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 is the old name of the test-suite, kept here for backwards
75 llvm-test) AC_CONFIG_SUBDIRS([projects/llvm-test]) ;;
76 test-suite) AC_CONFIG_SUBDIRS([projects/test-suite]) ;;
77 llvm-reopt) AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
78 llvm-gcc) AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;;
79 llvm-java) AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
80 llvm-tv) AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
81 llvm-poolalloc) AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;;
82 poolalloc) AC_CONFIG_SUBDIRS([projects/poolalloc]) ;;
83 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
85 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
91 dnl===-----------------------------------------------------------------------===
93 dnl=== SECTION 2: Architecture, target, and host checks
95 dnl===-----------------------------------------------------------------------===
97 dnl Check the target for which we're compiling and the host that will do the
98 dnl compilations. This will tell us which LLVM compiler will be used for
99 dnl compiling SSA into object code. This needs to be done early because
100 dnl following tests depend on it.
103 dnl Determine the platform type and cache its value. This helps us configure
104 dnl the System library to the correct build platform.
105 AC_CACHE_CHECK([type of operating system we're going to host on],
109 llvm_cv_link_all_option="-Wl,--whole-archive"
110 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
111 llvm_cv_os_type="AIX"
112 llvm_cv_platform_type="Unix" ;;
114 llvm_cv_link_all_option="-Wl,--whole-archive"
115 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
116 llvm_cv_os_type="IRIX"
117 llvm_cv_platform_type="Unix" ;;
119 llvm_cv_link_all_option="-Wl,--whole-archive"
120 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
121 llvm_cv_os_type="Cygwin"
122 llvm_cv_platform_type="Unix" ;;
124 llvm_cv_link_all_option="-Wl,-all_load"
125 llvm_cv_no_link_all_option="-Wl,-noall_load"
126 llvm_cv_os_type="Darwin"
127 llvm_cv_platform_type="Unix" ;;
129 llvm_cv_link_all_option="-Wl,--whole-archive"
130 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
131 llvm_cv_os_type="FreeBSD"
132 llvm_cv_platform_type="Unix" ;;
134 llvm_cv_link_all_option="-Wl,--whole-archive"
135 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
136 llvm_cv_os_type="OpenBSD"
137 llvm_cv_platform_type="Unix" ;;
139 llvm_cv_link_all_option="-Wl,--whole-archive"
140 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
141 llvm_cv_os_type="NetBSD"
142 llvm_cv_platform_type="Unix" ;;
144 llvm_cv_link_all_option="-Wl,--whole-archive"
145 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
146 llvm_cv_os_type="DragonFly"
147 llvm_cv_platform_type="Unix" ;;
149 llvm_cv_link_all_option="-Wl,--whole-archive"
150 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
151 llvm_cv_os_type="HP-UX"
152 llvm_cv_platform_type="Unix" ;;
154 llvm_cv_link_all_option="-Wl,--whole-archive"
155 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
156 llvm_cv_os_type="Interix"
157 llvm_cv_platform_type="Unix" ;;
159 llvm_cv_link_all_option="-Wl,--whole-archive"
160 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
161 llvm_cv_os_type="Linux"
162 llvm_cv_platform_type="Unix" ;;
164 llvm_cv_link_all_option="-Wl,-z,allextract"
165 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
166 llvm_cv_os_type="SunOS"
167 llvm_cv_platform_type="Unix" ;;
169 llvm_cv_link_all_option="-Wl,--whole-archive"
170 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
171 llvm_cv_os_type="Win32"
172 llvm_cv_platform_type="Win32" ;;
174 llvm_cv_link_all_option="-Wl,--whole-archive"
175 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
176 llvm_cv_os_type="MingW"
177 llvm_cv_platform_type="Win32" ;;
179 llvm_cv_link_all_option=""
180 llvm_cv_no_link_all_option=""
181 llvm_cv_os_type="Unknown"
182 llvm_cv_platform_type="Unknown" ;;
185 dnl Make sure we aren't attempting to configure for an unknown system
186 if test "$llvm_cv_os_type" = "Unknown" ; then
187 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
190 dnl Set the "OS" Makefile variable based on the platform type so the
191 dnl makefile can configure itself to specific build hosts
192 AC_SUBST(OS,$llvm_cv_os_type)
194 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
195 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
196 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
198 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
199 dnl This is used by lib/System to determine the basic kind of implementation
201 case $llvm_cv_platform_type in
203 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
204 AC_SUBST(LLVM_ON_UNIX,[1])
205 AC_SUBST(LLVM_ON_WIN32,[0])
208 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
209 AC_SUBST(LLVM_ON_UNIX,[0])
210 AC_SUBST(LLVM_ON_WIN32,[1])
214 dnl Determine what our target architecture is and configure accordingly.
215 dnl This will allow Makefiles to make a distinction between the hardware and
217 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
219 i?86-*) llvm_cv_target_arch="x86" ;;
220 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
221 sparc*-*) llvm_cv_target_arch="Sparc" ;;
222 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
223 alpha*-*) llvm_cv_target_arch="Alpha" ;;
224 ia64-*) llvm_cv_target_arch="IA64" ;;
225 arm-*) llvm_cv_target_arch="ARM" ;;
226 mips-*) llvm_cv_target_arch="Mips" ;;
227 pic16-*) llvm_cv_target_arch="PIC16" ;;
228 *) llvm_cv_target_arch="Unknown" ;;
231 if test "$llvm_cv_target_arch" = "Unknown" ; then
232 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
235 dnl Define a substitution, ARCH, for the target architecture
236 AC_SUBST(ARCH,$llvm_cv_target_arch)
238 dnl Check for the endianness of the target
239 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
241 dnl Check for build platform executable suffix if we're crosscompiling
242 if test "$cross_compiling" = yes; then
243 AC_SUBST(LLVM_CROSS_COMPILING, [1])
246 AC_SUBST(LLVM_CROSS_COMPILING, [0])
249 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
250 dnl build is being done from a checkout. This sets up several defaults for the
251 dnl command line switches. When we build with a CVS directory, we get a
252 dnl debug with assertions turned on. Without, we assume a source release and we
253 dnl get an optimized build without assertions. See --enable-optimized and
254 dnl --enable-assertions below
255 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
258 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
264 dnl===-----------------------------------------------------------------------===
266 dnl=== SECTION 3: Command line arguments for the configure script.
268 dnl===-----------------------------------------------------------------------===
270 dnl --enable-optimized : check whether they want to do an optimized build:
271 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
272 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
273 if test ${enableval} = "no" ; then
274 AC_SUBST(ENABLE_OPTIMIZED,[[]])
276 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
279 dnl --enable-assertions : check whether they want to turn on assertions or not:
280 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
281 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
282 if test ${enableval} = "yes" ; then
283 AC_SUBST(DISABLE_ASSERTIONS,[[]])
285 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
288 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
289 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
290 [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
291 if test ${enableval} = "yes" ; then
292 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
293 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
295 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
296 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
299 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
300 AC_ARG_ENABLE(debug-runtime,
301 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
302 if test ${enableval} = "no" ; then
303 AC_SUBST(DEBUG_RUNTIME,[[]])
305 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
308 dnl --enable-jit: check whether they want to enable the jit
310 AS_HELP_STRING(--enable-jit,
311 [Enable Just In Time Compiling (default is YES)]),,
313 if test ${enableval} = "no"
317 case "$llvm_cv_target_arch" in
318 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
319 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
320 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
321 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
322 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
323 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
324 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
325 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
326 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
327 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
331 dnl Allow enablement of doxygen generated documentation
332 AC_ARG_ENABLE(doxygen,
333 AS_HELP_STRING([--enable-doxygen],
334 [Build doxygen documentation (default is NO)]),,
337 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
338 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
339 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
340 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
343 dnl Allow disablement of threads
344 AC_ARG_ENABLE(threads,
345 AS_HELP_STRING([--enable-threads],
346 [Use threads if available (default is YES)]),,
349 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
350 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
351 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
352 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
354 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
356 dnl Allow building with position independent code
358 AS_HELP_STRING([--enable-pic],
359 [Build LLVM with Position Independent Code (default is NO)]),,
362 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
363 no) AC_SUBST(ENABLE_PIC,[0]) ;;
364 default) AC_SUBST(ENABLE_PIC,[0]) ;;
365 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
367 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
368 [Define if position independent code is enabled])
370 dnl Allow specific targets to be specified for building (or not)
372 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
373 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
376 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips CellSPU PIC16 CBackend MSIL CppBackend" ;;
378 case "$llvm_cv_target_arch" in
379 x86) TARGETS_TO_BUILD="X86" ;;
380 x86_64) TARGETS_TO_BUILD="X86" ;;
381 Sparc) TARGETS_TO_BUILD="Sparc" ;;
382 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
383 Alpha) TARGETS_TO_BUILD="Alpha" ;;
384 IA64) TARGETS_TO_BUILD="IA64" ;;
385 ARM) TARGETS_TO_BUILD="ARM" ;;
386 Mips) TARGETS_TO_BUILD="Mips" ;;
387 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;;
388 PIC16) TARGETS_TO_BUILD="PIC16" ;;
389 *) AC_MSG_ERROR([Can not set target to build]) ;;
392 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
394 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
395 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
396 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
397 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
398 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
399 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
400 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
401 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
402 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
403 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
404 cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
405 msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
406 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
407 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
412 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
414 dnl Prevent the CBackend from using printf("%a") for floating point so older
415 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
416 dnl can still compile the CBE's output
417 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
418 [Enable C Backend output with hex floating point via %a (default is YES)]),,
421 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
422 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
423 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
424 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
426 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
427 [Define if CBE is enabled for printf %a output])
429 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
430 AC_ARG_WITH(llvmgccdir,
431 AS_HELP_STRING([--with-llvmgccdir],
432 [Specify location of llvm-gcc install dir (default searches PATH)]),,
435 default) WITH_LLVMGCCDIR=default ;;
436 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
437 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
440 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
442 AS_HELP_STRING([--with-llvmgcc],
443 [Specify location of llvm-gcc driver (default searches PATH)]),
444 LLVMGCC=$with_llvmgcc
447 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
449 AS_HELP_STRING([--with-llvmgxx],
450 [Specify location of llvm-g++ driver (default searches PATH)]),
451 LLVMGXX=$with_llvmgxx
454 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
455 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
458 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
459 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
462 dnl Specify extra build options
463 AC_ARG_WITH(extra-options,
464 AS_HELP_STRING([--with-extra-options],
465 [Specify addtional options to compile LLVM with]),,
468 default) EXTRA_OPTIONS= ;;
469 *) EXTRA_OPTIONS=$withval ;;
471 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
473 dnl Allow specific bindings to be specified for building (or not)
474 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
475 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
479 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
480 all ) BINDINGS_TO_BUILD="ocaml" ;;
481 none | no) BINDINGS_TO_BUILD="" ;;
482 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
484 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
485 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
491 dnl Allow the ocaml libdir to be overridden. This could go in a configure
492 dnl script for bindings/ocaml/configure, except that its auto value depends on
493 dnl OCAMLC, which is found here to support tests.
494 AC_ARG_WITH([ocaml-libdir],
495 [AS_HELP_STRING([--with-ocaml-libdir],
496 [Specify install location for ocaml bindings (default is stdlib)])],
500 auto) with_ocaml_libdir="$withval" ;;
501 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
502 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
505 dnl===-----------------------------------------------------------------------===
507 dnl=== SECTION 4: Check for programs we need and that they are the right version
509 dnl===-----------------------------------------------------------------------===
511 dnl Check for compilation tools
521 dnl Check for the tools that the makefiles require
524 AC_PATH_PROG(CMP, [cmp], [cmp])
525 AC_PATH_PROG(CP, [cp], [cp])
526 AC_PATH_PROG(DATE, [date], [date])
527 AC_PATH_PROG(FIND, [find], [find])
528 AC_PATH_PROG(GREP, [grep], [grep])
529 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
530 AC_PATH_PROG(MV, [mv], [mv])
532 AC_PATH_PROG(RM, [rm], [rm])
533 AC_PATH_PROG(SED, [sed], [sed])
534 AC_PATH_PROG(TAR, [tar], [gtar])
535 AC_PATH_PROG(BINPWD,[pwd], [pwd])
537 dnl Looking for misc. graph plotting software
538 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
539 if test "$GRAPHVIZ" != "echo Graphviz" ; then
540 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
541 dnl If we're targeting for mingw we should emit windows paths, not msys
542 if test "$llvm_cv_os_type" = "MingW" ; then
543 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
545 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
546 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
548 AC_PATH_PROG(DOT, [dot], [echo dot])
549 if test "$DOT" != "echo dot" ; then
550 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
551 dnl If we're targeting for mingw we should emit windows paths, not msys
552 if test "$llvm_cv_os_type" = "MingW" ; then
553 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
555 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
556 [Define to path to dot program if found or 'echo dot' otherwise])
558 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
559 if test "$GV" != "echo gv" ; then
560 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
561 dnl If we're targeting for mingw we should emit windows paths, not msys
562 if test "$llvm_cv_os_type" = "MingW" ; then
563 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
565 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
566 [Define to path to gv program if found or 'echo gv' otherwise])
568 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
569 if test "$DOTTY" != "echo dotty" ; then
570 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
571 dnl If we're targeting for mingw we should emit windows paths, not msys
572 if test "$llvm_cv_os_type" = "MingW" ; then
573 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
575 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
576 [Define to path to dotty program if found or 'echo dotty' otherwise])
579 dnl Look for a sufficiently recent version of Perl.
580 LLVM_PROG_PERL([5.006])
582 if test x"$PERL" = xnone; then
583 AC_SUBST(HAVE_PERL,0)
584 AC_MSG_ERROR([perl is required but was not found, please install it])
586 AC_SUBST(HAVE_PERL,1)
589 dnl Find the install program
592 dnl Checks for documentation and testing tools that we can do without. If these
593 dnl are not found then they are set to "true" which always succeeds but does
594 dnl nothing. This just lets the build output show that we could have done
595 dnl something if the tool was available.
596 AC_PATH_PROG(BZIP2, [bzip2])
597 AC_PATH_PROG(DOXYGEN, [doxygen])
598 AC_PATH_PROG(GROFF, [groff])
599 AC_PATH_PROG(GZIP, [gzip])
600 AC_PATH_PROG(POD2HTML, [pod2html])
601 AC_PATH_PROG(POD2MAN, [pod2man])
602 AC_PATH_PROG(RUNTEST, [runtest])
604 AC_PATH_PROG(ZIP, [zip])
605 AC_PATH_PROGS(OCAMLC, [ocamlc.opt ocamlc])
606 AC_PATH_PROGS(OCAMLOPT, [ocamlopt.opt ocamlopt])
607 AC_PATH_PROGS(OCAMLDEP, [ocamldep.opt ocamldep])
608 AC_PATH_PROGS(OCAMLDOC, [ocamldoc.opt ocamldoc])
610 dnl Determine if the linker supports the -R option.
613 dnl Check for libtool and the library that has dlopen function (which must come
614 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
620 if test "$lt_cv_dlopen_self" = "yes" ; then
621 AC_DEFINE([CAN_DLOPEN_SELF],[1],
622 [Define if dlopen(0) will open the symbols of the program])
625 if test "$WITH_LLVMGCCDIR" = "default" ; then
626 LLVMGCC="llvm-gcc${EXEEXT}"
627 LLVMGXX="llvm-g++${EXEEXT}"
628 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
629 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
631 if test -z "$LLVMGCC"; then
632 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
634 if test -z "$LLVMGXX"; then
635 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
637 AC_SUBST(LLVMGCC,$LLVMGCC)
638 AC_SUBST(LLVMGXX,$LLVMGXX)
641 AC_MSG_CHECKING([tool compatibility])
643 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
644 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
645 dnl to support those options.
646 dnl "icc" emits gcc signatures
647 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
659 if test "$GCC" != "yes" && test "$ICC" != "yes"
661 AC_MSG_ERROR([gcc|icc required but not found])
664 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
665 if test "$GXX" != "yes" && test "$IXX" != "yes"
667 AC_MSG_ERROR([g++|icc required but not found])
670 dnl Verify that GCC is version 3.0 or higher
671 if test "$GCC" = "yes"
673 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
674 #error Unsupported GCC version
676 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
679 dnl Check for GNU Make. We use its extensions, so don't build without it
680 if test -z "$llvm_cv_gnu_make_command"
682 AC_MSG_ERROR([GNU Make required but not found])
685 dnl Tool compatibility is okay if we make it here.
688 dnl===-----------------------------------------------------------------------===
690 dnl=== SECTION 5: Check for libraries
692 dnl===-----------------------------------------------------------------------===
694 dnl libelf is for sparc only; we can ignore it if we don't have it
695 AC_CHECK_LIB(elf, elf_begin)
697 if test "$llvm_cv_os_type" = "MingW" ; then
698 AC_CHECK_LIB(imagehlp, main)
699 AC_CHECK_LIB(psapi, main)
702 dnl dlopen() is required for plugin support.
703 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
704 [Define if dlopen() is available on this platform.]),
705 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
707 dnl mallinfo is optional; the code can compile (minus features) without it
708 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
709 [Define if mallinfo() is available on this platform.]))
711 dnl pthread locking functions are optional - but llvm will not be thread-safe
713 if test "$ENABLE_THREADS" -eq 1 ; then
714 AC_CHECK_LIB(pthread,pthread_mutex_init)
715 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
716 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
717 [Have pthread_mutex_lock]))
720 dnl Allow extra x86-disassembler library
722 AS_HELP_STRING([--with-udis86=<path>],
723 [Use udis86 external x86 disassembler library]),
725 AC_SUBST(USE_UDIS86, [1])
728 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
730 AC_CHECK_LIB(udis86, ud_init, [], [
731 echo "Error! You need to have libudis86 around."
735 AC_SUBST(USE_UDIS86, [0]))
736 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
737 [Define if use udis86 library])
739 dnl===-----------------------------------------------------------------------===
741 dnl=== SECTION 6: Check for header files
743 dnl===-----------------------------------------------------------------------===
745 dnl First, use autoconf provided macros for specific headers that we need
746 dnl We don't check for ancient stuff or things that are guaranteed to be there
747 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
748 dnl Generally we're looking for POSIX headers.
750 AC_HEADER_MMAP_ANONYMOUS
756 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
757 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
758 AC_CHECK_HEADERS([windows.h])
759 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
760 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
761 if test "$ENABLE_THREADS" -eq 1 ; then
762 AC_CHECK_HEADERS(pthread.h,
763 AC_SUBST(HAVE_PTHREAD, 1),
764 AC_SUBST(HAVE_PTHREAD, 0))
766 AC_SUBST(HAVE_PTHREAD, 0)
769 dnl===-----------------------------------------------------------------------===
771 dnl=== SECTION 7: Check for types and structures
773 dnl===-----------------------------------------------------------------------===
780 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
781 AC_CHECK_TYPES([uint64_t],,
782 AC_CHECK_TYPES([u_int64_t],,
783 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
785 dnl===-----------------------------------------------------------------------===
787 dnl=== SECTION 8: Check for specific functions needed
789 dnl===-----------------------------------------------------------------------===
791 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
792 AC_CHECK_FUNCS([powf fmodf strtof round ])
793 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
794 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
795 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
796 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
797 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
802 dnl Check for variations in the Standard C++ library and STL. These macros are
803 dnl provided by LLVM in the autoconf/m4 directory.
806 AC_CXX_HAVE_STD_ITERATOR
807 AC_CXX_HAVE_BI_ITERATOR
808 AC_CXX_HAVE_FWD_ITERATOR
812 dnl Check for mmap support.We also need to know if /dev/zero is required to
813 dnl be opened for allocating RWX memory.
814 dnl Make sure we aren't attempting to configure for an unknown system
815 if test "$llvm_cv_platform_type" = "Unix" ; then
818 AC_NEED_DEV_ZERO_FOR_MMAP
820 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
822 AC_MSG_WARN([mmap() of a fixed address required but not supported])
824 if test "$ac_cv_func_mmap_file" = "no"
826 AC_MSG_WARN([mmap() of files required but not found])
830 dnl===-----------------------------------------------------------------------===
832 dnl=== SECTION 9: Additional checks, variables, etc.
834 dnl===-----------------------------------------------------------------------===
836 dnl Check, whether __dso_handle is present
837 AC_CHECK_FUNCS([__dso_handle])
839 dnl See if the llvm-gcc executable can compile to LLVM assembly
840 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
841 [llvm_cv_llvmgcc_sanity="no"
842 if test -x "$LLVMGCC" ; then
843 cp /dev/null conftest.c
844 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
845 grep 'target datalayout =' > /dev/null 2>&1
846 if test $? -eq 0 ; then
847 llvm_cv_llvmgcc_sanity="yes"
852 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
853 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
854 AC_MSG_CHECKING([llvm-gcc component support])
855 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
856 AC_SUBST(LLVMCC1,$llvmcc1path)
857 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
858 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
859 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
860 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
861 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
862 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
863 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
864 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
865 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
866 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
867 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
868 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
872 dnl Propagate the shared library extension that the libltdl checks did to
873 dnl the Makefiles so we can use it there too
874 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
876 # Translate the various configuration directories and other basic
877 # information into substitutions that will end up in Makefile.config.in
878 # that these configured values can be used by the makefiles
879 if test "${prefix}" = "NONE" ; then
882 eval LLVM_PREFIX="${prefix}";
883 eval LLVM_BINDIR="${prefix}/bin";
884 eval LLVM_LIBDIR="${prefix}/lib";
885 eval LLVM_DATADIR="${prefix}/share/llvm";
886 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
887 eval LLVM_ETCDIR="${prefix}/etc/llvm";
888 eval LLVM_INCLUDEDIR="${prefix}/include";
889 eval LLVM_INFODIR="${prefix}/info";
890 eval LLVM_MANDIR="${prefix}/man";
891 LLVM_CONFIGTIME=`date`
892 AC_SUBST(LLVM_PREFIX)
893 AC_SUBST(LLVM_BINDIR)
894 AC_SUBST(LLVM_LIBDIR)
895 AC_SUBST(LLVM_DATADIR)
896 AC_SUBST(LLVM_DOCSDIR)
897 AC_SUBST(LLVM_ETCDIR)
898 AC_SUBST(LLVM_INCLUDEDIR)
899 AC_SUBST(LLVM_INFODIR)
900 AC_SUBST(LLVM_MANDIR)
901 AC_SUBST(LLVM_CONFIGTIME)
903 # Place the various directores into the config.h file as #defines so that we
904 # can know about the installation paths within LLVM.
905 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
906 [Installation prefix directory])
907 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
908 [Installation directory for binary executables])
909 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
910 [Installation directory for libraries])
911 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
912 [Installation directory for data files])
913 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
914 [Installation directory for documentation])
915 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
916 [Installation directory for config files])
917 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
918 [Installation directory for include files])
919 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
920 [Installation directory for .info files])
921 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
922 [Installation directory for man pages])
923 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
924 [Time at which LLVM was configured])
925 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
926 [Host triple we were built on])
928 # Determine which bindings to build.
929 if test "$BINDINGS_TO_BUILD" = auto ; then
931 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
932 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
935 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
937 # This isn't really configurey, but it avoids having to repeat the list in
939 AC_SUBST(ALL_BINDINGS,ocaml)
941 # Do any work necessary to ensure that bindings have what they need.
942 binding_prereqs_failed=0
943 for a_binding in $BINDINGS_TO_BUILD ; do
946 if test "x$OCAMLC" = x ; then
947 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
948 binding_prereqs_failed=1
950 if test "x$OCAMLDEP" = x ; then
951 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
952 binding_prereqs_failed=1
954 if test "x$OCAMLOPT" = x ; then
955 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
956 dnl ocamlopt is optional!
958 if test "x$with_ocaml_libdir" != xauto ; then
959 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
961 ocaml_stdlib="`"$OCAMLC" -where`"
962 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
964 # ocaml stdlib is beneath our prefix; use stdlib
965 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
967 # ocaml stdlib is outside our prefix; use libdir/ocaml
968 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
974 if test "$binding_prereqs_failed" = 1 ; then
975 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
978 dnl Determine if the compiler supports -fvisibility-inlines-hidden.
979 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
981 dnl===-----------------------------------------------------------------------===
983 dnl=== SECTION 10: Specify the output files and generate it
985 dnl===-----------------------------------------------------------------------===
987 dnl Configure header files
988 dnl WARNING: dnl If you add or remove any of the following config headers, then
989 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
990 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
991 dnl files can be updated automatically when their *.in sources change.
992 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
993 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
994 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map.h])
995 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set.h])
996 AC_CONFIG_HEADERS([include/llvm/ADT/iterator.h])
998 dnl Configure the makefile's configuration data
999 AC_CONFIG_FILES([Makefile.config])
1001 dnl Configure the RPM spec file for LLVM
1002 AC_CONFIG_FILES([llvm.spec])
1004 dnl Configure doxygen's configuration file
1005 AC_CONFIG_FILES([docs/doxygen.cfg])
1007 dnl Do the first stage of configuration for llvm-config.in.
1008 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1010 dnl Do special configuration of Makefiles
1011 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1012 AC_CONFIG_MAKEFILE(Makefile)
1013 AC_CONFIG_MAKEFILE(Makefile.common)
1014 AC_CONFIG_MAKEFILE(examples/Makefile)
1015 AC_CONFIG_MAKEFILE(lib/Makefile)
1016 AC_CONFIG_MAKEFILE(runtime/Makefile)
1017 AC_CONFIG_MAKEFILE(test/Makefile)
1018 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1019 AC_CONFIG_MAKEFILE(tools/Makefile)
1020 AC_CONFIG_MAKEFILE(utils/Makefile)
1021 AC_CONFIG_MAKEFILE(projects/Makefile)
1022 AC_CONFIG_MAKEFILE(bindings/Makefile)
1023 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1025 dnl Finally, crank out the output