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 Allow specific bindings to be specified for building (or not)
436 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
437 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
441 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
442 all ) BINDINGS_TO_BUILD="ocaml" ;;
443 none | no) BINDINGS_TO_BUILD="" ;;
444 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
446 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
447 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
453 dnl Allow the ocaml libdir to be overridden. This could go in a configure
454 dnl script for bindings/ocaml/configure, except that its auto value depends on
455 dnl OCAMLC, which is found here to support tests.
456 AC_ARG_WITH([ocaml-libdir],
457 [AS_HELP_STRING([--with-ocaml-libdir],
458 [Specify install location for ocaml bindings (default is stdlib)])],
462 auto) with_ocaml_libdir="$withval" ;;
463 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
464 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
467 dnl===-----------------------------------------------------------------------===
469 dnl=== SECTION 4: Check for programs we need and that they are the right version
471 dnl===-----------------------------------------------------------------------===
473 dnl Check for compilation tools
483 dnl Check for the tools that the makefiles require
486 AC_PATH_PROG(CMP, [cmp], [cmp])
487 AC_PATH_PROG(CP, [cp], [cp])
488 AC_PATH_PROG(DATE, [date], [date])
489 AC_PATH_PROG(FIND, [find], [find])
490 AC_PATH_PROG(GREP, [grep], [grep])
491 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
492 AC_PATH_PROG(MV, [mv], [mv])
494 AC_PATH_PROG(RM, [rm], [rm])
495 AC_PATH_PROG(SED, [sed], [sed])
496 AC_PATH_PROG(TAR, [tar], [gtar])
497 AC_PATH_PROG(BINPWD,[pwd], [pwd])
499 dnl Looking for misc. graph plotting software
500 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
501 if test "$GRAPHVIZ" != "echo Graphviz" ; then
502 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
503 dnl If we're targeting for mingw we should emit windows paths, not msys
504 if test "$llvm_cv_os_type" = "MingW" ; then
505 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
507 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
508 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
510 AC_PATH_PROG(DOT, [dot], [echo dot])
511 if test "$DOT" != "echo dot" ; then
512 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
513 dnl If we're targeting for mingw we should emit windows paths, not msys
514 if test "$llvm_cv_os_type" = "MingW" ; then
515 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
517 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
518 [Define to path to dot program if found or 'echo dot' otherwise])
520 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
521 if test "$GV" != "echo gv" ; then
522 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
523 dnl If we're targeting for mingw we should emit windows paths, not msys
524 if test "$llvm_cv_os_type" = "MingW" ; then
525 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
527 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
528 [Define to path to gv program if found or 'echo gv' otherwise])
530 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
531 if test "$DOTTY" != "echo dotty" ; then
532 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
533 dnl If we're targeting for mingw we should emit windows paths, not msys
534 if test "$llvm_cv_os_type" = "MingW" ; then
535 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
537 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
538 [Define to path to dotty program if found or 'echo dotty' otherwise])
541 dnl Look for a sufficiently recent version of Perl.
542 LLVM_PROG_PERL([5.006])
544 if test x"$PERL" = xnone; then
545 AC_SUBST(HAVE_PERL,0)
546 AC_MSG_ERROR([perl is required but was not found, please install it])
548 AC_SUBST(HAVE_PERL,1)
551 dnl Find the install program
554 dnl Checks for documentation and testing tools that we can do without. If these
555 dnl are not found then they are set to "true" which always succeeds but does
556 dnl nothing. This just lets the build output show that we could have done
557 dnl something if the tool was available.
558 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
559 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
560 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
561 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
562 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
563 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
564 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
566 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
567 AC_PATH_PROG(OCAMLC,[ocamlc],[echo "Skipped: ocamlc not found"])
568 AC_PATH_PROG(OCAMLOPT,[ocamlopt],[echo "Skipped: ocamlopt not found"])
569 AC_PATH_PROG(OCAMLDEP,[ocamldep],[echo "Skipped: ocamldep not found"])
571 dnl Determine if the linker supports the -R option.
574 dnl Check for libtool and the library that has dlopen function (which must come
575 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
581 if test "$lt_cv_dlopen_self" = "yes" ; then
582 AC_DEFINE([CAN_DLOPEN_SELF],[1],
583 [Define if dlopen(0) will open the symbols of the program])
586 if test "$WITH_LLVMGCCDIR" = "default" ; then
587 LLVMGCC="llvm-gcc${EXEEXT}"
588 LLVMGXX="llvm-g++${EXEEXT}"
589 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
590 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
592 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
593 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
594 AC_SUBST(LLVMGCC,$LLVMGCC)
595 AC_SUBST(LLVMGXX,$LLVMGXX)
598 AC_MSG_CHECKING([tool compatibility])
600 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
601 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
602 dnl to support those options.
603 dnl "icc" emits gcc signatures
604 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
616 if test "$GCC" != "yes" && test "$ICC" != "yes"
618 AC_MSG_ERROR([gcc|icc required but not found])
621 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
622 if test "$GXX" != "yes" && test "$IXX" != "yes"
624 AC_MSG_ERROR([g++|icc required but not found])
627 dnl Verify that GCC is version 3.0 or higher
628 if test "$GCC" = "yes"
630 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
631 if test "$gccmajor" -lt "3"
633 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
637 dnl Check for GNU Make. We use its extensions, so don't build without it
638 if test -z "$llvm_cv_gnu_make_command"
640 AC_MSG_ERROR([GNU Make required but not found])
643 dnl Tool compatibility is okay if we make it here.
646 dnl===-----------------------------------------------------------------------===
648 dnl=== SECTION 5: Check for libraries
650 dnl===-----------------------------------------------------------------------===
652 dnl libelf is for sparc only; we can ignore it if we don't have it
653 AC_CHECK_LIB(elf, elf_begin)
655 if test "$llvm_cv_os_type" = "MingW" ; then
656 AC_CHECK_LIB(imagehlp, main)
657 AC_CHECK_LIB(psapi, main)
660 dnl lt_dlopen may be required for plugin support.
661 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
662 [Define if lt_dlopen() is available on this platform]),
663 AC_MSG_WARN([lt_dlopen() not found - plugin support might
666 dnl dlopen() is required for plugin support.
667 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
668 [Define if dlopen() is available on this platform.]),
669 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
671 dnl mallinfo is optional; the code can compile (minus features) without it
672 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
673 [Define if mallinfo() is available on this platform.]))
675 dnl pthread locking functions are optional - but llvm will not be thread-safe
677 if test "$ENABLE_THREADS" -eq 1 ; then
678 AC_CHECK_LIB(pthread,pthread_mutex_init)
679 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
680 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
681 [Have pthread_mutex_lock]))
684 dnl Allow extra x86-disassembler library
686 AS_HELP_STRING([--with-udis86=<path>],
687 [Use udis86 external x86 disassembler library]),
689 AC_SUBST(USE_UDIS86, [1])
692 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
694 AC_CHECK_LIB(udis86, ud_init, [], [
695 echo "Error! You need to have libudis86 around."
699 AC_SUBST(USE_UDIS86, [0]))
700 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
701 [Define if use udis86 library])
703 dnl===-----------------------------------------------------------------------===
705 dnl=== SECTION 6: Check for header files
707 dnl===-----------------------------------------------------------------------===
709 dnl First, use autoconf provided macros for specific headers that we need
710 dnl We don't check for ancient stuff or things that are guaranteed to be there
711 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
712 dnl Generally we're looking for POSIX headers.
714 AC_HEADER_MMAP_ANONYMOUS
720 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
721 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
722 AC_CHECK_HEADERS([windows.h])
723 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
724 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
725 if test "$ENABLE_THREADS" -eq 1 ; then
726 AC_CHECK_HEADERS(pthread.h,
727 AC_SUBST(HAVE_PTHREAD, 1),
728 AC_SUBST(HAVE_PTHREAD, 0))
730 AC_SUBST(HAVE_PTHREAD, 0)
733 dnl===-----------------------------------------------------------------------===
735 dnl=== SECTION 7: Check for types and structures
737 dnl===-----------------------------------------------------------------------===
744 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
745 AC_CHECK_TYPES([uint64_t],,
746 AC_CHECK_TYPES([u_int64_t],,
747 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
749 dnl===-----------------------------------------------------------------------===
751 dnl=== SECTION 8: Check for specific functions needed
753 dnl===-----------------------------------------------------------------------===
755 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
756 AC_CHECK_FUNCS([powf fmodf strtof round ])
757 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
758 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
759 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
760 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
761 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
766 dnl Check for variations in the Standard C++ library and STL. These macros are
767 dnl provided by LLVM in the autoconf/m4 directory.
770 AC_CXX_HAVE_STD_ITERATOR
771 AC_CXX_HAVE_BI_ITERATOR
772 AC_CXX_HAVE_FWD_ITERATOR
776 dnl Check for mmap support.We also need to know if /dev/zero is required to
777 dnl be opened for allocating RWX memory.
778 dnl Make sure we aren't attempting to configure for an unknown system
779 if test "$llvm_cv_platform_type" = "Unix" ; then
782 AC_NEED_DEV_ZERO_FOR_MMAP
784 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
786 AC_MSG_WARN([mmap() of a fixed address required but not supported])
788 if test "$ac_cv_func_mmap_file" = "no"
790 AC_MSG_WARN([mmap() of files required but not found])
794 dnl===-----------------------------------------------------------------------===
796 dnl=== SECTION 9: Additional checks, variables, etc.
798 dnl===-----------------------------------------------------------------------===
800 dnl Check, whether __dso_handle is present
801 AC_CHECK_FUNCS([__dso_handle])
803 dnl See if the llvm-gcc executable can compile to LLVM assembly
804 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
805 [llvm_cv_llvmgcc_sanity="no"
806 if test -x "$LLVMGCC" ; then
807 cp /dev/null conftest.c
808 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
809 grep 'target datalayout =' > /dev/null 2>&1
810 if test $? -eq 0 ; then
811 llvm_cv_llvmgcc_sanity="yes"
816 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
817 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
818 AC_MSG_CHECKING([llvm-gcc component support])
819 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
820 AC_SUBST(LLVMCC1,$llvmcc1path)
821 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
822 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
823 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
824 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
825 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
826 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
827 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
828 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
829 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
830 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
831 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
832 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
836 dnl Propagate the shared library extension that the libltdl checks did to
837 dnl the Makefiles so we can use it there too
838 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
840 # Translate the various configuration directories and other basic
841 # information into substitutions that will end up in Makefile.config.in
842 # that these configured values can be used by the makefiles
843 if test "${prefix}" = "NONE" ; then
846 eval LLVM_PREFIX="${prefix}";
847 eval LLVM_BINDIR="${prefix}/bin";
848 eval LLVM_LIBDIR="${prefix}/lib";
849 eval LLVM_DATADIR="${prefix}/share/llvm";
850 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
851 eval LLVM_ETCDIR="${prefix}/etc/llvm";
852 eval LLVM_INCLUDEDIR="${prefix}/include";
853 eval LLVM_INFODIR="${prefix}/info";
854 eval LLVM_MANDIR="${prefix}/man";
855 LLVM_CONFIGTIME=`date`
856 AC_SUBST(LLVM_PREFIX)
857 AC_SUBST(LLVM_BINDIR)
858 AC_SUBST(LLVM_LIBDIR)
859 AC_SUBST(LLVM_DATADIR)
860 AC_SUBST(LLVM_DOCSDIR)
861 AC_SUBST(LLVM_ETCDIR)
862 AC_SUBST(LLVM_INCLUDEDIR)
863 AC_SUBST(LLVM_INFODIR)
864 AC_SUBST(LLVM_MANDIR)
865 AC_SUBST(LLVM_CONFIGTIME)
867 # Place the various directores into the config.h file as #defines so that we
868 # can know about the installation paths within LLVM.
869 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
870 [Installation prefix directory])
871 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
872 [Installation directory for binary executables])
873 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
874 [Installation directory for libraries])
875 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
876 [Installation directory for data files])
877 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
878 [Installation directory for documentation])
879 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
880 [Installation directory for config files])
881 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
882 [Installation directory for include files])
883 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
884 [Installation directory for .info files])
885 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
886 [Installation directory for man pages])
887 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
888 [Time at which LLVM was configured])
890 # Determine which bindings to build.
891 if test "$BINDINGS_TO_BUILD" = auto ; then
893 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
894 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
897 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
899 # This isn't really configurey, but it avoids having to repeat the list in
901 AC_SUBST(ALL_BINDINGS,ocaml)
903 # Do any work necessary to ensure that bindings have what they need.
904 binding_prereqs_failed=0
905 for a_binding in $BINDINGS_TO_BUILD ; do
908 if test "x$OCAMLC" = x ; then
909 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
910 binding_prereqs_failed=1
912 if test "x$OCAMLDEP" = x ; then
913 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
914 binding_prereqs_failed=1
916 if test "x$OCAMLOPT" = x ; then
917 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
918 dnl ocamlopt is optional!
920 if test "x$with_ocaml_libdir" != xauto ; then
921 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
923 ocaml_stdlib="`"$OCAMLC" -where`"
924 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
926 # ocaml stdlib is beneath our prefix; use stdlib
927 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
929 # ocaml stdlib is outside our prefix; use libdir/ocaml
930 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
936 if test "$binding_prereqs_failed" = 1 ; then
937 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
941 dnl===-----------------------------------------------------------------------===
943 dnl=== SECTION 10: Specify the output files and generate it
945 dnl===-----------------------------------------------------------------------===
947 dnl Configure header files
948 dnl WARNING: dnl If you add or remove any of the following config headers, then
949 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
950 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
951 dnl files can be updated automatically when their *.in sources change.
952 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
953 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
954 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
955 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
956 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
958 dnl Configure the makefile's configuration data
959 AC_CONFIG_FILES([Makefile.config])
961 dnl Configure the RPM spec file for LLVM
962 AC_CONFIG_FILES([llvm.spec])
964 dnl Configure doxygen's configuration file
965 AC_CONFIG_FILES([docs/doxygen.cfg])
967 dnl Do the first stage of configuration for llvm-config.in.
968 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
970 dnl Do special configuration of Makefiles
971 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
972 AC_CONFIG_MAKEFILE(Makefile)
973 AC_CONFIG_MAKEFILE(Makefile.common)
974 AC_CONFIG_MAKEFILE(examples/Makefile)
975 AC_CONFIG_MAKEFILE(lib/Makefile)
976 AC_CONFIG_MAKEFILE(runtime/Makefile)
977 AC_CONFIG_MAKEFILE(test/Makefile)
978 AC_CONFIG_MAKEFILE(test/Makefile.tests)
979 AC_CONFIG_MAKEFILE(tools/Makefile)
980 AC_CONFIG_MAKEFILE(utils/Makefile)
981 AC_CONFIG_MAKEFILE(projects/Makefile)
982 AC_CONFIG_MAKEFILE(bindings/Makefile)
983 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
985 dnl Finally, crank out the output