1 dnl Process this file with autoconf to produce a configure script.
2 AC_REVISION([$Id: configure.in,v 1.87 1999/11/17 07:33:54 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, 3.78.1)
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)
25 dnl This test must come as early as possible after the compiler configuration
26 dnl tests, because the choice of the file model can (in principle) affect
27 dnl whether functions and headers are available, whether they work, etc.
32 AC_TYPE_UID_T dnl Also does gid_t.
35 AC_CHECK_HEADERS(stdlib.h unistd.h limits.h sys/param.h fcntl.h string.h \
39 AC_C_CONST dnl getopt needs this.
42 AC_STRUCT_ST_MTIM_NSEC
47 AC_DEFUN(AC_CHECK_SYMBOL, [dnl
48 AC_MSG_CHECKING(for $1)
49 AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl
50 AC_TRY_LINK(, [extern char *sys_siglist[]; puts(*sys_siglist);],
51 ac_cv_check_symbol_$1=yes, ac_cv_check_symbol_$1=no)])
52 if test "$ac_cv_check_symbol_$1" = yes; then
54 ac_tr_symbol=`echo $1 | tr '[a-z]' '[A-Z]'`
56 AC_DEFINE_UNQUOTED(HAVE_${ac_tr_symbol})
58 AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl
60 # clock_gettime is in -lposix4 in Solaris 2.6.
61 AC_CHECK_LIB(posix4, clock_gettime)
63 AC_CHECK_FUNCS(memmove strchr memcpy strdup psignal mktemp pstat_getdynamic \
64 clock_gettime dup2 getcwd sigsetmask sigaction getgroups \
65 setlinebuf seteuid setegid setreuid setregid pipe \
67 AC_CHECK_SYMBOL(sys_siglist)
73 AC_FUNC_SETVBUF_REVERSED
76 AC_CHECK_LIB(kstat, kstat_open) dnl _Must_ come before AC_FUNC_GETLOADAVG.
79 # Check out the wait reality.
80 AC_CHECK_HEADERS(sys/wait.h)
81 AC_CHECK_FUNCS(waitpid wait3)
82 AC_MSG_CHECKING(for union wait)
83 AC_CACHE_VAL(make_cv_union_wait, [dnl
84 AC_TRY_LINK([#include <sys/types.h>
85 #include <sys/wait.h>],
86 [union wait status; int pid; pid = wait (&status);
88 /* Some POSIXoid systems have both the new-style macros and the old
89 union wait type, and they do not work together. If union wait
90 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
91 if (WEXITSTATUS (status) != 0) pid = -1;
93 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
94 -- blow chunks here --
98 /* Make sure union wait works with waitpid. */
99 pid = waitpid (-1, &status, 0);
102 [make_cv_union_wait=yes], [make_cv_union_wait=no])])
103 if test "$make_cv_union_wait" = yes; then
104 AC_DEFINE(HAVE_UNION_WAIT)
106 AC_MSG_RESULT($make_cv_union_wait)
110 # The presence of the following is not meant to imply
111 # that make necessarily works on those systems.
112 AC_CHECK_LIB(sun, getpwnam)
114 AC_SUBST(REMOTE) REMOTE=stub
117 [ --with-customs=DIR Enable remote jobs via Customs--see README.customs],
120 *) make_cppflags="$CPPFLAGS"
123 *) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
124 make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
127 AC_CHECK_HEADER(customs.h,
129 LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags",
131 CPPFLAGS="$make_cppflags" make_badcust=yes)
135 dnl See if we can handle the job server feature, and if the user wants it.
137 AC_ARG_ENABLE(job-server,
138 [ --disable-job-server Disallow recursive make communication during -jN],
139 [make_cv_job_server="$enableval" user_job_server="$enableval"],
140 [make_cv_job_server="yes"])
143 case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
144 no/no) has_wait_nohang=no ;;
147 case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$has_wait_nohang/$make_cv_job_server" in
148 yes/yes/yes/yes) AC_DEFINE(MAKE_JOBSERVER) ;;
151 dnl Allow building with dmalloc
153 AC_ARG_ENABLE(dmalloc,
154 [ --enable-dmalloc Enable support for the dmalloc debugging library],
155 [make_cv_dmalloc="$enableval"],
156 [make_cv_dmalloc="no"])
158 case "$make_cv_dmalloc" in
159 yes) AC_CHECK_HEADERS(dmalloc.h)
160 AC_CHECK_LIB(dmalloc, dmalloc_shutdown)
161 CPPFLAGS="$CPPFLAGS -DDMALLOC_FUNC_CHECK" ;;
164 AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
165 if test -f /usr/sccs/get; then
166 make_cv_path_sccs_get=/usr/sccs/get
168 make_cv_path_sccs_get=get
170 AC_DEFINE_UNQUOTED(SCCS_GET,["$make_cv_path_sccs_get"])
172 ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
173 if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
174 test -f s.conftest; then
175 # We successfully created an SCCS file.
176 AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
177 if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
178 test -f conftoast; then
179 make_cv_sys_get_minus_G=yes
181 make_cv_sys_get_minus_G=no
183 case "$make_cv_sys_get_minus_G" in
184 yes) AC_DEFINE(SCCS_GET_MINUS_G);;
187 rm -f s.conftest conftoast
189 AC_MSG_CHECKING(if system libc has GNU glob)
190 AC_CACHE_VAL(make_cv_sys_gnu_glob, [
192 #include <features.h>
196 #define GLOB_INTERFACE_VERSION 1
197 #if defined _LIBC || !defined __GNU_LIBRARY__ || __GNU_LIBRARY__ <= 1
200 # include <gnu-versions.h>
201 # if _GNU_GLOB_INTERFACE_VERSION != GLOB_INTERFACE_VERSION
205 ], make_cv_sys_gnu_glob=yes, make_cv_sys_gnu_glob=no)])
206 case "$make_cv_sys_gnu_glob" in
207 yes) AC_MSG_RESULT(yes) ;;
208 no) AC_MSG_RESULT([no; using local copy])
209 AC_SUBST(GLOBDIR) GLOBDIR=glob
210 AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob'
211 AC_SUBST(GLOBLIB) GLOBLIB=glob/libglob.a
215 AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.])
219 MAINT_MAKEFILE=/dev/null
220 if test -r "$srcdir/maintMakefile"; then
221 MAINT_MAKEFILE="$srcdir/maintMakefile"
223 AC_SUBST_FILE(MAINT_MAKEFILE)
225 AC_OUTPUT(build.sh Makefile glob/Makefile)
227 dnl If we don't yet have build.sh.in, build.sh is a bogus 0-length file
229 dnl Can't do this because then remote builds with build.sh don't work.
230 dnl test -f build.sh.in || rm -f build.sh
233 case "$make_badcust" in
235 echo "WARNING: --with-customs specified but no customs.h could be found;"
236 echo " disabling Customs support."
240 case "$with_customs" in
242 *) if test -f "$with_customs/lib/libcustoms.a"; then
246 echo "WARNING: \`$with_customs/lib' does not appear to contain the"
247 echo " Customs library. You must build and install Customs"
248 echo " before compiling GNU make."
253 case "$has_wait_nohang" in
255 echo "WARNING: Your system has neither waitpid() nor wait3()."
256 echo " Without one of these, signal handling is unreliable."
257 echo " You should be aware that running GNU make with -j"
258 echo " could result in erratic behavior."
262 case "$make_cv_job_server/$user_job_server" in
264 echo "WARNING: Make job server requires a POSIX-ish system that"
265 echo " supports the pipe(), sigaction(), and either"
266 echo " waitpid() or wait3() functions. Your system doesn't"
267 echo " appear to provide one or more of those."
268 echo " Disabling job server support."
273 dnl comment-start: "dnl "
275 dnl comment-start-skip: "\\bdnl\\b\\s *"
276 dnl compile-command: "make configure config.h.in"