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]],[[2.1svn]],[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) 2003-2007 University of Illinois at Urbana-Champaign."])
39 AC_COPYRIGHT([Copyright (c) 2003-2007 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 privbracket) AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
72 llvm-stacker) AC_CONFIG_SUBDIRS([projects/llvm-stacker]) ;;
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 poolalloc) AC_CONFIG_SUBDIRS([projects/poolalloc]) ;;
80 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
82 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
88 dnl===-----------------------------------------------------------------------===
90 dnl=== SECTION 2: Architecture, target, and host checks
92 dnl===-----------------------------------------------------------------------===
94 dnl Check the target for which we're compiling and the host that will do the
95 dnl compilations. This will tell us which LLVM compiler will be used for
96 dnl compiling SSA into object code. This needs to be done early because
97 dnl following tests depend on it.
100 dnl Determine the platform type and cache its value. This helps us configure
101 dnl the System library to the correct build platform.
102 AC_CACHE_CHECK([type of operating system we're going to host on],
106 llvm_cv_link_all_option="-Wl,--whole-archive"
107 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
108 llvm_cv_os_type="AIX"
109 llvm_cv_platform_type="Unix" ;;
111 llvm_cv_link_all_option="-Wl,--whole-archive"
112 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
113 llvm_cv_os_type="IRIX"
114 llvm_cv_platform_type="Unix" ;;
116 llvm_cv_link_all_option="-Wl,--whole-archive"
117 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
118 llvm_cv_os_type="Cygwin"
119 llvm_cv_platform_type="Unix" ;;
121 llvm_cv_link_all_option="-Wl,-all_load"
122 llvm_cv_link_all_option="-Wl,-noall_load"
123 llvm_cv_os_type="Darwin"
124 llvm_cv_platform_type="Unix" ;;
126 llvm_cv_link_all_option="-Wl,--whole-archive"
127 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
128 llvm_cv_os_type="FreeBSD"
129 llvm_cv_platform_type="Unix" ;;
131 llvm_cv_link_all_option="-Wl,--whole-archive"
132 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
133 llvm_cv_os_type="OpenBSD"
134 llvm_cv_platform_type="Unix" ;;
136 llvm_cv_link_all_option="-Wl,--whole-archive"
137 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
138 llvm_cv_os_type="NetBSD"
139 llvm_cv_platform_type="Unix" ;;
141 llvm_cv_link_all_option="-Wl,--whole-archive"
142 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
143 llvm_cv_os_type="HP-UX"
144 llvm_cv_platform_type="Unix" ;;
146 llvm_cv_link_all_option="-Wl,--whole-archive"
147 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
148 llvm_cv_os_type="Interix"
149 llvm_cv_platform_type="Unix" ;;
151 llvm_cv_link_all_option="-Wl,--whole-archive"
152 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
153 llvm_cv_os_type="Linux"
154 llvm_cv_platform_type="Unix" ;;
156 llvm_cv_link_all_option="-Wl,-z,allextract"
157 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
158 llvm_cv_os_type="SunOS"
159 llvm_cv_platform_type="Unix" ;;
161 llvm_cv_link_all_option="-Wl,--whole-archive"
162 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
163 llvm_cv_os_type="Win32"
164 llvm_cv_platform_type="Win32" ;;
166 llvm_cv_link_all_option="-Wl,--whole-archive"
167 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
168 llvm_cv_os_type="MingW"
169 llvm_cv_platform_type="Win32" ;;
171 llvm_cv_link_all_option=""
172 llvm_cv_no_link_all_option=""
173 llvm_cv_os_type="Unknown"
174 llvm_cv_platform_type="Unknown" ;;
177 dnl Make sure we aren't attempting to configure for an unknown system
178 if test "$llvm_cv_os_type" = "Unknown" ; then
179 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
182 dnl Set the "OS" Makefile variable based on the platform type so the
183 dnl makefile can configure itself to specific build hosts
184 AC_SUBST(OS,$llvm_cv_os_type)
186 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
187 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
188 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
190 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
191 dnl This is used by lib/System to determine the basic kind of implementation
193 case $llvm_cv_platform_type in
195 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
196 AC_SUBST(LLVM_ON_UNIX,[1])
197 AC_SUBST(LLVM_ON_WIN32,[0])
200 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
201 AC_SUBST(LLVM_ON_UNIX,[0])
202 AC_SUBST(LLVM_ON_WIN32,[1])
206 dnl Determine what our target architecture is and configure accordingly.
207 dnl This will allow Makefiles to make a distinction between the hardware and
209 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
211 i?86-*) llvm_cv_target_arch="x86" ;;
212 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
213 sparc*-*) llvm_cv_target_arch="Sparc" ;;
214 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
215 alpha*-*) llvm_cv_target_arch="Alpha" ;;
216 ia64-*) llvm_cv_target_arch="IA64" ;;
217 arm-*) llvm_cv_target_arch="ARM" ;;
218 *) llvm_cv_target_arch="Unknown" ;;
221 if test "$llvm_cv_target_arch" = "Unknown" ; then
222 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
225 dnl Define a substitution, ARCH, for the target architecture
226 AC_SUBST(ARCH,$llvm_cv_target_arch)
228 dnl Check for the endianness of the target
229 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
231 dnl Check for build platform executable suffix if we're crosscompiling
232 if test "$cross_compiling" = yes; then
233 AC_SUBST(LLVM_CROSS_COMPILING, [1])
236 AC_SUBST(LLVM_CROSS_COMPILING, [0])
239 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
240 dnl build is being done from a checkout. This sets up several defaults for the
241 dnl command line switches. When we build with a CVS directory, we get a
242 dnl debug with assertions turned on. Without, we assume a source release and we
243 dnl get an optimized build without assertions. See --enable-optimized and
244 dnl --enable-assertions below
245 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
248 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
254 dnl===-----------------------------------------------------------------------===
256 dnl=== SECTION 3: Command line arguments for the configure script.
258 dnl===-----------------------------------------------------------------------===
260 dnl --enable-optimized : check whether they want to do an optimized build:
261 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
262 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
263 if test ${enableval} = "no" ; then
264 AC_SUBST(ENABLE_OPTIMIZED,[[]])
266 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
269 dnl --enable-assertions : check whether they want to turn on assertions or not:
270 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
271 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
272 if test ${enableval} = "yes" ; then
273 AC_SUBST(DISABLE_ASSERTIONS,[[]])
275 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
278 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
279 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
280 [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
281 if test ${enableval} = "yes" ; then
282 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
283 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
285 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
286 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
289 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
290 AC_ARG_ENABLE(debug-runtime,
291 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
292 if test ${enableval} = "no" ; then
293 AC_SUBST(DEBUG_RUNTIME,[[]])
295 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
298 dnl --enable-jit: check whether they want to enable the jit
300 AS_HELP_STRING(--enable-jit,
301 [Enable Just In Time Compiling (default is YES)]),,
303 if test ${enableval} = "no"
307 case "$llvm_cv_target_arch" in
308 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
309 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
310 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
311 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
312 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
313 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
314 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
315 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
319 dnl Allow enablement of doxygen generated documentation
320 AC_ARG_ENABLE(doxygen,
321 AS_HELP_STRING([--enable-doxygen],
322 [Build doxygen documentation (default is NO)]),,
325 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
326 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
327 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
328 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
331 dnl Allow disablement of threads
332 AC_ARG_ENABLE(threads,
333 AS_HELP_STRING([--enable-threads],
334 [Use threads if available (default is YES)]),,
337 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
338 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
339 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
340 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
342 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
344 dnl Allow building with position independent code
346 AS_HELP_STRING([--enable-pic],
347 [Build LLVM with Position Independent Code (default is NO)]),,
350 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
351 no) AC_SUBST(ENABLE_PIC,[0]) ;;
352 default) AC_SUBST(ENABLE_PIC,[0]) ;;
353 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
355 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
356 [Define if position independent code is enabled])
358 dnl Allow specific targets to be specified for building (or not)
360 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
361 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
364 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
366 case "$llvm_cv_target_arch" in
367 x86) TARGETS_TO_BUILD="X86" ;;
368 x86_64) TARGETS_TO_BUILD="X86" ;;
369 Sparc) TARGETS_TO_BUILD="Sparc" ;;
370 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
371 Alpha) TARGETS_TO_BUILD="Alpha" ;;
372 IA64) TARGETS_TO_BUILD="IA64" ;;
373 ARM) TARGETS_TO_BUILD="ARM" ;;
374 *) AC_MSG_ERROR([Can not set target to build]) ;;
377 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
379 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
380 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
381 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
382 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
383 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
384 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
385 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
386 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
391 TARGETS_TO_BUILD="CBackend MSIL $TARGETS_TO_BUILD"
392 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
394 dnl Prevent the CBackend from using printf("%a") for floating point so older
395 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
396 dnl can still compile the CBE's output
397 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
398 [Enable C Backend output with hex floating point via %a (default is YES)]),,
401 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
402 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
403 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
404 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
406 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
407 [Define if CBE is enabled for printf %a output])
409 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
410 AC_ARG_WITH(llvmgccdir,
411 AS_HELP_STRING([--with-llvmgccdir],
412 [Specify location of llvm-gcc install dir (default searches PATH)]),,
415 default) WITH_LLVMGCCDIR=default ;;
416 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
417 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
420 dnl Specify extra build options
421 AC_ARG_WITH(extra-options,
422 AS_HELP_STRING([--with-extra-options],
423 [Specify addtional options to compile LLVM with]),,
426 default) EXTRA_OPTIONS= ;;
427 *) EXTRA_OPTIONS=$withval ;;
429 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
431 dnl===-----------------------------------------------------------------------===
433 dnl=== SECTION 4: Check for programs we need and that they are the right version
435 dnl===-----------------------------------------------------------------------===
437 dnl Check for compilation tools
447 dnl Check for the tools that the makefiles require
450 AC_PATH_PROG(CMP, [cmp], [cmp])
451 AC_PATH_PROG(CP, [cp], [cp])
452 AC_PATH_PROG(DATE, [date], [date])
453 AC_PATH_PROG(FIND, [find], [find])
454 AC_PATH_PROG(GREP, [grep], [grep])
455 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
456 AC_PATH_PROG(MV, [mv], [mv])
458 AC_PATH_PROG(RM, [rm], [rm])
459 AC_PATH_PROG(SED, [sed], [sed])
460 AC_PATH_PROG(TAR, [tar], [gtar])
461 AC_PATH_PROG(BINPWD,[pwd], [pwd])
463 dnl Looking for misc. graph plotting software
464 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
465 if test "$GRAPHVIZ" != "echo Graphviz" ; then
466 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
467 dnl If we're targeting for mingw we should emit windows paths, not msys
468 if test "$llvm_cv_os_type" = "MingW" ; then
469 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
471 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
472 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
474 AC_PATH_PROG(DOT, [dot], [echo dot])
475 if test "$DOT" != "echo dot" ; then
476 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
477 dnl If we're targeting for mingw we should emit windows paths, not msys
478 if test "$llvm_cv_os_type" = "MingW" ; then
479 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
481 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
482 [Define to path to dot program if found or 'echo dot' otherwise])
484 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
485 if test "$GV" != "echo gv" ; then
486 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
487 dnl If we're targeting for mingw we should emit windows paths, not msys
488 if test "$llvm_cv_os_type" = "MingW" ; then
489 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
491 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
492 [Define to path to gv program if found or 'echo gv' otherwise])
494 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
495 if test "$DOTTY" != "echo dotty" ; then
496 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
497 dnl If we're targeting for mingw we should emit windows paths, not msys
498 if test "$llvm_cv_os_type" = "MingW" ; then
499 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
501 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
502 [Define to path to dotty program if found or 'echo dotty' otherwise])
505 dnl Look for a sufficiently recent version of Perl.
506 LLVM_PROG_PERL([5.006])
508 if test x"$PERL" = xnone; then
509 AC_SUBST(HAVE_PERL,0)
510 AC_MSG_ERROR([perl is required but was not found, please install it])
512 AC_SUBST(HAVE_PERL,1)
515 dnl Find the install program
518 dnl Checks for documentation and testing tools that we can do without. If these
519 dnl are not found then they are set to "true" which always succeeds but does
520 dnl nothing. This just lets the build output show that we could have done
521 dnl something if the tool was available.
522 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
523 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
524 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
525 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
526 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
527 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
528 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
530 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
532 dnl Determine if the linker supports the -R option.
535 dnl Check for libtool and the library that has dlopen function (which must come
536 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
542 if test "$lt_cv_dlopen_self" = "yes" ; then
543 AC_DEFINE([CAN_DLOPEN_SELF],[1],
544 [Define if dlopen(0) will open the symbols of the program])
547 dnl Check if we know how to tell etags we are using C++:
548 etags_version=`$ETAGS --version 2>&1`
549 case "$etags_version" in
550 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
551 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
554 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
556 if test "$WITH_LLVMGCCDIR" = "default" ; then
557 LLVMGCC="llvm-gcc${EXEEXT}"
558 LLVMGXX="llvm-g++${EXEEXT}"
559 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
560 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
562 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
563 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
564 AC_SUBST(LLVMGCC,$LLVMGCC)
565 AC_SUBST(LLVMGXX,$LLVMGXX)
568 AC_MSG_CHECKING([tool compatibility])
570 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
571 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
572 dnl to support those options.
573 dnl "icc" emits gcc signatures
574 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
586 if test "$GCC" != "yes" && test "$ICC" != "yes"
588 AC_MSG_ERROR([gcc|icc required but not found])
591 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
592 if test "$GXX" != "yes" && test "$IXX" != "yes"
594 AC_MSG_ERROR([g++|icc required but not found])
597 dnl Verify that GCC is version 3.0 or higher
598 if test "$GCC" = "yes"
600 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
601 if test "$gccmajor" -lt "3"
603 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
607 dnl Check for GNU Make. We use its extensions, so don't build without it
608 if test -z "$llvm_cv_gnu_make_command"
610 AC_MSG_ERROR([GNU Make required but not found])
613 dnl Tool compatibility is okay if we make it here.
616 dnl===-----------------------------------------------------------------------===
618 dnl=== SECTION 5: Check for libraries
620 dnl===-----------------------------------------------------------------------===
622 dnl libelf is for sparc only; we can ignore it if we don't have it
623 AC_CHECK_LIB(elf, elf_begin)
625 if test "$llvm_cv_os_type" = "MingW" ; then
626 AC_CHECK_LIB(imagehlp, main)
627 AC_CHECK_LIB(psapi, main)
630 dnl lt_dlopen may be required for plugin support.
631 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
632 [Define if lt_dlopen() is available on this platform]),
633 AC_MSG_WARN([lt_dlopen() not found - plugin support might
636 dnl dlopen() is required for plugin support.
637 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
638 [Define if dlopen() is available on this platform.]),
639 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
641 dnl mallinfo is optional; the code can compile (minus features) without it
642 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
643 [Define if mallinfo() is available on this platform.]))
645 dnl pthread locking functions are optional - but llvm will not be thread-safe
647 if test "$ENABLE_THREADS" -eq 1 ; then
648 AC_CHECK_LIB(pthread,pthread_mutex_init)
649 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
650 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
651 [Have pthread_mutex_lock]))
654 dnl Allow extra x86-disassembler library
656 AS_HELP_STRING([--with-udis86=<path>],
657 [Use udis86 external x86 disassembler library]),
659 AC_SUBST(USE_UDIS86, [1])
662 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
664 AC_CHECK_LIB(udis86, ud_init, [], [
665 echo "Error! You need to have libudis86 around."
669 AC_SUBST(USE_UDIS86, [0]))
670 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
671 [Define if use udis86 library])
673 dnl===-----------------------------------------------------------------------===
675 dnl=== SECTION 6: Check for header files
677 dnl===-----------------------------------------------------------------------===
679 dnl First, use autoconf provided macros for specific headers that we need
680 dnl We don't check for ancient stuff or things that are guaranteed to be there
681 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
682 dnl Generally we're looking for POSIX headers.
684 AC_HEADER_MMAP_ANONYMOUS
690 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
691 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
692 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
693 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
694 if test "$ENABLE_THREADS" -eq 1 ; then
695 AC_CHECK_HEADER(pthread.h,
696 AC_SUBST(HAVE_PTHREAD, 1),
697 AC_SUBST(HAVE_PTHREAD, 0))
699 AC_SUBST(HAVE_PTHREAD, 0)
702 dnl===-----------------------------------------------------------------------===
704 dnl=== SECTION 7: Check for types and structures
706 dnl===-----------------------------------------------------------------------===
713 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
714 AC_CHECK_TYPES([uint64_t],,
715 AC_CHECK_TYPES([u_int64_t],,
716 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
718 dnl===-----------------------------------------------------------------------===
720 dnl=== SECTION 8: Check for specific functions needed
722 dnl===-----------------------------------------------------------------------===
724 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
725 AC_CHECK_FUNCS([powf fmodf strtof round ])
726 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
727 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
728 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
729 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
730 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
735 dnl Check for variations in the Standard C++ library and STL. These macros are
736 dnl provided by LLVM in the autoconf/m4 directory.
739 AC_CXX_HAVE_STD_ITERATOR
740 AC_CXX_HAVE_BI_ITERATOR
741 AC_CXX_HAVE_FWD_ITERATOR
745 dnl Check for mmap support.We also need to know if /dev/zero is required to
746 dnl be opened for allocating RWX memory.
747 dnl Make sure we aren't attempting to configure for an unknown system
748 if test "$llvm_cv_platform_type" = "Unix" ; then
751 AC_NEED_DEV_ZERO_FOR_MMAP
753 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
755 AC_MSG_WARN([mmap() of a fixed address required but not supported])
757 if test "$ac_cv_func_mmap_file" = "no"
759 AC_MSG_WARN([mmap() of files required but not found])
763 dnl===-----------------------------------------------------------------------===
765 dnl=== SECTION 9: Additional checks, variables, etc.
767 dnl===-----------------------------------------------------------------------===
769 dnl Check, whether __dso_handle is present
770 AC_CHECK_FUNCS([__dso_handle])
772 dnl See if the llvm-gcc executable can compile to LLVM assembly
773 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
774 [llvm_cv_llvmgcc_sanity="no"
775 if test -x "$LLVMGCC" ; then
776 cp /dev/null conftest.c
777 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
778 grep 'target datalayout =' > /dev/null 2>&1
779 if test $? -eq 0 ; then
780 llvm_cv_llvmgcc_sanity="yes"
785 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
786 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
787 AC_MSG_CHECKING([llvm-gcc component support])
788 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
789 AC_SUBST(LLVMCC1,$llvmcc1path)
790 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
791 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
792 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
793 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
794 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
795 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
796 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
797 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
798 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
799 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
800 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
801 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
805 dnl Propagate the shared library extension that the libltdl checks did to
806 dnl the Makefiles so we can use it there too
807 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
809 # Translate the various configuration directories and other basic
810 # information into substitutions that will end up in Makefile.config.in
811 # that these configured values can be used by the makefiles
812 if test "${prefix}" = "NONE" ; then
815 eval LLVM_PREFIX="${prefix}";
816 eval LLVM_BINDIR="${prefix}/bin";
817 eval LLVM_LIBDIR="${prefix}/lib";
818 eval LLVM_DATADIR="${prefix}/share/llvm";
819 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
820 eval LLVM_ETCDIR="${prefix}/etc/llvm";
821 eval LLVM_INCLUDEDIR="${prefix}/include";
822 eval LLVM_INFODIR="${prefix}/info";
823 eval LLVM_MANDIR="${prefix}/man";
824 LLVM_CONFIGTIME=`date`
825 AC_SUBST(LLVM_PREFIX)
826 AC_SUBST(LLVM_BINDIR)
827 AC_SUBST(LLVM_LIBDIR)
828 AC_SUBST(LLVM_DATADIR)
829 AC_SUBST(LLVM_DOCSDIR)
830 AC_SUBST(LLVM_ETCDIR)
831 AC_SUBST(LLVM_INCLUDEDIR)
832 AC_SUBST(LLVM_INFODIR)
833 AC_SUBST(LLVM_MANDIR)
834 AC_SUBST(LLVM_CONFIGTIME)
836 # Place the various directores into the config.h file as #defines so that we
837 # can know about the installation paths within LLVM.
838 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
839 [Installation prefix directory])
840 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
841 [Installation directory for binary executables])
842 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
843 [Installation directory for libraries])
844 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
845 [Installation directory for data files])
846 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
847 [Installation directory for documentation])
848 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
849 [Installation directory for config files])
850 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
851 [Installation directory for include files])
852 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
853 [Installation directory for .info files])
854 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
855 [Installation directory for man pages])
856 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
857 [Time at which LLVM was configured])
859 dnl===-----------------------------------------------------------------------===
861 dnl=== SECTION 10: Specify the output files and generate it
863 dnl===-----------------------------------------------------------------------===
865 dnl Configure header files
866 dnl WARNING: dnl If you add or remove any of the following config headers, then
867 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
868 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
869 dnl files can be updated automatically when their *.in sources change.
870 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
871 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
872 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
873 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
874 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
876 dnl Configure the makefile's configuration data
877 AC_CONFIG_FILES([Makefile.config])
879 dnl Configure the RPM spec file for LLVM
880 AC_CONFIG_FILES([llvm.spec])
882 dnl Configure doxygen's configuration file
883 AC_CONFIG_FILES([docs/doxygen.cfg])
885 dnl Do the first stage of configuration for llvm-config.in.
886 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
888 dnl Do special configuration of Makefiles
889 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
890 AC_CONFIG_MAKEFILE(Makefile)
891 AC_CONFIG_MAKEFILE(Makefile.common)
892 AC_CONFIG_MAKEFILE(examples/Makefile)
893 AC_CONFIG_MAKEFILE(lib/Makefile)
894 AC_CONFIG_MAKEFILE(runtime/Makefile)
895 AC_CONFIG_MAKEFILE(test/Makefile)
896 AC_CONFIG_MAKEFILE(test/Makefile.tests)
897 AC_CONFIG_MAKEFILE(tools/Makefile)
898 AC_CONFIG_MAKEFILE(utils/Makefile)
899 AC_CONFIG_MAKEFILE(projects/Makefile)
901 dnl Finally, crank out the output