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="${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 db=
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 	DB)
79 		db="$val" ;;
80 	LDADD)
81 		LDADD="$val" ;;
82 	LDADD_LIBEVENT)
83 		LDADD_LIBEVENT="$val" ;;
84 	LDADD_LIBSQLITE3)
85 		LDADD_LIBSQLITE3="$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="$YACC")
121 # echo "returning to the configure for \`pkg_fcgi':" >&2
122 
123 CFLAGS="${CFLAGS} -I. -Itemplate"
124 test -n "$db"   && CFLAGS="${CFLAGS} -DPKG_FCGI_DB=\"\\\"$conf\\\"\""
125 test -n "$user" && CFLAGS="${CFLAGS} -DPKG_FCGI_USER=\"\\\"$user\\\"\""
126 test -n "$sock" && CFLAGS="${CFLAGS} -DPKG_FCGI_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_ERR=
137 HAVE_FREEZERO=
138 HAVE_GETDTABLECOUNT=
139 HAVE_GETDTABLESIZE=
140 HAVE_GETEXECNAME=
141 HAVE_GETPROGNAME=
142 HAVE_LIBEVENT=
143 HAVE_LIBSQLITE3=
144 HAVE_PLEDGE=
145 HAVE_REALLOCARRAY=
146 HAVE_RECALLOCARRAY=
147 HAVE_SETGROUPS=
148 HAVE_SETPROCTITLE=
149 HAVE_SETRESGID=
150 HAVE_SETRESUID=
151 HAVE_STRLCAT=
152 HAVE_STRLCPY=
153 HAVE_STRTONUM=
154 HAVE_SYS_QUEUE=
155 HAVE_SYS_TREE=
156 HAVE_UNVEIL=
157 HAVE_VASPRINTF=
158 HAVE_WAIT_ANY=
159 HAVE___PROGNAME=
160 
161 # singletest name var extra-cflags extra-libs msg
162 singletest() {
163 	msg="$5"
164 	if [ -z "$msg" ]; then
165 		if [ -n "$3" -a "$4" ]; then
166 			msg=" ($3 $4)"
167 		elif [ -n "$3" ]; then
168 			msg=" ($3)"
169 		elif [ -n "$4" ]; then
170 			msg=" ($4)"
171 		fi
172 	elif [ "$msg" = no ]; then
173 	     msg=""
174 	fi
175 
176 	cat >&3 <<EOF
177 ${1}: testing...
178 $CC tests/${1}.c -Werror $3 -o test-$1 $LDFLAGS $4
179 EOF
180 	if $CC tests/${1}.c -Werror $3 -o test-$1 $LDFLAGS $4 >&3 2>&3; then
181 		rm -f test-${1} test-${1}.d
182 
183 		echo "${1}: $CC$msg succeeded" >&3
184 		echo "${1}$msg: yes"
185 		echo >&3
186 
187 		return 0
188 	fi
189 
190 	echo "${1}: $CC$msg failed with $?" >&3
191 	echo "${1}$msg: no"
192 	echo >&3
193 
194 	return 1
195 }
196 
197 # deptest name var
198 deptest() {
199 	if singletest "$1" "$2" "${CFLAGS}" "${LIBS}" no; then
200 		eval HAVE_${2}=1
201 		return 0
202 	fi
203 
204 	if [ -f compat/${1}.c ]; then
205 		COMPATS="compat/${1}.c $COMPATS"
206 	fi
207 
208 	eval HAVE_${2}=0
209 	return 1
210 }
211 
212 # runtest name var extra-cflags extra-libs pkgconfig-name
213 runtest() {
214 	if singletest "$1" "$2" "" ""; then
215 		eval HAVE_${2}=1
216 		return 0
217 	fi
218 
219 	if [ -n "$3" -o -n "$4" ]; then
220 		echo "retrying with ${3+$3 }$4" >&3
221 		if singletest "$1" "$2" "$3" "$4"; then
222 			if [ -n "$3" ]; then
223 				CFLAGS="$CFLAGS $3"
224 			fi
225 			if [ -n "${4}" ]; then
226 				LIBS="$LIBS $4"
227 			fi
228 			eval HAVE_${2}=1
229 			return 0
230 		fi
231 	fi
232 
233 	if [ -n "$5" -a -n "$pkgconfig" ]; then
234 		if $pkgconfig "$5"; then
235 			cflags="$($pkgconfig --cflags "$5")"
236 			ldflags="$($pkgconfig --libs "$5")"
237 			echo "retrying with pkg-config" >&3
238 			if singletest "$1" "$2" "$3" "$cflags" "$ldflags"; then
239 				CFLAGS="$CFLAGS $cflags"
240 				LIBS="$LIBS $ldflags"
241 				eval HAVE_${2}=1
242 				return 0
243 			fi
244 		fi
245 	fi
246 
247 	if [ -f compat/${1}.c ]; then
248 		COMPATS="compat/${1}.c $COMPATS"
249 	fi
250 
251 	eval HAVE_${2}=0
252 	return 1
253 }
254 
255 if singletest MMD _MMD -MMD >/dev/null; then
256 	CFLAGS="${CFLAGS} -MMD"
257 	echo "adding -MMD to CFLAGS" >&2
258 	echo "adding -MMD to CFLAGS" >&3
259 fi
260 
261 if ! singletest WAIT_ANY WAIT_ANY; then
262 	CFLAGS="${CFLAGS} -DWAIT_ANY=-1"
263 fi
264 
265 runtest accept4		ACCEPT4 -D_GNU_SOURCE			|| true
266 runtest err		ERR					|| true
267 runtest freezero	FREEZERO				|| true
268 runtest getdtablecount	GETDTABLECOUNT				|| true
269 runtest getdtablesize	GETDTABLESIZE				|| true
270 runtest getexecname	GETEXECNAME				|| true
271 runtest getprogname	GETPROGNAME				|| true
272 runtest libevent	LIBEVENT "" "-levent"	libevent_core	|| true
273 runtest libsqlite3	LIBSQLITE3 "-I/usr/local/include" "-L/usr/local/lib -lsqlite3" sqlite3	|| true
274 runtest pledge		PLEDGE					|| true
275 runtest reallocarray	REALLOCARRAY -D_OPENBSD_SOURCE		|| true
276 runtest recallocarray	RECALLOCARRAY -D_OPENBSD_SOURCE		|| true
277 runtest setgroups	SETGROUPS -D_BSD_SOURCE			|| true
278 runtest setproctitle	SETPROCTITLE				|| true
279 runtest setresgid	SETRESGID -D_GNU_SOURCE			|| true
280 runtest setresuid	SETRESUID -D_GNU_SOURCE			|| true
281 runtest strlcat		STRLCAT					|| true
282 runtest strlcpy		STRLCPY					|| true
283 runtest strtonum	STRTONUM				|| true
284 runtest sys_queue	SYS_QUEUE				|| true
285 runtest sys_tree	SYS_TREE				|| true
286 runtest unveil		UNVEIL					|| true
287 runtest vasprintf	VASPRINTF -D_GNU_SOURCE			|| true
288 runtest __progname	__PROGNAME				|| true
289 
290 # mandatory things:
291 
292 if [ "${HAVE_ACCEPT4}" -eq 0 ]; then
293 	echo "Fatal: missing accept4(2)" >&2
294 	echo "Fatal: missing accept4(2)" >&3
295 	exit 1
296 fi
297 
298 if [ "${HAVE_LIBEVENT}" -eq 0 ]; then
299 	echo "Fatal: missing libevent" >&2
300 	echo "Fatal: missing libevent" >&3
301 	exit 1
302 fi
303 
304 if [ "${HAVE_LIBSQLITE3}" -eq 0 ]; then
305 	echo "Fatal: missing libsqlite3" >&2
306 	echo "Fatal: missing libsqlite3" >&3
307 	exit 1
308 fi
309 
310 if [ "${HAVE_SETGROUPS}" -eq 0 ]; then
311 	echo "Fatal: missing setgroups(2)" >&2
312 	echo "Fatal: missing setgroups(2)" >&3
313 	exit 1
314 fi
315 
316 # things we can provide by ourselves:
317 
318 if [ "${HAVE_SYS_QUEUE}" -eq 0 -o "${HAVE_SYS_TREE}" -eq 0 ]; then
319 	CFLAGS="-I compat/sys ${CFLAGS}"
320 fi
321 
322 if [ -n "${COMPATS}" ]; then
323 	CFLAGS="-I compat/ ${CFLAGS}"
324 fi
325 
326 exec > config.h
327 echo "config.h: writing..." >&2
328 
329 cat <<EOF
330 #ifndef CONFIG_H
331 #define CONFIG_H
332 
333 #ifdef __cplusplus
334 # error "Do not use C++: this is a C application."
335 #endif
336 
337 #define HAVE_ACCEPT4		${HAVE_ACCEPT4}
338 #define HAVE_ERR		${HAVE_ERR}
339 #define HAVE_FREEZERO		${HAVE_FREEZERO}
340 #define HAVE_GETDTABLECOUNT	${HAVE_GETDTABLECOUNT}
341 #define HAVE_GETDTABLESIZE	${HAVE_GETDTABLESIZE}
342 #define HAVE_GETEXECNAME	${HAVE_GETEXECNAME}
343 #define HAVE_GETPROGNAME	${HAVE_GETPROGNAME}
344 #define HAVE_LIBEVENT		${HAVE_LIBEVENT}
345 #define HAVE_LIBSQLITE3		${HAVE_LIBSQLITE3}
346 #define HAVE_PLEDGE		${HAVE_PLEDGE}
347 #define HAVE_REALLOCARRAY	${HAVE_REALLOCARRAY}
348 #define HAVE_RECALLOCARRAY	${HAVE_RECALLOCARRAY}
349 #define HAVE_SETGROUPS		${HAVE_SETGROUPS}
350 #define HAVE_SETPROCTITLE	${HAVE_SETPROCTITLE}
351 #define HAVE_SETRESGID		${HAVE_SETRESGID}
352 #define HAVE_SETRESUID		${HAVE_SETRESUID}
353 #define HAVE_STRLCAT		${HAVE_STRLCAT}
354 #define HAVE_STRLCPY		${HAVE_STRLCPY}
355 #define HAVE_STRTONUM		${HAVE_STRTONUM}
356 #define HAVE_SYS_QUEUE		${HAVE_SYS_QUEUE}
357 #define HAVE_SYS_TREE		${HAVE_SYS_TREE}
358 #define HAVE_UNVEIL		${HAVE_UNVEIL}
359 #define HAVE_VASPRINTF		${HAVE_VASPRINTF}
360 #define HAVE___PROGNAME		${HAVE___PROGNAME}
361 
362 #endif
363 EOF
364 
365 exec > config.mk
366 echo "config.mk: writing..." >&2
367 
368 cat <<EOF
369 CC=		${CC}
370 CFLAGS=		${CFLAGS}
371 LIBS=		${LIBS}
372 LDFLAGS=	${LDFLAGS}
373 YACC=		${YACC}
374 
375 COMPATS=	${COMPATS}
376 
377 INSTALL=	install
378 INSTALL_PROGRAM=\${INSTALL} -m 0555
379 INSTALL_LIB=	\${INSTALL} -m 0444
380 INSTALL_MAN=	\${INSTALL} -m 0444
381 INSTALL_DATA=	\${INSTALL} -m 0444
382 
383 EOF
384 
385 echo "done!" >&2
386 
387 echo >&2
388 echo "Now run \`make' to compile." >&2
389 echo >&2