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]],[[1.9cvs]],[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 (${i}) won't be configured automatically])
87 dnl===-----------------------------------------------------------------------===
89 dnl=== SECTION 2: Architecture, target, and host checks
91 dnl===-----------------------------------------------------------------------===
93 dnl Check the target for which we're compiling and the host that will do the
94 dnl compilations. This will tell us which LLVM compiler will be used for
95 dnl compiling SSA into object code. This needs to be done early because
96 dnl following tests depend on it.
99 dnl Determine the platform type and cache its value. This helps us configure
100 dnl the System library to the correct build platform.
101 AC_CACHE_CHECK([type of operating system we're going to host on],
105 llvm_cv_os_type="AIX"
106 llvm_cv_platform_type="Unix" ;;
108 llvm_cv_os_type="Cygwin"
109 llvm_cv_platform_type="Unix" ;;
111 llvm_cv_os_type="Darwin"
112 llvm_cv_platform_type="Unix" ;;
114 llvm_cv_os_type="FreeBSD"
115 llvm_cv_platform_type="Unix" ;;
117 llvm_cv_os_type="OpenBSD"
118 llvm_cv_platform_type="Unix" ;;
120 llvm_cv_os_type="HP-UX"
121 llvm_cv_platform_type="Unix" ;;
123 llvm_cv_os_type="Interix"
124 llvm_cv_platform_type="Unix" ;;
126 llvm_cv_os_type="Linux"
127 llvm_cv_platform_type="Unix" ;;
129 llvm_cv_os_type="SunOS"
130 llvm_cv_platform_type="Unix" ;;
132 llvm_cv_os_type="Win32"
133 llvm_cv_platform_type="Win32" ;;
135 llvm_cv_os_type="MingW"
136 llvm_cv_platform_type="Win32" ;;
138 llvm_cv_os_type="Unknown"
139 llvm_cv_platform_type="Unknown" ;;
142 dnl Make sure we aren't attempting to configure for an unknown system
143 if test "$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,$llvm_cv_target_arch)
188 dnl Check for the endianness of the target
189 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
191 dnl Check for build platform executable suffix if we're crosscompiling
192 if test "$cross_compiling" = yes; then
193 AC_SUBST(LLVM_CROSS_COMPILING, [1])
196 AC_SUBST(LLVM_CROSS_COMPILING, [0])
199 dnl Check to see if there's a "CVS" directory indicating that this build is
200 dnl being done from a CVS checkout. This sets up several defaults for the
201 dnl command line switches. When we build with a CVS directory, we get a
202 dnl debug with assertions turned on. Without, we assume a source release and we
203 dnl get an optimized build without assertions. See --enable-optimized and
204 dnl --enable-assertions below
205 if test -d "CVS" -o -d "${srcdir}/CVS"; then
208 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
214 dnl===-----------------------------------------------------------------------===
216 dnl=== SECTION 3: Command line arguments for the configure script.
218 dnl===-----------------------------------------------------------------------===
220 dnl --enable-optimized : check whether they want to do an optimized build:
221 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
222 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
223 if test ${enableval} = "no" ; then
224 AC_SUBST(ENABLE_OPTIMIZED,[[]])
226 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
229 dnl --enable-assertions : check whether they want to turn on assertions or not:
230 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
231 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
232 if test ${enableval} = "yes" ; then
233 AC_SUBST(DISABLE_ASSERTIONS,[[]])
235 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
238 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
239 AC_ARG_ENABLE(debug-runtime,
240 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
241 if test ${enableval} = "no" ; then
242 AC_SUBST(DEBUG_RUNTIME,[[]])
244 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
247 dnl --enable-jit: check whether they want to enable the jit
249 AS_HELP_STRING(--enable-jit,
250 [Enable Just In Time Compiling (default is YES)]),,
252 if test ${enableval} = "no"
256 case "$llvm_cv_target_arch" in
257 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
258 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
259 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
260 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
261 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
262 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
263 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
267 dnl Allow enablement of doxygen generated documentation
268 AC_ARG_ENABLE(doxygen,
269 AS_HELP_STRING([--enable-doxygen],
270 [Build doxygen documentation (default is NO)]),,
273 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
274 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
275 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
276 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
279 dnl Allow disablement of threads
280 AC_ARG_ENABLE(threads,
281 AS_HELP_STRING([--enable-threads],
282 [Use threads if available (default is YES)]),,
285 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
286 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
287 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
289 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
291 dnl Allow specific targets to be specified for building (or not)
293 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
294 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
297 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
299 case "$llvm_cv_target_arch" in
300 x86) TARGETS_TO_BUILD="X86" ;;
301 x86_64) TARGETS_TO_BUILD="X86" ;;
302 Sparc) TARGETS_TO_BUILD="Sparc" ;;
303 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
304 Alpha) TARGETS_TO_BUILD="Alpha" ;;
305 IA64) TARGETS_TO_BUILD="IA64" ;;
306 *) AC_MSG_ERROR([Can not set target to build]) ;;
309 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
311 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
312 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
313 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
314 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
315 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
316 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
317 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
322 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
323 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
325 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
326 AC_ARG_WITH(llvmgccdir,
327 AS_HELP_STRING([--with-llvmgccdir],
328 [Specify location of llvm-gcc install dir (default searches PATH)]),,
331 default) WITH_LLVMGCCDIR=default ;;
332 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
333 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
336 dnl Specify extra build options
337 AC_ARG_WITH(extra-options,
338 AS_HELP_STRING([--with-extra-options],
339 [Specify addtional options to compile LLVM with]),,
342 default) EXTRA_OPTIONS= ;;
343 *) EXTRA_OPTIONS=$extraopts ;;
345 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
347 dnl===-----------------------------------------------------------------------===
349 dnl=== SECTION 4: Check for programs we need and that they are the right version
351 dnl===-----------------------------------------------------------------------===
353 dnl Check for compilation tools
360 dnl Check for the tools that the makefiles require
363 AC_PATH_PROG(CMP, [cmp], [cmp])
364 AC_PATH_PROG(CP, [cp], [cp])
365 AC_PATH_PROG(DATE, [date], [date])
366 AC_PATH_PROG(FIND, [find], [find])
367 AC_PATH_PROG(GREP, [grep], [grep])
368 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
369 AC_PATH_PROG(MV, [mv], [mv])
371 AC_PATH_PROG(RM, [rm], [rm])
372 AC_PATH_PROG(SED, [sed], [sed])
373 AC_PATH_PROG(TAR, [tar], [gtar])
375 dnl Looking for misc. graph plotting software
376 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
377 if test "$GRAPHVIZ" != "echo Graphviz" ; then
378 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
379 dnl If we're targeting for mingw we should emit windows paths, not msys
380 if test "$llvm_cv_os_type" == "MingW" ; then
381 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
383 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
384 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
386 AC_PATH_PROG(DOT, [dot], [echo dot])
387 if test "$DOT" != "echo dot" ; then
388 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
389 dnl If we're targeting for mingw we should emit windows paths, not msys
390 if test "$llvm_cv_os_type" == "MingW" ; then
391 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
393 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
394 [Define to path to dot program if found or 'echo dot' otherwise])
396 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
397 if test "$GV" != "echo gv" ; then
398 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
399 dnl If we're targeting for mingw we should emit windows paths, not msys
400 if test "$llvm_cv_os_type" == "MingW" ; then
401 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
403 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
404 [Define to path to gv program if found or 'echo gv' otherwise])
406 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
407 if test "$DOTTY" != "echo dotty" ; then
408 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
409 dnl If we're targeting for mingw we should emit windows paths, not msys
410 if test "$llvm_cv_os_type" == "MingW" ; then
411 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
413 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
414 [Define to path to dotty program if found or 'echo dotty' otherwise])
417 dnl Look for a sufficiently recent version of Perl.
418 LLVM_PROG_PERL([5.006])
420 if test x"$PERL" = xnone; then
421 AC_SUBST(HAVE_PERL,0)
423 AC_SUBST(HAVE_PERL,1)
426 dnl Find the install program
429 dnl Checks for documentation and testing tools that we can do without. If these
430 dnl are not found then they are set to "true" which always succeeds but does
431 dnl nothing. This just lets the build output show that we could have done
432 dnl something if the tool was available.
433 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
434 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
435 AC_PATH_PROG(ETAGS,[etags],[echo "Skipped: etags not found"])
436 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
437 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
438 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
439 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
440 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
442 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
444 dnl Determine if the linker supports the -R option.
447 dnl Check for libtool and the library that has dlopen function (which must come
448 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
454 if test "$lt_cv_dlopen_self" = "yes" ; then
455 AC_DEFINE([CAN_DLOPEN_SELF],[1],
456 [Define if dlopen(0) will open the symbols of the program])
459 dnl Check if we know how to tell etags we are using C++:
460 etags_version=`$ETAGS --version 2>&1`
461 case "$etags_version" in
462 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
463 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
466 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
468 if test "$WITH_LLVMGCCDIR" = "default" ; then
469 LLVMGCC="llvm-gcc${EXEEXT}"
470 LLVMGXX="llvm-g++${EXEEXT}"
471 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
472 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
474 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
475 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
476 AC_SUBST(LLVMGCC,$LLVMGCC)
477 AC_SUBST(LLVMGXX,$LLVMGXX)
480 AC_MSG_CHECKING([tool compatibility])
482 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
483 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
484 dnl to support those options.
485 dnl "icc" emits gcc signatures
486 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
498 if test "$GCC" != "yes" && test "$ICC" != "yes"
500 AC_MSG_ERROR([gcc|icc required but not found])
503 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
504 if test "$GXX" != "yes" && test "$IXX" != "yes"
506 AC_MSG_ERROR([g++|icc required but not found])
509 dnl Verify that GCC is version 3.0 or higher
510 if test "$GCC" = "yes"
512 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
513 if test "$gccmajor" -lt "3"
515 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
519 dnl Check for GNU Make. We use its extensions, so don't build without it
520 if test -z "$llvm_cv_gnu_make_command"
522 AC_MSG_ERROR([GNU Make required but not found])
525 dnl Tool compatibility is okay if we make it here.
528 dnl===-----------------------------------------------------------------------===
530 dnl=== SECTION 5: Check for libraries
532 dnl===-----------------------------------------------------------------------===
534 dnl libelf is for sparc only; we can ignore it if we don't have it
535 AC_CHECK_LIB(elf, elf_begin)
537 if test "$llvm_cv_os_type" == "MingW" ; then
538 AC_CHECK_LIB(imagehlp, main)
539 AC_CHECK_LIB(psapi, main)
542 dnl lt_dlopen may be required for plugin support.
543 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
544 [Define if lt_dlopen() is available on this platform]),
545 AC_MSG_WARN([lt_dlopen() not found - plugin support might
548 dnl dlopen() is required for plugin support.
549 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
550 [Define if dlopen() is available on this platform.]),
551 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
553 dnl mallinfo is optional; the code can compile (minus features) without it
554 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
555 [Define if mallinfo() is available on this platform.]))
557 dnl pthread locking functions are optional - but llvm will not be thread-safe
559 if test "$ENABLE_THREADS" -eq 1 ; then
560 AC_CHECK_LIB(pthread,pthread_mutex_init)
561 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
562 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
563 [Have pthread_mutex_lock]))
566 dnl===-----------------------------------------------------------------------===
568 dnl=== SECTION 6: Check for header files
570 dnl===-----------------------------------------------------------------------===
572 dnl First, use autoconf provided macros for specific headers that we need
573 dnl We don't check for ancient stuff or things that are guaranteed to be there
574 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
575 dnl Generally we're looking for POSIX headers.
577 AC_HEADER_MMAP_ANONYMOUS
583 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
584 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
585 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
586 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h])
587 if test "$ENABLE_THREADS" -eq 1 ; then
588 AC_CHECK_HEADERS(pthread.h)
591 dnl===-----------------------------------------------------------------------===
593 dnl=== SECTION 7: Check for types and structures
595 dnl===-----------------------------------------------------------------------===
601 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
602 AC_CHECK_TYPES([uint64_t],,
603 AC_CHECK_TYPES([u_int64_t],,
604 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
606 dnl===-----------------------------------------------------------------------===
608 dnl=== SECTION 8: Check for specific functions needed
610 dnl===-----------------------------------------------------------------------===
612 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
613 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
614 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
615 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
616 AC_CHECK_FUNCS([_setjmp _longjmp setjmp longjmp sigsetjmp siglongjmp])
621 dnl Check for variations in the Standard C++ library and STL. These macros are
622 dnl provided by LLVM in the autoconf/m4 directory.
625 AC_CXX_HAVE_STD_ITERATOR
626 AC_CXX_HAVE_BI_ITERATOR
627 AC_CXX_HAVE_FWD_ITERATOR
631 dnl Check for mmap and mprotect support. We need both to do the JIT and for
632 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
633 dnl be opened for allocating RWX memory.
636 AC_NEED_DEV_ZERO_FOR_MMAP
637 AC_CHECK_FUNC(mprotect,,
638 AC_MSG_ERROR([Function mprotect() required but not found]))
640 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
642 AC_MSG_WARN([mmap() of a fixed address required but not supported])
644 if test "$ac_cv_func_mmap_file" = "no"
646 AC_MSG_WARN([mmap() of files required but not found])
649 dnl===-----------------------------------------------------------------------===
651 dnl=== SECTION 9: Additional checks, variables, etc.
653 dnl===-----------------------------------------------------------------------===
655 dnl See if the llvm-gcc executable can compile to LLVM assembly
656 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
657 [llvm_cv_llvmgcc_sanity="no"
658 if test -x "$LLVMGCC" ; then
659 cp /dev/null conftest.c
660 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
661 if test $? -eq 0 ; then
662 llvm_cv_llvmgcc_sanity="yes"
667 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
668 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
669 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
670 AC_SUBST(LLVMCC1,$llvmcc1path)
671 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
672 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
673 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
674 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
675 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
676 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
677 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
678 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
681 dnl Propagate the shared library extension that the libltdl checks did to
682 dnl the Makefiles so we can use it there too
683 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
685 # Translate the various configuration directories and other basic
686 # information into substitutions that will end up in Makefile.config.in
687 # that these configured values can be used by the makefiles
688 if test "${prefix}" == "NONE" ; then
691 eval LLVM_PREFIX="${prefix}";
692 eval LLVM_BINDIR="${prefix}/bin";
693 eval LLVM_LIBDIR="${prefix}/lib";
694 eval LLVM_DATADIR="${prefix}/share/llvm";
695 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
696 eval LLVM_ETCDIR="${prefix}/etc/llvm";
697 eval LLVM_INCLUDEDIR="${prefix}/include";
698 eval LLVM_INFODIR="${prefix}/info";
699 eval LLVM_MANDIR="${prefix}/man";
700 LLVM_CONFIGTIME=`date`
701 AC_SUBST(LLVM_PREFIX)
702 AC_SUBST(LLVM_BINDIR)
703 AC_SUBST(LLVM_LIBDIR)
704 AC_SUBST(LLVM_DATADIR)
705 AC_SUBST(LLVM_DOCSDIR)
706 AC_SUBST(LLVM_ETCDIR)
707 AC_SUBST(LLVM_INCLUDEDIR)
708 AC_SUBST(LLVM_INFODIR)
709 AC_SUBST(LLVM_MANDIR)
710 AC_SUBST(LLVM_CONFIGTIME)
712 # Place the various directores into the config.h file as #defines so that we
713 # can know about the installation paths within LLVM.
714 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
715 [Installation prefix directory])
716 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
717 [Installation directory for binary executables])
718 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
719 [Installation directory for libraries])
720 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
721 [Installation directory for data files])
722 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
723 [Installation directory for documentation])
724 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
725 [Installation directory for config files])
726 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
727 [Installation directory for include files])
728 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
729 [Installation directory for .info files])
730 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
731 [Installation directory for man pages])
732 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
733 [Time at which LLVM was configured])
735 dnl===-----------------------------------------------------------------------===
737 dnl=== SECTION 10: Specify the output files and generate it
739 dnl===-----------------------------------------------------------------------===
741 dnl Configure header files
742 dnl WARNING: dnl If you add or remove any of the following config headers, then
743 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
744 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
745 dnl files can be updated automatically when their *.in sources change.
746 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
747 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
748 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
749 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
750 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
752 dnl Configure the makefile's configuration data
753 AC_CONFIG_FILES([Makefile.config])
755 dnl Configure doxygen's configuration file
756 AC_CONFIG_FILES([docs/doxygen.cfg])
758 dnl Do the first stage of configuration for llvm-config.in.
759 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
761 dnl Do special configuration of Makefiles
762 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
763 AC_CONFIG_MAKEFILE(Makefile)
764 AC_CONFIG_MAKEFILE(Makefile.common)
765 AC_CONFIG_MAKEFILE(examples/Makefile)
766 AC_CONFIG_MAKEFILE(lib/Makefile)
767 AC_CONFIG_MAKEFILE(runtime/Makefile)
768 AC_CONFIG_MAKEFILE(test/Makefile)
769 AC_CONFIG_MAKEFILE(test/Makefile.tests)
770 AC_CONFIG_MAKEFILE(tools/Makefile)
771 AC_CONFIG_MAKEFILE(utils/Makefile)
772 AC_CONFIG_MAKEFILE(projects/Makefile)
774 dnl Finally, crank out the output
777 dnl Warn loudly if llvm-gcc was not obviously working
778 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
779 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
780 AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in])
781 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
782 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
783 AC_MSG_WARN([***** build the llvm tools.])