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],[3.4svn],[http://llvm.org/bugs/])
35 AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
36 AC_DEFINE([LLVM_VERSION_MINOR], [4], [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) 2003-2013 University of Illinois at Urbana-Champaign."])
41 AC_COPYRIGHT([Copyright (c) 2003-2013 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 ${srcdir}])
62 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
63 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
67 dnl We need to check for the compiler up here to avoid anything else
68 dnl starting with a different one.
69 AC_PROG_CC(clang llvm-gcc gcc)
70 AC_PROG_CXX(clang++ llvm-g++ g++)
73 dnl If CXX is Clang, check that it can find and parse C++ standard library
75 if test "$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 Configure all of the projects present in our source tree. While we could
100 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
101 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
102 dnl Instead we match on the known projects.
105 dnl One tricky part of doing this is that some projects depend upon other
106 dnl projects. For example, several projects rely upon the LLVM test suite.
107 dnl We want to configure those projects first so that their object trees are
108 dnl created before running the configure scripts of projects that depend upon
112 dnl Several projects use llvm-gcc, so configure that first
113 if test -d ${srcdir}/projects/llvm-gcc ; then
114 AC_CONFIG_SUBDIRS([projects/llvm-gcc])
117 dnl Several projects use the LLVM test suite, so configure it next.
118 if test -d ${srcdir}/projects/test-suite ; then
119 AC_CONFIG_SUBDIRS([projects/test-suite])
122 dnl llvm-test is the old name of the test-suite, kept here for backwards
124 if test -d ${srcdir}/projects/llvm-test ; then
125 AC_CONFIG_SUBDIRS([projects/llvm-test])
128 dnl Some projects use poolalloc; configure that next
129 if test -d ${srcdir}/projects/poolalloc ; then
130 AC_CONFIG_SUBDIRS([projects/poolalloc])
133 if test -d ${srcdir}/projects/llvm-poolalloc ; then
134 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
137 dnl Check for all other projects
138 for i in `ls ${srcdir}/projects`
140 if test -d ${srcdir}/projects/${i} ; then
142 sample) AC_CONFIG_SUBDIRS([projects/sample]) ;;
143 privbracket) AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
144 llvm-stacker) AC_CONFIG_SUBDIRS([projects/llvm-stacker]) ;;
145 llvm-reopt) AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
146 llvm-java) AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
147 llvm-tv) AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
148 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
149 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
157 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
163 dnl Disable the build of polly, even if it is checked out into tools/polly.
165 AS_HELP_STRING([--enable-polly],
166 [Use polly if available (default is YES)]),,
169 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
170 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
171 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
172 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
176 dnl Check if polly is checked out into tools/polly and configure it if
178 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
179 AC_SUBST(LLVM_HAS_POLLY,1)
180 AC_CONFIG_SUBDIRS([tools/polly])
183 dnl===-----------------------------------------------------------------------===
185 dnl=== SECTION 2: Architecture, target, and host checks
187 dnl===-----------------------------------------------------------------------===
189 dnl Check the target for which we're compiling and the host that will do the
190 dnl compilations. This will tell us which LLVM compiler will be used for
191 dnl compiling SSA into object code. This needs to be done early because
192 dnl following tests depend on it.
195 dnl Determine the platform type and cache its value. This helps us configure
196 dnl the System library to the correct build platform.
197 AC_CACHE_CHECK([type of operating system we're going to host on],
201 llvm_cv_link_all_option="-Wl,--whole-archive"
202 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
203 llvm_cv_os_type="AIX"
204 llvm_cv_platform_type="Unix" ;;
206 llvm_cv_link_all_option="-Wl,--whole-archive"
207 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
208 llvm_cv_os_type="IRIX"
209 llvm_cv_platform_type="Unix" ;;
211 llvm_cv_link_all_option="-Wl,--whole-archive"
212 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
213 llvm_cv_os_type="Cygwin"
214 llvm_cv_platform_type="Unix" ;;
216 llvm_cv_link_all_option="-Wl,-all_load"
217 llvm_cv_no_link_all_option="-Wl,-noall_load"
218 llvm_cv_os_type="Darwin"
219 llvm_cv_platform_type="Unix" ;;
221 llvm_cv_link_all_option="-Wl,-all_load"
222 llvm_cv_no_link_all_option="-Wl,-noall_load"
223 llvm_cv_os_type="Minix"
224 llvm_cv_platform_type="Unix" ;;
226 llvm_cv_link_all_option="-Wl,--whole-archive"
227 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
228 llvm_cv_os_type="FreeBSD"
229 llvm_cv_platform_type="Unix" ;;
231 llvm_cv_link_all_option="-Wl,--whole-archive"
232 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
233 llvm_cv_os_type="GNU/kFreeBSD"
234 llvm_cv_platform_type="Unix" ;;
236 llvm_cv_link_all_option="-Wl,--whole-archive"
237 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
238 llvm_cv_os_type="OpenBSD"
239 llvm_cv_platform_type="Unix" ;;
241 llvm_cv_link_all_option="-Wl,--whole-archive"
242 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
243 llvm_cv_os_type="NetBSD"
244 llvm_cv_platform_type="Unix" ;;
246 llvm_cv_link_all_option="-Wl,--whole-archive"
247 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
248 llvm_cv_os_type="DragonFly"
249 llvm_cv_platform_type="Unix" ;;
251 llvm_cv_link_all_option="-Wl,--whole-archive"
252 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
253 llvm_cv_os_type="HP-UX"
254 llvm_cv_platform_type="Unix" ;;
256 llvm_cv_link_all_option="-Wl,--whole-archive"
257 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
258 llvm_cv_os_type="Interix"
259 llvm_cv_platform_type="Unix" ;;
261 llvm_cv_link_all_option="-Wl,--whole-archive"
262 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
263 llvm_cv_os_type="Linux"
264 llvm_cv_platform_type="Unix" ;;
266 llvm_cv_link_all_option="-Wl,--whole-archive"
267 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
268 llvm_cv_os_type="GNU"
269 llvm_cv_platform_type="Unix" ;;
271 llvm_cv_link_all_option="-Wl,-z,allextract"
272 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
273 llvm_cv_os_type="SunOS"
274 llvm_cv_platform_type="Unix" ;;
276 llvm_cv_link_all_option="-Wl,-z,allextract"
277 llvm_cv_link_all_option="-Wl,-z,defaultextract"
278 llvm_cv_os_type="AuroraUX"
279 llvm_cv_platform_type="Unix" ;;
281 llvm_cv_link_all_option="-Wl,--whole-archive"
282 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
283 llvm_cv_os_type="Win32"
284 llvm_cv_platform_type="Win32" ;;
286 llvm_cv_link_all_option="-Wl,--whole-archive"
287 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
288 llvm_cv_os_type="MingW"
289 llvm_cv_platform_type="Win32" ;;
291 llvm_cv_link_all_option="-Wl,--whole-archive"
292 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
293 llvm_cv_os_type="Haiku"
294 llvm_cv_platform_type="Unix" ;;
296 llvm_cv_link_all_option="-Wl,--whole-archive"
297 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
298 llvm_cv_os_type="Freestanding"
299 llvm_cv_platform_type="Unix" ;;
301 llvm_cv_link_all_option="-Wl,--whole-archive"
302 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
303 llvm_cv_os_type="Freestanding"
304 llvm_cv_platform_type="Unix" ;;
306 llvm_cv_link_all_option=""
307 llvm_cv_no_link_all_option=""
308 llvm_cv_os_type="Unknown"
309 llvm_cv_platform_type="Unknown" ;;
312 AC_CACHE_CHECK([type of operating system we're going to target],
313 [llvm_cv_target_os_type],
316 llvm_cv_target_os_type="AIX" ;;
318 llvm_cv_target_os_type="IRIX" ;;
320 llvm_cv_target_os_type="Cygwin" ;;
322 llvm_cv_target_os_type="Darwin" ;;
324 llvm_cv_target_os_type="Minix" ;;
326 llvm_cv_target_os_type="FreeBSD" ;;
328 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
330 llvm_cv_target_os_type="OpenBSD" ;;
332 llvm_cv_target_os_type="NetBSD" ;;
334 llvm_cv_target_os_type="DragonFly" ;;
336 llvm_cv_target_os_type="HP-UX" ;;
338 llvm_cv_target_os_type="Interix" ;;
340 llvm_cv_target_os_type="Linux" ;;
342 llvm_cv_target_os_type="GNU" ;;
344 llvm_cv_target_os_type="SunOS" ;;
346 llvm_cv_target_os_type="AuroraUX" ;;
348 llvm_cv_target_os_type="Win32" ;;
350 llvm_cv_target_os_type="MingW" ;;
352 llvm_cv_target_os_type="Haiku" ;;
354 llvm_cv_target_os_type="RTEMS" ;;
356 llvm_cv_target_os_type="NativeClient" ;;
358 llvm_cv_target_os_type="Freestanding" ;;
360 llvm_cv_target_os_type="Unknown" ;;
363 dnl Make sure we aren't attempting to configure for an unknown system
364 if test "$llvm_cv_os_type" = "Unknown" ; then
365 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
368 dnl Set the "OS" Makefile variable based on the platform type so the
369 dnl makefile can configure itself to specific build hosts
370 AC_SUBST(OS,$llvm_cv_os_type)
371 AC_SUBST(HOST_OS,$llvm_cv_os_type)
372 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
374 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
375 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
376 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
378 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
379 dnl This is used by lib/Support to determine the basic kind of implementation
381 case $llvm_cv_platform_type in
383 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
384 AC_SUBST(LLVM_ON_UNIX,[1])
385 AC_SUBST(LLVM_ON_WIN32,[0])
388 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
389 AC_SUBST(LLVM_ON_UNIX,[0])
390 AC_SUBST(LLVM_ON_WIN32,[1])
394 dnl Determine what our target architecture is and configure accordingly.
395 dnl This will allow Makefiles to make a distinction between the hardware and
397 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
399 i?86-*) llvm_cv_target_arch="x86" ;;
400 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
401 sparc*-*) llvm_cv_target_arch="Sparc" ;;
402 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
403 arm*-*) llvm_cv_target_arch="ARM" ;;
404 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
405 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
406 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
407 xcore-*) llvm_cv_target_arch="XCore" ;;
408 msp430-*) llvm_cv_target_arch="MSP430" ;;
409 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
410 mblaze-*) llvm_cv_target_arch="MBlaze" ;;
411 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
412 s390x-*) llvm_cv_target_arch="SystemZ" ;;
413 *) llvm_cv_target_arch="Unknown" ;;
416 if test "$llvm_cv_target_arch" = "Unknown" ; then
417 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
420 dnl Determine the LLVM native architecture for the target
421 case "$llvm_cv_target_arch" in
422 x86) LLVM_NATIVE_ARCH="X86" ;;
423 x86_64) LLVM_NATIVE_ARCH="X86" ;;
424 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
427 dnl Define a substitution, ARCH, for the target architecture
428 AC_SUBST(ARCH,$llvm_cv_target_arch)
430 dnl Determine what our host architecture.
431 dnl This will allow MCJIT regress tests runs only for supported
434 i?86-*) host_arch="x86" ;;
435 amd64-* | x86_64-*) host_arch="x86_64" ;;
436 sparc*-*) host_arch="Sparc" ;;
437 powerpc*-*) host_arch="PowerPC" ;;
438 arm*-*) host_arch="ARM" ;;
439 aarch64*-*) host_arch="AArch64" ;;
440 mips-* | mips64-*) host_arch="Mips" ;;
441 mipsel-* | mips64el-*) host_arch="Mips" ;;
442 xcore-*) host_arch="XCore" ;;
443 msp430-*) host_arch="MSP430" ;;
444 hexagon-*) host_arch="Hexagon" ;;
445 mblaze-*) host_arch="MBlaze" ;;
446 s390x-*) host_arch="SystemZ" ;;
447 *) host_arch="Unknown" ;;
450 if test "$host_arch" = "Unknown" ; then
451 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
454 AC_SUBST(HOST_ARCH,$host_arch)
456 dnl Check for the endianness of the target
457 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
459 dnl Check for build platform executable suffix if we're cross-compiling
460 if test "$cross_compiling" = yes; then
461 AC_SUBST(LLVM_CROSS_COMPILING, [1])
463 ac_build_prefix=${build_alias}-
464 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
465 if test -z "$BUILD_CXX"; then
466 AC_CHECK_PROG(BUILD_CXX, g++, g++)
467 if test -z "$BUILD_CXX"; then
468 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
472 AC_SUBST(LLVM_CROSS_COMPILING, [0])
475 dnl Check to see if there's a .svn or .git directory indicating that this
476 dnl build is being done from a checkout. This sets up several defaults for
477 dnl the command line switches. When we build with a checkout directory,
478 dnl we get a debug with assertions turned on. Without, we assume a source
479 dnl release and we get an optimized build without assertions.
480 dnl See --enable-optimized and --enable-assertions below
481 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
484 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
490 dnl===-----------------------------------------------------------------------===
492 dnl=== SECTION 3: Command line arguments for the configure script.
494 dnl===-----------------------------------------------------------------------===
496 dnl --enable-libcpp : check whether or not to use libc++ on the command line
497 AC_ARG_ENABLE(libcpp,
498 AS_HELP_STRING([--enable-libcpp],
499 [Use libc++ if available (default is NO)]),,
502 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
503 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
504 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
505 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
508 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
510 AS_HELP_STRING([--enable-cxx11],
511 [Use c++11 if available (default is NO)]),,
514 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
515 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
516 default) AC_SUBST(ENABLE_CXX11,[0]);;
517 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
520 dnl --enable-fission : check whether or not to use -gsplit-dwarf on the command
522 AC_ARG_ENABLE(split-dwarf,
523 AS_HELP_STRING([--enable-split-dwarf],
524 [Use split-dwarf if available (default is NO)]),,
527 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
528 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
529 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
530 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
533 dnl --enable-clang-arcmt: check whether to enable clang arcmt
535 AC_ARG_ENABLE(clang-arcmt,
536 AS_HELP_STRING([--enable-clang-arcmt],
537 [Enable building of clang ARCMT (default is YES)]),
538 clang_arcmt="$enableval",
541 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
542 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
543 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
544 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
547 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
548 clang_static_analyzer="yes"
549 AC_ARG_ENABLE(clang-static-analyzer,
550 AS_HELP_STRING([--enable-clang-static-analyzer],
551 [Enable building of clang Static Analyzer (default is YES)]),
552 clang_static_analyzer="$enableval",
555 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
556 no) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0]) ;;
557 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
558 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
561 dnl --enable-clang-rewriter: check whether to enable clang rewriter
562 AC_ARG_ENABLE(clang-rewriter,
563 AS_HELP_STRING([--enable-clang-rewriter],
564 [Enable building of clang rewriter (default is YES)]),,
567 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
569 if test ${clang_arcmt} != "no" ; then
570 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
572 if test ${clang_static_analyzer} != "no" ; then
573 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
575 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
577 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
578 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
581 dnl --enable-optimized : check whether they want to do an optimized build:
582 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
583 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
584 if test ${enableval} = "no" ; then
585 AC_SUBST(ENABLE_OPTIMIZED,[[]])
587 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
590 dnl --enable-profiling : check whether they want to do a profile build:
591 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
592 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
593 if test ${enableval} = "no" ; then
594 AC_SUBST(ENABLE_PROFILING,[[]])
596 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
599 dnl --enable-assertions : check whether they want to turn on assertions or not:
600 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
601 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
602 if test ${enableval} = "yes" ; then
603 AC_SUBST(DISABLE_ASSERTIONS,[[]])
605 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
608 dnl --enable-werror : check whether we want Werror on by default
609 AC_ARG_ENABLE(werror,AS_HELP_STRING(
610 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
612 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
613 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
614 default) AC_SUBST(ENABLE_WERROR,[0]);;
615 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
618 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
619 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
620 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
621 if test ${enableval} = "yes" ; then
622 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
623 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
625 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
626 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
629 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
630 AC_ARG_ENABLE(debug-runtime,
631 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
632 if test ${enableval} = "no" ; then
633 AC_SUBST(DEBUG_RUNTIME,[[]])
635 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
638 dnl --enable-debug-symbols : should even optimized compiler libraries
639 dnl have debug symbols?
640 AC_ARG_ENABLE(debug-symbols,
641 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)
642 if test ${enableval} = "no" ; then
643 AC_SUBST(DEBUG_SYMBOLS,[[]])
645 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
648 dnl --enable-keep-symbols : do not strip installed executables
649 AC_ARG_ENABLE(keep-symbols,
650 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
651 if test ${enableval} = "no" ; then
652 AC_SUBST(KEEP_SYMBOLS,[[]])
654 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
657 dnl --enable-jit: check whether they want to enable the jit
659 AS_HELP_STRING(--enable-jit,
660 [Enable Just In Time Compiling (default is YES)]),,
662 if test ${enableval} = "no"
666 case "$llvm_cv_target_arch" in
667 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
668 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
669 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
670 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
671 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
672 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
673 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
674 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
675 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
676 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
677 MBlaze) AC_SUBST(TARGET_HAS_JIT,0) ;;
678 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
679 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
680 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
684 dnl Allow enablement of building and installing docs
686 AS_HELP_STRING([--enable-docs],
687 [Build documents (default is YES)]),,
690 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
691 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
692 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
693 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
696 dnl Allow enablement of doxygen generated documentation
697 AC_ARG_ENABLE(doxygen,
698 AS_HELP_STRING([--enable-doxygen],
699 [Build doxygen documentation (default is NO)]),,
702 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
703 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
704 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
705 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
708 dnl Allow disablement of threads
709 AC_ARG_ENABLE(threads,
710 AS_HELP_STRING([--enable-threads],
711 [Use threads if available (default is YES)]),,
714 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
715 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
716 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
717 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
719 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
720 [Define if threads enabled])
722 dnl Allow disablement of pthread.h
723 AC_ARG_ENABLE(pthreads,
724 AS_HELP_STRING([--enable-pthreads],
725 [Use pthreads if available (default is YES)]),,
728 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
729 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
730 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
731 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
734 dnl Allow disablement of zlib
736 AS_HELP_STRING([--enable-zlib],
737 [Use zlib for compression/decompression if
738 available (default is YES)]),,
741 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
742 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
743 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
744 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
746 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
747 [Define if zlib is enabled])
749 dnl Allow building without position independent code
751 AS_HELP_STRING([--enable-pic],
752 [Build LLVM with Position Independent Code (default is YES)]),,
755 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
756 no) AC_SUBST(ENABLE_PIC,[0]) ;;
757 default) AC_SUBST(ENABLE_PIC,[1]) ;;
758 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
760 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
761 [Define if position independent code is enabled])
763 dnl Allow building a shared library and linking tools against it.
764 AC_ARG_ENABLE(shared,
765 AS_HELP_STRING([--enable-shared],
766 [Build a shared library and link tools against it (default is NO)]),,
769 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
770 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
771 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
772 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
775 dnl Allow libstdc++ is embedded in LLVM.dll.
776 AC_ARG_ENABLE(embed-stdcxx,
777 AS_HELP_STRING([--enable-embed-stdcxx],
778 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
781 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
782 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
783 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
784 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
787 dnl Enable embedding timestamp information into build.
788 AC_ARG_ENABLE(timestamps,
789 AS_HELP_STRING([--enable-timestamps],
790 [Enable embedding timestamp information in build (default is YES)]),,
793 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
794 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
795 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
796 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
798 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
799 [Define if timestamp information (e.g., __DATE__) is allowed])
801 dnl Enable embedding timestamp information into build.
803 AC_ARG_ENABLE(backtraces,
804 AS_HELP_STRING([--enable-backtraces],
805 [Enable embedding backtraces on crash (default is YES)]),,
808 yes) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
809 no) AC_SUBST(ENABLE_BACKTRACES,[0]) ;;
810 default) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
811 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
813 AC_DEFINE_UNQUOTED([ENABLE_BACKTRACES],$ENABLE_BACKTRACES,
814 [Define if you want backtraces on crash])
816 dnl Allow specific targets to be specified for building (or not)
818 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
819 [Build specific host targets: all or target1,target2,... Valid targets are:
820 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
821 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
823 if test "$enableval" = host-only ; then
827 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend MBlaze NVPTX Hexagon SystemZ R600" ;;
828 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
830 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
831 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
832 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
833 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
834 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
835 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
836 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
837 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
838 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
839 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
840 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
841 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
842 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
843 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
844 mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
845 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
846 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
847 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
848 host) case "$llvm_cv_target_arch" in
849 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
850 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
851 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
852 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
853 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
854 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
855 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
856 MBlaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
857 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
858 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
859 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
860 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
861 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
862 *) AC_MSG_ERROR([Can not set target to build]) ;;
864 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
870 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
871 [Build experimental host targets: disable or target1,target2,...
872 (default=disable)]),,
875 if test ${enableval} != "disable"
877 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
880 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
882 dnl Determine whether we are building LLVM support for the native architecture.
883 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
884 for a_target in $TARGETS_TO_BUILD; do
885 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
886 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
887 [LLVM architecture name for the native architecture, if available])
888 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
889 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
890 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
891 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
892 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
893 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
895 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
896 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
898 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
899 [LLVM name for the native Target init function, if available])
900 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
901 [LLVM name for the native TargetInfo init function, if available])
902 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
903 [LLVM name for the native target MC init function, if available])
904 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
905 [LLVM name for the native AsmPrinter init function, if available])
906 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
907 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
908 [LLVM name for the native AsmParser init function, if available])
910 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
911 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
912 [LLVM name for the native Disassembler init function, if available])
917 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
918 dnl target feature def files.
920 LLVM_ENUM_ASM_PRINTERS=""
921 LLVM_ENUM_ASM_PARSERS=""
922 LLVM_ENUM_DISASSEMBLERS=""
923 for target_to_build in $TARGETS_TO_BUILD; do
924 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
925 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
926 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
928 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
929 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
931 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
932 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
935 AC_SUBST(LLVM_ENUM_TARGETS)
936 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
937 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
938 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
940 dnl Override the option to use for optimized builds.
941 AC_ARG_WITH(optimize-option,
942 AS_HELP_STRING([--with-optimize-option],
943 [Select the compiler options to use for optimized builds]),,
945 AC_MSG_CHECKING([optimization flags])
948 case "$llvm_cv_os_type" in
949 FreeBSD) optimize_option=-O2 ;;
950 MingW) optimize_option=-O2 ;;
951 *) optimize_option=-O3 ;;
953 *) optimize_option="$withval" ;;
955 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
956 AC_MSG_RESULT([$optimize_option])
958 dnl Specify extra build options
959 AC_ARG_WITH(extra-options,
960 AS_HELP_STRING([--with-extra-options],
961 [Specify additional options to compile LLVM with]),,
964 default) EXTRA_OPTIONS= ;;
965 *) EXTRA_OPTIONS=$withval ;;
967 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
969 dnl Specify extra linker build options
970 AC_ARG_WITH(extra-ld-options,
971 AS_HELP_STRING([--with-extra-ld-options],
972 [Specify additional options to link LLVM with]),,
975 default) EXTRA_LD_OPTIONS= ;;
976 *) EXTRA_LD_OPTIONS=$withval ;;
978 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
980 dnl Allow specific bindings to be specified for building (or not)
981 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
982 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
986 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
987 all ) BINDINGS_TO_BUILD="ocaml" ;;
988 none | no) BINDINGS_TO_BUILD="" ;;
989 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
991 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
992 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
998 dnl Allow the ocaml libdir to be overridden. This could go in a configure
999 dnl script for bindings/ocaml/configure, except that its auto value depends on
1000 dnl OCAMLC, which is found here to support tests.
1001 AC_ARG_WITH([ocaml-libdir],
1002 [AS_HELP_STRING([--with-ocaml-libdir],
1003 [Specify install location for ocaml bindings (default is stdlib)])],
1007 auto) with_ocaml_libdir="$withval" ;;
1008 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1009 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1012 AC_ARG_WITH(clang-srcdir,
1013 AS_HELP_STRING([--with-clang-srcdir],
1014 [Directory to the out-of-tree Clang source]),,
1017 -) clang_src_root="" ;;
1018 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1019 *) clang_src_root="$ac_pwd/$withval" ;;
1021 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1023 AC_ARG_WITH(clang-resource-dir,
1024 AS_HELP_STRING([--with-clang-resource-dir],
1025 [Relative directory from the Clang binary for resource files]),,
1027 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1028 [Relative directory for resource files])
1030 AC_ARG_WITH(c-include-dirs,
1031 AS_HELP_STRING([--with-c-include-dirs],
1032 [Colon separated list of directories clang will search for headers]),,
1034 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1035 [Directories clang will search for headers])
1037 # Clang normally uses the system c++ headers and libraries. With this option,
1038 # clang will use the ones provided by a gcc installation instead. This option should
1039 # be passed the same value that was used with --prefix when configuring gcc.
1040 AC_ARG_WITH(gcc-toolchain,
1041 AS_HELP_STRING([--with-gcc-toolchain],
1042 [Directory where gcc is installed.]),,
1044 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1045 [Directory where gcc is installed.])
1047 AC_ARG_WITH(default-sysroot,
1048 AS_HELP_STRING([--with-default-sysroot],
1049 [Add --sysroot=<path> to all compiler invocations.]),,
1051 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1052 [Default <path> to all compiler invocations for --sysroot=<path>.])
1054 dnl Allow linking of LLVM with GPLv3 binutils code.
1055 AC_ARG_WITH(binutils-include,
1056 AS_HELP_STRING([--with-binutils-include],
1057 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1060 default) WITH_BINUTILS_INCDIR=default ;;
1061 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1062 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1064 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1065 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1066 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1067 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1068 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1072 dnl Specify the URL where bug reports should be submitted.
1073 AC_ARG_WITH(bug-report-url,
1074 AS_HELP_STRING([--with-bug-report-url],
1075 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1076 withval="http://llvm.org/bugs/")
1077 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1080 dnl --enable-libffi : check whether the user wants to turn off libffi:
1081 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1082 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1083 [case "$enableval" in
1084 yes) llvm_cv_enable_libffi="yes" ;;
1085 no) llvm_cv_enable_libffi="no" ;;
1086 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1088 llvm_cv_enable_libffi=no)
1090 AC_ARG_WITH(internal-prefix,
1091 AS_HELP_STRING([--with-internal-prefix],
1092 [Installation directory for internal files]),,
1094 AC_SUBST(INTERNAL_PREFIX,[$withval])
1096 dnl===-----------------------------------------------------------------------===
1098 dnl=== SECTION 4: Check for programs we need and that they are the right version
1100 dnl===-----------------------------------------------------------------------===
1105 dnl Check for the tools that the makefiles require
1108 AC_PATH_PROG(CMP, [cmp], [cmp])
1109 AC_PATH_PROG(CP, [cp], [cp])
1110 AC_PATH_PROG(DATE, [date], [date])
1111 AC_PATH_PROG(FIND, [find], [find])
1112 AC_PATH_PROG(GREP, [grep], [grep])
1113 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1114 AC_PATH_PROG(MV, [mv], [mv])
1116 AC_CHECK_TOOL(AR, ar, false)
1117 AC_PATH_PROG(RM, [rm], [rm])
1118 AC_PATH_PROG(SED, [sed], [sed])
1119 AC_PATH_PROG(TAR, [tar], [gtar])
1120 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1122 dnl Looking for misc. graph plotting software
1123 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1124 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1125 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1126 dnl If we're targeting for mingw we should emit windows paths, not msys
1127 if test "$llvm_cv_os_type" = "MingW" ; then
1128 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1130 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1131 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1133 AC_PATH_PROG(DOT, [dot], [echo dot])
1134 if test "$DOT" != "echo dot" ; then
1135 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1136 dnl If we're targeting for mingw we should emit windows paths, not msys
1137 if test "$llvm_cv_os_type" = "MingW" ; then
1138 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1140 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1141 [Define to path to dot program if found or 'echo dot' otherwise])
1143 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1144 if test "$FDP" != "echo fdp" ; then
1145 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1146 dnl If we're targeting for mingw we should emit windows paths, not msys
1147 if test "$llvm_cv_os_type" = "MingW" ; then
1148 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1150 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1151 [Define to path to fdp program if found or 'echo fdp' otherwise])
1153 AC_PATH_PROG(NEATO, [neato], [echo neato])
1154 if test "$NEATO" != "echo neato" ; then
1155 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1156 dnl If we're targeting for mingw we should emit windows paths, not msys
1157 if test "$llvm_cv_os_type" = "MingW" ; then
1158 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1160 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1161 [Define to path to neato program if found or 'echo neato' otherwise])
1163 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1164 if test "$TWOPI" != "echo twopi" ; then
1165 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1166 dnl If we're targeting for mingw we should emit windows paths, not msys
1167 if test "$llvm_cv_os_type" = "MingW" ; then
1168 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1170 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1171 [Define to path to twopi program if found or 'echo twopi' otherwise])
1173 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1174 if test "$CIRCO" != "echo circo" ; then
1175 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1176 dnl If we're targeting for mingw we should emit windows paths, not msys
1177 if test "$llvm_cv_os_type" = "MingW" ; then
1178 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1180 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1181 [Define to path to circo program if found or 'echo circo' otherwise])
1183 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1184 if test "$GV" != "echo gv" ; then
1185 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1186 dnl If we're targeting for mingw we should emit windows paths, not msys
1187 if test "$llvm_cv_os_type" = "MingW" ; then
1188 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1190 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1191 [Define to path to gv program if found or 'echo gv' otherwise])
1193 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1194 if test "$DOTTY" != "echo dotty" ; then
1195 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1196 dnl If we're targeting for mingw we should emit windows paths, not msys
1197 if test "$llvm_cv_os_type" = "MingW" ; then
1198 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1200 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1201 [Define to path to dotty program if found or 'echo dotty' otherwise])
1203 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1204 if test "$XDOT" != "echo xdot" ; then
1205 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1206 dnl If we're targeting for mingw we should emit windows paths, not msys
1207 if test "$llvm_cv_os_type" = "MingW" ; then
1208 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1210 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1211 [Define to path to xdot program if found or 'echo xdot' otherwise])
1214 dnl Find the install program
1216 dnl Prepend src dir to install path dir if it's a relative path
1217 dnl This is a hack for installs that take place in something other
1218 dnl than the top level.
1220 [[\\/$]]* | ?:[[\\/]]* ) ;;
1221 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1224 dnl Checks for documentation and testing tools that we can do without. If these
1225 dnl are not found then they are set to "true" which always succeeds but does
1226 dnl nothing. This just lets the build output show that we could have done
1227 dnl something if the tool was available.
1228 AC_PATH_PROG(BZIP2, [bzip2])
1229 AC_PATH_PROG(CAT, [cat])
1230 AC_PATH_PROG(DOXYGEN, [doxygen])
1231 AC_PATH_PROG(GROFF, [groff])
1232 AC_PATH_PROG(GZIPBIN, [gzip])
1233 AC_PATH_PROG(PDFROFF, [pdfroff])
1234 AC_PATH_PROG(ZIP, [zip])
1235 AC_PATH_PROGS(OCAMLC, [ocamlc])
1236 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1237 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1238 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1239 AC_PATH_PROGS(GAS, [gas as])
1241 dnl Get the version of the linker in use.
1244 dnl Determine whether the linker supports the -R option.
1247 dnl Determine whether the linker supports the -export-dynamic option.
1248 AC_LINK_EXPORT_DYNAMIC
1250 dnl Determine whether the linker supports the --version-script option.
1251 AC_LINK_VERSION_SCRIPT
1253 dnl Check for libtool and the library that has dlopen function (which must come
1254 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1259 AC_MSG_CHECKING([tool compatibility])
1261 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1262 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1263 dnl to support those options.
1264 dnl "icc" emits gcc signatures
1265 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1277 if test "$GCC" != "yes" && test "$ICC" != "yes"
1279 AC_MSG_ERROR([gcc|icc required but not found])
1282 dnl Ensure that compilation tools are compatible with GCC extensions
1283 if test "$GXX" != "yes" && test "$IXX" != "yes"
1285 AC_MSG_ERROR([g++|clang++|icc required but not found])
1288 dnl Verify that GCC is version 3.0 or higher
1289 if test "$GCC" = "yes"
1294 #if !defined(__GNUC__) || __GNUC__ < 3
1295 #error Unsupported GCC version
1299 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1302 dnl Check for GNU Make. We use its extensions, so don't build without it
1303 if test -z "$llvm_cv_gnu_make_command"
1305 AC_MSG_ERROR([GNU Make required but not found])
1308 dnl Tool compatibility is okay if we make it here.
1311 dnl Check optional compiler flags.
1312 AC_MSG_CHECKING([optional compiler flags])
1313 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1314 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1315 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1317 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1318 dnl false positives, so disable it.
1320 NO_MAYBE_UNINITIALIZED=
1321 if test "$GXX" = "yes"
1323 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1324 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1325 dnl known to be uninitialized from cases which might be uninitialized. We
1326 dnl still want to catch the first kind of errors.
1327 if test -z "$NO_MAYBE_UNINITIALIZED"
1329 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1332 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1334 AC_ARG_WITH([python],
1335 [AS_HELP_STRING([--with-python], [path to python])],
1336 [PYTHON="$withval"])
1338 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1339 AC_MSG_CHECKING([for python])
1340 AC_MSG_RESULT([user defined: $with_python])
1342 if test -n "$PYTHON" ; then
1343 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1346 AC_PATH_PROG([PYTHON], [python python2 python26],
1347 [AC_MSG_RESULT([not found])
1348 AC_MSG_ERROR([could not find python 2.5 or higher])])
1351 AC_MSG_CHECKING([for python >= 2.5])
1352 ac_python_version=`$PYTHON -c 'import sys; print sys.version.split()[[0]]'`
1353 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1354 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1355 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1356 if test "$ac_python_version_major" -eq "2" \
1357 && test "$ac_python_version_minor" -ge "5" ; then
1358 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1360 AC_MSG_RESULT([not found])
1361 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1364 dnl===-----------------------------------------------------------------------===
1366 dnl=== SECTION 5: Check for libraries
1368 dnl===-----------------------------------------------------------------------===
1371 if test "$llvm_cv_os_type" = "MingW" ; then
1372 AC_CHECK_LIB(imagehlp, main)
1373 AC_CHECK_LIB(psapi, main)
1376 dnl dlopen() is required for plugin support.
1377 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1378 [Define if dlopen() is available on this platform.]),
1379 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1381 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1382 dnl macros to detect whether clock_gettime is available, this just finds the
1383 dnl right libraries to link with.
1384 AC_SEARCH_LIBS(clock_gettime,rt)
1386 dnl libffi is optional; used to call external functions from the interpreter
1387 if test "$llvm_cv_enable_libffi" = "yes" ; then
1388 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1389 [Define if libffi is available on this platform.]),
1390 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1393 dnl mallinfo is optional; the code can compile (minus features) without it
1394 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1395 [Define if mallinfo() is available on this platform.]))
1397 dnl pthread locking functions are optional - but llvm will not be thread-safe
1399 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1400 AC_CHECK_LIB(pthread, pthread_mutex_init)
1401 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1402 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1403 [Have pthread_mutex_lock]))
1404 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1405 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1406 [Have pthread_rwlock_init]))
1407 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1408 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1409 [Have pthread_getspecific]))
1412 dnl zlib is optional; used for compression/uncompression
1413 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1414 AC_CHECK_LIB(z, compress2)
1417 dnl Allow extra x86-disassembler library
1419 AS_HELP_STRING([--with-udis86=<path>],
1420 [Use udis86 external x86 disassembler library]),
1422 AC_SUBST(USE_UDIS86, [1])
1425 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1427 AC_CHECK_LIB(udis86, ud_init, [], [
1428 echo "Error! You need to have libudis86 around."
1432 AC_SUBST(USE_UDIS86, [0]))
1433 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1434 [Define if use udis86 library])
1436 dnl Allow OProfile support for JIT output.
1437 AC_ARG_WITH(oprofile,
1438 AS_HELP_STRING([--with-oprofile=<prefix>],
1439 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1441 AC_SUBST(USE_OPROFILE, [1])
1443 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1445 AC_SUBST(USE_OPROFILE, [0]) ;;
1446 *) llvm_cv_oppath="${withval}/lib/oprofile"
1447 CPPFLAGS="-I${withval}/include";;
1449 case $llvm_cv_os_type in
1451 if test -n "$llvm_cv_oppath" ; then
1452 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1453 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1454 dnl libbfd is not included properly in libopagent in some Debian
1455 dnl versions. If libbfd isn't found at all, we assume opagent works
1457 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1458 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1459 echo "Error! You need to have libopagent around."
1462 AC_CHECK_HEADER([opagent.h], [], [
1463 echo "Error! You need to have opagent.h around."
1468 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1472 AC_SUBST(USE_OPROFILE, [0])
1474 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1475 [Define if we have the oprofile JIT-support library])
1477 dnl Enable support for Intel JIT Events API.
1478 AC_ARG_WITH(intel-jitevents,
1479 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1482 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1483 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1484 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1487 case $llvm_cv_os_type in
1488 Linux|Win32|Cygwin|MingW) ;;
1489 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1492 case "$llvm_cv_target_arch" in
1494 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1498 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1500 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1501 [Define if we have the Intel JIT API runtime support library])
1503 dnl Check for libxml2
1504 dnl Right now we're just checking for the existence, we could also check for a
1505 dnl particular version via --version on xml2-config
1506 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1508 AC_MSG_CHECKING(for libxml2 includes)
1509 if test "x$XML2CONFIG" = "x"; then
1510 AC_MSG_RESULT(xml2-config not found)
1512 LIBXML2_INC=`$XML2CONFIG --cflags`
1513 AC_MSG_RESULT($LIBXML2_INC)
1514 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1515 LIBXML2_LIBS="-lxml2"])
1517 AC_SUBST(LIBXML2_LIBS)
1518 AC_SUBST(LIBXML2_INC)
1520 dnl===-----------------------------------------------------------------------===
1522 dnl=== SECTION 6: Check for header files
1524 dnl===-----------------------------------------------------------------------===
1526 dnl First, use autoconf provided macros for specific headers that we need
1527 dnl We don't check for ancient stuff or things that are guaranteed to be there
1528 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1529 dnl Generally we're looking for POSIX headers.
1531 AC_HEADER_MMAP_ANONYMOUS
1537 AC_CHECK_HEADERS([cxxabi.h])
1539 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
1540 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1541 AC_CHECK_HEADERS([utime.h windows.h])
1542 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1543 AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
1544 AC_CHECK_HEADERS([valgrind/valgrind.h])
1545 AC_CHECK_HEADERS([fenv.h])
1546 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1547 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1548 AC_CHECK_HEADERS(pthread.h,
1549 AC_SUBST(HAVE_PTHREAD, 1),
1550 AC_SUBST(HAVE_PTHREAD, 0))
1552 AC_SUBST(HAVE_PTHREAD, 0)
1554 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1555 AC_CHECK_HEADERS(zlib.h,
1556 AC_SUBST(HAVE_LIBZ, 1),
1557 AC_SUBST(HAVE_LIBZ, 0))
1559 AC_SUBST(HAVE_LIBZ, 0)
1562 dnl Try to find ffi.h.
1563 if test "$llvm_cv_enable_libffi" = "yes" ; then
1564 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1567 dnl Try to find Darwin specific crash reporting libraries.
1568 AC_CHECK_HEADERS([CrashReporterClient.h])
1570 dnl Try to find Darwin specific crash reporting global.
1571 AC_MSG_CHECKING([__crashreporter_info__])
1575 extern const char *__crashreporter_info__;
1577 __crashreporter_info__ = "test";
1583 AC_MSG_RESULT([yes])
1584 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1588 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1591 dnl===-----------------------------------------------------------------------===
1593 dnl=== SECTION 7: Check for types and structures
1595 dnl===-----------------------------------------------------------------------===
1600 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1602 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1603 AC_CHECK_TYPES([uint64_t],,
1604 AC_CHECK_TYPES([u_int64_t],,
1605 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1607 dnl===-----------------------------------------------------------------------===
1609 dnl=== SECTION 8: Check for specific functions needed
1611 dnl===-----------------------------------------------------------------------===
1613 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1614 AC_CHECK_FUNCS([powf fmodf strtof round ])
1615 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1616 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1617 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1618 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit strdup ])
1619 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1620 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1621 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1622 AC_CHECK_FUNCS([futimes futimens])
1626 dnl Check the declaration "Secure API" on Windows environments.
1627 AC_CHECK_DECLS([strerror_s])
1629 dnl Check symbols in libgcc.a for JIT on Mingw.
1630 if test "$llvm_cv_os_type" = "MingW" ; then
1631 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1632 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1633 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1634 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1636 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1637 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1638 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1639 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1640 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1641 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1642 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1643 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1644 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1645 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1647 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1648 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1651 dnl Check Win32 API EnumerateLoadedModules.
1652 if test "$llvm_cv_os_type" = "MingW" ; then
1653 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1657 #include <windows.h>
1658 #include <imagehlp.h>
1659 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1660 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1664 AC_MSG_RESULT([yes])
1665 llvm_cv_win32_elmcb_pcstr="PCSTR"
1669 llvm_cv_win32_elmcb_pcstr="PSTR"
1671 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1674 dnl Check for variations in the Standard C++ library and STL. These macros are
1675 dnl provided by LLVM in the autoconf/m4 directory.
1679 dnl Check for mmap support.We also need to know if /dev/zero is required to
1680 dnl be opened for allocating RWX memory.
1681 dnl Make sure we aren't attempting to configure for an unknown system
1682 if test "$llvm_cv_platform_type" = "Unix" ; then
1685 AC_NEED_DEV_ZERO_FOR_MMAP
1687 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1689 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1691 if test "$ac_cv_func_mmap_file" = "no"
1693 AC_MSG_WARN([mmap() of files required but not found])
1697 dnl atomic builtins are required for threading support.
1698 AC_MSG_CHECKING(for GCC atomic builtins)
1699 dnl Since we'll be using these atomic builtins in C++ files we should test
1700 dnl the C++ compiler.
1706 volatile unsigned long val = 1;
1707 __sync_synchronize();
1708 __sync_val_compare_and_swap(&val, 1, 0);
1709 __sync_add_and_fetch(&val, 1);
1710 __sync_sub_and_fetch(&val, 1);
1716 AC_MSG_RESULT([yes])
1717 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1721 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1722 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1726 dnl===-----------------------------------------------------------------------===
1728 dnl=== SECTION 9: Additional checks, variables, etc.
1730 dnl===-----------------------------------------------------------------------===
1732 dnl Handle 32-bit linux systems running a 64-bit kernel.
1733 dnl This has to come after section 4 because it invokes the compiler.
1734 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1736 if test "$llvm_cv_linux_mixed" = "yes"; then
1737 llvm_cv_target_arch="x86"
1742 dnl Check whether __dso_handle is present
1743 AC_CHECK_FUNCS([__dso_handle])
1745 dnl Propagate the shared library extension that the libltdl checks did to
1746 dnl the Makefiles so we can use it there too
1747 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1749 dnl Propagate the run-time library path variable that the libltdl
1750 dnl checks found to the Makefiles so we can use it there too
1751 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1753 dnl Translate the various configuration directories and other basic
1754 dnl information into substitutions that will end up in Makefile.config.in
1755 dnl that these configured values can be used by the makefiles
1756 if test "${prefix}" = "NONE" ; then
1759 eval LLVM_PREFIX="${prefix}";
1760 eval LLVM_BINDIR="${prefix}/bin";
1761 eval LLVM_DATADIR="${prefix}/share/llvm";
1762 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1763 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1764 eval LLVM_INCLUDEDIR="${prefix}/include";
1765 eval LLVM_INFODIR="${prefix}/info";
1766 eval LLVM_MANDIR="${prefix}/man";
1767 LLVM_CONFIGTIME=`date`
1768 AC_SUBST(LLVM_PREFIX)
1769 AC_SUBST(LLVM_BINDIR)
1770 AC_SUBST(LLVM_DATADIR)
1771 AC_SUBST(LLVM_DOCSDIR)
1772 AC_SUBST(LLVM_ETCDIR)
1773 AC_SUBST(LLVM_INCLUDEDIR)
1774 AC_SUBST(LLVM_INFODIR)
1775 AC_SUBST(LLVM_MANDIR)
1776 AC_SUBST(LLVM_CONFIGTIME)
1778 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1779 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1780 LLVM_CONFIGTIME="(timestamp not enabled)"
1783 dnl Place the various directories into the config.h file as #defines so that we
1784 dnl can know about the installation paths within LLVM.
1785 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1786 [Installation prefix directory])
1787 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1788 [Installation directory for binary executables])
1789 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1790 [Installation directory for data files])
1791 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1792 [Installation directory for documentation])
1793 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1794 [Installation directory for config files])
1795 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1796 [Installation directory for include files])
1797 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1798 [Installation directory for .info files])
1799 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1800 [Installation directory for man pages])
1801 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1802 [Time at which LLVM was configured])
1803 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1804 [Host triple LLVM will be executed on])
1805 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1806 [Target triple LLVM will generate code for by default])
1808 dnl Determine which bindings to build.
1809 if test "$BINDINGS_TO_BUILD" = auto ; then
1810 BINDINGS_TO_BUILD=""
1811 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1812 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1815 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1817 dnl This isn't really configurey, but it avoids having to repeat the list in
1819 AC_SUBST(ALL_BINDINGS,ocaml)
1821 dnl Do any work necessary to ensure that bindings have what they need.
1822 binding_prereqs_failed=0
1823 for a_binding in $BINDINGS_TO_BUILD ; do
1824 case "$a_binding" in
1826 if test "x$OCAMLC" = x ; then
1827 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1828 binding_prereqs_failed=1
1830 if test "x$OCAMLDEP" = x ; then
1831 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1832 binding_prereqs_failed=1
1834 if test "x$OCAMLOPT" = x ; then
1835 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1836 dnl ocamlopt is optional!
1838 if test "x$with_ocaml_libdir" != xauto ; then
1839 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1841 ocaml_stdlib="`"$OCAMLC" -where`"
1842 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1844 # ocaml stdlib is beneath our prefix; use stdlib
1845 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1847 # ocaml stdlib is outside our prefix; use libdir/ocaml
1848 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1854 if test "$binding_prereqs_failed" = 1 ; then
1855 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1858 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1859 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1861 dnl Determine linker rpath flag
1862 if test "$llvm_cv_link_use_r" = "yes" ; then
1869 dnl Determine linker rdynamic flag
1870 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1871 RDYNAMIC="-Wl,-export-dynamic"
1877 dnl===-----------------------------------------------------------------------===
1879 dnl=== SECTION 10: Specify the output files and generate it
1881 dnl===-----------------------------------------------------------------------===
1883 dnl Configure header files
1884 dnl WARNING: dnl If you add or remove any of the following config headers, then
1885 dnl you MUST also update Makefile so that the variable FilesToConfig
1886 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1887 dnl files can be updated automatically when their *.in sources change.
1888 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1889 AH_TOP([#ifndef CONFIG_H
1893 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1894 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1895 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1896 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1897 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1899 dnl Configure the makefile's configuration data
1900 AC_CONFIG_FILES([Makefile.config])
1902 dnl Configure the RPM spec file for LLVM
1903 AC_CONFIG_FILES([llvm.spec])
1905 dnl Configure doxygen's configuration file
1906 AC_CONFIG_FILES([docs/doxygen.cfg])
1908 dnl Configure clang, if present
1909 if test "${clang_src_root}" = ""; then
1910 clang_src_root="$srcdir/tools/clang"
1912 if test -f ${clang_src_root}/README.txt; then
1913 dnl Use variables to stay under 80 columns.
1914 configh="include/clang/Config/config.h"
1915 doxy="docs/doxygen.cfg"
1916 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1917 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1920 dnl OCaml findlib META file
1921 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1923 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1924 test "x$program_prefix" = "xNONE" && program_prefix=""
1925 AC_SUBST([program_prefix])
1928 dnl Do special configuration of Makefiles
1929 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1930 AC_CONFIG_MAKEFILE(Makefile)
1931 AC_CONFIG_MAKEFILE(Makefile.common)
1932 AC_CONFIG_MAKEFILE(examples/Makefile)
1933 AC_CONFIG_MAKEFILE(lib/Makefile)
1934 AC_CONFIG_MAKEFILE(runtime/Makefile)
1935 AC_CONFIG_MAKEFILE(test/Makefile)
1936 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1937 AC_CONFIG_MAKEFILE(unittests/Makefile)
1938 AC_CONFIG_MAKEFILE(tools/Makefile)
1939 AC_CONFIG_MAKEFILE(utils/Makefile)
1940 AC_CONFIG_MAKEFILE(projects/Makefile)
1941 AC_CONFIG_MAKEFILE(bindings/Makefile)
1942 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1944 dnl Finally, crank out the output