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 Allow a specific llvm-gcc compiler to be used with this LLVM config.
426 AS_HELP_STRING([--with-llvmgcc],
427 [Specify location of llvm-gcc driver (default searches PATH)]),
428 LLVMGCC=$with_llvmgcc
431 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
433 AS_HELP_STRING([--with-llvmgxx],
434 [Specify location of llvm-g++ driver (default searches PATH)]),
435 LLVMGXX=$with_llvmgxx
438 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
439 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
442 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
443 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
446 dnl Specify extra build options
447 AC_ARG_WITH(extra-options,
448 AS_HELP_STRING([--with-extra-options],
449 [Specify addtional options to compile LLVM with]),,
452 default) EXTRA_OPTIONS= ;;
453 *) EXTRA_OPTIONS=$withval ;;
455 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
457 dnl Allow specific bindings to be specified for building (or not)
458 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
459 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
463 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
464 all ) BINDINGS_TO_BUILD="ocaml" ;;
465 none | no) BINDINGS_TO_BUILD="" ;;
466 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
468 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
469 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
475 dnl Allow the ocaml libdir to be overridden. This could go in a configure
476 dnl script for bindings/ocaml/configure, except that its auto value depends on
477 dnl OCAMLC, which is found here to support tests.
478 AC_ARG_WITH([ocaml-libdir],
479 [AS_HELP_STRING([--with-ocaml-libdir],
480 [Specify install location for ocaml bindings (default is stdlib)])],
484 auto) with_ocaml_libdir="$withval" ;;
485 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
486 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
489 dnl===-----------------------------------------------------------------------===
491 dnl=== SECTION 4: Check for programs we need and that they are the right version
493 dnl===-----------------------------------------------------------------------===
495 dnl Check for compilation tools
505 dnl Check for the tools that the makefiles require
508 AC_PATH_PROG(CMP, [cmp], [cmp])
509 AC_PATH_PROG(CP, [cp], [cp])
510 AC_PATH_PROG(DATE, [date], [date])
511 AC_PATH_PROG(FIND, [find], [find])
512 AC_PATH_PROG(GREP, [grep], [grep])
513 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
514 AC_PATH_PROG(MV, [mv], [mv])
516 AC_PATH_PROG(RM, [rm], [rm])
517 AC_PATH_PROG(SED, [sed], [sed])
518 AC_PATH_PROG(TAR, [tar], [gtar])
519 AC_PATH_PROG(BINPWD,[pwd], [pwd])
521 dnl Looking for misc. graph plotting software
522 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
523 if test "$GRAPHVIZ" != "echo Graphviz" ; then
524 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
525 dnl If we're targeting for mingw we should emit windows paths, not msys
526 if test "$llvm_cv_os_type" = "MingW" ; then
527 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
529 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
530 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
532 AC_PATH_PROG(DOT, [dot], [echo dot])
533 if test "$DOT" != "echo dot" ; then
534 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
535 dnl If we're targeting for mingw we should emit windows paths, not msys
536 if test "$llvm_cv_os_type" = "MingW" ; then
537 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
539 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
540 [Define to path to dot program if found or 'echo dot' otherwise])
542 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
543 if test "$GV" != "echo gv" ; then
544 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
545 dnl If we're targeting for mingw we should emit windows paths, not msys
546 if test "$llvm_cv_os_type" = "MingW" ; then
547 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
549 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
550 [Define to path to gv program if found or 'echo gv' otherwise])
552 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
553 if test "$DOTTY" != "echo dotty" ; then
554 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
555 dnl If we're targeting for mingw we should emit windows paths, not msys
556 if test "$llvm_cv_os_type" = "MingW" ; then
557 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
559 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
560 [Define to path to dotty program if found or 'echo dotty' otherwise])
563 dnl Look for a sufficiently recent version of Perl.
564 LLVM_PROG_PERL([5.006])
566 if test x"$PERL" = xnone; then
567 AC_SUBST(HAVE_PERL,0)
568 AC_MSG_ERROR([perl is required but was not found, please install it])
570 AC_SUBST(HAVE_PERL,1)
573 dnl Find the install program
576 dnl Checks for documentation and testing tools that we can do without. If these
577 dnl are not found then they are set to "true" which always succeeds but does
578 dnl nothing. This just lets the build output show that we could have done
579 dnl something if the tool was available.
580 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
581 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
582 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
583 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
584 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
585 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
586 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
588 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
589 AC_PATH_PROG(OCAMLC,[ocamlc],[echo "Skipped: ocamlc not found"])
590 AC_PATH_PROG(OCAMLOPT,[ocamlopt],[echo "Skipped: ocamlopt not found"])
591 AC_PATH_PROG(OCAMLDEP,[ocamldep],[echo "Skipped: ocamldep not found"])
593 dnl Determine if the linker supports the -R option.
596 dnl Check for libtool and the library that has dlopen function (which must come
597 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
603 if test "$lt_cv_dlopen_self" = "yes" ; then
604 AC_DEFINE([CAN_DLOPEN_SELF],[1],
605 [Define if dlopen(0) will open the symbols of the program])
608 if test "$WITH_LLVMGCCDIR" = "default" ; then
609 LLVMGCC="llvm-gcc${EXEEXT}"
610 LLVMGXX="llvm-g++${EXEEXT}"
611 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
612 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
614 if test -z "$LLVMGCC"; then
615 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
617 if test -z "$LLVMGXX"; then
618 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
620 AC_SUBST(LLVMGCC,$LLVMGCC)
621 AC_SUBST(LLVMGXX,$LLVMGXX)
624 AC_MSG_CHECKING([tool compatibility])
626 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
627 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
628 dnl to support those options.
629 dnl "icc" emits gcc signatures
630 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
642 if test "$GCC" != "yes" && test "$ICC" != "yes"
644 AC_MSG_ERROR([gcc|icc required but not found])
647 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
648 if test "$GXX" != "yes" && test "$IXX" != "yes"
650 AC_MSG_ERROR([g++|icc required but not found])
653 dnl Verify that GCC is version 3.0 or higher
654 if test "$GCC" = "yes"
656 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
657 if test "$gccmajor" -lt "3"
659 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
663 dnl Check for GNU Make. We use its extensions, so don't build without it
664 if test -z "$llvm_cv_gnu_make_command"
666 AC_MSG_ERROR([GNU Make required but not found])
669 dnl Tool compatibility is okay if we make it here.
672 dnl===-----------------------------------------------------------------------===
674 dnl=== SECTION 5: Check for libraries
676 dnl===-----------------------------------------------------------------------===
678 dnl libelf is for sparc only; we can ignore it if we don't have it
679 AC_CHECK_LIB(elf, elf_begin)
681 if test "$llvm_cv_os_type" = "MingW" ; then
682 AC_CHECK_LIB(imagehlp, main)
683 AC_CHECK_LIB(psapi, main)
686 dnl lt_dlopen may be required for plugin support.
687 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
688 [Define if lt_dlopen() is available on this platform]),
689 AC_MSG_WARN([lt_dlopen() not found - plugin support might
692 dnl dlopen() is required for plugin support.
693 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
694 [Define if dlopen() is available on this platform.]),
695 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
697 dnl mallinfo is optional; the code can compile (minus features) without it
698 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
699 [Define if mallinfo() is available on this platform.]))
701 dnl pthread locking functions are optional - but llvm will not be thread-safe
703 if test "$ENABLE_THREADS" -eq 1 ; then
704 AC_CHECK_LIB(pthread,pthread_mutex_init)
705 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
706 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
707 [Have pthread_mutex_lock]))
710 dnl Allow extra x86-disassembler library
712 AS_HELP_STRING([--with-udis86=<path>],
713 [Use udis86 external x86 disassembler library]),
715 AC_SUBST(USE_UDIS86, [1])
718 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
720 AC_CHECK_LIB(udis86, ud_init, [], [
721 echo "Error! You need to have libudis86 around."
725 AC_SUBST(USE_UDIS86, [0]))
726 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
727 [Define if use udis86 library])
729 dnl===-----------------------------------------------------------------------===
731 dnl=== SECTION 6: Check for header files
733 dnl===-----------------------------------------------------------------------===
735 dnl First, use autoconf provided macros for specific headers that we need
736 dnl We don't check for ancient stuff or things that are guaranteed to be there
737 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
738 dnl Generally we're looking for POSIX headers.
740 AC_HEADER_MMAP_ANONYMOUS
746 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
747 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
748 AC_CHECK_HEADERS([windows.h])
749 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
750 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
751 if test "$ENABLE_THREADS" -eq 1 ; then
752 AC_CHECK_HEADERS(pthread.h,
753 AC_SUBST(HAVE_PTHREAD, 1),
754 AC_SUBST(HAVE_PTHREAD, 0))
756 AC_SUBST(HAVE_PTHREAD, 0)
759 dnl===-----------------------------------------------------------------------===
761 dnl=== SECTION 7: Check for types and structures
763 dnl===-----------------------------------------------------------------------===
770 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
771 AC_CHECK_TYPES([uint64_t],,
772 AC_CHECK_TYPES([u_int64_t],,
773 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
775 dnl===-----------------------------------------------------------------------===
777 dnl=== SECTION 8: Check for specific functions needed
779 dnl===-----------------------------------------------------------------------===
781 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
782 AC_CHECK_FUNCS([powf fmodf strtof round ])
783 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
784 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
785 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
786 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
787 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
792 dnl Check for variations in the Standard C++ library and STL. These macros are
793 dnl provided by LLVM in the autoconf/m4 directory.
796 AC_CXX_HAVE_STD_ITERATOR
797 AC_CXX_HAVE_BI_ITERATOR
798 AC_CXX_HAVE_FWD_ITERATOR
802 dnl Check for mmap support.We also need to know if /dev/zero is required to
803 dnl be opened for allocating RWX memory.
804 dnl Make sure we aren't attempting to configure for an unknown system
805 if test "$llvm_cv_platform_type" = "Unix" ; then
808 AC_NEED_DEV_ZERO_FOR_MMAP
810 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
812 AC_MSG_WARN([mmap() of a fixed address required but not supported])
814 if test "$ac_cv_func_mmap_file" = "no"
816 AC_MSG_WARN([mmap() of files required but not found])
820 dnl===-----------------------------------------------------------------------===
822 dnl=== SECTION 9: Additional checks, variables, etc.
824 dnl===-----------------------------------------------------------------------===
826 dnl Check, whether __dso_handle is present
827 AC_CHECK_FUNCS([__dso_handle])
829 dnl See if the llvm-gcc executable can compile to LLVM assembly
830 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
831 [llvm_cv_llvmgcc_sanity="no"
832 if test -x "$LLVMGCC" ; then
833 cp /dev/null conftest.c
834 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
835 grep 'target datalayout =' > /dev/null 2>&1
836 if test $? -eq 0 ; then
837 llvm_cv_llvmgcc_sanity="yes"
842 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
843 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
844 AC_MSG_CHECKING([llvm-gcc component support])
845 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
846 AC_SUBST(LLVMCC1,$llvmcc1path)
847 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
848 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
849 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
850 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
851 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
852 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
853 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
854 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
855 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
856 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
857 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
858 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
862 dnl Propagate the shared library extension that the libltdl checks did to
863 dnl the Makefiles so we can use it there too
864 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
866 # Translate the various configuration directories and other basic
867 # information into substitutions that will end up in Makefile.config.in
868 # that these configured values can be used by the makefiles
869 if test "${prefix}" = "NONE" ; then
872 eval LLVM_PREFIX="${prefix}";
873 eval LLVM_BINDIR="${prefix}/bin";
874 eval LLVM_LIBDIR="${prefix}/lib";
875 eval LLVM_DATADIR="${prefix}/share/llvm";
876 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
877 eval LLVM_ETCDIR="${prefix}/etc/llvm";
878 eval LLVM_INCLUDEDIR="${prefix}/include";
879 eval LLVM_INFODIR="${prefix}/info";
880 eval LLVM_MANDIR="${prefix}/man";
881 LLVM_CONFIGTIME=`date`
882 AC_SUBST(LLVM_PREFIX)
883 AC_SUBST(LLVM_BINDIR)
884 AC_SUBST(LLVM_LIBDIR)
885 AC_SUBST(LLVM_DATADIR)
886 AC_SUBST(LLVM_DOCSDIR)
887 AC_SUBST(LLVM_ETCDIR)
888 AC_SUBST(LLVM_INCLUDEDIR)
889 AC_SUBST(LLVM_INFODIR)
890 AC_SUBST(LLVM_MANDIR)
891 AC_SUBST(LLVM_CONFIGTIME)
893 # Place the various directores into the config.h file as #defines so that we
894 # can know about the installation paths within LLVM.
895 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
896 [Installation prefix directory])
897 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
898 [Installation directory for binary executables])
899 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
900 [Installation directory for libraries])
901 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
902 [Installation directory for data files])
903 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
904 [Installation directory for documentation])
905 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
906 [Installation directory for config files])
907 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
908 [Installation directory for include files])
909 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
910 [Installation directory for .info files])
911 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
912 [Installation directory for man pages])
913 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
914 [Time at which LLVM was configured])
915 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
916 [Host triple we were built on])
918 # Determine which bindings to build.
919 if test "$BINDINGS_TO_BUILD" = auto ; then
921 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
922 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
925 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
927 # This isn't really configurey, but it avoids having to repeat the list in
929 AC_SUBST(ALL_BINDINGS,ocaml)
931 # Do any work necessary to ensure that bindings have what they need.
932 binding_prereqs_failed=0
933 for a_binding in $BINDINGS_TO_BUILD ; do
936 if test "x$OCAMLC" = x ; then
937 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
938 binding_prereqs_failed=1
940 if test "x$OCAMLDEP" = x ; then
941 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
942 binding_prereqs_failed=1
944 if test "x$OCAMLOPT" = x ; then
945 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
946 dnl ocamlopt is optional!
948 if test "x$with_ocaml_libdir" != xauto ; then
949 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
951 ocaml_stdlib="`"$OCAMLC" -where`"
952 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
954 # ocaml stdlib is beneath our prefix; use stdlib
955 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
957 # ocaml stdlib is outside our prefix; use libdir/ocaml
958 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
964 if test "$binding_prereqs_failed" = 1 ; then
965 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
969 dnl===-----------------------------------------------------------------------===
971 dnl=== SECTION 10: Specify the output files and generate it
973 dnl===-----------------------------------------------------------------------===
975 dnl Configure header files
976 dnl WARNING: dnl If you add or remove any of the following config headers, then
977 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
978 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
979 dnl files can be updated automatically when their *.in sources change.
980 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
981 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
982 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
983 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
984 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
986 dnl Configure the makefile's configuration data
987 AC_CONFIG_FILES([Makefile.config])
989 dnl Configure the RPM spec file for LLVM
990 AC_CONFIG_FILES([llvm.spec])
992 dnl Configure doxygen's configuration file
993 AC_CONFIG_FILES([docs/doxygen.cfg])
995 dnl Do the first stage of configuration for llvm-config.in.
996 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
998 dnl Do special configuration of Makefiles
999 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1000 AC_CONFIG_MAKEFILE(Makefile)
1001 AC_CONFIG_MAKEFILE(Makefile.common)
1002 AC_CONFIG_MAKEFILE(examples/Makefile)
1003 AC_CONFIG_MAKEFILE(lib/Makefile)
1004 AC_CONFIG_MAKEFILE(runtime/Makefile)
1005 AC_CONFIG_MAKEFILE(test/Makefile)
1006 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1007 AC_CONFIG_MAKEFILE(tools/Makefile)
1008 AC_CONFIG_MAKEFILE(utils/Makefile)
1009 AC_CONFIG_MAKEFILE(projects/Makefile)
1010 AC_CONFIG_MAKEFILE(bindings/Makefile)
1011 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1013 dnl Finally, crank out the output