xref: /freebsd/contrib/bmake/configure.in (revision cc16dea626cf2fc80cde667ac4798065108e596c) 
1dnl
2dnl RCSid:
3dnl	$Id: configure.in,v 1.49 2013/07/06 18:25:19 sjg Exp $
4dnl
5dnl Process this file with autoconf to produce a configure script
6dnl
7AC_INIT([bmake], [20130706], [sjg@NetBSD.org])
8AC_CONFIG_HEADER(config.h)
9
10dnl make srcdir absolute
11case "$srcdir" in
12/*) ;;
13*) srcdir=`cd $srcdir && pwd`;;
14esac
15
16dnl
17AC_ARG_WITH(defshell,
18[  --with-defshell=SHELL  use SHELL by default - must be sh compatible, use sh or ksh to pick the internal definitions],
19[case "${withval}" in
20yes)   AC_MSG_ERROR(bad value ${withval} given for bmake DEFSHELL) ;;
21no)    ;;
22*)     case "$with_defshell" in
23       sh)  DEFSHELL_INDEX=DEFSHELL_INDEX_SH;;	# it's the default anyway
24       ksh) DEFSHELL_INDEX=DEFSHELL_INDEX_KSH;;
25       csh) DEFSHELL_INDEX=DEFSHELL_INDEX_CSH;;	# kidding right?
26       *)   defshell_path=$with_defshell;;	# better be sh compatible!
27       esac
28       ;;
29       esac])
30dnl
31use_meta=yes
32AC_ARG_WITH(meta,
33[ --without-meta dissable use of meta-mode],
34[case "${withval}" in
35yes|no) use_meta=${withval};;
36*) AC_MSG_ERROR(bad value ${withval} given for meta) ;;
37esac])
38dnl
39AC_ARG_WITH(filemon,
40[ --with-filemon=path/filemon.h indicate path to filemon.h for meta-mode],
41[ case "/${withval}" in
42/no|*/filemon.h) filemon_h="${withval}";;
43*/filemon*) filemon_h="${withval}/filemon.h";;
44*) AC_MSG_ERROR(bad value ${withval} given for filemon) ;;
45esac],
46[
47OS=`uname -s`
48for d in "/usr/include/dev/filemon" "$prefix/include/dev/filemon" "$srcdir/filemon" "$srcdir/../filemon" "$srcdir/../../sys/dev/filemon"
49do
50	for x in "/$OS" ""
51	do
52		filemon_h="$d$x/filemon.h"
53		test -s "$filemon_h" && break
54	done
55	test -s "$filemon_h" && break
56done
57test -s "${filemon_h:-/dev/null}" || filemon_h=no
58])
59dnl echo "Note: use_meta=$use_meta filemon_h=$filemon_h" >&6
60case "$use_meta" in
61yes)
62	case "$filemon_h" in
63	*.h) echo "Using: filemon=$filemon_h" >&6;;
64	esac
65	;;
66esac
67dnl
68dnl Check for OS problems
69dnl Solaris's signal.h only privides sigset_t etc if one of
70dnl _EXTENSIONS_ _POSIX_C_SOURCE or _XOPEN_SOURCE are defined.
71dnl The later two seem to cause more problems than they solve so if we
72dnl see _EXTENSIONS_ we use it.
73AC_USE_SYSTEM_EXTENSIONS
74dnl Checks for programs.
75AC_PROG_CC
76AC_PROG_GCC_TRADITIONAL
77AC_PROG_INSTALL
78dnl Executable suffix - normally empty; .exe on os2.
79AC_SUBST(ac_exe_suffix)dnl
80
81dnl
82dnl AC_C_CROSS
83dnl
84
85dnl Checks for header files.
86AC_HEADER_STDC
87AC_HEADER_SYS_WAIT
88AC_HEADER_DIRENT
89dnl Keep this list sorted
90AC_CHECK_HEADERS( \
91	ar.h \
92	err.h \
93	fcntl.h \
94	paths.h \
95	poll.h \
96	ranlib.h \
97	string.h \
98	sys/mman.h \
99	sys/select.h \
100	sys/socket.h \
101	sys/time.h \
102	sys/uio.h \
103	unistd.h \
104	utime.h \
105	)
106
107dnl Both *BSD and Linux have sys/cdefs.h, most do not.
108dnl If it is missing, we add -I${srcdir}/missing to CFLAGS
109dnl also if sys/cdefs.h does not have __RCSID we need to use ours
110dnl but we need to include the host's one too *sigh*
111AC_CHECK_HEADER(sys/cdefs.h,
112echo $ECHO_N "checking whether sys/cdefs.h is compatible... $ECHO_C" >&6
113AC_EGREP_CPP(yes,
114[#include <sys/cdefs.h>
115#ifdef __RCSID
116yes
117#endif
118],
119echo yes  >&6,
120echo no  >&6; CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd` -DNEED_HOST_CDEFS_H"),
121CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd`")
122
123dnl Checks for typedefs, structures, and compiler characteristics.
124AC_C___ATTRIBUTE__
125AC_C_BIGENDIAN
126AC_C_CONST
127AC_TYPE_OFF_T
128AC_TYPE_PID_T
129AC_TYPE_SIZE_T
130AC_DECL_SYS_SIGLIST
131AC_HEADER_TIME
132AC_STRUCT_TM
133
134dnl Checks for library functions.
135AC_TYPE_SIGNAL
136AC_FUNC_VFORK
137AC_FUNC_VPRINTF
138AC_FUNC_WAIT3
139dnl Keep this list sorted
140AC_CHECK_FUNCS( \
141	err \
142	errx \
143	getcwd \
144	getenv \
145	getopt \
146	getwd \
147	killpg \
148	mmap \
149	putenv \
150	select \
151	setenv \
152	setpgid \
153	setsid \
154	sigaction \
155	sigvec \
156	snprintf \
157	strerror \
158	strftime \
159	strsep \
160	strtod \
161	strtol \
162	unsetenv \
163	vsnprintf \
164	wait3 \
165	wait4 \
166	waitpid \
167	warn \
168	warnx \
169	)
170
171dnl functions which we may need to provide
172AC_REPLACE_FUNCS( \
173	realpath \
174	dirname \
175	stresep \
176	strlcpy \
177	)
178
179AC_CHECK_LIB([util], [emalloc],
180    [ AC_CHECK_LIB([util], [erealloc],
181      [ AC_CHECK_LIB([util], [estrdup],
182        [ AC_CHECK_LIB([util], [estrndup],
183	  [ LIBS="$LIBS -lutil"
184	    CPPFLAGS="$CPPFLAGS -DUSE_EMALLOC" ])])])])
185
186dnl
187dnl Structures
188dnl
189AC_HEADER_STAT
190AC_STRUCT_ST_RDEV
191dnl
192dnl we want this for unit-tests/Makefile
193echo $ECHO_N "checking if diff -u works... $ECHO_C" >&6
194if diff -u /dev/null /dev/null > /dev/null 2>&1; then
195   diff_u=-u
196   echo yes >&6
197else
198   diff_u=
199   echo no >&6
200fi
201dnl
202dnl AC_* don't quite cut it.
203dnl
204echo "checking for MACHINE & MACHINE_ARCH..." >&6
205cat > conftest.$ac_ext <<EOF
206#include "confdefs.h"
207#include <sys/param.h>
208#ifdef MACHINE
209machine=MACHINE
210#endif
211#ifdef MACHINE_ARCH
212machine_arch=MACHINE_ARCH
213#endif
214EOF
215
216default_machine=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 |
217	egrep machine= | tr -d ' "'`
218rm -rf conftest*
219if test "$default_machine"; then
220	eval "$default_machine"
221fi
222machine=${machine:-`$srcdir/machine.sh`}
223machine_arch=${machine_arch:-`$srcdir/machine.sh arch`}
224echo "defaults: MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
225dnl
226dnl now allow overrides
227dnl
228AC_ARG_WITH(machine,
229[  --with-machine=MACHINE  explicitly set MACHINE],
230[case "${withval}" in
231yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE) ;;
232no)    ;;
233generic) machine=`$srcdir/machine.sh`;;
234*)     machine=$with_machine;;
235esac])
236force_machine=
237AC_ARG_WITH(force_machine,
238[  --with-force-machine=MACHINE  set FORCE_MACHINE],
239[case "${withval}" in
240yes)   force_machine=FORCE_;;
241no)    ;;
242*)     force_machine=FORCE_; machine=$with_force_machine;;
243esac])
244dnl
245force_machine_arch=
246AC_ARG_WITH(force_machine_arch,
247[  --with-force-machine-arch=MACHINE  set FORCE_MACHINE_ARCH],
248[case "${withval}" in
249yes)   force_machine_arch=FORCE_;;
250no)    ;;
251*)     force_machine_arch=FORCE_; machine_arch=$with_force_machine;;
252esac])
253dnl
254AC_ARG_WITH(machine_arch,
255[  --with-machine_arch=MACHINE_ARCH  explicitly set MACHINE_ARCH],
256[case "${withval}" in
257yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE_ARCH) ;;
258no)    ;;
259*)     machine_arch=$with_machine_arch;;
260esac])
261dnl
262dnl Tell them what we ended up with
263dnl
264echo "Using: ${force_machine}MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
265dnl
266dnl Allow folk to control _PATH_DEFSYSPATH
267dnl
268default_sys_path=\${prefix}/share/mk
269AC_ARG_WITH(default-sys-path,
270[  --with-default-sys-path=PATH:DIR:LIST  use an explicit _PATH_DEFSYSPATH
271	MAKESYSPATH is a ':' separated list of directories
272	that bmake will search for system .mk files.
273	_PATH_DEFSYSPATH is its default value.],
274[case "${withval}" in
275yes)	AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_DEFSYSPATH) ;;
276no)	;;
277*)	default_sys_path="$with_default_sys_path"
278	;;
279esac])
280dnl
281dnl Some folk don't like this one
282dnl
283AC_ARG_WITH(path-objdirprefix,
284[  --with-path-objdirprefix=PATH  override _PATH_OBJDIRPREFIX],
285[case "${withval}" in
286yes)   AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_OBJDIRPREFIX) ;;
287no)    CPPFLAGS="$CPPFLAGS -DNO_PATH_OBJDIRPREFIX" ;;
288*)     CPPFLAGS="$CPPFLAGS \"-D_PATH_OBJDIRPREFIX=\\\"$with_path-objdir\\\"\"" ;;
289esac])
290dnl
291dnl And this can be handy to do with out.
292dnl
293AC_ARG_ENABLE(pwd-override,
294[  --disable-pwd-override  disable \$PWD overriding getcwd()],
295[case "${enableval}" in
296yes)   ;;
297no)    CPPFLAGS="$CPPFLAGS -DNO_PWD_OVERRIDE" ;;
298*)     AC_MSG_ERROR(bad value ${enableval} given for pwd-override option) ;;
299esac])
300dnl
301dnl Just for grins
302dnl
303AC_ARG_ENABLE(check-make-chdir,
304[  --disable-check-make-chdir disable make trying to guess
305	when it should automatically cd \${.CURDIR}],
306[case "${enableval}" in
307yes)   ;;
308no)    CPPFLAGS="$CPPFLAGS -DNO_CHECK_MAKE_CHDIR" ;;
309*)     AC_MSG_ERROR(bad value ${enableval} given for check-make-chdir option) ;;
310esac])
311dnl
312dnl On non-BSD systems, bootstrap won't work without mk
313dnl
314AC_ARG_WITH(mksrc,
315[  --with-mksrc=PATH tell makefile.boot where to find mk src],
316[case "${withval}" in
317""|yes|no) ;;
318*) test -s $withval/install-mk && mksrc=$withval ||
319AC_MSG_ERROR(bad value ${withval} given for mksrc cannot find install-mk)
320;;
321esac
322])
323dnl
324dnl Now make sure we have a value
325dnl
326srcdir=`cd $srcdir && pwd`
327for mksrc in $mksrc $srcdir/mk $srcdir/../mk mk
328do
329	test -s $mksrc/install-mk || continue
330	mksrc=`cd $mksrc && pwd`
331	break
332done
333mksrc=`echo $mksrc | sed "s,$srcdir,\\\${srcdir},"`
334echo "Using: MKSRC=$mksrc" 1>&6
335dnl On some systems we want a different default shell by default
336if test -x /usr/xpg4/bin/sh; then
337        defshell_path=${defshell_path:-/usr/xpg4/bin/sh}
338fi
339if test -n "$defshell_path"; then
340	echo "Using: SHELL=$defshell_path"  >&6
341	AC_DEFINE_UNQUOTED(DEFSHELL_CUSTOM, "$defshell_path", Path of default shell)
342fi
343if test -n "$DEFSHELL_INDEX"; then
344       AC_DEFINE_UNQUOTED(DEFSHELL_INDEX, $DEFSHELL_INDEX, Shell spec to use by default)
345fi
346dnl
347AC_SUBST(machine)
348AC_SUBST(force_machine)
349AC_SUBST(machine_arch)
350AC_SUBST(mksrc)
351AC_SUBST(default_sys_path)
352AC_SUBST(INSTALL)
353AC_SUBST(GCC)
354AC_SUBST(diff_u)
355AC_SUBST(use_meta)
356AC_SUBST(filemon_h)
357AC_OUTPUT(makefile Makefile.config make-bootstrap.sh unit-tests/Makefile)
358
359cat <<EOF
360
361You can now run
362
363	sh ./make-bootstrap.sh
364
365to produce a fully functional bmake.
366
367EOF
368