1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl License. See LICENSE.TXT for details.
7 dnl===-----------------------------------------------------------------------===
8 dnl This is the LLVM configuration script. It is processed by the autoconf
9 dnl program to produce a script named configure. This script contains the
10 dnl configuration checks that LLVM needs in order to support multiple platforms.
11 dnl This file is composed of 10 sections per the recommended organization of
12 dnl autoconf input defined in the autoconf documentation. As this file evolves,
13 dnl please keep the various types of checks within their sections. The sections
16 dnl SECTION 1: Initialization & Setup
17 dnl SECTION 2: Architecture, target, and host checks
18 dnl SECTION 3: Command line arguments for the configure script.
19 dnl SECTION 4: Check for programs we need and that they are the right version
20 dnl SECTION 5: Check for libraries
21 dnl SECTION 6: Check for header files
22 dnl SECTION 7: Check for types and structures
23 dnl SECTION 8: Check for specific functions needed
24 dnl SECTION 9: Additional checks, variables, etc.
25 dnl SECTION 10: Specify the output files and generate it
27 dnl===-----------------------------------------------------------------------===
29 dnl=== SECTION 1: Initialization & Setup
31 dnl===-----------------------------------------------------------------------===
32 dnl Initialize autoconf and define the package name, version number and
33 dnl address for reporting bugs.
35 AC_INIT([LLVM],[3.5.0svn],[http://llvm.org/bugs/])
40 LLVM_VERSION_SUFFIX=svn
42 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
43 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])
44 AC_DEFINE_UNQUOTED([LLVM_VERSION_PATCH], $LLVM_VERSION_PATCH, [Patch version of the LLVM API])
46 AC_SUBST([LLVM_VERSION_MAJOR])
47 AC_SUBST([LLVM_VERSION_MINOR])
48 AC_SUBST([LLVM_VERSION_PATCH])
49 AC_SUBST([LLVM_VERSION_SUFFIX])
51 dnl Provide a copyright substitution and ensure the copyright notice is included
52 dnl in the output of --version option of the generated configure script.
53 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
54 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
56 dnl Indicate that we require autoconf 2.60 or later.
59 dnl Verify that the source directory is valid. This makes sure that we are
60 dnl configuring LLVM and not some other package (it validates --srcdir argument)
61 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
63 dnl Place all of the extra autoconf files into the config subdirectory. Tell
64 dnl various tools where the m4 autoconf macros are.
65 AC_CONFIG_AUX_DIR([autoconf])
67 dnl Quit if the source directory has already been configured.
68 dnl NOTE: This relies upon undocumented autoconf behavior.
69 if test ${srcdir} != "." ; then
70 if test -f ${srcdir}/include/llvm/Config/config.h ; then
71 AC_MSG_ERROR([Already configured in ${srcdir}])
75 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
76 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
80 dnl We need to check for the compiler up here to avoid anything else
81 dnl starting with a different one.
83 AC_PROG_CXX(clang++ g++)
86 dnl If CXX is Clang, check that it can find and parse C++ standard library
88 if test "$CXX" = "clang++" ; then
89 AC_MSG_CHECKING([whether clang works])
91 dnl Note that space between 'include' and '(' is required. There's a broken
92 dnl regex in aclocal that otherwise will think that we call m4's include
94 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
95 #if __has_include (<cxxabi.h>)
98 #if __has_include (<unwind.h>)
107 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
112 dnl Set up variables that track whether the host compiler is GCC or Clang where
113 dnl we can effectively sanity check them. We don't try to sanity check all the
114 dnl other possible compilers.
115 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
117 llvm_cv_cxx_compiler=unknown
118 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
122 llvm_cv_cxx_compiler=clang,
123 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
127 llvm_cv_cxx_compiler=gcc, [])])
129 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
131 dnl Configure all of the projects present in our source tree. While we could
132 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
133 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
134 dnl Instead we match on the known projects.
137 dnl One tricky part of doing this is that some projects depend upon other
138 dnl projects. For example, several projects rely upon the LLVM test suite.
139 dnl We want to configure those projects first so that their object trees are
140 dnl created before running the configure scripts of projects that depend upon
144 dnl Several projects use the LLVM test suite, so configure it next.
145 if test -d ${srcdir}/projects/test-suite ; then
146 AC_CONFIG_SUBDIRS([projects/test-suite])
149 dnl llvm-test is the old name of the test-suite, kept here for backwards
151 if test -d ${srcdir}/projects/llvm-test ; then
152 AC_CONFIG_SUBDIRS([projects/llvm-test])
155 dnl Some projects use poolalloc; configure that next
156 if test -d ${srcdir}/projects/poolalloc ; then
157 AC_CONFIG_SUBDIRS([projects/poolalloc])
160 if test -d ${srcdir}/projects/llvm-poolalloc ; then
161 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
164 dnl Check for all other projects
165 for i in `ls ${srcdir}/projects`
167 if test -d ${srcdir}/projects/${i} ; then
169 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
176 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
182 dnl Disable the build of polly, even if it is checked out into tools/polly.
184 AS_HELP_STRING([--enable-polly],
185 [Use polly if available (default is YES)]),,
188 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
189 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
190 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
191 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
195 dnl Check if polly is checked out into tools/polly and configure it if
197 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
198 AC_SUBST(LLVM_HAS_POLLY,1)
199 AC_CONFIG_SUBDIRS([tools/polly])
202 dnl===-----------------------------------------------------------------------===
204 dnl=== SECTION 2: Architecture, target, and host checks
206 dnl===-----------------------------------------------------------------------===
208 dnl Check the target for which we're compiling and the host that will do the
209 dnl compilations. This will tell us which LLVM compiler will be used for
210 dnl compiling SSA into object code. This needs to be done early because
211 dnl following tests depend on it.
214 dnl Determine the platform type and cache its value. This helps us configure
215 dnl the System library to the correct build platform.
216 AC_CACHE_CHECK([type of operating system we're going to host on],
220 llvm_cv_link_all_option="-Wl,--whole-archive"
221 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
222 llvm_cv_os_type="AIX"
223 llvm_cv_platform_type="Unix" ;;
225 llvm_cv_link_all_option="-Wl,--whole-archive"
226 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
227 llvm_cv_os_type="IRIX"
228 llvm_cv_platform_type="Unix" ;;
230 llvm_cv_link_all_option="-Wl,--whole-archive"
231 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
232 llvm_cv_os_type="Cygwin"
233 llvm_cv_platform_type="Unix" ;;
235 llvm_cv_link_all_option="-Wl,-all_load"
236 llvm_cv_no_link_all_option="-Wl,-noall_load"
237 llvm_cv_os_type="Darwin"
238 llvm_cv_platform_type="Unix" ;;
240 llvm_cv_link_all_option="-Wl,-all_load"
241 llvm_cv_no_link_all_option="-Wl,-noall_load"
242 llvm_cv_os_type="Minix"
243 llvm_cv_platform_type="Unix" ;;
245 llvm_cv_link_all_option="-Wl,--whole-archive"
246 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
247 llvm_cv_os_type="FreeBSD"
248 llvm_cv_platform_type="Unix" ;;
250 llvm_cv_link_all_option="-Wl,--whole-archive"
251 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
252 llvm_cv_os_type="GNU/kFreeBSD"
253 llvm_cv_platform_type="Unix" ;;
255 llvm_cv_link_all_option="-Wl,--whole-archive"
256 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
257 llvm_cv_os_type="OpenBSD"
258 llvm_cv_platform_type="Unix" ;;
260 llvm_cv_link_all_option="-Wl,--whole-archive"
261 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
262 llvm_cv_os_type="NetBSD"
263 llvm_cv_platform_type="Unix" ;;
265 llvm_cv_link_all_option="-Wl,--whole-archive"
266 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
267 llvm_cv_os_type="DragonFly"
268 llvm_cv_platform_type="Unix" ;;
270 llvm_cv_link_all_option="-Wl,--whole-archive"
271 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
272 llvm_cv_os_type="HP-UX"
273 llvm_cv_platform_type="Unix" ;;
275 llvm_cv_link_all_option="-Wl,--whole-archive"
276 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
277 llvm_cv_os_type="Interix"
278 llvm_cv_platform_type="Unix" ;;
280 llvm_cv_link_all_option="-Wl,--whole-archive"
281 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
282 llvm_cv_os_type="Linux"
283 llvm_cv_platform_type="Unix" ;;
285 llvm_cv_link_all_option="-Wl,--whole-archive"
286 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
287 llvm_cv_os_type="GNU"
288 llvm_cv_platform_type="Unix" ;;
290 llvm_cv_link_all_option="-Wl,-z,allextract"
291 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
292 llvm_cv_os_type="SunOS"
293 llvm_cv_platform_type="Unix" ;;
295 llvm_cv_link_all_option="-Wl,-z,allextract"
296 llvm_cv_link_all_option="-Wl,-z,defaultextract"
297 llvm_cv_os_type="AuroraUX"
298 llvm_cv_platform_type="Unix" ;;
300 llvm_cv_link_all_option="-Wl,--whole-archive"
301 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
302 llvm_cv_os_type="Win32"
303 llvm_cv_platform_type="Win32" ;;
305 llvm_cv_link_all_option="-Wl,--whole-archive"
306 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
307 llvm_cv_os_type="MingW"
308 llvm_cv_platform_type="Win32" ;;
310 llvm_cv_link_all_option="-Wl,--whole-archive"
311 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
312 llvm_cv_os_type="Haiku"
313 llvm_cv_platform_type="Unix" ;;
315 llvm_cv_link_all_option="-Wl,--whole-archive"
316 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
317 llvm_cv_os_type="Freestanding"
318 llvm_cv_platform_type="Unix" ;;
320 llvm_cv_link_all_option="-Wl,--whole-archive"
321 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
322 llvm_cv_os_type="Freestanding"
323 llvm_cv_platform_type="Unix" ;;
325 llvm_cv_link_all_option=""
326 llvm_cv_no_link_all_option=""
327 llvm_cv_os_type="Unknown"
328 llvm_cv_platform_type="Unknown" ;;
331 AC_CACHE_CHECK([type of operating system we're going to target],
332 [llvm_cv_target_os_type],
335 llvm_cv_target_os_type="AIX" ;;
337 llvm_cv_target_os_type="IRIX" ;;
339 llvm_cv_target_os_type="Cygwin" ;;
341 llvm_cv_target_os_type="Darwin" ;;
343 llvm_cv_target_os_type="Minix" ;;
345 llvm_cv_target_os_type="FreeBSD" ;;
347 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
349 llvm_cv_target_os_type="OpenBSD" ;;
351 llvm_cv_target_os_type="NetBSD" ;;
353 llvm_cv_target_os_type="DragonFly" ;;
355 llvm_cv_target_os_type="HP-UX" ;;
357 llvm_cv_target_os_type="Interix" ;;
359 llvm_cv_target_os_type="Linux" ;;
361 llvm_cv_target_os_type="GNU" ;;
363 llvm_cv_target_os_type="SunOS" ;;
365 llvm_cv_target_os_type="AuroraUX" ;;
367 llvm_cv_target_os_type="Win32" ;;
369 llvm_cv_target_os_type="MingW" ;;
371 llvm_cv_target_os_type="Haiku" ;;
373 llvm_cv_target_os_type="RTEMS" ;;
375 llvm_cv_target_os_type="NativeClient" ;;
377 llvm_cv_target_os_type="Freestanding" ;;
379 llvm_cv_target_os_type="Unknown" ;;
382 dnl Make sure we aren't attempting to configure for an unknown system
383 if test "$llvm_cv_os_type" = "Unknown" ; then
384 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
387 dnl Set the "OS" Makefile variable based on the platform type so the
388 dnl makefile can configure itself to specific build hosts
389 AC_SUBST(OS,$llvm_cv_os_type)
390 AC_SUBST(HOST_OS,$llvm_cv_os_type)
391 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
393 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
394 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
395 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
397 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
398 dnl This is used by lib/Support to determine the basic kind of implementation
400 case $llvm_cv_platform_type in
402 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
403 AC_SUBST(LLVM_ON_UNIX,[1])
404 AC_SUBST(LLVM_ON_WIN32,[0])
407 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
408 AC_SUBST(LLVM_ON_UNIX,[0])
409 AC_SUBST(LLVM_ON_WIN32,[1])
413 dnl Determine what our target architecture is and configure accordingly.
414 dnl This will allow Makefiles to make a distinction between the hardware and
416 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
418 i?86-*) llvm_cv_target_arch="x86" ;;
419 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
420 sparc*-*) llvm_cv_target_arch="Sparc" ;;
421 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
422 arm*-*) llvm_cv_target_arch="ARM" ;;
423 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
424 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
425 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
426 xcore-*) llvm_cv_target_arch="XCore" ;;
427 msp430-*) llvm_cv_target_arch="MSP430" ;;
428 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
429 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
430 s390x-*) llvm_cv_target_arch="SystemZ" ;;
431 *) llvm_cv_target_arch="Unknown" ;;
434 if test "$llvm_cv_target_arch" = "Unknown" ; then
435 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
438 dnl Determine the LLVM native architecture for the target
439 case "$llvm_cv_target_arch" in
440 x86) LLVM_NATIVE_ARCH="X86" ;;
441 x86_64) LLVM_NATIVE_ARCH="X86" ;;
442 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
445 dnl Define a substitution, ARCH, for the target architecture
446 AC_SUBST(ARCH,$llvm_cv_target_arch)
447 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
449 dnl Determine what our host architecture.
450 dnl This will allow MCJIT regress tests runs only for supported
453 i?86-*) host_arch="x86" ;;
454 amd64-* | x86_64-*) host_arch="x86_64" ;;
455 sparc*-*) host_arch="Sparc" ;;
456 powerpc*-*) host_arch="PowerPC" ;;
457 arm*-*) host_arch="ARM" ;;
458 aarch64*-*) host_arch="AArch64" ;;
459 mips-* | mips64-*) host_arch="Mips" ;;
460 mipsel-* | mips64el-*) host_arch="Mips" ;;
461 xcore-*) host_arch="XCore" ;;
462 msp430-*) host_arch="MSP430" ;;
463 hexagon-*) host_arch="Hexagon" ;;
464 s390x-*) host_arch="SystemZ" ;;
465 *) host_arch="Unknown" ;;
468 if test "$host_arch" = "Unknown" ; then
469 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
472 AC_SUBST(HOST_ARCH,$host_arch)
474 dnl Check for build platform executable suffix if we're cross-compiling
475 if test "$cross_compiling" = yes; then
476 AC_SUBST(LLVM_CROSS_COMPILING, [1])
478 ac_build_prefix=${build_alias}-
479 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
480 if test -z "$BUILD_CXX"; then
481 AC_CHECK_PROG(BUILD_CXX, g++, g++)
482 if test -z "$BUILD_CXX"; then
483 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
487 AC_SUBST(LLVM_CROSS_COMPILING, [0])
490 dnl Check to see if there's a .svn or .git directory indicating that this
491 dnl build is being done from a checkout. This sets up several defaults for
492 dnl the command line switches. When we build with a checkout directory,
493 dnl we get a debug with assertions turned on. Without, we assume a source
494 dnl release and we get an optimized build without assertions.
495 dnl See --enable-optimized and --enable-assertions below
496 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
499 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
505 dnl===-----------------------------------------------------------------------===
507 dnl=== SECTION 3: Command line arguments for the configure script.
509 dnl===-----------------------------------------------------------------------===
511 dnl --enable-libcpp : check whether or not to use libc++ on the command line
512 AC_ARG_ENABLE(libcpp,
513 AS_HELP_STRING([--enable-libcpp],
514 [Use libc++ if available (default is NO)]),,
517 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
518 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
519 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
520 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
523 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
524 dnl be bypassed by passing a flag if necessary on a platform. We have to do
525 dnl these checks here so that we have the configuration of the standard C++
526 dnl library finished.
527 AC_ARG_ENABLE(compiler-version-checks,
528 AS_HELP_STRING([--enable-compiler-version-checks],
529 [Check the version of the host compiler (default is YES)]),,
536 case "$llvm_cv_cxx_compiler" in
538 AC_MSG_CHECKING([whether Clang is new enough])
539 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
540 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
541 #error This version of Clang is too old to build LLVM
544 [AC_MSG_RESULT([yes])],
547 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
548 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
549 bypass these sanity checks.])])
551 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
552 dnl are sometimes deeply confusing though. Here we test for an obvious
553 dnl incomplete feature in 4.6's standard library that was completed in
554 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
555 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
556 dnl that happening in the Makefile.
557 if test "$ENABLE_LIBCPP" -eq 0 ; then
558 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
559 llvm_cv_old_cxxflags="$CXXFLAGS"
560 CXXFLAGS="$CXXFLAGS -std=c++0x"
561 AC_LINK_IFELSE([AC_LANG_SOURCE([[
563 std::atomic<float> x(0.0f);
564 int main() { return (float)x; }
566 [AC_MSG_RESULT([yes])],
569 We detected a missing feature in the standard C++ library that was known to be
570 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
571 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
572 than 4.7. You will need to update your system and ensure Clang uses the newer
575 If this error is incorrect or you need to force things to work, you may pass
576 '--disable-compiler-version-checks' to configure to bypass this test.])])
577 CXXFLAGS="$llvm_cv_old_cxxflags"
581 AC_MSG_CHECKING([whether GCC is new enough])
582 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
583 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
584 #error This version of GCC is too old to build LLVM
587 [AC_MSG_RESULT([yes])],
590 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
591 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
592 bypass these sanity checks.])])
600 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
604 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
606 AS_HELP_STRING([--enable-cxx1y],
607 [Use c++1y if available (default is NO)]),,
610 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
611 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
612 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
613 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
616 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
618 AC_ARG_ENABLE(split-dwarf,
619 AS_HELP_STRING([--enable-split-dwarf],
620 [Use split-dwarf if available (default is NO)]),,
623 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
624 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
625 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
626 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
629 dnl --enable-clang-arcmt: check whether to enable clang arcmt
631 AC_ARG_ENABLE(clang-arcmt,
632 AS_HELP_STRING([--enable-clang-arcmt],
633 [Enable building of clang ARCMT (default is YES)]),
634 clang_arcmt="$enableval",
637 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
638 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
639 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
640 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
643 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
644 clang_plugin_support="yes"
645 AC_ARG_ENABLE(clang-plugin-support,
646 AS_HELP_STRING([--enable-clang-plugin-support],
647 [Enable plugin support in clang (default is YES)]),
648 clang_plugin_support="$enableval",
651 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
652 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
653 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
654 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
657 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
658 clang_static_analyzer="yes"
659 AC_ARG_ENABLE(clang-static-analyzer,
660 AS_HELP_STRING([--enable-clang-static-analyzer],
661 [Enable building of clang Static Analyzer (default is YES)]),
662 clang_static_analyzer="$enableval",
665 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
667 if test ${clang_arcmt} != "no" ; then
668 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
670 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
672 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
673 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
676 dnl --enable-clang-rewriter: check whether to enable clang rewriter
677 AC_ARG_ENABLE(clang-rewriter,
678 AS_HELP_STRING([--enable-clang-rewriter],
679 [Enable building of clang rewriter (default is YES)]),,
682 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
684 if test ${clang_arcmt} != "no" ; then
685 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
687 if test ${clang_static_analyzer} != "no" ; then
688 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
690 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
692 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
693 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
696 dnl --enable-optimized : check whether they want to do an optimized build:
697 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
698 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
699 if test ${enableval} = "no" ; then
700 AC_SUBST(ENABLE_OPTIMIZED,[[]])
702 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
705 dnl --enable-profiling : check whether they want to do a profile build:
706 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
707 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
708 if test ${enableval} = "no" ; then
709 AC_SUBST(ENABLE_PROFILING,[[]])
711 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
714 dnl --enable-assertions : check whether they want to turn on assertions or not:
715 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
716 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
717 if test ${enableval} = "yes" ; then
718 AC_SUBST(DISABLE_ASSERTIONS,[[]])
720 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
723 dnl --enable-werror : check whether we want Werror on by default
724 AC_ARG_ENABLE(werror,AS_HELP_STRING(
725 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
727 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
728 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
729 default) AC_SUBST(ENABLE_WERROR,[0]);;
730 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
733 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
734 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
735 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
736 if test ${enableval} = "yes" ; then
737 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
738 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
740 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
741 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
744 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
745 AC_ARG_ENABLE(debug-runtime,
746 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
747 if test ${enableval} = "no" ; then
748 AC_SUBST(DEBUG_RUNTIME,[[]])
750 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
753 dnl --enable-debug-symbols : should even optimized compiler libraries
754 dnl have debug symbols?
755 AC_ARG_ENABLE(debug-symbols,
756 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)
757 if test ${enableval} = "no" ; then
758 AC_SUBST(DEBUG_SYMBOLS,[[]])
760 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
763 dnl --enable-keep-symbols : do not strip installed executables
764 AC_ARG_ENABLE(keep-symbols,
765 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
766 if test ${enableval} = "no" ; then
767 AC_SUBST(KEEP_SYMBOLS,[[]])
769 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
772 dnl --enable-jit: check whether they want to enable the jit
774 AS_HELP_STRING(--enable-jit,
775 [Enable Just In Time Compiling (default is YES)]),,
777 if test ${enableval} = "no"
781 case "$llvm_cv_target_arch" in
782 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
783 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
784 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
785 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
786 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
787 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
788 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
789 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
790 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
791 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
792 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
793 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
794 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
798 TARGETS_WITH_JIT="AArch64 ARM Mips PowerPC SystemZ X86"
799 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
801 dnl Allow enablement of building and installing docs
803 AS_HELP_STRING([--enable-docs],
804 [Build documents (default is YES)]),,
807 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
808 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
809 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
810 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
813 dnl Allow enablement of doxygen generated documentation
814 AC_ARG_ENABLE(doxygen,
815 AS_HELP_STRING([--enable-doxygen],
816 [Build doxygen documentation (default is NO)]),,
819 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
820 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
821 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
822 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
825 dnl Allow disablement of threads
826 AC_ARG_ENABLE(threads,
827 AS_HELP_STRING([--enable-threads],
828 [Use threads if available (default is YES)]),,
831 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
832 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
833 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
834 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
836 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
837 [Define if threads enabled])
839 dnl Allow disablement of pthread.h
840 AC_ARG_ENABLE(pthreads,
841 AS_HELP_STRING([--enable-pthreads],
842 [Use pthreads if available (default is YES)]),,
845 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
846 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
847 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
848 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
851 dnl Allow disablement of zlib
853 AS_HELP_STRING([--enable-zlib],
854 [Use zlib for compression/decompression if
855 available (default is YES)]),,
858 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
859 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
860 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
861 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
863 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
864 [Define if zlib is enabled])
866 dnl Allow building without position independent code
868 AS_HELP_STRING([--enable-pic],
869 [Build LLVM with Position Independent Code (default is YES)]),,
872 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
873 no) AC_SUBST(ENABLE_PIC,[0]) ;;
874 default) AC_SUBST(ENABLE_PIC,[1]) ;;
875 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
877 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
878 [Define if position independent code is enabled])
880 dnl Allow building a shared library and linking tools against it.
881 AC_ARG_ENABLE(shared,
882 AS_HELP_STRING([--enable-shared],
883 [Build a shared library and link tools against it (default is NO)]),,
886 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
887 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
888 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
889 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
892 dnl Allow libstdc++ is embedded in LLVM.dll.
893 AC_ARG_ENABLE(embed-stdcxx,
894 AS_HELP_STRING([--enable-embed-stdcxx],
895 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
898 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
899 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
900 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
901 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
904 dnl Enable embedding timestamp information into build.
905 AC_ARG_ENABLE(timestamps,
906 AS_HELP_STRING([--enable-timestamps],
907 [Enable embedding timestamp information in build (default is YES)]),,
910 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
911 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
912 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
913 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
915 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
916 [Define if timestamp information (e.g., __DATE__) is allowed])
918 dnl Enable support for showing backtraces.
919 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
920 [--enable-backtraces],
921 [Enable embedding backtraces on crash (default is YES)]),
922 [case "$enableval" in
923 yes) llvm_cv_enable_backtraces="yes" ;;
924 no) llvm_cv_enable_backtraces="no" ;;
925 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
927 llvm_cv_enable_backtraces="yes")
928 if test "$llvm_cv_enable_backtraces" = "yes" ; then
929 AC_DEFINE([ENABLE_BACKTRACES],[1],
930 [Define if you want backtraces on crash])
933 dnl Enable installing platform specific signal handling overrides, for improved
934 dnl CrashRecovery support or interaction with crash reporting software. This
935 dnl support may be inappropriate for some clients embedding LLVM as a library.
936 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
937 [--enable-crash-overrides],
938 [Enable crash handling overrides (default is YES)]),
939 [case "$enableval" in
940 yes) llvm_cv_enable_crash_overrides="yes" ;;
941 no) llvm_cv_enable_crash_overrides="no" ;;
942 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
944 llvm_cv_enable_crash_overrides="yes")
945 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
946 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
947 [Define to enable crash handling overrides])
950 dnl List all possible targets
951 ALL_TARGETS="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
952 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
954 dnl Allow specific targets to be specified for building (or not)
956 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
957 [Build specific host targets: all or target1,target2,... Valid targets are:
958 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
959 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
961 if test "$enableval" = host-only ; then
965 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
966 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
968 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
969 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
970 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
971 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
972 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
973 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
974 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
975 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
976 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
977 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
978 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
979 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
980 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
981 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
982 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
983 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
984 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
985 host) case "$llvm_cv_target_arch" in
986 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
987 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
988 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
989 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
990 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
991 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
992 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
993 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
994 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
995 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
996 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
997 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
998 *) AC_MSG_ERROR([Can not set target to build]) ;;
1000 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
1006 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
1007 [Build experimental host targets: disable or target1,target2,...
1008 (default=disable)]),,
1011 if test ${enableval} != "disable"
1013 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
1016 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1018 dnl Determine whether we are building LLVM support for the native architecture.
1019 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1020 for a_target in $TARGETS_TO_BUILD; do
1021 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1022 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1023 [LLVM architecture name for the native architecture, if available])
1024 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1025 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1026 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1027 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1028 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1029 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1031 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1032 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1034 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1035 [LLVM name for the native Target init function, if available])
1036 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1037 [LLVM name for the native TargetInfo init function, if available])
1038 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1039 [LLVM name for the native target MC init function, if available])
1040 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1041 [LLVM name for the native AsmPrinter init function, if available])
1042 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1043 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1044 [LLVM name for the native AsmParser init function, if available])
1046 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1047 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1048 [LLVM name for the native Disassembler init function, if available])
1053 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1054 dnl target feature def files.
1055 LLVM_ENUM_TARGETS=""
1056 LLVM_ENUM_ASM_PRINTERS=""
1057 LLVM_ENUM_ASM_PARSERS=""
1058 LLVM_ENUM_DISASSEMBLERS=""
1059 for target_to_build in $TARGETS_TO_BUILD; do
1060 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1061 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1062 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1064 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1065 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1067 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1068 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1071 AC_SUBST(LLVM_ENUM_TARGETS)
1072 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1073 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1074 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1076 dnl Override the option to use for optimized builds.
1077 AC_ARG_WITH(optimize-option,
1078 AS_HELP_STRING([--with-optimize-option],
1079 [Select the compiler options to use for optimized builds]),,
1081 AC_MSG_CHECKING([optimization flags])
1084 case "$llvm_cv_os_type" in
1085 FreeBSD) optimize_option=-O2 ;;
1086 MingW) optimize_option=-O2 ;;
1087 *) optimize_option=-O3 ;;
1089 *) optimize_option="$withval" ;;
1091 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1092 AC_MSG_RESULT([$optimize_option])
1094 dnl Specify extra build options
1095 AC_ARG_WITH(extra-options,
1096 AS_HELP_STRING([--with-extra-options],
1097 [Specify additional options to compile LLVM with]),,
1100 default) EXTRA_OPTIONS= ;;
1101 *) EXTRA_OPTIONS=$withval ;;
1103 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1105 dnl Specify extra linker build options
1106 AC_ARG_WITH(extra-ld-options,
1107 AS_HELP_STRING([--with-extra-ld-options],
1108 [Specify additional options to link LLVM with]),,
1111 default) EXTRA_LD_OPTIONS= ;;
1112 *) EXTRA_LD_OPTIONS=$withval ;;
1114 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1116 dnl Allow specific bindings to be specified for building (or not)
1117 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1118 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1120 BINDINGS_TO_BUILD=""
1121 case "$enableval" in
1122 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1123 all ) BINDINGS_TO_BUILD="ocaml" ;;
1124 none | no) BINDINGS_TO_BUILD="" ;;
1125 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1126 case "$a_binding" in
1127 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1128 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1134 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1135 dnl script for bindings/ocaml/configure, except that its auto value depends on
1136 dnl OCAMLC, which is found here to support tests.
1137 AC_ARG_WITH([ocaml-libdir],
1138 [AS_HELP_STRING([--with-ocaml-libdir],
1139 [Specify install location for ocaml bindings (default is stdlib)])],
1143 auto) with_ocaml_libdir="$withval" ;;
1144 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1145 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1148 AC_ARG_WITH(clang-srcdir,
1149 AS_HELP_STRING([--with-clang-srcdir],
1150 [Directory to the out-of-tree Clang source]),,
1153 -) clang_src_root="" ;;
1154 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1155 *) clang_src_root="$ac_pwd/$withval" ;;
1157 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1159 AC_ARG_WITH(clang-resource-dir,
1160 AS_HELP_STRING([--with-clang-resource-dir],
1161 [Relative directory from the Clang binary for resource files]),,
1163 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1164 [Relative directory for resource files])
1166 AC_ARG_WITH(c-include-dirs,
1167 AS_HELP_STRING([--with-c-include-dirs],
1168 [Colon separated list of directories clang will search for headers]),,
1170 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1171 [Directories clang will search for headers])
1173 # Clang normally uses the system c++ headers and libraries. With this option,
1174 # clang will use the ones provided by a gcc installation instead. This option should
1175 # be passed the same value that was used with --prefix when configuring gcc.
1176 AC_ARG_WITH(gcc-toolchain,
1177 AS_HELP_STRING([--with-gcc-toolchain],
1178 [Directory where gcc is installed.]),,
1180 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1181 [Directory where gcc is installed.])
1183 AC_ARG_WITH(default-sysroot,
1184 AS_HELP_STRING([--with-default-sysroot],
1185 [Add --sysroot=<path> to all compiler invocations.]),,
1187 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1188 [Default <path> to all compiler invocations for --sysroot=<path>.])
1190 dnl Allow linking of LLVM with GPLv3 binutils code.
1191 AC_ARG_WITH(binutils-include,
1192 AS_HELP_STRING([--with-binutils-include],
1193 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1196 default) WITH_BINUTILS_INCDIR=default ;;
1197 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1198 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1200 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1201 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1202 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1203 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1204 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1208 dnl Specify the URL where bug reports should be submitted.
1209 AC_ARG_WITH(bug-report-url,
1210 AS_HELP_STRING([--with-bug-report-url],
1211 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1212 withval="http://llvm.org/bugs/")
1213 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1216 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1217 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1218 [--enable-terminfo],
1219 [Query the terminfo database if available (default is YES)]),
1220 [case "$enableval" in
1221 yes) llvm_cv_enable_terminfo="yes" ;;
1222 no) llvm_cv_enable_terminfo="no" ;;
1223 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1225 llvm_cv_enable_terminfo="yes")
1226 case "$llvm_cv_enable_terminfo" in
1227 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1228 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1231 dnl --enable-libedit: check whether the user wants to turn off libedit.
1232 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1234 [Use libedit if available (default is YES)]),
1235 [case "$enableval" in
1236 yes) llvm_cv_enable_libedit="yes" ;;
1237 no) llvm_cv_enable_libedit="no" ;;
1238 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1240 llvm_cv_enable_libedit="yes")
1242 dnl --enable-libffi : check whether the user wants to turn off libffi:
1243 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1244 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1245 [case "$enableval" in
1246 yes) llvm_cv_enable_libffi="yes" ;;
1247 no) llvm_cv_enable_libffi="no" ;;
1248 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1250 llvm_cv_enable_libffi=no)
1252 AC_ARG_WITH(internal-prefix,
1253 AS_HELP_STRING([--with-internal-prefix],
1254 [Installation directory for internal files]),,
1256 AC_SUBST(INTERNAL_PREFIX,[$withval])
1258 dnl===-----------------------------------------------------------------------===
1260 dnl=== SECTION 4: Check for programs we need and that they are the right version
1262 dnl===-----------------------------------------------------------------------===
1264 dnl Check for the tools that the makefiles require
1267 AC_PATH_PROG(NM, [nm], [nm])
1268 AC_PATH_PROG(CMP, [cmp], [cmp])
1269 AC_PATH_PROG(CP, [cp], [cp])
1270 AC_PATH_PROG(DATE, [date], [date])
1271 AC_PATH_PROG(FIND, [find], [find])
1272 AC_PATH_PROG(GREP, [grep], [grep])
1273 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1274 AC_PATH_PROG(MV, [mv], [mv])
1276 AC_CHECK_TOOL(AR, ar, false)
1277 AC_PATH_PROG(RM, [rm], [rm])
1278 AC_PATH_PROG(SED, [sed], [sed])
1279 AC_PATH_PROG(TAR, [tar], [gtar])
1280 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1282 dnl Looking for misc. graph plotting software
1283 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1284 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1285 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1286 dnl If we're targeting for mingw we should emit windows paths, not msys
1287 if test "$llvm_cv_os_type" = "MingW" ; then
1288 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1290 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1291 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1293 AC_PATH_PROG(DOT, [dot], [echo dot])
1294 if test "$DOT" != "echo dot" ; then
1295 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1296 dnl If we're targeting for mingw we should emit windows paths, not msys
1297 if test "$llvm_cv_os_type" = "MingW" ; then
1298 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1300 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1301 [Define to path to dot program if found or 'echo dot' otherwise])
1303 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1304 if test "$FDP" != "echo fdp" ; then
1305 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1306 dnl If we're targeting for mingw we should emit windows paths, not msys
1307 if test "$llvm_cv_os_type" = "MingW" ; then
1308 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1310 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1311 [Define to path to fdp program if found or 'echo fdp' otherwise])
1313 AC_PATH_PROG(NEATO, [neato], [echo neato])
1314 if test "$NEATO" != "echo neato" ; then
1315 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1316 dnl If we're targeting for mingw we should emit windows paths, not msys
1317 if test "$llvm_cv_os_type" = "MingW" ; then
1318 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1320 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1321 [Define to path to neato program if found or 'echo neato' otherwise])
1323 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1324 if test "$TWOPI" != "echo twopi" ; then
1325 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1326 dnl If we're targeting for mingw we should emit windows paths, not msys
1327 if test "$llvm_cv_os_type" = "MingW" ; then
1328 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1330 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1331 [Define to path to twopi program if found or 'echo twopi' otherwise])
1333 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1334 if test "$CIRCO" != "echo circo" ; then
1335 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1336 dnl If we're targeting for mingw we should emit windows paths, not msys
1337 if test "$llvm_cv_os_type" = "MingW" ; then
1338 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1340 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1341 [Define to path to circo program if found or 'echo circo' otherwise])
1343 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1344 if test "$GV" != "echo gv" ; then
1345 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1346 dnl If we're targeting for mingw we should emit windows paths, not msys
1347 if test "$llvm_cv_os_type" = "MingW" ; then
1348 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1350 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1351 [Define to path to gv program if found or 'echo gv' otherwise])
1353 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1354 if test "$DOTTY" != "echo dotty" ; then
1355 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1356 dnl If we're targeting for mingw we should emit windows paths, not msys
1357 if test "$llvm_cv_os_type" = "MingW" ; then
1358 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1360 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1361 [Define to path to dotty program if found or 'echo dotty' otherwise])
1363 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1364 if test "$XDOT" != "echo xdot" ; then
1365 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1366 dnl If we're targeting for mingw we should emit windows paths, not msys
1367 if test "$llvm_cv_os_type" = "MingW" ; then
1368 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1370 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1371 [Define to path to xdot program if found or 'echo xdot' otherwise])
1374 dnl Find the install program
1376 dnl Prepend src dir to install path dir if it's a relative path
1377 dnl This is a hack for installs that take place in something other
1378 dnl than the top level.
1380 [[\\/$]]* | ?:[[\\/]]* ) ;;
1381 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1384 dnl Checks for documentation and testing tools that we can do without. If these
1385 dnl are not found then they are set to "true" which always succeeds but does
1386 dnl nothing. This just lets the build output show that we could have done
1387 dnl something if the tool was available.
1388 AC_PATH_PROG(BZIP2, [bzip2])
1389 AC_PATH_PROG(CAT, [cat])
1390 AC_PATH_PROG(DOXYGEN, [doxygen])
1391 AC_PATH_PROG(GROFF, [groff])
1392 AC_PATH_PROG(GZIPBIN, [gzip])
1393 AC_PATH_PROG(PDFROFF, [pdfroff])
1394 AC_PATH_PROG(ZIP, [zip])
1395 AC_PATH_PROGS(OCAMLC, [ocamlc])
1396 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1397 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1398 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1399 AC_PATH_PROGS(GAS, [gas as])
1401 dnl Get the version of the linker in use.
1404 dnl Determine whether the linker supports the -R option.
1407 dnl Determine whether the compiler supports the -rdynamic option.
1408 AC_LINK_EXPORT_DYNAMIC
1410 dnl Determine whether the linker supports the --version-script option.
1411 AC_LINK_VERSION_SCRIPT
1413 AC_CHECK_HEADERS([errno.h])
1415 case "$llvm_cv_os_type" in
1416 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1417 Darwin) llvm_shlib_ext=.dylib ;;
1418 *) llvm_shlib_ext=.so ;;
1421 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1423 AC_MSG_CHECKING([tool compatibility])
1425 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1426 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1427 dnl to support those options.
1428 dnl "icc" emits gcc signatures
1429 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1441 if test "$GCC" != "yes" && test "$ICC" != "yes"
1443 AC_MSG_ERROR([gcc|icc required but not found])
1446 dnl Ensure that compilation tools are compatible with GCC extensions
1447 if test "$GXX" != "yes" && test "$IXX" != "yes"
1449 AC_MSG_ERROR([g++|clang++|icc required but not found])
1452 dnl Verify that GCC is version 3.0 or higher
1453 if test "$GCC" = "yes"
1458 #if !defined(__GNUC__) || __GNUC__ < 3
1459 #error Unsupported GCC version
1463 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1466 dnl Check for GNU Make. We use its extensions, so don't build without it
1467 if test -z "$llvm_cv_gnu_make_command"
1469 AC_MSG_ERROR([GNU Make required but not found])
1472 dnl Tool compatibility is okay if we make it here.
1475 dnl Check optional compiler flags.
1476 AC_MSG_CHECKING([optional compiler flags])
1477 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1478 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1479 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1481 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1482 dnl false positives, so disable it.
1484 NO_MAYBE_UNINITIALIZED=
1485 if test "$GXX" = "yes"
1487 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1488 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1489 dnl known to be uninitialized from cases which might be uninitialized. We
1490 dnl still want to catch the first kind of errors.
1491 if test -z "$NO_MAYBE_UNINITIALIZED"
1493 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1496 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1498 AC_ARG_WITH([python],
1499 [AS_HELP_STRING([--with-python], [path to python])],
1500 [PYTHON="$withval"])
1502 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1503 AC_MSG_CHECKING([for python])
1504 AC_MSG_RESULT([user defined: $with_python])
1506 if test -n "$PYTHON" ; then
1507 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1510 AC_PATH_PROG([PYTHON], [python python2 python26],
1511 [AC_MSG_RESULT([not found])
1512 AC_MSG_ERROR([could not find python 2.5 or higher])])
1515 AC_MSG_CHECKING([for python >= 2.5])
1516 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1517 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1518 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1519 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1520 if test "$ac_python_version_major" -gt "2" || \
1521 (test "$ac_python_version_major" -eq "2" && \
1522 test "$ac_python_version_minor" -ge "5") ; then
1523 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1525 AC_MSG_RESULT([not found])
1526 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1529 dnl===-----------------------------------------------------------------------===
1531 dnl=== SECTION 5: Check for libraries
1533 dnl===-----------------------------------------------------------------------===
1536 if test "$llvm_cv_os_type" = "MingW" ; then
1537 AC_CHECK_LIB(imagehlp, main)
1538 AC_CHECK_LIB(psapi, main)
1539 AC_CHECK_LIB(shell32, main)
1542 dnl dlopen() is required for plugin support.
1543 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1544 [Define if dlopen() is available on this platform.]),
1545 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1547 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1548 dnl macros to detect whether clock_gettime is available, this just finds the
1549 dnl right libraries to link with.
1550 AC_SEARCH_LIBS(clock_gettime,rt)
1552 dnl The curses library is optional; used for querying terminal info
1553 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1554 dnl We need the has_color functionality in curses for it to be useful.
1555 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1556 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1557 [Define if the setupterm() function is supported this platform.]))
1560 dnl The libedit library is optional; used by lib/LineEditor
1561 if test "$llvm_cv_enable_libedit" = "yes" ; then
1562 AC_SEARCH_LIBS(el_init,edit,
1563 AC_DEFINE([HAVE_LIBEDIT],[1],
1564 [Define if libedit is available on this platform.]))
1567 dnl libffi is optional; used to call external functions from the interpreter
1568 if test "$llvm_cv_enable_libffi" = "yes" ; then
1569 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1570 [Define if libffi is available on this platform.]),
1571 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1574 dnl mallinfo is optional; the code can compile (minus features) without it
1575 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1576 [Define if mallinfo() is available on this platform.]))
1578 dnl pthread locking functions are optional - but llvm will not be thread-safe
1580 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1581 AC_CHECK_LIB(pthread, pthread_mutex_init)
1582 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1583 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1584 [Have pthread_mutex_lock]))
1585 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1586 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1587 [Have pthread_rwlock_init]))
1588 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1589 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1590 [Have pthread_getspecific]))
1593 dnl zlib is optional; used for compression/uncompression
1594 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1595 AC_CHECK_LIB(z, compress2)
1598 dnl Allow extra x86-disassembler library
1600 AS_HELP_STRING([--with-udis86=<path>],
1601 [Use udis86 external x86 disassembler library]),
1603 AC_SUBST(USE_UDIS86, [1])
1606 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1608 AC_CHECK_LIB(udis86, ud_init, [], [
1609 echo "Error! You need to have libudis86 around."
1613 AC_SUBST(USE_UDIS86, [0]))
1614 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1615 [Define if use udis86 library])
1617 dnl Allow OProfile support for JIT output.
1618 AC_ARG_WITH(oprofile,
1619 AS_HELP_STRING([--with-oprofile=<prefix>],
1620 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1622 AC_SUBST(USE_OPROFILE, [1])
1624 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1626 AC_SUBST(USE_OPROFILE, [0]) ;;
1627 *) llvm_cv_oppath="${withval}/lib/oprofile"
1628 CPPFLAGS="-I${withval}/include";;
1630 case $llvm_cv_os_type in
1632 if test -n "$llvm_cv_oppath" ; then
1633 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1634 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1635 dnl libbfd is not included properly in libopagent in some Debian
1636 dnl versions. If libbfd isn't found at all, we assume opagent works
1638 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1639 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1640 echo "Error! You need to have libopagent around."
1643 AC_CHECK_HEADER([opagent.h], [], [
1644 echo "Error! You need to have opagent.h around."
1649 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1653 AC_SUBST(USE_OPROFILE, [0])
1655 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1656 [Define if we have the oprofile JIT-support library])
1658 dnl Enable support for Intel JIT Events API.
1659 AC_ARG_WITH(intel-jitevents,
1660 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1663 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1664 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1665 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1668 case $llvm_cv_os_type in
1669 Linux|Win32|Cygwin|MingW) ;;
1670 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1673 case "$llvm_cv_target_arch" in
1675 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1679 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1681 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1682 [Define if we have the Intel JIT API runtime support library])
1684 dnl Check for libxml2
1685 dnl Right now we're just checking for the existence, we could also check for a
1686 dnl particular version via --version on xml2-config
1687 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1689 AC_MSG_CHECKING(for libxml2 includes)
1690 if test "x$XML2CONFIG" = "x"; then
1691 AC_MSG_RESULT(xml2-config not found)
1693 LIBXML2_INC=`$XML2CONFIG --cflags`
1694 AC_MSG_RESULT($LIBXML2_INC)
1695 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1696 LIBXML2_LIBS="-lxml2"])
1698 AC_SUBST(LIBXML2_LIBS)
1699 AC_SUBST(LIBXML2_INC)
1701 dnl===-----------------------------------------------------------------------===
1703 dnl=== SECTION 6: Check for header files
1705 dnl===-----------------------------------------------------------------------===
1707 dnl First, use autoconf provided macros for specific headers that we need
1708 dnl We don't check for ancient stuff or things that are guaranteed to be there
1709 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1710 dnl Generally we're looking for POSIX headers.
1712 AC_HEADER_MMAP_ANONYMOUS
1718 AC_CHECK_HEADERS([cxxabi.h])
1720 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1721 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1722 AC_CHECK_HEADERS([utime.h])
1723 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1724 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1725 AC_CHECK_HEADERS([valgrind/valgrind.h])
1726 AC_CHECK_HEADERS([fenv.h])
1727 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1728 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1729 AC_CHECK_HEADERS(pthread.h,
1730 AC_SUBST(HAVE_PTHREAD, 1),
1731 AC_SUBST(HAVE_PTHREAD, 0))
1733 AC_SUBST(HAVE_PTHREAD, 0)
1735 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1736 AC_CHECK_HEADERS(zlib.h,
1737 AC_SUBST(HAVE_LIBZ, 1),
1738 AC_SUBST(HAVE_LIBZ, 0))
1740 AC_SUBST(HAVE_LIBZ, 0)
1743 dnl Try to find ffi.h.
1744 if test "$llvm_cv_enable_libffi" = "yes" ; then
1745 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1748 dnl Try to find Darwin specific crash reporting libraries.
1749 AC_CHECK_HEADERS([CrashReporterClient.h])
1751 dnl Try to find Darwin specific crash reporting global.
1752 AC_MSG_CHECKING([__crashreporter_info__])
1756 extern const char *__crashreporter_info__;
1758 __crashreporter_info__ = "test";
1764 AC_MSG_RESULT([yes])
1765 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1769 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1772 dnl===-----------------------------------------------------------------------===
1774 dnl=== SECTION 7: Check for types and structures
1776 dnl===-----------------------------------------------------------------------===
1781 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1783 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1784 AC_CHECK_TYPES([uint64_t],,
1785 AC_CHECK_TYPES([u_int64_t],,
1786 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1788 dnl===-----------------------------------------------------------------------===
1790 dnl=== SECTION 8: Check for specific functions needed
1792 dnl===-----------------------------------------------------------------------===
1794 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1795 AC_CHECK_FUNCS([powf fmodf strtof round ])
1796 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1797 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1798 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1799 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1800 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1801 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1802 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1803 AC_CHECK_FUNCS([futimes futimens])
1807 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1808 AC_CHECK_DECLS([arc4random])
1810 dnl Check the declaration "Secure API" on Windows environments.
1811 AC_CHECK_DECLS([strerror_s])
1813 dnl Check symbols in libgcc.a for JIT on Mingw.
1814 if test "$llvm_cv_os_type" = "MingW" ; then
1815 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1816 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1817 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1818 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1820 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1821 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1822 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1823 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1824 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1825 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1826 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1827 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1828 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1829 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1831 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1832 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1835 dnl Check Win32 API EnumerateLoadedModules.
1836 if test "$llvm_cv_os_type" = "MingW" ; then
1837 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1841 #include <windows.h>
1842 #include <imagehlp.h>
1843 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1844 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1848 AC_MSG_RESULT([yes])
1849 llvm_cv_win32_elmcb_pcstr="PCSTR"
1853 llvm_cv_win32_elmcb_pcstr="PSTR"
1855 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1858 dnl Check for variations in the Standard C++ library and STL. These macros are
1859 dnl provided by LLVM in the autoconf/m4 directory.
1863 dnl Check for mmap support.We also need to know if /dev/zero is required to
1864 dnl be opened for allocating RWX memory.
1865 dnl Make sure we aren't attempting to configure for an unknown system
1866 if test "$llvm_cv_platform_type" = "Unix" ; then
1869 AC_NEED_DEV_ZERO_FOR_MMAP
1871 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1873 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1875 if test "$ac_cv_func_mmap_file" = "no"
1877 AC_MSG_WARN([mmap() of files required but not found])
1881 dnl atomic builtins are required for threading support.
1882 AC_MSG_CHECKING(for GCC atomic builtins)
1883 dnl Since we'll be using these atomic builtins in C++ files we should test
1884 dnl the C++ compiler.
1890 volatile unsigned long val = 1;
1891 __sync_synchronize();
1892 __sync_val_compare_and_swap(&val, 1, 0);
1893 __sync_add_and_fetch(&val, 1);
1894 __sync_sub_and_fetch(&val, 1);
1900 AC_MSG_RESULT([yes])
1901 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1905 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1906 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1910 dnl===-----------------------------------------------------------------------===
1912 dnl=== SECTION 9: Additional checks, variables, etc.
1914 dnl===-----------------------------------------------------------------------===
1916 dnl Handle 32-bit linux systems running a 64-bit kernel.
1917 dnl This has to come after section 4 because it invokes the compiler.
1918 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1920 if test "$llvm_cv_linux_mixed" = "yes"; then
1921 llvm_cv_target_arch="x86"
1926 dnl Check whether __dso_handle is present
1927 AC_CHECK_FUNCS([__dso_handle])
1929 dnl Propagate the shared library extension that the libltdl checks did to
1930 dnl the Makefiles so we can use it there too
1931 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
1933 dnl Translate the various configuration directories and other basic
1934 dnl information into substitutions that will end up in Makefile.config.in
1935 dnl that these configured values can be used by the makefiles
1936 if test "${prefix}" = "NONE" ; then
1939 eval LLVM_PREFIX="${prefix}";
1940 eval LLVM_BINDIR="${prefix}/bin";
1941 eval LLVM_DATADIR="${prefix}/share/llvm";
1942 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1943 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1944 eval LLVM_INCLUDEDIR="${prefix}/include";
1945 eval LLVM_INFODIR="${prefix}/info";
1946 eval LLVM_MANDIR="${prefix}/man";
1947 LLVM_CONFIGTIME=`date`
1948 AC_SUBST(LLVM_PREFIX)
1949 AC_SUBST(LLVM_BINDIR)
1950 AC_SUBST(LLVM_DATADIR)
1951 AC_SUBST(LLVM_DOCSDIR)
1952 AC_SUBST(LLVM_ETCDIR)
1953 AC_SUBST(LLVM_INCLUDEDIR)
1954 AC_SUBST(LLVM_INFODIR)
1955 AC_SUBST(LLVM_MANDIR)
1956 AC_SUBST(LLVM_CONFIGTIME)
1958 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1959 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1960 LLVM_CONFIGTIME="(timestamp not enabled)"
1963 dnl Place the various directories into the config.h file as #defines so that we
1964 dnl can know about the installation paths within LLVM.
1965 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1966 [Installation prefix directory])
1967 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1968 [Installation directory for binary executables])
1969 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1970 [Installation directory for data files])
1971 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1972 [Installation directory for documentation])
1973 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1974 [Installation directory for config files])
1975 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1976 [Installation directory for include files])
1977 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1978 [Installation directory for .info files])
1979 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1980 [Installation directory for man pages])
1981 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1982 [Time at which LLVM was configured])
1983 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1984 [Host triple LLVM will be executed on])
1985 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1986 [Target triple LLVM will generate code for by default])
1988 dnl Determine which bindings to build.
1989 if test "$BINDINGS_TO_BUILD" = auto ; then
1990 BINDINGS_TO_BUILD=""
1991 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1992 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1995 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1997 dnl This isn't really configurey, but it avoids having to repeat the list in
1999 AC_SUBST(ALL_BINDINGS,ocaml)
2001 dnl Do any work necessary to ensure that bindings have what they need.
2002 binding_prereqs_failed=0
2003 for a_binding in $BINDINGS_TO_BUILD ; do
2004 case "$a_binding" in
2006 if test "x$OCAMLC" = x ; then
2007 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
2008 binding_prereqs_failed=1
2010 if test "x$OCAMLDEP" = x ; then
2011 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
2012 binding_prereqs_failed=1
2014 if test "x$OCAMLOPT" = x ; then
2015 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
2016 dnl ocamlopt is optional!
2018 if test "x$with_ocaml_libdir" != xauto ; then
2019 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
2021 ocaml_stdlib="`"$OCAMLC" -where`"
2022 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
2024 # ocaml stdlib is beneath our prefix; use stdlib
2025 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
2027 # ocaml stdlib is outside our prefix; use libdir/ocaml
2028 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
2034 if test "$binding_prereqs_failed" = 1 ; then
2035 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
2038 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
2039 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
2041 dnl Determine linker rpath flag
2042 if test "$llvm_cv_link_use_r" = "yes" ; then
2049 dnl Determine linker rdynamic flag
2050 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
2051 RDYNAMIC="-rdynamic"
2057 dnl===-----------------------------------------------------------------------===
2059 dnl=== SECTION 10: Specify the output files and generate it
2061 dnl===-----------------------------------------------------------------------===
2063 dnl Configure header files
2064 dnl WARNING: dnl If you add or remove any of the following config headers, then
2065 dnl you MUST also update Makefile so that the variable FilesToConfig
2066 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2067 dnl files can be updated automatically when their *.in sources change.
2068 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2069 AH_TOP([#ifndef CONFIG_H
2073 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2074 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2075 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2076 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2077 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2079 dnl Configure the makefile's configuration data
2080 AC_CONFIG_FILES([Makefile.config])
2082 dnl Configure the RPM spec file for LLVM
2083 AC_CONFIG_FILES([llvm.spec])
2085 dnl Configure doxygen's configuration file
2086 AC_CONFIG_FILES([docs/doxygen.cfg])
2088 dnl Configure clang, if present
2089 if test "${clang_src_root}" = ""; then
2090 clang_src_root="$srcdir/tools/clang"
2092 if test -f ${clang_src_root}/README.txt; then
2093 dnl Use variables to stay under 80 columns.
2094 configh="include/clang/Config/config.h"
2095 doxy="docs/doxygen.cfg"
2096 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2097 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2100 dnl OCaml findlib META file
2101 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2103 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2104 test "x$program_prefix" = "xNONE" && program_prefix=""
2105 AC_SUBST([program_prefix])
2108 dnl Do special configuration of Makefiles
2109 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2110 AC_CONFIG_MAKEFILE(Makefile)
2111 AC_CONFIG_MAKEFILE(Makefile.common)
2112 AC_CONFIG_MAKEFILE(examples/Makefile)
2113 AC_CONFIG_MAKEFILE(lib/Makefile)
2114 AC_CONFIG_MAKEFILE(test/Makefile)
2115 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2116 AC_CONFIG_MAKEFILE(unittests/Makefile)
2117 AC_CONFIG_MAKEFILE(tools/Makefile)
2118 AC_CONFIG_MAKEFILE(utils/Makefile)
2119 AC_CONFIG_MAKEFILE(projects/Makefile)
2120 AC_CONFIG_MAKEFILE(bindings/Makefile)
2121 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2123 dnl Finally, crank out the output