1 # Process this file with autoconf to produce a configure script.
2 
3 AC_PREREQ([2.69])
4 AC_INIT([got-portable], [0.67], [thomas@xteddy.org])
5 AC_CONFIG_AUX_DIR(etc)
6 AC_CONFIG_SRCDIR([lib/rcsutil.h])
7 AM_INIT_AUTOMAKE([foreign subdir-objects])
8 
9 GOT_RELEASE=No
10 
11 AC_DEFINE_UNQUOTED(VERSION, "$VERSION")
12 AC_SUBST(VERSION)
13 AC_SUBST(GOT_RELEASE)
14 
15 AC_CANONICAL_HOST
16 
17 # When CFLAGS isn't set at this stage and gcc is detected by the macro below,
18 # autoconf will automatically use CFLAGS="-O2 -g". Prevent that by using an
19 # empty default.
20 : ${CFLAGS=""}
21 
22 # Save user CPPFLAGS, CFLAGS and LDFLAGS. We need to change them because
23 # AC_CHECK_HEADER doesn't give us any other way to update the include
24 # paths. But for Makefile.am we want to use AM_CPPFLAGS and friends.
25 SAVED_CFLAGS="$CFLAGS"
26 SAVED_CPPFLAGS="$CPPFLAGS"
27 SAVED_LDFLAGS="$LDFLAGS"
28 
29 # Checks for programs.
30 AC_PROG_CC
31 AC_PROG_CPP
32 AC_PROG_INSTALL
33 AC_PROG_LN_S
34 AC_PROG_MAKE_SET
35 AC_PROG_YACC
36 AC_PROG_RANLIB
37 PKG_PROG_PKG_CONFIG
38 AC_USE_SYSTEM_EXTENSIONS
39 
40 # Checks for header files.
41 AC_CHECK_HEADERS([ \
42 	fcntl.h \
43 	langinfo.h \
44 	limits.h \
45 	linux/landlock.h \
46 	locale.h \
47 	netdb.h \
48 	netinet/in.h \
49 	paths.h \
50 	poll.h \
51 	stddef.h \
52 	stdint.h \
53 	stdlib.h \
54 	string.h \
55 	sys/ioctl.h \
56 	sys/param.h \
57 	sys/poll.h \
58 	sys/socket.h \
59 	sys/time.h \
60 	sys/tree.h \
61 	util.h \
62 	unistd.h \
63 	wchar.h \
64 ])
65 
66 # Checks for typ edefs, structures, and compiler characteristics.
67 AC_CHECK_HEADER_STDBOOL
68 AC_C_INLINE
69 AC_TYPE_INT64_T
70 AC_TYPE_MODE_T
71 AC_TYPE_OFF_T
72 AC_TYPE_PID_T
73 AC_TYPE_SIZE_T
74 AC_TYPE_SSIZE_T
75 AC_TYPE_UINT16_T
76 AC_TYPE_UINT32_T
77 AC_TYPE_UINT64_T
78 AC_TYPE_UINT8_T
79 
80 # Look for library needed for flock.
81 AC_SEARCH_LIBS(flock, bsd)
82 
83 # Checks for library functions.
84 AC_FUNC_FORK
85 AC_FUNC_FSEEKO
86 AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
87 AC_FUNC_MALLOC
88 AC_FUNC_MMAP
89 AC_FUNC_REALLOC
90 AC_FUNC_STRERROR_R
91 AC_FUNC_STRNLEN
92 AC_CHECK_FUNCS([ \
93 	dup2 \
94 	flock \
95 	getcwd \
96 	localtime_r \
97 	memchr \
98 	memmove \
99 	memset \
100 	mkdir \
101 	munmap \
102 	nl_langinfo \
103 	realpath \
104 	regcomp \
105 	rmdir \
106 	setlocale \
107 	socket \
108 	strcasecmp \
109 	strchr \
110 	strcspn \
111 	strdup \
112 	strerror \
113 	strlcpy \
114 	strncasecmp \
115 	strndup \
116 	strrchr \
117 	strspn \
118 	strstr \
119 	strtol \
120 	strtoul \
121 	wcwidth \
122 ])
123 
124 # Check for functions with a compatibility implementation.
125 AC_REPLACE_FUNCS([ \
126 	asprintf \
127 	closefrom \
128 	explicit_bzero \
129 	fmt_scaled \
130 	freezero \
131 	getdtablecount \
132 	getline \
133 	getprogname \
134 	recallocarray \
135 	reallocarray \
136 	strlcat \
137 	strlcpy \
138 	strndup \
139 	strsep \
140 	strtonum \
141 ])
142 
143 # Always use our getopt because 1) glibc's doesn't enforce argument order 2)
144 # musl does not set optarg to NULL for flags without arguments (although it is
145 # not required to, but it is helpful) 3) there are probably other weird
146 # implementations.
147 AC_LIBOBJ(getopt)
148 
149 # Check the platform we're compiling on.
150 AC_MSG_CHECKING(platform)
151 case "$host_os" in
152 	*linux*)
153 		AC_MSG_RESULT(linux)
154 		PLATFORM=linux
155 		;;
156 	*freebsd*)
157 		AC_MSG_RESULT(freebsd)
158 		PLATFORM=freebsd
159 		;;
160 	*darwin*)
161 		AC_MSG_RESULT(darwin)
162 		PLATFORM=darwin
163 		;;
164 	*netbsd*)
165 		AC_MSG_RESULT(netbsd)
166 		PLATFORM=netbsd
167 		;;
168 	*)
169 		AC_MSG_RESULT(unknown)
170 		PLATFORM=unknown
171 		;;
172 esac
173 AC_SUBST(PLATFORM)
174 AM_CONDITIONAL([HOST_FREEBSD], [test "$PLATFORM" = "freebsd"])
175 AM_CONDITIONAL([HOST_LINUX], [test "$PLATFORM" = "linux"])
176 AM_CONDITIONAL([HOST_DARWIN], [test "$PLATFORM" = "darwin"])
177 AM_CONDITIONAL([HOST_NETBSD], [test "$PLATFORM" = "netbsd"])
178 
179 # Landlock detection.
180 AC_MSG_CHECKING([for landlock])
181 AM_CONDITIONAL([HAVE_LINUX_LANDLOCK],
182     [test "x$ac_cv_header_linux_landlock_h" = "xyes"])
183 if test "x$ac_cv_header_linux_landlock_h" = "xyes"; then
184 	AC_MSG_RESULT(yes)
185 else
186 	AC_MSG_RESULT(no)
187 fi
188 
189 # Clang sanitizers wrap reallocarray even if it isn't available on the target
190 # system. When compiled it always returns NULL and crashes the program. To
191 # detect this we need a more complicated test.
192 AC_MSG_CHECKING([for working reallocarray])
193 AC_RUN_IFELSE([AC_LANG_PROGRAM(
194 		[#include <stdlib.h>],
195 		[return (reallocarray(NULL, 1, 1) == NULL);]
196 	)],
197 	AC_MSG_RESULT(yes),
198 	[AC_LIBOBJ(reallocarray) AC_MSG_RESULT([no])]
199 )
200 AC_MSG_CHECKING([for working recallocarray])
201 AC_RUN_IFELSE([AC_LANG_PROGRAM(
202 		[#include <stdlib.h>],
203 		[return (recallocarray(NULL, 1, 1, 1) == NULL);]
204 	)],
205 	AC_MSG_RESULT(yes),
206 	[AC_LIBOBJ(recallocarray) AC_MSG_RESULT([no])]
207 )
208 
209 # Look for imsg_init in libutil.
210 AC_SEARCH_LIBS(imsg_init, util, found_imsg_init=yes, found_imsg_init=no)
211 if test "x$found_imsg_init" = xyes; then
212 	AC_DEFINE(HAVE_IMSG)
213 else
214 	AC_LIBOBJ(imsg)
215 	AC_LIBOBJ(imsg-buffer)
216 fi
217 
218 # libcrypto (via libssl for SHA information)
219 PKG_CHECK_MODULES(
220 	LIBCRYPTO,
221 	libcrypto,
222 	[
223 	 	AM_CFLAGS="$LIBCRYPTO_CFLAGS $AM_CFLAGS"
224 		CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
225 		LIBS="$LIBCRYPTO_LIBS $LIBS"
226 		found_libcrypto=yes
227 	],
228 	[
229 	 	found_libcrypto=no
230 	]
231 )
232 
233 if test "x$found_libcrypto" = "xyes"; then
234 	AC_DEFINE(HAVE_LIBCRYPTO)
235 fi
236 
237 AC_SEARCH_LIBS(uuid_create, , AC_DEFINE(HAVE_BSD_UUID))
238 AC_SEARCH_LIBS(uuid_create, found_uuid=no, found_uuid=yes)
239 AC_SEARCH_LIBS(mergesort, , AC_DEFINE(HAVE_BSD_MERGESORT))
240 
241 # Don't define HAVE_BSD_UUID on darwin (Apple) as this breaks the BSD API.
242 # Instead, use the UUID implementation wrapper that's in compat/ plus uuid
243 # ossp
244 if test "x$found_uuid" = "xyes" -a "x$PLATFORM" != "darwin"; then
245 	AC_DEFINE(HAVE_BSD_UUID)
246 else
247 	PKG_CHECK_MODULES(
248 		LIBUUID,
249 		uuid,
250 		[
251 			AM_CFLAGS="$LIBUUID_CFLAGS $AM_CFLAGS"
252 			CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
253 			LIBS="$LIBUUID_LIBS $LIBS"
254 			found_libuuid=yes
255 		],
256 		[
257 			found_libuuid=no
258 		]
259 	)
260 
261 	if test "x$found_libuuid" = "xno"; then
262 		AC_CHECK_HEADER(
263 			uuid.h,
264 			found_libuuid=yes,
265 			found_libuuid=no)
266 	fi
267 fi
268 
269 if test "x$found_libuuid" = "xno"; then
270 	AC_MSG_ERROR("*** couldn't find uuid ***")
271 fi
272 
273 PKG_CHECK_MODULES(
274 	ZLIB,
275 	zlib,
276 	[
277 	 	AM_CFLAGS="$ZLIB_CFLAGS $AM_CFLAGS"
278 		CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
279 		LIBS="$ZLIB_LIBS $LIBS"
280 		found_zlib=yes
281 	],
282 	[
283 	 	found_zlib=no
284 	]
285 )
286 
287 if test "x$found_zlib" = "xno"; then
288 	AC_CHECK_HEADER(
289 		zlib.h,
290 		,
291 		found_zlib=no)
292 fi
293 
294 if test "x$found_zlib" = "xno"; then
295 	AC_MSG_ERROR("*** couldn't find zlib ***")
296 fi
297 
298 if test "$PLATFORM" = "linux"; then
299 	PKG_CHECK_MODULES(
300 		LIBMD,
301 		libmd,
302 		[
303 			AM_CFLAGS="$LIBMD_CFLAGS $AM_CFLAGS"
304 			CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
305 			LIBS="$LIBMD_LIBS $LIBS"
306 		],
307 		[
308 			AC_MSG_ERROR("*** couldn't find libmd via pkg-config")
309 		]
310 	)
311 	PKG_CHECK_MODULES(
312 		LIBBSD,
313 		libbsd-overlay,
314 		[
315 			AM_CFLAGS="$LIBBSD_CFLAGS $AM_CFLAGS"
316 			CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
317 			LIBS="$LIBBSD_LIBS $LIBS"
318 			found_libbsd=yes
319 			AC_DEFINE(HAVE_LIBBSD)
320 		],
321 		[]
322 	)
323 fi
324 
325 # Look for a suitable queue.h.  We hope libbsd is enough, but that is missing
326 # SIMPLEQ.
327 AC_CHECK_DECL(
328 	SIMPLEQ_INIT,
329 	found_queue_h=yes,
330 	found_queue_h=no,
331 	[#include <sys/queue.h>]
332 )
333 AC_CHECK_DECL(
334 	TAILQ_CONCAT,
335 	found_queue_h=yes,
336 	found_queue_h=no,
337 	[#include <sys/queue.h>]
338 )
339 AC_CHECK_DECL(
340 	TAILQ_PREV,
341 	found_queue_h=yes,
342 	found_queue_h=no,
343 	[#include <sys/queue.h>]
344 )
345 AC_CHECK_DECL(
346 	TAILQ_REPLACE,
347 	found_queue_h=yes,
348 	found_queue_h=no,
349 	[#include <sys/queue.h>]
350 )
351 AC_CHECK_DECL(
352 	SIMPLEQ_ENTRY,
353 	,
354 	found_queue_h=no,
355 	[#include <sys/queue.h>]
356 )
357 AC_CHECK_DECL(
358 	TAILQ_FOREACH_SAFE,
359 	,
360 	found_queue_h=no,
361 	[#include <sys/queue.h>]
362 )
363 if test "x$found_queue_h" = xyes; then
364 	AC_DEFINE(HAVE_QUEUE_H)
365 fi
366 
367 # Look for __progname.
368 AC_MSG_CHECKING(for __progname)
369 AC_LINK_IFELSE([AC_LANG_SOURCE(
370 	[
371 		#include <stdio.h>
372 		#include <stdlib.h>
373 		extern char *__progname;
374 		int main(void) {
375 			const char *cp = __progname;
376 			printf("%s\n", cp);
377 			exit(0);
378 		}
379 	])],
380 	[AC_DEFINE(HAVE___PROGNAME) AC_MSG_RESULT(yes)],
381 	AC_MSG_RESULT(no)
382 )
383 
384 PKG_CHECK_MODULES(
385 	LIBPANELW,
386 	panelw,
387 	found_panel=yes,
388 	found_panel=no
389 )
390 
391 PKG_CHECK_MODULES(
392 	LIBPANELW,
393 	gnupanelw,
394 	found_panel=yes,
395 	found_panel=no
396 )
397 
398 if test "x$found_panel" = "xno"; then
399 	AC_CHECK_LIB(panelw, update_panels,,
400 		AC_MSG_ERROR([ "*** panelw not found for ncurses. ***"])
401 	)
402 
403 	LIBPANELW_LIBS="-lpanelw"
404 fi
405 
406 PKG_CHECK_MODULES(
407 	LIBNCURSES,
408 	ncursesw,
409 	found_ncurses=yes,
410 	found_ncurses=no
411 )
412 if test "x$found_ncurses" = xyes; then
413 	AM_CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $LIBPANELW_CFLAGS $AM_CFLAGS"
414 	CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $LIBPANELW_CFLAGS $CFLAGS"
415 	LIBS="$LIBNCURSES_LIBS $LIBTINFO_LIBS $LIBPANELW_LIBS $LIBS"
416 else
417 	AC_CHECK_LIB(
418 		ncursesw,
419 		setupterm,
420 		found_ncurses=yes,
421 		found_ncurses=no
422 	)
423 	if test "x$found_ncurses" = xyes; then
424 		AC_CHECK_HEADER(
425 			ncurses.h,
426 			AM_CFLAGS="$LIBPANELW_CFLAGS $AM_CFLAGS"
427 			CFLAGS="$LIBPANEL_CFLAGS $CFLAGS"
428 			LIBS="$LIBS -lncursesw $LIBPANELW_LIBS",
429 			found_ncurses=no
430 		)
431 	fi
432 fi
433 if test "x$found_ncurses" = xyes; then
434 	AC_DEFINE(HAVE_NCURSES_H)
435 else
436 	# No ncurses, try curses.
437 	AC_CHECK_LIB(
438 		cursesw,
439 		setupterm,
440 		found_curses=yes,
441 		found_curses=no
442 	)
443 	AC_CHECK_HEADER(
444 		curses.h,
445 		,
446 		found_curses=no)
447 	if test "x$found_curses" = xyes; then
448 		AM_CFLAGS="$LIBPANELW_CFLAGS $AM_CFLAGS"
449 		CFLAGS="$LIBPANEL_CFLAGS $CFLAGS"
450 		LIBS="$LIBS -lcursesw $LIBPANELW_LIBS"
451 		AC_DEFINE(HAVE_CURSES_H)
452 	else
453 		AC_MSG_ERROR("curses not found")
454 	fi
455 fi
456 
457 # Save our CFLAGS/CPPFLAGS/LDFLAGS for the Makefile and restore the old user
458 # variables.
459 AC_SUBST(AM_CPPFLAGS)
460 CPPFLAGS="$SAVED_CPPFLAGS"
461 AC_SUBST(AM_CFLAGS)
462 CFLAGS="$SAVED_CFLAGS"
463 AC_SUBST(AM_LDFLAGS)
464 LDFLAGS="$SAVED_LDFLAGS"
465 
466 AC_CONFIG_FILES([Makefile
467 		 compat/Makefile
468 		 libexec/Makefile
469 		 libexec/got-read-tree/Makefile
470 		 libexec/got-fetch-pack/Makefile
471 		 libexec/got-index-pack/Makefile
472 		 libexec/got-read-blob/Makefile
473 		 libexec/got-read-commit/Makefile
474 		 libexec/got-read-gitconfig/Makefile
475 		 libexec/got-read-gotconfig/Makefile
476 		 libexec/got-read-object/Makefile
477 		 libexec/got-read-pack/Makefile
478 		 libexec/got-read-tag/Makefile
479 		 libexec/got-send-pack/Makefile
480 		 got/Makefile
481 		 gotadmin/Makefile
482 		 tog/Makefile
483 		 Makefile.common:Makefile.common.in])
484 AC_OUTPUT
485 
486 #                tog/GNUMakefile])
487 #                regress/GNUMakefile
488 #                regress/cmdline/GNUMakefile
489 #                regress/delta/GNUMakefile
490 #                regress/fetch/GNUMakefile
491 #                regress/idset/GNUMakefile
492 #                regress/path/GNUMakefile
493 #                 gotweb/GNUMakefile
494 #                 gotweb/libexec/GNUMakefile
495 #                 gotweb/libexec/got-read-blob/GNUMakefile
496 #                 gotweb/libexec/got-read-commit/GNUMakefile
497 #                 gotweb/libexec/got-read-gitconfig/GNUMakefile
498 #                 gotweb/libexec/got-read-gotconfig/GNUMakefile
499 #                 gotweb/libexec/got-read-object/GNUMakefile
500 #                 gotweb/libexec/got-read-pack/GNUMakefile
501 #                 gotweb/libexec/got-read-tag/GNUMakefile
502 #                 gotweb/libexec/got-read-tree/GNUMakefile