1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl 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]],[[2.4svn]],[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) 2003-2008 University of Illinois at Urbana-Champaign."])
39 AC_COPYRIGHT([Copyright (c) 2003-2008 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_no_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 $llvm_cv_platform_type in
195 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
196 AC_SUBST(LLVM_ON_UNIX,[1])
197 AC_SUBST(LLVM_ON_WIN32,[0])
200 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
201 AC_SUBST(LLVM_ON_UNIX,[0])
202 AC_SUBST(LLVM_ON_WIN32,[1])
206 dnl Determine what our target architecture is and configure accordingly.
207 dnl This will allow Makefiles to make a distinction between the hardware and
209 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
211 i?86-*) llvm_cv_target_arch="x86" ;;
212 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
213 sparc*-*) llvm_cv_target_arch="Sparc" ;;
214 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
215 alpha*-*) llvm_cv_target_arch="Alpha" ;;
216 ia64-*) llvm_cv_target_arch="IA64" ;;
217 arm-*) llvm_cv_target_arch="ARM" ;;
218 mips-*) llvm_cv_target_arch="Mips" ;;
219 pic16-*) llvm_cv_target_arch="PIC16" ;;
220 *) llvm_cv_target_arch="Unknown" ;;
223 if test "$llvm_cv_target_arch" = "Unknown" ; then
224 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
227 dnl Define a substitution, ARCH, for the target architecture
228 AC_SUBST(ARCH,$llvm_cv_target_arch)
230 dnl Check for the endianness of the target
231 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
233 dnl Check for build platform executable suffix if we're crosscompiling
234 if test "$cross_compiling" = yes; then
235 AC_SUBST(LLVM_CROSS_COMPILING, [1])
238 AC_SUBST(LLVM_CROSS_COMPILING, [0])
241 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
242 dnl build is being done from a checkout. This sets up several defaults for the
243 dnl command line switches. When we build with a CVS directory, we get a
244 dnl debug with assertions turned on. Without, we assume a source release and we
245 dnl get an optimized build without assertions. See --enable-optimized and
246 dnl --enable-assertions below
247 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
250 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
256 dnl===-----------------------------------------------------------------------===
258 dnl=== SECTION 3: Command line arguments for the configure script.
260 dnl===-----------------------------------------------------------------------===
262 dnl --enable-optimized : check whether they want to do an optimized build:
263 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
264 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
265 if test ${enableval} = "no" ; then
266 AC_SUBST(ENABLE_OPTIMIZED,[[]])
268 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
271 dnl --enable-assertions : check whether they want to turn on assertions or not:
272 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
273 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
274 if test ${enableval} = "yes" ; then
275 AC_SUBST(DISABLE_ASSERTIONS,[[]])
277 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
280 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
281 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
282 [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
283 if test ${enableval} = "yes" ; then
284 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
285 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
287 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
288 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
291 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
292 AC_ARG_ENABLE(debug-runtime,
293 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
294 if test ${enableval} = "no" ; then
295 AC_SUBST(DEBUG_RUNTIME,[[]])
297 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
300 dnl --enable-jit: check whether they want to enable the jit
302 AS_HELP_STRING(--enable-jit,
303 [Enable Just In Time Compiling (default is YES)]),,
305 if test ${enableval} = "no"
309 case "$llvm_cv_target_arch" in
310 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
311 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
312 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
313 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
314 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
315 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
316 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
317 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
318 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
319 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
323 dnl Allow enablement of doxygen generated documentation
324 AC_ARG_ENABLE(doxygen,
325 AS_HELP_STRING([--enable-doxygen],
326 [Build doxygen documentation (default is NO)]),,
329 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
330 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
331 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
332 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
335 dnl Allow disablement of threads
336 AC_ARG_ENABLE(threads,
337 AS_HELP_STRING([--enable-threads],
338 [Use threads if available (default is YES)]),,
341 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
342 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
343 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
344 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
346 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
348 dnl Allow building with position independent code
350 AS_HELP_STRING([--enable-pic],
351 [Build LLVM with Position Independent Code (default is NO)]),,
354 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
355 no) AC_SUBST(ENABLE_PIC,[0]) ;;
356 default) AC_SUBST(ENABLE_PIC,[0]) ;;
357 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
359 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
360 [Define if position independent code is enabled])
362 dnl Allow specific targets to be specified for building (or not)
364 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
365 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
368 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips CellSPU PIC16 CBackend MSIL CppBackend" ;;
370 case "$llvm_cv_target_arch" in
371 x86) TARGETS_TO_BUILD="X86" ;;
372 x86_64) TARGETS_TO_BUILD="X86" ;;
373 Sparc) TARGETS_TO_BUILD="Sparc" ;;
374 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
375 Alpha) TARGETS_TO_BUILD="Alpha" ;;
376 IA64) TARGETS_TO_BUILD="IA64" ;;
377 ARM) TARGETS_TO_BUILD="ARM" ;;
378 Mips) TARGETS_TO_BUILD="Mips" ;;
379 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;;
380 PIC16) TARGETS_TO_BUILD="PIC16" ;;
381 *) AC_MSG_ERROR([Can not set target to build]) ;;
384 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
386 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
387 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
388 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
389 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
390 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
391 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
392 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
393 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
394 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
395 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
396 cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
397 msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
398 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
399 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
404 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
406 dnl Prevent the CBackend from using printf("%a") for floating point so older
407 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
408 dnl can still compile the CBE's output
409 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
410 [Enable C Backend output with hex floating point via %a (default is YES)]),,
413 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
414 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
415 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
416 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
418 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
419 [Define if CBE is enabled for printf %a output])
421 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
422 AC_ARG_WITH(llvmgccdir,
423 AS_HELP_STRING([--with-llvmgccdir],
424 [Specify location of llvm-gcc install dir (default searches PATH)]),,
427 default) WITH_LLVMGCCDIR=default ;;
428 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
429 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
432 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
434 AS_HELP_STRING([--with-llvmgcc],
435 [Specify location of llvm-gcc driver (default searches PATH)]),
436 LLVMGCC=$with_llvmgcc
439 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
441 AS_HELP_STRING([--with-llvmgxx],
442 [Specify location of llvm-g++ driver (default searches PATH)]),
443 LLVMGXX=$with_llvmgxx
446 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
447 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
450 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
451 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
454 dnl Specify extra build options
455 AC_ARG_WITH(extra-options,
456 AS_HELP_STRING([--with-extra-options],
457 [Specify addtional options to compile LLVM with]),,
460 default) EXTRA_OPTIONS= ;;
461 *) EXTRA_OPTIONS=$withval ;;
463 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
465 dnl Allow specific bindings to be specified for building (or not)
466 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
467 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
471 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
472 all ) BINDINGS_TO_BUILD="ocaml" ;;
473 none | no) BINDINGS_TO_BUILD="" ;;
474 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
476 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
477 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
483 dnl Allow the ocaml libdir to be overridden. This could go in a configure
484 dnl script for bindings/ocaml/configure, except that its auto value depends on
485 dnl OCAMLC, which is found here to support tests.
486 AC_ARG_WITH([ocaml-libdir],
487 [AS_HELP_STRING([--with-ocaml-libdir],
488 [Specify install location for ocaml bindings (default is stdlib)])],
492 auto) with_ocaml_libdir="$withval" ;;
493 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
494 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
497 dnl===-----------------------------------------------------------------------===
499 dnl=== SECTION 4: Check for programs we need and that they are the right version
501 dnl===-----------------------------------------------------------------------===
503 dnl Check for compilation tools
513 dnl Check for the tools that the makefiles require
516 AC_PATH_PROG(CMP, [cmp], [cmp])
517 AC_PATH_PROG(CP, [cp], [cp])
518 AC_PATH_PROG(DATE, [date], [date])
519 AC_PATH_PROG(FIND, [find], [find])
520 AC_PATH_PROG(GREP, [grep], [grep])
521 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
522 AC_PATH_PROG(MV, [mv], [mv])
524 AC_PATH_PROG(RM, [rm], [rm])
525 AC_PATH_PROG(SED, [sed], [sed])
526 AC_PATH_PROG(TAR, [tar], [gtar])
527 AC_PATH_PROG(BINPWD,[pwd], [pwd])
529 dnl Looking for misc. graph plotting software
530 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
531 if test "$GRAPHVIZ" != "echo Graphviz" ; then
532 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz 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 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
537 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
538 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
540 AC_PATH_PROG(DOT, [dot], [echo dot])
541 if test "$DOT" != "echo dot" ; then
542 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
543 dnl If we're targeting for mingw we should emit windows paths, not msys
544 if test "$llvm_cv_os_type" = "MingW" ; then
545 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
547 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
548 [Define to path to dot program if found or 'echo dot' otherwise])
550 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
551 if test "$GV" != "echo gv" ; then
552 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
553 dnl If we're targeting for mingw we should emit windows paths, not msys
554 if test "$llvm_cv_os_type" = "MingW" ; then
555 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
557 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
558 [Define to path to gv program if found or 'echo gv' otherwise])
560 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
561 if test "$DOTTY" != "echo dotty" ; then
562 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
563 dnl If we're targeting for mingw we should emit windows paths, not msys
564 if test "$llvm_cv_os_type" = "MingW" ; then
565 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
567 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
568 [Define to path to dotty program if found or 'echo dotty' otherwise])
571 dnl Look for a sufficiently recent version of Perl.
572 LLVM_PROG_PERL([5.006])
574 if test x"$PERL" = xnone; then
575 AC_SUBST(HAVE_PERL,0)
576 AC_MSG_ERROR([perl is required but was not found, please install it])
578 AC_SUBST(HAVE_PERL,1)
581 dnl Find the install program
584 dnl Checks for documentation and testing tools that we can do without. If these
585 dnl are not found then they are set to "true" which always succeeds but does
586 dnl nothing. This just lets the build output show that we could have done
587 dnl something if the tool was available.
588 AC_PATH_PROG(BZIP2, [bzip2])
589 AC_PATH_PROG(DOXYGEN, [doxygen])
590 AC_PATH_PROG(GROFF, [groff])
591 AC_PATH_PROG(GZIP, [gzip])
592 AC_PATH_PROG(POD2HTML, [pod2html])
593 AC_PATH_PROG(POD2MAN, [pod2man])
594 AC_PATH_PROG(RUNTEST, [runtest])
596 AC_PATH_PROG(ZIP, [zip])
597 AC_PATH_PROGS(OCAMLC, [ocamlc.opt ocamlc])
598 AC_PATH_PROGS(OCAMLOPT, [ocamlopt.opt ocamlopt])
599 AC_PATH_PROGS(OCAMLDEP, [ocamldep.opt ocamldep])
600 AC_PATH_PROGS(OCAMLDOC, [ocamldoc.opt ocamldoc])
602 dnl Determine if the linker supports the -R option.
605 dnl Check for libtool and the library that has dlopen function (which must come
606 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
612 if test "$lt_cv_dlopen_self" = "yes" ; then
613 AC_DEFINE([CAN_DLOPEN_SELF],[1],
614 [Define if dlopen(0) will open the symbols of the program])
617 if test "$WITH_LLVMGCCDIR" = "default" ; then
618 LLVMGCC="llvm-gcc${EXEEXT}"
619 LLVMGXX="llvm-g++${EXEEXT}"
620 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
621 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
623 if test -z "$LLVMGCC"; then
624 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
626 if test -z "$LLVMGXX"; then
627 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
629 AC_SUBST(LLVMGCC,$LLVMGCC)
630 AC_SUBST(LLVMGXX,$LLVMGXX)
633 AC_MSG_CHECKING([tool compatibility])
635 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
636 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
637 dnl to support those options.
638 dnl "icc" emits gcc signatures
639 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
651 if test "$GCC" != "yes" && test "$ICC" != "yes"
653 AC_MSG_ERROR([gcc|icc required but not found])
656 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
657 if test "$GXX" != "yes" && test "$IXX" != "yes"
659 AC_MSG_ERROR([g++|icc required but not found])
662 dnl Verify that GCC is version 3.0 or higher
663 if test "$GCC" = "yes"
665 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
666 #error Unsupported GCC version
668 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
671 dnl Check for GNU Make. We use its extensions, so don't build without it
672 if test -z "$llvm_cv_gnu_make_command"
674 AC_MSG_ERROR([GNU Make required but not found])
677 dnl Tool compatibility is okay if we make it here.
680 dnl===-----------------------------------------------------------------------===
682 dnl=== SECTION 5: Check for libraries
684 dnl===-----------------------------------------------------------------------===
686 dnl libelf is for sparc only; we can ignore it if we don't have it
687 AC_CHECK_LIB(elf, elf_begin)
689 if test "$llvm_cv_os_type" = "MingW" ; then
690 AC_CHECK_LIB(imagehlp, main)
691 AC_CHECK_LIB(psapi, main)
694 dnl dlopen() is required for plugin support.
695 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
696 [Define if dlopen() is available on this platform.]),
697 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
699 dnl mallinfo is optional; the code can compile (minus features) without it
700 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
701 [Define if mallinfo() is available on this platform.]))
703 dnl pthread locking functions are optional - but llvm will not be thread-safe
705 if test "$ENABLE_THREADS" -eq 1 ; then
706 AC_CHECK_LIB(pthread,pthread_mutex_init)
707 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
708 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
709 [Have pthread_mutex_lock]))
712 dnl Allow extra x86-disassembler library
714 AS_HELP_STRING([--with-udis86=<path>],
715 [Use udis86 external x86 disassembler library]),
717 AC_SUBST(USE_UDIS86, [1])
720 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
722 AC_CHECK_LIB(udis86, ud_init, [], [
723 echo "Error! You need to have libudis86 around."
727 AC_SUBST(USE_UDIS86, [0]))
728 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
729 [Define if use udis86 library])
731 dnl===-----------------------------------------------------------------------===
733 dnl=== SECTION 6: Check for header files
735 dnl===-----------------------------------------------------------------------===
737 dnl First, use autoconf provided macros for specific headers that we need
738 dnl We don't check for ancient stuff or things that are guaranteed to be there
739 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
740 dnl Generally we're looking for POSIX headers.
742 AC_HEADER_MMAP_ANONYMOUS
748 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
749 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
750 AC_CHECK_HEADERS([windows.h])
751 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
752 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
753 if test "$ENABLE_THREADS" -eq 1 ; then
754 AC_CHECK_HEADERS(pthread.h,
755 AC_SUBST(HAVE_PTHREAD, 1),
756 AC_SUBST(HAVE_PTHREAD, 0))
758 AC_SUBST(HAVE_PTHREAD, 0)
761 dnl===-----------------------------------------------------------------------===
763 dnl=== SECTION 7: Check for types and structures
765 dnl===-----------------------------------------------------------------------===
772 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
773 AC_CHECK_TYPES([uint64_t],,
774 AC_CHECK_TYPES([u_int64_t],,
775 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
777 dnl===-----------------------------------------------------------------------===
779 dnl=== SECTION 8: Check for specific functions needed
781 dnl===-----------------------------------------------------------------------===
783 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
784 AC_CHECK_FUNCS([powf fmodf strtof round ])
785 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
786 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
787 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
788 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
789 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
794 dnl Check for variations in the Standard C++ library and STL. These macros are
795 dnl provided by LLVM in the autoconf/m4 directory.
798 AC_CXX_HAVE_STD_ITERATOR
799 AC_CXX_HAVE_BI_ITERATOR
800 AC_CXX_HAVE_FWD_ITERATOR
804 dnl Check for mmap support.We also need to know if /dev/zero is required to
805 dnl be opened for allocating RWX memory.
806 dnl Make sure we aren't attempting to configure for an unknown system
807 if test "$llvm_cv_platform_type" = "Unix" ; then
810 AC_NEED_DEV_ZERO_FOR_MMAP
812 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
814 AC_MSG_WARN([mmap() of a fixed address required but not supported])
816 if test "$ac_cv_func_mmap_file" = "no"
818 AC_MSG_WARN([mmap() of files required but not found])
822 dnl===-----------------------------------------------------------------------===
824 dnl=== SECTION 9: Additional checks, variables, etc.
826 dnl===-----------------------------------------------------------------------===
828 dnl Check, whether __dso_handle is present
829 AC_CHECK_FUNCS([__dso_handle])
831 dnl See if the llvm-gcc executable can compile to LLVM assembly
832 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
833 [llvm_cv_llvmgcc_sanity="no"
834 if test -x "$LLVMGCC" ; then
835 cp /dev/null conftest.c
836 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
837 grep 'target datalayout =' > /dev/null 2>&1
838 if test $? -eq 0 ; then
839 llvm_cv_llvmgcc_sanity="yes"
844 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
845 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
846 AC_MSG_CHECKING([llvm-gcc component support])
847 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
848 AC_SUBST(LLVMCC1,$llvmcc1path)
849 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
850 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
851 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
852 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
853 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
854 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
855 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
856 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
857 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
858 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
859 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
860 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
864 dnl Propagate the shared library extension that the libltdl checks did to
865 dnl the Makefiles so we can use it there too
866 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
868 # Translate the various configuration directories and other basic
869 # information into substitutions that will end up in Makefile.config.in
870 # that these configured values can be used by the makefiles
871 if test "${prefix}" = "NONE" ; then
874 eval LLVM_PREFIX="${prefix}";
875 eval LLVM_BINDIR="${prefix}/bin";
876 eval LLVM_LIBDIR="${prefix}/lib";
877 eval LLVM_DATADIR="${prefix}/share/llvm";
878 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
879 eval LLVM_ETCDIR="${prefix}/etc/llvm";
880 eval LLVM_INCLUDEDIR="${prefix}/include";
881 eval LLVM_INFODIR="${prefix}/info";
882 eval LLVM_MANDIR="${prefix}/man";
883 LLVM_CONFIGTIME=`date`
884 AC_SUBST(LLVM_PREFIX)
885 AC_SUBST(LLVM_BINDIR)
886 AC_SUBST(LLVM_LIBDIR)
887 AC_SUBST(LLVM_DATADIR)
888 AC_SUBST(LLVM_DOCSDIR)
889 AC_SUBST(LLVM_ETCDIR)
890 AC_SUBST(LLVM_INCLUDEDIR)
891 AC_SUBST(LLVM_INFODIR)
892 AC_SUBST(LLVM_MANDIR)
893 AC_SUBST(LLVM_CONFIGTIME)
895 # Place the various directores into the config.h file as #defines so that we
896 # can know about the installation paths within LLVM.
897 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
898 [Installation prefix directory])
899 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
900 [Installation directory for binary executables])
901 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
902 [Installation directory for libraries])
903 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
904 [Installation directory for data files])
905 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
906 [Installation directory for documentation])
907 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
908 [Installation directory for config files])
909 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
910 [Installation directory for include files])
911 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
912 [Installation directory for .info files])
913 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
914 [Installation directory for man pages])
915 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
916 [Time at which LLVM was configured])
917 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
918 [Host triple we were built on])
920 # Determine which bindings to build.
921 if test "$BINDINGS_TO_BUILD" = auto ; then
923 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
924 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
927 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
929 # This isn't really configurey, but it avoids having to repeat the list in
931 AC_SUBST(ALL_BINDINGS,ocaml)
933 # Do any work necessary to ensure that bindings have what they need.
934 binding_prereqs_failed=0
935 for a_binding in $BINDINGS_TO_BUILD ; do
938 if test "x$OCAMLC" = x ; then
939 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
940 binding_prereqs_failed=1
942 if test "x$OCAMLDEP" = x ; then
943 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
944 binding_prereqs_failed=1
946 if test "x$OCAMLOPT" = x ; then
947 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
948 dnl ocamlopt is optional!
950 if test "x$with_ocaml_libdir" != xauto ; then
951 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
953 ocaml_stdlib="`"$OCAMLC" -where`"
954 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
956 # ocaml stdlib is beneath our prefix; use stdlib
957 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
959 # ocaml stdlib is outside our prefix; use libdir/ocaml
960 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
966 if test "$binding_prereqs_failed" = 1 ; then
967 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
971 dnl===-----------------------------------------------------------------------===
973 dnl=== SECTION 10: Specify the output files and generate it
975 dnl===-----------------------------------------------------------------------===
977 dnl Configure header files
978 dnl WARNING: dnl If you add or remove any of the following config headers, then
979 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
980 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
981 dnl files can be updated automatically when their *.in sources change.
982 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
983 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
984 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map.h])
985 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set.h])
986 AC_CONFIG_HEADERS([include/llvm/ADT/iterator.h])
988 dnl Configure the makefile's configuration data
989 AC_CONFIG_FILES([Makefile.config])
991 dnl Configure the RPM spec file for LLVM
992 AC_CONFIG_FILES([llvm.spec])
994 dnl Configure doxygen's configuration file
995 AC_CONFIG_FILES([docs/doxygen.cfg])
997 dnl Do the first stage of configuration for llvm-config.in.
998 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1000 dnl Do special configuration of Makefiles
1001 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1002 AC_CONFIG_MAKEFILE(Makefile)
1003 AC_CONFIG_MAKEFILE(Makefile.common)
1004 AC_CONFIG_MAKEFILE(examples/Makefile)
1005 AC_CONFIG_MAKEFILE(lib/Makefile)
1006 AC_CONFIG_MAKEFILE(runtime/Makefile)
1007 AC_CONFIG_MAKEFILE(test/Makefile)
1008 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1009 AC_CONFIG_MAKEFILE(tools/Makefile)
1010 AC_CONFIG_MAKEFILE(utils/Makefile)
1011 AC_CONFIG_MAKEFILE(projects/Makefile)
1012 AC_CONFIG_MAKEFILE(bindings/Makefile)
1013 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1015 dnl Finally, crank out the output