1 dnl Process this file with autoconf to produce a configure script.
2 AC_REVISION([$Id: configure.in,v 1.105 2001/07/05 00:35:03 psmith Exp $])
3 AC_PREREQ(2.13)dnl dnl Minimum Autoconf version required.
4 AC_INIT(vpath.c)dnl dnl A distinctive file to look for in srcdir.
6 AM_INIT_AUTOMAKE(make, 3.79.1.90)
7 AM_CONFIG_HEADER(config.h)
9 dnl Regular configure stuff
15 AC_CHECK_PROG(AR, ar, ar, ar)
17 AC_PROG_CPP dnl Later checks need this.
22 AC_CHECK_PROG(PERL, perl, perl, perl) dnl Needed for the test suite (only)
24 dnl This test must come as early as possible after the compiler configuration
25 dnl tests, because the choice of the file model can (in principle) affect
26 dnl whether functions and headers are available, whether they work, etc.
31 AC_TYPE_UID_T dnl Also does gid_t.
34 AC_CHECK_HEADERS(stdlib.h unistd.h limits.h sys/param.h fcntl.h string.h \
35 memory.h sys/time.h sys/timeb.h)
38 AC_C_CONST dnl getopt needs this.
39 AC_C_INLINE dnl gettext needs this.
43 dnl Handle internationalization
45 ALL_LINGUAS="da de es fr gl ja ko nl pl pt_BR ru tr"
49 AC_STRUCT_ST_MTIM_NSEC
50 AC_MSG_CHECKING([whether to use high resolution file timestamps])
51 AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [
52 make_cv_file_timestamp_hi_res=no
53 if test $ac_cv_struct_st_mtim_nsec != no; then
56 # include <inttypes.h>
58 [char a[0x7fffffff < (uintmax_t) -1 >> 30 ? 1 : -1];],
59 make_cv_file_timestamp_hi_res=yes)
61 AC_MSG_RESULT($make_cv_file_timestamp_hi_res)
62 if test $make_cv_file_timestamp_hi_res = yes; then
67 AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val,
68 [Use high resolution file timestamps if nonzero.])
70 if test $make_cv_file_timestamp_hi_res = yes; then
71 # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
72 # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
73 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
74 if test "$ac_cv_search_clock_gettime" != no; then
75 AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
76 [Define if you have the clock_gettime function.])
82 AC_DEFUN(AC_CHECK_SYMBOL, [dnl
83 AC_MSG_CHECKING(for $1)
84 AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl
85 AC_TRY_LINK(, [extern char *sys_siglist[]; puts(*sys_siglist);],
86 ac_cv_check_symbol_$1=yes, ac_cv_check_symbol_$1=no)])
87 if test "$ac_cv_check_symbol_$1" = yes; then
89 ac_tr_symbol=`echo $1 | tr '[a-z]' '[A-Z]'`
91 AC_DEFINE_UNQUOTED(HAVE_${ac_tr_symbol})
93 AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl
95 # See if we have a standard version of gettimeofday(). Since actual
96 # implementations can differ, just make sure we have the most common
98 AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday,
99 [ac_cv_func_gettimeofday=no
100 AC_TRY_RUN([#include <sys/time.h>
103 struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
104 exit (gettimeofday (&t, 0) != 0
105 || t.tv_sec < 0 || t.tv_usec < 0);
107 ac_cv_func_gettimeofday=yes,
108 ac_cv_func_gettimeofday=no,
109 ac_cv_func_gettimeofday="no (cross-compiling)")])
110 if test $ac_cv_func_gettimeofday = yes; then
111 AC_DEFINE(HAVE_GETTIMEOFDAY, 1,
112 [Define if you have a standard gettimeofday function])
115 AC_CHECK_FUNCS( memmove memcpy strchr strdup psignal mkstemp mktemp fdopen \
116 bsd_signal dup2 getcwd sigsetmask sigaction getgroups \
117 setlinebuf seteuid setegid setreuid setregid pipe \
120 AC_CHECK_SYMBOL(sys_siglist)
125 AC_FUNC_CLOSEDIR_VOID
126 AC_FUNC_SETVBUF_REVERSED
128 AC_CHECK_LIB(kstat, kstat_open) dnl _Must_ come before AC_FUNC_GETLOADAVG.
129 AC_CHECK_FUNCS(pstat_getdynamic) dnl Supposedly in AC_FUNC_GETLOADAVG, but...?
132 # Check out the wait reality.
133 AC_CHECK_HEADERS(sys/wait.h)
134 AC_CHECK_FUNCS(waitpid wait3)
135 AC_MSG_CHECKING(for union wait)
136 AC_CACHE_VAL(make_cv_union_wait, [dnl
137 AC_TRY_LINK([#include <sys/types.h>
138 #include <sys/wait.h>],
139 [union wait status; int pid; pid = wait (&status);
141 /* Some POSIXoid systems have both the new-style macros and the old
142 union wait type, and they do not work together. If union wait
143 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
144 if (WEXITSTATUS (status) != 0) pid = -1;
146 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
147 -- blow chunks here --
151 /* Make sure union wait works with waitpid. */
152 pid = waitpid (-1, &status, 0);
155 [make_cv_union_wait=yes], [make_cv_union_wait=no])])
156 if test "$make_cv_union_wait" = yes; then
157 AC_DEFINE(HAVE_UNION_WAIT, 1, [Define this if you have the \`union wait' type in <sys/wait.h>.])
159 AC_MSG_RESULT($make_cv_union_wait)
163 # The presence of the following is not meant to imply
164 # that make necessarily works on those systems.
165 AC_SEARCH_LIBS(getpwnam, sun)
167 AC_SUBST(REMOTE) REMOTE=stub
170 [ --with-customs=DIR Enable remote jobs via Customs--see README.customs],
173 *) make_cppflags="$CPPFLAGS"
176 *) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
177 make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
180 AC_CHECK_HEADER(customs.h,
182 LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags",
184 CPPFLAGS="$make_cppflags" make_badcust=yes)
188 dnl See if we can handle the job server feature, and if the user wants it.
190 AC_ARG_ENABLE(job-server,
191 [ --disable-job-server Disallow recursive make communication during -jN],
192 [make_cv_job_server="$enableval" user_job_server="$enableval"],
193 [make_cv_job_server="yes"])
196 case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
197 no/no) has_wait_nohang=no ;;
200 AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
201 AC_TRY_COMPILE([#include <signal.h>],
202 [return SA_RESTART;],
203 make_cv_sa_restart=yes,
204 make_cv_sa_restart=no)])
205 if test "$make_cv_sa_restart" != no; then
206 AC_DEFINE(HAVE_SA_RESTART, 1,
207 [Define if <signal.h> defines the SA_RESTART constant.])
210 case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in
212 AC_DEFINE(MAKE_JOBSERVER, 1,
213 [Define this to enable job server support in GNU make.]);;
216 dnl Allow building with dmalloc
218 AC_ARG_ENABLE(dmalloc,
219 [ --enable-dmalloc Enable support for the dmalloc debugging library],
220 [make_cv_dmalloc="$enableval"],
221 [make_cv_dmalloc="no"])
223 case "$make_cv_dmalloc" in
224 yes) AC_CHECK_HEADERS(dmalloc.h)
225 AC_CHECK_LIB(dmalloc, dmalloc_shutdown)
226 CPPFLAGS="$CPPFLAGS -DDMALLOC_FUNC_CHECK" ;;
229 AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
230 if test -f /usr/sccs/get; then
231 make_cv_path_sccs_get=/usr/sccs/get
233 make_cv_path_sccs_get=get
235 AC_DEFINE_UNQUOTED(SCCS_GET,["$make_cv_path_sccs_get"])
237 ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
238 if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
239 test -f s.conftest; then
240 # We successfully created an SCCS file.
241 AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
242 if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
243 test -f conftoast; then
244 make_cv_sys_get_minus_G=yes
246 make_cv_sys_get_minus_G=no
248 case "$make_cv_sys_get_minus_G" in
249 yes) AC_DEFINE(SCCS_GET_MINUS_G, 1,
250 [Define this if the SCCS \`get' command understands the \`-G<file>' option.]);;
253 rm -f s.conftest conftoast
255 AC_MSG_CHECKING(if system libc has GNU glob)
256 AC_CACHE_VAL(make_cv_sys_gnu_glob, [
258 #include <features.h>
262 #define GLOB_INTERFACE_VERSION 1
263 #if defined _LIBC || !defined __GNU_LIBRARY__ || __GNU_LIBRARY__ <= 1
266 # include <gnu-versions.h>
267 # if _GNU_GLOB_INTERFACE_VERSION != GLOB_INTERFACE_VERSION
271 ], make_cv_sys_gnu_glob=yes, make_cv_sys_gnu_glob=no)])
272 case "$make_cv_sys_gnu_glob" in
273 yes) AC_MSG_RESULT(yes) ;;
274 no) AC_MSG_RESULT([no; using local copy])
275 AC_SUBST(GLOBDIR) GLOBDIR=glob
276 AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob'
277 AC_SUBST(GLOBLIB) GLOBLIB=glob/libglob.a
281 AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.])
285 MAINT_MAKEFILE=/dev/null
286 if test -r "$srcdir/maintMakefile"; then
287 MAINT_MAKEFILE="$srcdir/maintMakefile"
289 AC_SUBST_FILE(MAINT_MAKEFILE)
291 AC_OUTPUT(build.sh Makefile glob/Makefile i18n/Makefile)
293 dnl If we don't yet have build.sh.in, build.sh is a bogus 0-length file
295 dnl Can't do this because then remote builds with build.sh don't work.
296 dnl test -f build.sh.in || rm -f build.sh
299 case "$make_badcust" in
301 echo "WARNING: --with-customs specified but no customs.h could be found;"
302 echo " disabling Customs support."
306 case "$with_customs" in
308 *) if test -f "$with_customs/lib/libcustoms.a"; then
312 echo "WARNING: \`$with_customs/lib' does not appear to contain the"
313 echo " Customs library. You must build and install Customs"
314 echo " before compiling GNU make."
319 case "$has_wait_nohang" in
321 echo "WARNING: Your system has neither waitpid() nor wait3()."
322 echo " Without one of these, signal handling is unreliable."
323 echo " You should be aware that running GNU make with -j"
324 echo " could result in erratic behavior."
328 case "$make_cv_job_server/$user_job_server" in
330 echo "WARNING: Make job server requires a POSIX-ish system that"
331 echo " supports the pipe(), sigaction(), and either"
332 echo " waitpid() or wait3() functions. Your system doesn't"
333 echo " appear to provide one or more of those."
334 echo " Disabling job server support."
339 dnl comment-start: "dnl "
341 dnl comment-start-skip: "\\bdnl\\b\\s *"
342 dnl compile-command: "make configure config.h.in"