xref: /freebsd/contrib/bmake/configure.in (revision 1f4bcc459a76b7aa664f3fd557684cd0ba6da352) 
1dnl
2dnl RCSid:
3dnl	$Id: configure.in,v 1.56 2015/10/25 05:20:48 sjg Exp $
4dnl
5dnl Process this file with autoconf to produce a configure script
6dnl
7AC_PREREQ(2.50)
8AC_INIT([bmake], [20151022], [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(sys/param.h)
105dnl On BSDi at least we really need sys/param.h for sys/sysctl.h
106AC_CHECK_HEADERS([sys/sysctl.h], [], [],
107[#ifdef HAVE_SYS_PARAM_H
108# include <sys/param.h>
109# endif
110])
111
112AC_CHECK_HEADERS( \
113	ar.h \
114	err.h \
115	fcntl.h \
116	libgen.h \
117	limits.h \
118	paths.h \
119	poll.h \
120	ranlib.h \
121	string.h \
122	sys/mman.h \
123	sys/select.h \
124	sys/socket.h \
125	sys/time.h \
126	sys/uio.h \
127	unistd.h \
128	utime.h \
129	)
130
131dnl Both *BSD and Linux have sys/cdefs.h, most do not.
132dnl If it is missing, we add -I${srcdir}/missing to CFLAGS
133dnl also if sys/cdefs.h does not have __RCSID we need to use ours
134dnl but we need to include the host's one too *sigh*
135AC_CHECK_HEADER(sys/cdefs.h,
136echo $ECHO_N "checking whether sys/cdefs.h is compatible... $ECHO_C" >&6
137AC_EGREP_CPP(yes,
138[#include <sys/cdefs.h>
139#ifdef __RCSID
140yes
141#endif
142],
143echo yes  >&6,
144echo no  >&6; CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd` -DNEED_HOST_CDEFS_H"),
145CPPFLAGS="${CPPFLAGS} -I`cd ${srcdir}/missing && pwd`")
146
147dnl Checks for typedefs, structures, and compiler characteristics.
148AC_C___ATTRIBUTE__
149AC_C_BIGENDIAN
150AC_C_CONST
151AC_TYPE_OFF_T
152AC_TYPE_PID_T
153AC_TYPE_SIZE_T
154AC_TYPE_UINT32_T
155AC_DECL_SYS_SIGLIST
156AC_HEADER_TIME
157AC_STRUCT_TM
158
159dnl Checks for library functions.
160AC_TYPE_SIGNAL
161AC_FUNC_VFORK
162AC_FUNC_VPRINTF
163AC_FUNC_WAIT3
164dnl Keep this list sorted
165AC_CHECK_FUNCS( \
166	err \
167	errx \
168	getcwd \
169	getenv \
170	getopt \
171	getwd \
172	killpg \
173	mmap \
174	putenv \
175	select \
176	setenv \
177	setpgid \
178	setsid \
179	sigaction \
180	sigvec \
181	snprintf \
182	strerror \
183	strftime \
184	strsep \
185	strtod \
186	strtol \
187	sysctl \
188	unsetenv \
189	vsnprintf \
190	wait3 \
191	wait4 \
192	waitpid \
193	warn \
194	warnx \
195	)
196
197dnl functions which we may need to provide
198AC_REPLACE_FUNCS( \
199	realpath \
200	dirname \
201	stresep \
202	strlcpy \
203	)
204
205AC_CHECK_LIB([util], [emalloc],
206    [ AC_CHECK_LIB([util], [erealloc],
207      [ AC_CHECK_LIB([util], [estrdup],
208        [ AC_CHECK_LIB([util], [estrndup],
209	  [ LIBS="$LIBS -lutil"
210	    CPPFLAGS="$CPPFLAGS -DUSE_EMALLOC" ])])])])
211
212dnl
213dnl Structures
214dnl
215AC_HEADER_STAT
216AC_STRUCT_ST_RDEV
217dnl
218echo "checking if compiler supports __func__" >&6
219AC_LANG(C)
220AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[[const char *func = __func__;]])],,
221	AC_DEFINE(__func__, __FUNCTION__, C99 function name))
222dnl
223dnl we want this for unit-tests/Makefile
224echo $ECHO_N "checking if diff -u works... $ECHO_C" >&6
225if diff -u /dev/null /dev/null > /dev/null 2>&1; then
226   diff_u=-u
227   echo yes >&6
228else
229   diff_u=
230   echo no >&6
231fi
232dnl
233dnl AC_* don't quite cut it.
234dnl
235echo "checking for MACHINE & MACHINE_ARCH..." >&6
236cat > conftest.$ac_ext <<EOF
237#include "confdefs.h"
238#include <sys/param.h>
239#ifdef MACHINE
240machine=MACHINE
241#endif
242#ifdef MACHINE_ARCH
243machine_arch=MACHINE_ARCH
244#endif
245EOF
246
247default_machine=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 |
248	egrep machine= | tr -d ' "'`
249rm -rf conftest*
250if test "$default_machine"; then
251	eval "$default_machine"
252fi
253machine=${machine:-`$srcdir/machine.sh`}
254machine_arch=${machine_arch:-`$srcdir/machine.sh arch`}
255echo "defaults: MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
256dnl
257dnl now allow overrides
258dnl
259AC_ARG_WITH(machine,
260[  --with-machine=MACHINE  explicitly set MACHINE],
261[case "${withval}" in
262yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE) ;;
263no)    ;;
264generic) machine=`$srcdir/machine.sh`;;
265*)     machine=$with_machine;;
266esac])
267force_machine=
268AC_ARG_WITH(force_machine,
269[  --with-force-machine=MACHINE  set FORCE_MACHINE],
270[case "${withval}" in
271yes)   force_machine=FORCE_;;
272no)    ;;
273*)     force_machine=FORCE_; machine=$with_force_machine;;
274esac])
275dnl
276force_machine_arch=
277AC_ARG_WITH(force_machine_arch,
278[  --with-force-machine-arch=MACHINE  set FORCE_MACHINE_ARCH],
279[case "${withval}" in
280yes)   force_machine_arch=FORCE_;;
281no)    ;;
282*)     force_machine_arch=FORCE_; machine_arch=$with_force_machine;;
283esac])
284dnl
285AC_ARG_WITH(machine_arch,
286[  --with-machine_arch=MACHINE_ARCH  explicitly set MACHINE_ARCH],
287[case "${withval}" in
288yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE_ARCH) ;;
289no)    ;;
290*)     machine_arch=$with_machine_arch;;
291esac])
292dnl
293dnl Tell them what we ended up with
294dnl
295echo "Using: ${force_machine}MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
296dnl
297dnl Allow folk to control _PATH_DEFSYSPATH
298dnl
299default_sys_path=\${prefix}/share/mk
300AC_ARG_WITH(default-sys-path,
301[  --with-default-sys-path=PATH:DIR:LIST  use an explicit _PATH_DEFSYSPATH
302	MAKESYSPATH is a ':' separated list of directories
303	that bmake will search for system .mk files.
304	_PATH_DEFSYSPATH is its default value.],
305[case "${withval}" in
306yes)	AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_DEFSYSPATH) ;;
307no)	;;
308*)	default_sys_path="$with_default_sys_path"
309	;;
310esac])
311dnl
312dnl Some folk don't like this one
313dnl
314AC_ARG_WITH(path-objdirprefix,
315[  --with-path-objdirprefix=PATH  override _PATH_OBJDIRPREFIX],
316[case "${withval}" in
317yes)   AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_OBJDIRPREFIX) ;;
318no)    CPPFLAGS="$CPPFLAGS -DNO_PATH_OBJDIRPREFIX" ;;
319*)     CPPFLAGS="$CPPFLAGS \"-D_PATH_OBJDIRPREFIX=\\\"$with_path-objdir\\\"\"" ;;
320esac])
321dnl
322dnl And this can be handy to do with out.
323dnl
324AC_ARG_ENABLE(pwd-override,
325[  --disable-pwd-override  disable \$PWD overriding getcwd()],
326[case "${enableval}" in
327yes)   ;;
328no)    CPPFLAGS="$CPPFLAGS -DNO_PWD_OVERRIDE" ;;
329*)     AC_MSG_ERROR(bad value ${enableval} given for pwd-override option) ;;
330esac])
331dnl
332dnl Just for grins
333dnl
334AC_ARG_ENABLE(check-make-chdir,
335[  --disable-check-make-chdir disable make trying to guess
336	when it should automatically cd \${.CURDIR}],
337[case "${enableval}" in
338yes)   ;;
339no)    CPPFLAGS="$CPPFLAGS -DNO_CHECK_MAKE_CHDIR" ;;
340*)     AC_MSG_ERROR(bad value ${enableval} given for check-make-chdir option) ;;
341esac])
342dnl
343dnl On non-BSD systems, bootstrap won't work without mk
344dnl
345AC_ARG_WITH(mksrc,
346[  --with-mksrc=PATH tell makefile.boot where to find mk src],
347[case "${withval}" in
348""|yes|no) ;;
349*) test -s $withval/install-mk && mksrc=$withval ||
350AC_MSG_ERROR(bad value ${withval} given for mksrc cannot find install-mk)
351;;
352esac
353])
354dnl
355dnl Now make sure we have a value
356dnl
357srcdir=`cd $srcdir && pwd`
358for mksrc in $mksrc $srcdir/mk $srcdir/../mk mk
359do
360	test -s $mksrc/install-mk || continue
361	mksrc=`cd $mksrc && pwd`
362	break
363done
364mksrc=`echo $mksrc | sed "s,$srcdir,\\\${srcdir},"`
365echo "Using: MKSRC=$mksrc" 1>&6
366dnl On some systems we want a different default shell by default
367if test -x /usr/xpg4/bin/sh; then
368        defshell_path=${defshell_path:-/usr/xpg4/bin/sh}
369fi
370if test -n "$defshell_path"; then
371	echo "Using: SHELL=$defshell_path"  >&6
372	AC_DEFINE_UNQUOTED(DEFSHELL_CUSTOM, "$defshell_path", Path of default shell)
373fi
374if test -n "$DEFSHELL_INDEX"; then
375       AC_DEFINE_UNQUOTED(DEFSHELL_INDEX, $DEFSHELL_INDEX, Shell spec to use by default)
376fi
377dnl
378AC_SUBST(machine)
379AC_SUBST(force_machine)
380AC_SUBST(machine_arch)
381AC_SUBST(mksrc)
382AC_SUBST(default_sys_path)
383AC_SUBST(INSTALL)
384AC_SUBST(GCC)
385AC_SUBST(diff_u)
386AC_SUBST(use_meta)
387AC_SUBST(filemon_h)
388AC_OUTPUT(makefile Makefile.config make-bootstrap.sh unit-tests/Makefile)
389
390cat <<EOF
391
392You can now run
393
394	sh ./make-bootstrap.sh
395
396to produce a fully functional bmake.
397
398EOF
399