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source: kBuild/trunk/src/kmk/configure.in@ 2657

Last change on this file since 2657 was 2591, checked in by bird, 13 years ago

kmk: Merged in changes from GNU make 3.82. Previous GNU make base version was gnumake-2008-10-28-CVS.

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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, 2008, 2009, 2010 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],[3.82],[[email protected]])
21
22AC_PREREQ(2.59)
23AC_REVISION([[$Id: configure.in,v 1.156 2010/07/28 05:39:50 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 strndup mkstemp mktemp fdopen fileno \
152 dup2 getcwd realpath sigsetmask sigaction \
153 getgroups seteuid setegid setlinebuf setreuid setregid \
154 getrlimit setrlimit setvbuf pipe strerror strsignal \
155 lstat readlink atexit)
156
157# We need to check declarations, not just existence, because on Tru64 this
158# function is not declared without special flags, which themselves cause
159# other problems. We'll just use our own.
160AC_CHECK_DECLS([bsd_signal], [], [], [[#include <signal.h>]])
161
162AC_FUNC_SETVBUF_REVERSED
163
164# Rumor has it that strcasecmp lives in -lresolv on some odd systems.
165# It doesn't hurt much to use our own if we can't find it so I don't
166# make the effort here.
167AC_CHECK_FUNCS(strcasecmp strncasecmp strcmpi strncmpi stricmp strnicmp)
168
169# strcoll() is used by the GNU glob library
170AC_FUNC_STRCOLL
171
172AC_FUNC_ALLOCA
173AC_FUNC_FORK([])
174AC_FUNC_VPRINTF
175AC_FUNC_CLOSEDIR_VOID
176
177AC_FUNC_GETLOADAVG
178
179# AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
180# doesn't. So, we will.
181
182if test "$ac_cv_header_nlist_h" = yes; then
183 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
184 [[struct nlist nl;
185 nl.n_name = "string";
186 return 0;]])],
187 [make_cv_nlist_struct=yes],
188 [make_cv_nlist_struct=no])
189 if test "$make_cv_nlist_struct" = yes; then
190 AC_DEFINE(NLIST_STRUCT, 1,
191 [Define to 1 if struct nlist.n_name is a pointer rather than an array.])
192 fi
193fi
194
195AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
196 [AC_INCLUDES_DEFAULT
197#include <signal.h>
198/* NetBSD declares sys_siglist in unistd.h. */
199#if HAVE_UNISTD_H
200# include <unistd.h>
201#endif
202])
203
204
205# Check out the wait reality.
206AC_CHECK_HEADERS(sys/wait.h,,,[[#include <sys/types.h>]])
207AC_CHECK_FUNCS(waitpid wait3)
208AC_MSG_CHECKING(for union wait)
209AC_CACHE_VAL(make_cv_union_wait, [dnl
210 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
211#include <sys/wait.h>]],
212 [[union wait status; int pid; pid = wait (&status);
213#ifdef WEXITSTATUS
214/* Some POSIXoid systems have both the new-style macros and the old
215 union wait type, and they do not work together. If union wait
216 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
217 if (WEXITSTATUS (status) != 0) pid = -1;
218#ifdef WTERMSIG
219 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
220 -- blow chunks here --
221#endif
222#endif
223#ifdef HAVE_WAITPID
224 /* Make sure union wait works with waitpid. */
225 pid = waitpid (-1, &status, 0);
226#endif
227 ]])],
228 [make_cv_union_wait=yes],
229 [make_cv_union_wait=no])])
230if test "$make_cv_union_wait" = yes; then
231 AC_DEFINE(HAVE_UNION_WAIT, 1,
232 [Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
233fi
234AC_MSG_RESULT($make_cv_union_wait)
235
236
237# If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
238if test "$PATH_SEPARATOR" = ';'; then
239 AC_DEFINE(HAVE_DOS_PATHS, 1,
240 [Define to 1 if your system requires backslashes or drive specs in pathnames.])
241fi
242
243
244# See if the user wants to use pmake's "customs" distributed build capability
245
246AC_SUBST(REMOTE) REMOTE=stub
247use_customs=false
248AC_ARG_WITH(customs,
249 AC_HELP_STRING([--with-customs=DIR],
250 [enable remote jobs via Customs--see README.customs]),
251 [case $withval in
252 n|no) : ;;
253 *) make_cppflags="$CPPFLAGS"
254 case $withval in
255 y|ye|yes) : ;;
256 *) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
257 make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
258 esac
259 CF_NETLIBS
260 AC_CHECK_HEADER(customs.h,
261 [use_customs=true
262 REMOTE=cstms
263 LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
264 [with_customs=no
265 CPPFLAGS="$make_cppflags" make_badcust=yes])
266 ;;
267 esac])
268# Tell automake about this, so it can include the right .c files.
269AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true)
270
271# See if the user asked to handle case insensitive file systems.
272
273AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names])
274AC_ARG_ENABLE(case-insensitive-file-system,
275 AC_HELP_STRING([--enable-case-insensitive-file-system],
276 [assume file systems are case insensitive]),
277 [case $enableval in
278 yes) AC_DEFINE(HAVE_CASE_INSENSITIVE_FS) ;;
279 esac])
280
281# See if we can handle the job server feature, and if the user wants it.
282
283AC_ARG_ENABLE(job-server,
284 AC_HELP_STRING([--disable-job-server],
285 [disallow recursive make communication during -jN]),
286 [make_cv_job_server="$enableval" user_job_server="$enableval"],
287 [make_cv_job_server="yes"])
288
289has_wait_nohang=yes
290case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
291 no/no) has_wait_nohang=no ;;
292esac
293
294AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
295 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
296 [[return SA_RESTART;]])],
297 [make_cv_sa_restart=yes],
298 [make_cv_sa_restart=no])])
299
300if test "$make_cv_sa_restart" != no; then
301 AC_DEFINE(HAVE_SA_RESTART, 1,
302 [Define to 1 if <signal.h> defines the SA_RESTART constant.])
303fi
304
305# enable make_cv_sa_restart for OS/2 so that the jobserver will be enabled,
306# but do it after HAVE_SA_RESTART has been defined.
307case "$host_os" in
308 os2*) make_cv_sa_restart=yes ;;
309esac
310
311case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in
312 yes/yes/yes/yes/yes)
313 AC_DEFINE(MAKE_JOBSERVER, 1,
314 [Define to 1 to enable job server support in GNU make.]);;
315esac
316
317# if we have both lstat() and readlink() then we can support symlink
318# timechecks.
319case "$ac_cv_func_lstat/$ac_cv_func_readlink" in
320 yes/yes)
321 AC_DEFINE(MAKE_SYMLINKS, 1,
322 [Define to 1 to enable symbolic link timestamp checking.]);;
323esac
324
325# Find the SCCS commands, so we can include them in our default rules.
326
327AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
328if test -f /usr/sccs/get; then
329 make_cv_path_sccs_get=/usr/sccs/get
330else
331 make_cv_path_sccs_get=get
332fi])
333AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"],
334 [Define to the name of the SCCS 'get' command.])
335
336ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
337if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
338 test -f s.conftest; then
339 # We successfully created an SCCS file.
340 AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
341 if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
342 test -f conftoast; then
343 make_cv_sys_get_minus_G=yes
344 else
345 make_cv_sys_get_minus_G=no
346 fi])
347 case "$make_cv_sys_get_minus_G" in
348 yes) AC_DEFINE(SCCS_GET_MINUS_G, 1,
349 [Define to 1 if the SCCS 'get' command understands the '-G<file>' option.]);;
350 esac
351fi
352rm -f s.conftest conftoast
353
354# Check the system to see if it provides GNU glob. If not, use our
355# local version.
356AC_MSG_CHECKING(if system libc has GNU glob)
357AC_CACHE_VAL(make_cv_sys_gnu_glob, [
358 AC_EGREP_CPP(gnu glob,[
359#include <features.h>
360#include <glob.h>
361#include <fnmatch.h>
362
363#define GLOB_INTERFACE_VERSION 1
364#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
365# include <gnu-versions.h>
366# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
367 gnu glob
368# endif
369#endif
370 ], [AC_MSG_RESULT(yes)
371make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy])
372make_cv_sys_gnu_glob=no])])
373if test "$make_cv_sys_gnu_glob" = no; then
374 GLOBINC='-I$(srcdir)/glob'
375 GLOBLIB=glob/libglob.a
376fi
377AC_SUBST(GLOBINC)
378AC_SUBST(GLOBLIB)
379
380# Tell automake about this, so it can build the right .c files.
381AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no)
382
383# Let the makefile know what our build host is
384
385AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information. (not used by kmk)])
386MAKE_HOST="$host"
387AC_SUBST(MAKE_HOST)
388
389w32_target_env=no
390AM_CONDITIONAL([WINDOWSENV], false)
391
392case "$host" in
393 *-*-mingw32)
394 AM_CONDITIONAL(WINDOWSENV, true)
395 w32_target_env=yes
396 AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
397 AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
398 ;;
399esac
400
401AC_DEFINE_UNQUOTED(PATH_SEPARATOR_CHAR,'$PATH_SEPARATOR',[Define to the character that separates directories in PATH.])
402
403# Include the Maintainer's Makefile section, if it's here.
404
405MAINT_MAKEFILE=/dev/null
406if test -r "$srcdir/maintMakefile"; then
407 MAINT_MAKEFILE="$srcdir/maintMakefile"
408fi
409AC_SUBST_FILE(MAINT_MAKEFILE)
410
411# Allow building with dmalloc
412AM_WITH_DMALLOC
413
414# Forcibly disable SET_MAKE. If it's set it breaks things like the test
415# scripts, etc.
416SET_MAKE=
417
418# Sanity check and inform the user of what we found
419
420case "$make_badcust" in
421 yes) echo
422 echo "WARNING: --with-customs specified but no customs.h could be found;"
423 echo " disabling Customs support."
424 echo ;;
425esac
426
427case "$with_customs" in
428 ""|n|no|y|ye|yes) ;;
429 *) if test -f "$with_customs/lib/libcustoms.a"; then
430 :
431 else
432 echo
433 echo "WARNING: '$with_customs/lib' does not appear to contain the"
434 echo " Customs library. You must build and install Customs"
435 echo " before compiling GNU make."
436 echo
437 fi ;;
438esac
439
440case "$has_wait_nohang" in
441 no) echo
442 echo "WARNING: Your system has neither waitpid() nor wait3()."
443 echo " Without one of these, signal handling is unreliable."
444 echo " You should be aware that running GNU make with -j"
445 echo " could result in erratic behavior."
446 echo ;;
447esac
448
449case "$make_cv_job_server/$user_job_server" in
450 no/yes) echo
451 echo "WARNING: Make job server requires a POSIX-ish system that"
452 echo " supports the pipe(), sigaction(), and either"
453 echo " waitpid() or wait3() functions. Your system doesn't"
454 echo " appear to provide one or more of those."
455 echo " Disabling job server support."
456 echo ;;
457esac
458
459
460# Specify what files are to be created.
461#we can safely drop doc and po when bootstrapping kmk.
462#AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile)
463AC_CONFIG_FILES(Makefile glob/Makefile config/Makefile w32/Makefile)
464
465# OK, do it!
466
467AC_OUTPUT
468
469# We only generate the build.sh if we have a build.sh.in; we won't have
470# one before we've created a distribution.
471if test -f "$srcdir/build.sh.in"; then
472 ./config.status --file build.sh
473 chmod +x build.sh
474fi
475
476dnl Local Variables:
477dnl comment-start: "dnl "
478dnl comment-end: ""
479dnl comment-start-skip: "\\bdnl\\b\\s *"
480dnl compile-command: "make configure config.h.in"
481dnl End:
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