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]],[[2.8svn]],[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) 2003-2010 University of Illinois at Urbana-Champaign."])
39 AC_COPYRIGHT([Copyright (c) 2003-2010 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.
67 dnl One tricky part of doing this is that some projects depend upon other
68 dnl projects. For example, several projects rely upon the LLVM test suite.
69 dnl We want to configure those projects first so that their object trees are
70 dnl created before running the configure scripts of projects that depend upon
74 dnl Several projects use llvm-gcc, so configure that first
75 if test -d ${srcdir}/projects/llvm-gcc ; then
76 AC_CONFIG_SUBDIRS([projects/llvm-gcc])
79 dnl Several projects use the LLVM test suite, so configure it next.
80 if test -d ${srcdir}/projects/test-suite ; then
81 AC_CONFIG_SUBDIRS([projects/test-suite])
84 dnl llvm-test is the old name of the test-suite, kept here for backwards
86 if test -d ${srcdir}/projects/llvm-test ; then
87 AC_CONFIG_SUBDIRS([projects/llvm-test])
90 dnl Some projects use poolalloc; configure that next
91 if test -d ${srcdir}/projects/poolalloc ; then
92 AC_CONFIG_SUBDIRS([projects/poolalloc])
95 if test -d ${srcdir}/projects/llvm-poolalloc ; then
96 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
99 dnl Check for all other projects
100 for i in `ls ${srcdir}/projects`
102 if test -d ${srcdir}/projects/${i} ; then
105 sample) AC_CONFIG_SUBDIRS([projects/sample]) ;;
106 privbracket) AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
107 llvm-stacker) AC_CONFIG_SUBDIRS([projects/llvm-stacker]) ;;
108 llvm-reopt) AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
109 llvm-java) AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
110 llvm-tv) AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
111 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
112 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
119 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
125 dnl===-----------------------------------------------------------------------===
127 dnl=== SECTION 2: Architecture, target, and host checks
129 dnl===-----------------------------------------------------------------------===
131 dnl Check the target for which we're compiling and the host that will do the
132 dnl compilations. This will tell us which LLVM compiler will be used for
133 dnl compiling SSA into object code. This needs to be done early because
134 dnl following tests depend on it.
137 dnl Determine the platform type and cache its value. This helps us configure
138 dnl the System library to the correct build platform.
139 AC_CACHE_CHECK([type of operating system we're going to host on],
143 llvm_cv_link_all_option="-Wl,--whole-archive"
144 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
145 llvm_cv_os_type="AIX"
146 llvm_cv_platform_type="Unix" ;;
148 llvm_cv_link_all_option="-Wl,--whole-archive"
149 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
150 llvm_cv_os_type="IRIX"
151 llvm_cv_platform_type="Unix" ;;
153 llvm_cv_link_all_option="-Wl,--whole-archive"
154 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
155 llvm_cv_os_type="Cygwin"
156 llvm_cv_platform_type="Unix" ;;
158 llvm_cv_link_all_option="-Wl,-all_load"
159 llvm_cv_no_link_all_option="-Wl,-noall_load"
160 llvm_cv_os_type="Darwin"
161 llvm_cv_platform_type="Unix" ;;
163 llvm_cv_link_all_option="-Wl,-all_load"
164 llvm_cv_no_link_all_option="-Wl,-noall_load"
165 llvm_cv_os_type="Minix"
166 llvm_cv_platform_type="Unix" ;;
168 llvm_cv_link_all_option="-Wl,--whole-archive"
169 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
170 llvm_cv_os_type="FreeBSD"
171 llvm_cv_platform_type="Unix" ;;
173 llvm_cv_link_all_option="-Wl,--whole-archive"
174 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
175 llvm_cv_os_type="OpenBSD"
176 llvm_cv_platform_type="Unix" ;;
178 llvm_cv_link_all_option="-Wl,--whole-archive"
179 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
180 llvm_cv_os_type="NetBSD"
181 llvm_cv_platform_type="Unix" ;;
183 llvm_cv_link_all_option="-Wl,--whole-archive"
184 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
185 llvm_cv_os_type="DragonFly"
186 llvm_cv_platform_type="Unix" ;;
188 llvm_cv_link_all_option="-Wl,--whole-archive"
189 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
190 llvm_cv_os_type="HP-UX"
191 llvm_cv_platform_type="Unix" ;;
193 llvm_cv_link_all_option="-Wl,--whole-archive"
194 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
195 llvm_cv_os_type="Interix"
196 llvm_cv_platform_type="Unix" ;;
198 llvm_cv_link_all_option="-Wl,--whole-archive"
199 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
200 llvm_cv_os_type="Linux"
201 llvm_cv_platform_type="Unix" ;;
203 llvm_cv_link_all_option="-Wl,-z,allextract"
204 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
205 llvm_cv_os_type="SunOS"
206 llvm_cv_platform_type="Unix" ;;
208 llvm_cv_link_all_option="-Wl,-z,allextract"
209 llvm_cv_link_all_option="-Wl,-z,defaultextract"
210 llvm_cv_os_type="AuroraUX"
211 llvm_cv_platform_type="Unix" ;;
213 llvm_cv_link_all_option="-Wl,--whole-archive"
214 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
215 llvm_cv_os_type="Win32"
216 llvm_cv_platform_type="Win32" ;;
218 llvm_cv_link_all_option="-Wl,--whole-archive"
219 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
220 llvm_cv_os_type="MingW"
221 llvm_cv_platform_type="Win32" ;;
223 llvm_cv_link_all_option="-Wl,--whole-archive"
224 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
225 llvm_cv_os_type="Haiku"
226 llvm_cv_platform_type="Unix" ;;
228 llvm_cv_link_all_option="-Wl,--whole-archive"
229 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
230 llvm_cv_os_type="Freestanding"
231 llvm_cv_platform_type="Unix" ;;
233 llvm_cv_link_all_option="-Wl,--whole-archive"
234 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
235 llvm_cv_os_type="Freestanding"
236 llvm_cv_platform_type="Unix" ;;
238 llvm_cv_link_all_option=""
239 llvm_cv_no_link_all_option=""
240 llvm_cv_os_type="Unknown"
241 llvm_cv_platform_type="Unknown" ;;
244 AC_CACHE_CHECK([type of operating system we're going to target],
245 [llvm_cv_target_os_type],
248 llvm_cv_target_os_type="AIX" ;;
250 llvm_cv_target_os_type="IRIX" ;;
252 llvm_cv_target_os_type="Cygwin" ;;
254 llvm_cv_target_os_type="Darwin" ;;
256 llvm_cv_target_os_type="Minix" ;;
258 llvm_cv_target_os_type="FreeBSD" ;;
260 llvm_cv_target_os_type="OpenBSD" ;;
262 llvm_cv_target_os_type="NetBSD" ;;
264 llvm_cv_target_os_type="DragonFly" ;;
266 llvm_cv_target_os_type="HP-UX" ;;
268 llvm_cv_target_os_type="Interix" ;;
270 llvm_cv_target_os_type="Linux" ;;
272 llvm_cv_target_os_type="SunOS" ;;
274 llvm_cv_target_os_type="AuroraUX" ;;
276 llvm_cv_target_os_type="Win32" ;;
278 llvm_cv_target_os_type="MingW" ;;
280 llvm_cv_target_os_type="Haiku" ;;
282 llvm_cv_target_os_type="Freestanding" ;;
284 llvm_cv_target_os_type="Unknown" ;;
287 dnl Make sure we aren't attempting to configure for an unknown system
288 if test "$llvm_cv_os_type" = "Unknown" ; then
289 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
292 dnl Set the "OS" Makefile variable based on the platform type so the
293 dnl makefile can configure itself to specific build hosts
294 AC_SUBST(OS,$llvm_cv_os_type)
295 AC_SUBST(HOST_OS,$llvm_cv_os_type)
296 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
298 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
299 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
300 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
302 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
303 dnl This is used by lib/System to determine the basic kind of implementation
305 case $llvm_cv_platform_type in
307 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
308 AC_SUBST(LLVM_ON_UNIX,[1])
309 AC_SUBST(LLVM_ON_WIN32,[0])
312 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
313 AC_SUBST(LLVM_ON_UNIX,[0])
314 AC_SUBST(LLVM_ON_WIN32,[1])
318 dnl Determine what our target architecture is and configure accordingly.
319 dnl This will allow Makefiles to make a distinction between the hardware and
321 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
323 i?86-*) llvm_cv_target_arch="x86" ;;
324 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
325 sparc*-*) llvm_cv_target_arch="Sparc" ;;
326 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
327 alpha*-*) llvm_cv_target_arch="Alpha" ;;
328 arm*-*) llvm_cv_target_arch="ARM" ;;
329 mips-*) llvm_cv_target_arch="Mips" ;;
330 pic16-*) llvm_cv_target_arch="PIC16" ;;
331 xcore-*) llvm_cv_target_arch="XCore" ;;
332 msp430-*) llvm_cv_target_arch="MSP430" ;;
333 s390x-*) llvm_cv_target_arch="SystemZ" ;;
334 bfin-*) llvm_cv_target_arch="Blackfin" ;;
335 mblaze-*) llvm_cv_target_arch="MBlaze" ;;
336 *) llvm_cv_target_arch="Unknown" ;;
339 if test "$llvm_cv_target_arch" = "Unknown" ; then
340 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
343 # Determine the LLVM native architecture for the target
344 case "$llvm_cv_target_arch" in
345 x86) LLVM_NATIVE_ARCH="X86" ;;
346 x86_64) LLVM_NATIVE_ARCH="X86" ;;
347 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
350 dnl Define a substitution, ARCH, for the target architecture
351 AC_SUBST(ARCH,$llvm_cv_target_arch)
353 dnl Check for the endianness of the target
354 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
356 dnl Check for build platform executable suffix if we're crosscompiling
357 if test "$cross_compiling" = yes; then
358 AC_SUBST(LLVM_CROSS_COMPILING, [1])
360 ac_build_prefix=${build_alias}-
361 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
362 if test -z "$BUILD_CXX"; then
363 AC_CHECK_PROG(BUILD_CXX, g++, g++)
364 if test -z "$BUILD_CXX"; then
365 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
369 AC_SUBST(LLVM_CROSS_COMPILING, [0])
372 dnl Check to see if there's a "CVS" (or .svn or .git) directory indicating
373 dnl that this build is being done from a checkout. This sets up several
374 dnl defaults for the command line switches. When we build with a CVS directory,
375 dnl we get a debug with assertions turned on. Without, we assume a source
376 dnl release and we get an optimized build without assertions.
377 dnl See --enable-optimized and --enable-assertions below
378 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
381 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
387 dnl===-----------------------------------------------------------------------===
389 dnl=== SECTION 3: Command line arguments for the configure script.
391 dnl===-----------------------------------------------------------------------===
393 dnl --enable-optimized : check whether they want to do an optimized build:
394 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
395 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
396 if test ${enableval} = "no" ; then
397 AC_SUBST(ENABLE_OPTIMIZED,[[]])
399 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
402 dnl --enable-profiling : check whether they want to do a profile build:
403 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
404 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
405 if test ${enableval} = "no" ; then
406 AC_SUBST(ENABLE_PROFILING,[[]])
408 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
411 dnl --enable-assertions : check whether they want to turn on assertions or not:
412 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
413 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
414 if test ${enableval} = "yes" ; then
415 AC_SUBST(DISABLE_ASSERTIONS,[[]])
417 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
420 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
421 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
422 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
423 if test ${enableval} = "yes" ; then
424 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
425 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
427 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
428 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
431 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
432 AC_ARG_ENABLE(debug-runtime,
433 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
434 if test ${enableval} = "no" ; then
435 AC_SUBST(DEBUG_RUNTIME,[[]])
437 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
440 dnl --enable-debug-symbols : should even optimized compiler libraries
441 dnl have debug symbols?
442 AC_ARG_ENABLE(debug-symbols,
443 AS_HELP_STRING(--enable-debug-symbols,[Build compiler with debug symbols (default is NO if optimization is on and YES if it's off)]),,enableval=no)
444 if test ${enableval} = "no" ; then
445 AC_SUBST(DEBUG_SYMBOLS,[[]])
447 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
450 dnl --enable-jit: check whether they want to enable the jit
452 AS_HELP_STRING(--enable-jit,
453 [Enable Just In Time Compiling (default is YES)]),,
455 if test ${enableval} = "no"
459 case "$llvm_cv_target_arch" in
460 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
461 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
462 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
463 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
464 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
465 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
466 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
467 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
468 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
469 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
470 SystemZ) AC_SUBST(TARGET_HAS_JIT,0) ;;
471 Blackfin) AC_SUBST(TARGET_HAS_JIT,0) ;;
472 MBlaze) AC_SUBST(TARGET_HAS_JIT,0) ;;
473 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
477 dnl Allow enablement of doxygen generated documentation
478 AC_ARG_ENABLE(doxygen,
479 AS_HELP_STRING([--enable-doxygen],
480 [Build doxygen documentation (default is NO)]),,
483 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
484 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
485 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
486 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
489 dnl Allow disablement of threads
490 AC_ARG_ENABLE(threads,
491 AS_HELP_STRING([--enable-threads],
492 [Use threads if available (default is YES)]),,
495 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
496 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
497 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
498 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
500 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
502 dnl Allow building without position independent code
504 AS_HELP_STRING([--enable-pic],
505 [Build LLVM with Position Independent Code (default is YES)]),,
508 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
509 no) AC_SUBST(ENABLE_PIC,[0]) ;;
510 default) AC_SUBST(ENABLE_PIC,[1]) ;;
511 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
513 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
514 [Define if position independent code is enabled])
516 dnl Allow building a shared library and linking tools against it.
517 AC_ARG_ENABLE(shared,
518 AS_HELP_STRING([--enable-shared],
519 [Build a shared library and link tools against it (default is NO)]),,
522 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
523 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
524 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
525 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
528 dnl Allow specific targets to be specified for building (or not)
530 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
531 [Build specific host targets: all or target1,target2,... Valid targets are:
532 host, x86, x86_64, sparc, powerpc, alpha, arm, mips, spu, pic16,
533 xcore, msp430, systemz, blackfin, cbe, msil, and cpp (default=all)]),,
535 if test "$enableval" = host-only ; then
539 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha ARM Mips CellSPU PIC16 XCore MSP430 SystemZ Blackfin CBackend MSIL CppBackend MBlaze" ;;
540 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
542 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
543 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
544 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
545 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
546 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
547 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
548 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
549 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
550 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
551 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
552 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
553 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
554 blackfin) TARGETS_TO_BUILD="Blackfin $TARGETS_TO_BUILD" ;;
555 cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
556 msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
557 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
558 mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
559 host) case "$llvm_cv_target_arch" in
560 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
561 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
562 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
563 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
564 Alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
565 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
566 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
567 MBlaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
568 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
569 PIC16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
570 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
571 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
572 s390x) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
573 Blackfin) TARGETS_TO_BUILD="Blackfin $TARGETS_TO_BUILD" ;;
574 *) AC_MSG_ERROR([Can not set target to build]) ;;
576 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
581 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
583 # Determine whether we are building LLVM support for the native architecture.
584 # If so, define LLVM_NATIVE_ARCH to that LLVM target.
585 for a_target in $TARGETS_TO_BUILD; do
586 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
587 LLVM_NATIVE_ARCHTARGET="${LLVM_NATIVE_ARCH}Target"
588 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCHTARGET,
589 [LLVM architecture name for the native architecture, if available])
593 # Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
594 # target feature def files.
596 LLVM_ENUM_ASM_PRINTERS=""
597 LLVM_ENUM_ASM_PARSERS=""
598 LLVM_ENUM_DISASSEMBLERS=""
599 for target_to_build in $TARGETS_TO_BUILD; do
600 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
601 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmPrinter/Makefile ; then
602 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
604 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
605 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
607 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
608 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
611 AC_SUBST(LLVM_ENUM_TARGETS)
612 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
613 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
614 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
616 dnl Prevent the CBackend from using printf("%a") for floating point so older
617 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
618 dnl can still compile the CBE's output
619 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
620 [Enable C Backend output with hex floating point via %a (default is YES)]),,
623 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
624 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
625 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
626 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
628 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
629 [Define if CBE is enabled for printf %a output])
631 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
632 AC_ARG_WITH(llvmgccdir,
633 AS_HELP_STRING([--with-llvmgccdir],
634 [Specify location of llvm-gcc install dir (default searches PATH)]),,
637 default) WITH_LLVMGCCDIR=default ;;
638 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
639 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
642 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
644 AS_HELP_STRING([--with-llvmgcc],
645 [Specify location of llvm-gcc driver (default searches PATH)]),
646 LLVMGCC=$with_llvmgcc
649 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
651 AS_HELP_STRING([--with-llvmgxx],
652 [Specify location of llvm-g++ driver (default searches PATH)]),
653 LLVMGXX=$with_llvmgxx
656 if test -n "$LLVMGCC"; then
657 LLVMGCCCOMMAND="$LLVMGCC"
660 if test -n "$LLVMGXX"; then
661 LLVMGXXCOMMAND="$LLVMGXX"
664 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
665 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
668 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
669 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
672 dnl Allow a specific Clang compiler to be used with this LLVM config.
674 AS_HELP_STRING([--with-clang],
675 [Specify location of clang compiler (default is --with-built-clang)]),
676 [],[with_clang=default])
678 dnl Enable use of the built Clang.
679 AC_ARG_WITH(built-clang,
680 AS_HELP_STRING([--with-built-clang],
681 [Use the compiled Clang as the LLVM compiler (default=check)]),
682 [],[with_built_clang=check])
684 dnl Select the Clang compiler option.
686 dnl If --with-clang is given, always honor that; otherwise honor
687 dnl --with-built-clang, or check if we have the clang sources.
688 AC_MSG_CHECKING([clang compiler])
691 if test "$with_clang" != "default"; then
692 WITH_CLANGPATH="$with_clang"
693 if ! test -x "$WITH_CLANGPATH"; then
694 AC_MSG_ERROR([invalid --with-clang, path does not specify an executable])
696 elif test "$with_built_clang" = "yes"; then
698 elif test "$with_built_clang" = "no"; then
701 if test "$with_built_clang" != "check"; then
702 AC_MSG_ERROR([invalid value for --with-built-clang.])
705 if test -f ${srcdir}/tools/clang/README.txt; then
710 if ! test -z "$WITH_CLANGPATH"; then
711 AC_MSG_RESULT([$WITH_CLANGPATH])
712 WITH_CLANGXXPATH=`"$WITH_CLANGPATH" --print-prog-name=clang++`
713 elif test "$WITH_BUILT_CLANG" = "1"; then
714 AC_MSG_RESULT([built])
716 AC_MSG_RESULT([none])
718 AC_SUBST(CLANGPATH,$WITH_CLANGPATH)
719 AC_SUBST(CLANGXXPATH,$WITH_CLANGXXPATH)
720 AC_SUBST(ENABLE_BUILT_CLANG,$WITH_BUILT_CLANG)
722 dnl Override the option to use for optimized builds.
723 AC_ARG_WITH(optimize-option,
724 AS_HELP_STRING([--with-optimize-option],
725 [Select the compiler options to use for optimized builds]),,
727 AC_MSG_CHECKING([optimization flags])
730 case "$llvm_cv_os_type" in
731 FreeBSD) optimize_option=-O2 ;;
732 MingW) optimize_option=-O2 ;;
733 *) optimize_option=-O3 ;;
735 *) optimize_option="$withval" ;;
737 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
738 AC_MSG_RESULT([$optimize_option])
740 dnl Specify extra build options
741 AC_ARG_WITH(extra-options,
742 AS_HELP_STRING([--with-extra-options],
743 [Specify additional options to compile LLVM with]),,
746 default) EXTRA_OPTIONS= ;;
747 *) EXTRA_OPTIONS=$withval ;;
749 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
751 dnl Allow specific bindings to be specified for building (or not)
752 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
753 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
757 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
758 all ) BINDINGS_TO_BUILD="ocaml" ;;
759 none | no) BINDINGS_TO_BUILD="" ;;
760 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
762 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
763 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
769 dnl Allow the ocaml libdir to be overridden. This could go in a configure
770 dnl script for bindings/ocaml/configure, except that its auto value depends on
771 dnl OCAMLC, which is found here to support tests.
772 AC_ARG_WITH([ocaml-libdir],
773 [AS_HELP_STRING([--with-ocaml-libdir],
774 [Specify install location for ocaml bindings (default is stdlib)])],
778 auto) with_ocaml_libdir="$withval" ;;
779 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
780 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
783 AC_ARG_WITH(c-include-dirs,
784 AS_HELP_STRING([--with-c-include-dirs],
785 [Colon separated list of directories clang will search for headers]),,
787 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
788 [Directories clang will search for headers])
790 AC_ARG_WITH(cxx-include-root,
791 AS_HELP_STRING([--with-cxx-include-root],
792 [Directory with the libstdc++ headers.]),,
794 AC_DEFINE_UNQUOTED(CXX_INCLUDE_ROOT,"$withval",
795 [Directory with the libstdc++ headers.])
797 AC_ARG_WITH(cxx-include-arch,
798 AS_HELP_STRING([--with-cxx-include-arch],
799 [Architecture of the libstdc++ headers.]),,
801 AC_DEFINE_UNQUOTED(CXX_INCLUDE_ARCH,"$withval",
802 [Arch the libstdc++ headers.])
804 AC_ARG_WITH(cxx-include-32bit-dir,
805 AS_HELP_STRING([--with-cxx-include-32bit-dir],
806 [32 bit multilib dir.]),,
808 AC_DEFINE_UNQUOTED(CXX_INCLUDE_32BIT_DIR,"$withval",
809 [32 bit multilib directory.])
811 AC_ARG_WITH(cxx-include-64bit-dir,
812 AS_HELP_STRING([--with-cxx-include-64bit-dir],
813 [64 bit multilib directory.]),,
815 AC_DEFINE_UNQUOTED(CXX_INCLUDE_64BIT_DIR,"$withval",
816 [64 bit multilib directory.])
818 dnl Allow linking of LLVM with GPLv3 binutils code.
819 AC_ARG_WITH(binutils-include,
820 AS_HELP_STRING([--with-binutils-include],
821 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
824 default) WITH_BINUTILS_INCDIR=default ;;
825 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
826 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
828 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
829 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
830 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
831 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
832 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
836 dnl --enable-libffi : check whether the user wants to turn off libffi:
837 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
838 --enable-libffi,[Check for the presence of libffi (default is NO)]),
839 [case "$enableval" in
840 yes) llvm_cv_enable_libffi="yes" ;;
841 no) llvm_cv_enable_libffi="no" ;;
842 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
844 llvm_cv_enable_libffi=no)
846 dnl Only Windows needs dynamic libCompilerDriver to support plugins.
847 if test "$llvm_cv_os_type" = "Win32" ; then
853 dnl --enable-llvmc-dynamic : should LLVMC link libCompilerDriver dynamically?
854 AC_ARG_ENABLE(llvmc-dynamic,AS_HELP_STRING(
855 --enable-llvmc-dynamic,
856 [Link LLVMC dynamically (default is NO, unless on Win32)]),,
857 enableval=$llvmc_dynamic)
858 if test ${enableval} = "yes" && test "$ENABLE_PIC" -eq 1 ; then
859 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[ENABLE_LLVMC_DYNAMIC=1]])
861 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[]])
864 dnl --enable-llvmc-dynamic-plugins : should LLVMC support dynamic plugins?
865 AC_ARG_ENABLE(llvmc-dynamic-plugins,AS_HELP_STRING(
866 --enable-llvmc-dynamic-plugins,
867 [Enable dynamic LLVMC plugins (default is YES)]),,
869 if test ${enableval} = "yes" ; then
870 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[ENABLE_LLVMC_DYNAMIC_PLUGINS=1]])
872 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[]])
875 dnl===-----------------------------------------------------------------------===
877 dnl=== SECTION 4: Check for programs we need and that they are the right version
879 dnl===-----------------------------------------------------------------------===
881 dnl Check for compilation tools
889 dnl Check for the tools that the makefiles require
892 AC_PATH_PROG(CMP, [cmp], [cmp])
893 AC_PATH_PROG(CP, [cp], [cp])
894 AC_PATH_PROG(DATE, [date], [date])
895 AC_PATH_PROG(FIND, [find], [find])
896 AC_PATH_PROG(GREP, [grep], [grep])
897 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
898 AC_PATH_PROG(MV, [mv], [mv])
900 AC_CHECK_TOOL(AR, ar, false)
901 AC_PATH_PROG(RM, [rm], [rm])
902 AC_PATH_PROG(SED, [sed], [sed])
903 AC_PATH_PROG(TAR, [tar], [gtar])
904 AC_PATH_PROG(BINPWD,[pwd], [pwd])
906 dnl Looking for misc. graph plotting software
907 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
908 if test "$GRAPHVIZ" != "echo Graphviz" ; then
909 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
910 dnl If we're targeting for mingw we should emit windows paths, not msys
911 if test "$llvm_cv_os_type" = "MingW" ; then
912 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
914 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
915 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
917 AC_PATH_PROG(DOT, [dot], [echo dot])
918 if test "$DOT" != "echo dot" ; then
919 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
920 dnl If we're targeting for mingw we should emit windows paths, not msys
921 if test "$llvm_cv_os_type" = "MingW" ; then
922 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
924 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
925 [Define to path to dot program if found or 'echo dot' otherwise])
927 AC_PATH_PROG(FDP, [fdp], [echo fdp])
928 if test "$FDP" != "echo fdp" ; then
929 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
930 dnl If we're targeting for mingw we should emit windows paths, not msys
931 if test "$llvm_cv_os_type" = "MingW" ; then
932 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
934 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
935 [Define to path to fdp program if found or 'echo fdp' otherwise])
937 AC_PATH_PROG(NEATO, [neato], [echo neato])
938 if test "$NEATO" != "echo neato" ; then
939 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
940 dnl If we're targeting for mingw we should emit windows paths, not msys
941 if test "$llvm_cv_os_type" = "MingW" ; then
942 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
944 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
945 [Define to path to neato program if found or 'echo neato' otherwise])
947 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
948 if test "$TWOPI" != "echo twopi" ; then
949 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
950 dnl If we're targeting for mingw we should emit windows paths, not msys
951 if test "$llvm_cv_os_type" = "MingW" ; then
952 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
954 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
955 [Define to path to twopi program if found or 'echo twopi' otherwise])
957 AC_PATH_PROG(CIRCO, [circo], [echo circo])
958 if test "$CIRCO" != "echo circo" ; then
959 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
960 dnl If we're targeting for mingw we should emit windows paths, not msys
961 if test "$llvm_cv_os_type" = "MingW" ; then
962 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
964 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
965 [Define to path to circo program if found or 'echo circo' otherwise])
967 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
968 if test "$GV" != "echo gv" ; then
969 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
970 dnl If we're targeting for mingw we should emit windows paths, not msys
971 if test "$llvm_cv_os_type" = "MingW" ; then
972 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
974 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
975 [Define to path to gv program if found or 'echo gv' otherwise])
977 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
978 if test "$DOTTY" != "echo dotty" ; then
979 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
980 dnl If we're targeting for mingw we should emit windows paths, not msys
981 if test "$llvm_cv_os_type" = "MingW" ; then
982 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
984 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
985 [Define to path to dotty program if found or 'echo dotty' otherwise])
988 dnl Look for a sufficiently recent version of Perl.
989 LLVM_PROG_PERL([5.006])
991 if test x"$PERL" = xnone; then
992 AC_SUBST(HAVE_PERL,0)
993 AC_MSG_ERROR([perl is required but was not found, please install it])
995 AC_SUBST(HAVE_PERL,1)
998 dnl Find the install program
1001 dnl Checks for documentation and testing tools that we can do without. If these
1002 dnl are not found then they are set to "true" which always succeeds but does
1003 dnl nothing. This just lets the build output show that we could have done
1004 dnl something if the tool was available.
1005 AC_PATH_PROG(BZIP2, [bzip2])
1006 AC_PATH_PROG(CAT, [cat])
1007 AC_PATH_PROG(DOXYGEN, [doxygen])
1008 AC_PATH_PROG(GROFF, [groff])
1009 AC_PATH_PROG(GZIP, [gzip])
1010 AC_PATH_PROG(POD2HTML, [pod2html])
1011 AC_PATH_PROG(POD2MAN, [pod2man])
1012 AC_PATH_PROG(PDFROFF, [pdfroff])
1013 AC_PATH_PROG(RUNTEST, [runtest])
1015 AC_PATH_PROG(ZIP, [zip])
1016 AC_PATH_PROGS(OCAMLC, [ocamlc])
1017 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1018 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1019 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1020 AC_PATH_PROGS(GAS, [gas as])
1022 dnl Determine whether the linker supports the -R option.
1025 dnl Determine whether the linker supports the -export-dynamic option.
1026 AC_LINK_EXPORT_DYNAMIC
1028 dnl Determine whether the linker supports the -retain-symbols-file option.
1029 AC_LINK_RETAIN_SYMBOLS_FILE
1031 dnl Check for libtool and the library that has dlopen function (which must come
1032 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1037 if test "$WITH_LLVMGCCDIR" = "default" ; then
1038 LLVMGCC="llvm-gcc${EXEEXT}"
1039 LLVMGXX="llvm-g++${EXEEXT}"
1040 LLVMGCCCOMMAND="$LLVMGCC"
1041 LLVMGXXCOMMAND="$LLVMGXX"
1042 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
1043 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
1044 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
1045 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
1047 if test -z "$LLVMGCC"; then
1048 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
1049 LLVMGCCCOMMAND="$LLVMGCC"
1051 if test -z "$LLVMGXX"; then
1052 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
1053 LLVMGXXCOMMAND="$LLVMGXX"
1056 AC_SUBST(LLVMGCC,$LLVMGCC)
1057 AC_SUBST(LLVMGXX,$LLVMGXX)
1058 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
1059 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
1062 dnl Select the LLVM capable compiler to use, we default to using llvm-gcc if
1063 dnl found, otherwise clang if available.
1065 AS_HELP_STRING([--with-llvmcc=<name>],
1066 [Choose the LLVM capable compiler to use (llvm-gcc, clang, or none; default=check)]),
1067 [],[with_llvmcc=check])
1068 AC_MSG_CHECKING([LLVM capable compiler])
1069 if test "$with_llvmcc" != "check"; then
1070 if (test "$with_llvmcc" != "llvm-gcc" &&
1071 test "$with_llvmcc" != "clang" &&
1072 test "$with_llvmcc" != "none"); then
1073 AC_MSG_ERROR([invalid value for --with-llvmcc, expected 'llvm-gcc', 'clang', or 'none'.])
1075 WITH_LLVMCC="$with_llvmcc"
1076 elif test -n "$LLVMGCC"; then
1077 WITH_LLVMCC=llvm-gcc
1078 elif test -n "$WITH_CLANGPATH" || test "$WITH_BUILT_CLANG" -ne "0"; then
1083 AC_MSG_RESULT([$WITH_LLVMCC])
1084 AC_SUBST(LLVMCC_OPTION,$WITH_LLVMCC)
1086 AC_MSG_CHECKING([tool compatibility])
1088 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1089 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1090 dnl to support those options.
1091 dnl "icc" emits gcc signatures
1092 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1104 if test "$GCC" != "yes" && test "$ICC" != "yes"
1106 AC_MSG_ERROR([gcc|icc required but not found])
1109 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
1110 if test "$GXX" != "yes" && test "$IXX" != "yes"
1112 AC_MSG_ERROR([g++|icc required but not found])
1115 dnl Verify that GCC is version 3.0 or higher
1116 if test "$GCC" = "yes"
1118 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
1119 #error Unsupported GCC version
1121 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1124 dnl Check for GNU Make. We use its extensions, so don't build without it
1125 if test -z "$llvm_cv_gnu_make_command"
1127 AC_MSG_ERROR([GNU Make required but not found])
1130 dnl Tool compatibility is okay if we make it here.
1133 dnl Check optional compiler flags.
1134 AC_MSG_CHECKING([optional compiler flags])
1135 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1136 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1137 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS])
1139 dnl===-----------------------------------------------------------------------===
1141 dnl=== SECTION 5: Check for libraries
1143 dnl===-----------------------------------------------------------------------===
1146 if test "$llvm_cv_os_type" = "MingW" ; then
1147 AC_CHECK_LIB(imagehlp, main)
1148 AC_CHECK_LIB(psapi, main)
1151 dnl dlopen() is required for plugin support.
1152 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1153 [Define if dlopen() is available on this platform.]),
1154 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1156 dnl libffi is optional; used to call external functions from the interpreter
1157 if test "$llvm_cv_enable_libffi" = "yes" ; then
1158 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1159 [Define if libffi is available on this platform.]),
1160 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1163 dnl mallinfo is optional; the code can compile (minus features) without it
1164 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1165 [Define if mallinfo() is available on this platform.]))
1167 dnl pthread locking functions are optional - but llvm will not be thread-safe
1169 if test "$ENABLE_THREADS" -eq 1 ; then
1170 AC_CHECK_LIB(pthread, pthread_mutex_init)
1171 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1172 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1173 [Have pthread_mutex_lock]))
1174 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1175 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1176 [Have pthread_rwlock_init]))
1177 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1178 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1179 [Have pthread_getspecific]))
1182 dnl Allow extra x86-disassembler library
1184 AS_HELP_STRING([--with-udis86=<path>],
1185 [Use udis86 external x86 disassembler library]),
1187 AC_SUBST(USE_UDIS86, [1])
1190 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1192 AC_CHECK_LIB(udis86, ud_init, [], [
1193 echo "Error! You need to have libudis86 around."
1197 AC_SUBST(USE_UDIS86, [0]))
1198 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1199 [Define if use udis86 library])
1201 dnl Allow OProfile support for JIT output.
1202 AC_ARG_WITH(oprofile,
1203 AS_HELP_STRING([--with-oprofile=<prefix>],
1204 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1206 AC_SUBST(USE_OPROFILE, [1])
1208 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1210 AC_SUBST(USE_OPROFILE, [0]) ;;
1211 *) llvm_cv_oppath="${withval}/lib/oprofile"
1212 CPPFLAGS="-I${withval}/include";;
1214 if test -n "$llvm_cv_oppath" ; then
1215 LIBS="$LIBS -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1216 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1217 dnl libbfd is not included properly in libopagent in some Debian
1218 dnl versions. If libbfd isn't found at all, we assume opagent works
1220 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1221 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1222 echo "Error! You need to have libopagent around."
1225 AC_CHECK_HEADER([opagent.h], [], [
1226 echo "Error! You need to have opagent.h around."
1232 AC_SUBST(USE_OPROFILE, [0])
1234 AC_DEFINE_UNQUOTED([USE_OPROFILE],$USE_OPROFILE,
1235 [Define if we have the oprofile JIT-support library])
1237 dnl===-----------------------------------------------------------------------===
1239 dnl=== SECTION 6: Check for header files
1241 dnl===-----------------------------------------------------------------------===
1243 dnl First, use autoconf provided macros for specific headers that we need
1244 dnl We don't check for ancient stuff or things that are guaranteed to be there
1245 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1246 dnl Generally we're looking for POSIX headers.
1248 AC_HEADER_MMAP_ANONYMOUS
1254 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
1255 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1256 AC_CHECK_HEADERS([utime.h windows.h])
1257 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
1258 AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
1259 AC_CHECK_HEADERS([valgrind/valgrind.h])
1260 if test "$ENABLE_THREADS" -eq 1 ; then
1261 AC_CHECK_HEADERS(pthread.h,
1262 AC_SUBST(HAVE_PTHREAD, 1),
1263 AC_SUBST(HAVE_PTHREAD, 0))
1265 AC_SUBST(HAVE_PTHREAD, 0)
1268 dnl Try to find ffi.h.
1269 if test "$llvm_cv_enable_libffi" = "yes" ; then
1270 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1273 dnl===-----------------------------------------------------------------------===
1275 dnl=== SECTION 7: Check for types and structures
1277 dnl===-----------------------------------------------------------------------===
1282 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1284 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1285 AC_CHECK_TYPES([uint64_t],,
1286 AC_CHECK_TYPES([u_int64_t],,
1287 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1289 dnl===-----------------------------------------------------------------------===
1291 dnl=== SECTION 8: Check for specific functions needed
1293 dnl===-----------------------------------------------------------------------===
1295 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1296 AC_CHECK_FUNCS([powf fmodf strtof round ])
1297 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1298 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1299 AC_CHECK_FUNCS([mktemp posix_spawn realpath sbrk setrlimit strdup ])
1300 AC_CHECK_FUNCS([strerror strerror_r strerror_s setenv ])
1301 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1302 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
1306 dnl Check for variations in the Standard C++ library and STL. These macros are
1307 dnl provided by LLVM in the autoconf/m4 directory.
1311 dnl Check for mmap support.We also need to know if /dev/zero is required to
1312 dnl be opened for allocating RWX memory.
1313 dnl Make sure we aren't attempting to configure for an unknown system
1314 if test "$llvm_cv_platform_type" = "Unix" ; then
1317 AC_NEED_DEV_ZERO_FOR_MMAP
1319 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1321 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1323 if test "$ac_cv_func_mmap_file" = "no"
1325 AC_MSG_WARN([mmap() of files required but not found])
1329 dnl atomic builtins are required for threading support.
1330 AC_MSG_CHECKING(for GCC atomic builtins)
1334 volatile unsigned long val = 1;
1335 __sync_synchronize();
1336 __sync_val_compare_and_swap(&val, 1, 0);
1337 __sync_add_and_fetch(&val, 1);
1338 __sync_sub_and_fetch(&val, 1);
1343 AC_DEFINE(LLVM_MULTITHREADED, 1, Build multithreading support into LLVM),
1345 AC_DEFINE(LLVM_MULTITHREADED, 0, Build multithreading support into LLVM)
1346 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]))
1349 dnl===-----------------------------------------------------------------------===
1351 dnl=== SECTION 9: Additional checks, variables, etc.
1353 dnl===-----------------------------------------------------------------------===
1355 dnl Handle 32-bit linux systems running a 64-bit kernel.
1356 dnl This has to come after section 4 because it invokes the compiler.
1357 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1359 if test "$llvm_cv_linux_mixed" = "yes"; then
1360 llvm_cv_target_arch="x86"
1365 dnl Check, whether __dso_handle is present
1366 AC_CHECK_FUNCS([__dso_handle])
1368 dnl See if the llvm-gcc executable can compile to LLVM assembly
1369 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
1370 [llvm_cv_llvmgcc_sanity="no"
1371 if test -x "$LLVMGCC" ; then
1372 cp /dev/null conftest.c
1373 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
1374 grep 'target datalayout =' > /dev/null 2>&1
1375 if test $? -eq 0 ; then
1376 llvm_cv_llvmgcc_sanity="yes"
1381 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
1382 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
1383 AC_MSG_CHECKING([llvm-gcc component support])
1384 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
1385 AC_SUBST(LLVMCC1,$llvmcc1path)
1386 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
1387 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
1388 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
1389 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
1390 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ ]*\).*/\1/'`]
1391 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
1395 dnl Propagate the shared library extension that the libltdl checks did to
1396 dnl the Makefiles so we can use it there too
1397 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1399 dnl Propagate the run-time library path variable that the libltdl
1400 dnl checks found to the Makefiles so we can use it there too
1401 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1403 # Translate the various configuration directories and other basic
1404 # information into substitutions that will end up in Makefile.config.in
1405 # that these configured values can be used by the makefiles
1406 if test "${prefix}" = "NONE" ; then
1409 eval LLVM_PREFIX="${prefix}";
1410 eval LLVM_BINDIR="${prefix}/bin";
1411 eval LLVM_LIBDIR="${prefix}/lib";
1412 eval LLVM_DATADIR="${prefix}/share/llvm";
1413 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1414 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1415 eval LLVM_INCLUDEDIR="${prefix}/include";
1416 eval LLVM_INFODIR="${prefix}/info";
1417 eval LLVM_MANDIR="${prefix}/man";
1418 LLVM_CONFIGTIME=`date`
1419 AC_SUBST(LLVM_PREFIX)
1420 AC_SUBST(LLVM_BINDIR)
1421 AC_SUBST(LLVM_LIBDIR)
1422 AC_SUBST(LLVM_DATADIR)
1423 AC_SUBST(LLVM_DOCSDIR)
1424 AC_SUBST(LLVM_ETCDIR)
1425 AC_SUBST(LLVM_INCLUDEDIR)
1426 AC_SUBST(LLVM_INFODIR)
1427 AC_SUBST(LLVM_MANDIR)
1428 AC_SUBST(LLVM_CONFIGTIME)
1430 # Place the various directores into the config.h file as #defines so that we
1431 # can know about the installation paths within LLVM.
1432 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1433 [Installation prefix directory])
1434 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1435 [Installation directory for binary executables])
1436 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
1437 [Installation directory for libraries])
1438 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1439 [Installation directory for data files])
1440 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1441 [Installation directory for documentation])
1442 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1443 [Installation directory for config files])
1444 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1445 [Installation directory for include files])
1446 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1447 [Installation directory for .info files])
1448 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1449 [Installation directory for man pages])
1450 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1451 [Time at which LLVM was configured])
1452 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
1453 [Host triple we were built on])
1455 # Determine which bindings to build.
1456 if test "$BINDINGS_TO_BUILD" = auto ; then
1457 BINDINGS_TO_BUILD=""
1458 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1459 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1462 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1464 # This isn't really configurey, but it avoids having to repeat the list in
1466 AC_SUBST(ALL_BINDINGS,ocaml)
1468 # Do any work necessary to ensure that bindings have what they need.
1469 binding_prereqs_failed=0
1470 for a_binding in $BINDINGS_TO_BUILD ; do
1471 case "$a_binding" in
1473 if test "x$OCAMLC" = x ; then
1474 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1475 binding_prereqs_failed=1
1477 if test "x$OCAMLDEP" = x ; then
1478 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1479 binding_prereqs_failed=1
1481 if test "x$OCAMLOPT" = x ; then
1482 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1483 dnl ocamlopt is optional!
1485 if test "x$with_ocaml_libdir" != xauto ; then
1486 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1488 ocaml_stdlib="`"$OCAMLC" -where`"
1489 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1491 # ocaml stdlib is beneath our prefix; use stdlib
1492 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1494 # ocaml stdlib is outside our prefix; use libdir/ocaml
1495 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
1501 if test "$binding_prereqs_failed" = 1 ; then
1502 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1505 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1506 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1508 dnl Determine linker rpath flag
1509 if test "$llvm_cv_link_use_r" = "yes" ; then
1516 dnl Determine linker rdynamic flag
1517 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1518 RDYNAMIC="-Wl,-export-dynamic"
1524 dnl===-----------------------------------------------------------------------===
1526 dnl=== SECTION 10: Specify the output files and generate it
1528 dnl===-----------------------------------------------------------------------===
1530 dnl Configure header files
1531 dnl WARNING: dnl If you add or remove any of the following config headers, then
1532 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
1533 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1534 dnl files can be updated automatically when their *.in sources change.
1535 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
1536 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1537 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1538 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1539 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1540 AC_CONFIG_HEADERS([include/llvm/System/DataTypes.h])
1542 dnl Configure the makefile's configuration data
1543 AC_CONFIG_FILES([Makefile.config])
1545 dnl Configure the RPM spec file for LLVM
1546 AC_CONFIG_FILES([llvm.spec])
1548 dnl Configure llvmc's Base plugin
1549 AC_CONFIG_FILES([tools/llvmc/plugins/Base/Base.td])
1551 dnl Do the first stage of configuration for llvm-config.in.
1552 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1554 dnl Do special configuration of Makefiles
1555 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1556 AC_CONFIG_MAKEFILE(Makefile)
1557 AC_CONFIG_MAKEFILE(Makefile.common)
1558 AC_CONFIG_MAKEFILE(examples/Makefile)
1559 AC_CONFIG_MAKEFILE(lib/Makefile)
1560 AC_CONFIG_MAKEFILE(runtime/Makefile)
1561 AC_CONFIG_MAKEFILE(test/Makefile)
1562 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1563 AC_CONFIG_MAKEFILE(unittests/Makefile)
1564 AC_CONFIG_MAKEFILE(tools/Makefile)
1565 AC_CONFIG_MAKEFILE(utils/Makefile)
1566 AC_CONFIG_MAKEFILE(projects/Makefile)
1567 AC_CONFIG_MAKEFILE(bindings/Makefile)
1568 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1570 dnl Finally, crank out the output