xref: /dragonfly/contrib/bmake/configure.in (revision ffe53622) 
1dnl
2dnl RCSid:
3dnl	$Id: configure.in,v 1.57 2016/06/07 00:49:44 sjg Exp $
4dnl
5dnl Process this file with autoconf to produce a configure script
6dnl
7AC_PREREQ(2.50)
8AC_INIT([bmake], [20160606], [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 ${srcdir}/missing && pwd`")
146
147dnl Checks for typedefs, structures, and compiler characteristics.
148AC_C___ATTRIBUTE__
149AC_C_BIGENDIAN
150AC_C_CONST
151AC_TYPE_MODE_T
152AC_TYPE_OFF_T
153AC_TYPE_PID_T
154AC_TYPE_SIZE_T
155AC_TYPE_UINT32_T
156AC_DECL_SYS_SIGLIST
157AC_HEADER_TIME
158AC_STRUCT_TM
159
160dnl Checks for library functions.
161AC_TYPE_SIGNAL
162AC_FUNC_VFORK
163AC_FUNC_VPRINTF
164AC_FUNC_WAIT3
165dnl Keep this list sorted
166AC_CHECK_FUNCS( \
167	err \
168	errx \
169	getcwd \
170	getenv \
171	getopt \
172	getwd \
173	killpg \
174	mmap \
175	putenv \
176	select \
177	setenv \
178	setpgid \
179	setsid \
180	sigaction \
181	sigvec \
182	snprintf \
183	strerror \
184	strftime \
185	strsep \
186	strtod \
187	strtol \
188	sysctl \
189	unsetenv \
190	vsnprintf \
191	wait3 \
192	wait4 \
193	waitpid \
194	warn \
195	warnx \
196	)
197
198dnl functions which we may need to provide
199AC_REPLACE_FUNCS( \
200	realpath \
201	dirname \
202	stresep \
203	strlcpy \
204	)
205
206AC_CHECK_LIB([util], [emalloc],
207    [ AC_CHECK_LIB([util], [erealloc],
208      [ AC_CHECK_LIB([util], [estrdup],
209        [ AC_CHECK_LIB([util], [estrndup],
210	  [ LIBS="$LIBS -lutil"
211	    CPPFLAGS="$CPPFLAGS -DUSE_EMALLOC" ])])])])
212
213dnl
214dnl Structures
215dnl
216AC_HEADER_STAT
217AC_STRUCT_ST_RDEV
218dnl
219echo "checking if compiler supports __func__" >&6
220AC_LANG(C)
221AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[[const char *func = __func__;]])],,
222	AC_DEFINE(__func__, __FUNCTION__, C99 function name))
223dnl
224dnl we want this for unit-tests/Makefile
225echo $ECHO_N "checking if diff -u works... $ECHO_C" >&6
226if diff -u /dev/null /dev/null > /dev/null 2>&1; then
227   diff_u=-u
228   echo yes >&6
229else
230   diff_u=
231   echo no >&6
232fi
233dnl
234dnl AC_* don't quite cut it.
235dnl
236echo "checking for MACHINE & MACHINE_ARCH..." >&6
237cat > conftest.$ac_ext <<EOF
238#include "confdefs.h"
239#include <sys/param.h>
240#ifdef MACHINE
241machine=MACHINE
242#endif
243#ifdef MACHINE_ARCH
244machine_arch=MACHINE_ARCH
245#endif
246EOF
247
248default_machine=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 |
249	egrep machine= | tr -d ' "'`
250rm -rf conftest*
251if test "$default_machine"; then
252	eval "$default_machine"
253fi
254machine=${machine:-`$srcdir/machine.sh`}
255machine_arch=${machine_arch:-`$srcdir/machine.sh arch`}
256echo "defaults: MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
257dnl
258dnl now allow overrides
259dnl
260AC_ARG_WITH(machine,
261[  --with-machine=MACHINE  explicitly set MACHINE],
262[case "${withval}" in
263yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE) ;;
264no)    ;;
265generic) machine=`$srcdir/machine.sh`;;
266*)     machine=$with_machine;;
267esac])
268force_machine=
269AC_ARG_WITH(force_machine,
270[  --with-force-machine=MACHINE  set FORCE_MACHINE],
271[case "${withval}" in
272yes)   force_machine=FORCE_;;
273no)    ;;
274*)     force_machine=FORCE_; machine=$with_force_machine;;
275esac])
276dnl
277force_machine_arch=
278AC_ARG_WITH(force_machine_arch,
279[  --with-force-machine-arch=MACHINE  set FORCE_MACHINE_ARCH],
280[case "${withval}" in
281yes)   force_machine_arch=FORCE_;;
282no)    ;;
283*)     force_machine_arch=FORCE_; machine_arch=$with_force_machine;;
284esac])
285dnl
286AC_ARG_WITH(machine_arch,
287[  --with-machine_arch=MACHINE_ARCH  explicitly set MACHINE_ARCH],
288[case "${withval}" in
289yes)   AC_MSG_ERROR(bad value ${withval} given for bmake MACHINE_ARCH) ;;
290no)    ;;
291*)     machine_arch=$with_machine_arch;;
292esac])
293dnl
294dnl Tell them what we ended up with
295dnl
296echo "Using: ${force_machine}MACHINE=$machine, MACHINE_ARCH=$machine_arch" 1>&6
297dnl
298dnl Allow folk to control _PATH_DEFSYSPATH
299dnl
300default_sys_path=\${prefix}/share/mk
301AC_ARG_WITH(default-sys-path,
302[  --with-default-sys-path=PATH:DIR:LIST  use an explicit _PATH_DEFSYSPATH
303	MAKESYSPATH is a ':' separated list of directories
304	that bmake will search for system .mk files.
305	_PATH_DEFSYSPATH is its default value.],
306[case "${withval}" in
307yes)	AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_DEFSYSPATH) ;;
308no)	;;
309*)	default_sys_path="$with_default_sys_path"
310	;;
311esac])
312dnl
313dnl Some folk don't like this one
314dnl
315AC_ARG_WITH(path-objdirprefix,
316[  --with-path-objdirprefix=PATH  override _PATH_OBJDIRPREFIX],
317[case "${withval}" in
318yes)   AC_MSG_ERROR(bad value ${withval} given for bmake _PATH_OBJDIRPREFIX) ;;
319no)    CPPFLAGS="$CPPFLAGS -DNO_PATH_OBJDIRPREFIX" ;;
320*)     CPPFLAGS="$CPPFLAGS \"-D_PATH_OBJDIRPREFIX=\\\"$with_path-objdir\\\"\"" ;;
321esac])
322dnl
323dnl And this can be handy to do with out.
324dnl
325AC_ARG_ENABLE(pwd-override,
326[  --disable-pwd-override  disable \$PWD overriding getcwd()],
327[case "${enableval}" in
328yes)   ;;
329no)    CPPFLAGS="$CPPFLAGS -DNO_PWD_OVERRIDE" ;;
330*)     AC_MSG_ERROR(bad value ${enableval} given for pwd-override option) ;;
331esac])
332dnl
333dnl Just for grins
334dnl
335AC_ARG_ENABLE(check-make-chdir,
336[  --disable-check-make-chdir disable make trying to guess
337	when it should automatically cd \${.CURDIR}],
338[case "${enableval}" in
339yes)   ;;
340no)    CPPFLAGS="$CPPFLAGS -DNO_CHECK_MAKE_CHDIR" ;;
341*)     AC_MSG_ERROR(bad value ${enableval} given for check-make-chdir option) ;;
342esac])
343dnl
344dnl On non-BSD systems, bootstrap won't work without mk
345dnl
346AC_ARG_WITH(mksrc,
347[  --with-mksrc=PATH tell makefile.boot where to find mk src],
348[case "${withval}" in
349""|yes|no) ;;
350*) test -s $withval/install-mk && mksrc=$withval ||
351AC_MSG_ERROR(bad value ${withval} given for mksrc cannot find install-mk)
352;;
353esac
354])
355dnl
356dnl Now make sure we have a value
357dnl
358srcdir=`cd $srcdir && pwd`
359for mksrc in $mksrc $srcdir/mk $srcdir/../mk mk
360do
361	test -s $mksrc/install-mk || continue
362	mksrc=`cd $mksrc && pwd`
363	break
364done
365mksrc=`echo $mksrc | sed "s,$srcdir,\\\${srcdir},"`
366echo "Using: MKSRC=$mksrc" 1>&6
367dnl On some systems we want a different default shell by default
368if test -x /usr/xpg4/bin/sh; then
369        defshell_path=${defshell_path:-/usr/xpg4/bin/sh}
370fi
371if test -n "$defshell_path"; then
372	echo "Using: SHELL=$defshell_path"  >&6
373	AC_DEFINE_UNQUOTED(DEFSHELL_CUSTOM, "$defshell_path", Path of default shell)
374fi
375if test -n "$DEFSHELL_INDEX"; then
376       AC_DEFINE_UNQUOTED(DEFSHELL_INDEX, $DEFSHELL_INDEX, Shell spec to use by default)
377fi
378dnl
379AC_SUBST(machine)
380AC_SUBST(force_machine)
381AC_SUBST(machine_arch)
382AC_SUBST(mksrc)
383AC_SUBST(default_sys_path)
384AC_SUBST(INSTALL)
385AC_SUBST(GCC)
386AC_SUBST(diff_u)
387AC_SUBST(use_meta)
388AC_SUBST(filemon_h)
389AC_OUTPUT(makefile Makefile.config make-bootstrap.sh unit-tests/Makefile)
390
391cat <<EOF
392
393You can now run
394
395	sh ./make-bootstrap.sh
396
397to produce a fully functional bmake.
398
399EOF
400