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 19 AC_INIT([GNU make],[3.81],[bug-make (a] gnu.org]) 20 21 AC_PREREQ(2.59) 22 AC_REVISION([[$Id: configure.in,v 1.142 2006/04/01 06:36:40 psmith Exp $]]) 23 24 # Autoconf setup 25 AC_CONFIG_AUX_DIR(config) 26 AC_CONFIG_SRCDIR(vpath.c) 27 AC_CONFIG_HEADERS(config.h) 28 29 # Automake setup 30 AM_INIT_AUTOMAKE([1.9]) 31 32 # Checks for programs. 33 AC_PROG_CC 34 AC_PROG_INSTALL 35 AC_PROG_RANLIB 36 AC_PROG_CPP 37 AC_CHECK_PROG(AR, ar, ar, ar) 38 # Perl is needed for the test suite (only) 39 AC_CHECK_PROG(PERL, perl, perl, perl) 40 41 # Specialized system macros 42 AC_CANONICAL_HOST 43 AC_AIX 44 AC_ISC_POSIX 45 AC_MINIX 46 47 # Needed for ansi2knr 48 AM_C_PROTOTYPES 49 50 # Enable gettext, in "external" mode. 51 52 AM_GNU_GETTEXT_VERSION(0.14.1) 53 AM_GNU_GETTEXT([external]) 54 55 # This test must come as early as possible after the compiler configuration 56 # tests, because the choice of the file model can (in principle) affect 57 # whether functions and headers are available, whether they work, etc. 58 AC_SYS_LARGEFILE 59 60 # Checks for libraries. 61 AC_SEARCH_LIBS(getpwnam, [sun]) 62 63 # Checks for header files. 64 AC_HEADER_STDC 65 AC_HEADER_DIRENT 66 AC_HEADER_STAT 67 AC_HEADER_TIME 68 AC_CHECK_HEADERS(stdlib.h locale.h unistd.h limits.h fcntl.h string.h \ 69 memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h) 70 71 # Set a flag if we have an ANSI C compiler 72 if test "$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.]) 75 fi 76 77 78 # Determine what kind of variadic function calls we support 79 AC_CHECK_HEADERS(stdarg.h varargs.h, break) 80 81 AM_PROG_CC_C_O 82 AC_C_CONST 83 AC_TYPE_SIGNAL 84 AC_TYPE_UID_T 85 AC_TYPE_PID_T 86 87 # Find some definition for uintmax_t 88 89 AC_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,$uintmax_t, 93 [Define uintmax_t if not defined in <stdint.h> or <inttypes.h>.])]) 94 95 # Find out whether our struct stat returns nanosecond resolution timestamps. 96 97 AC_STRUCT_ST_MTIM_NSEC 98 AC_MSG_CHECKING([whether to use high resolution file timestamps]) 99 AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [ 100 make_cv_file_timestamp_hi_res=no 101 if test "$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]) 110 AC_MSG_RESULT($make_cv_file_timestamp_hi_res) 111 if test "$make_cv_file_timestamp_hi_res" = yes; then 112 val=1 113 else 114 val=0 115 fi 116 AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val, 117 [Use high resolution file timestamps if nonzero.]) 118 119 if test "$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 "$ac_cv_search_clock_gettime" != no; then 124 AC_DEFINE(HAVE_CLOCK_GETTIME, 1, 125 [Define if you have the clock_gettime function.]) 126 fi 127 fi 128 129 # Check for DOS-style pathnames. 130 pds_AC_DOS_PATHS 131 132 # See if we have a standard version of gettimeofday(). Since actual 133 # implementations can differ, just make sure we have the most common 134 # one. 135 AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday, 136 [ac_cv_func_gettimeofday=no 137 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h> 138 int main () 139 { 140 struct timeval t; t.tv_sec = -1; t.tv_usec = -1; 141 exit (gettimeofday (&t, 0) != 0 142 || t.tv_sec < 0 || t.tv_usec < 0); 143 }]])], 144 [ac_cv_func_gettimeofday=yes], 145 [ac_cv_func_gettimeofday=no], 146 [ac_cv_func_gettimeofday="no (cross-compiling)"])]) 147 if test "$ac_cv_func_gettimeofday" = yes; then 148 AC_DEFINE(HAVE_GETTIMEOFDAY, 1, 149 [Define if you have a standard gettimeofday function]) 150 fi 151 152 AC_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) 157 158 AC_FUNC_SETVBUF_REVERSED 159 160 # strcoll() is used by the GNU glob library 161 AC_FUNC_STRCOLL 162 163 AC_FUNC_ALLOCA 164 AC_FUNC_FORK([]) 165 AC_FUNC_VPRINTF 166 AC_FUNC_CLOSEDIR_VOID 167 168 AC_FUNC_GETLOADAVG 169 170 # AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it 171 # doesn't. So, we will. 172 173 if 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 184 fi 185 186 AC_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. 197 AC_CHECK_HEADERS(sys/wait.h) 198 AC_CHECK_FUNCS(waitpid wait3) 199 AC_MSG_CHECKING(for union wait) 200 AC_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])]) 221 if test "$make_cv_union_wait" = yes; then 222 AC_DEFINE(HAVE_UNION_WAIT, 1, 223 [Define this if you have the \`union wait' type in <sys/wait.h>.]) 224 fi 225 AC_MSG_RESULT($make_cv_union_wait) 226 227 228 # If we're building on Windows/DOS/OS/2, add some support for DOS drive specs. 229 if test "$PATH_SEPARATOR" = ';'; then 230 AC_DEFINE(HAVE_DOS_PATHS, 1, 231 [Define this if your system requires backslashes or drive specs in pathnames.]) 232 fi 233 234 235 # See if the user wants to use pmake's "customs" distributed build capability 236 237 AC_SUBST(REMOTE) REMOTE=stub 238 use_customs=false 239 AC_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. 260 AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true) 261 262 # See if the user asked to handle case insensitive file systems. 263 264 AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names]) 265 AC_ARG_ENABLE(case-insensitive-file-system, 266 AC_HELP_STRING([--enable-case-insensitive-file-system], 267 [enable case insensitive file system support]), 268 case_insensitive_fs="yes" AC_DEFINE(HAVE_CASE_INSENSITIVE_FS), 269 case_insensitive_fs="no") 270 271 # See if we can handle the job server feature, and if the user wants it. 272 273 AC_ARG_ENABLE(job-server, 274 AC_HELP_STRING([--disable-job-server], 275 [disallow recursive make communication during -jN]), 276 [make_cv_job_server="$enableval" user_job_server="$enableval"], 277 [make_cv_job_server="yes"]) 278 279 has_wait_nohang=yes 280 case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in 281 no/no) has_wait_nohang=no ;; 282 esac 283 284 AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [ 285 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], 286 [[return SA_RESTART;]])], 287 [make_cv_sa_restart=yes], 288 [make_cv_sa_restart=no])]) 289 290 if test "$make_cv_sa_restart" != no; then 291 AC_DEFINE(HAVE_SA_RESTART, 1, 292 [Define if <signal.h> defines the SA_RESTART constant.]) 293 fi 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. 297 case "$host_os" in 298 os2*) make_cv_sa_restart=yes ;; 299 esac 300 301 case "$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.]);; 305 esac 306 307 # if we have both lstat() and readlink() then we can support symlink 308 # timechecks. 309 case "$ac_cv_func_lstat/$ac_cv_func_readlink" in 310 yes/yes) 311 AC_DEFINE(MAKE_SYMLINKS, 1, 312 [Define this to enable symbolic link timestamp checking.]);; 313 esac 314 315 # Find the SCCS commands, so we can include them in our default rules. 316 317 AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [ 318 if test -f /usr/sccs/get; then 319 make_cv_path_sccs_get=/usr/sccs/get 320 else 321 make_cv_path_sccs_get=get 322 fi]) 323 AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"], 324 [Define to the name of the SCCS 'get' command.]) 325 326 ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later. 327 if ( /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 341 fi 342 rm -f s.conftest conftoast 343 344 # Check the system to see if it provides GNU glob. If not, use our 345 # local version. 346 347 AC_MSG_CHECKING(if system libc has GNU glob) 348 AC_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) 362 make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy]) 363 AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob' 364 AC_SUBST(GLOBLIB) GLOBLIB=glob/libglob.a 365 make_cv_sys_gnu_glob=no])]) 366 # Tell automake about this, so it can build the right .c files. 367 AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no) 368 369 # Let the makefile know what our build host is 370 371 AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.]) 372 MAKE_HOST="$host" 373 AC_SUBST(MAKE_HOST) 374 375 w32_target_env=no 376 AM_CONDITIONAL([WINDOWSENV], false) 377 378 case "$host" in 379 *-*-mingw32) 380 AM_CONDITIONAL(WINDOWSENV, true) 381 w32_target_env=yes 382 AC_DEFINE([WINDOWS32], [1], [Use platform specific coding]) 383 AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding]) 384 ;; 385 esac 386 387 # Include the Maintainer's Makefile section, if it's here. 388 389 MAINT_MAKEFILE=/dev/null 390 if test -r "$srcdir/maintMakefile"; then 391 MAINT_MAKEFILE="$srcdir/maintMakefile" 392 fi 393 AC_SUBST_FILE(MAINT_MAKEFILE) 394 395 # Allow building with dmalloc 396 AM_WITH_DMALLOC 397 398 # Forcibly disable SET_MAKE. If it's set it breaks things like the test 399 # scripts, etc. 400 SET_MAKE= 401 402 # Sanity check and inform the user of what we found 403 404 case "$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 ;; 409 esac 410 411 case "$with_customs" in 412 ""|n|no|y|ye|yes) ;; 413 *) if test -f "$with_customs/lib/libcustoms.a"; then 414 : 415 else 416 echo 417 echo "WARNING: '$with_customs/lib' does not appear to contain the" 418 echo " Customs library. You must build and install Customs" 419 echo " before compiling GNU make." 420 echo 421 fi ;; 422 esac 423 424 case "$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 ;; 431 esac 432 433 case "$make_cv_job_server/$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 ;; 441 esac 442 443 444 # Specify what files are to be created. 445 AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile) 446 447 # OK, do it! 448 449 AC_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. 453 if test -f "$srcdir/build.sh.in"; then 454 ./config.status --file build.sh 455 chmod +x build.sh 456 fi 457 458 dnl Local Variables: 459 dnl comment-start: "dnl " 460 dnl comment-end: "" 461 dnl comment-start-skip: "\\bdnl\\b\\s *" 462 dnl compile-command: "make configure config.h.in" 463 dnl End: 464
