1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file was developed by the LLVM research group and is distributed under
5 dnl the University of Illinois Open Source 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 email address for reporting bugs.
34 AC_INIT([[llvm]],[[1.8cvs]],[llvmbugs@cs.uiuc.edu])
36 dnl Provide a copyright substitution and ensure the copyright notice is included
37 dnl in the output of --version option of the generated configure script.
38 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2005 University of Illinois at Urbana-Champaign."])
39 AC_COPYRIGHT([Copyright (c) 2003-2005 University of Illinois at Urbana-Champaign.])
41 dnl Indicate that we require autoconf 2.59 or later. Ths is needed because we
42 dnl use some autoconf macros only available in 2.59.
45 dnl Verify that the source directory is valid. This makes sure that we are
46 dnl configuring LLVM and not some other package (it validates --srcdir argument)
47 AC_CONFIG_SRCDIR([lib/VMCore/Module.cpp])
49 dnl Place all of the extra autoconf files into the config subdirectory. Tell
50 dnl various tools where the m4 autoconf macros are.
51 AC_CONFIG_AUX_DIR([autoconf])
53 dnl Quit if the source directory has already been configured.
54 dnl NOTE: This relies upon undocumented autoconf behavior.
55 if test ${srcdir} != "." ; then
56 if test -f ${srcdir}/include/llvm/Config/config.h ; then
57 AC_MSG_ERROR([Already configured in ${srcdir}])
61 dnl Configure all of the projects present in our source tree. While we could
62 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
63 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
64 dnl Instead we match on the known projects.
65 for i in `ls ${srcdir}/projects`
67 if test -d ${srcdir}/projects/${i} ; then
70 "sample") AC_CONFIG_SUBDIRS([projects/sample]) ;;
71 "Stacker") AC_CONFIG_SUBDIRS([projects/Stacker]) ;;
72 "privbracket") AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
73 "llvm-test") AC_CONFIG_SUBDIRS([projects/llvm-test]) ;;
74 "llvm-reopt") AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
75 "llvm-gcc") AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;;
76 "llvm-java") AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
77 "llvm-tv") AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
78 "llvm-poolalloc") AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;;
79 "llvm-kernel") AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
81 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
87 dnl===-----------------------------------------------------------------------===
89 dnl=== SECTION 2: Architecture, target, and host checks
91 dnl===-----------------------------------------------------------------------===
93 dnl Check the target for which we're compiling and the host that will do the
94 dnl compilations. This will tell us which LLVM compiler will be used for
95 dnl compiling SSA into object code. This needs to be done early because
96 dnl following tests depend on it.
99 dnl Determine the platform type and cache its value. This helps us configure
100 dnl the System library to the correct build platform.
101 AC_CACHE_CHECK([type of operating system we're on],
105 llvm_cv_os_type="AIX"
106 llvm_cv_platform_type="Unix" ;;
108 llvm_cv_os_type="Cygwin"
109 llvm_cv_platform_type="Unix" ;;
111 llvm_cv_os_type="Darwin"
112 llvm_cv_platform_type="Unix" ;;
114 llvm_cv_os_type="FreeBSD"
115 llvm_cv_platform_type="Unix" ;;
117 llvm_cv_os_type="OpenBSD"
118 llvm_cv_platform_type="Unix" ;;
120 llvm_cv_os_type="HP-UX"
121 llvm_cv_platform_type="Unix" ;;
123 llvm_cv_os_type="Interix"
124 llvm_cv_platform_type="Unix" ;;
126 llvm_cv_os_type="Linux"
127 llvm_cv_platform_type="Unix" ;;
129 llvm_cv_os_type="SunOS"
130 llvm_cv_platform_type="Unix" ;;
132 llvm_cv_os_type="Win32"
133 llvm_cv_platform_type="Win32" ;;
135 llvm_cv_os_type="MingW"
136 llvm_cv_platform_type="Win32" ;;
138 llvm_cv_os_type="Unknown"
139 llvm_cv_platform_type="Unknown" ;;
142 dnl Make sure we aren't attempting to configure for an unknown system
143 if test "$llvm_cv_os_type" = "Unknown" ; then
144 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
147 dnl Set the "OS" Makefile variable based on the platform type so the
148 dnl makefile can configure itself to specific build hosts
149 AC_SUBST(OS,$llvm_cv_os_type)
151 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
152 dnl This is used by lib/System to determine the basic kind of implementation
154 case $llvm_cv_platform_type in
156 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
157 AC_SUBST(LLVM_ON_UNIX,[1])
158 AC_SUBST(LLVM_ON_WIN32,[0])
161 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
162 AC_SUBST(LLVM_ON_UNIX,[0])
163 AC_SUBST(LLVM_ON_WIN32,[1])
167 dnl Determine what our target architecture is and configure accordingly.
168 dnl This will allow Makefiles to make a distinction between the hardware and
170 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
172 i?86-*) llvm_cv_target_arch="x86" ;;
173 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
174 sparc*-*) llvm_cv_target_arch="Sparc" ;;
175 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
176 alpha*-*) llvm_cv_target_arch="Alpha" ;;
177 ia64-*) llvm_cv_target_arch="IA64" ;;
178 *) llvm_cv_target_arch="Unknown" ;;
181 if test "$llvm_cv_target_arch" = "Unknown" ; then
182 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
185 dnl Define a substitution, ARCH, for the target architecture
186 AC_SUBST(ARCH,$llvm_cv_target_arch)
188 dnl Check for the endianness of the target
189 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
191 dnl Check to see if there's a "CVS" directory indicating that this build is
192 dnl being done from a CVS checkout. This sets up several defaults for the
193 dnl command line switches. When we build with a CVS directory, we get a
194 dnl debug with assertions turned on. Without, we assume a source release and we
195 dnl get an optimized build without assertions. See --enable-optimized and
196 dnl --enable-assertions below
197 if test -d "CVS" -o -d "${srcdir}/CVS"; then
200 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
206 dnl===-----------------------------------------------------------------------===
208 dnl=== SECTION 3: Command line arguments for the configure script.
210 dnl===-----------------------------------------------------------------------===
212 dnl --enable-optimized : check whether they want to do an optimized build:
213 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
214 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
215 if test ${enableval} = "no" ; then
216 AC_SUBST(ENABLE_OPTIMIZED,[[]])
218 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
221 dnl --enable-assertions : check whether they want to turn on assertions or not:
222 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
223 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
224 if test ${enableval} = "yes" ; then
225 AC_SUBST(DISABLE_ASSERTIONS,[[]])
227 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
230 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
231 AC_ARG_ENABLE(debug-runtime,
232 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
233 if test ${enableval} = "no" ; then
234 AC_SUBST(DEBUG_RUNTIME,[[]])
236 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
239 dnl --enable-jit: check whether they want to enable the jit
241 AS_HELP_STRING(--enable-jit,
242 [Enable Just In Time Compiling (default is YES)]),,
244 if test ${enableval} = "no"
248 case "$llvm_cv_target_arch" in
249 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
250 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
251 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
252 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
253 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
254 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
255 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
259 dnl Allow enablement of doxygen generated documentation
260 AC_ARG_ENABLE(doxygen,
261 AS_HELP_STRING([--enable-doxygen],
262 [Build doxygen documentation (default is NO)]),,
265 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
266 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
267 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
268 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
271 dnl Allow disablement of threads
272 AC_ARG_ENABLE(threads,
273 AS_HELP_STRING([--enable-threads],
274 [Use threads if available (default is YES)]),,
277 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
278 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
279 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
281 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
283 dnl Allow specific targets to be specified for building (or not)
285 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-target],
286 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
289 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
291 case "$llvm_cv_target_arch" in
292 x86) TARGETS_TO_BUILD="X86" ;;
293 x86_64) TARGETS_TO_BUILD="X86" ;;
294 Sparc) TARGETS_TO_BUILD="Sparc" ;;
295 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
296 Alpha) TARGETS_TO_BUILD="Alpha" ;;
297 IA64) TARGETS_TO_BUILD="IA64" ;;
298 *) AC_MSG_ERROR([Can not set target to build]) ;;
301 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
303 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
304 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
305 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
306 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
307 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
308 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
309 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
314 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
315 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
317 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
318 AC_ARG_WITH(llvmgccdir,
319 AS_HELP_STRING([--with-llvmgccdir],
320 [Specify location of llvm-gcc install dir (default searches PATH)]),,
323 default) WITH_LLVMGCCDIR=default ;;
324 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
325 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
329 dnl===-----------------------------------------------------------------------===
331 dnl=== SECTION 4: Check for programs we need and that they are the right version
333 dnl===-----------------------------------------------------------------------===
335 dnl Check for compilation tools
342 dnl Check for the tools that the makefiles require
345 AC_PATH_PROG(CMP, [cmp], [cmp])
346 AC_PATH_PROG(CP, [cp], [cp])
347 AC_PATH_PROG(DATE, [date], [date])
348 AC_PATH_PROG(FIND, [find], [find])
349 AC_PATH_PROG(GREP, [grep], [grep])
350 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
351 AC_PATH_PROG(MV, [mv], [mv])
353 AC_PATH_PROG(RM, [rm], [rm])
354 AC_PATH_PROG(SED, [sed], [sed])
355 AC_PATH_PROG(TAR, [tar], [gtar])
357 dnl Looking for misc. graph plotting software
358 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
359 if test "$GRAPHVIZ" != "echo Graphviz" ; then
360 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
361 dnl If we're targeting for mingw we should emit windows paths, not msys
362 if test "$llvm_cv_os_type" == "MingW" ; then
363 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
365 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
366 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
368 AC_PATH_PROG(DOT, [dot], [echo dot])
369 if test "$DOT" != "echo dot" ; then
370 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
371 dnl If we're targeting for mingw we should emit windows paths, not msys
372 if test "$llvm_cv_os_type" == "MingW" ; then
373 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
375 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
376 [Define to path to dot program if found or 'echo dot' otherwise])
378 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
379 if test "$GV" != "echo gv" ; then
380 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
381 dnl If we're targeting for mingw we should emit windows paths, not msys
382 if test "$llvm_cv_os_type" == "MingW" ; then
383 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
385 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
386 [Define to path to gv program if found or 'echo gv' otherwise])
388 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
389 if test "$DOTTY" != "echo dotty" ; then
390 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
391 dnl If we're targeting for mingw we should emit windows paths, not msys
392 if test "$llvm_cv_os_type" == "MingW" ; then
393 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
395 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
396 [Define to path to dotty program if found or 'echo dotty' otherwise])
399 dnl Look for a sufficiently recent version of Perl.
400 LLVM_PROG_PERL([5.006])
402 if test x"$PERL" = xnone; then
403 AC_SUBST(HAVE_PERL,0)
405 AC_SUBST(HAVE_PERL,1)
408 dnl Find the install program
411 dnl Checks for documentation and testing tools that we can do without. If these
412 dnl are not found then they are set to "true" which always succeeds but does
413 dnl nothing. This just lets the build output show that we could have done
414 dnl something if the tool was available.
415 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
416 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
417 AC_PATH_PROG(ETAGS,[etags],[echo "Skipped: etags not found"])
418 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
419 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
420 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
421 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
422 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
424 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
426 dnl Determine if the linker supports the -R option.
429 dnl Check for libtool and the library that has dlopen function (which must come
430 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
436 if test "$lt_cv_dlopen_self" = "yes" ; then
437 AC_DEFINE([CAN_DLOPEN_SELF],[1],
438 [Define if dlopen(0) will open the symbols of the program])
441 dnl Check if we know how to tell etags we are using C++:
442 etags_version=`$ETAGS --version 2>&1`
443 case "$etags_version" in
444 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
445 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
448 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
450 if test "$WITH_LLVMGCCDIR" = "default" ; then
451 LLVMGCC="llvm-gcc${EXEEXT}"
452 LLVMGXX="llvm-g++${EXEEXT}"
453 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
454 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
456 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
457 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
458 AC_SUBST(LLVMGCC,$LLVMGCC)
459 AC_SUBST(LLVMGXX,$LLVMGXX)
462 AC_MSG_CHECKING([tool compatibility])
464 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
465 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
466 dnl to support those options.
467 dnl "icc" emits gcc signatures
468 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
480 if test "$GCC" != "yes" && test "$ICC" != "yes"
482 AC_MSG_ERROR([gcc|icc required but not found])
485 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
486 if test "$GXX" != "yes" && test "$IXX" != "yes"
488 AC_MSG_ERROR([g++|icc required but not found])
491 dnl Verify that GCC is version 3.0 or higher
492 if test "$GCC" = "yes"
494 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
495 if test "$gccmajor" -lt "3"
497 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
501 dnl Check for GNU Make. We use its extensions, so don't build without it
502 if test -z "$llvm_cv_gnu_make_command"
504 AC_MSG_ERROR([GNU Make required but not found])
507 dnl Tool compatibility is okay if we make it here.
510 dnl===-----------------------------------------------------------------------===
512 dnl=== SECTION 5: Check for libraries
514 dnl===-----------------------------------------------------------------------===
516 dnl libelf is for sparc only; we can ignore it if we don't have it
517 AC_CHECK_LIB(elf, elf_begin)
519 if test "$llvm_cv_os_type" == "MingW" ; then
520 AC_CHECK_LIB(imagehlp, main)
521 AC_CHECK_LIB(psapi, main)
524 dnl lt_dlopen may be required for plugin support.
525 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
526 [Define if lt_dlopen() is available on this platform]),
527 AC_MSG_WARN([lt_dlopen() not found - plugin support might
530 dnl dlopen() is required for plugin support.
531 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
532 [Define if dlopen() is available on this platform.]),
533 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
535 dnl mallinfo is optional; the code can compile (minus features) without it
536 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
537 [Define if mallinfo() is available on this platform.]))
539 dnl pthread locking functions are optional - but llvm will not be thread-safe
541 if test "$ENABLE_THREADS" -eq 1 ; then
542 AC_CHECK_LIB(pthread,pthread_mutex_init)
543 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
544 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
545 [Have pthread_mutex_lock]))
548 dnl===-----------------------------------------------------------------------===
550 dnl=== SECTION 6: Check for header files
552 dnl===-----------------------------------------------------------------------===
554 dnl First, use autoconf provided macros for specific headers that we need
555 dnl We don't check for ancient stuff or things that are guaranteed to be there
556 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
557 dnl Generally we're looking for POSIX headers.
559 AC_HEADER_MMAP_ANONYMOUS
565 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
566 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
567 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
568 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h])
569 if test "$ENABLE_THREADS" -eq 1 ; then
570 AC_CHECK_HEADERS(pthread.h)
573 dnl===-----------------------------------------------------------------------===
575 dnl=== SECTION 7: Check for types and structures
577 dnl===-----------------------------------------------------------------------===
583 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
584 AC_CHECK_TYPES([uint64_t],,
585 AC_CHECK_TYPES([u_int64_t],,
586 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
588 dnl===-----------------------------------------------------------------------===
590 dnl=== SECTION 8: Check for specific functions needed
592 dnl===-----------------------------------------------------------------------===
594 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
595 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
596 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
597 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
598 AC_CHECK_FUNCS([_setjmp _longjmp setjmp longjmp sigsetjmp siglongjmp])
603 dnl Check for variations in the Standard C++ library and STL. These macros are
604 dnl provided by LLVM in the autoconf/m4 directory.
607 AC_CXX_HAVE_STD_ITERATOR
608 AC_CXX_HAVE_BI_ITERATOR
609 AC_CXX_HAVE_FWD_ITERATOR
613 dnl Check for mmap and mprotect support. We need both to do the JIT and for
614 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
615 dnl be opened for allocating RWX memory.
618 AC_NEED_DEV_ZERO_FOR_MMAP
619 AC_CHECK_FUNC(mprotect,,
620 AC_MSG_ERROR([Function mprotect() required but not found]))
622 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
624 AC_MSG_WARN([mmap() of a fixed address required but not supported])
626 if test "$ac_cv_func_mmap_file" = "no"
628 AC_MSG_WARN([mmap() of files required but not found])
631 dnl===-----------------------------------------------------------------------===
633 dnl=== SECTION 9: Additional checks, variables, etc.
635 dnl===-----------------------------------------------------------------------===
637 dnl See if the llvm-gcc executable can compile to LLVM assembly
638 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
639 [llvm_cv_llvmgcc_sanity="no"
640 if test -x "$LLVMGCC" ; then
641 cp /dev/null conftest.c
642 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
643 if test $? -eq 0 ; then
644 llvm_cv_llvmgcc_sanity="yes"
649 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
650 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
651 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
652 AC_SUBST(LLVMCC1,$llvmcc1path)
653 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
654 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
655 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
656 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
657 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
658 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
659 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
660 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
663 dnl Propagate the shared library extension that the libltdl checks did to
664 dnl the Makefiles so we can use it there too
665 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
667 # Translate the various configuration directories and other basic
668 # information into substitutions that will end up in Makefile.config.in
669 # that these configured values can be used by the makefiles
670 if test "${prefix}" == "NONE" ; then
673 eval LLVM_PREFIX="${prefix}";
674 eval LLVM_BINDIR="${prefix}/bin";
675 eval LLVM_LIBDIR="${prefix}/lib";
676 eval LLVM_DATADIR="${prefix}/share/llvm";
677 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
678 eval LLVM_ETCDIR="${prefix}/etc/llvm";
679 eval LLVM_INCLUDEDIR="${prefix}/include";
680 eval LLVM_INFODIR="${prefix}/info";
681 eval LLVM_MANDIR="${prefix}/man";
682 LLVM_CONFIGTIME=`date`
683 AC_SUBST(LLVM_PREFIX)
684 AC_SUBST(LLVM_BINDIR)
685 AC_SUBST(LLVM_LIBDIR)
686 AC_SUBST(LLVM_DATADIR)
687 AC_SUBST(LLVM_DOCSDIR)
688 AC_SUBST(LLVM_ETCDIR)
689 AC_SUBST(LLVM_INCLUDEDIR)
690 AC_SUBST(LLVM_INFODIR)
691 AC_SUBST(LLVM_MANDIR)
692 AC_SUBST(LLVM_CONFIGTIME)
694 # Place the various directores into the config.h file as #defines so that we
695 # can know about the installation paths within LLVM.
696 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
697 [Installation prefix directory])
698 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
699 [Installation directory for binary executables])
700 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
701 [Installation directory for libraries])
702 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
703 [Installation directory for data files])
704 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
705 [Installation directory for documentation])
706 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
707 [Installation directory for config files])
708 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
709 [Installation directory for include files])
710 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
711 [Installation directory for .info files])
712 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
713 [Installation directory for man pages])
714 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
715 [Time at which LLVM was configured])
717 dnl===-----------------------------------------------------------------------===
719 dnl=== SECTION 10: Specify the output files and generate it
721 dnl===-----------------------------------------------------------------------===
723 dnl Configure header files
724 dnl WARNING: dnl If you add or remove any of the following config headers, then
725 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
726 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
727 dnl files can be updated automatically when their *.in sources change.
728 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
729 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
730 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
731 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
732 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
734 dnl Configure the makefile's configuration data
735 AC_CONFIG_FILES([Makefile.config])
737 dnl Configure doxygen's configuration file
738 AC_CONFIG_FILES([docs/doxygen.cfg])
740 dnl Do the first stage of configuration for llvm-config.in.
741 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
743 dnl Do special configuration of Makefiles
744 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
745 AC_CONFIG_MAKEFILE(Makefile)
746 AC_CONFIG_MAKEFILE(Makefile.common)
747 AC_CONFIG_MAKEFILE(examples/Makefile)
748 AC_CONFIG_MAKEFILE(lib/Makefile)
749 AC_CONFIG_MAKEFILE(runtime/Makefile)
750 AC_CONFIG_MAKEFILE(test/Makefile)
751 AC_CONFIG_MAKEFILE(test/Makefile.tests)
752 AC_CONFIG_MAKEFILE(tools/Makefile)
753 AC_CONFIG_MAKEFILE(utils/Makefile)
754 AC_CONFIG_MAKEFILE(projects/Makefile)
756 dnl Finally, crank out the output
759 dnl Warn loudly if llvm-gcc was not obviously working
760 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
761 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
762 AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in])
763 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
764 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
765 AC_MSG_WARN([***** build the llvm tools.])