1 #!/bin/sh
2 #
3 # Copyright (c) 2014, 2015, 2016 Ingo Schwarze <schwarze@openbsd.org>
4 # Copyright (c) 2017, 2018 Kristaps Dzonsons <kristaps@bsd.lv>
5 # Copyright (c) 2022 Omar Polo <op@omarpolo.com>
6 #
7 # Permission to use, copy, modify, and distribute this software for any
8 # purpose with or without fee is hereby granted, provided that the above
9 # copyright notice and this permission notice appear in all copies.
10 #
11 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 
19 set -e
20 
21 RELEASE=no
22 
23 usage()
24 {
25 	echo "usage: $0 [--help] [--prefix=prefix] [OPTION=VALUE...]" >&2
26 	exit 1
27 }
28 
29 if command -v yacc 2>/dev/null >&2; then
30 	YACC=yacc
31 elif command -v bison 2>/dev/null >&2; then
32 	YACC=bison
33 else
34 	# assume yacc by default.  Make will fail building parse.y if
35 	# not from a release tarball, but at least it'll have a decent
36 	# error message.
37 	YACC=yacc
38 fi
39 
40 if command -v pkg-config 2>/dev/null >&2; then
41 	pkgconfig=pkg-config
42 else
43 	pkgconfig=
44 fi
45 
46 conf=
47 user=
48 sock=
49 while [ $# -gt 0 ]; do
50 	key="${1%%=*}"
51 	val="${1#*=}"
52 
53 	if [ "$key" = --help ]; then
54 		usage
55 	fi
56 
57 	if [ "$key" = --prefix ]; then
58 		key=PREFIX
59 		if [ "$1" = --prefix ]; then # no =, look at next arg
60 			if !shift 2>&1 >/dev/null; then
61 				echo "$0: missing value for --prefix" >&2
62 				exit 1
63 			fi
64 			val="$1"
65 		fi
66 	fi
67 
68 	if [ "$1" = "$key" ]; then
69 		echo "$0: invalid key-value: $1" >&2
70 		exit 1
71 	fi
72 
73 	case "$key" in
74 	CC)
75 		CC="$val" ;;
76 	CFLAGS)
77 		CFLAGS="$val" ;;
78 	CONF)
79 		conf="$val" ;;
80 	LDADD)
81 		LDADD="$val" ;;
82 	LDADD_IMSG)
83 		LDADD_IMSG="$val" ;;
84 	LDADD_LIBEVENT)
85 		LDADD_LIBEVENT="$val" ;;
86 	LDADD_LIBSOCKET)
87 		LDADD_LIBSOCKET="$val" ;;
88 	PKG_CONFIG)
89 		pkgconfig="$val" ;;
90 	SOCK)
91 		sock="$sock" ;;
92 	USER)
93 		user="$val" ;;
94 	YACC)
95 		YACC="$val" ;;
96 	esac
97 
98 	shift
99 done
100 
101 CDIAGFLAGS=
102 CDIAGFLAGS="${CDIAGFLAGS} -Wall -Wextra -Wpointer-arith -Wuninitialized"
103 CDIAGFLAGS="${CDIAGFLAGS} -Wstrict-prototypes -Wmissing-prototypes -Wunused"
104 CDIAGFLAGS="${CDIAGFLAGS} -Wsign-compare -Wshadow -Wno-unused-parameter"
105 CDIAGFLAGS="${CDIAGFLAGS} -Wno-missing-field-initializers"
106 CDIAGFLAGS="${CDIAGFLAGS} -Wno-pointer-sign"
107 
108 # don't ship releases with -Werror
109 test "$RELEASE" = no && CDIAGFLAGS="${CDIAGFLAGS} -Werror"
110 
111 CFLAGS="${CFLAGS:--O2 -pipe} ${CDIAGFLAGS}"
112 CC="${CC:-cc}"
113 LIBS="${LIBS:-}"
114 LDFLAGS="${LDFLAGS:-}"
115 
116 HOSTCC="${HOSTCC:-${CC}}"
117 HOSTCFLAGS="${HOSTCFLAGS:-${CFLAGS}}"
118 
119 echo "running configure for \`template':" >&2
120 (cd ./template && ./configure CC="$HOSTCC" CFLAGS="$HOSTCFLAGS" YACC="$YACC")
121 echo "returning to the configure for \`galileo':" >&2
122 
123 CFLAGS="${CFLAGS} -I. -Itemplate"
124 test -n "$conf" && CFLAGS="${CFLAGS} -DGALILEO_CONF=\"\\\"$conf\\\"\""
125 test -n "$user" && CFLAGS="${CFLAGS} -DGALILEO_USER=\"\\\"$user\\\"\""
126 test -n "$sock" && CFLAGS="${CFLAGS} -DGALILEO_SOCK=\"\\\"$conf\\\"\""
127 
128 [ -w config.log ] && mv config.log config.log.old
129 
130 exec 3> config.log
131 echo "config.log: writing..."
132 
133 COMPATS=
134 
135 HAVE_ACCEPT4=
136 HAVE_ASR_RUN=
137 HAVE_BUFFEREVENT_READ_PRESSURE_CB=
138 HAVE_ENDIAN=0
139 HAVE_ERR=
140 HAVE_EVENT_ASR_RUN=
141 HAVE_FREEZERO=
142 HAVE_GETDTABLECOUNT=
143 HAVE_GETDTABLESIZE=
144 HAVE_GETEXECNAME=
145 HAVE_GETPROGNAME=
146 HAVE_IMSG=
147 HAVE_LIBEVENT=
148 HAVE_LIBEVENT2=
149 HAVE_MACHINE_ENDIAN=0
150 HAVE_PLEDGE=
151 HAVE_REALLOCARRAY=
152 HAVE_RECALLOCARRAY=
153 HAVE_SETGROUPS=
154 HAVE_SETPROCTITLE=
155 HAVE_SETRESGID=
156 HAVE_SETRESUID=
157 HAVE_STRLCAT=
158 HAVE_STRLCPY=
159 HAVE_STRTONUM=
160 HAVE_SYS_ENDIAN=0
161 HAVE_SYS_QUEUE=
162 HAVE_SYS_TREE=
163 HAVE_UNVEIL=
164 HAVE_VASPRINTF=
165 HAVE_WAIT_ANY=
166 HAVE___PROGNAME=
167 
168 # singletest name var extra-cflags extra-libs msg
169 singletest() {
170 	msg="$5"
171 	if [ -z "$msg" ]; then
172 		if [ -n "$3" ]; then
173 			msg=" ($3)"
174 		elif [ -n "$4" ]; then
175 			msg=" ($4)"
176 		fi
177 	elif [ "$msg" = no ]; then
178 	     msg=""
179 	fi
180 
181 	cat >&3 <<EOF
182 ${1}: testing...
183 $CC tests/${1}.c -Werror $3 -o test-$1 $LDFLAGS $4
184 EOF
185 	if $CC tests/${1}.c -Werror $3 -o test-$1 $LDFLAGS $4 >&3 2>&3; then
186 		rm -f test-${1} test-${1}.d
187 
188 		echo "${1}: $CC$msg succeeded" >&3
189 		echo "${1}$msg: yes"
190 		echo >&3
191 
192 		return 0
193 	fi
194 
195 	echo "${1}: $CC$msg failed with $?" >&3
196 	echo "${1}$msg: no"
197 	echo >&3
198 
199 	return 1
200 }
201 
202 # deptest name var
203 deptest() {
204 	if singletest "$1" "$2" "${CFLAGS}" "${LIBS}" no; then
205 		eval HAVE_${2}=1
206 		return 0
207 	fi
208 
209 	if [ -f compat/${1}.c ]; then
210 		COMPATS="compat/${1}.c $COMPATS"
211 	fi
212 
213 	eval HAVE_${2}=0
214 	return 1
215 }
216 
217 # runtest name var extra-cflags extra-libs pkgconfig-name
218 runtest() {
219 	if singletest "$1" "$2" "" ""; then
220 		eval HAVE_${2}=1
221 		return 0
222 	fi
223 
224 	if [ -n "$3" -o -n "$4" ]; then
225 		echo "retrying with ${3+$3 }$4" >&3
226 		if singletest "$1" "$2" "$3" "$4"; then
227 			if [ -n "$3" ]; then
228 				CFLAGS="$CFLAGS $3"
229 			fi
230 			if [ -n "${4}" ]; then
231 				LIBS="$LIBS $4"
232 			fi
233 			eval HAVE_${2}=1
234 			return 0
235 		fi
236 	fi
237 
238 	if [ -n "$5" -a -n "$pkgconfig" ]; then
239 		if $pkgconfig "$5"; then
240 			cflags="$($pkgconfig --cflags "$5")"
241 			ldflags="$($pkgconfig --libs "$5")"
242 			echo "retrying with pkg-config" >&3
243 			if singletest "$1" "$2" "$3" "$cflags" "$ldflags"; then
244 				CFLAGS="$CFLAGS $cflags"
245 				LIBS="$LIBS $ldflags"
246 				eval HAVE_${2}=1
247 				return 0
248 			fi
249 		fi
250 	fi
251 
252 	if [ -f compat/${1}.c ]; then
253 		COMPATS="compat/${1}.c $COMPATS"
254 	fi
255 
256 	eval HAVE_${2}=0
257 	return 1
258 }
259 
260 if singletest MMD _MMD -MMD >/dev/null; then
261 	CFLAGS="${CFLAGS} -MMD"
262 	echo "adding -MMD to CFLAGS" >&2
263 	echo "adding -MMD to CFLAGS" >&3
264 fi
265 
266 if ! singletest WAIT_ANY WAIT_ANY; then
267 	CFLAGS="${CFLAGS} -DWAIT_ANY=-1"
268 fi
269 
270 runtest endian		ENDIAN || \
271 runtest machine_endian	MACHINE_ENDIAN || \
272 runtest sys_endian	SYS_ENDIAN || true
273 
274 if [ "${HAVE_ENDIAN}" -eq 0 -a \
275      "${HAVE_SYS_ENDIAN}" -eq 0 -a \
276      "${HAVE_MACHINE_ENDIAN}" -eq 0 ]; then
277 	echo "FATAL: no endian header found" 1>&2
278 	echo "FATAL: no endian header found" 1>&3
279 	exit 1
280 fi
281 
282 runtest accept4		ACCEPT4 -D_GNU_SOURCE			|| true
283 runtest asr_run		ASR_RUN "" "-lasr"			|| true
284 runtest err		ERR					|| true
285 runtest freezero	FREEZERO				|| true
286 runtest getdtablecount	GETDTABLECOUNT				|| true
287 runtest getdtablesize	GETDTABLESIZE				|| true
288 runtest getexecname	GETEXECNAME				|| true
289 runtest getprogname	GETPROGNAME				|| true
290 runtest imsg		IMSG "" "-lutil"	libimsg		|| true
291 runtest libevent	LIBEVENT "" "-levent"	libevent_core	|| true
292 runtest libtls		LIBTLS "" "-ltls"	libtls		|| true
293 runtest pledge		PLEDGE					|| true
294 runtest reallocarray	REALLOCARRAY -D_OPENBSD_SOURCE		|| true
295 runtest recallocarray	RECALLOCARRAY -D_OPENBSD_SOURCE		|| true
296 runtest setgroups	SETGROUPS -D_BSD_SOURCE			|| true
297 runtest setproctitle	SETPROCTITLE				|| true
298 runtest setresgid	SETRESGID -D_GNU_SOURCE			|| true
299 runtest setresuid	SETRESUID -D_GNU_SOURCE			|| true
300 runtest strlcat		STRLCAT					|| true
301 runtest strlcpy		STRLCPY					|| true
302 runtest strtonum	STRTONUM				|| true
303 runtest sys_queue	SYS_QUEUE				|| true
304 runtest sys_tree	SYS_TREE				|| true
305 runtest unveil		UNVEIL					|| true
306 runtest vasprintf	VASPRINTF -D_GNU_SOURCE			|| true
307 runtest __progname	__PROGNAME				|| true
308 
309 deptest bufferevent_read_pressure_cb BEV_READ_PRESSURE		|| true
310 deptest event_asr_run	EVENT_ASR_RUN				|| true
311 deptest libevent2	LIBEVENT2				|| true
312 
313 # mandatory things:
314 
315 if [ "${HAVE_ACCEPT4}" -eq 0 ]; then
316 	echo "Fatal: missing accept4(2)" >&2
317 	echo "Fatal: missing accept4(2)" >&3
318 	exit 1
319 fi
320 
321 if [ "${HAVE_ASR_RUN}" -eq 0 ]; then
322 	echo "Fatal: missing libasr" >&2
323 	echo "Fatal: missing libasr" >&3
324 	exit 1
325 fi
326 
327 if [ "${HAVE_LIBEVENT}" -eq 0 ]; then
328 	echo "Fatal: missing libevent" >&2
329 	echo "Fatal: missing libevent" >&3
330 	exit 1
331 fi
332 
333 if [ "${HAVE_LIBTLS}" -eq 0 ]; then
334 	echo "Fatal: missing libtls" >&2
335 	echo "Fatal: missing libtls" >&3
336 	exit 1
337 fi
338 
339 if [ "${HAVE_SETGROUPS}" -eq 0 ]; then
340 	echo "Fatal: missing setgroups(2)" >&2
341 	echo "Fatal: missing setgroups(2)" >&3
342 	exit 1
343 fi
344 
345 # things we can provide by ourselves:
346 
347 if [ "${HAVE_ENDIAN}" -eq 0 ]; then
348 	CFLAGS="-I compat/endian ${CFLAGS}"
349 fi
350 
351 if [ "${HAVE_IMSG}" -eq 0 ]; then
352 	CFLAGS="-I compat/imsg ${CFLAGS}"
353 	COMPATS="compat/imsg/imsg.c compat/imsg/imsg-buffer.c ${COMPATS}"
354 fi
355 
356 if [ "${HAVE_SYS_QUEUE}" -eq 0 -o "${HAVE_SYS_TREE}" -eq 0 ]; then
357 	CFLAGS="-I compat/sys ${CFLAGS}"
358 fi
359 
360 if [ -n "${COMPATS}" ]; then
361 	CFLAGS="-I compat/ ${CFLAGS}"
362 fi
363 
364 exec > config.h
365 echo "config.h: writing..." >&2
366 
367 cat <<EOF
368 #ifndef CONFIG_H
369 #define CONFIG_H
370 
371 #ifdef __cplusplus
372 # error "Do not use C++: this is a C application."
373 #endif
374 
375 #define HAVE_ACCEPT4		${HAVE_ACCEPT4}
376 #define HAVE_ASR_RUN		${HAVE_ASR_RUN}
377 #define HAVE_BUFFEREVENT_READ_PRESSURE_CB ${HAVE_BUFFEREVENT_READ_PRESSURE_CB}
378 #define HAVE_ENDIAN		${HAVE_ENDIAN}
379 #define HAVE_ERR		${HAVE_ERR}
380 #define HAVE_EVENT_ASR_RUN	${HAVE_EVENT_ASR_RUN}
381 #define HAVE_FREEZERO		${HAVE_FREEZERO}
382 #define HAVE_GETDTABLECOUNT	${HAVE_GETDTABLECOUNT}
383 #define HAVE_GETDTABLESIZE	${HAVE_GETDTABLESIZE}
384 #define HAVE_GETEXECNAME	${HAVE_GETEXECNAME}
385 #define HAVE_GETPROGNAME	${HAVE_GETPROGNAME}
386 #define HAVE_IMSG		${HAVE_IMSG}
387 #define HAVE_LIBEVENT		${HAVE_LIBEVENT}
388 #define HAVE_LIBEVENT2		${HAVE_LIBEVENT2}
389 #define HAVE_MACHINE_ENDIAN	${HAVE_MACHINE_ENDIAN}
390 #define HAVE_PLEDGE		${HAVE_PLEDGE}
391 #define HAVE_REALLOCARRAY	${HAVE_REALLOCARRAY}
392 #define HAVE_RECALLOCARRAY	${HAVE_RECALLOCARRAY}
393 #define HAVE_SETGROUPS		${HAVE_SETGROUPS}
394 #define HAVE_SETPROCTITLE	${HAVE_SETPROCTITLE}
395 #define HAVE_SETRESGID		${HAVE_SETRESGID}
396 #define HAVE_SETRESUID		${HAVE_SETRESUID}
397 #define HAVE_STRLCAT		${HAVE_STRLCAT}
398 #define HAVE_STRLCPY		${HAVE_STRLCPY}
399 #define HAVE_STRTONUM		${HAVE_STRTONUM}
400 #define HAVE_SYS_ENDIAN		${HAVE_SYS_ENDIAN}
401 #define HAVE_SYS_QUEUE		${HAVE_SYS_QUEUE}
402 #define HAVE_SYS_TREE		${HAVE_SYS_TREE}
403 #define HAVE_UNVEIL		${HAVE_UNVEIL}
404 #define HAVE_VASPRINTF		${HAVE_VASPRINTF}
405 #define HAVE___PROGNAME		${HAVE___PROGNAME}
406 
407 #endif
408 EOF
409 
410 exec > config.mk
411 echo "config.mk: writing..." >&2
412 
413 cat <<EOF
414 CC=		${CC}
415 CFLAGS=		${CFLAGS}
416 LIBS=		${LIBS}
417 LDFLAGS=	${LDFLAGS}
418 YACC=		${YACC}
419 
420 COMPATS=	${COMPATS}
421 
422 INSTALL=	install
423 INSTALL_PROGRAM=\${INSTALL} -m 0555
424 INSTALL_LIB=	\${INSTALL} -m 0444
425 INSTALL_MAN=	\${INSTALL} -m 0444
426 INSTALL_DATA=	\${INSTALL} -m 0444
427 
428 EOF
429 
430 echo "done!" >&2
431 
432 echo >&2
433 echo "Now run \`make' to compile." >&2
434 echo >&2