1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl License. See LICENSE.TXT for details.
7 dnl===-----------------------------------------------------------------------===
8 dnl This is the LLVM configuration script. It is processed by the autoconf
9 dnl program to produce a script named configure. This script contains the
10 dnl configuration checks that LLVM needs in order to support multiple platforms.
11 dnl This file is composed of 10 sections per the recommended organization of
12 dnl autoconf input defined in the autoconf documentation. As this file evolves,
13 dnl please keep the various types of checks within their sections. The sections
16 dnl SECTION 1: Initialization & Setup
17 dnl SECTION 2: Architecture, target, and host checks
18 dnl SECTION 3: Command line arguments for the configure script.
19 dnl SECTION 4: Check for programs we need and that they are the right version
20 dnl SECTION 5: Check for libraries
21 dnl SECTION 6: Check for header files
22 dnl SECTION 7: Check for types and structures
23 dnl SECTION 8: Check for specific functions needed
24 dnl SECTION 9: Additional checks, variables, etc.
25 dnl SECTION 10: Specify the output files and generate it
27 dnl===-----------------------------------------------------------------------===
29 dnl=== SECTION 1: Initialization & Setup
31 dnl===-----------------------------------------------------------------------===
32 dnl Initialize autoconf and define the package name, version number and
33 dnl address for reporting bugs.
35 AC_INIT([LLVM],[3.6.0svn],[http://llvm.org/bugs/])
40 LLVM_VERSION_SUFFIX=svn
42 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
43 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])
44 AC_DEFINE_UNQUOTED([LLVM_VERSION_PATCH], $LLVM_VERSION_PATCH, [Patch version of the LLVM API])
46 AC_SUBST([LLVM_VERSION_MAJOR])
47 AC_SUBST([LLVM_VERSION_MINOR])
48 AC_SUBST([LLVM_VERSION_PATCH])
49 AC_SUBST([LLVM_VERSION_SUFFIX])
51 dnl Provide a copyright substitution and ensure the copyright notice is included
52 dnl in the output of --version option of the generated configure script.
53 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
54 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
56 dnl Indicate that we require autoconf 2.60 or later.
59 dnl Verify that the source directory is valid. This makes sure that we are
60 dnl configuring LLVM and not some other package (it validates --srcdir argument)
61 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
63 dnl Place all of the extra autoconf files into the config subdirectory. Tell
64 dnl various tools where the m4 autoconf macros are.
65 AC_CONFIG_AUX_DIR([autoconf])
67 dnl Quit if the source directory has already been configured.
68 dnl NOTE: This relies upon undocumented autoconf behavior.
69 if test ${srcdir} != "." ; then
70 if test -f ${srcdir}/include/llvm/Config/config.h ; then
71 AC_MSG_ERROR([Already configured in ${srcdir}])
75 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
76 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
80 dnl We need to check for the compiler up here to avoid anything else
81 dnl starting with a different one.
83 AC_PROG_CXX(clang++ g++)
86 dnl If CXX is Clang, check that it can find and parse C++ standard library
88 if test "$CXX" = "clang++" ; then
89 AC_MSG_CHECKING([whether clang works])
91 dnl Note that space between 'include' and '(' is required. There's a broken
92 dnl regex in aclocal that otherwise will think that we call m4's include
94 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
95 #if __has_include (<cxxabi.h>)
98 #if __has_include (<unwind.h>)
107 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
112 dnl Set up variables that track whether the host compiler is GCC or Clang where
113 dnl we can effectively sanity check them. We don't try to sanity check all the
114 dnl other possible compilers.
115 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
117 llvm_cv_cxx_compiler=unknown
118 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
122 llvm_cv_cxx_compiler=clang,
123 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
127 llvm_cv_cxx_compiler=gcc, [])])
129 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
131 dnl Configure all of the projects present in our source tree. While we could
132 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
133 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
134 dnl Instead we match on the known projects.
137 dnl One tricky part of doing this is that some projects depend upon other
138 dnl projects. For example, several projects rely upon the LLVM test suite.
139 dnl We want to configure those projects first so that their object trees are
140 dnl created before running the configure scripts of projects that depend upon
144 dnl Several projects use the LLVM test suite, so configure it next.
145 if test -d ${srcdir}/projects/test-suite ; then
146 AC_CONFIG_SUBDIRS([projects/test-suite])
149 dnl llvm-test is the old name of the test-suite, kept here for backwards
151 if test -d ${srcdir}/projects/llvm-test ; then
152 AC_CONFIG_SUBDIRS([projects/llvm-test])
155 dnl Some projects use poolalloc; configure that next
156 if test -d ${srcdir}/projects/poolalloc ; then
157 AC_CONFIG_SUBDIRS([projects/poolalloc])
160 if test -d ${srcdir}/projects/llvm-poolalloc ; then
161 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
164 dnl Check for all other projects
165 for i in `ls ${srcdir}/projects`
167 if test -d ${srcdir}/projects/${i} ; then
169 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
176 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
182 dnl Disable the build of polly, even if it is checked out into tools/polly.
184 AS_HELP_STRING([--enable-polly],
185 [Use polly if available (default is YES)]),,
188 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
189 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
190 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
191 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
195 dnl Check if polly is checked out into tools/polly and configure it if
197 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
198 AC_SUBST(LLVM_HAS_POLLY,1)
199 AC_CONFIG_SUBDIRS([tools/polly])
202 dnl===-----------------------------------------------------------------------===
204 dnl=== SECTION 2: Architecture, target, and host checks
206 dnl===-----------------------------------------------------------------------===
208 dnl Check the target for which we're compiling and the host that will do the
209 dnl compilations. This will tell us which LLVM compiler will be used for
210 dnl compiling SSA into object code. This needs to be done early because
211 dnl following tests depend on it.
214 dnl Determine the platform type and cache its value. This helps us configure
215 dnl the System library to the correct build platform.
216 AC_CACHE_CHECK([type of operating system we're going to host on],
220 llvm_cv_link_all_option="-Wl,--whole-archive"
221 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
222 llvm_cv_os_type="AIX"
223 llvm_cv_platform_type="Unix" ;;
225 llvm_cv_link_all_option="-Wl,--whole-archive"
226 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
227 llvm_cv_os_type="IRIX"
228 llvm_cv_platform_type="Unix" ;;
230 llvm_cv_link_all_option="-Wl,--whole-archive"
231 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
232 llvm_cv_os_type="Cygwin"
233 llvm_cv_platform_type="Unix" ;;
235 llvm_cv_link_all_option="-Wl,-all_load"
236 llvm_cv_no_link_all_option="-Wl,-noall_load"
237 llvm_cv_os_type="Darwin"
238 llvm_cv_platform_type="Unix" ;;
240 llvm_cv_link_all_option="-Wl,-all_load"
241 llvm_cv_no_link_all_option="-Wl,-noall_load"
242 llvm_cv_os_type="Minix"
243 llvm_cv_platform_type="Unix" ;;
245 llvm_cv_link_all_option="-Wl,--whole-archive"
246 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
247 llvm_cv_os_type="FreeBSD"
248 llvm_cv_platform_type="Unix" ;;
250 llvm_cv_link_all_option="-Wl,--whole-archive"
251 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
252 llvm_cv_os_type="GNU/kFreeBSD"
253 llvm_cv_platform_type="Unix" ;;
255 llvm_cv_link_all_option="-Wl,--whole-archive"
256 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
257 llvm_cv_os_type="OpenBSD"
258 llvm_cv_platform_type="Unix" ;;
260 llvm_cv_link_all_option="-Wl,--whole-archive"
261 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
262 llvm_cv_os_type="NetBSD"
263 llvm_cv_platform_type="Unix" ;;
265 llvm_cv_link_all_option="-Wl,--whole-archive"
266 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
267 llvm_cv_os_type="DragonFly"
268 llvm_cv_platform_type="Unix" ;;
270 llvm_cv_link_all_option="-Wl,--whole-archive"
271 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
272 llvm_cv_os_type="HP-UX"
273 llvm_cv_platform_type="Unix" ;;
275 llvm_cv_link_all_option="-Wl,--whole-archive"
276 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
277 llvm_cv_os_type="Interix"
278 llvm_cv_platform_type="Unix" ;;
280 llvm_cv_link_all_option="-Wl,--whole-archive"
281 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
282 llvm_cv_os_type="Linux"
283 llvm_cv_platform_type="Unix" ;;
285 llvm_cv_link_all_option="-Wl,--whole-archive"
286 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
287 llvm_cv_os_type="GNU"
288 llvm_cv_platform_type="Unix" ;;
290 llvm_cv_link_all_option="-Wl,-z,allextract"
291 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
292 llvm_cv_os_type="SunOS"
293 llvm_cv_platform_type="Unix" ;;
295 llvm_cv_link_all_option="-Wl,-z,allextract"
296 llvm_cv_link_all_option="-Wl,-z,defaultextract"
297 llvm_cv_os_type="AuroraUX"
298 llvm_cv_platform_type="Unix" ;;
300 llvm_cv_link_all_option="-Wl,--whole-archive"
301 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
302 llvm_cv_os_type="Win32"
303 llvm_cv_platform_type="Win32" ;;
305 llvm_cv_link_all_option="-Wl,--whole-archive"
306 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
307 llvm_cv_os_type="MingW"
308 llvm_cv_platform_type="Win32" ;;
310 llvm_cv_link_all_option="-Wl,--whole-archive"
311 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
312 llvm_cv_os_type="Haiku"
313 llvm_cv_platform_type="Unix" ;;
315 llvm_cv_link_all_option="-Wl,--whole-archive"
316 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
317 llvm_cv_os_type="Freestanding"
318 llvm_cv_platform_type="Unix" ;;
320 llvm_cv_link_all_option="-Wl,--whole-archive"
321 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
322 llvm_cv_os_type="Freestanding"
323 llvm_cv_platform_type="Unix" ;;
325 llvm_cv_link_all_option=""
326 llvm_cv_no_link_all_option=""
327 llvm_cv_os_type="Unknown"
328 llvm_cv_platform_type="Unknown" ;;
331 AC_CACHE_CHECK([type of operating system we're going to target],
332 [llvm_cv_target_os_type],
335 llvm_cv_target_os_type="AIX" ;;
337 llvm_cv_target_os_type="IRIX" ;;
339 llvm_cv_target_os_type="Cygwin" ;;
341 llvm_cv_target_os_type="Darwin" ;;
343 llvm_cv_target_os_type="Minix" ;;
345 llvm_cv_target_os_type="FreeBSD" ;;
347 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
349 llvm_cv_target_os_type="OpenBSD" ;;
351 llvm_cv_target_os_type="NetBSD" ;;
353 llvm_cv_target_os_type="DragonFly" ;;
355 llvm_cv_target_os_type="HP-UX" ;;
357 llvm_cv_target_os_type="Interix" ;;
359 llvm_cv_target_os_type="Linux" ;;
361 llvm_cv_target_os_type="GNU" ;;
363 llvm_cv_target_os_type="SunOS" ;;
365 llvm_cv_target_os_type="AuroraUX" ;;
367 llvm_cv_target_os_type="Win32" ;;
369 llvm_cv_target_os_type="MingW" ;;
371 llvm_cv_target_os_type="Haiku" ;;
373 llvm_cv_target_os_type="RTEMS" ;;
375 llvm_cv_target_os_type="NativeClient" ;;
377 llvm_cv_target_os_type="Freestanding" ;;
379 llvm_cv_target_os_type="Unknown" ;;
382 dnl Make sure we aren't attempting to configure for an unknown system
383 if test "$llvm_cv_os_type" = "Unknown" ; then
384 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
387 dnl Set the "OS" Makefile variable based on the platform type so the
388 dnl makefile can configure itself to specific build hosts
389 AC_SUBST(OS,$llvm_cv_os_type)
390 AC_SUBST(HOST_OS,$llvm_cv_os_type)
391 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
393 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
394 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
395 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
397 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
398 dnl This is used by lib/Support to determine the basic kind of implementation
400 case $llvm_cv_platform_type in
402 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
403 AC_SUBST(LLVM_ON_UNIX,[1])
404 AC_SUBST(LLVM_ON_WIN32,[0])
407 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
408 AC_SUBST(LLVM_ON_UNIX,[0])
409 AC_SUBST(LLVM_ON_WIN32,[1])
413 dnl Determine what our target architecture is and configure accordingly.
414 dnl This will allow Makefiles to make a distinction between the hardware and
416 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
418 i?86-*) llvm_cv_target_arch="x86" ;;
419 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
420 sparc*-*) llvm_cv_target_arch="Sparc" ;;
421 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
422 arm64*-*) llvm_cv_target_arch="AArch64" ;;
423 arm*-*) llvm_cv_target_arch="ARM" ;;
424 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
425 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
426 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
427 xcore-*) llvm_cv_target_arch="XCore" ;;
428 msp430-*) llvm_cv_target_arch="MSP430" ;;
429 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
430 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
431 s390x-*) llvm_cv_target_arch="SystemZ" ;;
432 *) llvm_cv_target_arch="Unknown" ;;
435 if test "$llvm_cv_target_arch" = "Unknown" ; then
436 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
439 dnl Determine the LLVM native architecture for the target
440 case "$llvm_cv_target_arch" in
441 x86) LLVM_NATIVE_ARCH="X86" ;;
442 x86_64) LLVM_NATIVE_ARCH="X86" ;;
443 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
446 dnl Define a substitution, ARCH, for the target architecture
447 AC_SUBST(ARCH,$llvm_cv_target_arch)
448 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
450 dnl Determine what our host architecture.
451 dnl This will allow MCJIT regress tests runs only for supported
454 i?86-*) host_arch="x86" ;;
455 amd64-* | x86_64-*) host_arch="x86_64" ;;
456 sparc*-*) host_arch="Sparc" ;;
457 powerpc*-*) host_arch="PowerPC" ;;
458 arm64*-*) host_arch="AArch64" ;;
459 arm*-*) host_arch="ARM" ;;
460 aarch64*-*) host_arch="AArch64" ;;
461 mips-* | mips64-*) host_arch="Mips" ;;
462 mipsel-* | mips64el-*) host_arch="Mips" ;;
463 xcore-*) host_arch="XCore" ;;
464 msp430-*) host_arch="MSP430" ;;
465 hexagon-*) host_arch="Hexagon" ;;
466 s390x-*) host_arch="SystemZ" ;;
467 *) host_arch="Unknown" ;;
470 if test "$host_arch" = "Unknown" ; then
471 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
474 AC_SUBST(HOST_ARCH,$host_arch)
476 dnl Check for build platform executable suffix if we're cross-compiling
477 if test "$cross_compiling" = yes; then
478 AC_SUBST(LLVM_CROSS_COMPILING, [1])
480 ac_build_prefix=${build_alias}-
481 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
482 if test -z "$BUILD_CXX"; then
483 AC_CHECK_PROG(BUILD_CXX, g++, g++)
484 if test -z "$BUILD_CXX"; then
485 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
489 AC_SUBST(LLVM_CROSS_COMPILING, [0])
492 dnl Check to see if there's a .svn or .git directory indicating that this
493 dnl build is being done from a checkout. This sets up several defaults for
494 dnl the command line switches. When we build with a checkout directory,
495 dnl we get a debug with assertions turned on. Without, we assume a source
496 dnl release and we get an optimized build without assertions.
497 dnl See --enable-optimized and --enable-assertions below
498 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
501 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
507 dnl===-----------------------------------------------------------------------===
509 dnl=== SECTION 3: Command line arguments for the configure script.
511 dnl===-----------------------------------------------------------------------===
513 dnl --enable-libcpp : check whether or not to use libc++ on the command line
514 AC_ARG_ENABLE(libcpp,
515 AS_HELP_STRING([--enable-libcpp],
516 [Use libc++ if available (default is NO)]),,
519 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
520 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
521 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
522 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
525 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
526 dnl be bypassed by passing a flag if necessary on a platform. We have to do
527 dnl these checks here so that we have the configuration of the standard C++
528 dnl library finished.
529 AC_ARG_ENABLE(compiler-version-checks,
530 AS_HELP_STRING([--enable-compiler-version-checks],
531 [Check the version of the host compiler (default is YES)]),,
538 case "$llvm_cv_cxx_compiler" in
540 AC_MSG_CHECKING([whether Clang is new enough])
541 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
542 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
543 #error This version of Clang is too old to build LLVM
546 [AC_MSG_RESULT([yes])],
549 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
550 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
551 bypass these sanity checks.])])
553 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
554 dnl are sometimes deeply confusing though. Here we test for an obvious
555 dnl incomplete feature in 4.6's standard library that was completed in
556 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
557 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
558 dnl that happening in the Makefile.
559 if test "$ENABLE_LIBCPP" -eq 0 ; then
560 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
561 llvm_cv_old_cxxflags="$CXXFLAGS"
562 CXXFLAGS="$CXXFLAGS -std=c++0x"
563 AC_LINK_IFELSE([AC_LANG_SOURCE([[
565 std::atomic<float> x(0.0f);
566 int main() { return (float)x; }
568 [AC_MSG_RESULT([yes])],
571 We detected a missing feature in the standard C++ library that was known to be
572 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
573 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
574 than 4.7. You will need to update your system and ensure Clang uses the newer
577 If this error is incorrect or you need to force things to work, you may pass
578 '--disable-compiler-version-checks' to configure to bypass this test.])])
579 CXXFLAGS="$llvm_cv_old_cxxflags"
583 AC_MSG_CHECKING([whether GCC is new enough])
584 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
585 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
586 #error This version of GCC is too old to build LLVM
589 [AC_MSG_RESULT([yes])],
592 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
593 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
594 bypass these sanity checks.])])
602 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
606 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
608 AS_HELP_STRING([--enable-cxx1y],
609 [Use c++1y if available (default is NO)]),,
612 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
613 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
614 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
615 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
618 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
620 AC_ARG_ENABLE(split-dwarf,
621 AS_HELP_STRING([--enable-split-dwarf],
622 [Use split-dwarf if available (default is NO)]),,
625 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
626 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
627 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
628 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
631 dnl --enable-clang-arcmt: check whether to enable clang arcmt
633 AC_ARG_ENABLE(clang-arcmt,
634 AS_HELP_STRING([--enable-clang-arcmt],
635 [Enable building of clang ARCMT (default is YES)]),
636 clang_arcmt="$enableval",
639 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
640 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
641 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
642 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
645 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
646 clang_plugin_support="yes"
647 AC_ARG_ENABLE(clang-plugin-support,
648 AS_HELP_STRING([--enable-clang-plugin-support],
649 [Enable plugin support in clang (default is YES)]),
650 clang_plugin_support="$enableval",
653 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
654 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
655 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
656 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
659 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
660 clang_static_analyzer="yes"
661 AC_ARG_ENABLE(clang-static-analyzer,
662 AS_HELP_STRING([--enable-clang-static-analyzer],
663 [Enable building of clang Static Analyzer (default is YES)]),
664 clang_static_analyzer="$enableval",
667 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
669 if test ${clang_arcmt} != "no" ; then
670 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
672 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
674 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
675 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
678 dnl --enable-optimized : check whether they want to do an optimized build:
679 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
680 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
681 if test ${enableval} = "no" ; then
682 AC_SUBST(ENABLE_OPTIMIZED,[[]])
684 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
687 dnl --enable-profiling : check whether they want to do a profile build:
688 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
689 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
690 if test ${enableval} = "no" ; then
691 AC_SUBST(ENABLE_PROFILING,[[]])
693 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
696 dnl --enable-assertions : check whether they want to turn on assertions or not:
697 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
698 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
699 if test ${enableval} = "yes" ; then
700 AC_SUBST(DISABLE_ASSERTIONS,[[]])
702 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
705 dnl --enable-werror : check whether we want Werror on by default
706 AC_ARG_ENABLE(werror,AS_HELP_STRING(
707 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
709 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
710 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
711 default) AC_SUBST(ENABLE_WERROR,[0]);;
712 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
715 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
716 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
717 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
718 if test ${enableval} = "yes" ; then
719 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
720 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
722 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
723 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
726 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
727 AC_ARG_ENABLE(debug-runtime,
728 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
729 if test ${enableval} = "no" ; then
730 AC_SUBST(DEBUG_RUNTIME,[[]])
732 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
735 dnl --enable-debug-symbols : should even optimized compiler libraries
736 dnl have debug symbols?
737 AC_ARG_ENABLE(debug-symbols,
738 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)
739 if test ${enableval} = "no" ; then
740 AC_SUBST(DEBUG_SYMBOLS,[[]])
742 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
745 dnl --enable-keep-symbols : do not strip installed executables
746 AC_ARG_ENABLE(keep-symbols,
747 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
748 if test ${enableval} = "no" ; then
749 AC_SUBST(KEEP_SYMBOLS,[[]])
751 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
754 dnl --enable-jit: check whether they want to enable the jit
756 AS_HELP_STRING(--enable-jit,
757 [Enable Just In Time Compiling (default is YES)]),,
759 if test ${enableval} = "no"
763 case "$llvm_cv_target_arch" in
764 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
765 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
766 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
767 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
768 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
769 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
770 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
771 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
772 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
773 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
774 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
775 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
779 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
780 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
782 dnl Allow enablement of building and installing docs
784 AS_HELP_STRING([--enable-docs],
785 [Build documents (default is YES)]),,
788 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
789 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
790 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
791 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
794 dnl Allow enablement of doxygen generated documentation
795 AC_ARG_ENABLE(doxygen,
796 AS_HELP_STRING([--enable-doxygen],
797 [Build doxygen documentation (default is NO)]),,
800 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
801 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
802 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
803 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
806 dnl Allow disablement of threads
807 AC_ARG_ENABLE(threads,
808 AS_HELP_STRING([--enable-threads],
809 [Use threads if available (default is YES)]),,
812 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
813 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
814 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
815 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
817 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
818 [Define if threads enabled])
820 dnl Allow disablement of pthread.h
821 AC_ARG_ENABLE(pthreads,
822 AS_HELP_STRING([--enable-pthreads],
823 [Use pthreads if available (default is YES)]),,
826 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
827 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
828 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
829 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
832 dnl Allow disablement of zlib
834 AS_HELP_STRING([--enable-zlib],
835 [Use zlib for compression/decompression if
836 available (default is YES)]),,
839 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
840 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
841 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
842 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
844 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
845 [Define if zlib is enabled])
847 dnl Allow building without position independent code
849 AS_HELP_STRING([--enable-pic],
850 [Build LLVM with Position Independent Code (default is YES)]),,
853 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
854 no) AC_SUBST(ENABLE_PIC,[0]) ;;
855 default) AC_SUBST(ENABLE_PIC,[1]) ;;
856 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
858 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
859 [Define if position independent code is enabled])
861 dnl Allow building a shared library and linking tools against it.
862 AC_ARG_ENABLE(shared,
863 AS_HELP_STRING([--enable-shared],
864 [Build a shared library and link tools against it (default is NO)]),,
867 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
868 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
869 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
870 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
873 dnl Allow libstdc++ is embedded in LLVM.dll.
874 AC_ARG_ENABLE(embed-stdcxx,
875 AS_HELP_STRING([--enable-embed-stdcxx],
876 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
879 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
880 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
881 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
882 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
885 dnl Enable embedding timestamp information into build.
886 AC_ARG_ENABLE(timestamps,
887 AS_HELP_STRING([--enable-timestamps],
888 [Enable embedding timestamp information in build (default is YES)]),,
891 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
892 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
893 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
894 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
896 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
897 [Define if timestamp information (e.g., __DATE__) is allowed])
899 dnl Enable support for showing backtraces.
900 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
901 [--enable-backtraces],
902 [Enable embedding backtraces on crash (default is YES)]),
903 [case "$enableval" in
904 yes) llvm_cv_enable_backtraces="yes" ;;
905 no) llvm_cv_enable_backtraces="no" ;;
906 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
908 llvm_cv_enable_backtraces="yes")
909 if test "$llvm_cv_enable_backtraces" = "yes" ; then
910 AC_DEFINE([ENABLE_BACKTRACES],[1],
911 [Define if you want backtraces on crash])
914 dnl Enable installing platform specific signal handling overrides, for improved
915 dnl CrashRecovery support or interaction with crash reporting software. This
916 dnl support may be inappropriate for some clients embedding LLVM as a library.
917 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
918 [--enable-crash-overrides],
919 [Enable crash handling overrides (default is YES)]),
920 [case "$enableval" in
921 yes) llvm_cv_enable_crash_overrides="yes" ;;
922 no) llvm_cv_enable_crash_overrides="no" ;;
923 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
925 llvm_cv_enable_crash_overrides="yes")
926 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
927 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
928 [Define to enable crash handling overrides])
931 dnl List all possible targets
932 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
933 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
935 dnl Allow specific targets to be specified for building (or not)
937 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
938 [Build specific host targets: all or target1,target2,... Valid targets are:
939 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
940 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
942 if test "$enableval" = host-only ; then
946 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
947 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
949 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
950 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
951 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
952 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
953 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
954 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
955 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
956 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
957 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
958 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
959 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
960 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
961 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
962 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
963 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
964 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
965 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
966 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
967 host) case "$llvm_cv_target_arch" in
968 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
969 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
970 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
971 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
972 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
973 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
974 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
975 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
976 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
977 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
978 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
979 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
980 *) AC_MSG_ERROR([Can not set target to build]) ;;
982 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
988 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
989 [Build experimental host targets: disable or target1,target2,...
990 (default=disable)]),,
993 if test ${enableval} != "disable"
995 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
998 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1000 dnl Determine whether we are building LLVM support for the native architecture.
1001 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1002 for a_target in $TARGETS_TO_BUILD; do
1003 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1004 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1005 [LLVM architecture name for the native architecture, if available])
1006 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1007 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1008 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1009 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1010 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1011 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1013 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1014 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1016 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1017 [LLVM name for the native Target init function, if available])
1018 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1019 [LLVM name for the native TargetInfo init function, if available])
1020 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1021 [LLVM name for the native target MC init function, if available])
1022 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1023 [LLVM name for the native AsmPrinter init function, if available])
1024 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1025 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1026 [LLVM name for the native AsmParser init function, if available])
1028 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1029 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1030 [LLVM name for the native Disassembler init function, if available])
1035 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1036 dnl target feature def files.
1037 LLVM_ENUM_TARGETS=""
1038 LLVM_ENUM_ASM_PRINTERS=""
1039 LLVM_ENUM_ASM_PARSERS=""
1040 LLVM_ENUM_DISASSEMBLERS=""
1041 for target_to_build in $TARGETS_TO_BUILD; do
1042 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1043 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1044 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1046 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1047 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1049 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1050 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1053 AC_SUBST(LLVM_ENUM_TARGETS)
1054 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1055 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1056 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1058 dnl Override the option to use for optimized builds.
1059 AC_ARG_WITH(optimize-option,
1060 AS_HELP_STRING([--with-optimize-option],
1061 [Select the compiler options to use for optimized builds]),,
1063 AC_MSG_CHECKING([optimization flags])
1066 case "$llvm_cv_os_type" in
1067 FreeBSD) optimize_option=-O2 ;;
1068 MingW) optimize_option=-O2 ;;
1069 *) optimize_option=-O3 ;;
1071 *) optimize_option="$withval" ;;
1073 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1074 AC_MSG_RESULT([$optimize_option])
1076 dnl Specify extra build options
1077 AC_ARG_WITH(extra-options,
1078 AS_HELP_STRING([--with-extra-options],
1079 [Specify additional options to compile LLVM with]),,
1082 default) EXTRA_OPTIONS= ;;
1083 *) EXTRA_OPTIONS=$withval ;;
1085 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1087 dnl Specify extra linker build options
1088 AC_ARG_WITH(extra-ld-options,
1089 AS_HELP_STRING([--with-extra-ld-options],
1090 [Specify additional options to link LLVM with]),,
1093 default) EXTRA_LD_OPTIONS= ;;
1094 *) EXTRA_LD_OPTIONS=$withval ;;
1096 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1098 dnl Allow specific bindings to be specified for building (or not)
1099 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1100 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1102 BINDINGS_TO_BUILD=""
1103 case "$enableval" in
1104 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1105 all ) BINDINGS_TO_BUILD="ocaml" ;;
1106 none | no) BINDINGS_TO_BUILD="" ;;
1107 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1108 case "$a_binding" in
1109 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1110 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1116 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1117 dnl script for bindings/ocaml/configure, except that its auto value depends on
1118 dnl OCAMLC, which is found here to support tests.
1119 AC_ARG_WITH([ocaml-libdir],
1120 [AS_HELP_STRING([--with-ocaml-libdir],
1121 [Specify install location for ocaml bindings (default is stdlib)])],
1125 auto) with_ocaml_libdir="$withval" ;;
1126 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1127 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1130 AC_ARG_WITH(clang-srcdir,
1131 AS_HELP_STRING([--with-clang-srcdir],
1132 [Directory to the out-of-tree Clang source]),,
1135 -) clang_src_root="" ;;
1136 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1137 *) clang_src_root="$ac_pwd/$withval" ;;
1139 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1141 AC_ARG_WITH(clang-resource-dir,
1142 AS_HELP_STRING([--with-clang-resource-dir],
1143 [Relative directory from the Clang binary for resource files]),,
1145 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1146 [Relative directory for resource files])
1148 AC_ARG_WITH(c-include-dirs,
1149 AS_HELP_STRING([--with-c-include-dirs],
1150 [Colon separated list of directories clang will search for headers]),,
1152 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1153 [Directories clang will search for headers])
1155 # Clang normally uses the system c++ headers and libraries. With this option,
1156 # clang will use the ones provided by a gcc installation instead. This option should
1157 # be passed the same value that was used with --prefix when configuring gcc.
1158 AC_ARG_WITH(gcc-toolchain,
1159 AS_HELP_STRING([--with-gcc-toolchain],
1160 [Directory where gcc is installed.]),,
1162 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1163 [Directory where gcc is installed.])
1165 AC_ARG_WITH(default-sysroot,
1166 AS_HELP_STRING([--with-default-sysroot],
1167 [Add --sysroot=<path> to all compiler invocations.]),,
1169 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1170 [Default <path> to all compiler invocations for --sysroot=<path>.])
1172 dnl Allow linking of LLVM with GPLv3 binutils code.
1173 AC_ARG_WITH(binutils-include,
1174 AS_HELP_STRING([--with-binutils-include],
1175 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1178 default) WITH_BINUTILS_INCDIR=default ;;
1179 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1180 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1182 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1183 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1184 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1185 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1186 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1190 dnl Specify the URL where bug reports should be submitted.
1191 AC_ARG_WITH(bug-report-url,
1192 AS_HELP_STRING([--with-bug-report-url],
1193 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1194 withval="http://llvm.org/bugs/")
1195 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1198 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1199 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1200 [--enable-terminfo],
1201 [Query the terminfo database if available (default is YES)]),
1202 [case "$enableval" in
1203 yes) llvm_cv_enable_terminfo="yes" ;;
1204 no) llvm_cv_enable_terminfo="no" ;;
1205 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1207 llvm_cv_enable_terminfo="yes")
1208 case "$llvm_cv_enable_terminfo" in
1209 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1210 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1213 dnl --enable-libedit: check whether the user wants to turn off libedit.
1214 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1216 [Use libedit if available (default is YES)]),
1217 [case "$enableval" in
1218 yes) llvm_cv_enable_libedit="yes" ;;
1219 no) llvm_cv_enable_libedit="no" ;;
1220 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1222 llvm_cv_enable_libedit="yes")
1224 dnl --enable-libffi : check whether the user wants to turn off libffi:
1225 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1226 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1227 [case "$enableval" in
1228 yes) llvm_cv_enable_libffi="yes" ;;
1229 no) llvm_cv_enable_libffi="no" ;;
1230 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1232 llvm_cv_enable_libffi=no)
1234 AC_ARG_WITH(internal-prefix,
1235 AS_HELP_STRING([--with-internal-prefix],
1236 [Installation directory for internal files]),,
1238 AC_SUBST(INTERNAL_PREFIX,[$withval])
1240 dnl===-----------------------------------------------------------------------===
1242 dnl=== SECTION 4: Check for programs we need and that they are the right version
1244 dnl===-----------------------------------------------------------------------===
1246 dnl Check for the tools that the makefiles require
1249 AC_PATH_PROG(NM, [nm], [nm])
1250 AC_PATH_PROG(CMP, [cmp], [cmp])
1251 AC_PATH_PROG(CP, [cp], [cp])
1252 AC_PATH_PROG(DATE, [date], [date])
1253 AC_PATH_PROG(FIND, [find], [find])
1254 AC_PATH_PROG(GREP, [grep], [grep])
1255 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1256 AC_PATH_PROG(MV, [mv], [mv])
1258 AC_CHECK_TOOL(AR, ar, false)
1259 AC_PATH_PROG(RM, [rm], [rm])
1260 AC_PATH_PROG(SED, [sed], [sed])
1261 AC_PATH_PROG(TAR, [tar], [gtar])
1262 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1264 dnl Looking for misc. graph plotting software
1265 AC_PATH_PROG(DOT, [dot], [echo dot])
1266 if test "$DOT" != "echo dot" ; then
1267 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1268 dnl If we're targeting for mingw we should emit windows paths, not msys
1269 if test "$llvm_cv_os_type" = "MingW" ; then
1270 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1272 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1273 [Define to path to dot program if found or 'echo dot' otherwise])
1276 dnl Find the install program
1278 dnl Prepend src dir to install path dir if it's a relative path
1279 dnl This is a hack for installs that take place in something other
1280 dnl than the top level.
1282 [[\\/$]]* | ?:[[\\/]]* ) ;;
1283 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1286 dnl Checks for documentation and testing tools that we can do without. If these
1287 dnl are not found then they are set to "true" which always succeeds but does
1288 dnl nothing. This just lets the build output show that we could have done
1289 dnl something if the tool was available.
1290 AC_PATH_PROG(BZIP2, [bzip2])
1291 AC_PATH_PROG(CAT, [cat])
1292 AC_PATH_PROG(DOXYGEN, [doxygen])
1293 AC_PATH_PROG(GROFF, [groff])
1294 AC_PATH_PROG(GZIPBIN, [gzip])
1295 AC_PATH_PROG(PDFROFF, [pdfroff])
1296 AC_PATH_PROG(ZIP, [zip])
1297 AC_PATH_PROGS(OCAMLC, [ocamlc])
1298 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1299 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1300 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1301 AC_PATH_PROGS(GAS, [gas as])
1303 dnl Get the version of the linker in use.
1306 dnl Determine whether the linker supports the -R option.
1309 dnl Determine whether the compiler supports the -rdynamic option.
1310 AC_LINK_EXPORT_DYNAMIC
1312 dnl Determine whether the linker supports the --version-script option.
1313 AC_LINK_VERSION_SCRIPT
1315 AC_CHECK_HEADERS([errno.h])
1317 case "$llvm_cv_os_type" in
1318 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1319 Darwin) llvm_shlib_ext=.dylib ;;
1320 *) llvm_shlib_ext=.so ;;
1323 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1325 AC_MSG_CHECKING([tool compatibility])
1327 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1328 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1329 dnl to support those options.
1330 dnl "icc" emits gcc signatures
1331 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1343 if test "$GCC" != "yes" && test "$ICC" != "yes"
1345 AC_MSG_ERROR([gcc|icc required but not found])
1348 dnl Ensure that compilation tools are compatible with GCC extensions
1349 if test "$GXX" != "yes" && test "$IXX" != "yes"
1351 AC_MSG_ERROR([g++|clang++|icc required but not found])
1354 dnl Verify that GCC is version 3.0 or higher
1355 if test "$GCC" = "yes"
1360 #if !defined(__GNUC__) || __GNUC__ < 3
1361 #error Unsupported GCC version
1365 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1368 dnl Check for GNU Make. We use its extensions, so don't build without it
1369 if test -z "$llvm_cv_gnu_make_command"
1371 AC_MSG_ERROR([GNU Make required but not found])
1374 dnl Tool compatibility is okay if we make it here.
1377 dnl Check optional compiler flags.
1378 AC_MSG_CHECKING([optional compiler flags])
1379 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1380 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1381 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1383 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1384 dnl false positives, so disable it.
1386 NO_MAYBE_UNINITIALIZED=
1387 if test "$GXX" = "yes"
1389 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1390 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1391 dnl known to be uninitialized from cases which might be uninitialized. We
1392 dnl still want to catch the first kind of errors.
1393 if test -z "$NO_MAYBE_UNINITIALIZED"
1395 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1398 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1400 AC_ARG_WITH([python],
1401 [AS_HELP_STRING([--with-python], [path to python])],
1402 [PYTHON="$withval"])
1404 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1405 AC_MSG_CHECKING([for python])
1406 AC_MSG_RESULT([user defined: $with_python])
1408 if test -n "$PYTHON" ; then
1409 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1412 AC_PATH_PROG([PYTHON], [python python2 python26],
1413 [AC_MSG_RESULT([not found])
1414 AC_MSG_ERROR([could not find python 2.5 or higher])])
1417 AC_MSG_CHECKING([for python >= 2.5])
1418 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1419 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1420 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1421 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1422 if test "$ac_python_version_major" -gt "2" || \
1423 (test "$ac_python_version_major" -eq "2" && \
1424 test "$ac_python_version_minor" -ge "5") ; then
1425 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1427 AC_MSG_RESULT([not found])
1428 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1431 dnl===-----------------------------------------------------------------------===
1433 dnl=== SECTION 5: Check for libraries
1435 dnl===-----------------------------------------------------------------------===
1438 if test "$llvm_cv_os_type" = "MingW" ; then
1439 AC_CHECK_LIB(imagehlp, main)
1440 AC_CHECK_LIB(psapi, main)
1441 AC_CHECK_LIB(shell32, main)
1444 dnl dlopen() is required for plugin support.
1445 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1446 [Define if dlopen() is available on this platform.]),
1447 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1449 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1450 dnl macros to detect whether clock_gettime is available, this just finds the
1451 dnl right libraries to link with.
1452 AC_SEARCH_LIBS(clock_gettime,rt)
1454 dnl The curses library is optional; used for querying terminal info
1455 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1456 dnl We need the has_color functionality in curses for it to be useful.
1457 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1458 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1459 [Define if the setupterm() function is supported this platform.]))
1462 dnl The libedit library is optional; used by lib/LineEditor
1463 if test "$llvm_cv_enable_libedit" = "yes" ; then
1464 AC_SEARCH_LIBS(el_init,edit,
1465 AC_DEFINE([HAVE_LIBEDIT],[1],
1466 [Define if libedit is available on this platform.]))
1469 dnl libffi is optional; used to call external functions from the interpreter
1470 if test "$llvm_cv_enable_libffi" = "yes" ; then
1471 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1472 [Define if libffi is available on this platform.]),
1473 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1476 dnl mallinfo is optional; the code can compile (minus features) without it
1477 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1478 [Define if mallinfo() is available on this platform.]))
1480 dnl pthread locking functions are optional - but llvm will not be thread-safe
1482 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1483 AC_CHECK_LIB(pthread, pthread_mutex_init)
1484 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1485 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1486 [Have pthread_mutex_lock]))
1487 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1488 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1489 [Have pthread_rwlock_init]))
1490 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1491 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1492 [Have pthread_getspecific]))
1495 dnl zlib is optional; used for compression/uncompression
1496 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1497 AC_CHECK_LIB(z, compress2)
1500 dnl Allow OProfile support for JIT output.
1501 AC_ARG_WITH(oprofile,
1502 AS_HELP_STRING([--with-oprofile=<prefix>],
1503 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1505 AC_SUBST(USE_OPROFILE, [1])
1507 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1509 AC_SUBST(USE_OPROFILE, [0]) ;;
1510 *) llvm_cv_oppath="${withval}/lib/oprofile"
1511 CPPFLAGS="-I${withval}/include";;
1513 case $llvm_cv_os_type in
1515 if test -n "$llvm_cv_oppath" ; then
1516 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1517 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1518 dnl libbfd is not included properly in libopagent in some Debian
1519 dnl versions. If libbfd isn't found at all, we assume opagent works
1521 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1522 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1523 echo "Error! You need to have libopagent around."
1526 AC_CHECK_HEADER([opagent.h], [], [
1527 echo "Error! You need to have opagent.h around."
1532 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1536 AC_SUBST(USE_OPROFILE, [0])
1538 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1539 [Define if we have the oprofile JIT-support library])
1541 dnl Enable support for Intel JIT Events API.
1542 AC_ARG_WITH(intel-jitevents,
1543 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1546 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1547 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1548 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1551 case $llvm_cv_os_type in
1552 Linux|Win32|Cygwin|MingW) ;;
1553 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1556 case "$llvm_cv_target_arch" in
1558 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1562 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1564 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1565 [Define if we have the Intel JIT API runtime support library])
1567 dnl Check for libxml2
1568 dnl Right now we're just checking for the existence, we could also check for a
1569 dnl particular version via --version on xml2-config
1570 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1572 AC_MSG_CHECKING(for libxml2 includes)
1573 if test "x$XML2CONFIG" = "x"; then
1574 AC_MSG_RESULT(xml2-config not found)
1576 LIBXML2_INC=`$XML2CONFIG --cflags`
1577 AC_MSG_RESULT($LIBXML2_INC)
1578 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1579 LIBXML2_LIBS="-lxml2"])
1581 AC_SUBST(LIBXML2_LIBS)
1582 AC_SUBST(LIBXML2_INC)
1584 dnl===-----------------------------------------------------------------------===
1586 dnl=== SECTION 6: Check for header files
1588 dnl===-----------------------------------------------------------------------===
1590 dnl First, use autoconf provided macros for specific headers that we need
1591 dnl We don't check for ancient stuff or things that are guaranteed to be there
1592 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1593 dnl Generally we're looking for POSIX headers.
1595 AC_HEADER_MMAP_ANONYMOUS
1601 AC_CHECK_HEADERS([cxxabi.h])
1603 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1604 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1605 AC_CHECK_HEADERS([utime.h])
1606 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1607 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1608 AC_CHECK_HEADERS([valgrind/valgrind.h])
1609 AC_CHECK_HEADERS([fenv.h])
1610 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1611 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1612 AC_CHECK_HEADERS(pthread.h,
1613 AC_SUBST(HAVE_PTHREAD, 1),
1614 AC_SUBST(HAVE_PTHREAD, 0))
1616 AC_SUBST(HAVE_PTHREAD, 0)
1618 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1619 AC_CHECK_HEADERS(zlib.h,
1620 AC_SUBST(HAVE_LIBZ, 1),
1621 AC_SUBST(HAVE_LIBZ, 0))
1623 AC_SUBST(HAVE_LIBZ, 0)
1626 dnl Try to find ffi.h.
1627 if test "$llvm_cv_enable_libffi" = "yes" ; then
1628 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1631 dnl Try to find Darwin specific crash reporting libraries.
1632 AC_CHECK_HEADERS([CrashReporterClient.h])
1634 dnl Try to find Darwin specific crash reporting global.
1635 AC_MSG_CHECKING([__crashreporter_info__])
1639 extern const char *__crashreporter_info__;
1641 __crashreporter_info__ = "test";
1647 AC_MSG_RESULT([yes])
1648 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1652 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1655 dnl===-----------------------------------------------------------------------===
1657 dnl=== SECTION 7: Check for types and structures
1659 dnl===-----------------------------------------------------------------------===
1664 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1666 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1667 AC_CHECK_TYPES([uint64_t],,
1668 AC_CHECK_TYPES([u_int64_t],,
1669 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1671 dnl===-----------------------------------------------------------------------===
1673 dnl=== SECTION 8: Check for specific functions needed
1675 dnl===-----------------------------------------------------------------------===
1677 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1678 AC_CHECK_FUNCS([powf fmodf strtof round ])
1679 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1680 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1681 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1682 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1683 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1684 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1685 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1686 AC_CHECK_FUNCS([futimes futimens])
1690 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1691 AC_CHECK_DECLS([arc4random])
1693 dnl Check the declaration "Secure API" on Windows environments.
1694 AC_CHECK_DECLS([strerror_s])
1696 dnl Check symbols in libgcc.a for JIT on Mingw.
1697 if test "$llvm_cv_os_type" = "MingW" ; then
1698 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1699 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1700 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1701 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1703 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1704 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1705 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1706 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1707 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1708 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1709 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1710 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1711 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1712 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1714 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1715 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1718 dnl Check Win32 API EnumerateLoadedModules.
1719 if test "$llvm_cv_os_type" = "MingW" ; then
1720 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1724 #include <windows.h>
1725 #include <imagehlp.h>
1726 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1727 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1731 AC_MSG_RESULT([yes])
1732 llvm_cv_win32_elmcb_pcstr="PCSTR"
1736 llvm_cv_win32_elmcb_pcstr="PSTR"
1738 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1741 dnl Check for variations in the Standard C++ library and STL. These macros are
1742 dnl provided by LLVM in the autoconf/m4 directory.
1746 dnl Check for mmap support.We also need to know if /dev/zero is required to
1747 dnl be opened for allocating RWX memory.
1748 dnl Make sure we aren't attempting to configure for an unknown system
1749 if test "$llvm_cv_platform_type" = "Unix" ; then
1752 AC_NEED_DEV_ZERO_FOR_MMAP
1754 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1756 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1758 if test "$ac_cv_func_mmap_file" = "no"
1760 AC_MSG_WARN([mmap() of files required but not found])
1764 dnl atomic builtins are required for threading support.
1765 AC_MSG_CHECKING(for GCC atomic builtins)
1766 dnl Since we'll be using these atomic builtins in C++ files we should test
1767 dnl the C++ compiler.
1773 volatile unsigned long val = 1;
1774 __sync_synchronize();
1775 __sync_val_compare_and_swap(&val, 1, 0);
1776 __sync_add_and_fetch(&val, 1);
1777 __sync_sub_and_fetch(&val, 1);
1783 AC_MSG_RESULT([yes])
1784 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1788 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1789 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1793 dnl===-----------------------------------------------------------------------===
1795 dnl=== SECTION 9: Additional checks, variables, etc.
1797 dnl===-----------------------------------------------------------------------===
1799 dnl Handle 32-bit linux systems running a 64-bit kernel.
1800 dnl This has to come after section 4 because it invokes the compiler.
1801 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1803 if test "$llvm_cv_linux_mixed" = "yes"; then
1804 llvm_cv_target_arch="x86"
1809 dnl Check whether __dso_handle is present
1810 AC_CHECK_FUNCS([__dso_handle])
1812 dnl Propagate the shared library extension that the libltdl checks did to
1813 dnl the Makefiles so we can use it there too
1814 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
1816 dnl Translate the various configuration directories and other basic
1817 dnl information into substitutions that will end up in Makefile.config.in
1818 dnl that these configured values can be used by the makefiles
1819 if test "${prefix}" = "NONE" ; then
1822 eval LLVM_PREFIX="${prefix}";
1823 eval LLVM_BINDIR="${prefix}/bin";
1824 eval LLVM_DATADIR="${prefix}/share/llvm";
1825 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1826 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1827 eval LLVM_INCLUDEDIR="${prefix}/include";
1828 eval LLVM_INFODIR="${prefix}/info";
1829 eval LLVM_MANDIR="${prefix}/man";
1830 LLVM_CONFIGTIME=`date`
1831 AC_SUBST(LLVM_PREFIX)
1832 AC_SUBST(LLVM_BINDIR)
1833 AC_SUBST(LLVM_DATADIR)
1834 AC_SUBST(LLVM_DOCSDIR)
1835 AC_SUBST(LLVM_ETCDIR)
1836 AC_SUBST(LLVM_INCLUDEDIR)
1837 AC_SUBST(LLVM_INFODIR)
1838 AC_SUBST(LLVM_MANDIR)
1839 AC_SUBST(LLVM_CONFIGTIME)
1841 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1842 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1843 LLVM_CONFIGTIME="(timestamp not enabled)"
1846 dnl Place the various directories into the config.h file as #defines so that we
1847 dnl can know about the installation paths within LLVM.
1848 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1849 [Installation prefix directory])
1850 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1851 [Installation directory for binary executables])
1852 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1853 [Installation directory for data files])
1854 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1855 [Installation directory for documentation])
1856 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1857 [Installation directory for config files])
1858 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1859 [Installation directory for include files])
1860 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1861 [Installation directory for .info files])
1862 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1863 [Installation directory for man pages])
1864 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1865 [Time at which LLVM was configured])
1866 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1867 [Host triple LLVM will be executed on])
1868 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1869 [Target triple LLVM will generate code for by default])
1871 dnl Determine which bindings to build.
1872 if test "$BINDINGS_TO_BUILD" = auto ; then
1873 BINDINGS_TO_BUILD=""
1874 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1875 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1878 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1880 dnl This isn't really configurey, but it avoids having to repeat the list in
1882 AC_SUBST(ALL_BINDINGS,ocaml)
1884 dnl Do any work necessary to ensure that bindings have what they need.
1885 binding_prereqs_failed=0
1886 for a_binding in $BINDINGS_TO_BUILD ; do
1887 case "$a_binding" in
1889 if test "x$OCAMLC" = x ; then
1890 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1891 binding_prereqs_failed=1
1893 if test "x$OCAMLDEP" = x ; then
1894 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1895 binding_prereqs_failed=1
1897 if test "x$OCAMLOPT" = x ; then
1898 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1899 dnl ocamlopt is optional!
1901 if test "x$with_ocaml_libdir" != xauto ; then
1902 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1904 ocaml_stdlib="`"$OCAMLC" -where`"
1905 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1907 # ocaml stdlib is beneath our prefix; use stdlib
1908 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1910 # ocaml stdlib is outside our prefix; use libdir/ocaml
1911 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1917 if test "$binding_prereqs_failed" = 1 ; then
1918 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1921 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1922 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1924 dnl Determine linker rpath flag
1925 if test "$llvm_cv_link_use_r" = "yes" ; then
1932 dnl Determine linker rdynamic flag
1933 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1934 RDYNAMIC="-rdynamic"
1940 dnl===-----------------------------------------------------------------------===
1942 dnl=== SECTION 10: Specify the output files and generate it
1944 dnl===-----------------------------------------------------------------------===
1946 dnl Configure header files
1947 dnl WARNING: dnl If you add or remove any of the following config headers, then
1948 dnl you MUST also update Makefile so that the variable FilesToConfig
1949 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1950 dnl files can be updated automatically when their *.in sources change.
1951 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1952 AH_TOP([#ifndef CONFIG_H
1956 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1957 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1958 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1959 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1960 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1962 dnl Configure the makefile's configuration data
1963 AC_CONFIG_FILES([Makefile.config])
1965 dnl Configure the RPM spec file for LLVM
1966 AC_CONFIG_FILES([llvm.spec])
1968 dnl Configure doxygen's configuration file
1969 AC_CONFIG_FILES([docs/doxygen.cfg])
1971 dnl Configure clang, if present
1972 if test "${clang_src_root}" = ""; then
1973 clang_src_root="$srcdir/tools/clang"
1975 if test -f ${clang_src_root}/README.txt; then
1976 dnl Use variables to stay under 80 columns.
1977 configh="include/clang/Config/config.h"
1978 doxy="docs/doxygen.cfg"
1979 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1980 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1983 dnl OCaml findlib META file
1984 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1986 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1987 test "x$program_prefix" = "xNONE" && program_prefix=""
1988 AC_SUBST([program_prefix])
1991 dnl Do special configuration of Makefiles
1992 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1993 AC_CONFIG_MAKEFILE(Makefile)
1994 AC_CONFIG_MAKEFILE(Makefile.common)
1995 AC_CONFIG_MAKEFILE(examples/Makefile)
1996 AC_CONFIG_MAKEFILE(lib/Makefile)
1997 AC_CONFIG_MAKEFILE(test/Makefile)
1998 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1999 AC_CONFIG_MAKEFILE(unittests/Makefile)
2000 AC_CONFIG_MAKEFILE(tools/Makefile)
2001 AC_CONFIG_MAKEFILE(utils/Makefile)
2002 AC_CONFIG_MAKEFILE(projects/Makefile)
2003 AC_CONFIG_MAKEFILE(bindings/Makefile)
2004 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2006 dnl Finally, crank out the output