1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl License. See LICENSE.TXT for details.
7 dnl===-----------------------------------------------------------------------===
8 dnl This is the LLVM configuration script. It is processed by the autoconf
9 dnl program to produce a script named configure. This script contains the
10 dnl configuration checks that LLVM needs in order to support multiple platforms.
11 dnl This file is composed of 10 sections per the recommended organization of
12 dnl autoconf input defined in the autoconf documentation. As this file evolves,
13 dnl please keep the various types of checks within their sections. The sections
16 dnl SECTION 1: Initialization & Setup
17 dnl SECTION 2: Architecture, target, and host checks
18 dnl SECTION 3: Command line arguments for the configure script.
19 dnl SECTION 4: Check for programs we need and that they are the right version
20 dnl SECTION 5: Check for libraries
21 dnl SECTION 6: Check for header files
22 dnl SECTION 7: Check for types and structures
23 dnl SECTION 8: Check for specific functions needed
24 dnl SECTION 9: Additional checks, variables, etc.
25 dnl SECTION 10: Specify the output files and generate it
27 dnl===-----------------------------------------------------------------------===
29 dnl=== SECTION 1: Initialization & Setup
31 dnl===-----------------------------------------------------------------------===
32 dnl Initialize autoconf and define the package name, version number and
33 dnl address for reporting bugs.
34 AC_INIT([LLVM],[3.5svn],[http://llvm.org/bugs/])
35 AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
36 AC_DEFINE([LLVM_VERSION_MINOR], [5], [Minor version of the LLVM API])
38 dnl Provide a copyright substitution and ensure the copyright notice is included
39 dnl in the output of --version option of the generated configure script.
40 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
41 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
43 dnl Indicate that we require autoconf 2.60 or later.
46 dnl Verify that the source directory is valid. This makes sure that we are
47 dnl configuring LLVM and not some other package (it validates --srcdir argument)
48 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
50 dnl Place all of the extra autoconf files into the config subdirectory. Tell
51 dnl various tools where the m4 autoconf macros are.
52 AC_CONFIG_AUX_DIR([autoconf])
54 dnl Quit if the source directory has already been configured.
55 dnl NOTE: This relies upon undocumented autoconf behavior.
56 if test ${srcdir} != "." ; then
57 if test -f ${srcdir}/include/llvm/Config/config.h ; then
58 AC_MSG_ERROR([Already configured in ${srcdir}])
62 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
63 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
67 dnl We need to check for the compiler up here to avoid anything else
68 dnl starting with a different one.
70 AC_PROG_CXX(clang++ g++)
73 dnl If CXX is Clang, check that it can find and parse C++ standard library
75 if test "$CXX" = "clang++" ; then
76 AC_MSG_CHECKING([whether clang works])
78 dnl Note that space between 'include' and '(' is required. There's a broken
79 dnl regex in aclocal that otherwise will think that we call m4's include
81 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
82 #if __has_include (<cxxabi.h>)
85 #if __has_include (<unwind.h>)
94 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
99 dnl 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 the LLVM test suite, so configure it next.
113 if test -d ${srcdir}/projects/test-suite ; then
114 AC_CONFIG_SUBDIRS([projects/test-suite])
117 dnl llvm-test is the old name of the test-suite, kept here for backwards
119 if test -d ${srcdir}/projects/llvm-test ; then
120 AC_CONFIG_SUBDIRS([projects/llvm-test])
123 dnl Some projects use poolalloc; configure that next
124 if test -d ${srcdir}/projects/poolalloc ; then
125 AC_CONFIG_SUBDIRS([projects/poolalloc])
128 if test -d ${srcdir}/projects/llvm-poolalloc ; then
129 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
132 dnl Check for all other projects
133 for i in `ls ${srcdir}/projects`
135 if test -d ${srcdir}/projects/${i} ; then
137 sample) AC_CONFIG_SUBDIRS([projects/sample]) ;;
138 privbracket) AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
139 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
146 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
152 dnl Disable the build of polly, even if it is checked out into tools/polly.
154 AS_HELP_STRING([--enable-polly],
155 [Use polly if available (default is YES)]),,
158 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
159 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
160 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
161 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
165 dnl Check if polly is checked out into tools/polly and configure it if
167 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
168 AC_SUBST(LLVM_HAS_POLLY,1)
169 AC_CONFIG_SUBDIRS([tools/polly])
172 dnl===-----------------------------------------------------------------------===
174 dnl=== SECTION 2: Architecture, target, and host checks
176 dnl===-----------------------------------------------------------------------===
178 dnl Check the target for which we're compiling and the host that will do the
179 dnl compilations. This will tell us which LLVM compiler will be used for
180 dnl compiling SSA into object code. This needs to be done early because
181 dnl following tests depend on it.
184 dnl Determine the platform type and cache its value. This helps us configure
185 dnl the System library to the correct build platform.
186 AC_CACHE_CHECK([type of operating system we're going to host on],
190 llvm_cv_link_all_option="-Wl,--whole-archive"
191 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
192 llvm_cv_os_type="AIX"
193 llvm_cv_platform_type="Unix" ;;
195 llvm_cv_link_all_option="-Wl,--whole-archive"
196 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
197 llvm_cv_os_type="IRIX"
198 llvm_cv_platform_type="Unix" ;;
200 llvm_cv_link_all_option="-Wl,--whole-archive"
201 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
202 llvm_cv_os_type="Cygwin"
203 llvm_cv_platform_type="Unix" ;;
205 llvm_cv_link_all_option="-Wl,-all_load"
206 llvm_cv_no_link_all_option="-Wl,-noall_load"
207 llvm_cv_os_type="Darwin"
208 llvm_cv_platform_type="Unix" ;;
210 llvm_cv_link_all_option="-Wl,-all_load"
211 llvm_cv_no_link_all_option="-Wl,-noall_load"
212 llvm_cv_os_type="Minix"
213 llvm_cv_platform_type="Unix" ;;
215 llvm_cv_link_all_option="-Wl,--whole-archive"
216 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
217 llvm_cv_os_type="FreeBSD"
218 llvm_cv_platform_type="Unix" ;;
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="GNU/kFreeBSD"
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="OpenBSD"
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="NetBSD"
233 llvm_cv_platform_type="Unix" ;;
235 llvm_cv_link_all_option="-Wl,--whole-archive"
236 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
237 llvm_cv_os_type="DragonFly"
238 llvm_cv_platform_type="Unix" ;;
240 llvm_cv_link_all_option="-Wl,--whole-archive"
241 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
242 llvm_cv_os_type="HP-UX"
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="Interix"
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="Linux"
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="GNU"
258 llvm_cv_platform_type="Unix" ;;
260 llvm_cv_link_all_option="-Wl,-z,allextract"
261 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
262 llvm_cv_os_type="SunOS"
263 llvm_cv_platform_type="Unix" ;;
265 llvm_cv_link_all_option="-Wl,-z,allextract"
266 llvm_cv_link_all_option="-Wl,-z,defaultextract"
267 llvm_cv_os_type="AuroraUX"
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="Win32"
273 llvm_cv_platform_type="Win32" ;;
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="MingW"
278 llvm_cv_platform_type="Win32" ;;
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="Haiku"
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="Freestanding"
288 llvm_cv_platform_type="Unix" ;;
290 llvm_cv_link_all_option="-Wl,--whole-archive"
291 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
292 llvm_cv_os_type="Freestanding"
293 llvm_cv_platform_type="Unix" ;;
295 llvm_cv_link_all_option=""
296 llvm_cv_no_link_all_option=""
297 llvm_cv_os_type="Unknown"
298 llvm_cv_platform_type="Unknown" ;;
301 AC_CACHE_CHECK([type of operating system we're going to target],
302 [llvm_cv_target_os_type],
305 llvm_cv_target_os_type="AIX" ;;
307 llvm_cv_target_os_type="IRIX" ;;
309 llvm_cv_target_os_type="Cygwin" ;;
311 llvm_cv_target_os_type="Darwin" ;;
313 llvm_cv_target_os_type="Minix" ;;
315 llvm_cv_target_os_type="FreeBSD" ;;
317 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
319 llvm_cv_target_os_type="OpenBSD" ;;
321 llvm_cv_target_os_type="NetBSD" ;;
323 llvm_cv_target_os_type="DragonFly" ;;
325 llvm_cv_target_os_type="HP-UX" ;;
327 llvm_cv_target_os_type="Interix" ;;
329 llvm_cv_target_os_type="Linux" ;;
331 llvm_cv_target_os_type="GNU" ;;
333 llvm_cv_target_os_type="SunOS" ;;
335 llvm_cv_target_os_type="AuroraUX" ;;
337 llvm_cv_target_os_type="Win32" ;;
339 llvm_cv_target_os_type="MingW" ;;
341 llvm_cv_target_os_type="Haiku" ;;
343 llvm_cv_target_os_type="RTEMS" ;;
345 llvm_cv_target_os_type="NativeClient" ;;
347 llvm_cv_target_os_type="Freestanding" ;;
349 llvm_cv_target_os_type="Unknown" ;;
352 dnl Make sure we aren't attempting to configure for an unknown system
353 if test "$llvm_cv_os_type" = "Unknown" ; then
354 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
357 dnl Set the "OS" Makefile variable based on the platform type so the
358 dnl makefile can configure itself to specific build hosts
359 AC_SUBST(OS,$llvm_cv_os_type)
360 AC_SUBST(HOST_OS,$llvm_cv_os_type)
361 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
363 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
364 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
365 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
367 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
368 dnl This is used by lib/Support to determine the basic kind of implementation
370 case $llvm_cv_platform_type in
372 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
373 AC_SUBST(LLVM_ON_UNIX,[1])
374 AC_SUBST(LLVM_ON_WIN32,[0])
377 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
378 AC_SUBST(LLVM_ON_UNIX,[0])
379 AC_SUBST(LLVM_ON_WIN32,[1])
383 dnl Determine what our target architecture is and configure accordingly.
384 dnl This will allow Makefiles to make a distinction between the hardware and
386 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
388 i?86-*) llvm_cv_target_arch="x86" ;;
389 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
390 sparc*-*) llvm_cv_target_arch="Sparc" ;;
391 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
392 arm*-*) llvm_cv_target_arch="ARM" ;;
393 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
394 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
395 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
396 xcore-*) llvm_cv_target_arch="XCore" ;;
397 msp430-*) llvm_cv_target_arch="MSP430" ;;
398 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
399 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
400 s390x-*) llvm_cv_target_arch="SystemZ" ;;
401 *) llvm_cv_target_arch="Unknown" ;;
404 if test "$llvm_cv_target_arch" = "Unknown" ; then
405 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
408 dnl Determine the LLVM native architecture for the target
409 case "$llvm_cv_target_arch" in
410 x86) LLVM_NATIVE_ARCH="X86" ;;
411 x86_64) LLVM_NATIVE_ARCH="X86" ;;
412 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
415 dnl Define a substitution, ARCH, for the target architecture
416 AC_SUBST(ARCH,$llvm_cv_target_arch)
418 dnl Determine what our host architecture.
419 dnl This will allow MCJIT regress tests runs only for supported
422 i?86-*) host_arch="x86" ;;
423 amd64-* | x86_64-*) host_arch="x86_64" ;;
424 sparc*-*) host_arch="Sparc" ;;
425 powerpc*-*) host_arch="PowerPC" ;;
426 arm*-*) host_arch="ARM" ;;
427 aarch64*-*) host_arch="AArch64" ;;
428 mips-* | mips64-*) host_arch="Mips" ;;
429 mipsel-* | mips64el-*) host_arch="Mips" ;;
430 xcore-*) host_arch="XCore" ;;
431 msp430-*) host_arch="MSP430" ;;
432 hexagon-*) host_arch="Hexagon" ;;
433 s390x-*) host_arch="SystemZ" ;;
434 *) host_arch="Unknown" ;;
437 if test "$host_arch" = "Unknown" ; then
438 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
441 AC_SUBST(HOST_ARCH,$host_arch)
443 dnl Check for build platform executable suffix if we're cross-compiling
444 if test "$cross_compiling" = yes; then
445 AC_SUBST(LLVM_CROSS_COMPILING, [1])
447 ac_build_prefix=${build_alias}-
448 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
449 if test -z "$BUILD_CXX"; then
450 AC_CHECK_PROG(BUILD_CXX, g++, g++)
451 if test -z "$BUILD_CXX"; then
452 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
456 AC_SUBST(LLVM_CROSS_COMPILING, [0])
459 dnl Check to see if there's a .svn or .git directory indicating that this
460 dnl build is being done from a checkout. This sets up several defaults for
461 dnl the command line switches. When we build with a checkout directory,
462 dnl we get a debug with assertions turned on. Without, we assume a source
463 dnl release and we get an optimized build without assertions.
464 dnl See --enable-optimized and --enable-assertions below
465 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
468 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
474 dnl===-----------------------------------------------------------------------===
476 dnl=== SECTION 3: Command line arguments for the configure script.
478 dnl===-----------------------------------------------------------------------===
480 dnl --enable-libcpp : check whether or not to use libc++ on the command line
481 AC_ARG_ENABLE(libcpp,
482 AS_HELP_STRING([--enable-libcpp],
483 [Use libc++ if available (default is NO)]),,
486 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
487 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
488 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
489 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
492 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
494 AS_HELP_STRING([--enable-cxx11],
495 [Use c++11 if available (default is NO)]),,
498 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
499 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
500 default) AC_SUBST(ENABLE_CXX11,[0]);;
501 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
504 dnl --enable-fission : check whether or not to use -gsplit-dwarf on the command
506 AC_ARG_ENABLE(split-dwarf,
507 AS_HELP_STRING([--enable-split-dwarf],
508 [Use split-dwarf if available (default is NO)]),,
511 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
512 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
513 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
514 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
517 dnl --enable-clang-arcmt: check whether to enable clang arcmt
519 AC_ARG_ENABLE(clang-arcmt,
520 AS_HELP_STRING([--enable-clang-arcmt],
521 [Enable building of clang ARCMT (default is YES)]),
522 clang_arcmt="$enableval",
525 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
526 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
527 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
528 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
531 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
532 clang_static_analyzer="yes"
533 AC_ARG_ENABLE(clang-static-analyzer,
534 AS_HELP_STRING([--enable-clang-static-analyzer],
535 [Enable building of clang Static Analyzer (default is YES)]),
536 clang_static_analyzer="$enableval",
539 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
541 if test ${clang_arcmt} != "no" ; then
542 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
544 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
546 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
547 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
550 dnl --enable-clang-rewriter: check whether to enable clang rewriter
551 AC_ARG_ENABLE(clang-rewriter,
552 AS_HELP_STRING([--enable-clang-rewriter],
553 [Enable building of clang rewriter (default is YES)]),,
556 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
558 if test ${clang_arcmt} != "no" ; then
559 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
561 if test ${clang_static_analyzer} != "no" ; then
562 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
564 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
566 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
567 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
570 dnl --enable-optimized : check whether they want to do an optimized build:
571 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
572 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
573 if test ${enableval} = "no" ; then
574 AC_SUBST(ENABLE_OPTIMIZED,[[]])
576 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
579 dnl --enable-profiling : check whether they want to do a profile build:
580 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
581 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
582 if test ${enableval} = "no" ; then
583 AC_SUBST(ENABLE_PROFILING,[[]])
585 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
588 dnl --enable-assertions : check whether they want to turn on assertions or not:
589 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
590 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
591 if test ${enableval} = "yes" ; then
592 AC_SUBST(DISABLE_ASSERTIONS,[[]])
594 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
597 dnl --enable-werror : check whether we want Werror on by default
598 AC_ARG_ENABLE(werror,AS_HELP_STRING(
599 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
601 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
602 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
603 default) AC_SUBST(ENABLE_WERROR,[0]);;
604 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
607 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
608 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
609 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
610 if test ${enableval} = "yes" ; then
611 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
612 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
614 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
615 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
618 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
619 AC_ARG_ENABLE(debug-runtime,
620 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
621 if test ${enableval} = "no" ; then
622 AC_SUBST(DEBUG_RUNTIME,[[]])
624 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
627 dnl --enable-debug-symbols : should even optimized compiler libraries
628 dnl have debug symbols?
629 AC_ARG_ENABLE(debug-symbols,
630 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)
631 if test ${enableval} = "no" ; then
632 AC_SUBST(DEBUG_SYMBOLS,[[]])
634 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
637 dnl --enable-keep-symbols : do not strip installed executables
638 AC_ARG_ENABLE(keep-symbols,
639 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
640 if test ${enableval} = "no" ; then
641 AC_SUBST(KEEP_SYMBOLS,[[]])
643 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
646 dnl --enable-jit: check whether they want to enable the jit
648 AS_HELP_STRING(--enable-jit,
649 [Enable Just In Time Compiling (default is YES)]),,
651 if test ${enableval} = "no"
655 case "$llvm_cv_target_arch" in
656 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
657 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
658 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
659 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
660 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
661 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
662 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
663 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
664 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
665 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
666 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
667 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
668 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
672 dnl Allow enablement of building and installing docs
674 AS_HELP_STRING([--enable-docs],
675 [Build documents (default is YES)]),,
678 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
679 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
680 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
681 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
684 dnl Allow enablement of doxygen generated documentation
685 AC_ARG_ENABLE(doxygen,
686 AS_HELP_STRING([--enable-doxygen],
687 [Build doxygen documentation (default is NO)]),,
690 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
691 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
692 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
693 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
696 dnl Allow disablement of threads
697 AC_ARG_ENABLE(threads,
698 AS_HELP_STRING([--enable-threads],
699 [Use threads if available (default is YES)]),,
702 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
703 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
704 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
705 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
707 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
708 [Define if threads enabled])
710 dnl Allow disablement of pthread.h
711 AC_ARG_ENABLE(pthreads,
712 AS_HELP_STRING([--enable-pthreads],
713 [Use pthreads if available (default is YES)]),,
716 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
717 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
718 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
719 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
722 dnl Allow disablement of zlib
724 AS_HELP_STRING([--enable-zlib],
725 [Use zlib for compression/decompression if
726 available (default is YES)]),,
729 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
730 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
731 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
732 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
734 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
735 [Define if zlib is enabled])
737 dnl Allow building without position independent code
739 AS_HELP_STRING([--enable-pic],
740 [Build LLVM with Position Independent Code (default is YES)]),,
743 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
744 no) AC_SUBST(ENABLE_PIC,[0]) ;;
745 default) AC_SUBST(ENABLE_PIC,[1]) ;;
746 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
748 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
749 [Define if position independent code is enabled])
751 dnl Allow building a shared library and linking tools against it.
752 AC_ARG_ENABLE(shared,
753 AS_HELP_STRING([--enable-shared],
754 [Build a shared library and link tools against it (default is NO)]),,
757 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
758 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
759 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
760 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
763 dnl Allow libstdc++ is embedded in LLVM.dll.
764 AC_ARG_ENABLE(embed-stdcxx,
765 AS_HELP_STRING([--enable-embed-stdcxx],
766 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
769 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
770 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
771 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
772 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
775 dnl Enable embedding timestamp information into build.
776 AC_ARG_ENABLE(timestamps,
777 AS_HELP_STRING([--enable-timestamps],
778 [Enable embedding timestamp information in build (default is YES)]),,
781 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
782 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
783 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
784 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
786 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
787 [Define if timestamp information (e.g., __DATE__) is allowed])
789 dnl Enable support for showing backtraces.
790 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
791 [--enable-backtraces],
792 [Enable embedding backtraces on crash (default is YES)]),
793 [case "$enableval" in
794 yes) llvm_cv_enable_backtraces="yes" ;;
795 no) llvm_cv_enable_backtraces="no" ;;
796 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
798 llvm_cv_enable_backtraces="yes")
799 if test "$llvm_cv_enable_backtraces" = "yes" ; then
800 AC_DEFINE([ENABLE_BACKTRACES],[1],
801 [Define if you want backtraces on crash])
804 dnl Enable installing platform specific signal handling overrides, for improved
805 dnl CrashRecovery support or interaction with crash reporting software. This
806 dnl support may be inappropriate for some clients embedding LLVM as a library.
807 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
808 [--enable-crash-overrides],
809 [Enable crash handling overrides (default is YES)]),
810 [case "$enableval" in
811 yes) llvm_cv_enable_crash_overrides="yes" ;;
812 no) llvm_cv_enable_crash_overrides="no" ;;
813 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
815 llvm_cv_enable_crash_overrides="yes")
816 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
817 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
818 [Define to enable crash handling overrides])
821 dnl Allow specific targets to be specified for building (or not)
823 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
824 [Build specific host targets: all or target1,target2,... Valid targets are:
825 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
826 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
828 if test "$enableval" = host-only ; then
832 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" ;;
833 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
835 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
836 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
837 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
838 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
839 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
840 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
841 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
842 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
843 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
844 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
845 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
846 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
847 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
848 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
849 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
850 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
851 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
852 host) case "$llvm_cv_target_arch" in
853 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
854 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
855 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
856 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
857 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
858 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
859 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
860 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
861 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
862 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
863 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
864 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
865 *) AC_MSG_ERROR([Can not set target to build]) ;;
867 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
873 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
874 [Build experimental host targets: disable or target1,target2,...
875 (default=disable)]),,
878 if test ${enableval} != "disable"
880 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
883 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
885 dnl Determine whether we are building LLVM support for the native architecture.
886 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
887 for a_target in $TARGETS_TO_BUILD; do
888 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
889 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
890 [LLVM architecture name for the native architecture, if available])
891 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
892 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
893 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
894 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
895 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
896 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
898 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
899 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
901 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
902 [LLVM name for the native Target init function, if available])
903 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
904 [LLVM name for the native TargetInfo init function, if available])
905 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
906 [LLVM name for the native target MC init function, if available])
907 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
908 [LLVM name for the native AsmPrinter init function, if available])
909 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
910 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
911 [LLVM name for the native AsmParser init function, if available])
913 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
914 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
915 [LLVM name for the native Disassembler init function, if available])
920 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
921 dnl target feature def files.
923 LLVM_ENUM_ASM_PRINTERS=""
924 LLVM_ENUM_ASM_PARSERS=""
925 LLVM_ENUM_DISASSEMBLERS=""
926 for target_to_build in $TARGETS_TO_BUILD; do
927 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
928 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
929 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
931 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
932 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
934 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
935 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
938 AC_SUBST(LLVM_ENUM_TARGETS)
939 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
940 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
941 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
943 dnl Override the option to use for optimized builds.
944 AC_ARG_WITH(optimize-option,
945 AS_HELP_STRING([--with-optimize-option],
946 [Select the compiler options to use for optimized builds]),,
948 AC_MSG_CHECKING([optimization flags])
951 case "$llvm_cv_os_type" in
952 FreeBSD) optimize_option=-O2 ;;
953 MingW) optimize_option=-O2 ;;
954 *) optimize_option=-O3 ;;
956 *) optimize_option="$withval" ;;
958 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
959 AC_MSG_RESULT([$optimize_option])
961 dnl Specify extra build options
962 AC_ARG_WITH(extra-options,
963 AS_HELP_STRING([--with-extra-options],
964 [Specify additional options to compile LLVM with]),,
967 default) EXTRA_OPTIONS= ;;
968 *) EXTRA_OPTIONS=$withval ;;
970 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
972 dnl Specify extra linker build options
973 AC_ARG_WITH(extra-ld-options,
974 AS_HELP_STRING([--with-extra-ld-options],
975 [Specify additional options to link LLVM with]),,
978 default) EXTRA_LD_OPTIONS= ;;
979 *) EXTRA_LD_OPTIONS=$withval ;;
981 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
983 dnl Allow specific bindings to be specified for building (or not)
984 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
985 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
989 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
990 all ) BINDINGS_TO_BUILD="ocaml" ;;
991 none | no) BINDINGS_TO_BUILD="" ;;
992 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
994 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
995 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1001 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1002 dnl script for bindings/ocaml/configure, except that its auto value depends on
1003 dnl OCAMLC, which is found here to support tests.
1004 AC_ARG_WITH([ocaml-libdir],
1005 [AS_HELP_STRING([--with-ocaml-libdir],
1006 [Specify install location for ocaml bindings (default is stdlib)])],
1010 auto) with_ocaml_libdir="$withval" ;;
1011 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1012 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1015 AC_ARG_WITH(clang-srcdir,
1016 AS_HELP_STRING([--with-clang-srcdir],
1017 [Directory to the out-of-tree Clang source]),,
1020 -) clang_src_root="" ;;
1021 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1022 *) clang_src_root="$ac_pwd/$withval" ;;
1024 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1026 AC_ARG_WITH(clang-resource-dir,
1027 AS_HELP_STRING([--with-clang-resource-dir],
1028 [Relative directory from the Clang binary for resource files]),,
1030 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1031 [Relative directory for resource files])
1033 AC_ARG_WITH(c-include-dirs,
1034 AS_HELP_STRING([--with-c-include-dirs],
1035 [Colon separated list of directories clang will search for headers]),,
1037 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1038 [Directories clang will search for headers])
1040 # Clang normally uses the system c++ headers and libraries. With this option,
1041 # clang will use the ones provided by a gcc installation instead. This option should
1042 # be passed the same value that was used with --prefix when configuring gcc.
1043 AC_ARG_WITH(gcc-toolchain,
1044 AS_HELP_STRING([--with-gcc-toolchain],
1045 [Directory where gcc is installed.]),,
1047 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1048 [Directory where gcc is installed.])
1050 AC_ARG_WITH(default-sysroot,
1051 AS_HELP_STRING([--with-default-sysroot],
1052 [Add --sysroot=<path> to all compiler invocations.]),,
1054 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1055 [Default <path> to all compiler invocations for --sysroot=<path>.])
1057 dnl Allow linking of LLVM with GPLv3 binutils code.
1058 AC_ARG_WITH(binutils-include,
1059 AS_HELP_STRING([--with-binutils-include],
1060 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1063 default) WITH_BINUTILS_INCDIR=default ;;
1064 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1065 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1067 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1068 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1069 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1070 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1071 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1075 dnl Specify the URL where bug reports should be submitted.
1076 AC_ARG_WITH(bug-report-url,
1077 AS_HELP_STRING([--with-bug-report-url],
1078 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1079 withval="http://llvm.org/bugs/")
1080 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1083 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1084 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1085 [--enable-terminfo],
1086 [Query the terminfo database if available (default is YES)]),
1087 [case "$enableval" in
1088 yes) llvm_cv_enable_terminfo="yes" ;;
1089 no) llvm_cv_enable_terminfo="no" ;;
1090 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1092 llvm_cv_enable_terminfo="yes")
1094 dnl --enable-libffi : check whether the user wants to turn off libffi:
1095 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1096 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1097 [case "$enableval" in
1098 yes) llvm_cv_enable_libffi="yes" ;;
1099 no) llvm_cv_enable_libffi="no" ;;
1100 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1102 llvm_cv_enable_libffi=no)
1104 AC_ARG_WITH(internal-prefix,
1105 AS_HELP_STRING([--with-internal-prefix],
1106 [Installation directory for internal files]),,
1108 AC_SUBST(INTERNAL_PREFIX,[$withval])
1110 dnl===-----------------------------------------------------------------------===
1112 dnl=== SECTION 4: Check for programs we need and that they are the right version
1114 dnl===-----------------------------------------------------------------------===
1119 dnl Check for the tools that the makefiles require
1122 AC_PATH_PROG(CMP, [cmp], [cmp])
1123 AC_PATH_PROG(CP, [cp], [cp])
1124 AC_PATH_PROG(DATE, [date], [date])
1125 AC_PATH_PROG(FIND, [find], [find])
1126 AC_PATH_PROG(GREP, [grep], [grep])
1127 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1128 AC_PATH_PROG(MV, [mv], [mv])
1130 AC_CHECK_TOOL(AR, ar, false)
1131 AC_PATH_PROG(RM, [rm], [rm])
1132 AC_PATH_PROG(SED, [sed], [sed])
1133 AC_PATH_PROG(TAR, [tar], [gtar])
1134 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1136 dnl Looking for misc. graph plotting software
1137 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1138 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1139 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1140 dnl If we're targeting for mingw we should emit windows paths, not msys
1141 if test "$llvm_cv_os_type" = "MingW" ; then
1142 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1144 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1145 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1147 AC_PATH_PROG(DOT, [dot], [echo dot])
1148 if test "$DOT" != "echo dot" ; then
1149 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1150 dnl If we're targeting for mingw we should emit windows paths, not msys
1151 if test "$llvm_cv_os_type" = "MingW" ; then
1152 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1154 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1155 [Define to path to dot program if found or 'echo dot' otherwise])
1157 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1158 if test "$FDP" != "echo fdp" ; then
1159 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1160 dnl If we're targeting for mingw we should emit windows paths, not msys
1161 if test "$llvm_cv_os_type" = "MingW" ; then
1162 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1164 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1165 [Define to path to fdp program if found or 'echo fdp' otherwise])
1167 AC_PATH_PROG(NEATO, [neato], [echo neato])
1168 if test "$NEATO" != "echo neato" ; then
1169 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1170 dnl If we're targeting for mingw we should emit windows paths, not msys
1171 if test "$llvm_cv_os_type" = "MingW" ; then
1172 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1174 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1175 [Define to path to neato program if found or 'echo neato' otherwise])
1177 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1178 if test "$TWOPI" != "echo twopi" ; then
1179 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1180 dnl If we're targeting for mingw we should emit windows paths, not msys
1181 if test "$llvm_cv_os_type" = "MingW" ; then
1182 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1184 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1185 [Define to path to twopi program if found or 'echo twopi' otherwise])
1187 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1188 if test "$CIRCO" != "echo circo" ; then
1189 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1190 dnl If we're targeting for mingw we should emit windows paths, not msys
1191 if test "$llvm_cv_os_type" = "MingW" ; then
1192 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1194 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1195 [Define to path to circo program if found or 'echo circo' otherwise])
1197 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1198 if test "$GV" != "echo gv" ; then
1199 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1200 dnl If we're targeting for mingw we should emit windows paths, not msys
1201 if test "$llvm_cv_os_type" = "MingW" ; then
1202 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1204 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1205 [Define to path to gv program if found or 'echo gv' otherwise])
1207 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1208 if test "$DOTTY" != "echo dotty" ; then
1209 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1210 dnl If we're targeting for mingw we should emit windows paths, not msys
1211 if test "$llvm_cv_os_type" = "MingW" ; then
1212 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1214 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1215 [Define to path to dotty program if found or 'echo dotty' otherwise])
1217 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1218 if test "$XDOT" != "echo xdot" ; then
1219 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1220 dnl If we're targeting for mingw we should emit windows paths, not msys
1221 if test "$llvm_cv_os_type" = "MingW" ; then
1222 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1224 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1225 [Define to path to xdot program if found or 'echo xdot' otherwise])
1228 dnl Find the install program
1230 dnl Prepend src dir to install path dir if it's a relative path
1231 dnl This is a hack for installs that take place in something other
1232 dnl than the top level.
1234 [[\\/$]]* | ?:[[\\/]]* ) ;;
1235 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1238 dnl Checks for documentation and testing tools that we can do without. If these
1239 dnl are not found then they are set to "true" which always succeeds but does
1240 dnl nothing. This just lets the build output show that we could have done
1241 dnl something if the tool was available.
1242 AC_PATH_PROG(BZIP2, [bzip2])
1243 AC_PATH_PROG(CAT, [cat])
1244 AC_PATH_PROG(DOXYGEN, [doxygen])
1245 AC_PATH_PROG(GROFF, [groff])
1246 AC_PATH_PROG(GZIPBIN, [gzip])
1247 AC_PATH_PROG(PDFROFF, [pdfroff])
1248 AC_PATH_PROG(ZIP, [zip])
1249 AC_PATH_PROGS(OCAMLC, [ocamlc])
1250 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1251 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1252 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1253 AC_PATH_PROGS(GAS, [gas as])
1255 dnl Get the version of the linker in use.
1258 dnl Determine whether the linker supports the -R option.
1261 dnl Determine whether the compiler supports the -rdynamic option.
1262 AC_LINK_EXPORT_DYNAMIC
1264 dnl Determine whether the linker supports the --version-script option.
1265 AC_LINK_VERSION_SCRIPT
1267 dnl Check for libtool and the library that has dlopen function (which must come
1268 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1273 AC_MSG_CHECKING([tool compatibility])
1275 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1276 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1277 dnl to support those options.
1278 dnl "icc" emits gcc signatures
1279 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1291 if test "$GCC" != "yes" && test "$ICC" != "yes"
1293 AC_MSG_ERROR([gcc|icc required but not found])
1296 dnl Ensure that compilation tools are compatible with GCC extensions
1297 if test "$GXX" != "yes" && test "$IXX" != "yes"
1299 AC_MSG_ERROR([g++|clang++|icc required but not found])
1302 dnl Verify that GCC is version 3.0 or higher
1303 if test "$GCC" = "yes"
1308 #if !defined(__GNUC__) || __GNUC__ < 3
1309 #error Unsupported GCC version
1313 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1316 dnl Check for GNU Make. We use its extensions, so don't build without it
1317 if test -z "$llvm_cv_gnu_make_command"
1319 AC_MSG_ERROR([GNU Make required but not found])
1322 dnl Tool compatibility is okay if we make it here.
1325 dnl Check optional compiler flags.
1326 AC_MSG_CHECKING([optional compiler flags])
1327 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1328 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1329 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1331 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1332 dnl false positives, so disable it.
1334 NO_MAYBE_UNINITIALIZED=
1335 if test "$GXX" = "yes"
1337 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1338 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1339 dnl known to be uninitialized from cases which might be uninitialized. We
1340 dnl still want to catch the first kind of errors.
1341 if test -z "$NO_MAYBE_UNINITIALIZED"
1343 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1346 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1348 AC_ARG_WITH([python],
1349 [AS_HELP_STRING([--with-python], [path to python])],
1350 [PYTHON="$withval"])
1352 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1353 AC_MSG_CHECKING([for python])
1354 AC_MSG_RESULT([user defined: $with_python])
1356 if test -n "$PYTHON" ; then
1357 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1360 AC_PATH_PROG([PYTHON], [python python2 python26],
1361 [AC_MSG_RESULT([not found])
1362 AC_MSG_ERROR([could not find python 2.5 or higher])])
1365 AC_MSG_CHECKING([for python >= 2.5])
1366 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1367 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1368 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1369 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1370 if test "$ac_python_version_major" -gt "2" || \
1371 (test "$ac_python_version_major" -eq "2" && \
1372 test "$ac_python_version_minor" -ge "5") ; then
1373 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1375 AC_MSG_RESULT([not found])
1376 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1379 dnl===-----------------------------------------------------------------------===
1381 dnl=== SECTION 5: Check for libraries
1383 dnl===-----------------------------------------------------------------------===
1386 if test "$llvm_cv_os_type" = "MingW" ; then
1387 AC_CHECK_LIB(imagehlp, main)
1388 AC_CHECK_LIB(psapi, main)
1389 AC_CHECK_LIB(shell32, main)
1392 dnl dlopen() is required for plugin support.
1393 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1394 [Define if dlopen() is available on this platform.]),
1395 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1397 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1398 dnl macros to detect whether clock_gettime is available, this just finds the
1399 dnl right libraries to link with.
1400 AC_SEARCH_LIBS(clock_gettime,rt)
1402 dnl The curses library is optional; used for querying terminal info
1403 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1404 dnl We need the has_color functionality in curses for it to be useful.
1405 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1406 AC_DEFINE([HAVE_TERMINFO],[1],
1407 [Define if the setupterm() function is supported this platform.]))
1410 dnl libffi is optional; used to call external functions from the interpreter
1411 if test "$llvm_cv_enable_libffi" = "yes" ; then
1412 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1413 [Define if libffi is available on this platform.]),
1414 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1417 dnl mallinfo is optional; the code can compile (minus features) without it
1418 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1419 [Define if mallinfo() is available on this platform.]))
1421 dnl pthread locking functions are optional - but llvm will not be thread-safe
1423 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1424 AC_CHECK_LIB(pthread, pthread_mutex_init)
1425 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1426 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1427 [Have pthread_mutex_lock]))
1428 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1429 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1430 [Have pthread_rwlock_init]))
1431 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1432 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1433 [Have pthread_getspecific]))
1436 dnl zlib is optional; used for compression/uncompression
1437 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1438 AC_CHECK_LIB(z, compress2)
1441 dnl Allow extra x86-disassembler library
1443 AS_HELP_STRING([--with-udis86=<path>],
1444 [Use udis86 external x86 disassembler library]),
1446 AC_SUBST(USE_UDIS86, [1])
1449 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1451 AC_CHECK_LIB(udis86, ud_init, [], [
1452 echo "Error! You need to have libudis86 around."
1456 AC_SUBST(USE_UDIS86, [0]))
1457 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1458 [Define if use udis86 library])
1460 dnl Allow OProfile support for JIT output.
1461 AC_ARG_WITH(oprofile,
1462 AS_HELP_STRING([--with-oprofile=<prefix>],
1463 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1465 AC_SUBST(USE_OPROFILE, [1])
1467 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1469 AC_SUBST(USE_OPROFILE, [0]) ;;
1470 *) llvm_cv_oppath="${withval}/lib/oprofile"
1471 CPPFLAGS="-I${withval}/include";;
1473 case $llvm_cv_os_type in
1475 if test -n "$llvm_cv_oppath" ; then
1476 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1477 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1478 dnl libbfd is not included properly in libopagent in some Debian
1479 dnl versions. If libbfd isn't found at all, we assume opagent works
1481 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1482 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1483 echo "Error! You need to have libopagent around."
1486 AC_CHECK_HEADER([opagent.h], [], [
1487 echo "Error! You need to have opagent.h around."
1492 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1496 AC_SUBST(USE_OPROFILE, [0])
1498 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1499 [Define if we have the oprofile JIT-support library])
1501 dnl Enable support for Intel JIT Events API.
1502 AC_ARG_WITH(intel-jitevents,
1503 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1506 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1507 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1508 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1511 case $llvm_cv_os_type in
1512 Linux|Win32|Cygwin|MingW) ;;
1513 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1516 case "$llvm_cv_target_arch" in
1518 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1522 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1524 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1525 [Define if we have the Intel JIT API runtime support library])
1527 dnl Check for libxml2
1528 dnl Right now we're just checking for the existence, we could also check for a
1529 dnl particular version via --version on xml2-config
1530 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1532 AC_MSG_CHECKING(for libxml2 includes)
1533 if test "x$XML2CONFIG" = "x"; then
1534 AC_MSG_RESULT(xml2-config not found)
1536 LIBXML2_INC=`$XML2CONFIG --cflags`
1537 AC_MSG_RESULT($LIBXML2_INC)
1538 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1539 LIBXML2_LIBS="-lxml2"])
1541 AC_SUBST(LIBXML2_LIBS)
1542 AC_SUBST(LIBXML2_INC)
1544 dnl===-----------------------------------------------------------------------===
1546 dnl=== SECTION 6: Check for header files
1548 dnl===-----------------------------------------------------------------------===
1550 dnl First, use autoconf provided macros for specific headers that we need
1551 dnl We don't check for ancient stuff or things that are guaranteed to be there
1552 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1553 dnl Generally we're looking for POSIX headers.
1555 AC_HEADER_MMAP_ANONYMOUS
1561 AC_CHECK_HEADERS([cxxabi.h])
1563 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1564 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1565 AC_CHECK_HEADERS([utime.h])
1566 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1567 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1568 AC_CHECK_HEADERS([valgrind/valgrind.h])
1569 AC_CHECK_HEADERS([fenv.h])
1570 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1571 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1572 AC_CHECK_HEADERS(pthread.h,
1573 AC_SUBST(HAVE_PTHREAD, 1),
1574 AC_SUBST(HAVE_PTHREAD, 0))
1576 AC_SUBST(HAVE_PTHREAD, 0)
1578 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1579 AC_CHECK_HEADERS(zlib.h,
1580 AC_SUBST(HAVE_LIBZ, 1),
1581 AC_SUBST(HAVE_LIBZ, 0))
1583 AC_SUBST(HAVE_LIBZ, 0)
1586 dnl Try to find ffi.h.
1587 if test "$llvm_cv_enable_libffi" = "yes" ; then
1588 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1591 dnl Try to find Darwin specific crash reporting libraries.
1592 AC_CHECK_HEADERS([CrashReporterClient.h])
1594 dnl Try to find Darwin specific crash reporting global.
1595 AC_MSG_CHECKING([__crashreporter_info__])
1599 extern const char *__crashreporter_info__;
1601 __crashreporter_info__ = "test";
1607 AC_MSG_RESULT([yes])
1608 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1612 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1615 dnl===-----------------------------------------------------------------------===
1617 dnl=== SECTION 7: Check for types and structures
1619 dnl===-----------------------------------------------------------------------===
1624 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1626 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1627 AC_CHECK_TYPES([uint64_t],,
1628 AC_CHECK_TYPES([u_int64_t],,
1629 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1631 dnl===-----------------------------------------------------------------------===
1633 dnl=== SECTION 8: Check for specific functions needed
1635 dnl===-----------------------------------------------------------------------===
1637 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1638 AC_CHECK_FUNCS([powf fmodf strtof round ])
1639 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1640 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1641 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1642 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1643 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1644 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1645 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1646 AC_CHECK_FUNCS([futimes futimens])
1650 dnl Check the declaration "Secure API" on Windows environments.
1651 AC_CHECK_DECLS([strerror_s])
1653 dnl Check symbols in libgcc.a for JIT on Mingw.
1654 if test "$llvm_cv_os_type" = "MingW" ; then
1655 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1656 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1657 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1658 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1660 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1661 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1662 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1663 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1664 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1665 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1666 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1667 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1668 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1669 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1671 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1672 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1675 dnl Check Win32 API EnumerateLoadedModules.
1676 if test "$llvm_cv_os_type" = "MingW" ; then
1677 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1681 #include <windows.h>
1682 #include <imagehlp.h>
1683 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1684 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1688 AC_MSG_RESULT([yes])
1689 llvm_cv_win32_elmcb_pcstr="PCSTR"
1693 llvm_cv_win32_elmcb_pcstr="PSTR"
1695 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1698 dnl Check for variations in the Standard C++ library and STL. These macros are
1699 dnl provided by LLVM in the autoconf/m4 directory.
1703 dnl Check for mmap support.We also need to know if /dev/zero is required to
1704 dnl be opened for allocating RWX memory.
1705 dnl Make sure we aren't attempting to configure for an unknown system
1706 if test "$llvm_cv_platform_type" = "Unix" ; then
1709 AC_NEED_DEV_ZERO_FOR_MMAP
1711 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1713 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1715 if test "$ac_cv_func_mmap_file" = "no"
1717 AC_MSG_WARN([mmap() of files required but not found])
1721 dnl atomic builtins are required for threading support.
1722 AC_MSG_CHECKING(for GCC atomic builtins)
1723 dnl Since we'll be using these atomic builtins in C++ files we should test
1724 dnl the C++ compiler.
1730 volatile unsigned long val = 1;
1731 __sync_synchronize();
1732 __sync_val_compare_and_swap(&val, 1, 0);
1733 __sync_add_and_fetch(&val, 1);
1734 __sync_sub_and_fetch(&val, 1);
1740 AC_MSG_RESULT([yes])
1741 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1745 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1746 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1750 dnl===-----------------------------------------------------------------------===
1752 dnl=== SECTION 9: Additional checks, variables, etc.
1754 dnl===-----------------------------------------------------------------------===
1756 dnl Handle 32-bit linux systems running a 64-bit kernel.
1757 dnl This has to come after section 4 because it invokes the compiler.
1758 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1760 if test "$llvm_cv_linux_mixed" = "yes"; then
1761 llvm_cv_target_arch="x86"
1766 dnl Check whether __dso_handle is present
1767 AC_CHECK_FUNCS([__dso_handle])
1769 dnl Propagate the shared library extension that the libltdl checks did to
1770 dnl the Makefiles so we can use it there too
1771 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1773 dnl Propagate the run-time library path variable that the libltdl
1774 dnl checks found to the Makefiles so we can use it there too
1775 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1777 dnl Translate the various configuration directories and other basic
1778 dnl information into substitutions that will end up in Makefile.config.in
1779 dnl that these configured values can be used by the makefiles
1780 if test "${prefix}" = "NONE" ; then
1783 eval LLVM_PREFIX="${prefix}";
1784 eval LLVM_BINDIR="${prefix}/bin";
1785 eval LLVM_DATADIR="${prefix}/share/llvm";
1786 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1787 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1788 eval LLVM_INCLUDEDIR="${prefix}/include";
1789 eval LLVM_INFODIR="${prefix}/info";
1790 eval LLVM_MANDIR="${prefix}/man";
1791 LLVM_CONFIGTIME=`date`
1792 AC_SUBST(LLVM_PREFIX)
1793 AC_SUBST(LLVM_BINDIR)
1794 AC_SUBST(LLVM_DATADIR)
1795 AC_SUBST(LLVM_DOCSDIR)
1796 AC_SUBST(LLVM_ETCDIR)
1797 AC_SUBST(LLVM_INCLUDEDIR)
1798 AC_SUBST(LLVM_INFODIR)
1799 AC_SUBST(LLVM_MANDIR)
1800 AC_SUBST(LLVM_CONFIGTIME)
1802 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1803 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1804 LLVM_CONFIGTIME="(timestamp not enabled)"
1807 dnl Place the various directories into the config.h file as #defines so that we
1808 dnl can know about the installation paths within LLVM.
1809 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1810 [Installation prefix directory])
1811 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1812 [Installation directory for binary executables])
1813 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1814 [Installation directory for data files])
1815 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1816 [Installation directory for documentation])
1817 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1818 [Installation directory for config files])
1819 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1820 [Installation directory for include files])
1821 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1822 [Installation directory for .info files])
1823 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1824 [Installation directory for man pages])
1825 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1826 [Time at which LLVM was configured])
1827 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1828 [Host triple LLVM will be executed on])
1829 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1830 [Target triple LLVM will generate code for by default])
1832 dnl Determine which bindings to build.
1833 if test "$BINDINGS_TO_BUILD" = auto ; then
1834 BINDINGS_TO_BUILD=""
1835 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1836 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1839 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1841 dnl This isn't really configurey, but it avoids having to repeat the list in
1843 AC_SUBST(ALL_BINDINGS,ocaml)
1845 dnl Do any work necessary to ensure that bindings have what they need.
1846 binding_prereqs_failed=0
1847 for a_binding in $BINDINGS_TO_BUILD ; do
1848 case "$a_binding" in
1850 if test "x$OCAMLC" = x ; then
1851 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1852 binding_prereqs_failed=1
1854 if test "x$OCAMLDEP" = x ; then
1855 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1856 binding_prereqs_failed=1
1858 if test "x$OCAMLOPT" = x ; then
1859 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1860 dnl ocamlopt is optional!
1862 if test "x$with_ocaml_libdir" != xauto ; then
1863 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1865 ocaml_stdlib="`"$OCAMLC" -where`"
1866 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1868 # ocaml stdlib is beneath our prefix; use stdlib
1869 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1871 # ocaml stdlib is outside our prefix; use libdir/ocaml
1872 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1878 if test "$binding_prereqs_failed" = 1 ; then
1879 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1882 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1883 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1885 dnl Determine linker rpath flag
1886 if test "$llvm_cv_link_use_r" = "yes" ; then
1893 dnl Determine linker rdynamic flag
1894 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1895 RDYNAMIC="-rdynamic"
1901 dnl===-----------------------------------------------------------------------===
1903 dnl=== SECTION 10: Specify the output files and generate it
1905 dnl===-----------------------------------------------------------------------===
1907 dnl Configure header files
1908 dnl WARNING: dnl If you add or remove any of the following config headers, then
1909 dnl you MUST also update Makefile so that the variable FilesToConfig
1910 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1911 dnl files can be updated automatically when their *.in sources change.
1912 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1913 AH_TOP([#ifndef CONFIG_H
1917 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1918 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1919 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1920 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1921 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1923 dnl Configure the makefile's configuration data
1924 AC_CONFIG_FILES([Makefile.config])
1926 dnl Configure the RPM spec file for LLVM
1927 AC_CONFIG_FILES([llvm.spec])
1929 dnl Configure doxygen's configuration file
1930 AC_CONFIG_FILES([docs/doxygen.cfg])
1932 dnl Configure clang, if present
1933 if test "${clang_src_root}" = ""; then
1934 clang_src_root="$srcdir/tools/clang"
1936 if test -f ${clang_src_root}/README.txt; then
1937 dnl Use variables to stay under 80 columns.
1938 configh="include/clang/Config/config.h"
1939 doxy="docs/doxygen.cfg"
1940 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1941 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1944 dnl OCaml findlib META file
1945 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1947 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1948 test "x$program_prefix" = "xNONE" && program_prefix=""
1949 AC_SUBST([program_prefix])
1952 dnl Do special configuration of Makefiles
1953 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1954 AC_CONFIG_MAKEFILE(Makefile)
1955 AC_CONFIG_MAKEFILE(Makefile.common)
1956 AC_CONFIG_MAKEFILE(examples/Makefile)
1957 AC_CONFIG_MAKEFILE(lib/Makefile)
1958 AC_CONFIG_MAKEFILE(test/Makefile)
1959 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1960 AC_CONFIG_MAKEFILE(unittests/Makefile)
1961 AC_CONFIG_MAKEFILE(tools/Makefile)
1962 AC_CONFIG_MAKEFILE(utils/Makefile)
1963 AC_CONFIG_MAKEFILE(projects/Makefile)
1964 AC_CONFIG_MAKEFILE(bindings/Makefile)
1965 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1967 dnl Finally, crank out the output