_type="Linux"
284 llvm_cv_platform_type="Unix" ;;
286 llvm_cv_link_all_option="-Wl,--whole-archive"
287 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
288 llvm_cv_os_type="GNU"
289 llvm_cv_platform_type="Unix" ;;
291 llvm_cv_link_all_option="-Wl,-z,allextract"
292 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
293 llvm_cv_os_type="SunOS"
294 llvm_cv_platform_type="Unix" ;;
296 llvm_cv_link_all_option="-Wl,--whole-archive"
297 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
298 llvm_cv_os_type="Win32"
299 llvm_cv_platform_type="Win32" ;;
301 llvm_cv_link_all_option="-Wl,--whole-archive"
302 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
303 llvm_cv_os_type="MingW"
304 llvm_cv_platform_type="Win32" ;;
306 llvm_cv_link_all_option="-Wl,--whole-archive"
307 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
308 llvm_cv_os_type="Haiku"
309 llvm_cv_platform_type="Unix" ;;
311 llvm_cv_link_all_option="-Wl,--whole-archive"
312 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
313 llvm_cv_os_type="Freestanding"
314 llvm_cv_platform_type="Unix" ;;
316 llvm_cv_link_all_option="-Wl,--whole-archive"
317 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
318 llvm_cv_os_type="Freestanding"
319 llvm_cv_platform_type="Unix" ;;
321 llvm_cv_link_all_option=""
322 llvm_cv_no_link_all_option=""
323 llvm_cv_os_type="Unknown"
324 llvm_cv_platform_type="Unknown" ;;
327 AC_CACHE_CHECK([type of operating system we're going to target],
328 [llvm_cv_target_os_type],
331 llvm_cv_target_os_type="AIX" ;;
333 llvm_cv_target_os_type="IRIX" ;;
335 llvm_cv_target_os_type="Cygwin" ;;
337 llvm_cv_target_os_type="Darwin" ;;
339 llvm_cv_target_os_type="Minix" ;;
341 llvm_cv_target_os_type="FreeBSD" ;;
343 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
345 llvm_cv_target_os_type="OpenBSD" ;;
347 llvm_cv_target_os_type="NetBSD" ;;
349 llvm_cv_target_os_type="DragonFly" ;;
351 llvm_cv_target_os_type="HP-UX" ;;
353 llvm_cv_target_os_type="Interix" ;;
355 llvm_cv_target_os_type="Linux" ;;
357 llvm_cv_target_os_type="GNU" ;;
359 llvm_cv_target_os_type="SunOS" ;;
361 llvm_cv_target_os_type="Win32" ;;
363 llvm_cv_target_os_type="MingW" ;;
365 llvm_cv_target_os_type="Haiku" ;;
367 llvm_cv_target_os_type="RTEMS" ;;
369 llvm_cv_target_os_type="NativeClient" ;;
371 llvm_cv_target_os_type="Freestanding" ;;
373 llvm_cv_target_os_type="Unknown" ;;
376 dnl Make sure we aren't attempting to configure for an unknown system
377 if test "$llvm_cv_os_type" = "Unknown" ; then
378 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
381 dnl Set the "OS" Makefile variable based on the platform type so the
382 dnl makefile can configure itself to specific build hosts
383 AC_SUBST(OS,$llvm_cv_os_type)
384 AC_SUBST(HOST_OS,$llvm_cv_os_type)
385 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
387 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
388 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
389 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
391 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
392 dnl This is used by lib/Support to determine the basic kind of implementation
394 case $llvm_cv_platform_type in
396 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
397 AC_SUBST(LLVM_ON_UNIX,[1])
398 AC_SUBST(LLVM_ON_WIN32,[0])
401 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
402 AC_SUBST(LLVM_ON_UNIX,[0])
403 AC_SUBST(LLVM_ON_WIN32,[1])
407 dnl Determine what our target architecture is and configure accordingly.
408 dnl This will allow Makefiles to make a distinction between the hardware and
410 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
412 i?86-*) llvm_cv_target_arch="x86" ;;
413 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
414 sparc*-*) llvm_cv_target_arch="Sparc" ;;
415 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
416 arm64*-*) llvm_cv_target_arch="AArch64" ;;
417 arm*-*) llvm_cv_target_arch="ARM" ;;
418 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
419 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
420 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
421 xcore-*) llvm_cv_target_arch="XCore" ;;
422 msp430-*) llvm_cv_target_arch="MSP430" ;;
423 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
424 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
425 s390x-*) llvm_cv_target_arch="SystemZ" ;;
426 *) llvm_cv_target_arch="Unknown" ;;
429 if test "$llvm_cv_target_arch" = "Unknown" ; then
430 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
433 dnl Determine the LLVM native architecture for the target
434 case "$llvm_cv_target_arch" in
435 x86) LLVM_NATIVE_ARCH="X86" ;;
436 x86_64) LLVM_NATIVE_ARCH="X86" ;;
437 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
440 dnl Define a substitution, ARCH, for the target architecture
441 AC_SUBST(ARCH,$llvm_cv_target_arch)
442 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
444 dnl Determine what our host architecture.
445 dnl This will allow MCJIT regress tests runs only for supported
448 i?86-*) host_arch="x86" ;;
449 amd64-* | x86_64-*) host_arch="x86_64" ;;
450 sparc*-*) host_arch="Sparc" ;;
451 powerpc*-*) host_arch="PowerPC" ;;
452 arm64*-*) host_arch="AArch64" ;;
453 arm*-*) host_arch="ARM" ;;
454 aarch64*-*) host_arch="AArch64" ;;
455 mips-* | mips64-*) host_arch="Mips" ;;
456 mipsel-* | mips64el-*) host_arch="Mips" ;;
457 xcore-*) host_arch="XCore" ;;
458 msp430-*) host_arch="MSP430" ;;
459 hexagon-*) host_arch="Hexagon" ;;
460 s390x-*) host_arch="SystemZ" ;;
461 *) host_arch="Unknown" ;;
464 if test "$host_arch" = "Unknown" ; then
465 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
468 AC_SUBST(HOST_ARCH,$host_arch)
470 dnl Check for build platform executable suffix if we're cross-compiling
471 if test "$cross_compiling" = yes; then
472 AC_SUBST(LLVM_CROSS_COMPILING, [1])
474 ac_build_prefix=${build_alias}-
475 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
476 if test -z "$BUILD_CXX"; then
477 AC_CHECK_PROG(BUILD_CXX, g++, g++)
478 if test -z "$BUILD_CXX"; then
479 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
483 AC_SUBST(LLVM_CROSS_COMPILING, [0])
486 dnl Check to see if there's a .svn or .git directory indicating that this
487 dnl build is being done from a checkout. This sets up several defaults for
488 dnl the command line switches. When we build with a checkout directory,
489 dnl we get a debug with assertions turned on. Without, we assume a source
490 dnl release and we get an optimized build without assertions.
491 dnl See --enable-optimized and --enable-assertions below
492 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
495 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
501 dnl===-----------------------------------------------------------------------===
503 dnl=== SECTION 3: Command line arguments for the configure script.
505 dnl===-----------------------------------------------------------------------===
507 dnl --enable-libcpp : check whether or not to use libc++ on the command line
508 AC_ARG_ENABLE(libcpp,
509 AS_HELP_STRING([--enable-libcpp],
510 [Use libc++ if available (default is NO)]),,
513 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
514 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
515 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
516 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
519 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
520 dnl be bypassed by passing a flag if necessary on a platform. We have to do
521 dnl these checks here so that we have the configuration of the standard C++
522 dnl library finished.
523 AC_ARG_ENABLE(compiler-version-checks,
524 AS_HELP_STRING([--enable-compiler-version-checks],
525 [Check the version of the host compiler (default is YES)]),,
532 case "$llvm_cv_cxx_compiler" in
534 AC_MSG_CHECKING([whether Clang is new enough])
535 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
536 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
537 #error This version of Clang is too old to build LLVM
540 [AC_MSG_RESULT([yes])],
543 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
544 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
545 bypass these sanity checks.])])
547 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
548 dnl are sometimes deeply confusing though. Here we test for an obvious
549 dnl incomplete feature in 4.6's standard library that was completed in
550 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
551 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
552 dnl that happening in the Makefile.
553 if test "$ENABLE_LIBCPP" -eq 0 ; then
554 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
555 llvm_cv_old_cxxflags="$CXXFLAGS"
556 CXXFLAGS="$CXXFLAGS -std=c++0x"
557 AC_LINK_IFELSE([AC_LANG_SOURCE([[
559 std::atomic<float> x(0.0f);
560 int main() { return (float)x; }
562 [AC_MSG_RESULT([yes])],
565 We detected a missing feature in the standard C++ library that was known to be
566 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
567 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
568 than 4.7. You will need to update your system and ensure Clang uses the newer
571 If this error is incorrect or you need to force things to work, you may pass
572 '--disable-compiler-version-checks' to configure to bypass this test.])])
573 CXXFLAGS="$llvm_cv_old_cxxflags"
577 AC_MSG_CHECKING([whether GCC is new enough])
578 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
579 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
580 #error This version of GCC is too old to build LLVM
583 [AC_MSG_RESULT([yes])],
586 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
587 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
588 bypass these sanity checks.])])
596 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
600 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
602 AS_HELP_STRING([--enable-cxx1y],
603 [Use c++1y if available (default is NO)]),,
606 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
607 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
608 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
609 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
612 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
614 AC_ARG_ENABLE(split-dwarf,
615 AS_HELP_STRING([--enable-split-dwarf],
616 [Use split-dwarf if available (default is NO)]),,
619 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
620 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
621 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
622 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
625 dnl --enable-clang-arcmt: check whether to enable clang arcmt
627 AC_ARG_ENABLE(clang-arcmt,
628 AS_HELP_STRING([--enable-clang-arcmt],
629 [Enable building of clang ARCMT (default is YES)]),
630 clang_arcmt="$enableval",
633 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
634 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
635 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
636 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
639 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
640 clang_plugin_support="yes"
641 AC_ARG_ENABLE(clang-plugin-support,
642 AS_HELP_STRING([--enable-clang-plugin-support],
643 [Enable plugin support in clang (default is YES)]),
644 clang_plugin_support="$enableval",
647 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
648 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
649 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
650 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
653 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
654 clang_static_analyzer="yes"
655 AC_ARG_ENABLE(clang-static-analyzer,
656 AS_HELP_STRING([--enable-clang-static-analyzer],
657 [Enable building of clang Static Analyzer (default is YES)]),
658 clang_static_analyzer="$enableval",
661 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
663 if test ${clang_arcmt} != "no" ; then
664 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
666 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
668 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
669 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
672 dnl --enable-optimized : check whether they want to do an optimized build:
673 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
674 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
675 if test ${enableval} = "no" ; then
676 AC_SUBST(ENABLE_OPTIMIZED,[[]])
678 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
681 dnl --enable-profiling : check whether they want to do a profile build:
682 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
683 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
684 if test ${enableval} = "no" ; then
685 AC_SUBST(ENABLE_PROFILING,[[]])
687 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
690 dnl --enable-assertions : check whether they want to turn on assertions or not:
691 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
692 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
693 if test ${enableval} = "yes" ; then
694 AC_SUBST(DISABLE_ASSERTIONS,[[]])
696 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
699 dnl --enable-werror : check whether we want Werror on by default
700 AC_ARG_ENABLE(werror,AS_HELP_STRING(
701 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
703 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
704 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
705 default) AC_SUBST(ENABLE_WERROR,[0]);;
706 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
709 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
710 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
711 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
712 if test ${enableval} = "yes" ; then
713 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
714 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
716 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
717 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
720 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
721 AC_ARG_ENABLE(debug-runtime,
722 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
723 if test ${enableval} = "no" ; then
724 AC_SUBST(DEBUG_RUNTIME,[[]])
726 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
729 dnl --enable-debug-symbols : should even optimized compiler libraries
730 dnl have debug symbols?
731 AC_ARG_ENABLE(debug-symbols,
732 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)
733 if test ${enableval} = "no" ; then
734 AC_SUBST(DEBUG_SYMBOLS,[[]])
736 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
739 dnl --enable-keep-symbols : do not strip installed executables
740 AC_ARG_ENABLE(keep-symbols,
741 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
742 if test ${enableval} = "no" ; then
743 AC_SUBST(KEEP_SYMBOLS,[[]])
745 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
748 dnl --enable-jit: check whether they want to enable the jit
750 AS_HELP_STRING(--enable-jit,
751 [Enable Just In Time Compiling (default is YES)]),,
753 if test ${enableval} = "no"
757 case "$llvm_cv_target_arch" in
758 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
759 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
760 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
761 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
762 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
763 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
764 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
765 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
766 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
767 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
768 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
769 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
773 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
774 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
776 dnl Allow enablement of building and installing docs
778 AS_HELP_STRING([--enable-docs],
779 [Build documents (default is YES)]),,
782 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
783 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
784 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
785 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
788 dnl Allow enablement of doxygen generated documentation
789 AC_ARG_ENABLE(doxygen,
790 AS_HELP_STRING([--enable-doxygen],
791 [Build doxygen documentation (default is NO)]),,
794 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
795 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
796 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
797 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
800 dnl Allow disablement of threads
801 AC_ARG_ENABLE(threads,
802 AS_HELP_STRING([--enable-threads],
803 [Use threads if available (default is YES)]),,
806 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
807 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
808 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
809 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
811 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
812 [Define if threads enabled])
814 dnl Allow disablement of pthread.h
815 AC_ARG_ENABLE(pthreads,
816 AS_HELP_STRING([--enable-pthreads],
817 [Use pthreads if available (default is YES)]),,
820 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
821 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
822 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
823 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
826 dnl Allow disablement of zlib
828 AS_HELP_STRING([--enable-zlib],
829 [Use zlib for compression/decompression if
830 available (default is YES)]),,
833 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
834 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
835 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
836 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
838 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
839 [Define if zlib is enabled])
841 dnl Allow building without position independent code
843 AS_HELP_STRING([--enable-pic],
844 [Build LLVM with Position Independent Code (default is YES)]),,
847 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
848 no) AC_SUBST(ENABLE_PIC,[0]) ;;
849 default) AC_SUBST(ENABLE_PIC,[1]) ;;
850 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
852 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
853 [Define if position independent code is enabled])
855 dnl Allow building a shared library and linking tools against it.
856 AC_ARG_ENABLE(shared,
857 AS_HELP_STRING([--enable-shared],
858 [Build a shared library and link tools against it (default is NO)]),,
861 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
862 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
863 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
864 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
867 dnl Allow libstdc++ is embedded in LLVM.dll.
868 AC_ARG_ENABLE(embed-stdcxx,
869 AS_HELP_STRING([--enable-embed-stdcxx],
870 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
873 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
874 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
875 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
876 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
879 dnl Enable embedding timestamp information into build.
880 AC_ARG_ENABLE(timestamps,
881 AS_HELP_STRING([--enable-timestamps],
882 [Enable embedding timestamp information in build (default is YES)]),,
885 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
886 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
887 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
888 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
890 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
891 [Define if timestamp information (e.g., __DATE__) is allowed])
893 dnl Enable support for showing backtraces.
894 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
895 [--enable-backtraces],
896 [Enable embedding backtraces on crash (default is YES)]),
897 [case "$enableval" in
898 yes) llvm_cv_enable_backtraces="yes" ;;
899 no) llvm_cv_enable_backtraces="no" ;;
900 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
902 llvm_cv_enable_backtraces="yes")
903 if test "$llvm_cv_enable_backtraces" = "yes" ; then
904 AC_DEFINE([ENABLE_BACKTRACES],[1],
905 [Define if you want backtraces on crash])
908 dnl Enable installing platform specific signal handling overrides, for improved
909 dnl CrashRecovery support or interaction with crash reporting software. This
910 dnl support may be inappropriate for some clients embedding LLVM as a library.
911 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
912 [--enable-crash-overrides],
913 [Enable crash handling overrides (default is YES)]),
914 [case "$enableval" in
915 yes) llvm_cv_enable_crash_overrides="yes" ;;
916 no) llvm_cv_enable_crash_overrides="no" ;;
917 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
919 llvm_cv_enable_crash_overrides="yes")
920 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
921 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
922 [Define to enable crash handling overrides])
925 dnl List all possible targets
926 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
927 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
929 dnl Allow specific targets to be specified for building (or not)
931 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
932 [Build specific host targets: all or target1,target2,... Valid targets are:
933 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
934 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
936 if test "$enableval" = host-only ; then
940 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
941 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
943 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
944 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
945 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
946 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
947 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
948 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
949 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
950 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
951 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
952 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
953 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
954 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
955 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
956 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
957 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
958 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
959 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
960 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
961 host) case "$llvm_cv_target_arch" in
962 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
963 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
964 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
965 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
966 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
967 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
968 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
969 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
970 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
971 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
972 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
973 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
974 *) AC_MSG_ERROR([Can not set target to build]) ;;
976 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
982 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
983 [Build experimental host targets: disable or target1,target2,...
984 (default=disable)]),,
987 if test ${enableval} != "disable"
989 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
992 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
994 dnl Determine whether we are building LLVM support for the native architecture.
995 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
996 for a_target in $TARGETS_TO_BUILD; do
997 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
998 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
999 [LLVM architecture name for the native architecture, if available])
1000 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1001 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1002 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1003 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1004 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1005 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1007 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1008 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1010 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1011 [LLVM name for the native Target init function, if available])
1012 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1013 [LLVM name for the native TargetInfo init function, if available])
1014 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1015 [LLVM name for the native target MC init function, if available])
1016 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1017 [LLVM name for the native AsmPrinter init function, if available])
1018 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1019 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1020 [LLVM name for the native AsmParser init function, if available])
1022 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1023 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1024 [LLVM name for the native Disassembler init function, if available])
1029 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1030 dnl target feature def files.
1031 LLVM_ENUM_TARGETS=""
1032 LLVM_ENUM_ASM_PRINTERS=""
1033 LLVM_ENUM_ASM_PARSERS=""
1034 LLVM_ENUM_DISASSEMBLERS=""
1035 for target_to_build in $TARGETS_TO_BUILD; do
1036 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1037 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1038 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1040 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1041 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1043 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1044 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1047 AC_SUBST(LLVM_ENUM_TARGETS)
1048 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1049 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1050 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1052 dnl Override the option to use for optimized builds.
1053 AC_ARG_WITH(optimize-option,
1054 AS_HELP_STRING([--with-optimize-option],
1055 [Select the compiler options to use for optimized builds]),,
1057 AC_MSG_CHECKING([optimization flags])
1060 case "$llvm_cv_os_type" in
1061 FreeBSD) optimize_option=-O2 ;;
1062 MingW) optimize_option=-O2 ;;
1063 *) optimize_option=-O3 ;;
1065 *) optimize_option="$withval" ;;
1067 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1068 AC_MSG_RESULT([$optimize_option])
1070 dnl Specify extra build options
1071 AC_ARG_WITH(extra-options,
1072 AS_HELP_STRING([--with-extra-options],
1073 [Specify additional options to compile LLVM with]),,
1076 default) EXTRA_OPTIONS= ;;
1077 *) EXTRA_OPTIONS=$withval ;;
1079 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1081 dnl Specify extra linker build options
1082 AC_ARG_WITH(extra-ld-options,
1083 AS_HELP_STRING([--with-extra-ld-options],
1084 [Specify additional options to link LLVM with]),,
1087 default) EXTRA_LD_OPTIONS= ;;
1088 *) EXTRA_LD_OPTIONS=$withval ;;
1090 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1092 dnl Allow specific bindings to be specified for building (or not)
1093 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1094 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1096 BINDINGS_TO_BUILD=""
1097 case "$enableval" in
1098 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1099 all ) BINDINGS_TO_BUILD="ocaml" ;;
1100 none | no) BINDINGS_TO_BUILD="" ;;
1101 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1102 case "$a_binding" in
1103 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1104 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1110 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1111 dnl script for bindings/ocaml/configure, except that its auto value depends on
1112 dnl OCAMLC, which is found here to support tests.
1113 AC_ARG_WITH([ocaml-libdir],
1114 [AS_HELP_STRING([--with-ocaml-libdir],
1115 [Specify install location for ocaml bindings (default is stdlib)])],
1119 auto) with_ocaml_libdir="$withval" ;;
1120 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1121 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1124 AC_ARG_WITH(clang-srcdir,
1125 AS_HELP_STRING([--with-clang-srcdir],
1126 [Directory to the out-of-tree Clang source]),,
1129 -) clang_src_root="" ;;
1130 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1131 *) clang_src_root="$ac_pwd/$withval" ;;
1133 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1135 AC_ARG_WITH(clang-resource-dir,
1136 AS_HELP_STRING([--with-clang-resource-dir],
1137 [Relative directory from the Clang binary for resource files]),,
1139 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1140 [Relative directory for resource files])
1142 AC_ARG_WITH(c-include-dirs,
1143 AS_HELP_STRING([--with-c-include-dirs],
1144 [Colon separated list of directories clang will search for headers]),,
1146 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1147 [Directories clang will search for headers])
1149 # Clang normally uses the system c++ headers and libraries. With this option,
1150 # clang will use the ones provided by a gcc installation instead. This option should
1151 # be passed the same value that was used with --prefix when configuring gcc.
1152 AC_ARG_WITH(gcc-toolchain,
1153 AS_HELP_STRING([--with-gcc-toolchain],
1154 [Directory where gcc is installed.]),,
1156 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1157 [Directory where gcc is installed.])
1159 AC_ARG_WITH(default-sysroot,
1160 AS_HELP_STRING([--with-default-sysroot],
1161 [Add --sysroot=<path> to all compiler invocations.]),,
1163 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1164 [Default <path> to all compiler invocations for --sysroot=<path>.])
1166 dnl Allow linking of LLVM with GPLv3 binutils code.
1167 AC_ARG_WITH(binutils-include,
1168 AS_HELP_STRING([--with-binutils-include],
1169 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1172 default) WITH_BINUTILS_INCDIR=default ;;
1173 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1174 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1176 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1177 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1178 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1179 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1180 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1184 dnl Specify the URL where bug reports should be submitted.
1185 AC_ARG_WITH(bug-report-url,
1186 AS_HELP_STRING([--with-bug-report-url],
1187 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1188 withval="http://llvm.org/bugs/")
1189 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1192 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1193 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1194 [--enable-terminfo],
1195 [Query the terminfo database if available (default is YES)]),
1196 [case "$enableval" in
1197 yes) llvm_cv_enable_terminfo="yes" ;;
1198 no) llvm_cv_enable_terminfo="no" ;;
1199 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1201 llvm_cv_enable_terminfo="yes")
1202 case "$llvm_cv_enable_terminfo" in
1203 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1204 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1207 dnl --enable-libedit: check whether the user wants to turn off libedit.
1208 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1210 [Use libedit if available (default is YES)]),
1211 [case "$enableval" in
1212 yes) llvm_cv_enable_libedit="yes" ;;
1213 no) llvm_cv_enable_libedit="no" ;;
1214 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1216 llvm_cv_enable_libedit="yes")
1218 dnl --enable-libffi : check whether the user wants to turn off libffi:
1219 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1220 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1221 [case "$enableval" in
1222 yes) llvm_cv_enable_libffi="yes" ;;
1223 no) llvm_cv_enable_libffi="no" ;;
1224 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1226 llvm_cv_enable_libffi=no)
1228 AC_ARG_WITH(internal-prefix,
1229 AS_HELP_STRING([--with-internal-prefix],
1230 [Installation directory for internal files]),,
1232 AC_SUBST(INTERNAL_PREFIX,[$withval])
1234 dnl===-----------------------------------------------------------------------===
1236 dnl=== SECTION 4: Check for programs we need and that they are the right version
1238 dnl===-----------------------------------------------------------------------===
1240 dnl Check for the tools that the makefiles require
1243 AC_PATH_PROG(NM, [nm], [nm])
1244 AC_PATH_PROG(CMP, [cmp], [cmp])
1245 AC_PATH_PROG(CP, [cp], [cp])
1246 AC_PATH_PROG(DATE, [date], [date])
1247 AC_PATH_PROG(FIND, [find], [find])
1248 AC_PATH_PROG(GREP, [grep], [grep])
1249 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1250 AC_PATH_PROG(MV, [mv], [mv])
1252 AC_CHECK_TOOL(AR, ar, false)
1253 AC_PATH_PROG(RM, [rm], [rm])
1254 AC_PATH_PROG(SED, [sed], [sed])
1255 AC_PATH_PROG(TAR, [tar], [gtar])
1256 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1258 dnl Looking for misc. graph plotting software
1259 AC_PATH_PROG(DOT, [dot], [echo dot])
1260 if test "$DOT" != "echo dot" ; then
1261 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1262 dnl If we're targeting for mingw we should emit windows paths, not msys
1263 if test "$llvm_cv_os_type" = "MingW" ; then
1264 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1266 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1267 [Define to path to dot program if found or 'echo dot' otherwise])
1270 dnl Find the install program
1272 dnl Prepend src dir to install path dir if it's a relative path
1273 dnl This is a hack for installs that take place in something other
1274 dnl than the top level.
1276 [[\\/$]]* | ?:[[\\/]]* ) ;;
1277 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1280 dnl Checks for documentation and testing tools that we can do without. If these
1281 dnl are not found then they are set to "true" which always succeeds but does
1282 dnl nothing. This just lets the build output show that we could have done
1283 dnl something if the tool was available.
1284 AC_PATH_PROG(BZIP2, [bzip2])
1285 AC_PATH_PROG(CAT, [cat])
1286 AC_PATH_PROG(DOXYGEN, [doxygen])
1287 AC_PATH_PROG(GROFF, [groff])
1288 AC_PATH_PROG(GZIPBIN, [gzip])
1289 AC_PATH_PROG(PDFROFF, [pdfroff])
1290 AC_PATH_PROG(ZIP, [zip])
1291 AC_PATH_PROG(GO, [go])
1292 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1293 AC_PATH_PROGS(GAS, [gas as])
1295 dnl Get the version of the linker in use.
1298 dnl Determine whether the linker supports the -R option.
1301 dnl Determine whether the compiler supports the -rdynamic option.
1302 AC_LINK_EXPORT_DYNAMIC
1304 dnl Determine whether the linker supports the --version-script option.
1305 AC_LINK_VERSION_SCRIPT
1307 AC_CHECK_HEADERS([errno.h])
1309 case "$llvm_cv_os_type" in
1310 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1311 Darwin) llvm_shlib_ext=.dylib ;;
1312 *) llvm_shlib_ext=.so ;;
1315 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1317 AC_MSG_CHECKING([tool compatibility])
1319 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1320 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1321 dnl to support those options.
1322 dnl "icc" emits gcc signatures
1323 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1335 if test "$GCC" != "yes" && test "$ICC" != "yes"
1337 AC_MSG_ERROR([gcc|icc required but not found])
1340 dnl Ensure that compilation tools are compatible with GCC extensions
1341 if test "$GXX" != "yes" && test "$IXX" != "yes"
1343 AC_MSG_ERROR([g++|clang++|icc required but not found])
1346 dnl Verify that GCC is version 3.0 or higher
1347 if test "$GCC" = "yes"
1352 #if !defined(__GNUC__) || __GNUC__ < 3
1353 #error Unsupported GCC version
1357 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1360 dnl Check for GNU Make. We use its extensions, so don't build without it
1361 if test -z "$llvm_cv_gnu_make_command"
1363 AC_MSG_ERROR([GNU Make required but not found])
1366 dnl Tool compatibility is okay if we make it here.
1369 dnl Check optional compiler flags.
1370 AC_MSG_CHECKING([optional compiler flags])
1371 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1372 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1373 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1375 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1376 dnl false positives, so disable it.
1378 NO_MAYBE_UNINITIALIZED=
1379 if test "$GXX" = "yes"
1381 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1382 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1383 dnl known to be uninitialized from cases which might be uninitialized. We
1384 dnl still want to catch the first kind of errors.
1385 if test -z "$NO_MAYBE_UNINITIALIZED"
1387 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1391 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1392 dnl -Wno-comment to the flags.
1394 llvm_cv_old_cxxflags="$CXXFLAGS"
1395 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1398 AC_LANG_SOURCE([[// Comment \o\
1400 int main() { return 0; }
1404 no_comment=-Wno-comment
1407 AC_SUBST(NO_COMMENT, [$no_comment])
1408 CXXFLAGS="$llvm_cv_old_cxxflags"
1410 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1412 AC_ARG_WITH([python],
1413 [AS_HELP_STRING([--with-python], [path to python])],
1414 [PYTHON="$withval"])
1416 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1417 AC_MSG_CHECKING([for python])
1418 AC_MSG_RESULT([user defined: $with_python])
1420 if test -n "$PYTHON" ; then
1421 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1424 AC_PATH_PROG([PYTHON], [python python2 python27],
1425 [AC_MSG_RESULT([not found])
1426 AC_MSG_ERROR([could not find python 2.7 or higher])])
1429 AC_MSG_CHECKING([for python >= 2.7])
1430 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1431 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1432 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1433 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1434 if test "$ac_python_version_major" -gt "2" || \
1435 (test "$ac_python_version_major" -eq "2" && \
1436 test "$ac_python_version_minor" -ge "7") ; then
1437 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1439 AC_MSG_RESULT([not found])
1440 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1443 dnl===-----------------------------------------------------------------------===
1445 dnl=== SECTION 5: Check for libraries
1447 dnl===-----------------------------------------------------------------------===
1450 if test "$llvm_cv_os_type" = "MingW" ; then
1451 AC_CHECK_LIB(imagehlp, main)
1452 AC_CHECK_LIB(psapi, main)
1453 AC_CHECK_LIB(shell32, main)
1456 dnl dlopen() is required for plugin support.
1457 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1458 [Define if dlopen() is available on this platform.]),
1459 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1461 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1462 dnl macros to detect whether clock_gettime is available, this just finds the
1463 dnl right libraries to link with.
1464 AC_SEARCH_LIBS(clock_gettime,rt)
1466 dnl The curses library is optional; used for querying terminal info
1467 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1468 dnl We need the has_color functionality in curses for it to be useful.
1469 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1470 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1471 [Define if the setupterm() function is supported this platform.]))
1474 dnl The libedit library is optional; used by lib/LineEditor
1475 if test "$llvm_cv_enable_libedit" = "yes" ; then
1476 AC_SEARCH_LIBS(el_init,edit,
1477 AC_DEFINE([HAVE_LIBEDIT],[1],
1478 [Define if libedit is available on this platform.]))
1481 dnl libffi is optional; used to call external functions from the interpreter
1482 if test "$llvm_cv_enable_libffi" = "yes" ; then
1483 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1484 [Define if libffi is available on this platform.]),
1485 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1488 dnl mallinfo is optional; the code can compile (minus features) without it
1489 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1490 [Define if mallinfo() is available on this platform.]))
1492 dnl pthread locking functions are optional - but llvm will not be thread-safe
1494 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1495 AC_CHECK_LIB(pthread, pthread_mutex_init)
1496 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1497 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1498 [Have pthread_mutex_lock]))
1499 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1500 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1501 [Have pthread_rwlock_init]))
1502 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1503 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1504 [Have pthread_getspecific]))
1507 dnl zlib is optional; used for compression/uncompression
1508 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1509 AC_CHECK_LIB(z, compress2)
1512 dnl Allow OProfile support for JIT output.
1513 AC_ARG_WITH(oprofile,
1514 AS_HELP_STRING([--with-oprofile=<prefix>],
1515 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1517 AC_SUBST(USE_OPROFILE, [1])
1519 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1521 AC_SUBST(USE_OPROFILE, [0]) ;;
1522 *) llvm_cv_oppath="${withval}/lib/oprofile"
1523 CPPFLAGS="-I${withval}/include";;
1525 case $llvm_cv_os_type in
1527 if test -n "$llvm_cv_oppath" ; then
1528 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1529 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1530 dnl libbfd is not included properly in libopagent in some Debian
1531 dnl versions. If libbfd isn't found at all, we assume opagent works
1533 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1534 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1535 echo "Error! You need to have libopagent around."
1538 AC_CHECK_HEADER([opagent.h], [], [
1539 echo "Error! You need to have opagent.h around."
1544 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1548 AC_SUBST(USE_OPROFILE, [0])
1550 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1551 [Define if we have the oprofile JIT-support library])
1553 dnl Enable support for Intel JIT Events API.
1554 AC_ARG_WITH(intel-jitevents,
1555 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1558 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1559 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1560 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1563 case $llvm_cv_os_type in
1564 Linux|Win32|Cygwin|MingW) ;;
1565 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1568 case "$llvm_cv_target_arch" in
1570 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1574 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1576 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1577 [Define if we have the Intel JIT API runtime support library])
1579 dnl Check for libxml2
1580 dnl Right now we're just checking for the existence, we could also check for a
1581 dnl particular version via --version on xml2-config
1582 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1584 AC_MSG_CHECKING(for libxml2 includes)
1585 if test "x$XML2CONFIG" = "x"; then
1586 AC_MSG_RESULT(xml2-config not found)
1588 LIBXML2_INC=`$XML2CONFIG --cflags`
1589 AC_MSG_RESULT($LIBXML2_INC)
1590 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1591 LIBXML2_LIBS="-lxml2"])
1593 AC_SUBST(LIBXML2_LIBS)
1594 AC_SUBST(LIBXML2_INC)
1596 dnl===-----------------------------------------------------------------------===
1598 dnl=== SECTION 6: Check for header files
1600 dnl===-----------------------------------------------------------------------===
1602 dnl First, use autoconf provided macros for specific headers that we need
1603 dnl We don't check for ancient stuff or things that are guaranteed to be there
1604 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1605 dnl Generally we're looking for POSIX headers.
1607 AC_HEADER_MMAP_ANONYMOUS
1613 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1614 AC_CHECK_HEADERS([cxxabi.h], [], [],
1615 [#include <stddef.h>
1619 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1620 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1621 AC_CHECK_HEADERS([utime.h])
1622 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1623 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1624 AC_CHECK_HEADERS([valgrind/valgrind.h])
1625 AC_CHECK_HEADERS([fenv.h])
1626 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1627 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1628 AC_CHECK_HEADERS(pthread.h,
1629 AC_SUBST(HAVE_PTHREAD, 1),
1630 AC_SUBST(HAVE_PTHREAD, 0))
1632 AC_SUBST(HAVE_PTHREAD, 0)
1634 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1635 AC_CHECK_HEADERS(zlib.h,
1636 AC_SUBST(HAVE_LIBZ, 1),
1637 AC_SUBST(HAVE_LIBZ, 0))
1639 AC_SUBST(HAVE_LIBZ, 0)
1642 dnl Try to find ffi.h.
1643 if test "$llvm_cv_enable_libffi" = "yes" ; then
1644 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1647 dnl Try to find Darwin specific crash reporting libraries.
1648 AC_CHECK_HEADERS([CrashReporterClient.h])
1650 dnl Try to find Darwin specific crash reporting global.
1651 AC_MSG_CHECKING([__crashreporter_info__])
1655 extern const char *__crashreporter_info__;
1657 __crashreporter_info__ = "test";
1663 AC_MSG_RESULT([yes])
1664 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1668 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1671 dnl===-----------------------------------------------------------------------===
1673 dnl=== SECTION 7: Check for types and structures
1675 dnl===-----------------------------------------------------------------------===
1680 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1682 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1683 AC_CHECK_TYPES([uint64_t],,
1684 AC_CHECK_TYPES([u_int64_t],,
1685 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1687 dnl===-----------------------------------------------------------------------===
1689 dnl=== SECTION 8: Check for specific functions needed
1691 dnl===-----------------------------------------------------------------------===
1693 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1694 AC_CHECK_FUNCS([powf fmodf strtof round ])
1695 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1696 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1697 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1698 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1699 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1700 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1701 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1702 AC_CHECK_FUNCS([futimes futimens])
1706 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1707 AC_CHECK_DECLS([arc4random])
1709 dnl Check the declaration "Secure API" on Windows environments.
1710 AC_CHECK_DECLS([strerror_s])
1712 dnl Check symbols in libgcc.a for JIT on Mingw.
1713 if test "$llvm_cv_os_type" = "MingW" ; then
1714 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1715 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1716 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1717 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1719 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1720 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1721 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1722 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1723 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1724 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1725 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1726 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1727 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1728 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1730 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1731 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1734 dnl Check Win32 API EnumerateLoadedModules.
1735 if test "$llvm_cv_os_type" = "MingW" ; then
1736 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1740 #include <windows.h>
1741 #include <imagehlp.h>
1742 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1743 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1747 AC_MSG_RESULT([yes])
1748 llvm_cv_win32_elmcb_pcstr="PCSTR"
1752 llvm_cv_win32_elmcb_pcstr="PSTR"
1754 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1757 dnl Check for variations in the Standard C++ library and STL. These macros are
1758 dnl provided by LLVM in the autoconf/m4 directory.
1762 dnl Check for mmap support.We also need to know if /dev/zero is required to
1763 dnl be opened for allocating RWX memory.
1764 dnl Make sure we aren't attempting to configure for an unknown system
1765 if test "$llvm_cv_platform_type" = "Unix" ; then
1768 AC_NEED_DEV_ZERO_FOR_MMAP
1770 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1772 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1774 if test "$ac_cv_func_mmap_file" = "no"
1776 AC_MSG_WARN([mmap() of files required but not found])
1780 dnl atomic builtins are required for threading support.
1781 AC_MSG_CHECKING(for GCC atomic builtins)
1782 dnl Since we'll be using these atomic builtins in C++ files we should test
1783 dnl the C++ compiler.
1789 volatile unsigned long val = 1;
1790 __sync_synchronize();
1791 __sync_val_compare_and_swap(&val, 1, 0);
1792 __sync_add_and_fetch(&val, 1);
1793 __sync_sub_and_fetch(&val, 1);
1799 AC_MSG_RESULT([yes])
1800 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1804 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1805 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1809 dnl===-----------------------------------------------------------------------===
1811 dnl=== SECTION 9: Additional checks, variables, etc.
1813 dnl===-----------------------------------------------------------------------===
1815 dnl Handle 32-bit linux systems running a 64-bit kernel.
1816 dnl This has to come after section 4 because it invokes the compiler.
1817 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1819 if test "$llvm_cv_linux_mixed" = "yes"; then
1820 llvm_cv_target_arch="x86"
1825 dnl Check whether __dso_handle is present
1826 AC_CHECK_FUNCS([__dso_handle])
1828 dnl Propagate the shared library extension that the libltdl checks did to
1829 dnl the Makefiles so we can use it there too
1830 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
1832 dnl Translate the various configuration directories and other basic
1833 dnl information into substitutions that will end up in Makefile.config.in
1834 dnl that these configured values can be used by the makefiles
1835 if test "${prefix}" = "NONE" ; then
1838 eval LLVM_PREFIX="${prefix}";
1839 eval LLVM_BINDIR="${prefix}/bin";
1840 eval LLVM_DATADIR="${prefix}/share/llvm";
1841 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1842 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1843 eval LLVM_INCLUDEDIR="${prefix}/include";
1844 eval LLVM_INFODIR="${prefix}/info";
1845 eval LLVM_MANDIR="${prefix}/man";
1846 LLVM_CONFIGTIME=`date`
1847 AC_SUBST(LLVM_PREFIX)
1848 AC_SUBST(LLVM_BINDIR)
1849 AC_SUBST(LLVM_DATADIR)
1850 AC_SUBST(LLVM_DOCSDIR)
1851 AC_SUBST(LLVM_ETCDIR)
1852 AC_SUBST(LLVM_INCLUDEDIR)
1853 AC_SUBST(LLVM_INFODIR)
1854 AC_SUBST(LLVM_MANDIR)
1855 AC_SUBST(LLVM_CONFIGTIME)
1857 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1858 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1859 LLVM_CONFIGTIME="(timestamp not enabled)"
1862 dnl Place the various directories into the config.h file as #defines so that we
1863 dnl can know about the installation paths within LLVM.
1864 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1865 [Installation prefix directory])
1866 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1867 [Installation directory for binary executables])
1868 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1869 [Installation directory for data files])
1870 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1871 [Installation directory for documentation])
1872 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1873 [Installation directory for config files])
1874 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1875 [Installation directory for include files])
1876 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1877 [Installation directory for .info files])
1878 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1879 [Installation directory for man pages])
1880 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1881 [Time at which LLVM was configured])
1882 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1883 [Host triple LLVM will be executed on])
1884 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1885 [Target triple LLVM will generate code for by default])
1887 dnl Determine which bindings to build.
1888 if test "$BINDINGS_TO_BUILD" = auto ; then
1889 BINDINGS_TO_BUILD=""
1890 if test "x$OCAMLFIND" != x ; then
1891 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1893 if test "x$GO" != x ; then
1894 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1895 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
1899 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1901 dnl Do any work necessary to ensure that bindings have what they need.
1902 binding_prereqs_failed=0
1903 for a_binding in $BINDINGS_TO_BUILD ; do
1904 case "$a_binding" in
1906 if test "x$OCAMLFIND" = x ; then
1907 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
1908 binding_prereqs_failed=1
1911 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
1916 AC_SUBST(HAVE_OCAMLOPT)
1918 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
1919 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
1920 binding_prereqs_failed=1
1923 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
1927 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
1928 dnl oUnit is optional!
1930 AC_SUBST(HAVE_OCAML_OUNIT)
1932 if test "x$with_ocaml_libdir" != xauto ; then
1933 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1935 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
1936 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1938 # ocaml stdlib is beneath our prefix; use stdlib
1939 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1941 # ocaml stdlib is outside our prefix; use libdir/ocaml
1942 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1947 if test "x$GO" = x ; then
1948 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
1949 binding_prereqs_failed=1
1951 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1954 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
1955 binding_prereqs_failed=1
1961 if test "$binding_prereqs_failed" = 1 ; then
1962 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1965 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1966 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1968 dnl Determine linker rpath flag
1969 if test "$llvm_cv_link_use_r" = "yes" ; then
1976 dnl Determine linker rdynamic flag
1977 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1978 RDYNAMIC="-rdynamic"
1984 dnl===-----------------------------------------------------------------------===
1986 dnl=== SECTION 10: Specify the output files and generate it
1988 dnl===-----------------------------------------------------------------------===
1990 dnl Configure header files
1991 dnl WARNING: dnl If you add or remove any of the following config headers, then
1992 dnl you MUST also update Makefile so that the variable FilesToConfig
1993 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1994 dnl files can be updated automatically when their *.in sources change.
1995 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1996 AH_TOP([#ifndef CONFIG_H
2000 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2001 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2002 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2003 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2004 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2006 dnl Configure the makefile's configuration data
2007 AC_CONFIG_FILES([Makefile.config])
2009 dnl Configure the RPM spec file for LLVM
2010 AC_CONFIG_FILES([llvm.spec])
2012 dnl Configure doxygen's configuration file
2013 AC_CONFIG_FILES([docs/doxygen.cfg])
2015 dnl Configure clang, if present
2016 if test "${clang_src_root}" = ""; then
2017 clang_src_root="$srcdir/tools/clang"
2019 if test -f ${clang_src_root}/README.txt; then
2020 dnl Clang supports build systems which use the multilib libdir suffix.
2021 dnl The autoconf system doesn't support this so stub out that variable.
2022 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2023 [Multilib suffix for libdir.])
2025 dnl Use variables to stay under 80 columns.
2026 configh="include/clang/Config/config.h"
2027 doxy="docs/doxygen.cfg"
2028 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2029 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2032 dnl OCaml findlib META file
2033 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2035 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2036 test "x$program_prefix" = "xNONE" && program_prefix=""
2037 AC_SUBST([program_prefix])
2040 dnl Do special configuration of Makefiles
2041 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2042 AC_CONFIG_MAKEFILE(Makefile)
2043 AC_CONFIG_MAKEFILE(Makefile.common)
2044 AC_CONFIG_MAKEFILE(examples/Makefile)
2045 AC_CONFIG_MAKEFILE(lib/Makefile)
2046 AC_CONFIG_MAKEFILE(test/Makefile)
2047 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2048 AC_CONFIG_MAKEFILE(unittests/Makefile)
2049 AC_CONFIG_MAKEFILE(tools/Makefile)
2050 AC_CONFIG_MAKEFILE(utils/Makefile)
2051 AC_CONFIG_MAKEFILE(projects/Makefile)
2052 AC_CONFIG_MAKEFILE(bindings/Makefile)
2053 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2055 dnl Finally, crank out the output