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],[3.3svn],[http://llvm.org/bugs/])
35 AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
36 AC_DEFINE([LLVM_VERSION_MINOR], [3], [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 ${srcdir}])
62 dnl We need to check for the compiler up here to avoid anything else
63 dnl starting with a different one.
64 AC_PROG_CC(clang llvm-gcc gcc)
65 AC_PROG_CXX(clang++ llvm-g++ g++)
68 dnl If CXX is Clang, check that it can find and parse C++ standard library
70 if test "$CXX" = "clang++" ; then
71 AC_MSG_CHECKING([whether clang works])
73 dnl Note that space between 'include' and '(' is required. There's a broken
74 dnl regex in aclocal that otherwise will think that we call m4's include
76 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
77 #if __has_include (<cxxabi.h>)
80 #if __has_include (<unwind.h>)
89 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
94 dnl Configure all of the projects present in our source tree. While we could
95 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
96 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
97 dnl Instead we match on the known projects.
100 dnl One tricky part of doing this is that some projects depend upon other
101 dnl projects. For example, several projects rely upon the LLVM test suite.
102 dnl We want to configure those projects first so that their object trees are
103 dnl created before running the configure scripts of projects that depend upon
107 dnl Several projects use llvm-gcc, so configure that first
108 if test -d ${srcdir}/projects/llvm-gcc ; then
109 AC_CONFIG_SUBDIRS([projects/llvm-gcc])
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 llvm-stacker) AC_CONFIG_SUBDIRS([projects/llvm-stacker]) ;;
140 llvm-reopt) AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
141 llvm-java) AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
142 llvm-tv) AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
143 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
144 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
152 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
158 dnl Disable the build of polly, even if it is checked out into tools/polly.
160 AS_HELP_STRING([--enable-polly],
161 [Use polly if available (default is YES)]),,
164 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
165 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
166 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
167 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
171 dnl Check if polly is checked out into tools/polly and configure it if
173 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
174 AC_SUBST(LLVM_HAS_POLLY,1)
175 AC_CONFIG_SUBDIRS([tools/polly])
178 dnl===-----------------------------------------------------------------------===
180 dnl=== SECTION 2: Architecture, target, and host checks
182 dnl===-----------------------------------------------------------------------===
184 dnl Check the target for which we're compiling and the host that will do the
185 dnl compilations. This will tell us which LLVM compiler will be used for
186 dnl compiling SSA into object code. This needs to be done early because
187 dnl following tests depend on it.
190 dnl Determine the platform type and cache its value. This helps us configure
191 dnl the System library to the correct build platform.
192 AC_CACHE_CHECK([type of operating system we're going to host on],
196 llvm_cv_link_all_option="-Wl,--whole-archive"
197 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
198 llvm_cv_os_type="AIX"
199 llvm_cv_platform_type="Unix" ;;
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="IRIX"
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="Cygwin"
209 llvm_cv_platform_type="Unix" ;;
211 llvm_cv_link_all_option="-Wl,-all_load"
212 llvm_cv_no_link_all_option="-Wl,-noall_load"
213 llvm_cv_os_type="Darwin"
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="Minix"
219 llvm_cv_platform_type="Unix" ;;
220 *-*-freebsd* | *-*-kfreebsd-gnu)
221 llvm_cv_link_all_option="-Wl,--whole-archive"
222 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
223 llvm_cv_os_type="FreeBSD"
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="OpenBSD"
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="NetBSD"
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="DragonFly"
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="HP-UX"
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="Interix"
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="Linux"
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="GNU"
259 llvm_cv_platform_type="Unix" ;;
261 llvm_cv_link_all_option="-Wl,-z,allextract"
262 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
263 llvm_cv_os_type="SunOS"
264 llvm_cv_platform_type="Unix" ;;
266 llvm_cv_link_all_option="-Wl,-z,allextract"
267 llvm_cv_link_all_option="-Wl,-z,defaultextract"
268 llvm_cv_os_type="AuroraUX"
269 llvm_cv_platform_type="Unix" ;;
271 llvm_cv_link_all_option="-Wl,--whole-archive"
272 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
273 llvm_cv_os_type="Win32"
274 llvm_cv_platform_type="Win32" ;;
276 llvm_cv_link_all_option="-Wl,--whole-archive"
277 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
278 llvm_cv_os_type="MingW"
279 llvm_cv_platform_type="Win32" ;;
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="Haiku"
284 llvm_cv_platform_type="Unix" ;;
286 llvm_cv_link_all_option="-Wl,--whole-archive"
287 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
288 llvm_cv_os_type="Freestanding"
289 llvm_cv_platform_type="Unix" ;;
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="Freestanding"
294 llvm_cv_platform_type="Unix" ;;
296 llvm_cv_link_all_option=""
297 llvm_cv_no_link_all_option=""
298 llvm_cv_os_type="Unknown"
299 llvm_cv_platform_type="Unknown" ;;
302 AC_CACHE_CHECK([type of operating system we're going to target],
303 [llvm_cv_target_os_type],
306 llvm_cv_target_os_type="AIX" ;;
308 llvm_cv_target_os_type="IRIX" ;;
310 llvm_cv_target_os_type="Cygwin" ;;
312 llvm_cv_target_os_type="Darwin" ;;
314 llvm_cv_target_os_type="Minix" ;;
315 *-*-freebsd* | *-*-kfreebsd-gnu)
316 llvm_cv_target_os_type="FreeBSD" ;;
318 llvm_cv_target_os_type="OpenBSD" ;;
320 llvm_cv_target_os_type="NetBSD" ;;
322 llvm_cv_target_os_type="DragonFly" ;;
324 llvm_cv_target_os_type="HP-UX" ;;
326 llvm_cv_target_os_type="Interix" ;;
328 llvm_cv_target_os_type="Linux" ;;
330 llvm_cv_target_os_type="GNU" ;;
332 llvm_cv_target_os_type="SunOS" ;;
334 llvm_cv_target_os_type="AuroraUX" ;;
336 llvm_cv_target_os_type="Win32" ;;
338 llvm_cv_target_os_type="MingW" ;;
340 llvm_cv_target_os_type="Haiku" ;;
342 llvm_cv_target_os_type="RTEMS" ;;
344 llvm_cv_target_os_type="NativeClient" ;;
346 llvm_cv_target_os_type="Freestanding" ;;
348 llvm_cv_target_os_type="Unknown" ;;
351 dnl Make sure we aren't attempting to configure for an unknown system
352 if test "$llvm_cv_os_type" = "Unknown" ; then
353 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
356 dnl Set the "OS" Makefile variable based on the platform type so the
357 dnl makefile can configure itself to specific build hosts
358 AC_SUBST(OS,$llvm_cv_os_type)
359 AC_SUBST(HOST_OS,$llvm_cv_os_type)
360 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
362 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
363 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
364 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
366 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
367 dnl This is used by lib/Support to determine the basic kind of implementation
369 case $llvm_cv_platform_type in
371 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
372 AC_SUBST(LLVM_ON_UNIX,[1])
373 AC_SUBST(LLVM_ON_WIN32,[0])
376 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
377 AC_SUBST(LLVM_ON_UNIX,[0])
378 AC_SUBST(LLVM_ON_WIN32,[1])
382 dnl Determine what our target architecture is and configure accordingly.
383 dnl This will allow Makefiles to make a distinction between the hardware and
385 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
387 i?86-*) llvm_cv_target_arch="x86" ;;
388 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
389 sparc*-*) llvm_cv_target_arch="Sparc" ;;
390 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
391 arm*-*) llvm_cv_target_arch="ARM" ;;
392 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
393 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
394 xcore-*) llvm_cv_target_arch="XCore" ;;
395 msp430-*) llvm_cv_target_arch="MSP430" ;;
396 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
397 mblaze-*) llvm_cv_target_arch="MBlaze" ;;
398 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
399 *) llvm_cv_target_arch="Unknown" ;;
402 if test "$llvm_cv_target_arch" = "Unknown" ; then
403 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
406 dnl Determine the LLVM native architecture for the target
407 case "$llvm_cv_target_arch" in
408 x86) LLVM_NATIVE_ARCH="X86" ;;
409 x86_64) LLVM_NATIVE_ARCH="X86" ;;
410 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
413 dnl Define a substitution, ARCH, for the target architecture
414 AC_SUBST(ARCH,$llvm_cv_target_arch)
416 dnl Determine what our host architecture.
417 dnl This will allow MCJIT regress tests runs only for supported
420 i?86-*) host_arch="x86" ;;
421 amd64-* | x86_64-*) host_arch="x86_64" ;;
422 sparc*-*) host_arch="Sparc" ;;
423 powerpc*-*) host_arch="PowerPC" ;;
424 arm*-*) host_arch="ARM" ;;
425 mips-* | mips64-*) host_arch="Mips" ;;
426 mipsel-* | mips64el-*) host_arch="Mips" ;;
427 xcore-*) host_arch="XCore" ;;
428 msp430-*) host_arch="MSP430" ;;
429 hexagon-*) host_arch="Hexagon" ;;
430 mblaze-*) host_arch="MBlaze" ;;
431 *) host_arch="Unknown" ;;
434 if test "$host_arch" = "Unknown" ; then
435 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
438 AC_SUBST(HOST_ARCH,$host_arch)
440 dnl Check for the endianness of the target
441 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
443 dnl Check for build platform executable suffix if we're cross-compiling
444 if test "$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 "${srcdir}/.git"; then
468 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
474 dnl===-----------------------------------------------------------------------===
476 dnl=== SECTION 3: Command line arguments for the configure script.
478 dnl===-----------------------------------------------------------------------===
480 dnl --enable-libcpp : check whether or not to use libc++ on the command line
481 AC_ARG_ENABLE(libcpp,
482 AS_HELP_STRING([--enable-libcpp],
483 [Use libc++ if available (default is NO)]),,
486 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
487 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
488 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
489 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
492 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
494 AS_HELP_STRING([--enable-cxx11],
495 [Use c++11 if available (default is NO)]),,
498 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
499 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
500 default) AC_SUBST(ENABLE_CXX11,[0]);;
501 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
504 dnl --enable-clang-arcmt: check whether to enable clang arcmt
506 AC_ARG_ENABLE(clang-arcmt,
507 AS_HELP_STRING([--enable-clang-arcmt],
508 [Enable building of clang ARCMT (default is YES)]),
509 clang_arcmt="$enableval",
512 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
513 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
514 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
515 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
518 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
519 clang_static_analyzer="yes"
520 AC_ARG_ENABLE(clang-static-analyzer,
521 AS_HELP_STRING([--enable-clang-static-analyzer],
522 [Enable building of clang Static Analyzer (default is YES)]),
523 clang_static_analyzer="$enableval",
526 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
527 no) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0]) ;;
528 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
529 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
532 dnl --enable-clang-rewriter: check whether to enable clang rewriter
533 AC_ARG_ENABLE(clang-rewriter,
534 AS_HELP_STRING([--enable-clang-rewriter],
535 [Enable building of clang rewriter (default is YES)]),,
538 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
540 if test ${clang_arcmt} != "no" ; then
541 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
543 if test ${clang_static_analyzer} != "no" ; then
544 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
546 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
548 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
549 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
552 dnl --enable-optimized : check whether they want to do an optimized build:
553 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
554 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
555 if test ${enableval} = "no" ; then
556 AC_SUBST(ENABLE_OPTIMIZED,[[]])
558 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
561 dnl --enable-profiling : check whether they want to do a profile build:
562 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
563 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
564 if test ${enableval} = "no" ; then
565 AC_SUBST(ENABLE_PROFILING,[[]])
567 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
570 dnl --enable-assertions : check whether they want to turn on assertions or not:
571 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
572 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
573 if test ${enableval} = "yes" ; then
574 AC_SUBST(DISABLE_ASSERTIONS,[[]])
576 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
579 dnl --enable-werror : check whether we want Werror on by default
580 AC_ARG_ENABLE(werror,AS_HELP_STRING(
581 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
583 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
584 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
585 default) AC_SUBST(ENABLE_WERROR,[0]);;
586 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
589 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
590 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
591 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
592 if test ${enableval} = "yes" ; then
593 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
594 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
596 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
597 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
600 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
601 AC_ARG_ENABLE(debug-runtime,
602 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
603 if test ${enableval} = "no" ; then
604 AC_SUBST(DEBUG_RUNTIME,[[]])
606 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
609 dnl --enable-debug-symbols : should even optimized compiler libraries
610 dnl have debug symbols?
611 AC_ARG_ENABLE(debug-symbols,
612 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)
613 if test ${enableval} = "no" ; then
614 AC_SUBST(DEBUG_SYMBOLS,[[]])
616 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
619 dnl --enable-keep-symbols : do not strip installed executables
620 AC_ARG_ENABLE(keep-symbols,
621 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
622 if test ${enableval} = "no" ; then
623 AC_SUBST(KEEP_SYMBOLS,[[]])
625 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
628 dnl --enable-jit: check whether they want to enable the jit
630 AS_HELP_STRING(--enable-jit,
631 [Enable Just In Time Compiling (default is YES)]),,
633 if test ${enableval} = "no"
637 case "$llvm_cv_target_arch" in
638 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
639 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
640 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
641 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
642 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
643 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
644 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
645 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
646 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
647 MBlaze) AC_SUBST(TARGET_HAS_JIT,0) ;;
648 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
649 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
653 dnl Allow enablement of building and installing docs
655 AS_HELP_STRING([--enable-docs],
656 [Build documents (default is YES)]),,
659 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
660 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
661 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
662 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
665 dnl Allow enablement of doxygen generated documentation
666 AC_ARG_ENABLE(doxygen,
667 AS_HELP_STRING([--enable-doxygen],
668 [Build doxygen documentation (default is NO)]),,
671 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
672 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
673 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
674 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
677 dnl Allow disablement of threads
678 AC_ARG_ENABLE(threads,
679 AS_HELP_STRING([--enable-threads],
680 [Use threads if available (default is YES)]),,
683 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
684 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
685 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
686 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
688 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
689 [Define if threads enabled])
691 dnl Allow disablement of pthread.h
692 AC_ARG_ENABLE(pthreads,
693 AS_HELP_STRING([--enable-pthreads],
694 [Use pthreads if available (default is YES)]),,
697 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
698 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
699 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
700 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
703 dnl Allow building without position independent code
705 AS_HELP_STRING([--enable-pic],
706 [Build LLVM with Position Independent Code (default is YES)]),,
709 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
710 no) AC_SUBST(ENABLE_PIC,[0]) ;;
711 default) AC_SUBST(ENABLE_PIC,[1]) ;;
712 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
714 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
715 [Define if position independent code is enabled])
717 dnl Allow building a shared library and linking tools against it.
718 AC_ARG_ENABLE(shared,
719 AS_HELP_STRING([--enable-shared],
720 [Build a shared library and link tools against it (default is NO)]),,
723 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
724 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
725 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
726 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
729 dnl Allow libstdc++ is embedded in LLVM.dll.
730 AC_ARG_ENABLE(embed-stdcxx,
731 AS_HELP_STRING([--enable-embed-stdcxx],
732 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
735 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
736 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
737 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
738 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
741 dnl Enable embedding timestamp information into build.
742 AC_ARG_ENABLE(timestamps,
743 AS_HELP_STRING([--enable-timestamps],
744 [Enable embedding timestamp information in build (default is YES)]),,
747 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
748 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
749 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
750 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
752 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
753 [Define if timestamp information (e.g., __DATE__) is allowed])
755 dnl Enable embedding timestamp information into build.
757 AC_ARG_ENABLE(backtraces,
758 AS_HELP_STRING([--enable-backtraces],
759 [Enable embedding backtraces on crash (default is YES)]),,
762 yes) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
763 no) AC_SUBST(ENABLE_BACKTRACES,[0]) ;;
764 default) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
765 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
767 AC_DEFINE_UNQUOTED([ENABLE_BACKTRACES],$ENABLE_BACKTRACES,
768 [Define if you want backtraces on crash])
770 dnl Allow specific targets to be specified for building (or not)
772 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
773 [Build specific host targets: all or target1,target2,... Valid targets are:
774 host, x86, x86_64, sparc, powerpc, arm, mips, hexagon,
775 xcore, msp430, nvptx, and cpp (default=all)]),,
777 if test "$enableval" = host-only ; then
781 all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips XCore MSP430 CppBackend MBlaze NVPTX Hexagon" ;;
782 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
784 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
785 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
786 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
787 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
788 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
789 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
790 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
791 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
792 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
793 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
794 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
795 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
796 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
797 mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
798 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
799 host) case "$llvm_cv_target_arch" in
800 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
801 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
802 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
803 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
804 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
805 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
806 MBlaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
807 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
808 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
809 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
810 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
811 *) AC_MSG_ERROR([Can not set target to build]) ;;
813 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
819 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
820 [Build experimental host targets: disable or target1,target2,...
821 (default=disable)]),,
824 if test ${enableval} != "disable"
826 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
829 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
831 dnl Determine whether we are building LLVM support for the native architecture.
832 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
833 for a_target in $TARGETS_TO_BUILD; do
834 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
835 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
836 [LLVM architecture name for the native architecture, if available])
837 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
838 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
839 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
840 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
841 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
842 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
844 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
845 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
847 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
848 [LLVM name for the native Target init function, if available])
849 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
850 [LLVM name for the native TargetInfo init function, if available])
851 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
852 [LLVM name for the native target MC init function, if available])
853 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
854 [LLVM name for the native AsmPrinter init function, if available])
855 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
856 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
857 [LLVM name for the native AsmParser init function, if available])
859 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
860 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
861 [LLVM name for the native Disassembler init function, if available])
866 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
867 dnl target feature def files.
869 LLVM_ENUM_ASM_PRINTERS=""
870 LLVM_ENUM_ASM_PARSERS=""
871 LLVM_ENUM_DISASSEMBLERS=""
872 for target_to_build in $TARGETS_TO_BUILD; do
873 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
874 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
875 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
877 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
878 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
880 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
881 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
884 AC_SUBST(LLVM_ENUM_TARGETS)
885 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
886 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
887 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
889 dnl Override the option to use for optimized builds.
890 AC_ARG_WITH(optimize-option,
891 AS_HELP_STRING([--with-optimize-option],
892 [Select the compiler options to use for optimized builds]),,
894 AC_MSG_CHECKING([optimization flags])
897 case "$llvm_cv_os_type" in
898 FreeBSD) optimize_option=-O2 ;;
899 MingW) optimize_option=-O2 ;;
900 *) optimize_option=-O3 ;;
902 *) optimize_option="$withval" ;;
904 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
905 AC_MSG_RESULT([$optimize_option])
907 dnl Specify extra build options
908 AC_ARG_WITH(extra-options,
909 AS_HELP_STRING([--with-extra-options],
910 [Specify additional options to compile LLVM with]),,
913 default) EXTRA_OPTIONS= ;;
914 *) EXTRA_OPTIONS=$withval ;;
916 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
918 dnl Specify extra linker build options
919 AC_ARG_WITH(extra-ld-options,
920 AS_HELP_STRING([--with-extra-ld-options],
921 [Specify additional options to link LLVM with]),,
924 default) EXTRA_LD_OPTIONS= ;;
925 *) EXTRA_LD_OPTIONS=$withval ;;
927 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
929 dnl Allow specific bindings to be specified for building (or not)
930 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
931 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
935 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
936 all ) BINDINGS_TO_BUILD="ocaml" ;;
937 none | no) BINDINGS_TO_BUILD="" ;;
938 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
940 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
941 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
947 dnl Allow the ocaml libdir to be overridden. This could go in a configure
948 dnl script for bindings/ocaml/configure, except that its auto value depends on
949 dnl OCAMLC, which is found here to support tests.
950 AC_ARG_WITH([ocaml-libdir],
951 [AS_HELP_STRING([--with-ocaml-libdir],
952 [Specify install location for ocaml bindings (default is stdlib)])],
956 auto) with_ocaml_libdir="$withval" ;;
957 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
958 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
961 AC_ARG_WITH(clang-srcdir,
962 AS_HELP_STRING([--with-clang-srcdir],
963 [Directory to the out-of-tree Clang source]),,
966 -) clang_src_root="" ;;
967 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
968 *) clang_src_root="$ac_pwd/$withval" ;;
970 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
972 AC_ARG_WITH(clang-resource-dir,
973 AS_HELP_STRING([--with-clang-resource-dir],
974 [Relative directory from the Clang binary for resource files]),,
976 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
977 [Relative directory for resource files])
979 AC_ARG_WITH(c-include-dirs,
980 AS_HELP_STRING([--with-c-include-dirs],
981 [Colon separated list of directories clang will search for headers]),,
983 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
984 [Directories clang will search for headers])
986 # Clang normally uses the system c++ headers and libraries. With this option,
987 # clang will use the ones provided by a gcc installation instead. This option should
988 # be passed the same value that was used with --prefix when configuring gcc.
989 AC_ARG_WITH(gcc-toolchain,
990 AS_HELP_STRING([--with-gcc-toolchain],
991 [Directory where gcc is installed.]),,
993 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
994 [Directory where gcc is installed.])
996 AC_ARG_WITH(default-sysroot,
997 AS_HELP_STRING([--with-default-sysroot],
998 [Add --sysroot=<path> to all compiler invocations.]),,
1000 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1001 [Default <path> to all compiler invocations for --sysroot=<path>.])
1003 dnl Allow linking of LLVM with GPLv3 binutils code.
1004 AC_ARG_WITH(binutils-include,
1005 AS_HELP_STRING([--with-binutils-include],
1006 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1009 default) WITH_BINUTILS_INCDIR=default ;;
1010 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1011 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1013 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1014 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1015 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1016 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1017 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1021 dnl Specify the URL where bug reports should be submitted.
1022 AC_ARG_WITH(bug-report-url,
1023 AS_HELP_STRING([--with-bug-report-url],
1024 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1025 withval="http://llvm.org/bugs/")
1026 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1029 dnl --enable-libffi : check whether the user wants to turn off libffi:
1030 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1031 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1032 [case "$enableval" in
1033 yes) llvm_cv_enable_libffi="yes" ;;
1034 no) llvm_cv_enable_libffi="no" ;;
1035 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1037 llvm_cv_enable_libffi=no)
1039 AC_ARG_WITH(internal-prefix,
1040 AS_HELP_STRING([--with-internal-prefix],
1041 [Installation directory for internal files]),,
1043 AC_SUBST(INTERNAL_PREFIX,[$withval])
1045 dnl===-----------------------------------------------------------------------===
1047 dnl=== SECTION 4: Check for programs we need and that they are the right version
1049 dnl===-----------------------------------------------------------------------===
1054 dnl Check for the tools that the makefiles require
1057 AC_PATH_PROG(CMP, [cmp], [cmp])
1058 AC_PATH_PROG(CP, [cp], [cp])
1059 AC_PATH_PROG(DATE, [date], [date])
1060 AC_PATH_PROG(FIND, [find], [find])
1061 AC_PATH_PROG(GREP, [grep], [grep])
1062 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1063 AC_PATH_PROG(MV, [mv], [mv])
1065 AC_CHECK_TOOL(AR, ar, false)
1066 AC_PATH_PROG(RM, [rm], [rm])
1067 AC_PATH_PROG(SED, [sed], [sed])
1068 AC_PATH_PROG(TAR, [tar], [gtar])
1069 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1071 dnl Looking for misc. graph plotting software
1072 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1073 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1074 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1075 dnl If we're targeting for mingw we should emit windows paths, not msys
1076 if test "$llvm_cv_os_type" = "MingW" ; then
1077 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1079 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1080 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1082 AC_PATH_PROG(DOT, [dot], [echo dot])
1083 if test "$DOT" != "echo dot" ; then
1084 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1085 dnl If we're targeting for mingw we should emit windows paths, not msys
1086 if test "$llvm_cv_os_type" = "MingW" ; then
1087 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1089 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1090 [Define to path to dot program if found or 'echo dot' otherwise])
1092 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1093 if test "$FDP" != "echo fdp" ; then
1094 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1095 dnl If we're targeting for mingw we should emit windows paths, not msys
1096 if test "$llvm_cv_os_type" = "MingW" ; then
1097 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1099 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1100 [Define to path to fdp program if found or 'echo fdp' otherwise])
1102 AC_PATH_PROG(NEATO, [neato], [echo neato])
1103 if test "$NEATO" != "echo neato" ; then
1104 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1105 dnl If we're targeting for mingw we should emit windows paths, not msys
1106 if test "$llvm_cv_os_type" = "MingW" ; then
1107 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1109 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1110 [Define to path to neato program if found or 'echo neato' otherwise])
1112 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1113 if test "$TWOPI" != "echo twopi" ; then
1114 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1115 dnl If we're targeting for mingw we should emit windows paths, not msys
1116 if test "$llvm_cv_os_type" = "MingW" ; then
1117 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1119 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1120 [Define to path to twopi program if found or 'echo twopi' otherwise])
1122 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1123 if test "$CIRCO" != "echo circo" ; then
1124 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1125 dnl If we're targeting for mingw we should emit windows paths, not msys
1126 if test "$llvm_cv_os_type" = "MingW" ; then
1127 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1129 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1130 [Define to path to circo program if found or 'echo circo' otherwise])
1132 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1133 if test "$GV" != "echo gv" ; then
1134 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1135 dnl If we're targeting for mingw we should emit windows paths, not msys
1136 if test "$llvm_cv_os_type" = "MingW" ; then
1137 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1139 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1140 [Define to path to gv program if found or 'echo gv' otherwise])
1142 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1143 if test "$DOTTY" != "echo dotty" ; then
1144 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1145 dnl If we're targeting for mingw we should emit windows paths, not msys
1146 if test "$llvm_cv_os_type" = "MingW" ; then
1147 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1149 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1150 [Define to path to dotty program if found or 'echo dotty' otherwise])
1152 AC_PATH_PROG(XDOT_PY, [xdot.py], [echo xdot.py])
1153 if test "$XDOT_PY" != "echo xdot.py" ; then
1154 AC_DEFINE([HAVE_XDOT_PY],[1],[Define if the xdot.py program is available])
1155 dnl If we're targeting for mingw we should emit windows paths, not msys
1156 if test "$llvm_cv_os_type" = "MingW" ; then
1157 XDOT_PY=`echo $XDOT_PY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1159 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT_PY],"$XDOT_PY${EXEEXT}",
1160 [Define to path to xdot.py program if found or 'echo xdot.py' otherwise])
1163 dnl Find the install program
1165 dnl Prepend src dir to install path dir if it's a relative path
1166 dnl This is a hack for installs that take place in something other
1167 dnl than the top level.
1169 [[\\/$]]* | ?:[[\\/]]* ) ;;
1170 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1173 dnl Checks for documentation and testing tools that we can do without. If these
1174 dnl are not found then they are set to "true" which always succeeds but does
1175 dnl nothing. This just lets the build output show that we could have done
1176 dnl something if the tool was available.
1177 AC_PATH_PROG(BZIP2, [bzip2])
1178 AC_PATH_PROG(CAT, [cat])
1179 AC_PATH_PROG(DOXYGEN, [doxygen])
1180 AC_PATH_PROG(GROFF, [groff])
1181 AC_PATH_PROG(GZIPBIN, [gzip])
1182 AC_PATH_PROG(PDFROFF, [pdfroff])
1183 AC_PATH_PROG(ZIP, [zip])
1184 AC_PATH_PROGS(OCAMLC, [ocamlc])
1185 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1186 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1187 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1188 AC_PATH_PROGS(GAS, [gas as])
1190 dnl Get the version of the linker in use.
1193 dnl Determine whether the linker supports the -R option.
1196 dnl Determine whether the linker supports the -export-dynamic option.
1197 AC_LINK_EXPORT_DYNAMIC
1199 dnl Determine whether the linker supports the --version-script option.
1200 AC_LINK_VERSION_SCRIPT
1202 dnl Check for libtool and the library that has dlopen function (which must come
1203 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1208 AC_MSG_CHECKING([tool compatibility])
1210 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1211 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1212 dnl to support those options.
1213 dnl "icc" emits gcc signatures
1214 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1226 if test "$GCC" != "yes" && test "$ICC" != "yes"
1228 AC_MSG_ERROR([gcc|icc required but not found])
1231 dnl Ensure that compilation tools are compatible with GCC extensions
1232 if test "$GXX" != "yes" && test "$IXX" != "yes"
1234 AC_MSG_ERROR([g++|clang++|icc required but not found])
1237 dnl Verify that GCC is version 3.0 or higher
1238 if test "$GCC" = "yes"
1240 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
1241 #error Unsupported GCC version
1243 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1246 dnl Check for GNU Make. We use its extensions, so don't build without it
1247 if test -z "$llvm_cv_gnu_make_command"
1249 AC_MSG_ERROR([GNU Make required but not found])
1252 dnl Tool compatibility is okay if we make it here.
1255 dnl Check optional compiler flags.
1256 AC_MSG_CHECKING([optional compiler flags])
1257 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1258 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1259 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1260 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1261 dnl false positives, so disable it.
1262 if test "$GXX" = "yes"
1264 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1265 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1266 dnl known to be uninitialized from cases which might be uninitialized. We
1267 dnl still want to catch the first kind of errors.
1268 if test "$NO_MAYBE_UNINITIALIZED" != "-Wno-maybe-uninitialized"
1270 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1272 dnl Some versions of gcc accept unsupported -W flags if there is
1273 dnl no warning but stop with an error when a warning is
1274 dnl encountered. If this gcc is earlier than 4.7, just use
1275 dnl -Wno-uninitialized.
1276 gxx_version=`$CXX -dumpversion`
1277 gxx_version_major=`echo $gxx_version | cut -d'.' -f1`
1278 gxx_version_minor=`echo $gxx_version | cut -d'.' -f2`
1279 gxx_version_patch=`echo $gxx_version | cut -d'.' -f3`
1281 if test "$gxx_version_major" -ge "4" \
1282 && test "$gxx_version_minor" -ge "7"; then
1283 dnl AC_SUBST doesn't work with empty strings.
1286 NO_MAYBE_UNINITIALIZED=
1287 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1292 NO_MAYBE_UNINITIALIZED=
1294 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1297 dnl===-----------------------------------------------------------------------===
1299 dnl=== SECTION 5: Check for libraries
1301 dnl===-----------------------------------------------------------------------===
1304 if test "$llvm_cv_os_type" = "MingW" ; then
1305 AC_CHECK_LIB(imagehlp, main)
1306 AC_CHECK_LIB(psapi, main)
1309 dnl dlopen() is required for plugin support.
1310 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1311 [Define if dlopen() is available on this platform.]),
1312 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1314 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1315 dnl macros to detect whether clock_gettime is available, this just finds the
1316 dnl right libraries to link with.
1317 AC_SEARCH_LIBS(clock_gettime,rt)
1319 dnl libffi is optional; used to call external functions from the interpreter
1320 if test "$llvm_cv_enable_libffi" = "yes" ; then
1321 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1322 [Define if libffi is available on this platform.]),
1323 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1326 dnl mallinfo is optional; the code can compile (minus features) without it
1327 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1328 [Define if mallinfo() is available on this platform.]))
1330 dnl pthread locking functions are optional - but llvm will not be thread-safe
1332 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1333 AC_CHECK_LIB(pthread, pthread_mutex_init)
1334 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1335 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1336 [Have pthread_mutex_lock]))
1337 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1338 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1339 [Have pthread_rwlock_init]))
1340 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1341 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1342 [Have pthread_getspecific]))
1345 dnl Allow extra x86-disassembler library
1347 AS_HELP_STRING([--with-udis86=<path>],
1348 [Use udis86 external x86 disassembler library]),
1350 AC_SUBST(USE_UDIS86, [1])
1353 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1355 AC_CHECK_LIB(udis86, ud_init, [], [
1356 echo "Error! You need to have libudis86 around."
1360 AC_SUBST(USE_UDIS86, [0]))
1361 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1362 [Define if use udis86 library])
1364 dnl Allow OProfile support for JIT output.
1365 AC_ARG_WITH(oprofile,
1366 AS_HELP_STRING([--with-oprofile=<prefix>],
1367 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1369 AC_SUBST(USE_OPROFILE, [1])
1371 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1373 AC_SUBST(USE_OPROFILE, [0]) ;;
1374 *) llvm_cv_oppath="${withval}/lib/oprofile"
1375 CPPFLAGS="-I${withval}/include";;
1377 case $llvm_cv_os_type in
1379 if test -n "$llvm_cv_oppath" ; then
1380 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1381 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1382 dnl libbfd is not included properly in libopagent in some Debian
1383 dnl versions. If libbfd isn't found at all, we assume opagent works
1385 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1386 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1387 echo "Error! You need to have libopagent around."
1390 AC_CHECK_HEADER([opagent.h], [], [
1391 echo "Error! You need to have opagent.h around."
1396 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1400 AC_SUBST(USE_OPROFILE, [0])
1402 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1403 [Define if we have the oprofile JIT-support library])
1405 dnl Enable support for Intel JIT Events API.
1406 AC_ARG_WITH(intel-jitevents,
1407 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1410 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1411 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1412 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1415 case $llvm_cv_os_type in
1416 Linux|Win32|Cygwin|MingW) ;;
1417 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1420 case "$llvm_cv_target_arch" in
1422 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1426 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1428 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1429 [Define if we have the Intel JIT API runtime support library])
1431 dnl Check for libxml2
1432 dnl Right now we're just checking for the existence, we could also check for a
1433 dnl particular version via --version on xml2-config
1434 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1436 AC_MSG_CHECKING(for libxml2 includes)
1437 if test "x$XML2CONFIG" = "x"; then
1438 AC_MSG_RESULT(xml2-config not found)
1440 LIBXML2_INC=`$XML2CONFIG --cflags`
1441 AC_MSG_RESULT($LIBXML2_INC)
1442 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1443 LIBXML2_LIBS="-lxml2"])
1445 AC_SUBST(LIBXML2_LIBS)
1446 AC_SUBST(LIBXML2_INC)
1448 dnl===-----------------------------------------------------------------------===
1450 dnl=== SECTION 6: Check for header files
1452 dnl===-----------------------------------------------------------------------===
1454 dnl First, use autoconf provided macros for specific headers that we need
1455 dnl We don't check for ancient stuff or things that are guaranteed to be there
1456 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1457 dnl Generally we're looking for POSIX headers.
1459 AC_HEADER_MMAP_ANONYMOUS
1464 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
1465 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1466 AC_CHECK_HEADERS([utime.h windows.h])
1467 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1468 AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
1469 AC_CHECK_HEADERS([valgrind/valgrind.h])
1470 AC_CHECK_HEADERS([fenv.h])
1471 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1472 AC_CHECK_HEADERS(pthread.h,
1473 AC_SUBST(HAVE_PTHREAD, 1),
1474 AC_SUBST(HAVE_PTHREAD, 0))
1476 AC_SUBST(HAVE_PTHREAD, 0)
1479 dnl Try to find ffi.h.
1480 if test "$llvm_cv_enable_libffi" = "yes" ; then
1481 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1484 dnl Try to find Darwin specific crash reporting libraries.
1485 AC_CHECK_HEADERS([CrashReporterClient.h])
1487 dnl Try to find Darwin specific crash reporting global.
1488 AC_MSG_CHECKING([__crashreporter_info__])
1491 [[extern const char *__crashreporter_info__;
1493 __crashreporter_info__ = "test";
1498 AC_DEFINE(HAVE_CRASHREPORTER_INFO, 1, Can use __crashreporter_info__),
1500 AC_DEFINE(HAVE_CRASHREPORTER_INFO, 0,
1501 Define if __crashreporter_info__ exists.))
1503 dnl===-----------------------------------------------------------------------===
1505 dnl=== SECTION 7: Check for types and structures
1507 dnl===-----------------------------------------------------------------------===
1512 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1514 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1515 AC_CHECK_TYPES([uint64_t],,
1516 AC_CHECK_TYPES([u_int64_t],,
1517 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1519 dnl===-----------------------------------------------------------------------===
1521 dnl=== SECTION 8: Check for specific functions needed
1523 dnl===-----------------------------------------------------------------------===
1525 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1526 AC_CHECK_FUNCS([powf fmodf strtof round ])
1527 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1528 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1529 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit strdup ])
1530 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1531 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1532 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1536 dnl Check the declaration "Secure API" on Windows environments.
1537 AC_CHECK_DECLS([strerror_s])
1539 dnl Check symbols in libgcc.a for JIT on Mingw.
1540 if test "$llvm_cv_os_type" = "MingW" ; then
1541 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1542 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1543 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1544 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1546 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1547 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1548 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1549 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1550 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1551 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1552 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1553 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1554 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1555 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1557 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1558 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1561 dnl Check Win32 API EnumerateLoadedModules.
1562 if test "$llvm_cv_os_type" = "MingW" ; then
1563 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1564 AC_COMPILE_IFELSE([[#include <windows.h>
1565 #include <imagehlp.h>
1566 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1567 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));]],
1569 AC_MSG_RESULT([yes])
1570 llvm_cv_win32_elmcb_pcstr="PCSTR"
1574 llvm_cv_win32_elmcb_pcstr="PSTR"
1576 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1579 dnl Check for variations in the Standard C++ library and STL. These macros are
1580 dnl provided by LLVM in the autoconf/m4 directory.
1584 dnl Check for mmap support.We also need to know if /dev/zero is required to
1585 dnl be opened for allocating RWX memory.
1586 dnl Make sure we aren't attempting to configure for an unknown system
1587 if test "$llvm_cv_platform_type" = "Unix" ; then
1590 AC_NEED_DEV_ZERO_FOR_MMAP
1592 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1594 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1596 if test "$ac_cv_func_mmap_file" = "no"
1598 AC_MSG_WARN([mmap() of files required but not found])
1602 dnl atomic builtins are required for threading support.
1603 AC_MSG_CHECKING(for GCC atomic builtins)
1604 dnl Since we'll be using these atomic builtins in C++ files we should test
1605 dnl the C++ compiler.
1610 volatile unsigned long val = 1;
1611 __sync_synchronize();
1612 __sync_val_compare_and_swap(&val, 1, 0);
1613 __sync_add_and_fetch(&val, 1);
1614 __sync_sub_and_fetch(&val, 1);
1620 AC_DEFINE(LLVM_HAS_ATOMICS, 1, Has gcc/MSVC atomic intrinsics),
1622 AC_DEFINE(LLVM_HAS_ATOMICS, 0, Has gcc/MSVC atomic intrinsics)
1623 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]))
1625 dnl===-----------------------------------------------------------------------===
1627 dnl=== SECTION 9: Additional checks, variables, etc.
1629 dnl===-----------------------------------------------------------------------===
1631 dnl Handle 32-bit linux systems running a 64-bit kernel.
1632 dnl This has to come after section 4 because it invokes the compiler.
1633 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1635 if test "$llvm_cv_linux_mixed" = "yes"; then
1636 llvm_cv_target_arch="x86"
1641 dnl Check whether __dso_handle is present
1642 AC_CHECK_FUNCS([__dso_handle])
1644 dnl Propagate the shared library extension that the libltdl checks did to
1645 dnl the Makefiles so we can use it there too
1646 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1648 dnl Propagate the run-time library path variable that the libltdl
1649 dnl checks found to the Makefiles so we can use it there too
1650 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1652 dnl Translate the various configuration directories and other basic
1653 dnl information into substitutions that will end up in Makefile.config.in
1654 dnl that these configured values can be used by the makefiles
1655 if test "${prefix}" = "NONE" ; then
1658 eval LLVM_PREFIX="${prefix}";
1659 eval LLVM_BINDIR="${prefix}/bin";
1660 eval LLVM_LIBDIR="${prefix}/lib";
1661 eval LLVM_DATADIR="${prefix}/share/llvm";
1662 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1663 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1664 eval LLVM_INCLUDEDIR="${prefix}/include";
1665 eval LLVM_INFODIR="${prefix}/info";
1666 eval LLVM_MANDIR="${prefix}/man";
1667 LLVM_CONFIGTIME=`date`
1668 AC_SUBST(LLVM_PREFIX)
1669 AC_SUBST(LLVM_BINDIR)
1670 AC_SUBST(LLVM_LIBDIR)
1671 AC_SUBST(LLVM_DATADIR)
1672 AC_SUBST(LLVM_DOCSDIR)
1673 AC_SUBST(LLVM_ETCDIR)
1674 AC_SUBST(LLVM_INCLUDEDIR)
1675 AC_SUBST(LLVM_INFODIR)
1676 AC_SUBST(LLVM_MANDIR)
1677 AC_SUBST(LLVM_CONFIGTIME)
1679 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1680 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1681 LLVM_CONFIGTIME="(timestamp not enabled)"
1684 dnl Place the various directories into the config.h file as #defines so that we
1685 dnl can know about the installation paths within LLVM.
1686 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1687 [Installation prefix directory])
1688 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1689 [Installation directory for binary executables])
1690 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
1691 [Installation directory for libraries])
1692 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1693 [Installation directory for data files])
1694 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1695 [Installation directory for documentation])
1696 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1697 [Installation directory for config files])
1698 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1699 [Installation directory for include files])
1700 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1701 [Installation directory for .info files])
1702 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1703 [Installation directory for man pages])
1704 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1705 [Time at which LLVM was configured])
1706 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
1707 [Host triple LLVM will be executed on])
1708 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1709 [Target triple LLVM will generate code for by default])
1711 dnl Determine which bindings to build.
1712 if test "$BINDINGS_TO_BUILD" = auto ; then
1713 BINDINGS_TO_BUILD=""
1714 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1715 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1718 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1720 dnl This isn't really configurey, but it avoids having to repeat the list in
1722 AC_SUBST(ALL_BINDINGS,ocaml)
1724 dnl Do any work necessary to ensure that bindings have what they need.
1725 binding_prereqs_failed=0
1726 for a_binding in $BINDINGS_TO_BUILD ; do
1727 case "$a_binding" in
1729 if test "x$OCAMLC" = x ; then
1730 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1731 binding_prereqs_failed=1
1733 if test "x$OCAMLDEP" = x ; then
1734 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1735 binding_prereqs_failed=1
1737 if test "x$OCAMLOPT" = x ; then
1738 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1739 dnl ocamlopt is optional!
1741 if test "x$with_ocaml_libdir" != xauto ; then
1742 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1744 ocaml_stdlib="`"$OCAMLC" -where`"
1745 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1747 # ocaml stdlib is beneath our prefix; use stdlib
1748 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1750 # ocaml stdlib is outside our prefix; use libdir/ocaml
1751 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
1757 if test "$binding_prereqs_failed" = 1 ; then
1758 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1761 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1762 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1764 dnl Determine linker rpath flag
1765 if test "$llvm_cv_link_use_r" = "yes" ; then
1772 dnl Determine linker rdynamic flag
1773 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1774 RDYNAMIC="-Wl,-export-dynamic"
1780 dnl===-----------------------------------------------------------------------===
1782 dnl=== SECTION 10: Specify the output files and generate it
1784 dnl===-----------------------------------------------------------------------===
1786 dnl Configure header files
1787 dnl WARNING: dnl If you add or remove any of the following config headers, then
1788 dnl you MUST also update Makefile so that the variable FilesToConfig
1789 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1790 dnl files can be updated automatically when their *.in sources change.
1791 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1792 AH_TOP([#ifndef CONFIG_H
1796 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1797 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1798 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1799 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1800 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1802 dnl Configure the makefile's configuration data
1803 AC_CONFIG_FILES([Makefile.config])
1805 dnl Configure the RPM spec file for LLVM
1806 AC_CONFIG_FILES([llvm.spec])
1808 dnl Configure doxygen's configuration file
1809 AC_CONFIG_FILES([docs/doxygen.cfg])
1811 dnl Configure clang, if present
1812 if test "${clang_src_root}" = ""; then
1813 clang_src_root="$srcdir/tools/clang"
1815 if test -f ${clang_src_root}/README.txt; then
1816 dnl Use variables to stay under 80 columns.
1817 configh="include/clang/Config/config.h"
1818 doxy="docs/doxygen.cfg"
1819 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1820 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1823 dnl OCaml findlib META file
1824 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1826 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1827 test "x$program_prefix" = "xNONE" && program_prefix=""
1828 AC_SUBST([program_prefix])
1831 dnl Do special configuration of Makefiles
1832 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1833 AC_CONFIG_MAKEFILE(Makefile)
1834 AC_CONFIG_MAKEFILE(Makefile.common)
1835 AC_CONFIG_MAKEFILE(examples/Makefile)
1836 AC_CONFIG_MAKEFILE(lib/Makefile)
1837 AC_CONFIG_MAKEFILE(runtime/Makefile)
1838 AC_CONFIG_MAKEFILE(test/Makefile)
1839 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1840 AC_CONFIG_MAKEFILE(unittests/Makefile)
1841 AC_CONFIG_MAKEFILE(tools/Makefile)
1842 AC_CONFIG_MAKEFILE(utils/Makefile)
1843 AC_CONFIG_MAKEFILE(projects/Makefile)
1844 AC_CONFIG_MAKEFILE(bindings/Makefile)
1845 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1847 dnl Finally, crank out the output