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]],[[2.6svn]],[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 $llvm_cv_platform_type in
203 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
204 AC_SUBST(LLVM_ON_UNIX,[1])
205 AC_SUBST(LLVM_ON_WIN32,[0])
208 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
209 AC_SUBST(LLVM_ON_UNIX,[0])
210 AC_SUBST(LLVM_ON_WIN32,[1])
214 dnl Determine what our target architecture is and configure accordingly.
215 dnl This will allow Makefiles to make a distinction between the hardware and
217 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
219 i?86-*) llvm_cv_target_arch="x86" ;;
220 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
221 sparc*-*) llvm_cv_target_arch="Sparc" ;;
222 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
223 alpha*-*) llvm_cv_target_arch="Alpha" ;;
224 ia64-*) llvm_cv_target_arch="IA64" ;;
225 arm-*) llvm_cv_target_arch="ARM" ;;
226 mips-*) llvm_cv_target_arch="Mips" ;;
227 pic16-*) llvm_cv_target_arch="PIC16" ;;
228 xcore-*) llvm_cv_target_arch="XCore" ;;
229 *) llvm_cv_target_arch="Unknown" ;;
232 if test "$llvm_cv_target_arch" = "Unknown" ; then
233 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
236 dnl Define a substitution, ARCH, for the target architecture
237 AC_SUBST(ARCH,$llvm_cv_target_arch)
239 dnl Check for the endianness of the target
240 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
242 dnl Check for build platform executable suffix if we're crosscompiling
243 if test "$cross_compiling" = yes; then
244 AC_SUBST(LLVM_CROSS_COMPILING, [1])
246 ac_build_prefix=${build_alias}-
247 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
248 if test -z "$BUILD_CXX"; then
249 AC_CHECK_PROG(BUILD_CXX, g++, g++)
250 if test -z "$BUILD_CXX"; then
251 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
255 AC_SUBST(LLVM_CROSS_COMPILING, [0])
258 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
259 dnl build is being done from a checkout. This sets up several defaults for the
260 dnl command line switches. When we build with a CVS directory, we get a
261 dnl debug with assertions turned on. Without, we assume a source release and we
262 dnl get an optimized build without assertions. See --enable-optimized and
263 dnl --enable-assertions below
264 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
267 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
273 dnl===-----------------------------------------------------------------------===
275 dnl=== SECTION 3: Command line arguments for the configure script.
277 dnl===-----------------------------------------------------------------------===
279 dnl --enable-optimized : check whether they want to do an optimized build:
280 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
281 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
282 if test ${enableval} = "no" ; then
283 AC_SUBST(ENABLE_OPTIMIZED,[[]])
285 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
288 dnl --enable-assertions : check whether they want to turn on assertions or not:
289 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
290 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
291 if test ${enableval} = "yes" ; then
292 AC_SUBST(DISABLE_ASSERTIONS,[[]])
294 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
297 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
298 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
299 [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
300 if test ${enableval} = "yes" ; then
301 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
302 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
304 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
305 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
308 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
309 AC_ARG_ENABLE(debug-runtime,
310 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
311 if test ${enableval} = "no" ; then
312 AC_SUBST(DEBUG_RUNTIME,[[]])
314 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
317 dnl --enable-jit: check whether they want to enable the jit
319 AS_HELP_STRING(--enable-jit,
320 [Enable Just In Time Compiling (default is YES)]),,
322 if test ${enableval} = "no"
326 case "$llvm_cv_target_arch" in
327 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
328 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
329 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
330 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
331 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
332 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
333 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
334 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
335 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
336 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
337 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
341 dnl Allow enablement of doxygen generated documentation
342 AC_ARG_ENABLE(doxygen,
343 AS_HELP_STRING([--enable-doxygen],
344 [Build doxygen documentation (default is NO)]),,
347 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
348 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
349 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
350 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
353 dnl Allow disablement of threads
354 AC_ARG_ENABLE(threads,
355 AS_HELP_STRING([--enable-threads],
356 [Use threads if available (default is YES)]),,
359 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
360 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
361 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
362 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
364 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
366 dnl Allow building with position independent code
368 AS_HELP_STRING([--enable-pic],
369 [Build LLVM with Position Independent Code (default is NO)]),,
372 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
373 no) AC_SUBST(ENABLE_PIC,[0]) ;;
374 default) AC_SUBST(ENABLE_PIC,[0]) ;;
375 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
377 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
378 [Define if position independent code is enabled])
380 dnl Allow specific targets to be specified for building (or not)
382 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
383 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
386 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips CellSPU PIC16 XCore CBackend MSIL CppBackend" ;;
388 case "$llvm_cv_target_arch" in
389 x86) TARGETS_TO_BUILD="X86" ;;
390 x86_64) TARGETS_TO_BUILD="X86" ;;
391 Sparc) TARGETS_TO_BUILD="Sparc" ;;
392 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
393 Alpha) TARGETS_TO_BUILD="Alpha" ;;
394 IA64) TARGETS_TO_BUILD="IA64" ;;
395 ARM) TARGETS_TO_BUILD="ARM" ;;
396 Mips) TARGETS_TO_BUILD="Mips" ;;
397 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;;
398 PIC16) TARGETS_TO_BUILD="PIC16" ;;
399 XCore) TARGETS_TO_BUILD="XCore" ;;
400 *) AC_MSG_ERROR([Can not set target to build]) ;;
403 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
405 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
406 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
407 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
408 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
409 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
410 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
411 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
412 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
413 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
414 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
415 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
416 cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
417 msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
418 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
419 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
424 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
426 dnl Prevent the CBackend from using printf("%a") for floating point so older
427 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
428 dnl can still compile the CBE's output
429 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
430 [Enable C Backend output with hex floating point via %a (default is YES)]),,
433 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
434 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
435 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
436 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
438 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
439 [Define if CBE is enabled for printf %a output])
441 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
442 AC_ARG_WITH(llvmgccdir,
443 AS_HELP_STRING([--with-llvmgccdir],
444 [Specify location of llvm-gcc install dir (default searches PATH)]),,
447 default) WITH_LLVMGCCDIR=default ;;
448 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
449 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
452 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
454 AS_HELP_STRING([--with-llvmgcc],
455 [Specify location of llvm-gcc driver (default searches PATH)]),
456 LLVMGCC=$with_llvmgcc
459 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
461 AS_HELP_STRING([--with-llvmgxx],
462 [Specify location of llvm-g++ driver (default searches PATH)]),
463 LLVMGXX=$with_llvmgxx
466 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
467 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
470 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
471 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
474 dnl Specify extra build options
475 AC_ARG_WITH(extra-options,
476 AS_HELP_STRING([--with-extra-options],
477 [Specify addtional options to compile LLVM with]),,
480 default) EXTRA_OPTIONS= ;;
481 *) EXTRA_OPTIONS=$withval ;;
483 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
485 dnl Allow specific bindings to be specified for building (or not)
486 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
487 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
491 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
492 all ) BINDINGS_TO_BUILD="ocaml" ;;
493 none | no) BINDINGS_TO_BUILD="" ;;
494 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
496 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
497 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
503 dnl Allow the ocaml libdir to be overridden. This could go in a configure
504 dnl script for bindings/ocaml/configure, except that its auto value depends on
505 dnl OCAMLC, which is found here to support tests.
506 AC_ARG_WITH([ocaml-libdir],
507 [AS_HELP_STRING([--with-ocaml-libdir],
508 [Specify install location for ocaml bindings (default is stdlib)])],
512 auto) with_ocaml_libdir="$withval" ;;
513 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
514 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
517 dnl===-----------------------------------------------------------------------===
519 dnl=== SECTION 4: Check for programs we need and that they are the right version
521 dnl===-----------------------------------------------------------------------===
523 dnl Check for compilation tools
533 dnl Check for the tools that the makefiles require
536 AC_PATH_PROG(CMP, [cmp], [cmp])
537 AC_PATH_PROG(CP, [cp], [cp])
538 AC_PATH_PROG(DATE, [date], [date])
539 AC_PATH_PROG(FIND, [find], [find])
540 AC_PATH_PROG(GREP, [grep], [grep])
541 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
542 AC_PATH_PROG(MV, [mv], [mv])
544 AC_PATH_PROG(RM, [rm], [rm])
545 AC_PATH_PROG(SED, [sed], [sed])
546 AC_PATH_PROG(TAR, [tar], [gtar])
547 AC_PATH_PROG(BINPWD,[pwd], [pwd])
549 dnl Looking for misc. graph plotting software
550 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
551 if test "$GRAPHVIZ" != "echo Graphviz" ; then
552 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz 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 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
557 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
558 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
560 AC_PATH_PROG(DOT, [dot], [echo dot])
561 if test "$DOT" != "echo dot" ; then
562 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
563 dnl If we're targeting for mingw we should emit windows paths, not msys
564 if test "$llvm_cv_os_type" = "MingW" ; then
565 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
567 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
568 [Define to path to dot program if found or 'echo dot' otherwise])
570 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
571 if test "$GV" != "echo gv" ; then
572 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
573 dnl If we're targeting for mingw we should emit windows paths, not msys
574 if test "$llvm_cv_os_type" = "MingW" ; then
575 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
577 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
578 [Define to path to gv program if found or 'echo gv' otherwise])
580 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
581 if test "$DOTTY" != "echo dotty" ; then
582 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
583 dnl If we're targeting for mingw we should emit windows paths, not msys
584 if test "$llvm_cv_os_type" = "MingW" ; then
585 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
587 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
588 [Define to path to dotty program if found or 'echo dotty' otherwise])
591 dnl Look for a sufficiently recent version of Perl.
592 LLVM_PROG_PERL([5.006])
594 if test x"$PERL" = xnone; then
595 AC_SUBST(HAVE_PERL,0)
596 AC_MSG_ERROR([perl is required but was not found, please install it])
598 AC_SUBST(HAVE_PERL,1)
601 dnl Find the install program
604 dnl Checks for documentation and testing tools that we can do without. If these
605 dnl are not found then they are set to "true" which always succeeds but does
606 dnl nothing. This just lets the build output show that we could have done
607 dnl something if the tool was available.
608 AC_PATH_PROG(BZIP2, [bzip2])
609 AC_PATH_PROG(DOXYGEN, [doxygen])
610 AC_PATH_PROG(GROFF, [groff])
611 AC_PATH_PROG(GZIP, [gzip])
612 AC_PATH_PROG(POD2HTML, [pod2html])
613 AC_PATH_PROG(POD2MAN, [pod2man])
614 AC_PATH_PROG(RUNTEST, [runtest])
616 AC_PATH_PROG(ZIP, [zip])
617 AC_PATH_PROGS(OCAMLC, [ocamlc])
618 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
619 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
620 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
621 AC_PATH_PROGS(GAS, [gas as])
623 dnl Determine if the linker supports the -R option.
626 dnl Check for libtool and the library that has dlopen function (which must come
627 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
633 if test "$lt_cv_dlopen_self" = "yes" ; then
634 AC_DEFINE([CAN_DLOPEN_SELF],[1],
635 [Define if dlopen(0) will open the symbols of the program])
638 if test "$WITH_LLVMGCCDIR" = "default" ; then
639 LLVMGCC="llvm-gcc${EXEEXT}"
640 LLVMGXX="llvm-g++${EXEEXT}"
641 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
642 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
644 if test -z "$LLVMGCC"; then
645 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
647 if test -z "$LLVMGXX"; then
648 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
650 AC_SUBST(LLVMGCC,$LLVMGCC)
651 AC_SUBST(LLVMGXX,$LLVMGXX)
654 AC_MSG_CHECKING([tool compatibility])
656 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
657 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
658 dnl to support those options.
659 dnl "icc" emits gcc signatures
660 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
672 if test "$GCC" != "yes" && test "$ICC" != "yes"
674 AC_MSG_ERROR([gcc|icc required but not found])
677 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
678 if test "$GXX" != "yes" && test "$IXX" != "yes"
680 AC_MSG_ERROR([g++|icc required but not found])
683 dnl Verify that GCC is version 3.0 or higher
684 if test "$GCC" = "yes"
686 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
687 #error Unsupported GCC version
689 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
692 dnl Check for GNU Make. We use its extensions, so don't build without it
693 if test -z "$llvm_cv_gnu_make_command"
695 AC_MSG_ERROR([GNU Make required but not found])
698 dnl Tool compatibility is okay if we make it here.
701 dnl===-----------------------------------------------------------------------===
703 dnl=== SECTION 5: Check for libraries
705 dnl===-----------------------------------------------------------------------===
707 dnl libelf is for sparc only; we can ignore it if we don't have it
708 AC_CHECK_LIB(elf, elf_begin)
710 if test "$llvm_cv_os_type" = "MingW" ; then
711 AC_CHECK_LIB(imagehlp, main)
712 AC_CHECK_LIB(psapi, main)
715 dnl dlopen() is required for plugin support.
716 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
717 [Define if dlopen() is available on this platform.]),
718 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
720 dnl libffi is optional; used to call external functions from the interpreter
721 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_LIBFFI],[1],
722 [Define to 1 if you have the libffi library (-lffi).]),
723 AC_MSG_WARN([libffi not found - disabling external calls from interpreter]))
725 dnl mallinfo is optional; the code can compile (minus features) without it
726 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
727 [Define if mallinfo() is available on this platform.]))
729 dnl pthread locking functions are optional - but llvm will not be thread-safe
731 if test "$ENABLE_THREADS" -eq 1 ; then
732 AC_CHECK_LIB(pthread,pthread_mutex_init)
733 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
734 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
735 [Have pthread_mutex_lock]))
738 dnl Allow extra x86-disassembler library
740 AS_HELP_STRING([--with-udis86=<path>],
741 [Use udis86 external x86 disassembler library]),
743 AC_SUBST(USE_UDIS86, [1])
746 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
748 AC_CHECK_LIB(udis86, ud_init, [], [
749 echo "Error! You need to have libudis86 around."
753 AC_SUBST(USE_UDIS86, [0]))
754 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
755 [Define if use udis86 library])
757 dnl===-----------------------------------------------------------------------===
759 dnl=== SECTION 6: Check for header files
761 dnl===-----------------------------------------------------------------------===
763 dnl First, use autoconf provided macros for specific headers that we need
764 dnl We don't check for ancient stuff or things that are guaranteed to be there
765 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
766 dnl Generally we're looking for POSIX headers.
768 AC_HEADER_MMAP_ANONYMOUS
774 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
775 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
776 AC_CHECK_HEADERS([windows.h])
777 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
778 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
779 if test "$ENABLE_THREADS" -eq 1 ; then
780 AC_CHECK_HEADERS(pthread.h,
781 AC_SUBST(HAVE_PTHREAD, 1),
782 AC_SUBST(HAVE_PTHREAD, 0))
784 AC_SUBST(HAVE_PTHREAD, 0)
787 dnl Debian vs. the world.
788 AC_CHECK_HEADER(ffi/ffi.h, AC_DEFINE(FFI_HEADER, ["ffi/ffi.h"], [Path to ffi.h]))
789 AC_CHECK_HEADER(ffi.h, AC_DEFINE(FFI_HEADER, ["ffi.h"], [Path to ffi.h]))
791 dnl===-----------------------------------------------------------------------===
793 dnl=== SECTION 7: Check for types and structures
795 dnl===-----------------------------------------------------------------------===
802 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
803 AC_CHECK_TYPES([uint64_t],,
804 AC_CHECK_TYPES([u_int64_t],,
805 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
807 dnl===-----------------------------------------------------------------------===
809 dnl=== SECTION 8: Check for specific functions needed
811 dnl===-----------------------------------------------------------------------===
813 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
814 AC_CHECK_FUNCS([powf fmodf strtof round ])
815 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
816 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
817 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
818 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
819 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
824 dnl Check for variations in the Standard C++ library and STL. These macros are
825 dnl provided by LLVM in the autoconf/m4 directory.
828 AC_CXX_HAVE_STD_ITERATOR
829 AC_CXX_HAVE_BI_ITERATOR
830 AC_CXX_HAVE_FWD_ITERATOR
834 dnl Check for mmap support.We also need to know if /dev/zero is required to
835 dnl be opened for allocating RWX memory.
836 dnl Make sure we aren't attempting to configure for an unknown system
837 if test "$llvm_cv_platform_type" = "Unix" ; then
840 AC_NEED_DEV_ZERO_FOR_MMAP
842 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
844 AC_MSG_WARN([mmap() of a fixed address required but not supported])
846 if test "$ac_cv_func_mmap_file" = "no"
848 AC_MSG_WARN([mmap() of files required but not found])
852 dnl===-----------------------------------------------------------------------===
854 dnl=== SECTION 9: Additional checks, variables, etc.
856 dnl===-----------------------------------------------------------------------===
858 dnl Check, whether __dso_handle is present
859 AC_CHECK_FUNCS([__dso_handle])
861 dnl See if the llvm-gcc executable can compile to LLVM assembly
862 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
863 [llvm_cv_llvmgcc_sanity="no"
864 if test -x "$LLVMGCC" ; then
865 cp /dev/null conftest.c
866 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
867 grep 'target datalayout =' > /dev/null 2>&1
868 if test $? -eq 0 ; then
869 llvm_cv_llvmgcc_sanity="yes"
874 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
875 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
876 AC_MSG_CHECKING([llvm-gcc component support])
877 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
878 AC_SUBST(LLVMCC1,$llvmcc1path)
879 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
880 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
881 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
882 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
883 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
884 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
885 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
886 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
887 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
888 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
889 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ ]*\).*/\1/'`]
890 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
894 dnl Propagate the shared library extension that the libltdl checks did to
895 dnl the Makefiles so we can use it there too
896 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
898 # Translate the various configuration directories and other basic
899 # information into substitutions that will end up in Makefile.config.in
900 # that these configured values can be used by the makefiles
901 if test "${prefix}" = "NONE" ; then
904 eval LLVM_PREFIX="${prefix}";
905 eval LLVM_BINDIR="${prefix}/bin";
906 eval LLVM_LIBDIR="${prefix}/lib";
907 eval LLVM_DATADIR="${prefix}/share/llvm";
908 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
909 eval LLVM_ETCDIR="${prefix}/etc/llvm";
910 eval LLVM_INCLUDEDIR="${prefix}/include";
911 eval LLVM_INFODIR="${prefix}/info";
912 eval LLVM_MANDIR="${prefix}/man";
913 LLVM_CONFIGTIME=`date`
914 AC_SUBST(LLVM_PREFIX)
915 AC_SUBST(LLVM_BINDIR)
916 AC_SUBST(LLVM_LIBDIR)
917 AC_SUBST(LLVM_DATADIR)
918 AC_SUBST(LLVM_DOCSDIR)
919 AC_SUBST(LLVM_ETCDIR)
920 AC_SUBST(LLVM_INCLUDEDIR)
921 AC_SUBST(LLVM_INFODIR)
922 AC_SUBST(LLVM_MANDIR)
923 AC_SUBST(LLVM_CONFIGTIME)
925 # Place the various directores into the config.h file as #defines so that we
926 # can know about the installation paths within LLVM.
927 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
928 [Installation prefix directory])
929 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
930 [Installation directory for binary executables])
931 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
932 [Installation directory for libraries])
933 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
934 [Installation directory for data files])
935 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
936 [Installation directory for documentation])
937 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
938 [Installation directory for config files])
939 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
940 [Installation directory for include files])
941 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
942 [Installation directory for .info files])
943 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
944 [Installation directory for man pages])
945 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
946 [Time at which LLVM was configured])
947 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
948 [Host triple we were built on])
950 # Determine which bindings to build.
951 if test "$BINDINGS_TO_BUILD" = auto ; then
953 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
954 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
957 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
959 # This isn't really configurey, but it avoids having to repeat the list in
961 AC_SUBST(ALL_BINDINGS,ocaml)
963 # Do any work necessary to ensure that bindings have what they need.
964 binding_prereqs_failed=0
965 for a_binding in $BINDINGS_TO_BUILD ; do
968 if test "x$OCAMLC" = x ; then
969 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
970 binding_prereqs_failed=1
972 if test "x$OCAMLDEP" = x ; then
973 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
974 binding_prereqs_failed=1
976 if test "x$OCAMLOPT" = x ; then
977 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
978 dnl ocamlopt is optional!
980 if test "x$with_ocaml_libdir" != xauto ; then
981 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
983 ocaml_stdlib="`"$OCAMLC" -where`"
984 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
986 # ocaml stdlib is beneath our prefix; use stdlib
987 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
989 # ocaml stdlib is outside our prefix; use libdir/ocaml
990 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
996 if test "$binding_prereqs_failed" = 1 ; then
997 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1000 dnl Determine if the compiler supports -fvisibility-inlines-hidden.
1001 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1003 dnl===-----------------------------------------------------------------------===
1005 dnl=== SECTION 10: Specify the output files and generate it
1007 dnl===-----------------------------------------------------------------------===
1009 dnl Configure header files
1010 dnl WARNING: dnl If you add or remove any of the following config headers, then
1011 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
1012 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1013 dnl files can be updated automatically when their *.in sources change.
1014 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
1015 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1016 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map.h])
1017 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set.h])
1018 AC_CONFIG_HEADERS([include/llvm/ADT/iterator.h])
1020 dnl Configure the makefile's configuration data
1021 AC_CONFIG_FILES([Makefile.config])
1023 dnl Configure the RPM spec file for LLVM
1024 AC_CONFIG_FILES([llvm.spec])
1026 dnl Configure doxygen's configuration file
1027 AC_CONFIG_FILES([docs/doxygen.cfg])
1029 dnl Do the first stage of configuration for llvm-config.in.
1030 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1032 dnl Do special configuration of Makefiles
1033 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1034 AC_CONFIG_MAKEFILE(Makefile)
1035 AC_CONFIG_MAKEFILE(Makefile.common)
1036 AC_CONFIG_MAKEFILE(examples/Makefile)
1037 AC_CONFIG_MAKEFILE(lib/Makefile)
1038 AC_CONFIG_MAKEFILE(runtime/Makefile)
1039 AC_CONFIG_MAKEFILE(test/Makefile)
1040 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1041 AC_CONFIG_MAKEFILE(unittests/Makefile)
1042 AC_CONFIG_MAKEFILE(tools/Makefile)
1043 AC_CONFIG_MAKEFILE(utils/Makefile)
1044 AC_CONFIG_MAKEFILE(projects/Makefile)
1045 AC_CONFIG_MAKEFILE(bindings/Makefile)
1046 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1048 dnl Finally, crank out the output