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]],[[2.2svn]],[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 $llvm_cv_platform_type in
195 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
196 AC_SUBST(LLVM_ON_UNIX,[1])
197 AC_SUBST(LLVM_ON_WIN32,[0])
200 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
201 AC_SUBST(LLVM_ON_UNIX,[0])
202 AC_SUBST(LLVM_ON_WIN32,[1])
206 dnl Determine what our target architecture is and configure accordingly.
207 dnl This will allow Makefiles to make a distinction between the hardware and
209 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
211 i?86-*) llvm_cv_target_arch="x86" ;;
212 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
213 sparc*-*) llvm_cv_target_arch="Sparc" ;;
214 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
215 alpha*-*) llvm_cv_target_arch="Alpha" ;;
216 ia64-*) llvm_cv_target_arch="IA64" ;;
217 arm-*) llvm_cv_target_arch="ARM" ;;
218 mips-*) llvm_cv_target_arch="Mips" ;;
219 *) llvm_cv_target_arch="Unknown" ;;
222 if test "$llvm_cv_target_arch" = "Unknown" ; then
223 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
226 dnl Define a substitution, ARCH, for the target architecture
227 AC_SUBST(ARCH,$llvm_cv_target_arch)
229 dnl Check for the endianness of the target
230 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
232 dnl Check for build platform executable suffix if we're crosscompiling
233 if test "$cross_compiling" = yes; then
234 AC_SUBST(LLVM_CROSS_COMPILING, [1])
237 AC_SUBST(LLVM_CROSS_COMPILING, [0])
240 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
241 dnl build is being done from a checkout. This sets up several defaults for the
242 dnl command line switches. When we build with a CVS directory, we get a
243 dnl debug with assertions turned on. Without, we assume a source release and we
244 dnl get an optimized build without assertions. See --enable-optimized and
245 dnl --enable-assertions below
246 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
249 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
255 dnl===-----------------------------------------------------------------------===
257 dnl=== SECTION 3: Command line arguments for the configure script.
259 dnl===-----------------------------------------------------------------------===
261 dnl --enable-optimized : check whether they want to do an optimized build:
262 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
263 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
264 if test ${enableval} = "no" ; then
265 AC_SUBST(ENABLE_OPTIMIZED,[[]])
267 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
270 dnl --enable-assertions : check whether they want to turn on assertions or not:
271 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
272 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
273 if test ${enableval} = "yes" ; then
274 AC_SUBST(DISABLE_ASSERTIONS,[[]])
276 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
279 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
280 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
281 [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
282 if test ${enableval} = "yes" ; then
283 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
284 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
286 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
287 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
290 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
291 AC_ARG_ENABLE(debug-runtime,
292 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
293 if test ${enableval} = "no" ; then
294 AC_SUBST(DEBUG_RUNTIME,[[]])
296 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
299 dnl --enable-jit: check whether they want to enable the jit
301 AS_HELP_STRING(--enable-jit,
302 [Enable Just In Time Compiling (default is YES)]),,
304 if test ${enableval} = "no"
308 case "$llvm_cv_target_arch" in
309 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
310 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
311 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
312 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
313 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
314 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
315 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
316 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
317 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
321 dnl Allow enablement of doxygen generated documentation
322 AC_ARG_ENABLE(doxygen,
323 AS_HELP_STRING([--enable-doxygen],
324 [Build doxygen documentation (default is NO)]),,
327 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
328 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
329 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
330 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
333 dnl Allow disablement of threads
334 AC_ARG_ENABLE(threads,
335 AS_HELP_STRING([--enable-threads],
336 [Use threads if available (default is YES)]),,
339 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
340 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
341 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
342 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
344 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
346 dnl Allow building with position independent code
348 AS_HELP_STRING([--enable-pic],
349 [Build LLVM with Position Independent Code (default is NO)]),,
352 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
353 no) AC_SUBST(ENABLE_PIC,[0]) ;;
354 default) AC_SUBST(ENABLE_PIC,[0]) ;;
355 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
357 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
358 [Define if position independent code is enabled])
360 dnl Allow specific targets to be specified for building (or not)
362 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
363 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
366 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips" ;;
368 case "$llvm_cv_target_arch" in
369 x86) TARGETS_TO_BUILD="X86" ;;
370 x86_64) TARGETS_TO_BUILD="X86" ;;
371 Sparc) TARGETS_TO_BUILD="Sparc" ;;
372 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
373 Alpha) TARGETS_TO_BUILD="Alpha" ;;
374 IA64) TARGETS_TO_BUILD="IA64" ;;
375 ARM) TARGETS_TO_BUILD="ARM" ;;
376 Mips) TARGETS_TO_BUILD="Mips" ;;
377 *) AC_MSG_ERROR([Can not set target to build]) ;;
380 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
382 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
383 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
384 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
385 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
386 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
387 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
388 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
389 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
390 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
395 TARGETS_TO_BUILD="CBackend MSIL $TARGETS_TO_BUILD"
396 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
398 dnl Prevent the CBackend from using printf("%a") for floating point so older
399 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
400 dnl can still compile the CBE's output
401 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
402 [Enable C Backend output with hex floating point via %a (default is YES)]),,
405 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
406 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
407 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
408 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
410 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
411 [Define if CBE is enabled for printf %a output])
413 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
414 AC_ARG_WITH(llvmgccdir,
415 AS_HELP_STRING([--with-llvmgccdir],
416 [Specify location of llvm-gcc install dir (default searches PATH)]),,
419 default) WITH_LLVMGCCDIR=default ;;
420 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
421 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
424 dnl Specify extra build options
425 AC_ARG_WITH(extra-options,
426 AS_HELP_STRING([--with-extra-options],
427 [Specify addtional options to compile LLVM with]),,
430 default) EXTRA_OPTIONS= ;;
431 *) EXTRA_OPTIONS=$withval ;;
433 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
435 dnl===-----------------------------------------------------------------------===
437 dnl=== SECTION 4: Check for programs we need and that they are the right version
439 dnl===-----------------------------------------------------------------------===
441 dnl Check for compilation tools
451 dnl Check for the tools that the makefiles require
454 AC_PATH_PROG(CMP, [cmp], [cmp])
455 AC_PATH_PROG(CP, [cp], [cp])
456 AC_PATH_PROG(DATE, [date], [date])
457 AC_PATH_PROG(FIND, [find], [find])
458 AC_PATH_PROG(GREP, [grep], [grep])
459 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
460 AC_PATH_PROG(MV, [mv], [mv])
462 AC_PATH_PROG(RM, [rm], [rm])
463 AC_PATH_PROG(SED, [sed], [sed])
464 AC_PATH_PROG(TAR, [tar], [gtar])
465 AC_PATH_PROG(BINPWD,[pwd], [pwd])
467 dnl Looking for misc. graph plotting software
468 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
469 if test "$GRAPHVIZ" != "echo Graphviz" ; then
470 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
471 dnl If we're targeting for mingw we should emit windows paths, not msys
472 if test "$llvm_cv_os_type" = "MingW" ; then
473 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
475 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
476 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
478 AC_PATH_PROG(DOT, [dot], [echo dot])
479 if test "$DOT" != "echo dot" ; then
480 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
481 dnl If we're targeting for mingw we should emit windows paths, not msys
482 if test "$llvm_cv_os_type" = "MingW" ; then
483 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
485 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
486 [Define to path to dot program if found or 'echo dot' otherwise])
488 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
489 if test "$GV" != "echo gv" ; then
490 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
491 dnl If we're targeting for mingw we should emit windows paths, not msys
492 if test "$llvm_cv_os_type" = "MingW" ; then
493 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
495 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
496 [Define to path to gv program if found or 'echo gv' otherwise])
498 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
499 if test "$DOTTY" != "echo dotty" ; then
500 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
501 dnl If we're targeting for mingw we should emit windows paths, not msys
502 if test "$llvm_cv_os_type" = "MingW" ; then
503 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
505 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
506 [Define to path to dotty program if found or 'echo dotty' otherwise])
509 dnl Look for a sufficiently recent version of Perl.
510 LLVM_PROG_PERL([5.006])
512 if test x"$PERL" = xnone; then
513 AC_SUBST(HAVE_PERL,0)
514 AC_MSG_ERROR([perl is required but was not found, please install it])
516 AC_SUBST(HAVE_PERL,1)
519 dnl Find the install program
522 dnl Checks for documentation and testing tools that we can do without. If these
523 dnl are not found then they are set to "true" which always succeeds but does
524 dnl nothing. This just lets the build output show that we could have done
525 dnl something if the tool was available.
526 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
527 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
528 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
529 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
530 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
531 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
532 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
534 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
535 AC_PATH_PROG(OCAMLC,[ocamlc],[echo "Skipped: ocamlc not found"])
536 AC_PATH_PROG(OCAMLOPT,[ocamlopt],[echo "Skipped: ocamlopt not found"])
537 AC_PATH_PROG(OCAMLDEP,[ocamldep],[echo "Skipped: ocamldep not found"])
539 dnl Determine if the linker supports the -R option.
542 dnl Check for libtool and the library that has dlopen function (which must come
543 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
549 if test "$lt_cv_dlopen_self" = "yes" ; then
550 AC_DEFINE([CAN_DLOPEN_SELF],[1],
551 [Define if dlopen(0) will open the symbols of the program])
554 dnl Check if we know how to tell etags we are using C++:
555 etags_version=`$ETAGS --version 2>&1`
556 case "$etags_version" in
557 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
558 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
561 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
563 if test "$WITH_LLVMGCCDIR" = "default" ; then
564 LLVMGCC="llvm-gcc${EXEEXT}"
565 LLVMGXX="llvm-g++${EXEEXT}"
566 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
567 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
569 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
570 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
571 AC_SUBST(LLVMGCC,$LLVMGCC)
572 AC_SUBST(LLVMGXX,$LLVMGXX)
575 AC_MSG_CHECKING([tool compatibility])
577 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
578 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
579 dnl to support those options.
580 dnl "icc" emits gcc signatures
581 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
593 if test "$GCC" != "yes" && test "$ICC" != "yes"
595 AC_MSG_ERROR([gcc|icc required but not found])
598 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
599 if test "$GXX" != "yes" && test "$IXX" != "yes"
601 AC_MSG_ERROR([g++|icc required but not found])
604 dnl Verify that GCC is version 3.0 or higher
605 if test "$GCC" = "yes"
607 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
608 if test "$gccmajor" -lt "3"
610 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
614 dnl Check for GNU Make. We use its extensions, so don't build without it
615 if test -z "$llvm_cv_gnu_make_command"
617 AC_MSG_ERROR([GNU Make required but not found])
620 dnl Tool compatibility is okay if we make it here.
623 dnl===-----------------------------------------------------------------------===
625 dnl=== SECTION 5: Check for libraries
627 dnl===-----------------------------------------------------------------------===
629 dnl libelf is for sparc only; we can ignore it if we don't have it
630 AC_CHECK_LIB(elf, elf_begin)
632 if test "$llvm_cv_os_type" = "MingW" ; then
633 AC_CHECK_LIB(imagehlp, main)
634 AC_CHECK_LIB(psapi, main)
637 dnl lt_dlopen may be required for plugin support.
638 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
639 [Define if lt_dlopen() is available on this platform]),
640 AC_MSG_WARN([lt_dlopen() not found - plugin support might
643 dnl dlopen() is required for plugin support.
644 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
645 [Define if dlopen() is available on this platform.]),
646 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
648 dnl mallinfo is optional; the code can compile (minus features) without it
649 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
650 [Define if mallinfo() is available on this platform.]))
652 dnl pthread locking functions are optional - but llvm will not be thread-safe
654 if test "$ENABLE_THREADS" -eq 1 ; then
655 AC_CHECK_LIB(pthread,pthread_mutex_init)
656 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
657 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
658 [Have pthread_mutex_lock]))
661 dnl Allow extra x86-disassembler library
663 AS_HELP_STRING([--with-udis86=<path>],
664 [Use udis86 external x86 disassembler library]),
666 AC_SUBST(USE_UDIS86, [1])
669 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
671 AC_CHECK_LIB(udis86, ud_init, [], [
672 echo "Error! You need to have libudis86 around."
676 AC_SUBST(USE_UDIS86, [0]))
677 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
678 [Define if use udis86 library])
680 dnl===-----------------------------------------------------------------------===
682 dnl=== SECTION 6: Check for header files
684 dnl===-----------------------------------------------------------------------===
686 dnl First, use autoconf provided macros for specific headers that we need
687 dnl We don't check for ancient stuff or things that are guaranteed to be there
688 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
689 dnl Generally we're looking for POSIX headers.
691 AC_HEADER_MMAP_ANONYMOUS
697 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
698 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
699 AC_CHECK_HEADERS([windows.h])
700 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
701 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
702 if test "$ENABLE_THREADS" -eq 1 ; then
703 AC_CHECK_HEADERS(pthread.h,
704 AC_SUBST(HAVE_PTHREAD, 1),
705 AC_SUBST(HAVE_PTHREAD, 0))
707 AC_SUBST(HAVE_PTHREAD, 0)
710 dnl===-----------------------------------------------------------------------===
712 dnl=== SECTION 7: Check for types and structures
714 dnl===-----------------------------------------------------------------------===
721 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
722 AC_CHECK_TYPES([uint64_t],,
723 AC_CHECK_TYPES([u_int64_t],,
724 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
726 dnl===-----------------------------------------------------------------------===
728 dnl=== SECTION 8: Check for specific functions needed
730 dnl===-----------------------------------------------------------------------===
732 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
733 AC_CHECK_FUNCS([powf fmodf strtof round ])
734 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
735 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
736 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
737 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
738 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
743 dnl Check for variations in the Standard C++ library and STL. These macros are
744 dnl provided by LLVM in the autoconf/m4 directory.
747 AC_CXX_HAVE_STD_ITERATOR
748 AC_CXX_HAVE_BI_ITERATOR
749 AC_CXX_HAVE_FWD_ITERATOR
753 dnl Check for mmap support.We also need to know if /dev/zero is required to
754 dnl be opened for allocating RWX memory.
755 dnl Make sure we aren't attempting to configure for an unknown system
756 if test "$llvm_cv_platform_type" = "Unix" ; then
759 AC_NEED_DEV_ZERO_FOR_MMAP
761 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
763 AC_MSG_WARN([mmap() of a fixed address required but not supported])
765 if test "$ac_cv_func_mmap_file" = "no"
767 AC_MSG_WARN([mmap() of files required but not found])
771 dnl===-----------------------------------------------------------------------===
773 dnl=== SECTION 9: Additional checks, variables, etc.
775 dnl===-----------------------------------------------------------------------===
777 dnl Check, whether __dso_handle is present
778 AC_CHECK_FUNCS([__dso_handle])
780 dnl See if the llvm-gcc executable can compile to LLVM assembly
781 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
782 [llvm_cv_llvmgcc_sanity="no"
783 if test -x "$LLVMGCC" ; then
784 cp /dev/null conftest.c
785 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
786 grep 'target datalayout =' > /dev/null 2>&1
787 if test $? -eq 0 ; then
788 llvm_cv_llvmgcc_sanity="yes"
793 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
794 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
795 AC_MSG_CHECKING([llvm-gcc component support])
796 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
797 AC_SUBST(LLVMCC1,$llvmcc1path)
798 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
799 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
800 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
801 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
802 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
803 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
804 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
805 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
806 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
807 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
808 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
809 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
813 dnl Propagate the shared library extension that the libltdl checks did to
814 dnl the Makefiles so we can use it there too
815 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
817 # Translate the various configuration directories and other basic
818 # information into substitutions that will end up in Makefile.config.in
819 # that these configured values can be used by the makefiles
820 if test "${prefix}" = "NONE" ; then
823 eval LLVM_PREFIX="${prefix}";
824 eval LLVM_BINDIR="${prefix}/bin";
825 eval LLVM_LIBDIR="${prefix}/lib";
826 eval LLVM_DATADIR="${prefix}/share/llvm";
827 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
828 eval LLVM_ETCDIR="${prefix}/etc/llvm";
829 eval LLVM_INCLUDEDIR="${prefix}/include";
830 eval LLVM_INFODIR="${prefix}/info";
831 eval LLVM_MANDIR="${prefix}/man";
832 LLVM_CONFIGTIME=`date`
833 AC_SUBST(LLVM_PREFIX)
834 AC_SUBST(LLVM_BINDIR)
835 AC_SUBST(LLVM_LIBDIR)
836 AC_SUBST(LLVM_DATADIR)
837 AC_SUBST(LLVM_DOCSDIR)
838 AC_SUBST(LLVM_ETCDIR)
839 AC_SUBST(LLVM_INCLUDEDIR)
840 AC_SUBST(LLVM_INFODIR)
841 AC_SUBST(LLVM_MANDIR)
842 AC_SUBST(LLVM_CONFIGTIME)
844 # Place the various directores into the config.h file as #defines so that we
845 # can know about the installation paths within LLVM.
846 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
847 [Installation prefix directory])
848 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
849 [Installation directory for binary executables])
850 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
851 [Installation directory for libraries])
852 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
853 [Installation directory for data files])
854 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
855 [Installation directory for documentation])
856 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
857 [Installation directory for config files])
858 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
859 [Installation directory for include files])
860 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
861 [Installation directory for .info files])
862 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
863 [Installation directory for man pages])
864 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
865 [Time at which LLVM was configured])
867 dnl===-----------------------------------------------------------------------===
869 dnl=== SECTION 10: Specify the output files and generate it
871 dnl===-----------------------------------------------------------------------===
873 dnl Configure header files
874 dnl WARNING: dnl If you add or remove any of the following config headers, then
875 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
876 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
877 dnl files can be updated automatically when their *.in sources change.
878 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
879 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
880 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
881 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
882 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
884 dnl Configure the makefile's configuration data
885 AC_CONFIG_FILES([Makefile.config])
887 dnl Configure the RPM spec file for LLVM
888 AC_CONFIG_FILES([llvm.spec])
890 dnl Configure doxygen's configuration file
891 AC_CONFIG_FILES([docs/doxygen.cfg])
893 dnl Do the first stage of configuration for llvm-config.in.
894 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
896 dnl Do special configuration of Makefiles
897 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
898 AC_CONFIG_MAKEFILE(Makefile)
899 AC_CONFIG_MAKEFILE(Makefile.common)
900 AC_CONFIG_MAKEFILE(examples/Makefile)
901 AC_CONFIG_MAKEFILE(lib/Makefile)
902 AC_CONFIG_MAKEFILE(runtime/Makefile)
903 AC_CONFIG_MAKEFILE(test/Makefile)
904 AC_CONFIG_MAKEFILE(test/Makefile.tests)
905 AC_CONFIG_MAKEFILE(tools/Makefile)
906 AC_CONFIG_MAKEFILE(utils/Makefile)
907 AC_CONFIG_MAKEFILE(projects/Makefile)
908 AC_CONFIG_MAKEFILE(bindings/Makefile)
909 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
911 dnl Finally, crank out the output