xref: /freebsd/contrib/bmake/configure.in (revision 39ee7a7a6bdd1557b1c3532abf60d139798ac88b) 
1dnl
2dnl RCSid:
3dnl	$Id: configure.in,v 1.54 2015/10/10 04:17:10 sjg Exp $
4dnl
5dnl Process this file with autoconf to produce a configure script
6dnl
7AC_PREREQ(2.50)
8AC_INIT([bmake], [20151009], [sjg@NetBSD.org])
9AC_CONFIG_HEADERS(config.h)
10
11dnl make srcdir absolute
12case "$srcdir" in
13/*) ;;
14*) srcdir=`cd $srcdir && pwd`;;
15esac
16
17dnl
18AC_ARG_WITH(defshell,
19[  --with-defshell=SHELL  use SHELL by default - must be sh compatible, use sh or ksh to pick the internal definitions],
20[case "${withval}" in
21yes)   AC_MSG_ERROR(bad value ${withval} given for bmake DEFSHELL) ;;
22no)    ;;
23*)     case "$with_defshell" in
24       sh)  DEFSHELL_INDEX=DEFSHELL_INDEX_SH;;	# it's the default anyway
25       ksh) DEFSHELL_INDEX=DEFSHELL_INDEX_KSH;;
26       csh) DEFSHELL_INDEX=DEFSHELL_INDEX_CSH;;	# kidding right?
27       *)   defshell_path=$with_defshell;;	# better be sh compatible!
28       esac
29       ;;
30       esac])
31dnl
32use_meta=yes
33AC_ARG_WITH(meta,
34[ --without-meta dissable use of meta-mode],
35[case "${withval}" in
36yes|no) use_meta=${withval};;
37*) AC_MSG_ERROR(bad value ${withval} given for meta) ;;
38esac])
39dnl
40AC_ARG_WITH(filemon,
41[ --with-filemon=path/filemon.h indicate path to filemon.h for meta-mode],
42[ case "/${withval}" in
43/no|*/filemon.h) filemon_h="${withval}";;
44*/filemon*) filemon_h="${withval}/filemon.h";;
45*) AC_MSG_ERROR(bad value ${withval} given for filemon) ;;
46esac],
47[
48OS=`uname -s`
49for d in "/usr/include/dev/filemon" "$prefix/include/dev/filemon" "$srcdir/filemon" "$srcdir/../filemon" "$srcdir/../../sys/dev/filemon"
50do
51	for x in "/$OS" ""
52	do
53		filemon_h="$d$x/filemon.h"
54		test -s "$filemon_h" && break
55	done
56	test -s "$filemon_h" && break
57done
58test -s "${filemon_h:-/dev/null}" || filemon_h=no
59])
60dnl echo "Note: use_meta=$use_meta filemon_h=$filemon_h" >&6
61case "$use_meta" in
62yes)
63	case "$filemon_h" in
64	*.h) echo "Using: filemon=$filemon_h" >&6;;
65	esac
66	;;
67esac
68dnl
69dnl Check for OS problems
70dnl Solaris's signal.h only privides sigset_t etc if one of
71dnl _EXTENSIONS_ _POSIX_C_SOURCE or _XOPEN_SOURCE are defined.
72dnl The later two seem to cause more problems than they solve so if we
73dnl see _EXTENSIONS_ we use it.
74AC_USE_SYSTEM_EXTENSIONS
75dnl Checks for programs.
76AC_PROG_CC
77AC_PROG_GCC_TRADITIONAL
78AC_PROG_INSTALL
79dnl Executable suffix - normally empty; .exe on os2.
80AC_SUBST(ac_exe_suffix)dnl
81dnl
82dnl Hurd refuses to define PATH_MAX or MAXPATHLEN
83if test -x /usr/bin/getconf; then
84   bmake_path_max=`getconf PATH_MAX / 2> /dev/null`
85   # only a numeric response is useful
86   test ${bmake_path_max:-0} -gt 0 2> /dev/null || bmake_path_max=
87fi
88bmake_path_max=${bmake_path_max:-1024}
89if test $bmake_path_max -gt 1024; then
90   # this is all we expect
91   bmake_path_max=1024
92fi
93echo "Using: BMAKE_PATH_MAX=$bmake_path_max" >&6
94AC_SUBST(bmake_path_max)dnl
95dnl
96dnl AC_C_CROSS
97dnl
98
99dnl Checks for header files.
100AC_HEADER_STDC
101AC_HEADER_SYS_WAIT
102AC_HEADER_DIRENT
103dnl Keep this list sorted
104AC_CHECK_HEADERS( \
105	ar.h \
106	err.h \
107	fcntl.h \
108	limits.h \
109	paths.h \
110	poll.h \
111	ranlib.h \
112	string.h \
113	sys/mman.h \
114	sys/select.h \
115	sys/socket.h \
116	sys/sysctl.h \
117	sys/time.h \
118	sys/uio.h \
119	unistd.h \
120	utime.h \
121	)
122
123dnl Both *BSD and Linux have sys/cdefs.h, most do not.
124dnl If it is missing, we add -I${srcdir}/missing to CFLAGS
125dnl also if sys/cdefs.h does not have __RCSID we need to use ours
126dnl but we need to include the host's one too *sigh*
127AC_CHECK_HEADER(sys/cdefs.h,
128echo $ECHO_N "checking whether sys/cdefs.h is compatible... $ECHO_C" >&6
129AC_EGREP_CPP(yes,
130[#include <sys/cdefs.h>
131#ifdef __RCSID
132yes
133#endif
134],
135echo yes  >&6,
136echo no  >&6; CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd` -DNEED_HOST_CDEFS_H"),
137CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd`")
138
139dnl Checks for typedefs, structures, and compiler characteristics.
140AC_C___ATTRIBUTE__
141AC_C_BIGENDIAN
142AC_C_CONST
143AC_TYPE_OFF_T
144AC_TYPE_PID_T
145AC_TYPE_SIZE_T
146AC_DECL_SYS_SIGLIST
147AC_HEADER_TIME
148AC_STRUCT_TM
149
150dnl Checks for library functions.
151AC_TYPE_SIGNAL
152AC_FUNC_VFORK
153AC_FUNC_VPRINTF
154AC_FUNC_WAIT3
155dnl Keep this list sorted
156AC_CHECK_FUNCS( \
157	err \
158	errx \
159	getcwd \
160	getenv \
161	getopt \
162	getwd \
163	killpg \
164	mmap \
165	putenv \
166	select \
167	setenv \
168	setpgid \
169	setsid \
170	sigaction \
171	sigvec \
172	snprintf \
173	strerror \
174	strftime \
175	strsep \
176	strtod \
177	strtol \
178	sysctl \
179	unsetenv \
180	vsnprintf \
181	wait3 \
182	wait4 \
183	waitpid \
184	warn \
185	warnx \
186	)
187
188dnl functions which we may need to provide
189AC_REPLACE_FUNCS( \
190	realpath \
191	dirname \
192	stresep \
193	strlcpy \
194	)
195
196AC_CHECK_LIB([util], [emalloc],
197    [ AC_CHECK_LIB([util], [erealloc],
198      [ AC_CHECK_LIB([util], [estrdup],
199        [ AC_CHECK_LIB([util], [estrndup],
200	  [ LIBS="$LIBS -lutil"
201	    CPPFLAGS="$CPPFLAGS -DUSE_EMALLOC" ])])])])
202
203dnl
204dnl Structures
205dnl
206AC_HEADER_STAT
207AC_STRUCT_ST_RDEV
208dnl
209echo "checking if compiler supports __func__" >&6
210AC_LANG(C)
211AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[[const char *func = __func__;]])],,
212	AC_DEFINE(__func__, __FUNCTION__, C99 function name))
213dnl
214dnl we want this for unit-tests/Makefile
215echo $ECHO_N "checking if diff -u works... $ECHO_C" >&6
216if diff -u /dev/null /dev/null > /dev/null 2>&1; then
217   diff_u=-u
218   echo yes >&6
219else
220   diff_u=
221   echo no >&6
222fi
223dnl
224dnl AC_* don't quite cut it.
225dnl
226echo "checking for MACHINE & MACHINE_ARCH..." >&6
227cat > conftest.$ac_ext <<EOF
228#include "confdefs.h"
229#include <sys/param.h>
230#ifdef MACHINE
231machine=MACHINE
232#endif
233#ifdef MACHINE_ARCH
234machine_arch=MACHINE_ARCH
235#endif
236EOF
237
238default_machine=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 |
239	egrep machine= | tr -d ' "'`
240rm -rf conftest*
241if test "$default_machine"; then
242	eval "$default_machine"
243fi
244machine=${machine:-`$srcdir/machine.sh`}
245machine_arch=${machine_arch:-`$srcdir/machine.sh arch`}
246echo "defaults: MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
247dnl
248dnl now allow overrides
249dnl
250AC_ARG_WITH(machine,
251[  --with-machine=MACHINE  explicitly set MACHINE],
252[case "${withval}" in
253yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE) ;;
254no)    ;;
255generic) machine=`$srcdir/machine.sh`;;
256*)     machine=$with_machine;;
257esac])
258force_machine=
259AC_ARG_WITH(force_machine,
260[  --with-force-machine=MACHINE  set FORCE_MACHINE],
261[case "${withval}" in
262yes)   force_machine=FORCE_;;
263no)    ;;
264*)     force_machine=FORCE_; machine=$with_force_machine;;
265esac])
266dnl
267force_machine_arch=
268AC_ARG_WITH(force_machine_arch,
269[  --with-force-machine-arch=MACHINE  set FORCE_MACHINE_ARCH],
270[case "${withval}" in
271yes)   force_machine_arch=FORCE_;;
272no)    ;;
273*)     force_machine_arch=FORCE_; machine_arch=$with_force_machine;;
274esac])
275dnl
276AC_ARG_WITH(machine_arch,
277[  --with-machine_arch=MACHINE_ARCH  explicitly set MACHINE_ARCH],
278[case "${withval}" in
279yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE_ARCH) ;;
280no)    ;;
281*)     machine_arch=$with_machine_arch;;
282esac])
283dnl
284dnl Tell them what we ended up with
285dnl
286echo "Using: ${force_machine}MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
287dnl
288dnl Allow folk to control _PATH_DEFSYSPATH
289dnl
290default_sys_path=\${prefix}/share/mk
291AC_ARG_WITH(default-sys-path,
292[  --with-default-sys-path=PATH:DIR:LIST  use an explicit _PATH_DEFSYSPATH
293	MAKESYSPATH is a ':' separated list of directories
294	that bmake will search for system .mk files.
295	_PATH_DEFSYSPATH is its default value.],
296[case "${withval}" in
297yes)	AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_DEFSYSPATH) ;;
298no)	;;
299*)	default_sys_path="$with_default_sys_path"
300	;;
301esac])
302dnl
303dnl Some folk don't like this one
304dnl
305AC_ARG_WITH(path-objdirprefix,
306[  --with-path-objdirprefix=PATH  override _PATH_OBJDIRPREFIX],
307[case "${withval}" in
308yes)   AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_OBJDIRPREFIX) ;;
309no)    CPPFLAGS="$CPPFLAGS -DNO_PATH_OBJDIRPREFIX" ;;
310*)     CPPFLAGS="$CPPFLAGS \"-D_PATH_OBJDIRPREFIX=\\\"$with_path-objdir\\\"\"" ;;
311esac])
312dnl
313dnl And this can be handy to do with out.
314dnl
315AC_ARG_ENABLE(pwd-override,
316[  --disable-pwd-override  disable \$PWD overriding getcwd()],
317[case "${enableval}" in
318yes)   ;;
319no)    CPPFLAGS="$CPPFLAGS -DNO_PWD_OVERRIDE" ;;
320*)     AC_MSG_ERROR(bad value ${enableval} given for pwd-override option) ;;
321esac])
322dnl
323dnl Just for grins
324dnl
325AC_ARG_ENABLE(check-make-chdir,
326[  --disable-check-make-chdir disable make trying to guess
327	when it should automatically cd \${.CURDIR}],
328[case "${enableval}" in
329yes)   ;;
330no)    CPPFLAGS="$CPPFLAGS -DNO_CHECK_MAKE_CHDIR" ;;
331*)     AC_MSG_ERROR(bad value ${enableval} given for check-make-chdir option) ;;
332esac])
333dnl
334dnl On non-BSD systems, bootstrap won't work without mk
335dnl
336AC_ARG_WITH(mksrc,
337[  --with-mksrc=PATH tell makefile.boot where to find mk src],
338[case "${withval}" in
339""|yes|no) ;;
340*) test -s $withval/install-mk && mksrc=$withval ||
341AC_MSG_ERROR(bad value ${withval} given for mksrc cannot find install-mk)
342;;
343esac
344])
345dnl
346dnl Now make sure we have a value
347dnl
348srcdir=`cd $srcdir && pwd`
349for mksrc in $mksrc $srcdir/mk $srcdir/../mk mk
350do
351	test -s $mksrc/install-mk || continue
352	mksrc=`cd $mksrc && pwd`
353	break
354done
355mksrc=`echo $mksrc | sed "s,$srcdir,\\\${srcdir},"`
356echo "Using: MKSRC=$mksrc" 1>&6
357dnl On some systems we want a different default shell by default
358if test -x /usr/xpg4/bin/sh; then
359        defshell_path=${defshell_path:-/usr/xpg4/bin/sh}
360fi
361if test -n "$defshell_path"; then
362	echo "Using: SHELL=$defshell_path"  >&6
363	AC_DEFINE_UNQUOTED(DEFSHELL_CUSTOM, "$defshell_path", Path of default shell)
364fi
365if test -n "$DEFSHELL_INDEX"; then
366       AC_DEFINE_UNQUOTED(DEFSHELL_INDEX, $DEFSHELL_INDEX, Shell spec to use by default)
367fi
368dnl
369AC_SUBST(machine)
370AC_SUBST(force_machine)
371AC_SUBST(machine_arch)
372AC_SUBST(mksrc)
373AC_SUBST(default_sys_path)
374AC_SUBST(INSTALL)
375AC_SUBST(GCC)
376AC_SUBST(diff_u)
377AC_SUBST(use_meta)
378AC_SUBST(filemon_h)
379AC_OUTPUT(makefile Makefile.config make-bootstrap.sh unit-tests/Makefile)
380
381cat <<EOF
382
383You can now run
384
385	sh ./make-bootstrap.sh
386
387to produce a fully functional bmake.
388
389EOF
390