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
542 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
543 llvm_cv_old_cxxflags="$CXXFLAGS"
544 CXXFLAGS="$CXXFLAGS -std=c++0x"
545 AC_LINK_IFELSE([AC_LANG_SOURCE([[
547 std::atomic<float> x(0.0f);
548 int main() { return (float)x; }
550 [AC_MSG_RESULT([yes])],
553 We detected a missing feature in the standard C++ library that was known to be
554 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
555 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
556 than 4.7. You will need to update your system and ensure Clang uses the newer
559 If this error is incorrect or you need to force things to work, you may pass
560 '--disable-compiler-version-checks' to configure to bypass this test.])])
561 CXXFLAGS="$llvm_cv_old_cxxflags"
564 AC_MSG_CHECKING([whether GCC is new enough])
565 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
566 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
567 #error This version of GCC is too old to build LLVM
570 [AC_MSG_RESULT([yes])],
573 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
574 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
575 bypass these sanity checks.])])
583 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
587 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
589 AS_HELP_STRING([--enable-cxx11],
590 [Use c++11 if available (default is NO)]),,
593 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
594 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
595 default) AC_SUBST(ENABLE_CXX11,[0]);;
596 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
599 dnl --enable-fission : check whether or not to use -gsplit-dwarf on the command
601 AC_ARG_ENABLE(split-dwarf,
602 AS_HELP_STRING([--enable-split-dwarf],
603 [Use split-dwarf if available (default is NO)]),,
606 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
607 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
608 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
609 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
612 dnl --enable-clang-arcmt: check whether to enable clang arcmt
614 AC_ARG_ENABLE(clang-arcmt,
615 AS_HELP_STRING([--enable-clang-arcmt],
616 [Enable building of clang ARCMT (default is YES)]),
617 clang_arcmt="$enableval",
620 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
621 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
622 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
623 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
626 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
627 clang_static_analyzer="yes"
628 AC_ARG_ENABLE(clang-static-analyzer,
629 AS_HELP_STRING([--enable-clang-static-analyzer],
630 [Enable building of clang Static Analyzer (default is YES)]),
631 clang_static_analyzer="$enableval",
634 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
636 if test ${clang_arcmt} != "no" ; then
637 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
639 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
641 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
642 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
645 dnl --enable-clang-rewriter: check whether to enable clang rewriter
646 AC_ARG_ENABLE(clang-rewriter,
647 AS_HELP_STRING([--enable-clang-rewriter],
648 [Enable building of clang rewriter (default is YES)]),,
651 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
653 if test ${clang_arcmt} != "no" ; then
654 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
656 if test ${clang_static_analyzer} != "no" ; then
657 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
659 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
661 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
662 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
665 dnl --enable-optimized : check whether they want to do an optimized build:
666 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
667 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
668 if test ${enableval} = "no" ; then
669 AC_SUBST(ENABLE_OPTIMIZED,[[]])
671 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
674 dnl --enable-profiling : check whether they want to do a profile build:
675 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
676 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
677 if test ${enableval} = "no" ; then
678 AC_SUBST(ENABLE_PROFILING,[[]])
680 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
683 dnl --enable-assertions : check whether they want to turn on assertions or not:
684 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
685 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
686 if test ${enableval} = "yes" ; then
687 AC_SUBST(DISABLE_ASSERTIONS,[[]])
689 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
692 dnl --enable-werror : check whether we want Werror on by default
693 AC_ARG_ENABLE(werror,AS_HELP_STRING(
694 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
696 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
697 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
698 default) AC_SUBST(ENABLE_WERROR,[0]);;
699 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
702 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
703 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
704 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
705 if test ${enableval} = "yes" ; then
706 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
707 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
709 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
710 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
713 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
714 AC_ARG_ENABLE(debug-runtime,
715 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
716 if test ${enableval} = "no" ; then
717 AC_SUBST(DEBUG_RUNTIME,[[]])
719 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
722 dnl --enable-debug-symbols : should even optimized compiler libraries
723 dnl have debug symbols?
724 AC_ARG_ENABLE(debug-symbols,
725 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)
726 if test ${enableval} = "no" ; then
727 AC_SUBST(DEBUG_SYMBOLS,[[]])
729 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
732 dnl --enable-keep-symbols : do not strip installed executables
733 AC_ARG_ENABLE(keep-symbols,
734 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
735 if test ${enableval} = "no" ; then
736 AC_SUBST(KEEP_SYMBOLS,[[]])
738 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
741 dnl --enable-jit: check whether they want to enable the jit
743 AS_HELP_STRING(--enable-jit,
744 [Enable Just In Time Compiling (default is YES)]),,
746 if test ${enableval} = "no"
750 case "$llvm_cv_target_arch" in
751 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
752 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
753 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
754 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
755 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
756 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
757 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
758 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
759 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
760 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
761 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
762 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
763 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
767 dnl Allow enablement of building and installing docs
769 AS_HELP_STRING([--enable-docs],
770 [Build documents (default is YES)]),,
773 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
774 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
775 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
776 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
779 dnl Allow enablement of doxygen generated documentation
780 AC_ARG_ENABLE(doxygen,
781 AS_HELP_STRING([--enable-doxygen],
782 [Build doxygen documentation (default is NO)]),,
785 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
786 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
787 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
788 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
791 dnl Allow disablement of threads
792 AC_ARG_ENABLE(threads,
793 AS_HELP_STRING([--enable-threads],
794 [Use threads if available (default is YES)]),,
797 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
798 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
799 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
800 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
802 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
803 [Define if threads enabled])
805 dnl Allow disablement of pthread.h
806 AC_ARG_ENABLE(pthreads,
807 AS_HELP_STRING([--enable-pthreads],
808 [Use pthreads if available (default is YES)]),,
811 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
812 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
813 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
814 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
817 dnl Allow disablement of zlib
819 AS_HELP_STRING([--enable-zlib],
820 [Use zlib for compression/decompression if
821 available (default is YES)]),,
824 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
825 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
826 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
827 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
829 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
830 [Define if zlib is enabled])
832 dnl Allow building without position independent code
834 AS_HELP_STRING([--enable-pic],
835 [Build LLVM with Position Independent Code (default is YES)]),,
838 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
839 no) AC_SUBST(ENABLE_PIC,[0]) ;;
840 default) AC_SUBST(ENABLE_PIC,[1]) ;;
841 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
843 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
844 [Define if position independent code is enabled])
846 dnl Allow building a shared library and linking tools against it.
847 AC_ARG_ENABLE(shared,
848 AS_HELP_STRING([--enable-shared],
849 [Build a shared library and link tools against it (default is NO)]),,
852 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
853 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
854 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
855 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
858 dnl Allow libstdc++ is embedded in LLVM.dll.
859 AC_ARG_ENABLE(embed-stdcxx,
860 AS_HELP_STRING([--enable-embed-stdcxx],
861 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
864 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
865 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
866 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
867 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
870 dnl Enable embedding timestamp information into build.
871 AC_ARG_ENABLE(timestamps,
872 AS_HELP_STRING([--enable-timestamps],
873 [Enable embedding timestamp information in build (default is YES)]),,
876 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
877 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
878 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
879 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
881 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
882 [Define if timestamp information (e.g., __DATE__) is allowed])
884 dnl Enable support for showing backtraces.
885 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
886 [--enable-backtraces],
887 [Enable embedding backtraces on crash (default is YES)]),
888 [case "$enableval" in
889 yes) llvm_cv_enable_backtraces="yes" ;;
890 no) llvm_cv_enable_backtraces="no" ;;
891 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
893 llvm_cv_enable_backtraces="yes")
894 if test "$llvm_cv_enable_backtraces" = "yes" ; then
895 AC_DEFINE([ENABLE_BACKTRACES],[1],
896 [Define if you want backtraces on crash])
899 dnl Enable installing platform specific signal handling overrides, for improved
900 dnl CrashRecovery support or interaction with crash reporting software. This
901 dnl support may be inappropriate for some clients embedding LLVM as a library.
902 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
903 [--enable-crash-overrides],
904 [Enable crash handling overrides (default is YES)]),
905 [case "$enableval" in
906 yes) llvm_cv_enable_crash_overrides="yes" ;;
907 no) llvm_cv_enable_crash_overrides="no" ;;
908 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
910 llvm_cv_enable_crash_overrides="yes")
911 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
912 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
913 [Define to enable crash handling overrides])
916 dnl Allow specific targets to be specified for building (or not)
918 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
919 [Build specific host targets: all or target1,target2,... Valid targets are:
920 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
921 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
923 if test "$enableval" = host-only ; then
927 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" ;;
928 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
930 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
931 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
932 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
933 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
934 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
935 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
936 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
937 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
938 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
939 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
940 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
941 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
942 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
943 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
944 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
945 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
946 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
947 host) case "$llvm_cv_target_arch" in
948 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
949 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
950 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
951 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
952 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
953 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
954 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
955 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
956 MSP430) TARGETS_TO_BUILD="MSP430 $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 *) AC_MSG_ERROR([Can not set target to build]) ;;
962 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
968 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
969 [Build experimental host targets: disable or target1,target2,...
970 (default=disable)]),,
973 if test ${enableval} != "disable"
975 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
978 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
980 dnl Determine whether we are building LLVM support for the native architecture.
981 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
982 for a_target in $TARGETS_TO_BUILD; do
983 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
984 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
985 [LLVM architecture name for the native architecture, if available])
986 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
987 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
988 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
989 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
990 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
991 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
993 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
994 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
996 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
997 [LLVM name for the native Target init function, if available])
998 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
999 [LLVM name for the native TargetInfo init function, if available])
1000 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1001 [LLVM name for the native target MC init function, if available])
1002 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1003 [LLVM name for the native AsmPrinter init function, if available])
1004 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1005 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1006 [LLVM name for the native AsmParser init function, if available])
1008 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1009 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1010 [LLVM name for the native Disassembler init function, if available])
1015 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1016 dnl target feature def files.
1017 LLVM_ENUM_TARGETS=""
1018 LLVM_ENUM_ASM_PRINTERS=""
1019 LLVM_ENUM_ASM_PARSERS=""
1020 LLVM_ENUM_DISASSEMBLERS=""
1021 for target_to_build in $TARGETS_TO_BUILD; do
1022 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1023 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1024 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1026 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1027 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1029 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1030 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1033 AC_SUBST(LLVM_ENUM_TARGETS)
1034 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1035 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1036 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1038 dnl Override the option to use for optimized builds.
1039 AC_ARG_WITH(optimize-option,
1040 AS_HELP_STRING([--with-optimize-option],
1041 [Select the compiler options to use for optimized builds]),,
1043 AC_MSG_CHECKING([optimization flags])
1046 case "$llvm_cv_os_type" in
1047 FreeBSD) optimize_option=-O2 ;;
1048 MingW) optimize_option=-O2 ;;
1049 *) optimize_option=-O3 ;;
1051 *) optimize_option="$withval" ;;
1053 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1054 AC_MSG_RESULT([$optimize_option])
1056 dnl Specify extra build options
1057 AC_ARG_WITH(extra-options,
1058 AS_HELP_STRING([--with-extra-options],
1059 [Specify additional options to compile LLVM with]),,
1062 default) EXTRA_OPTIONS= ;;
1063 *) EXTRA_OPTIONS=$withval ;;
1065 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1067 dnl Specify extra linker build options
1068 AC_ARG_WITH(extra-ld-options,
1069 AS_HELP_STRING([--with-extra-ld-options],
1070 [Specify additional options to link LLVM with]),,
1073 default) EXTRA_LD_OPTIONS= ;;
1074 *) EXTRA_LD_OPTIONS=$withval ;;
1076 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1078 dnl Allow specific bindings to be specified for building (or not)
1079 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1080 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1082 BINDINGS_TO_BUILD=""
1083 case "$enableval" in
1084 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1085 all ) BINDINGS_TO_BUILD="ocaml" ;;
1086 none | no) BINDINGS_TO_BUILD="" ;;
1087 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1088 case "$a_binding" in
1089 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1090 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1096 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1097 dnl script for bindings/ocaml/configure, except that its auto value depends on
1098 dnl OCAMLC, which is found here to support tests.
1099 AC_ARG_WITH([ocaml-libdir],
1100 [AS_HELP_STRING([--with-ocaml-libdir],
1101 [Specify install location for ocaml bindings (default is stdlib)])],
1105 auto) with_ocaml_libdir="$withval" ;;
1106 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1107 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1110 AC_ARG_WITH(clang-srcdir,
1111 AS_HELP_STRING([--with-clang-srcdir],
1112 [Directory to the out-of-tree Clang source]),,
1115 -) clang_src_root="" ;;
1116 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1117 *) clang_src_root="$ac_pwd/$withval" ;;
1119 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1121 AC_ARG_WITH(clang-resource-dir,
1122 AS_HELP_STRING([--with-clang-resource-dir],
1123 [Relative directory from the Clang binary for resource files]),,
1125 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1126 [Relative directory for resource files])
1128 AC_ARG_WITH(c-include-dirs,
1129 AS_HELP_STRING([--with-c-include-dirs],
1130 [Colon separated list of directories clang will search for headers]),,
1132 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1133 [Directories clang will search for headers])
1135 # Clang normally uses the system c++ headers and libraries. With this option,
1136 # clang will use the ones provided by a gcc installation instead. This option should
1137 # be passed the same value that was used with --prefix when configuring gcc.
1138 AC_ARG_WITH(gcc-toolchain,
1139 AS_HELP_STRING([--with-gcc-toolchain],
1140 [Directory where gcc is installed.]),,
1142 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1143 [Directory where gcc is installed.])
1145 AC_ARG_WITH(default-sysroot,
1146 AS_HELP_STRING([--with-default-sysroot],
1147 [Add --sysroot=<path> to all compiler invocations.]),,
1149 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1150 [Default <path> to all compiler invocations for --sysroot=<path>.])
1152 dnl Allow linking of LLVM with GPLv3 binutils code.
1153 AC_ARG_WITH(binutils-include,
1154 AS_HELP_STRING([--with-binutils-include],
1155 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1158 default) WITH_BINUTILS_INCDIR=default ;;
1159 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1160 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1162 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1163 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1164 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1165 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1166 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1170 dnl Specify the URL where bug reports should be submitted.
1171 AC_ARG_WITH(bug-report-url,
1172 AS_HELP_STRING([--with-bug-report-url],
1173 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1174 withval="http://llvm.org/bugs/")
1175 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1178 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1179 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1180 [--enable-terminfo],
1181 [Query the terminfo database if available (default is YES)]),
1182 [case "$enableval" in
1183 yes) llvm_cv_enable_terminfo="yes" ;;
1184 no) llvm_cv_enable_terminfo="no" ;;
1185 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1187 llvm_cv_enable_terminfo="yes")
1189 dnl --enable-libffi : check whether the user wants to turn off libffi:
1190 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1191 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1192 [case "$enableval" in
1193 yes) llvm_cv_enable_libffi="yes" ;;
1194 no) llvm_cv_enable_libffi="no" ;;
1195 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1197 llvm_cv_enable_libffi=no)
1199 AC_ARG_WITH(internal-prefix,
1200 AS_HELP_STRING([--with-internal-prefix],
1201 [Installation directory for internal files]),,
1203 AC_SUBST(INTERNAL_PREFIX,[$withval])
1205 dnl===-----------------------------------------------------------------------===
1207 dnl=== SECTION 4: Check for programs we need and that they are the right version
1209 dnl===-----------------------------------------------------------------------===
1214 dnl Check for the tools that the makefiles require
1217 AC_PATH_PROG(CMP, [cmp], [cmp])
1218 AC_PATH_PROG(CP, [cp], [cp])
1219 AC_PATH_PROG(DATE, [date], [date])
1220 AC_PATH_PROG(FIND, [find], [find])
1221 AC_PATH_PROG(GREP, [grep], [grep])
1222 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1223 AC_PATH_PROG(MV, [mv], [mv])
1225 AC_CHECK_TOOL(AR, ar, false)
1226 AC_PATH_PROG(RM, [rm], [rm])
1227 AC_PATH_PROG(SED, [sed], [sed])
1228 AC_PATH_PROG(TAR, [tar], [gtar])
1229 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1231 dnl Looking for misc. graph plotting software
1232 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1233 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1234 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1235 dnl If we're targeting for mingw we should emit windows paths, not msys
1236 if test "$llvm_cv_os_type" = "MingW" ; then
1237 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1239 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1240 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1242 AC_PATH_PROG(DOT, [dot], [echo dot])
1243 if test "$DOT" != "echo dot" ; then
1244 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1245 dnl If we're targeting for mingw we should emit windows paths, not msys
1246 if test "$llvm_cv_os_type" = "MingW" ; then
1247 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1249 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1250 [Define to path to dot program if found or 'echo dot' otherwise])
1252 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1253 if test "$FDP" != "echo fdp" ; then
1254 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1255 dnl If we're targeting for mingw we should emit windows paths, not msys
1256 if test "$llvm_cv_os_type" = "MingW" ; then
1257 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1259 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1260 [Define to path to fdp program if found or 'echo fdp' otherwise])
1262 AC_PATH_PROG(NEATO, [neato], [echo neato])
1263 if test "$NEATO" != "echo neato" ; then
1264 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1265 dnl If we're targeting for mingw we should emit windows paths, not msys
1266 if test "$llvm_cv_os_type" = "MingW" ; then
1267 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1269 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1270 [Define to path to neato program if found or 'echo neato' otherwise])
1272 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1273 if test "$TWOPI" != "echo twopi" ; then
1274 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1275 dnl If we're targeting for mingw we should emit windows paths, not msys
1276 if test "$llvm_cv_os_type" = "MingW" ; then
1277 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1279 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1280 [Define to path to twopi program if found or 'echo twopi' otherwise])
1282 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1283 if test "$CIRCO" != "echo circo" ; then
1284 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1285 dnl If we're targeting for mingw we should emit windows paths, not msys
1286 if test "$llvm_cv_os_type" = "MingW" ; then
1287 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1289 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1290 [Define to path to circo program if found or 'echo circo' otherwise])
1292 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1293 if test "$GV" != "echo gv" ; then
1294 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1295 dnl If we're targeting for mingw we should emit windows paths, not msys
1296 if test "$llvm_cv_os_type" = "MingW" ; then
1297 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1299 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1300 [Define to path to gv program if found or 'echo gv' otherwise])
1302 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1303 if test "$DOTTY" != "echo dotty" ; then
1304 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1305 dnl If we're targeting for mingw we should emit windows paths, not msys
1306 if test "$llvm_cv_os_type" = "MingW" ; then
1307 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1309 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1310 [Define to path to dotty program if found or 'echo dotty' otherwise])
1312 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1313 if test "$XDOT" != "echo xdot" ; then
1314 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1315 dnl If we're targeting for mingw we should emit windows paths, not msys
1316 if test "$llvm_cv_os_type" = "MingW" ; then
1317 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1319 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1320 [Define to path to xdot program if found or 'echo xdot' otherwise])
1323 dnl Find the install program
1325 dnl Prepend src dir to install path dir if it's a relative path
1326 dnl This is a hack for installs that take place in something other
1327 dnl than the top level.
1329 [[\\/$]]* | ?:[[\\/]]* ) ;;
1330 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1333 dnl Checks for documentation and testing tools that we can do without. If these
1334 dnl are not found then they are set to "true" which always succeeds but does
1335 dnl nothing. This just lets the build output show that we could have done
1336 dnl something if the tool was available.
1337 AC_PATH_PROG(BZIP2, [bzip2])
1338 AC_PATH_PROG(CAT, [cat])
1339 AC_PATH_PROG(DOXYGEN, [doxygen])
1340 AC_PATH_PROG(GROFF, [groff])
1341 AC_PATH_PROG(GZIPBIN, [gzip])
1342 AC_PATH_PROG(PDFROFF, [pdfroff])
1343 AC_PATH_PROG(ZIP, [zip])
1344 AC_PATH_PROGS(OCAMLC, [ocamlc])
1345 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1346 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1347 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1348 AC_PATH_PROGS(GAS, [gas as])
1350 dnl Get the version of the linker in use.
1353 dnl Determine whether the linker supports the -R option.
1356 dnl Determine whether the compiler supports the -rdynamic option.
1357 AC_LINK_EXPORT_DYNAMIC
1359 dnl Determine whether the linker supports the --version-script option.
1360 AC_LINK_VERSION_SCRIPT
1362 dnl Check for libtool and the library that has dlopen function (which must come
1363 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1368 AC_MSG_CHECKING([tool compatibility])
1370 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1371 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1372 dnl to support those options.
1373 dnl "icc" emits gcc signatures
1374 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1386 if test "$GCC" != "yes" && test "$ICC" != "yes"
1388 AC_MSG_ERROR([gcc|icc required but not found])
1391 dnl Ensure that compilation tools are compatible with GCC extensions
1392 if test "$GXX" != "yes" && test "$IXX" != "yes"
1394 AC_MSG_ERROR([g++|clang++|icc required but not found])
1397 dnl Verify that GCC is version 3.0 or higher
1398 if test "$GCC" = "yes"
1403 #if !defined(__GNUC__) || __GNUC__ < 3
1404 #error Unsupported GCC version
1408 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1411 dnl Check for GNU Make. We use its extensions, so don't build without it
1412 if test -z "$llvm_cv_gnu_make_command"
1414 AC_MSG_ERROR([GNU Make required but not found])
1417 dnl Tool compatibility is okay if we make it here.
1420 dnl Check optional compiler flags.
1421 AC_MSG_CHECKING([optional compiler flags])
1422 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1423 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1424 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1426 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1427 dnl false positives, so disable it.
1429 NO_MAYBE_UNINITIALIZED=
1430 if test "$GXX" = "yes"
1432 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1433 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1434 dnl known to be uninitialized from cases which might be uninitialized. We
1435 dnl still want to catch the first kind of errors.
1436 if test -z "$NO_MAYBE_UNINITIALIZED"
1438 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1441 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1443 AC_ARG_WITH([python],
1444 [AS_HELP_STRING([--with-python], [path to python])],
1445 [PYTHON="$withval"])
1447 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1448 AC_MSG_CHECKING([for python])
1449 AC_MSG_RESULT([user defined: $with_python])
1451 if test -n "$PYTHON" ; then
1452 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1455 AC_PATH_PROG([PYTHON], [python python2 python26],
1456 [AC_MSG_RESULT([not found])
1457 AC_MSG_ERROR([could not find python 2.5 or higher])])
1460 AC_MSG_CHECKING([for python >= 2.5])
1461 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1462 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1463 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1464 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1465 if test "$ac_python_version_major" -gt "2" || \
1466 (test "$ac_python_version_major" -eq "2" && \
1467 test "$ac_python_version_minor" -ge "5") ; then
1468 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1470 AC_MSG_RESULT([not found])
1471 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1474 dnl===-----------------------------------------------------------------------===
1476 dnl=== SECTION 5: Check for libraries
1478 dnl===-----------------------------------------------------------------------===
1481 if test "$llvm_cv_os_type" = "MingW" ; then
1482 AC_CHECK_LIB(imagehlp, main)
1483 AC_CHECK_LIB(psapi, main)
1484 AC_CHECK_LIB(shell32, main)
1487 dnl dlopen() is required for plugin support.
1488 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1489 [Define if dlopen() is available on this platform.]),
1490 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1492 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1493 dnl macros to detect whether clock_gettime is available, this just finds the
1494 dnl right libraries to link with.
1495 AC_SEARCH_LIBS(clock_gettime,rt)
1497 dnl The curses library is optional; used for querying terminal info
1498 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1499 dnl We need the has_color functionality in curses for it to be useful.
1500 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1501 AC_DEFINE([HAVE_TERMINFO],[1],
1502 [Define if the setupterm() function is supported this platform.]))
1505 dnl libffi is optional; used to call external functions from the interpreter
1506 if test "$llvm_cv_enable_libffi" = "yes" ; then
1507 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1508 [Define if libffi is available on this platform.]),
1509 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1512 dnl mallinfo is optional; the code can compile (minus features) without it
1513 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1514 [Define if mallinfo() is available on this platform.]))
1516 dnl pthread locking functions are optional - but llvm will not be thread-safe
1518 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1519 AC_CHECK_LIB(pthread, pthread_mutex_init)
1520 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1521 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1522 [Have pthread_mutex_lock]))
1523 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1524 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1525 [Have pthread_rwlock_init]))
1526 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1527 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1528 [Have pthread_getspecific]))
1531 dnl zlib is optional; used for compression/uncompression
1532 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1533 AC_CHECK_LIB(z, compress2)
1536 dnl Allow extra x86-disassembler library
1538 AS_HELP_STRING([--with-udis86=<path>],
1539 [Use udis86 external x86 disassembler library]),
1541 AC_SUBST(USE_UDIS86, [1])
1544 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1546 AC_CHECK_LIB(udis86, ud_init, [], [
1547 echo "Error! You need to have libudis86 around."
1551 AC_SUBST(USE_UDIS86, [0]))
1552 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1553 [Define if use udis86 library])
1555 dnl Allow OProfile support for JIT output.
1556 AC_ARG_WITH(oprofile,
1557 AS_HELP_STRING([--with-oprofile=<prefix>],
1558 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1560 AC_SUBST(USE_OPROFILE, [1])
1562 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1564 AC_SUBST(USE_OPROFILE, [0]) ;;
1565 *) llvm_cv_oppath="${withval}/lib/oprofile"
1566 CPPFLAGS="-I${withval}/include";;
1568 case $llvm_cv_os_type in
1570 if test -n "$llvm_cv_oppath" ; then
1571 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1572 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1573 dnl libbfd is not included properly in libopagent in some Debian
1574 dnl versions. If libbfd isn't found at all, we assume opagent works
1576 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1577 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1578 echo "Error! You need to have libopagent around."
1581 AC_CHECK_HEADER([opagent.h], [], [
1582 echo "Error! You need to have opagent.h around."
1587 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1591 AC_SUBST(USE_OPROFILE, [0])
1593 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1594 [Define if we have the oprofile JIT-support library])
1596 dnl Enable support for Intel JIT Events API.
1597 AC_ARG_WITH(intel-jitevents,
1598 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1601 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1602 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1603 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1606 case $llvm_cv_os_type in
1607 Linux|Win32|Cygwin|MingW) ;;
1608 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1611 case "$llvm_cv_target_arch" in
1613 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1617 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1619 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1620 [Define if we have the Intel JIT API runtime support library])
1622 dnl Check for libxml2
1623 dnl Right now we're just checking for the existence, we could also check for a
1624 dnl particular version via --version on xml2-config
1625 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1627 AC_MSG_CHECKING(for libxml2 includes)
1628 if test "x$XML2CONFIG" = "x"; then
1629 AC_MSG_RESULT(xml2-config not found)
1631 LIBXML2_INC=`$XML2CONFIG --cflags`
1632 AC_MSG_RESULT($LIBXML2_INC)
1633 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1634 LIBXML2_LIBS="-lxml2"])
1636 AC_SUBST(LIBXML2_LIBS)
1637 AC_SUBST(LIBXML2_INC)
1639 dnl===-----------------------------------------------------------------------===
1641 dnl=== SECTION 6: Check for header files
1643 dnl===-----------------------------------------------------------------------===
1645 dnl First, use autoconf provided macros for specific headers that we need
1646 dnl We don't check for ancient stuff or things that are guaranteed to be there
1647 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1648 dnl Generally we're looking for POSIX headers.
1650 AC_HEADER_MMAP_ANONYMOUS
1656 AC_CHECK_HEADERS([cxxabi.h])
1658 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1659 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1660 AC_CHECK_HEADERS([utime.h])
1661 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1662 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1663 AC_CHECK_HEADERS([valgrind/valgrind.h])
1664 AC_CHECK_HEADERS([fenv.h])
1665 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1666 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1667 AC_CHECK_HEADERS(pthread.h,
1668 AC_SUBST(HAVE_PTHREAD, 1),
1669 AC_SUBST(HAVE_PTHREAD, 0))
1671 AC_SUBST(HAVE_PTHREAD, 0)
1673 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1674 AC_CHECK_HEADERS(zlib.h,
1675 AC_SUBST(HAVE_LIBZ, 1),
1676 AC_SUBST(HAVE_LIBZ, 0))
1678 AC_SUBST(HAVE_LIBZ, 0)
1681 dnl Try to find ffi.h.
1682 if test "$llvm_cv_enable_libffi" = "yes" ; then
1683 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1686 dnl Try to find Darwin specific crash reporting libraries.
1687 AC_CHECK_HEADERS([CrashReporterClient.h])
1689 dnl Try to find Darwin specific crash reporting global.
1690 AC_MSG_CHECKING([__crashreporter_info__])
1694 extern const char *__crashreporter_info__;
1696 __crashreporter_info__ = "test";
1702 AC_MSG_RESULT([yes])
1703 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1707 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1710 dnl===-----------------------------------------------------------------------===
1712 dnl=== SECTION 7: Check for types and structures
1714 dnl===-----------------------------------------------------------------------===
1719 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1721 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1722 AC_CHECK_TYPES([uint64_t],,
1723 AC_CHECK_TYPES([u_int64_t],,
1724 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1726 dnl===-----------------------------------------------------------------------===
1728 dnl=== SECTION 8: Check for specific functions needed
1730 dnl===-----------------------------------------------------------------------===
1732 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1733 AC_CHECK_FUNCS([powf fmodf strtof round ])
1734 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1735 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1736 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1737 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1738 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1739 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1740 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1741 AC_CHECK_FUNCS([futimes futimens])
1745 dnl Check the declaration "Secure API" on Windows environments.
1746 AC_CHECK_DECLS([strerror_s])
1748 dnl Check symbols in libgcc.a for JIT on Mingw.
1749 if test "$llvm_cv_os_type" = "MingW" ; then
1750 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1751 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1752 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1753 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1755 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1756 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1757 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1758 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1759 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1760 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1761 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1762 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1763 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1764 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1766 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1767 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1770 dnl Check Win32 API EnumerateLoadedModules.
1771 if test "$llvm_cv_os_type" = "MingW" ; then
1772 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1776 #include <windows.h>
1777 #include <imagehlp.h>
1778 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1779 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1783 AC_MSG_RESULT([yes])
1784 llvm_cv_win32_elmcb_pcstr="PCSTR"
1788 llvm_cv_win32_elmcb_pcstr="PSTR"
1790 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1793 dnl Check for variations in the Standard C++ library and STL. These macros are
1794 dnl provided by LLVM in the autoconf/m4 directory.
1798 dnl Check for mmap support.We also need to know if /dev/zero is required to
1799 dnl be opened for allocating RWX memory.
1800 dnl Make sure we aren't attempting to configure for an unknown system
1801 if test "$llvm_cv_platform_type" = "Unix" ; then
1804 AC_NEED_DEV_ZERO_FOR_MMAP
1806 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1808 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1810 if test "$ac_cv_func_mmap_file" = "no"
1812 AC_MSG_WARN([mmap() of files required but not found])
1816 dnl atomic builtins are required for threading support.
1817 AC_MSG_CHECKING(for GCC atomic builtins)
1818 dnl Since we'll be using these atomic builtins in C++ files we should test
1819 dnl the C++ compiler.
1825 volatile unsigned long val = 1;
1826 __sync_synchronize();
1827 __sync_val_compare_and_swap(&val, 1, 0);
1828 __sync_add_and_fetch(&val, 1);
1829 __sync_sub_and_fetch(&val, 1);
1835 AC_MSG_RESULT([yes])
1836 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1840 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1841 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1845 dnl===-----------------------------------------------------------------------===
1847 dnl=== SECTION 9: Additional checks, variables, etc.
1849 dnl===-----------------------------------------------------------------------===
1851 dnl Handle 32-bit linux systems running a 64-bit kernel.
1852 dnl This has to come after section 4 because it invokes the compiler.
1853 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1855 if test "$llvm_cv_linux_mixed" = "yes"; then
1856 llvm_cv_target_arch="x86"
1861 dnl Check whether __dso_handle is present
1862 AC_CHECK_FUNCS([__dso_handle])
1864 dnl Propagate the shared library extension that the libltdl checks did to
1865 dnl the Makefiles so we can use it there too
1866 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1868 dnl Propagate the run-time library path variable that the libltdl
1869 dnl checks found to the Makefiles so we can use it there too
1870 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1872 dnl Translate the various configuration directories and other basic
1873 dnl information into substitutions that will end up in Makefile.config.in
1874 dnl that these configured values can be used by the makefiles
1875 if test "${prefix}" = "NONE" ; then
1878 eval LLVM_PREFIX="${prefix}";
1879 eval LLVM_BINDIR="${prefix}/bin";
1880 eval LLVM_DATADIR="${prefix}/share/llvm";
1881 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1882 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1883 eval LLVM_INCLUDEDIR="${prefix}/include";
1884 eval LLVM_INFODIR="${prefix}/info";
1885 eval LLVM_MANDIR="${prefix}/man";
1886 LLVM_CONFIGTIME=`date`
1887 AC_SUBST(LLVM_PREFIX)
1888 AC_SUBST(LLVM_BINDIR)
1889 AC_SUBST(LLVM_DATADIR)
1890 AC_SUBST(LLVM_DOCSDIR)
1891 AC_SUBST(LLVM_ETCDIR)
1892 AC_SUBST(LLVM_INCLUDEDIR)
1893 AC_SUBST(LLVM_INFODIR)
1894 AC_SUBST(LLVM_MANDIR)
1895 AC_SUBST(LLVM_CONFIGTIME)
1897 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1898 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1899 LLVM_CONFIGTIME="(timestamp not enabled)"
1902 dnl Place the various directories into the config.h file as #defines so that we
1903 dnl can know about the installation paths within LLVM.
1904 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1905 [Installation prefix directory])
1906 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1907 [Installation directory for binary executables])
1908 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1909 [Installation directory for data files])
1910 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1911 [Installation directory for documentation])
1912 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1913 [Installation directory for config files])
1914 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1915 [Installation directory for include files])
1916 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1917 [Installation directory for .info files])
1918 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1919 [Installation directory for man pages])
1920 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1921 [Time at which LLVM was configured])
1922 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1923 [Host triple LLVM will be executed on])
1924 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1925 [Target triple LLVM will generate code for by default])
1927 dnl Determine which bindings to build.
1928 if test "$BINDINGS_TO_BUILD" = auto ; then
1929 BINDINGS_TO_BUILD=""
1930 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1931 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1934 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1936 dnl This isn't really configurey, but it avoids having to repeat the list in
1938 AC_SUBST(ALL_BINDINGS,ocaml)
1940 dnl Do any work necessary to ensure that bindings have what they need.
1941 binding_prereqs_failed=0
1942 for a_binding in $BINDINGS_TO_BUILD ; do
1943 case "$a_binding" in
1945 if test "x$OCAMLC" = x ; then
1946 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1947 binding_prereqs_failed=1
1949 if test "x$OCAMLDEP" = x ; then
1950 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1951 binding_prereqs_failed=1
1953 if test "x$OCAMLOPT" = x ; then
1954 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1955 dnl ocamlopt is optional!
1957 if test "x$with_ocaml_libdir" != xauto ; then
1958 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1960 ocaml_stdlib="`"$OCAMLC" -where`"
1961 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1963 # ocaml stdlib is beneath our prefix; use stdlib
1964 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1966 # ocaml stdlib is outside our prefix; use libdir/ocaml
1967 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1973 if test "$binding_prereqs_failed" = 1 ; then
1974 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1977 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1978 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1980 dnl Determine linker rpath flag
1981 if test "$llvm_cv_link_use_r" = "yes" ; then
1988 dnl Determine linker rdynamic flag
1989 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1990 RDYNAMIC="-rdynamic"
1996 dnl===-----------------------------------------------------------------------===
1998 dnl=== SECTION 10: Specify the output files and generate it
2000 dnl===-----------------------------------------------------------------------===
2002 dnl Configure header files
2003 dnl WARNING: dnl If you add or remove any of the following config headers, then
2004 dnl you MUST also update Makefile so that the variable FilesToConfig
2005 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2006 dnl files can be updated automatically when their *.in sources change.
2007 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2008 AH_TOP([#ifndef CONFIG_H
2012 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2013 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2014 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2015 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2016 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2018 dnl Configure the makefile's configuration data
2019 AC_CONFIG_FILES([Makefile.config])
2021 dnl Configure the RPM spec file for LLVM
2022 AC_CONFIG_FILES([llvm.spec])
2024 dnl Configure doxygen's configuration file
2025 AC_CONFIG_FILES([docs/doxygen.cfg])
2027 dnl Configure clang, if present
2028 if test "${clang_src_root}" = ""; then
2029 clang_src_root="$srcdir/tools/clang"
2031 if test -f ${clang_src_root}/README.txt; then
2032 dnl Use variables to stay under 80 columns.
2033 configh="include/clang/Config/config.h"
2034 doxy="docs/doxygen.cfg"
2035 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2036 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2039 dnl OCaml findlib META file
2040 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2042 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2043 test "x$program_prefix" = "xNONE" && program_prefix=""
2044 AC_SUBST([program_prefix])
2047 dnl Do special configuration of Makefiles
2048 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2049 AC_CONFIG_MAKEFILE(Makefile)
2050 AC_CONFIG_MAKEFILE(Makefile.common)
2051 AC_CONFIG_MAKEFILE(examples/Makefile)
2052 AC_CONFIG_MAKEFILE(lib/Makefile)
2053 AC_CONFIG_MAKEFILE(test/Makefile)
2054 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2055 AC_CONFIG_MAKEFILE(unittests/Makefile)
2056 AC_CONFIG_MAKEFILE(tools/Makefile)
2057 AC_CONFIG_MAKEFILE(utils/Makefile)
2058 AC_CONFIG_MAKEFILE(projects/Makefile)
2059 AC_CONFIG_MAKEFILE(bindings/Makefile)
2060 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2062 dnl Finally, crank out the output