1# Process this file with autoconf to produce a configure script. 2# 3# Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 4# 2003, 2004, 2005, 2006 Free Software Foundation, Inc. 5# This file is part of GNU Make. 6# 7# GNU Make is free software; you can redistribute it and/or modify it under the 8# terms of the GNU General Public License as published by the Free Software 9# Foundation; either version 2, or (at your option) any later version. 10# 11# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY 12# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 13# A PARTICULAR PURPOSE. See the GNU General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License along with 16# GNU Make; see the file COPYING. If not, write to the Free Software 17# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 19AC_INIT([GNU make],[3.81],[bug-make@gnu.org]) 20 21AC_PREREQ(2.59) 22AC_REVISION([[$Id: configure.in,v 1.142 2006/04/01 06:36:40 psmith Exp $]]) 23 24# Autoconf setup 25AC_CONFIG_AUX_DIR(config) 26AC_CONFIG_SRCDIR(vpath.c) 27AC_CONFIG_HEADERS(config.h) 28 29# Automake setup 30AM_INIT_AUTOMAKE([1.9]) 31 32# Checks for programs. 33AC_PROG_CC 34AC_PROG_INSTALL 35AC_PROG_RANLIB 36AC_PROG_CPP 37AC_CHECK_PROG(AR, ar, ar, ar) 38# Perl is needed for the test suite (only) 39AC_CHECK_PROG(PERL, perl, perl, perl) 40 41# Specialized system macros 42AC_CANONICAL_HOST 43AC_AIX 44AC_ISC_POSIX 45AC_MINIX 46 47# Needed for ansi2knr 48AM_C_PROTOTYPES 49 50# Enable gettext, in "external" mode. 51 52AM_GNU_GETTEXT_VERSION(0.14.1) 53AM_GNU_GETTEXT([external]) 54 55# This test must come as early as possible after the compiler configuration 56# tests, because the choice of the file model can (in principle) affect 57# whether functions and headers are available, whether they work, etc. 58AC_SYS_LARGEFILE 59 60# Checks for libraries. 61AC_SEARCH_LIBS(getpwnam, [sun]) 62 63# Checks for header files. 64AC_HEADER_STDC 65AC_HEADER_DIRENT 66AC_HEADER_STAT 67AC_HEADER_TIME 68AC_CHECK_HEADERS(stdlib.h locale.h unistd.h limits.h fcntl.h string.h \ 69 memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h) 70 71# Set a flag if we have an ANSI C compiler 72if test "$ac_cv_prog_cc_stdc" != no; then 73 AC_DEFINE(HAVE_ANSI_COMPILER, 1, 74 [Define if your compiler conforms to the ANSI C standard.]) 75fi 76 77 78# Determine what kind of variadic function calls we support 79AC_CHECK_HEADERS(stdarg.h varargs.h, break) 80 81AM_PROG_CC_C_O 82AC_C_CONST 83AC_TYPE_SIGNAL 84AC_TYPE_UID_T 85AC_TYPE_PID_T 86 87# Find some definition for uintmax_t 88 89AC_CHECK_TYPE(uintmax_t,,[ 90 uintmax_t="unsigned long" 91 AC_CHECK_TYPE(unsigned long long,[uintmax_t="unsigned long long"]) 92 AC_DEFINE_UNQUOTED(uintmax_t,$uintmax_t, 93 [Define uintmax_t if not defined in <stdint.h> or <inttypes.h>.])]) 94 95# Find out whether our struct stat returns nanosecond resolution timestamps. 96 97AC_STRUCT_ST_MTIM_NSEC 98AC_MSG_CHECKING([whether to use high resolution file timestamps]) 99AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [ 100 make_cv_file_timestamp_hi_res=no 101 if test "$ac_cv_struct_st_mtim_nsec" != no; then 102 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 103# if HAVE_INTTYPES_H 104# include <inttypes.h> 105# endif]], 106 [[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])], 107 [make_cv_file_timestamp_hi_res=yes], 108 []) 109 fi]) 110AC_MSG_RESULT($make_cv_file_timestamp_hi_res) 111if test "$make_cv_file_timestamp_hi_res" = yes; then 112 val=1 113else 114 val=0 115fi 116AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val, 117 [Use high resolution file timestamps if nonzero.]) 118 119if test "$make_cv_file_timestamp_hi_res" = yes; then 120 # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function. 121 # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4. 122 AC_SEARCH_LIBS(clock_gettime, [rt posix4]) 123 if test "$ac_cv_search_clock_gettime" != no; then 124 AC_DEFINE(HAVE_CLOCK_GETTIME, 1, 125 [Define if you have the clock_gettime function.]) 126 fi 127fi 128 129# Check for DOS-style pathnames. 130pds_AC_DOS_PATHS 131 132# See if we have a standard version of gettimeofday(). Since actual 133# implementations can differ, just make sure we have the most common 134# one. 135AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday, 136 [ac_cv_func_gettimeofday=no 137 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h> 138 int main () 139 { 140 struct timeval t; t.tv_sec = -1; t.tv_usec = -1; 141 exit (gettimeofday (&t, 0) != 0 142 || t.tv_sec < 0 || t.tv_usec < 0); 143 }]])], 144 [ac_cv_func_gettimeofday=yes], 145 [ac_cv_func_gettimeofday=no], 146 [ac_cv_func_gettimeofday="no (cross-compiling)"])]) 147if test "$ac_cv_func_gettimeofday" = yes; then 148 AC_DEFINE(HAVE_GETTIMEOFDAY, 1, 149 [Define if you have a standard gettimeofday function]) 150fi 151 152AC_CHECK_FUNCS( memcpy memmove strchr strdup mkstemp mktemp fdopen \ 153 bsd_signal dup2 getcwd realpath sigsetmask sigaction \ 154 getgroups seteuid setegid setlinebuf setreuid setregid \ 155 getrlimit setrlimit setvbuf pipe strerror strsignal \ 156 lstat readlink atexit) 157 158AC_FUNC_SETVBUF_REVERSED 159 160# strcoll() is used by the GNU glob library 161AC_FUNC_STRCOLL 162 163AC_FUNC_ALLOCA 164AC_FUNC_FORK([]) 165AC_FUNC_VPRINTF 166AC_FUNC_CLOSEDIR_VOID 167 168AC_FUNC_GETLOADAVG 169 170# AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it 171# doesn't. So, we will. 172 173if test "$ac_cv_header_nlist_h" = yes; then 174 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]], 175 [[struct nlist nl; 176 nl.n_name = "string"; 177 return 0;]])], 178 [make_cv_nlist_struct=yes], 179 [make_cv_nlist_struct=no]) 180 if test "$make_cv_nlist_struct" = yes; then 181 AC_DEFINE(NLIST_STRUCT, 1, 182 [Define if struct nlist.n_name is a pointer rather than an array.]) 183 fi 184fi 185 186AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , , 187 [AC_INCLUDES_DEFAULT 188#include <signal.h> 189/* NetBSD declares sys_siglist in unistd.h. */ 190#if HAVE_UNISTD_H 191# include <unistd.h> 192#endif 193]) 194 195 196# Check out the wait reality. 197AC_CHECK_HEADERS(sys/wait.h) 198AC_CHECK_FUNCS(waitpid wait3) 199AC_MSG_CHECKING(for union wait) 200AC_CACHE_VAL(make_cv_union_wait, [dnl 201 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> 202#include <sys/wait.h>]], 203 [[union wait status; int pid; pid = wait (&status); 204#ifdef WEXITSTATUS 205/* Some POSIXoid systems have both the new-style macros and the old 206 union wait type, and they do not work together. If union wait 207 conflicts with WEXITSTATUS et al, we don't want to use it at all. */ 208 if (WEXITSTATUS (status) != 0) pid = -1; 209#ifdef WTERMSIG 210 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */ 211 -- blow chunks here -- 212#endif 213#endif 214#ifdef HAVE_WAITPID 215 /* Make sure union wait works with waitpid. */ 216 pid = waitpid (-1, &status, 0); 217#endif 218 ]])], 219 [make_cv_union_wait=yes], 220 [make_cv_union_wait=no])]) 221if test "$make_cv_union_wait" = yes; then 222 AC_DEFINE(HAVE_UNION_WAIT, 1, 223 [Define this if you have the \`union wait' type in <sys/wait.h>.]) 224fi 225AC_MSG_RESULT($make_cv_union_wait) 226 227 228# If we're building on Windows/DOS/OS/2, add some support for DOS drive specs. 229if test "$PATH_SEPARATOR" = ';'; then 230 AC_DEFINE(HAVE_DOS_PATHS, 1, 231 [Define this if your system requires backslashes or drive specs in pathnames.]) 232fi 233 234 235# See if the user wants to use pmake's "customs" distributed build capability 236 237AC_SUBST(REMOTE) REMOTE=stub 238use_customs=false 239AC_ARG_WITH(customs, 240 AC_HELP_STRING([--with-customs=DIR], 241 [enable remote jobs via Customs--see README.customs]), 242 [case $withval in 243 n|no) : ;; 244 *) make_cppflags="$CPPFLAGS" 245 case $withval in 246 y|ye|yes) : ;; 247 *) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs" 248 make_ldflags="$LDFLAGS -L$with_customs/lib" ;; 249 esac 250 CF_NETLIBS 251 AC_CHECK_HEADER(customs.h, 252 [use_customs=true 253 REMOTE=cstms 254 LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"], 255 [with_customs=no 256 CPPFLAGS="$make_cppflags" make_badcust=yes]) 257 ;; 258 esac]) 259# Tell automake about this, so it can include the right .c files. 260AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true) 261 262# See if the user asked to handle case insensitive file systems. 263 264AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names]) 265AC_ARG_ENABLE(case-insensitive-file-system, 266 AC_HELP_STRING([--enable-case-insensitive-file-system], 267 [enable case insensitive file system support]), 268 case_insensitive_fs="yes" AC_DEFINE(HAVE_CASE_INSENSITIVE_FS), 269 case_insensitive_fs="no") 270 271# See if we can handle the job server feature, and if the user wants it. 272 273AC_ARG_ENABLE(job-server, 274 AC_HELP_STRING([--disable-job-server], 275 [disallow recursive make communication during -jN]), 276 [make_cv_job_server="$enableval" user_job_server="$enableval"], 277 [make_cv_job_server="yes"]) 278 279has_wait_nohang=yes 280case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in 281 no/no) has_wait_nohang=no ;; 282esac 283 284AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [ 285 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], 286 [[return SA_RESTART;]])], 287 [make_cv_sa_restart=yes], 288 [make_cv_sa_restart=no])]) 289 290if test "$make_cv_sa_restart" != no; then 291 AC_DEFINE(HAVE_SA_RESTART, 1, 292 [Define if <signal.h> defines the SA_RESTART constant.]) 293fi 294 295# enable make_cv_sa_restart for OS/2 so that the jobserver will be enabled, 296# but do it after HAVE_SA_RESTART has been defined. 297case "$host_os" in 298 os2*) make_cv_sa_restart=yes ;; 299esac 300 301case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in 302 yes/yes/yes/yes/yes) 303 AC_DEFINE(MAKE_JOBSERVER, 1, 304 [Define this to enable job server support in GNU make.]);; 305esac 306 307# if we have both lstat() and readlink() then we can support symlink 308# timechecks. 309case "$ac_cv_func_lstat/$ac_cv_func_readlink" in 310 yes/yes) 311 AC_DEFINE(MAKE_SYMLINKS, 1, 312 [Define this to enable symbolic link timestamp checking.]);; 313esac 314 315# Find the SCCS commands, so we can include them in our default rules. 316 317AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [ 318if test -f /usr/sccs/get; then 319 make_cv_path_sccs_get=/usr/sccs/get 320else 321 make_cv_path_sccs_get=get 322fi]) 323AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"], 324 [Define to the name of the SCCS 'get' command.]) 325 326ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later. 327if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 && 328 test -f s.conftest; then 329 # We successfully created an SCCS file. 330 AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [ 331 if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 && 332 test -f conftoast; then 333 make_cv_sys_get_minus_G=yes 334 else 335 make_cv_sys_get_minus_G=no 336 fi]) 337 case "$make_cv_sys_get_minus_G" in 338 yes) AC_DEFINE(SCCS_GET_MINUS_G, 1, 339 [Define this if the SCCS 'get' command understands the '-G<file>' option.]);; 340 esac 341fi 342rm -f s.conftest conftoast 343 344# Check the system to see if it provides GNU glob. If not, use our 345# local version. 346 347AC_MSG_CHECKING(if system libc has GNU glob) 348AC_CACHE_VAL(make_cv_sys_gnu_glob, [ 349 AC_EGREP_CPP(gnu glob,[ 350#include <features.h> 351#include <glob.h> 352#include <fnmatch.h> 353 354#define GLOB_INTERFACE_VERSION 1 355#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1 356# include <gnu-versions.h> 357# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION 358 gnu glob 359# endif 360#endif 361 ], [AC_MSG_RESULT(yes) 362make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy]) 363AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob' 364AC_SUBST(GLOBLIB) GLOBLIB=glob/libglob.a 365make_cv_sys_gnu_glob=no])]) 366# Tell automake about this, so it can build the right .c files. 367AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no) 368 369# Let the makefile know what our build host is 370 371AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.]) 372MAKE_HOST="$host" 373AC_SUBST(MAKE_HOST) 374 375w32_target_env=no 376AM_CONDITIONAL([WINDOWSENV], false) 377 378case "$host" in 379 *-*-mingw32) 380 AM_CONDITIONAL(WINDOWSENV, true) 381 w32_target_env=yes 382 AC_DEFINE([WINDOWS32], [1], [Use platform specific coding]) 383 AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding]) 384 ;; 385esac 386 387# Include the Maintainer's Makefile section, if it's here. 388 389MAINT_MAKEFILE=/dev/null 390if test -r "$srcdir/maintMakefile"; then 391 MAINT_MAKEFILE="$srcdir/maintMakefile" 392fi 393AC_SUBST_FILE(MAINT_MAKEFILE) 394 395# Allow building with dmalloc 396AM_WITH_DMALLOC 397 398# Forcibly disable SET_MAKE. If it's set it breaks things like the test 399# scripts, etc. 400SET_MAKE= 401 402# Sanity check and inform the user of what we found 403 404case "$make_badcust" in 405 yes) echo 406 echo "WARNING: --with-customs specified but no customs.h could be found;" 407 echo " disabling Customs support." 408 echo ;; 409esac 410 411case "$with_customs" in 412 ""|n|no|y|ye|yes) ;; 413 *) if test -f "$with_customs/lib/libcustoms.a"; then 414 : 415 else 416 echo 417 echo "WARNING: '$with_customs/lib' does not appear to contain the" 418 echo " Customs library. You must build and install Customs" 419 echo " before compiling GNU make." 420 echo 421 fi ;; 422esac 423 424case "$has_wait_nohang" in 425 no) echo 426 echo "WARNING: Your system has neither waitpid() nor wait3()." 427 echo " Without one of these, signal handling is unreliable." 428 echo " You should be aware that running GNU make with -j" 429 echo " could result in erratic behavior." 430 echo ;; 431esac 432 433case "$make_cv_job_server/$user_job_server" in 434 no/yes) echo 435 echo "WARNING: Make job server requires a POSIX-ish system that" 436 echo " supports the pipe(), sigaction(), and either" 437 echo " waitpid() or wait3() functions. Your system doesn't" 438 echo " appear to provide one or more of those." 439 echo " Disabling job server support." 440 echo ;; 441esac 442 443 444# Specify what files are to be created. 445AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile) 446 447# OK, do it! 448 449AC_OUTPUT 450 451# We only generate the build.sh if we have a build.sh.in; we won't have 452# one before we've created a distribution. 453if test -f "$srcdir/build.sh.in"; then 454 ./config.status --file build.sh 455 chmod +x build.sh 456fi 457 458dnl Local Variables: 459dnl comment-start: "dnl " 460dnl comment-end: "" 461dnl comment-start-skip: "\\bdnl\\b\\s *" 462dnl compile-command: "make configure config.h.in" 463dnl End: 464