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]],[[1.7cvs]],[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 "llvm-test") AC_CONFIG_SUBDIRS([projects/llvm-test]) ;;
73 "llvm-reopt") AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
74 "llvm-gcc") AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;;
75 "llvm-java") AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
76 "llvm-tv") AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
77 "llvm-poolalloc") AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;;
78 "llvm-kernel") AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
80 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
86 dnl===-----------------------------------------------------------------------===
88 dnl=== SECTION 2: Architecture, target, and host checks
90 dnl===-----------------------------------------------------------------------===
92 dnl Check the target for which we're compiling and the host that will do the
93 dnl compilations. This will tell us which LLVM compiler will be used for
94 dnl compiling SSA into object code. This needs to be done early because
95 dnl following tests depend on it.
98 dnl Determine the platform type and cache its value. This helps us configure
99 dnl the System library to the correct build platform.
100 AC_CACHE_CHECK([type of operating system we're on],
104 llvm_cv_os_type="AIX"
105 llvm_cv_platform_type="Unix" ;;
107 llvm_cv_os_type="Cygwin"
108 llvm_cv_platform_type="Unix" ;;
110 llvm_cv_os_type="Darwin"
111 llvm_cv_platform_type="Unix" ;;
113 llvm_cv_os_type="FreeBSD"
114 llvm_cv_platform_type="Unix" ;;
116 llvm_cv_os_type="HP-UX"
117 llvm_cv_platform_type="Unix" ;;
119 llvm_cv_os_type="Interix"
120 llvm_cv_platform_type="Unix" ;;
122 llvm_cv_os_type="Linux"
123 llvm_cv_platform_type="Unix" ;;
125 llvm_cv_os_type="SunOS"
126 llvm_cv_platform_type="Unix" ;;
128 llvm_cv_os_type="Win32"
129 llvm_cv_platform_type="Win32" ;;
131 llvm_cv_os_type="MingW"
132 llvm_cv_platform_type="Win32" ;;
134 llvm_cv_os_type="Unknown"
135 llvm_cv_platform_type="Unknown" ;;
138 dnl Make sure we aren't attempting to configure for an unknown system
139 if test "$llvm_cv_os_type" = "Unknown" ; then
140 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
143 dnl Set the "OS" Makefile variable based on the platform type so the
144 dnl makefile can configure itself to specific build hosts
145 AC_SUBST(OS,$llvm_cv_os_type)
147 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
148 dnl This is used by lib/System to determine the basic kind of implementation
150 case $llvm_cv_platform_type in
152 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
153 AC_SUBST(LLVM_ON_UNIX,[1])
154 AC_SUBST(LLVM_ON_WIN32,[0])
157 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
158 AC_SUBST(LLVM_ON_UNIX,[0])
159 AC_SUBST(LLVM_ON_WIN32,[1])
163 dnl Determine what our target architecture is and configure accordingly.
164 dnl This will allow Makefiles to make a distinction between the hardware and
166 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
168 i?86-*) llvm_cv_target_arch="x86" ;;
169 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
170 sparc*-*) llvm_cv_target_arch="Sparc" ;;
171 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
172 alpha*-*) llvm_cv_target_arch="Alpha" ;;
173 ia64-*) llvm_cv_target_arch="IA64" ;;
174 *) llvm_cv_target_arch="Unknown" ;;
177 if test "$llvm_cv_target_arch" = "Unknown" ; then
178 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
181 dnl Define a substitution, ARCH, for the target architecture
182 AC_SUBST(ARCH,$llvm_cv_target_arch)
184 dnl Check for the endianness of the target
185 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
187 dnl Check to see if there's a "CVS" directory indicating that this build is
188 dnl being done from a CVS checkout. This sets up several defaults for the
189 dnl command line switches. When we build with a CVS directory, we get a
190 dnl debug with assertions turned on. Without, we assume a source release and we
191 dnl get an optimized build without assertions. See --enable-optimized and
192 dnl --enable-assertions below
193 if test -d "CVS" -o -d "${srcdir}/CVS"; then
197 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
204 dnl===-----------------------------------------------------------------------===
206 dnl=== SECTION 3: Command line arguments for the configure script.
208 dnl===-----------------------------------------------------------------------===
210 dnl --enable-optimized : check whether they want to do an optimized build:
211 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
212 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
213 if test ${enableval} = "no" ; then
214 AC_SUBST(ENABLE_OPTIMIZED,[[]])
216 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
219 dnl --enable-assertions : check whether they want to turn on assertions or not:
220 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
221 [--enable-assertions,Compile with assertion checks enabled (default is NO)]),, enableval=$asserts)
222 if test ${enableval} = "no" ; then
223 AC_SUBST(ENABLE_ASSERTIONS,[[]])
225 AC_SUBST(ENABLE_ASSERTIONS,[[ENABLE_ASSERTIONS=1]])
228 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
229 AC_ARG_ENABLE(debug-runtime,
230 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
231 if test ${enableval} = "no" ; then
232 AC_SUBST(DEBUG_RUNTIME,[[]])
234 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
237 dnl --enable-jit: check whether they want to enable the jit
239 AS_HELP_STRING(--enable-jit,
240 [Enable Just In Time Compiling (default is YES)]),,
242 if test ${enableval} = "no"
246 case "$llvm_cv_target_arch" in
247 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
248 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
249 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
250 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
251 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
252 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
253 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
257 dnl Allow enablement of doxygen generated documentation
258 AC_ARG_ENABLE(doxygen,
259 AS_HELP_STRING([--enable-doxygen],
260 [Build doxygen documentation (default is NO)]),,
263 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
264 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
265 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
266 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
269 dnl Allow disablement of threads
270 AC_ARG_ENABLE(threads,
271 AS_HELP_STRING([--enable-threads],
272 [Use threads if available (default is YES)]),,
275 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
276 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
277 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
279 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
281 dnl Allow specific targets to be specified for building (or not)
283 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-target],
284 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
287 all) TARGETS_TO_BUILD="X86 Sparc SparcV9 PowerPC Alpha IA64" ;;
289 case "$llvm_cv_target_arch" in
290 x86) TARGETS_TO_BUILD="X86" ;;
291 x86_64) TARGETS_TO_BUILD="X86" ;;
292 Sparc) TARGETS_TO_BUILD="Sparc SparcV9" ;;
293 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
294 Alpha) TARGETS_TO_BUILD="Alpha" ;;
295 IA64) TARGETS_TO_BUILD="IA64" ;;
296 *) AC_MSG_ERROR([Can not set target to build]) ;;
299 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
301 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
302 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
303 sparc) TARGETS_TO_BUILD="Sparc SparcV9 $TARGETS_TO_BUILD" ;;
304 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
305 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
306 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
307 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
312 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
313 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
315 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
316 AC_ARG_WITH(llvmgccdir,
317 AS_HELP_STRING([--with-llvmgccdir],
318 [Specify location of llvm-gcc install dir (default searches PATH)]),,
321 default) WITH_LLVMGCCDIR=default ;;
322 /*) WITH_LLVMGCCDIR=$withval ;;
323 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
327 dnl===-----------------------------------------------------------------------===
329 dnl=== SECTION 4: Check for programs we need and that they are the right version
331 dnl===-----------------------------------------------------------------------===
333 dnl Check for compilation tools
340 dnl Check for the tools that the makefiles require
343 AC_PATH_PROG(CMP, [cmp], [cmp])
344 AC_PATH_PROG(CP, [cp], [cp])
345 AC_PATH_PROG(DATE, [date], [date])
346 AC_PATH_PROG(FIND, [find], [find])
347 AC_PATH_PROG(GREP, [grep], [grep])
348 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
349 AC_PATH_PROG(MV, [mv], [mv])
351 AC_PATH_PROG(RM, [rm], [rm])
352 AC_PATH_PROG(SED, [sed], [sed])
353 AC_PATH_PROG(TAR, [tar], [gtar])
354 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
355 if test "$GRAPHVIZ" != "echo Graphviz" ; then
356 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
357 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ",
358 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
360 AC_PATH_PROG(GV, [gv], [echo gv])
361 if test "$GV" != "echo gv" ; then
362 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
363 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV",
364 [Define to path to gv program if found or 'echo gv' otherwise])
367 dnl Look for a sufficiently recent version of Perl.
368 LLVM_PROG_PERL([5.006])
370 if test x"$PERL" = xnone; then
371 AC_SUBST(HAVE_PERL,0)
373 AC_SUBST(HAVE_PERL,1)
376 dnl Find the install program
379 dnl Checks for documentation and testing tools that we can do without. If these
380 dnl are not found then they are set to "true" which always succeeds but does
381 dnl nothing. This just lets the build output show that we could have done
382 dnl something if the tool was available.
383 AC_PATH_PROG(BZIP2,[bzip2],[true bzip2])
384 AC_PATH_PROG(DOT,[dot],[true dot])
385 AC_PATH_PROG(DOXYGEN,[doxygen],[true doxygen])
386 AC_PATH_PROG(ETAGS,[etags],[true etags])
387 AC_PATH_PROG(GROFF,[groff],[true groff])
388 AC_PATH_PROG(GZIP,[gzip],[true gzip])
389 AC_PATH_PROG(POD2HTML,[pod2html],[true pod2html])
390 AC_PATH_PROG(POD2MAN,[pod2man],[true pod2man])
391 AC_PATH_PROG(RUNTEST,[runtest],[true runtest])
393 AC_PATH_PROG(ZIP,[zip],[true zip])
395 dnl Determine if the linker supports the -R option.
398 dnl Check for libtool and the library that has dlopen function (which must come
399 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
405 if test "$lt_cv_dlopen_self" = "yes" ; then
406 AC_DEFINE([CAN_DLOPEN_SELF],[1],
407 [Define if dlopen(0) will open the symbols of the program])
410 dnl Check if we know how to tell etags we are using C++:
411 etags_version=`$ETAGS --version 2>&1`
412 case "$etags_version" in
413 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
414 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
417 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
419 if test "$WITH_LLVMGCCDIR" = "default" ; then
420 LLVMGCC="llvm-gcc${EXEEXT}"
421 LLVMGXX="llvm-g++${EXEEXT}"
422 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
423 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
425 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
426 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
427 AC_SUBST(LLVMGCC,$LLVMGCC)
428 AC_SUBST(LLVMGXX,$LLVMGXX)
431 AC_MSG_CHECKING([tool compatibility])
433 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
434 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
435 dnl to support those options.
436 dnl "icc" emits gcc signatures
437 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
449 if test "$GCC" != "yes" && test "$ICC" != "yes"
451 AC_MSG_ERROR([gcc|icc required but not found])
454 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
455 if test "$GXX" != "yes" && test "$IXX" != "yes"
457 AC_MSG_ERROR([g++|icc required but not found])
460 dnl Verify that GCC is version 3.0 or higher
461 if test "$GCC" = "yes"
463 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
464 if test "$gccmajor" -lt "3"
466 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
470 dnl Check for GNU Make. We use its extensions, so don't build without it
471 if test -z "$llvm_cv_gnu_make_command"
473 AC_MSG_ERROR([GNU Make required but not found])
476 dnl Tool compatibility is okay if we make it here.
479 dnl===-----------------------------------------------------------------------===
481 dnl=== SECTION 5: Check for libraries
483 dnl===-----------------------------------------------------------------------===
485 dnl libelf is for sparc only; we can ignore it if we don't have it
486 AC_CHECK_LIB(elf, elf_begin)
489 dnl lt_dlopen may be required for plugin support.
490 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
491 [Define if lt_dlopen() is available on this platform]),
492 AC_MSG_WARN([lt_dlopen() not found - plugin support might
495 dnl dlopen() is required for plugin support.
496 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
497 [Define if dlopen() is available on this platform.]),
498 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
500 dnl mallinfo is optional; the code can compile (minus features) without it
501 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
502 [Define if mallinfo() is available on this platform.]))
504 dnl pthread locking functions are optional - but llvm will not be thread-safe
506 if test "$ENABLE_THREADS" -eq 1 ; then
507 AC_CHECK_LIB(pthread,pthread_mutex_init)
508 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
509 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
510 [Have pthread_mutex_lock]))
513 dnl===-----------------------------------------------------------------------===
515 dnl=== SECTION 6: Check for header files
517 dnl===-----------------------------------------------------------------------===
519 dnl First, use autoconf provided macros for specific headers that we need
520 dnl We don't check for ancient stuff or things that are guaranteed to be there
521 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
522 dnl Generally we're looking for POSIX headers.
524 AC_HEADER_MMAP_ANONYMOUS
530 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
531 AC_CHECK_HEADERS([malloc.h signal.h stdint.h unistd.h utime.h windows.h])
532 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/types.h])
533 AC_CHECK_HEADERS([malloc/malloc.h])
534 if test "$ENABLE_THREADS" -eq 1 ; then
535 AC_CHECK_HEADERS(pthread.h)
538 dnl===-----------------------------------------------------------------------===
540 dnl=== SECTION 7: Check for types and structures
542 dnl===-----------------------------------------------------------------------===
548 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
549 AC_CHECK_TYPES([uint64_t],,
550 AC_CHECK_TYPES([u_int64_t],,
551 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
553 dnl===-----------------------------------------------------------------------===
555 dnl=== SECTION 8: Check for specific functions needed
557 dnl===-----------------------------------------------------------------------===
559 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
560 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
561 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
562 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
567 dnl Check for variations in the Standard C++ library and STL. These macros are
568 dnl provided by LLVM in the autoconf/m4 directory.
571 AC_CXX_HAVE_STD_ITERATOR
572 AC_CXX_HAVE_BI_ITERATOR
573 AC_CXX_HAVE_FWD_ITERATOR
577 dnl Check for mmap and mprotect support. We need both to do the JIT and for
578 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
579 dnl be opened for allocating RWX memory.
582 AC_NEED_DEV_ZERO_FOR_MMAP
583 AC_CHECK_FUNC(mprotect,,
584 AC_MSG_ERROR([Function mprotect() required but not found]))
586 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
588 AC_MSG_WARN([mmap() of a fixed address required but not supported])
590 if test "$ac_cv_func_mmap_file" = "no"
592 AC_MSG_WARN([mmap() of files required but not found])
595 dnl===-----------------------------------------------------------------------===
597 dnl=== SECTION 9: Additional checks, variables, etc.
599 dnl===-----------------------------------------------------------------------===
601 dnl See if the llvm-gcc executable can compile to LLVM assembly
602 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
603 [llvm_cv_llvmgcc_sanity="no"
604 if test -x "$LLVMGCC" ; then
605 cp /dev/null conftest.c
606 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
607 if test $? -eq 0 ; then
608 llvm_cv_llvmgcc_sanity="yes"
613 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
614 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
615 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
616 AC_SUBST(LLVMCC1,$llvmcc1path)
617 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
618 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
619 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
620 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
621 llvmgccversion=[`"$LLVMGCC" -v 2>&1 | grep '^gcc version' | sed 's/^gcc version \([0-9.]*\).*/\1/'`]
622 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
623 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
624 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
627 dnl Propagate the shared library extension that the libltdl checks did to
628 dnl the Makefiles so we can use it there too
629 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
631 # Translate the various configuration directories and other basic
632 # information into substitutions that will end up in Makefile.config.in
633 # that these configured values can be used by the makefiles
634 eval LLVM_PREFIX="${prefix}";
635 eval LLVM_BINDIR="${prefix}/bin";
636 eval LLVM_LIBDIR="${prefix}/lib";
637 eval LLVM_DATADIR="${prefix}/share/llvm";
638 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
639 eval LLVM_ETCDIR="${prefix}/etc/llvm";
640 eval LLVM_INCLUDEDIR="${prefix}/include";
641 eval LLVM_INFODIR="${prefix}/info";
642 eval LLVM_MANDIR="${prefix}/man";
643 LLVM_CONFIGTIME=`date`
644 AC_SUBST(LLVM_PREFIX)
645 AC_SUBST(LLVM_BINDIR)
646 AC_SUBST(LLVM_LIBDIR)
647 AC_SUBST(LLVM_DATADIR)
648 AC_SUBST(LLVM_DOCSDIR)
649 AC_SUBST(LLVM_ETCDIR)
650 AC_SUBST(LLVM_INCLUDEDIR)
651 AC_SUBST(LLVM_INFODIR)
652 AC_SUBST(LLVM_MANDIR)
653 AC_SUBST(LLVM_CONFIGTIME)
655 # Place the various directores into the config.h file as #defines so that we
656 # can know about the installation paths within LLVM.
657 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
658 [Installation prefix directory])
659 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
660 [Installation directory for binary executables])
661 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
662 [Installation directory for libraries])
663 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
664 [Installation directory for data files])
665 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
666 [Installation directory for documentation])
667 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
668 [Installation directory for config files])
669 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
670 [Installation directory for include files])
671 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
672 [Installation directory for .info files])
673 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
674 [Installation directory for man pages])
675 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
676 [Time at which LLVM was configured])
678 dnl===-----------------------------------------------------------------------===
680 dnl=== SECTION 10: Specify the output files and generate it
682 dnl===-----------------------------------------------------------------------===
684 dnl Configure header files
685 dnl WARNING: dnl If you add or remove any of the following config headers, then
686 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
687 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
688 dnl files can be updated automatically when their *.in sources change.
689 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
690 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
691 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
692 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
693 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
695 dnl Configure the makefile's configuration data
696 AC_CONFIG_FILES([Makefile.config])
698 dnl Configure doxygen's configuration file
699 AC_CONFIG_FILES([docs/doxygen.cfg])
701 dnl Do the first stage of configuration for llvm-config.in.
702 AC_CONFIG_FILES([utils/llvm-config/llvm-config.in])
704 dnl Do special configuration of Makefiles
705 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
706 AC_CONFIG_MAKEFILE(Makefile)
707 AC_CONFIG_MAKEFILE(Makefile.common)
708 AC_CONFIG_MAKEFILE(examples/Makefile)
709 AC_CONFIG_MAKEFILE(lib/Makefile)
710 AC_CONFIG_MAKEFILE(runtime/Makefile)
711 AC_CONFIG_MAKEFILE(test/Makefile)
712 AC_CONFIG_MAKEFILE(test/Makefile.tests)
713 AC_CONFIG_MAKEFILE(tools/Makefile)
714 AC_CONFIG_MAKEFILE(utils/Makefile)
715 AC_CONFIG_MAKEFILE(projects/Makefile)
717 dnl Finally, crank out the output
720 dnl Warn loudly if llvm-gcc was not obviously working
721 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
722 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
723 AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in])
724 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
725 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
726 AC_MSG_WARN([***** build the llvm tools.])