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source: kBuild/vendor/gnumake/current/configure.ac@ 3208

最後變更 在這個檔案從3208是 3138,由 bird 提交於 7 年 前

Imported make 4.2.1 (2e55f5e4abdc0e38c1d64be703b446695e70b3b6) from https://git.savannah.gnu.org/git/make.git.

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1# Process this file with autoconf to produce a configure script.
2#
3# Copyright (C) 1993-2016 Free Software Foundation, Inc.
4# This file is part of GNU Make.
5#
6# GNU Make is free software; you can redistribute it and/or modify it under
7# the terms of the GNU General Public License as published by the Free Software
8# Foundation; either version 3 of the License, or (at your option) any later
9# 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
13# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
14# details.
15#
16# You should have received a copy of the GNU General Public License along with
17# this program. If not, see <http://www.gnu.org/licenses/>.
18
19AC_INIT([GNU make],[4.2.1],[[email protected]])
20
21AC_PREREQ([2.69])
22
23# Autoconf setup
24AC_CONFIG_AUX_DIR([config])
25AC_CONFIG_SRCDIR([vpath.c])
26AC_CONFIG_HEADERS([config.h])
27
28# Automake setup
29# We have to enable "foreign" because ChangeLog is auto-generated
30# We cannot enable -Werror because gettext 0.18.1 has invalid content
31# When we update gettext to 0.18.3 or better we can add it again.
32AM_INIT_AUTOMAKE([1.15 foreign -Werror -Wall])
33
34# Checks for programs.
35AC_USE_SYSTEM_EXTENSIONS
36AC_PROG_CC
37AC_PROG_INSTALL
38AC_PROG_RANLIB
39AC_PROG_CPP
40AC_CHECK_PROG([AR], [ar], [ar], [ar])
41# Perl is needed for the test suite (only)
42AC_CHECK_PROG([PERL], [perl], [perl], [perl])
43
44# Needed for w32/Makefile.am
45AM_PROG_AR
46
47# Specialized system macros
48AC_CANONICAL_HOST
49AC_AIX
50AC_ISC_POSIX
51AC_MINIX
52
53# Enable gettext, in "external" mode.
54AM_GNU_GETTEXT_VERSION([0.19.4])
55AM_GNU_GETTEXT([external])
56
57# This test must come as early as possible after the compiler configuration
58# tests, because the choice of the file model can (in principle) affect
59# whether functions and headers are available, whether they work, etc.
60AC_SYS_LARGEFILE
61
62# Checks for libraries.
63AC_SEARCH_LIBS([getpwnam], [sun])
64
65# Checks for header files.
66AC_HEADER_STDC
67AC_HEADER_DIRENT
68AC_HEADER_STAT
69AC_HEADER_TIME
70AC_CHECK_HEADERS([stdlib.h locale.h unistd.h limits.h fcntl.h string.h \
71 memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h \
72 sys/select.h])
73
74AM_PROG_CC_C_O
75AC_C_CONST
76AC_TYPE_SIGNAL
77AC_TYPE_UID_T
78AC_TYPE_PID_T
79AC_TYPE_OFF_T
80AC_TYPE_SIZE_T
81AC_TYPE_SSIZE_T
82AC_TYPE_UINTMAX_T
83
84# Find out whether our struct stat returns nanosecond resolution timestamps.
85
86AC_STRUCT_ST_MTIM_NSEC
87AC_CACHE_CHECK([whether to use high resolution file timestamps],
88 [make_cv_file_timestamp_hi_res],
89[ make_cv_file_timestamp_hi_res=no
90 AS_IF([test "$ac_cv_struct_st_mtim_nsec" != no],
91 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
92#if HAVE_INTTYPES_H
93# include <inttypes.h>
94#endif]],
95 [[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])],
96 [make_cv_file_timestamp_hi_res=yes])
97 ])])
98AS_IF([test "$make_cv_file_timestamp_hi_res" = yes], [val=1], [val=0])
99AC_DEFINE_UNQUOTED([FILE_TIMESTAMP_HI_RES], [$val],
100 [Use high resolution file timestamps if nonzero.])
101
102AS_IF([test "$make_cv_file_timestamp_hi_res" = yes],
103[ # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
104 # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
105 AC_SEARCH_LIBS([clock_gettime], [rt posix4])
106 AS_IF([test "$ac_cv_search_clock_gettime" != no],
107 [ AC_DEFINE([HAVE_CLOCK_GETTIME], [1],
108 [Define to 1 if you have the clock_gettime function.])
109 ])
110])
111
112# Check for DOS-style pathnames.
113pds_AC_DOS_PATHS
114
115# See if we have a standard version of gettimeofday(). Since actual
116# implementations can differ, just make sure we have the most common
117# one.
118AC_CACHE_CHECK([for standard gettimeofday], [ac_cv_func_gettimeofday],
119 [ac_cv_func_gettimeofday=no
120 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
121 int main ()
122 {
123 struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
124 exit (gettimeofday (&t, 0) != 0
125 || t.tv_sec < 0 || t.tv_usec < 0);
126 }]])],
127 [ac_cv_func_gettimeofday=yes],
128 [ac_cv_func_gettimeofday=no],
129 [ac_cv_func_gettimeofday="no (cross-compiling)"])])
130AS_IF([test "$ac_cv_func_gettimeofday" = yes],
131[ AC_DEFINE([HAVE_GETTIMEOFDAY], [1],
132 [Define to 1 if you have a standard gettimeofday function])
133])
134
135AC_CHECK_FUNCS([strdup strndup mkstemp mktemp fdopen fileno \
136 dup dup2 getcwd realpath sigsetmask sigaction \
137 getgroups seteuid setegid setlinebuf setreuid setregid \
138 getrlimit setrlimit setvbuf pipe strerror strsignal \
139 lstat readlink atexit isatty ttyname pselect])
140
141# We need to check declarations, not just existence, because on Tru64 this
142# function is not declared without special flags, which themselves cause
143# other problems. We'll just use our own.
144AC_CHECK_DECLS([bsd_signal], [], [], [[#define _GNU_SOURCE 1
145#include <signal.h>]])
146
147AC_FUNC_FORK
148
149AC_FUNC_SETVBUF_REVERSED
150
151# Rumor has it that strcasecmp lives in -lresolv on some odd systems.
152# It doesn't hurt much to use our own if we can't find it so I don't
153# make the effort here.
154AC_CHECK_FUNCS([strcasecmp strncasecmp strcmpi strncmpi stricmp strnicmp])
155
156# strcoll() is used by the GNU glob library
157AC_FUNC_STRCOLL
158
159AC_FUNC_ALLOCA
160AC_FUNC_CLOSEDIR_VOID
161
162# See if the user wants to add (or not) GNU Guile support
163PKG_PROG_PKG_CONFIG
164AC_ARG_WITH([guile], [AS_HELP_STRING([--with-guile],
165 [Support GNU Guile for embedded scripting])])
166
167# For some strange reason, at least on Ubuntu, each version of Guile
168# comes with it's own PC file so we have to specify them as individual
169# packages. Ugh.
170AS_IF([test "x$with_guile" != xno],
171[ PKG_CHECK_MODULES([GUILE], [guile-2.0], [have_guile=yes],
172 [PKG_CHECK_MODULES([GUILE], [guile-1.8], [have_guile=yes],
173 [have_guile=no])])
174])
175
176AS_IF([test "$have_guile" = yes],
177 [AC_DEFINE([HAVE_GUILE], [1], [Embed GNU Guile support])])
178
179AM_CONDITIONAL([HAVE_GUILE], [test "$have_guile" = yes])
180
181AC_FUNC_GETLOADAVG
182
183# AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
184# doesn't. So, we will.
185
186AS_IF([test "$ac_cv_header_nlist_h" = yes],
187[ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
188 [[struct nlist nl;
189 nl.n_name = "string";
190 return 0;]])],
191 [make_cv_nlist_struct=yes],
192 [make_cv_nlist_struct=no])
193 AS_IF([test "$make_cv_nlist_struct" = yes],
194 [ AC_DEFINE([NLIST_STRUCT], [1],
195 [Define to 1 if struct nlist.n_name is a pointer rather than an array.])
196 ])
197])
198
199AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
200 [AC_INCLUDES_DEFAULT
201#include <signal.h>
202/* NetBSD declares sys_siglist in unistd.h. */
203#if HAVE_UNISTD_H
204# include <unistd.h>
205#endif
206])
207
208
209# Check out the wait reality.
210AC_CHECK_HEADERS([sys/wait.h],[],[],[[#include <sys/types.h>]])
211AC_CHECK_FUNCS([waitpid wait3])
212AC_CACHE_CHECK([for union wait], [make_cv_union_wait],
213[ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
214#include <sys/wait.h>]],
215 [[union wait status; int pid; pid = wait (&status);
216#ifdef WEXITSTATUS
217/* Some POSIXoid systems have both the new-style macros and the old
218 union wait type, and they do not work together. If union wait
219 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
220 if (WEXITSTATUS (status) != 0) pid = -1;
221#ifdef WTERMSIG
222 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
223 -- blow chunks here --
224#endif
225#endif
226#ifdef HAVE_WAITPID
227 /* Make sure union wait works with waitpid. */
228 pid = waitpid (-1, &status, 0);
229#endif
230 ]])],
231 [make_cv_union_wait=yes],
232 [make_cv_union_wait=no])
233])
234AS_IF([test "$make_cv_union_wait" = yes],
235[ AC_DEFINE([HAVE_UNION_WAIT], [1],
236 [Define to 1 if you have the 'union wait' type in <sys/wait.h>.])
237])
238
239
240# If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
241AS_IF([test "$PATH_SEPARATOR" = ';'],
242[ AC_DEFINE([HAVE_DOS_PATHS], [1],
243 [Define to 1 if your system requires backslashes or drive specs in pathnames.])
244])
245
246# See if the user wants to use pmake's "customs" distributed build capability
247AC_SUBST([REMOTE]) REMOTE=stub
248use_customs=false
249AC_ARG_WITH([customs],
250[AC_HELP_STRING([--with-customs=DIR],
251 [enable remote jobs via Customs--see README.customs])],
252[ AS_CASE([$withval], [n|no], [:],
253 [make_cppflags="$CPPFLAGS"
254 AS_CASE([$withval],
255 [y|ye|yes], [:],
256 [CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
257 make_ldflags="$LDFLAGS -L$with_customs/lib"])
258 CF_NETLIBS
259 AC_CHECK_HEADER([customs.h],
260 [use_customs=true
261 REMOTE=cstms
262 LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
263 [with_customs=no
264 CPPFLAGS="$make_cppflags" make_badcust=yes])
265 ])
266])
267
268# Tell automake about this, so it can include the right .c files.
269AM_CONDITIONAL([USE_CUSTOMS], [test "$use_customs" = true])
270
271# See if the user asked to handle case insensitive file systems.
272AH_TEMPLATE([HAVE_CASE_INSENSITIVE_FS], [Use case insensitive file names])
273AC_ARG_ENABLE([case-insensitive-file-system],
274 AC_HELP_STRING([--enable-case-insensitive-file-system],
275 [assume file systems are case insensitive]),
276 [AS_IF([test "$enableval" = yes], [AC_DEFINE([HAVE_CASE_INSENSITIVE_FS])])])
277
278# See if we can handle the job server feature, and if the user wants it.
279AC_ARG_ENABLE([job-server],
280 AC_HELP_STRING([--disable-job-server],
281 [disallow recursive make communication during -jN]),
282 [make_cv_job_server="$enableval" user_job_server="$enableval"],
283 [make_cv_job_server="yes"])
284
285AS_IF([test "$ac_cv_func_waitpid" = no && test "$ac_cv_func_wait3" = no],
286 [has_wait_nohang=no],
287 [has_wait_nohang=yes])
288
289AC_CACHE_CHECK([for SA_RESTART], [make_cv_sa_restart], [
290 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
291 [[return SA_RESTART;]])],
292 [make_cv_sa_restart=yes],
293 [make_cv_sa_restart=no])])
294
295AS_IF([test "$make_cv_sa_restart" != no],
296[ AC_DEFINE([HAVE_SA_RESTART], [1],
297 [Define to 1 if <signal.h> defines the SA_RESTART constant.])
298])
299
300# Only allow jobserver on systems that support it
301AS_CASE([/$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/],
302 [*/no/*], [make_cv_job_server=no])
303
304# Also supported on OS2 and MinGW
305AS_CASE([$host_os], [os2*|mingw*], [make_cv_job_server=yes])
306
307# If we support it and the user didn't disable it, build with jobserver
308AS_CASE([/$make_cv_job_server/$user_job_server/],
309 [*/no/*], [: no jobserver],
310 [AC_DEFINE(MAKE_JOBSERVER, 1,
311 [Define to 1 to enable job server support in GNU make.])
312 ])
313
314# If dl*() functions are supported we can enable the load operation
315AC_CHECK_DECLS([dlopen, dlsym, dlerror], [], [],
316 [[#include <dlfcn.h>]])
317
318AC_ARG_ENABLE([load],
319 AC_HELP_STRING([--disable-load],
320 [disable support for the 'load' operation]),
321 [make_cv_load="$enableval" user_load="$enableval"],
322 [make_cv_load="yes"])
323
324AS_CASE([/$ac_cv_have_decl_dlopen/$ac_cv_have_decl_dlsym/$ac_cv_have_decl_dlerror/],
325 [*/no/*], [make_cv_load=no])
326
327# We might need -ldl
328AS_IF([test "$make_cv_load" = yes], [
329 AC_SEARCH_LIBS([dlopen], [dl], [], [make_cv_load=])
330 ])
331
332AS_CASE([/$make_cv_load/$user_load/],
333 [*/no/*], [make_cv_load=no],
334 [AC_DEFINE(MAKE_LOAD, 1,
335 [Define to 1 to enable 'load' support in GNU make.])
336 ])
337
338# If we want load support, we might need to link with export-dynamic.
339# See if we can figure it out. Unfortunately this is very difficult.
340# For example passing -rdynamic to the SunPRO linker gives a warning
341# but succeeds and creates a shared object, not an executable!
342AS_IF([test "$make_cv_load" = yes], [
343 AC_MSG_CHECKING([If the linker accepts -Wl,--export-dynamic])
344 old_LDFLAGS="$LDFLAGS"
345 LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
346 AC_LINK_IFELSE([AC_LANG_SOURCE([int main(){}])],
347 [AC_MSG_RESULT([yes])
348 AC_SUBST([AM_LDFLAGS], [-Wl,--export-dynamic])],
349 [AC_MSG_RESULT([no])
350 AC_MSG_CHECKING([If the linker accepts -rdynamic])
351 LDFLAGS="$old_LDFLAGS -rdynamic"
352 AC_LINK_IFELSE([AC_LANG_SOURCE([int main(){}])],
353 [AC_MSG_RESULT([yes])
354 AC_SUBST([AM_LDFLAGS], [-rdynamic])],
355 [AC_MSG_RESULT([no])])
356 ])
357 LDFLAGS="$old_LDFLAGS"
358])
359
360# if we have both lstat() and readlink() then we can support symlink
361# timechecks.
362AS_IF([test "$ac_cv_func_lstat" = yes && test "$ac_cv_func_readlink" = yes],
363 [ AC_DEFINE([MAKE_SYMLINKS], [1],
364 [Define to 1 to enable symbolic link timestamp checking.])
365])
366
367# Find the SCCS commands, so we can include them in our default rules.
368
369AC_CACHE_CHECK([for location of SCCS get command], [make_cv_path_sccs_get], [
370 AS_IF([test -f /usr/sccs/get],
371 [make_cv_path_sccs_get=/usr/sccs/get],
372 [make_cv_path_sccs_get=get])
373])
374AC_DEFINE_UNQUOTED([SCCS_GET], ["$make_cv_path_sccs_get"],
375 [Define to the name of the SCCS 'get' command.])
376
377ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
378AS_IF([(/usr/sccs/admin -n s.conftest || admin -n s.conftest) >/dev/null 2>&1 &&
379 test -f s.conftest],
380[ # We successfully created an SCCS file.
381 AC_CACHE_CHECK([if SCCS get command understands -G], [make_cv_sys_get_minus_G],
382 [AS_IF([$make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
383 test -f conftoast],
384 [make_cv_sys_get_minus_G=yes],
385 [make_cv_sys_get_minus_G=no])
386 ])
387 AS_IF([test "$make_cv_sys_get_minus_G" = yes],
388 [AC_DEFINE([SCCS_GET_MINUS_G], [1],
389 [Define to 1 if the SCCS 'get' command understands the '-G<file>' option.])
390 ])
391])
392rm -f s.conftest conftoast
393
394# Check the system to see if it provides GNU glob. If not, use our
395# local version.
396AC_CACHE_CHECK([if system libc has GNU glob], [make_cv_sys_gnu_glob],
397[ AC_EGREP_CPP([gnu glob],[
398#include <features.h>
399#include <glob.h>
400#include <fnmatch.h>
401
402#define GLOB_INTERFACE_VERSION 1
403#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
404# include <gnu-versions.h>
405# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
406 gnu glob
407# endif
408#endif],
409 [make_cv_sys_gnu_glob=yes],
410 [make_cv_sys_gnu_glob=no])])
411AS_IF([test "$make_cv_sys_gnu_glob" = no],
412[ GLOBINC='-I$(srcdir)/glob'
413 GLOBLIB=glob/libglob.a
414])
415AC_SUBST([GLOBINC])
416AC_SUBST([GLOBLIB])
417
418# Tell automake about this, so it can build the right .c files.
419AM_CONDITIONAL([USE_LOCAL_GLOB], [test "$make_cv_sys_gnu_glob" = no])
420
421# Let the makefile know what our build host is
422
423AC_DEFINE_UNQUOTED([MAKE_HOST],["$host"],[Build host information.])
424MAKE_HOST="$host"
425AC_SUBST([MAKE_HOST])
426
427w32_target_env=no
428AM_CONDITIONAL([WINDOWSENV], [false])
429
430AS_CASE([$host],
431 [*-*-mingw32],
432 [AM_CONDITIONAL([WINDOWSENV], [true])
433 w32_target_env=yes
434 AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
435 AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
436 ])
437
438AC_DEFINE_UNQUOTED([PATH_SEPARATOR_CHAR],['$PATH_SEPARATOR'],
439 [Define to the character that separates directories in PATH.])
440
441# Include the Maintainer's Makefile section, if it's here.
442
443MAINT_MAKEFILE=/dev/null
444AS_IF([test -r "$srcdir/maintMakefile"],
445[ MAINT_MAKEFILE="$srcdir/maintMakefile"
446])
447AC_SUBST_FILE([MAINT_MAKEFILE])
448
449# Allow building with dmalloc
450AM_WITH_DMALLOC
451
452# Forcibly disable SET_MAKE. If it's set it breaks things like the test
453# scripts, etc.
454SET_MAKE=
455
456# Sanity check and inform the user of what we found
457
458AS_IF([test "x$make_badcust" = xyes], [
459echo
460echo "WARNING: --with-customs specified but no customs.h could be found;"
461echo " disabling Customs support."
462echo
463])
464
465AS_CASE([$with_customs],
466[""|n|no|y|ye|yes], [:],
467[AS_IF([test -f "$with_customs/lib/libcustoms.a"], [:],
468[ echo
469 echo "WARNING: '$with_customs/lib' does not appear to contain the"
470 echo " Customs library. You must build and install Customs"
471 echo " before compiling GNU make."
472 echo
473])])
474
475AS_IF([test "x$has_wait_nohang" = xno],
476[ echo
477 echo "WARNING: Your system has neither waitpid() nor wait3()."
478 echo " Without one of these, signal handling is unreliable."
479 echo " You should be aware that running GNU make with -j"
480 echo " could result in erratic behavior."
481 echo
482])
483
484AS_IF([test "x$make_cv_job_server" = xno && test "x$user_job_server" = xyes],
485[ echo
486 echo "WARNING: Make job server requires a POSIX-ish system that"
487 echo " supports the pipe(), sigaction(), and either"
488 echo " waitpid() or wait3() functions. Your system doesn't"
489 echo " appear to provide one or more of those."
490 echo " Disabling job server support."
491 echo
492])
493
494AS_IF([test "x$make_cv_load" = xno && test "x$user_load" = xyes],
495[ echo
496 echo "WARNING: 'load' support requires a POSIX-ish system that"
497 echo " supports the dlopen(), dlsym(), and dlerror() functions."
498 echo " Your system doesn't appear to provide one or more of these."
499 echo " Disabling 'load' support."
500 echo
501])
502
503# Specify what files are to be created.
504AC_CONFIG_FILES([Makefile glob/Makefile po/Makefile.in config/Makefile \
505 doc/Makefile w32/Makefile tests/config-flags.pm])
506
507# OK, do it!
508
509AC_OUTPUT
510
511# We only generate the build.sh if we have a build.sh.in; we won't have
512# one before we've created a distribution.
513AS_IF([test -f "$srcdir/build.sh.in"],
514[ ./config.status --file build.sh
515 chmod +x build.sh
516])
517
518dnl Local Variables:
519dnl comment-start: "dnl "
520dnl comment-end: ""
521dnl comment-start-skip: "\\bdnl\\b\\s *"
522dnl compile-command: "make configure config.h.in"
523dnl End:
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