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 $llvm_cv_platform_type in
203 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
204 AC_SUBST(LLVM_ON_UNIX,[1])
205 AC_SUBST(LLVM_ON_WIN32,[0])
208 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
209 AC_SUBST(LLVM_ON_UNIX,[0])
210 AC_SUBST(LLVM_ON_WIN32,[1])
214 dnl Determine what our target architecture is and configure accordingly.
215 dnl This will allow Makefiles to make a distinction between the hardware and
217 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
219 i?86-*) llvm_cv_target_arch="x86" ;;
220 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
221 sparc*-*) llvm_cv_target_arch="Sparc" ;;
222 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
223 alpha*-*) llvm_cv_target_arch="Alpha" ;;
224 ia64-*) llvm_cv_target_arch="IA64" ;;
225 arm*-*) llvm_cv_target_arch="ARM" ;;
226 mips-*) llvm_cv_target_arch="Mips" ;;
227 pic16-*) llvm_cv_target_arch="PIC16" ;;
228 xcore-*) llvm_cv_target_arch="XCore" ;;
229 msp430-*) llvm_cv_target_arch="MSP430" ;;
230 s390x-*) llvm_cv_target_arch="SystemZ" ;;
231 *) llvm_cv_target_arch="Unknown" ;;
234 if test "$llvm_cv_target_arch" = "Unknown" ; then
235 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
238 # Determine the LLVM native architecture for the target
239 case "$llvm_cv_target_arch" in
240 x86) LLVM_NATIVE_ARCH="X86" ;;
241 x86_64) LLVM_NATIVE_ARCH="X86" ;;
242 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
245 dnl Define a substitution, ARCH, for the target architecture
246 AC_SUBST(ARCH,$llvm_cv_target_arch)
248 dnl Check for the endianness of the target
249 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
251 dnl Check for build platform executable suffix if we're crosscompiling
252 if test "$cross_compiling" = yes; then
253 AC_SUBST(LLVM_CROSS_COMPILING, [1])
255 ac_build_prefix=${build_alias}-
256 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
257 if test -z "$BUILD_CXX"; then
258 AC_CHECK_PROG(BUILD_CXX, g++, g++)
259 if test -z "$BUILD_CXX"; then
260 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
264 AC_SUBST(LLVM_CROSS_COMPILING, [0])
267 dnl Check to see if there's a "CVS" (or .svn or .git) directory indicating
268 dnl that this build is being done from a checkout. This sets up several
269 dnl defaults for the command line switches. When we build with a CVS directory,
270 dnl we get a debug with assertions turned on. Without, we assume a source
271 dnl release and we get an optimized build without assertions.
272 dnl See --enable-optimized and --enable-assertions below
273 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
276 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
282 dnl===-----------------------------------------------------------------------===
284 dnl=== SECTION 3: Command line arguments for the configure script.
286 dnl===-----------------------------------------------------------------------===
288 dnl --enable-optimized : check whether they want to do an optimized build:
289 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
290 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
291 if test ${enableval} = "no" ; then
292 AC_SUBST(ENABLE_OPTIMIZED,[[]])
294 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
297 dnl --enable-profiling : check whether they want to do a profile build:
298 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
299 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
300 if test ${enableval} = "no" ; then
301 AC_SUBST(ENABLE_PROFILING,[[]])
303 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
306 dnl --enable-assertions : check whether they want to turn on assertions or not:
307 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
308 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
309 if test ${enableval} = "yes" ; then
310 AC_SUBST(DISABLE_ASSERTIONS,[[]])
312 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
315 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
316 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
317 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
318 if test ${enableval} = "yes" ; then
319 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
320 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
322 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
323 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
326 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
327 AC_ARG_ENABLE(debug-runtime,
328 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
329 if test ${enableval} = "no" ; then
330 AC_SUBST(DEBUG_RUNTIME,[[]])
332 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
335 dnl --enable-jit: check whether they want to enable the jit
337 AS_HELP_STRING(--enable-jit,
338 [Enable Just In Time Compiling (default is YES)]),,
340 if test ${enableval} = "no"
344 case "$llvm_cv_target_arch" in
345 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
346 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
347 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
348 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
349 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
350 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
351 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
352 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
353 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
354 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
355 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
356 SystemZ) AC_SUBST(TARGET_HAS_JIT,0) ;;
357 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
361 dnl Allow enablement of doxygen generated documentation
362 AC_ARG_ENABLE(doxygen,
363 AS_HELP_STRING([--enable-doxygen],
364 [Build doxygen documentation (default is NO)]),,
367 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
368 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
369 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
370 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
373 dnl Allow disablement of threads
374 AC_ARG_ENABLE(threads,
375 AS_HELP_STRING([--enable-threads],
376 [Use threads if available (default is YES)]),,
379 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
380 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
381 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
382 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
384 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
386 dnl Allow building without position independent code
388 AS_HELP_STRING([--enable-pic],
389 [Build LLVM with Position Independent Code (default is YES)]),,
392 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
393 no) AC_SUBST(ENABLE_PIC,[0]) ;;
394 default) AC_SUBST(ENABLE_PIC,[1]) ;;
395 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
397 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
398 [Define if position independent code is enabled])
400 dnl Allow specific targets to be specified for building (or not)
402 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
403 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
406 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips CellSPU PIC16 XCore MSP430 SystemZ CBackend MSIL CppBackend" ;;
408 case "$llvm_cv_target_arch" in
409 x86) TARGETS_TO_BUILD="X86" ;;
410 x86_64) TARGETS_TO_BUILD="X86" ;;
411 Sparc) TARGETS_TO_BUILD="Sparc" ;;
412 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
413 Alpha) TARGETS_TO_BUILD="Alpha" ;;
414 IA64) TARGETS_TO_BUILD="IA64" ;;
415 ARM) TARGETS_TO_BUILD="ARM" ;;
416 Mips) TARGETS_TO_BUILD="Mips" ;;
417 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;;
418 PIC16) TARGETS_TO_BUILD="PIC16" ;;
419 XCore) TARGETS_TO_BUILD="XCore" ;;
420 MSP430) TARGETS_TO_BUILD="MSP430" ;;
421 SystemZ) TARGETS_TO_BUILD="SystemZ" ;;
422 *) AC_MSG_ERROR([Can not set target to build]) ;;
425 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
427 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
428 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
429 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
430 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
431 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
432 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
433 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
434 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
435 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
436 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
437 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
438 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
439 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
440 cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
441 msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
442 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
443 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
448 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
450 # Determine whether we are building LLVM support for the native architecture.
451 # If so, define LLVM_NATIVE_ARCH to that LLVM target.
452 for a_target in $TARGETS_TO_BUILD; do
453 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
454 LLVM_NATIVE_ARCHTARGET="${LLVM_NATIVE_ARCH}Target"
455 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCHTARGET,
456 [LLVM architecture name for the native architecture, if available])
460 # Build the LLVM_TARGET and LLVM_ASM_PRINTER macro uses for
461 # Targets.def and AsmPrinters.def.
463 LLVM_ENUM_ASM_PRINTERS=""
464 for target_to_build in $TARGETS_TO_BUILD; do
465 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
466 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmPrinter/Makefile ; then
467 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
470 AC_SUBST(LLVM_ENUM_TARGETS)
471 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
473 dnl Prevent the CBackend from using printf("%a") for floating point so older
474 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
475 dnl can still compile the CBE's output
476 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
477 [Enable C Backend output with hex floating point via %a (default is YES)]),,
480 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
481 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
482 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
483 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
485 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
486 [Define if CBE is enabled for printf %a output])
488 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
489 AC_ARG_WITH(llvmgccdir,
490 AS_HELP_STRING([--with-llvmgccdir],
491 [Specify location of llvm-gcc install dir (default searches PATH)]),,
494 default) WITH_LLVMGCCDIR=default ;;
495 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
496 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
499 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
501 AS_HELP_STRING([--with-llvmgcc],
502 [Specify location of llvm-gcc driver (default searches PATH)]),
503 LLVMGCC=$with_llvmgcc
506 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
508 AS_HELP_STRING([--with-llvmgxx],
509 [Specify location of llvm-g++ driver (default searches PATH)]),
510 LLVMGXX=$with_llvmgxx
513 if test -n "$LLVMGCC"; then
514 LLVMGCCCOMMAND="$LLVMGCC"
517 if test -n "$LLVMGXX"; then
518 LLVMGXXCOMMAND="$LLVMGXX"
521 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
522 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
525 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
526 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
529 dnl Specify extra build options
530 AC_ARG_WITH(extra-options,
531 AS_HELP_STRING([--with-extra-options],
532 [Specify additional options to compile LLVM with]),,
535 default) EXTRA_OPTIONS= ;;
536 *) EXTRA_OPTIONS=$withval ;;
538 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
540 dnl Allow specific bindings to be specified for building (or not)
541 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
542 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
546 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
547 all ) BINDINGS_TO_BUILD="ocaml" ;;
548 none | no) BINDINGS_TO_BUILD="" ;;
549 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
551 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
552 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
558 dnl Allow the ocaml libdir to be overridden. This could go in a configure
559 dnl script for bindings/ocaml/configure, except that its auto value depends on
560 dnl OCAMLC, which is found here to support tests.
561 AC_ARG_WITH([ocaml-libdir],
562 [AS_HELP_STRING([--with-ocaml-libdir],
563 [Specify install location for ocaml bindings (default is stdlib)])],
567 auto) with_ocaml_libdir="$withval" ;;
568 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
569 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
572 dnl Allow linking of LLVM with GPLv3 binutils code.
573 AC_ARG_WITH(binutils-include,
574 AS_HELP_STRING([--with-binutils-include],
575 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
578 default) WITH_BINUTILS_INCDIR=default ;;
579 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
580 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
582 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
583 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
584 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
585 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
586 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
590 dnl --enable-libffi : check whether the user wants to turn off libffi:
591 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
592 --enable-libffi,[Check for the presence of libffi (default is YES)]),,
595 yes) llvm_cv_enable_libffi="yes" ;;
596 no) llvm_cv_enable_libffi="no" ;;
597 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
600 dnl Only Windows needs dynamic libCompilerDriver to support plugins.
601 if test "$llvm_cv_os_type" = "Win32" ; then
607 dnl --enable-llvmc-dynamic : should LLVMC link libCompilerDriver dynamically?
608 AC_ARG_ENABLE(llvmc-dynamic,AS_HELP_STRING(
609 --enable-llvmc-dynamic,
610 [Link LLVMC dynamically (default is NO, unless on Win32)]),,
611 enableval=$llvmc_dynamic)
612 if test ${enableval} = "yes" && test "$ENABLE_PIC" -eq 1 ; then
613 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[ENABLE_LLVMC_DYNAMIC=1]])
615 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[]])
618 dnl --enable-llvmc-dynamic-plugins : should LLVMC support dynamic plugins?
619 AC_ARG_ENABLE(llvmc-dynamic-plugins,AS_HELP_STRING(
620 --enable-llvmc-dynamic-plugins,
621 [Enable dynamic LLVMC plugins (default is YES)]),,
623 if test ${enableval} = "yes" ; then
624 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[ENABLE_LLVMC_DYNAMIC_PLUGINS=1]])
626 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[]])
629 dnl===-----------------------------------------------------------------------===
631 dnl=== SECTION 4: Check for programs we need and that they are the right version
633 dnl===-----------------------------------------------------------------------===
635 dnl Check for compilation tools
643 dnl Check for the tools that the makefiles require
646 AC_PATH_PROG(CMP, [cmp], [cmp])
647 AC_PATH_PROG(CP, [cp], [cp])
648 AC_PATH_PROG(DATE, [date], [date])
649 AC_PATH_PROG(FIND, [find], [find])
650 AC_PATH_PROG(GREP, [grep], [grep])
651 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
652 AC_PATH_PROG(MV, [mv], [mv])
654 AC_PATH_PROG(RM, [rm], [rm])
655 AC_PATH_PROG(SED, [sed], [sed])
656 AC_PATH_PROG(TAR, [tar], [gtar])
657 AC_PATH_PROG(BINPWD,[pwd], [pwd])
659 dnl Looking for misc. graph plotting software
660 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
661 if test "$GRAPHVIZ" != "echo Graphviz" ; then
662 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
663 dnl If we're targeting for mingw we should emit windows paths, not msys
664 if test "$llvm_cv_os_type" = "MingW" ; then
665 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
667 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
668 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
670 AC_PATH_PROG(DOT, [dot], [echo dot])
671 if test "$DOT" != "echo dot" ; then
672 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
673 dnl If we're targeting for mingw we should emit windows paths, not msys
674 if test "$llvm_cv_os_type" = "MingW" ; then
675 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
677 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
678 [Define to path to dot program if found or 'echo dot' otherwise])
680 AC_PATH_PROG(FDP, [fdp], [echo fdp])
681 if test "$FDP" != "echo fdp" ; then
682 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
683 dnl If we're targeting for mingw we should emit windows paths, not msys
684 if test "$llvm_cv_os_type" = "MingW" ; then
685 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
687 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
688 [Define to path to fdp program if found or 'echo fdp' otherwise])
690 AC_PATH_PROG(NEATO, [neato], [echo neato])
691 if test "$NEATO" != "echo neato" ; then
692 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
693 dnl If we're targeting for mingw we should emit windows paths, not msys
694 if test "$llvm_cv_os_type" = "MingW" ; then
695 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
697 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
698 [Define to path to neato program if found or 'echo neato' otherwise])
700 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
701 if test "$TWOPI" != "echo twopi" ; then
702 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
703 dnl If we're targeting for mingw we should emit windows paths, not msys
704 if test "$llvm_cv_os_type" = "MingW" ; then
705 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
707 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
708 [Define to path to twopi program if found or 'echo twopi' otherwise])
710 AC_PATH_PROG(CIRCO, [circo], [echo circo])
711 if test "$CIRCO" != "echo circo" ; then
712 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
713 dnl If we're targeting for mingw we should emit windows paths, not msys
714 if test "$llvm_cv_os_type" = "MingW" ; then
715 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
717 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
718 [Define to path to circo program if found or 'echo circo' otherwise])
720 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
721 if test "$GV" != "echo gv" ; then
722 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
723 dnl If we're targeting for mingw we should emit windows paths, not msys
724 if test "$llvm_cv_os_type" = "MingW" ; then
725 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
727 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
728 [Define to path to gv program if found or 'echo gv' otherwise])
730 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
731 if test "$DOTTY" != "echo dotty" ; then
732 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
733 dnl If we're targeting for mingw we should emit windows paths, not msys
734 if test "$llvm_cv_os_type" = "MingW" ; then
735 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
737 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
738 [Define to path to dotty program if found or 'echo dotty' otherwise])
741 dnl Look for a sufficiently recent version of Perl.
742 LLVM_PROG_PERL([5.006])
744 if test x"$PERL" = xnone; then
745 AC_SUBST(HAVE_PERL,0)
746 AC_MSG_ERROR([perl is required but was not found, please install it])
748 AC_SUBST(HAVE_PERL,1)
751 dnl Find the install program
754 dnl Checks for documentation and testing tools that we can do without. If these
755 dnl are not found then they are set to "true" which always succeeds but does
756 dnl nothing. This just lets the build output show that we could have done
757 dnl something if the tool was available.
758 AC_PATH_PROG(BZIP2, [bzip2])
759 AC_PATH_PROG(DOXYGEN, [doxygen])
760 AC_PATH_PROG(GROFF, [groff])
761 AC_PATH_PROG(GZIP, [gzip])
762 AC_PATH_PROG(POD2HTML, [pod2html])
763 AC_PATH_PROG(POD2MAN, [pod2man])
764 AC_PATH_PROG(RUNTEST, [runtest])
766 AC_PATH_PROG(ZIP, [zip])
767 AC_PATH_PROGS(OCAMLC, [ocamlc])
768 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
769 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
770 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
771 AC_PATH_PROGS(GAS, [gas as])
773 dnl Determine whether the linker supports the -R option.
776 dnl Determine whether the linker supports the -export-dynamic option.
777 AC_LINK_EXPORT_DYNAMIC
779 dnl Check for libtool and the library that has dlopen function (which must come
780 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
786 if test "$lt_cv_dlopen_self" = "yes" ; then
787 AC_DEFINE([CAN_DLOPEN_SELF],[1],
788 [Define if dlopen(0) will open the symbols of the program])
792 if test "$WITH_LLVMGCCDIR" = "default" ; then
793 LLVMGCC="llvm-gcc${EXEEXT}"
794 LLVMGXX="llvm-g++${EXEEXT}"
795 LLVMGCCCOMMAND="$LLVMGCC"
796 LLVMGXXCOMMAND="$LLVMGXX"
797 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
798 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
799 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
800 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
802 if test -z "$LLVMGCC"; then
803 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
804 LLVMGCCCOMMAND="$LLVMGCC"
806 if test -z "$LLVMGXX"; then
807 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
808 LLVMGXXCOMMAND="$LLVMGXX"
811 AC_SUBST(LLVMGCC,$LLVMGCC)
812 AC_SUBST(LLVMGXX,$LLVMGXX)
813 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
814 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
818 AC_MSG_CHECKING([tool compatibility])
820 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
821 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
822 dnl to support those options.
823 dnl "icc" emits gcc signatures
824 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
836 if test "$GCC" != "yes" && test "$ICC" != "yes"
838 AC_MSG_ERROR([gcc|icc required but not found])
841 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
842 if test "$GXX" != "yes" && test "$IXX" != "yes"
844 AC_MSG_ERROR([g++|icc required but not found])
847 dnl Verify that GCC is version 3.0 or higher
848 if test "$GCC" = "yes"
850 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
851 #error Unsupported GCC version
853 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
856 dnl Check for GNU Make. We use its extensions, so don't build without it
857 if test -z "$llvm_cv_gnu_make_command"
859 AC_MSG_ERROR([GNU Make required but not found])
862 dnl Tool compatibility is okay if we make it here.
865 dnl===-----------------------------------------------------------------------===
867 dnl=== SECTION 5: Check for libraries
869 dnl===-----------------------------------------------------------------------===
872 if test "$llvm_cv_os_type" = "MingW" ; then
873 AC_CHECK_LIB(imagehlp, main)
874 AC_CHECK_LIB(psapi, main)
877 dnl dlopen() is required for plugin support.
878 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
879 [Define if dlopen() is available on this platform.]),
880 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
882 dnl libffi is optional; used to call external functions from the interpreter
883 if test "$llvm_cv_enable_libffi" = "yes" ; then
884 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
885 [Define if libffi is available on this platform.]),
886 AC_MSG_WARN([libffi not found - disabling external calls from interpreter]))
889 dnl mallinfo is optional; the code can compile (minus features) without it
890 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
891 [Define if mallinfo() is available on this platform.]))
893 dnl pthread locking functions are optional - but llvm will not be thread-safe
895 if test "$ENABLE_THREADS" -eq 1 ; then
896 AC_CHECK_LIB(pthread,pthread_mutex_init)
897 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
898 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
899 [Have pthread_mutex_lock]))
900 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
901 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
902 [Have pthread_rwlock_init]))
903 AC_SEARCH_LIBS(pthread_getspecific,pthread,
904 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
905 [Have pthread_getspecific]))
908 dnl Allow extra x86-disassembler library
910 AS_HELP_STRING([--with-udis86=<path>],
911 [Use udis86 external x86 disassembler library]),
913 AC_SUBST(USE_UDIS86, [1])
916 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
918 AC_CHECK_LIB(udis86, ud_init, [], [
919 echo "Error! You need to have libudis86 around."
923 AC_SUBST(USE_UDIS86, [0]))
924 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
925 [Define if use udis86 library])
927 dnl Allow OProfile support for JIT output.
928 AC_ARG_WITH(oprofile,
929 AS_HELP_STRING([--with-oprofile=<prefix>],
930 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
932 AC_SUBST(USE_OPROFILE, [1])
934 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
935 *) llvm_cv_oppath="${withval}/lib/oprofile"
936 CPPFLAGS="-I${withval}/include";;
938 LIBS="$LIBS -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
939 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
940 echo "Error! You need to have libopagent around."
943 AC_CHECK_HEADER([opagent.h], [], [
944 echo "Error! You need to have opagent.h around."
949 llvm_cv_old_LIBS="$LIBS"
950 LIBS="$LIBS -L/usr/lib/oprofile -Wl,-rpath,/usr/lib/oprofile"
951 dnl If either the library or header aren't present, omit oprofile support.
952 AC_SEARCH_LIBS(op_open_agent, opagent,
953 [AC_SUBST(USE_OPROFILE, [1])],
954 [LIBS="$llvm_cv_old_LIBS"
955 AC_SUBST(USE_OPROFILE, [0])])
956 AC_CHECK_HEADER([opagent.h], [], [
957 LIBS="$llvm_cv_old_LIBS"
958 AC_SUBST(USE_OPROFILE, [0])
961 AC_DEFINE_UNQUOTED([USE_OPROFILE],$USE_OPROFILE,
962 [Define if we have the oprofile JIT-support library])
964 dnl===-----------------------------------------------------------------------===
966 dnl=== SECTION 6: Check for header files
968 dnl===-----------------------------------------------------------------------===
970 dnl First, use autoconf provided macros for specific headers that we need
971 dnl We don't check for ancient stuff or things that are guaranteed to be there
972 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
973 dnl Generally we're looking for POSIX headers.
975 AC_HEADER_MMAP_ANONYMOUS
981 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
982 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
983 AC_CHECK_HEADERS([utime.h windows.h])
984 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
985 AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
986 if test "$ENABLE_THREADS" -eq 1 ; then
987 AC_CHECK_HEADERS(pthread.h,
988 AC_SUBST(HAVE_PTHREAD, 1),
989 AC_SUBST(HAVE_PTHREAD, 0))
991 AC_SUBST(HAVE_PTHREAD, 0)
994 dnl Try to find ffi.h.
995 if test "$llvm_cv_enable_libffi" = "yes" ; then
996 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
999 dnl===-----------------------------------------------------------------------===
1001 dnl=== SECTION 7: Check for types and structures
1003 dnl===-----------------------------------------------------------------------===
1010 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1011 AC_CHECK_TYPES([uint64_t],,
1012 AC_CHECK_TYPES([u_int64_t],,
1013 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1015 dnl===-----------------------------------------------------------------------===
1017 dnl=== SECTION 8: Check for specific functions needed
1019 dnl===-----------------------------------------------------------------------===
1021 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1022 AC_CHECK_FUNCS([powf fmodf strtof round ])
1023 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1024 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1025 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup ])
1026 AC_CHECK_FUNCS([strerror strerror_r strerror_s ])
1027 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1028 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
1033 dnl Check for variations in the Standard C++ library and STL. These macros are
1034 dnl provided by LLVM in the autoconf/m4 directory.
1035 AC_CXX_HAVE_STD_ITERATOR
1036 AC_CXX_HAVE_BI_ITERATOR
1037 AC_CXX_HAVE_FWD_ITERATOR
1041 dnl Check for mmap support.We also need to know if /dev/zero is required to
1042 dnl be opened for allocating RWX memory.
1043 dnl Make sure we aren't attempting to configure for an unknown system
1044 if test "$llvm_cv_platform_type" = "Unix" ; then
1047 AC_NEED_DEV_ZERO_FOR_MMAP
1049 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1051 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1053 if test "$ac_cv_func_mmap_file" = "no"
1055 AC_MSG_WARN([mmap() of files required but not found])
1059 dnl atomic builtins are required for threading support.
1060 AC_MSG_CHECKING(for GCC atomic builtins)
1064 volatile unsigned long val = 1;
1065 __sync_synchronize();
1066 __sync_val_compare_and_swap(&val, 1, 0);
1067 __sync_add_and_fetch(&val, 1);
1068 __sync_sub_and_fetch(&val, 1);
1073 AC_DEFINE(LLVM_MULTITHREADED, 1, Build multithreading support into LLVM),
1075 AC_DEFINE(LLVM_MULTITHREADED, 0, Build multithreading support into LLVM)
1076 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]))
1079 dnl===-----------------------------------------------------------------------===
1081 dnl=== SECTION 9: Additional checks, variables, etc.
1083 dnl===-----------------------------------------------------------------------===
1085 dnl Check, whether __dso_handle is present
1086 AC_CHECK_FUNCS([__dso_handle])
1088 dnl See if the llvm-gcc executable can compile to LLVM assembly
1089 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
1090 [llvm_cv_llvmgcc_sanity="no"
1091 if test -x "$LLVMGCC" ; then
1092 cp /dev/null conftest.c
1093 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
1094 grep 'target datalayout =' > /dev/null 2>&1
1095 if test $? -eq 0 ; then
1096 llvm_cv_llvmgcc_sanity="yes"
1101 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
1102 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
1103 AC_MSG_CHECKING([llvm-gcc component support])
1104 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
1105 AC_SUBST(LLVMCC1,$llvmcc1path)
1106 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
1107 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
1108 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
1109 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
1110 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
1111 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
1112 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
1113 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
1114 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
1115 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
1116 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ ]*\).*/\1/'`]
1117 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
1121 dnl Propagate the shared library extension that the libltdl checks did to
1122 dnl the Makefiles so we can use it there too
1123 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1125 # Translate the various configuration directories and other basic
1126 # information into substitutions that will end up in Makefile.config.in
1127 # that these configured values can be used by the makefiles
1128 if test "${prefix}" = "NONE" ; then
1131 eval LLVM_PREFIX="${prefix}";
1132 eval LLVM_BINDIR="${prefix}/bin";
1133 eval LLVM_LIBDIR="${prefix}/lib";
1134 eval LLVM_DATADIR="${prefix}/share/llvm";
1135 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
1136 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1137 eval LLVM_INCLUDEDIR="${prefix}/include";
1138 eval LLVM_INFODIR="${prefix}/info";
1139 eval LLVM_MANDIR="${prefix}/man";
1140 LLVM_CONFIGTIME=`date`
1141 AC_SUBST(LLVM_PREFIX)
1142 AC_SUBST(LLVM_BINDIR)
1143 AC_SUBST(LLVM_LIBDIR)
1144 AC_SUBST(LLVM_DATADIR)
1145 AC_SUBST(LLVM_DOCSDIR)
1146 AC_SUBST(LLVM_ETCDIR)
1147 AC_SUBST(LLVM_INCLUDEDIR)
1148 AC_SUBST(LLVM_INFODIR)
1149 AC_SUBST(LLVM_MANDIR)
1150 AC_SUBST(LLVM_CONFIGTIME)
1152 # Place the various directores into the config.h file as #defines so that we
1153 # can know about the installation paths within LLVM.
1154 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1155 [Installation prefix directory])
1156 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1157 [Installation directory for binary executables])
1158 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
1159 [Installation directory for libraries])
1160 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1161 [Installation directory for data files])
1162 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1163 [Installation directory for documentation])
1164 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1165 [Installation directory for config files])
1166 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1167 [Installation directory for include files])
1168 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1169 [Installation directory for .info files])
1170 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1171 [Installation directory for man pages])
1172 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1173 [Time at which LLVM was configured])
1174 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
1175 [Host triple we were built on])
1177 # Determine which bindings to build.
1178 if test "$BINDINGS_TO_BUILD" = auto ; then
1179 BINDINGS_TO_BUILD=""
1180 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1181 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1184 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1186 # This isn't really configurey, but it avoids having to repeat the list in
1188 AC_SUBST(ALL_BINDINGS,ocaml)
1190 # Do any work necessary to ensure that bindings have what they need.
1191 binding_prereqs_failed=0
1192 for a_binding in $BINDINGS_TO_BUILD ; do
1193 case "$a_binding" in
1195 if test "x$OCAMLC" = x ; then
1196 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1197 binding_prereqs_failed=1
1199 if test "x$OCAMLDEP" = x ; then
1200 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1201 binding_prereqs_failed=1
1203 if test "x$OCAMLOPT" = x ; then
1204 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1205 dnl ocamlopt is optional!
1207 if test "x$with_ocaml_libdir" != xauto ; then
1208 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1210 ocaml_stdlib="`"$OCAMLC" -where`"
1211 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1213 # ocaml stdlib is beneath our prefix; use stdlib
1214 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1216 # ocaml stdlib is outside our prefix; use libdir/ocaml
1217 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
1223 if test "$binding_prereqs_failed" = 1 ; then
1224 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1227 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1228 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1230 dnl Determine linker rpath flag
1231 if test "$llvm_cv_link_use_r" = "yes" ; then
1238 dnl Determine linker rdynamic flag
1239 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1240 RDYNAMIC="-Wl,-export-dynamic"
1246 dnl===-----------------------------------------------------------------------===
1248 dnl=== SECTION 10: Specify the output files and generate it
1250 dnl===-----------------------------------------------------------------------===
1252 dnl Configure header files
1253 dnl WARNING: dnl If you add or remove any of the following config headers, then
1254 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
1255 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1256 dnl files can be updated automatically when their *.in sources change.
1257 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
1258 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1259 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1260 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1261 AC_CONFIG_HEADERS([include/llvm/ADT/iterator.h])
1263 dnl Configure the makefile's configuration data
1264 AC_CONFIG_FILES([Makefile.config])
1266 dnl Configure the RPM spec file for LLVM
1267 AC_CONFIG_FILES([llvm.spec])
1269 dnl Configure doxygen's configuration file
1270 AC_CONFIG_FILES([docs/doxygen.cfg])
1272 dnl Configure llvmc's Base plugin
1273 AC_CONFIG_FILES([tools/llvmc/plugins/Base/Base.td])
1275 dnl Do the first stage of configuration for llvm-config.in.
1276 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1278 dnl Do special configuration of Makefiles
1279 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1280 AC_CONFIG_MAKEFILE(Makefile)
1281 AC_CONFIG_MAKEFILE(Makefile.common)
1282 AC_CONFIG_MAKEFILE(examples/Makefile)
1283 AC_CONFIG_MAKEFILE(lib/Makefile)
1284 AC_CONFIG_MAKEFILE(runtime/Makefile)
1285 AC_CONFIG_MAKEFILE(test/Makefile)
1286 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1287 AC_CONFIG_MAKEFILE(unittests/Makefile)
1288 AC_CONFIG_MAKEFILE(tools/Makefile)
1289 AC_CONFIG_MAKEFILE(utils/Makefile)
1290 AC_CONFIG_MAKEFILE(projects/Makefile)
1291 AC_CONFIG_MAKEFILE(bindings/Makefile)
1292 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1294 dnl Finally, crank out the output