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source: kBuild/trunk/src/kmk/configure.in@ 2125

Last change on this file since 2125 was 1993, checked in by bird, 16 years ago

Merged in current GNU Make code (CVS from 2008-10-28). Ref #55.

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File size: 14.6 KB
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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, 2007 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
8# the terms of the GNU General Public License as published by the Free Software
9# Foundation; either version 3 of the License, or (at your option) any later
10# version.
11#
12# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
13# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
15# details.
16#
17# You should have received a copy of the GNU General Public License along with
18# this program. If not, see <http://www.gnu.org/licenses/>.
19
20AC_INIT([GNU make],[3.81.90],[[email protected]])
21
22AC_PREREQ(2.59)
23AC_REVISION([[$Id: configure.in,v 1.148 2007/07/04 19:35:17 psmith Exp $]])
24
25# Autoconf setup
26AC_CONFIG_AUX_DIR(config)
27AC_CONFIG_SRCDIR(vpath.c)
28AC_CONFIG_HEADERS(config.h)
29
30# Automake setup
31AM_INIT_AUTOMAKE([1.9])
32
33# Checks for programs.
34AC_PROG_CC
35AC_PROG_INSTALL
36AC_PROG_RANLIB
37AC_PROG_CPP
38AC_CHECK_PROG(AR, ar, ar, ar)
39# Perl is needed for the test suite (only)
40AC_CHECK_PROG(PERL, perl, perl, perl)
41
42# Specialized system macros
43AC_CANONICAL_HOST
44AC_AIX
45AC_ISC_POSIX
46AC_MINIX
47
48# kmk does not need gettext (yet)
49## Enable gettext, in "external" mode.
50#
51#AM_GNU_GETTEXT_VERSION(0.14.1)
52#AM_GNU_GETTEXT([external])
53
54# This test must come as early as possible after the compiler configuration
55# tests, because the choice of the file model can (in principle) affect
56# whether functions and headers are available, whether they work, etc.
57AC_SYS_LARGEFILE
58
59# Checks for libraries.
60AC_SEARCH_LIBS(getpwnam, [sun])
61
62# Checks for header files.
63AC_HEADER_STDC
64AC_HEADER_DIRENT
65AC_HEADER_STAT
66AC_HEADER_TIME
67AC_CHECK_HEADERS(stdlib.h locale.h unistd.h limits.h fcntl.h string.h \
68 memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h)
69
70# Set a flag if we have an ANSI C compiler
71if test "$ac_cv_prog_cc_stdc" != no; then
72 AC_DEFINE(HAVE_ANSI_COMPILER, 1,
73 [Define to 1 if your compiler conforms to the ANSI C standard.])
74fi
75
76
77# Determine what kind of variadic function calls we support
78AC_CHECK_HEADERS(stdarg.h varargs.h, break)
79
80AM_PROG_CC_C_O
81AC_C_CONST
82AC_TYPE_SIGNAL
83AC_TYPE_UID_T
84AC_TYPE_PID_T
85
86# Find some definition for uintmax_t
87
88AC_CHECK_TYPE(uintmax_t,,[
89 uintmax_t="unsigned long"
90 AC_CHECK_TYPE(unsigned long long,[uintmax_t="unsigned long long"])
91 AC_DEFINE_UNQUOTED(uintmax_t,$uintmax_t,
92 [Define uintmax_t if not defined in <stdint.h> or <inttypes.h>.])])
93
94# Find out whether our struct stat returns nanosecond resolution timestamps.
95
96AC_STRUCT_ST_MTIM_NSEC
97AC_MSG_CHECKING([whether to use high resolution file timestamps])
98AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [
99 make_cv_file_timestamp_hi_res=no
100 if test "$ac_cv_struct_st_mtim_nsec" != no; then
101 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
102# if HAVE_INTTYPES_H
103# include <inttypes.h>
104# endif]],
105 [[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])],
106 [make_cv_file_timestamp_hi_res=yes],
107 [])
108 fi])
109AC_MSG_RESULT($make_cv_file_timestamp_hi_res)
110if test "$make_cv_file_timestamp_hi_res" = yes; then
111 val=1
112else
113 val=0
114fi
115AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val,
116 [Use high resolution file timestamps if nonzero.])
117
118if test "$make_cv_file_timestamp_hi_res" = yes; then
119 # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
120 # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
121 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
122 if test "$ac_cv_search_clock_gettime" != no; then
123 AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
124 [Define to 1 if you have the clock_gettime function.])
125 fi
126fi
127
128# Check for DOS-style pathnames.
129pds_AC_DOS_PATHS
130
131# See if we have a standard version of gettimeofday(). Since actual
132# implementations can differ, just make sure we have the most common
133# one.
134AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday,
135 [ac_cv_func_gettimeofday=no
136 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
137 int main ()
138 {
139 struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
140 exit (gettimeofday (&t, 0) != 0
141 || t.tv_sec < 0 || t.tv_usec < 0);
142 }]])],
143 [ac_cv_func_gettimeofday=yes],
144 [ac_cv_func_gettimeofday=no],
145 [ac_cv_func_gettimeofday="no (cross-compiling)"])])
146if test "$ac_cv_func_gettimeofday" = yes; then
147 AC_DEFINE(HAVE_GETTIMEOFDAY, 1,
148 [Define to 1 if you have a standard gettimeofday function])
149fi
150
151AC_CHECK_FUNCS( strdup mkstemp mktemp fdopen \
152 bsd_signal dup2 getcwd realpath sigsetmask sigaction \
153 getgroups seteuid setegid setlinebuf setreuid setregid \
154 getrlimit setrlimit setvbuf pipe strerror strsignal \
155 lstat readlink atexit)
156
157AC_FUNC_SETVBUF_REVERSED
158
159# Rumor has it that strcasecmp lives in -lresolv on some odd systems.
160# It doesn't hurt much to use our own if we can't find it so I don't
161# make the effort here.
162AC_CHECK_FUNCS(strcasecmp strcmpi stricmp)
163
164# strcoll() is used by the GNU glob library
165AC_FUNC_STRCOLL
166
167AC_FUNC_ALLOCA
168AC_FUNC_FORK([])
169AC_FUNC_VPRINTF
170AC_FUNC_CLOSEDIR_VOID
171
172AC_FUNC_GETLOADAVG
173
174# AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
175# doesn't. So, we will.
176
177if test "$ac_cv_header_nlist_h" = yes; then
178 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
179 [[struct nlist nl;
180 nl.n_name = "string";
181 return 0;]])],
182 [make_cv_nlist_struct=yes],
183 [make_cv_nlist_struct=no])
184 if test "$make_cv_nlist_struct" = yes; then
185 AC_DEFINE(NLIST_STRUCT, 1,
186 [Define to 1 if struct nlist.n_name is a pointer rather than an array.])
187 fi
188fi
189
190AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
191 [AC_INCLUDES_DEFAULT
192#include <signal.h>
193/* NetBSD declares sys_siglist in unistd.h. */
194#if HAVE_UNISTD_H
195# include <unistd.h>
196#endif
197])
198
199
200# Check out the wait reality.
201AC_CHECK_HEADERS(sys/wait.h,,,[[#include <sys/types.h>]])
202AC_CHECK_FUNCS(waitpid wait3)
203AC_MSG_CHECKING(for union wait)
204AC_CACHE_VAL(make_cv_union_wait, [dnl
205 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
206#include <sys/wait.h>]],
207 [[union wait status; int pid; pid = wait (&status);
208#ifdef WEXITSTATUS
209/* Some POSIXoid systems have both the new-style macros and the old
210 union wait type, and they do not work together. If union wait
211 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
212 if (WEXITSTATUS (status) != 0) pid = -1;
213#ifdef WTERMSIG
214 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
215 -- blow chunks here --
216#endif
217#endif
218#ifdef HAVE_WAITPID
219 /* Make sure union wait works with waitpid. */
220 pid = waitpid (-1, &status, 0);
221#endif
222 ]])],
223 [make_cv_union_wait=yes],
224 [make_cv_union_wait=no])])
225if test "$make_cv_union_wait" = yes; then
226 AC_DEFINE(HAVE_UNION_WAIT, 1,
227 [Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
228fi
229AC_MSG_RESULT($make_cv_union_wait)
230
231
232# If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
233if test "$PATH_SEPARATOR" = ';'; then
234 AC_DEFINE(HAVE_DOS_PATHS, 1,
235 [Define to 1 if your system requires backslashes or drive specs in pathnames.])
236fi
237
238
239# See if the user wants to use pmake's "customs" distributed build capability
240
241AC_SUBST(REMOTE) REMOTE=stub
242use_customs=false
243AC_ARG_WITH(customs,
244 AC_HELP_STRING([--with-customs=DIR],
245 [enable remote jobs via Customs--see README.customs]),
246 [case $withval in
247 n|no) : ;;
248 *) make_cppflags="$CPPFLAGS"
249 case $withval in
250 y|ye|yes) : ;;
251 *) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
252 make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
253 esac
254 CF_NETLIBS
255 AC_CHECK_HEADER(customs.h,
256 [use_customs=true
257 REMOTE=cstms
258 LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
259 [with_customs=no
260 CPPFLAGS="$make_cppflags" make_badcust=yes])
261 ;;
262 esac])
263# Tell automake about this, so it can include the right .c files.
264AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true)
265
266# See if the user asked to handle case insensitive file systems.
267
268AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names])
269AC_ARG_ENABLE(case-insensitive-file-system,
270 AC_HELP_STRING([--enable-case-insensitive-file-system],
271 [assume file systems are case insensitive]),
272 [case $enableval in
273 yes) AC_DEFINE(HAVE_CASE_INSENSITIVE_FS) ;;
274 esac])
275
276# See if we can handle the job server feature, and if the user wants it.
277
278AC_ARG_ENABLE(job-server,
279 AC_HELP_STRING([--disable-job-server],
280 [disallow recursive make communication during -jN]),
281 [make_cv_job_server="$enableval" user_job_server="$enableval"],
282 [make_cv_job_server="yes"])
283
284has_wait_nohang=yes
285case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
286 no/no) has_wait_nohang=no ;;
287esac
288
289AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
290 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
291 [[return SA_RESTART;]])],
292 [make_cv_sa_restart=yes],
293 [make_cv_sa_restart=no])])
294
295if test "$make_cv_sa_restart" != no; then
296 AC_DEFINE(HAVE_SA_RESTART, 1,
297 [Define to 1 if <signal.h> defines the SA_RESTART constant.])
298fi
299
300# enable make_cv_sa_restart for OS/2 so that the jobserver will be enabled,
301# but do it after HAVE_SA_RESTART has been defined.
302case "$host_os" in
303 os2*) make_cv_sa_restart=yes ;;
304esac
305
306case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in
307 yes/yes/yes/yes/yes)
308 AC_DEFINE(MAKE_JOBSERVER, 1,
309 [Define to 1 to enable job server support in GNU make.]);;
310esac
311
312# if we have both lstat() and readlink() then we can support symlink
313# timechecks.
314case "$ac_cv_func_lstat/$ac_cv_func_readlink" in
315 yes/yes)
316 AC_DEFINE(MAKE_SYMLINKS, 1,
317 [Define to 1 to enable symbolic link timestamp checking.]);;
318esac
319
320# Find the SCCS commands, so we can include them in our default rules.
321
322AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
323if test -f /usr/sccs/get; then
324 make_cv_path_sccs_get=/usr/sccs/get
325else
326 make_cv_path_sccs_get=get
327fi])
328AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"],
329 [Define to the name of the SCCS 'get' command.])
330
331ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
332if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
333 test -f s.conftest; then
334 # We successfully created an SCCS file.
335 AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
336 if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
337 test -f conftoast; then
338 make_cv_sys_get_minus_G=yes
339 else
340 make_cv_sys_get_minus_G=no
341 fi])
342 case "$make_cv_sys_get_minus_G" in
343 yes) AC_DEFINE(SCCS_GET_MINUS_G, 1,
344 [Define to 1 if the SCCS 'get' command understands the '-G<file>' option.]);;
345 esac
346fi
347rm -f s.conftest conftoast
348
349# Check the system to see if it provides GNU glob. If not, use our
350# local version.
351
352AC_MSG_CHECKING(if system libc has GNU glob)
353AC_CACHE_VAL(make_cv_sys_gnu_glob, [
354 AC_EGREP_CPP(gnu glob,[
355#include <features.h>
356#include <glob.h>
357#include <fnmatch.h>
358
359#define GLOB_INTERFACE_VERSION 1
360#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
361# include <gnu-versions.h>
362# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
363 gnu glob
364# endif
365#endif
366 ], [AC_MSG_RESULT(yes)
367make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy])
368AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob'
369AC_SUBST(GLOBLIB) GLOBLIB=glob/libglob.a
370make_cv_sys_gnu_glob=no])])
371# Tell automake about this, so it can build the right .c files.
372AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no)
373
374# Let the makefile know what our build host is
375
376AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.])
377MAKE_HOST="$host"
378AC_SUBST(MAKE_HOST)
379
380w32_target_env=no
381AM_CONDITIONAL([WINDOWSENV], false)
382
383case "$host" in
384 *-*-mingw32)
385 AM_CONDITIONAL(WINDOWSENV, true)
386 w32_target_env=yes
387 AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
388 AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
389 ;;
390esac
391
392AC_DEFINE_UNQUOTED(PATH_SEPARATOR_CHAR,'$PATH_SEPARATOR',[Define to the character that separates directories in PATH.])
393
394# Include the Maintainer's Makefile section, if it's here.
395
396MAINT_MAKEFILE=/dev/null
397if test -r "$srcdir/maintMakefile"; then
398 MAINT_MAKEFILE="$srcdir/maintMakefile"
399fi
400AC_SUBST_FILE(MAINT_MAKEFILE)
401
402# Allow building with dmalloc
403AM_WITH_DMALLOC
404
405# Forcibly disable SET_MAKE. If it's set it breaks things like the test
406# scripts, etc.
407SET_MAKE=
408
409# Sanity check and inform the user of what we found
410
411case "$make_badcust" in
412 yes) echo
413 echo "WARNING: --with-customs specified but no customs.h could be found;"
414 echo " disabling Customs support."
415 echo ;;
416esac
417
418case "$with_customs" in
419 ""|n|no|y|ye|yes) ;;
420 *) if test -f "$with_customs/lib/libcustoms.a"; then
421 :
422 else
423 echo
424 echo "WARNING: '$with_customs/lib' does not appear to contain the"
425 echo " Customs library. You must build and install Customs"
426 echo " before compiling GNU make."
427 echo
428 fi ;;
429esac
430
431case "$has_wait_nohang" in
432 no) echo
433 echo "WARNING: Your system has neither waitpid() nor wait3()."
434 echo " Without one of these, signal handling is unreliable."
435 echo " You should be aware that running GNU make with -j"
436 echo " could result in erratic behavior."
437 echo ;;
438esac
439
440case "$make_cv_job_server/$user_job_server" in
441 no/yes) echo
442 echo "WARNING: Make job server requires a POSIX-ish system that"
443 echo " supports the pipe(), sigaction(), and either"
444 echo " waitpid() or wait3() functions. Your system doesn't"
445 echo " appear to provide one or more of those."
446 echo " Disabling job server support."
447 echo ;;
448esac
449
450
451# Specify what files are to be created.
452#we can safely drop doc and po when bootstrapping kmk.
453#AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile)
454AC_CONFIG_FILES(Makefile glob/Makefile config/Makefile w32/Makefile)
455
456# OK, do it!
457
458AC_OUTPUT
459
460# We only generate the build.sh if we have a build.sh.in; we won't have
461# one before we've created a distribution.
462if test -f "$srcdir/build.sh.in"; then
463 ./config.status --file build.sh
464 chmod +x build.sh
465fi
466
467dnl Local Variables:
468dnl comment-start: "dnl "
469dnl comment-end: ""
470dnl comment-start-skip: "\\bdnl\\b\\s *"
471dnl compile-command: "make configure config.h.in"
472dnl End:
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