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1 12042ad7 2021-01-21 op #!/bin/sh
2 12042ad7 2021-01-21 op #
3 12042ad7 2021-01-21 op # Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 12042ad7 2021-01-21 op #
5 12042ad7 2021-01-21 op # Permission to use, copy, modify, and distribute this software for any
6 12042ad7 2021-01-21 op # purpose with or without fee is hereby granted, provided that the above
7 12042ad7 2021-01-21 op # copyright notice and this permission notice appear in all copies.
8 12042ad7 2021-01-21 op #
9 12042ad7 2021-01-21 op # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 12042ad7 2021-01-21 op # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 12042ad7 2021-01-21 op # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 12042ad7 2021-01-21 op # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 12042ad7 2021-01-21 op # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 12042ad7 2021-01-21 op # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 12042ad7 2021-01-21 op # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 12042ad7 2021-01-21 op
17 12042ad7 2021-01-21 op # adapted from mandoc configure and oconfigure, thanks schwarze@ and
18 12042ad7 2021-01-21 op # kristaps@!
19 12042ad7 2021-01-21 op
20 12042ad7 2021-01-21 op set -e
21 12042ad7 2021-01-21 op
22 12042ad7 2021-01-21 op [ -w config.log ] && mv config.log config.log.old
23 12042ad7 2021-01-21 op [ -w config.h ] && mv config.h config.h.old
24 12042ad7 2021-01-21 op
25 12042ad7 2021-01-21 op # Output file descriptor usage:
26 12042ad7 2021-01-21 op # 1 (stdout): config.h, Makefile.local
27 12042ad7 2021-01-21 op # 2 (stderr): original stderr, usually to the console
28 12042ad7 2021-01-21 op # 3: config.log
29 12042ad7 2021-01-21 op
30 12042ad7 2021-01-21 op exec 3> config.log
31 12042ad7 2021-01-21 op echo "file config.log: writing..."
32 12042ad7 2021-01-21 op
33 12042ad7 2021-01-21 op # --------
34 12042ad7 2021-01-21 op # default settings: initialize all vars here
35 12042ad7 2021-01-21 op
36 12042ad7 2021-01-21 op CC=cc
37 12042ad7 2021-01-21 op CFLAGS=
38 12042ad7 2021-01-21 op LDFLAGS=-ltls
39 12042ad7 2021-01-21 op YACC=yacc
40 12042ad7 2021-01-21 op LEX=lex
41 12042ad7 2021-01-21 op STATIC=
42 12042ad7 2021-01-21 op
43 12042ad7 2021-01-21 op HAVE_ERR=
44 12042ad7 2021-01-21 op HAVE_GETPROGNAME=
45 12042ad7 2021-01-21 op HAVE_LIBTLS=
46 12042ad7 2021-01-21 op HAVE_STRLCAT=
47 12042ad7 2021-01-21 op HAVE_STRLCPY=
48 12042ad7 2021-01-21 op HAVE_VASPRINTF=
49 12042ad7 2021-01-21 op
50 12042ad7 2021-01-21 op NEED_GNU_SOURCE=0
51 12042ad7 2021-01-21 op NEED_OPENBSD_SOURCE=0
52 12042ad7 2021-01-21 op
53 12042ad7 2021-01-21 op PREFIX="/usr/local"
54 12042ad7 2021-01-21 op BINDIR=
55 12042ad7 2021-01-21 op
56 12042ad7 2021-01-21 op INSTALL="install"
57 12042ad7 2021-01-21 op
58 12042ad7 2021-01-21 op # try to auto detect CFLAGS and LDFLAGS
59 12042ad7 2021-01-21 op which pkg-config 2>/dev/null 1>&2 && {
60 12042ad7 2021-01-21 op if ! got=`pkg-config --cflags libtls`; then
61 12042ad7 2021-01-21 op CFLAGS="$got"
62 12042ad7 2021-01-21 op fi
63 12042ad7 2021-01-21 op
64 12042ad7 2021-01-21 op if ! got=`pkg-config --libs libtls`; then
65 12042ad7 2021-01-21 op LDFLAGS="$got"
66 12042ad7 2021-01-21 op fi
67 12042ad7 2021-01-21 op }
68 12042ad7 2021-01-21 op
69 12042ad7 2021-01-21 op # auto detect lex/flex
70 12042ad7 2021-01-21 op which ${LEX} 2>/dev/null 1>&2 || {
71 12042ad7 2021-01-21 op echo "${LEX} not found: trying flex" 1>&2
72 12042ad7 2021-01-21 op echo "${LEX} not found: trying flex" 1>&3
73 12042ad7 2021-01-21 op LEX=flex
74 12042ad7 2021-01-21 op which ${LEX} 2>/dev/null 1>&2 || {
75 12042ad7 2021-01-21 op echo "${LEX} not found: giving up" 1>&2
76 12042ad7 2021-01-21 op echo "${LEX} not found: giving up" 1>&3
77 12042ad7 2021-01-21 op exit 1
78 12042ad7 2021-01-21 op }
79 12042ad7 2021-01-21 op }
80 12042ad7 2021-01-21 op
81 12042ad7 2021-01-21 op # auto detect yacc/bison
82 12042ad7 2021-01-21 op which ${YACC} 2>/dev/null 1>&2 || {
83 12042ad7 2021-01-21 op echo "${YACC} not found: trying bison" 1>&2
84 12042ad7 2021-01-21 op echo "${YACC} not found: trying bison" 1>&3
85 12042ad7 2021-01-21 op YACC=bison
86 12042ad7 2021-01-21 op which ${YACC} 2>/dev/null 1>&2 || {
87 12042ad7 2021-01-21 op echo "${YACC} not found: giving up" 1>&2
88 12042ad7 2021-01-21 op echo "${YACC} not found: giving up" 1>&3
89 12042ad7 2021-01-21 op exit 1
90 12042ad7 2021-01-21 op }
91 12042ad7 2021-01-21 op }
92 12042ad7 2021-01-21 op
93 12042ad7 2021-01-21 op # --------
94 12042ad7 2021-01-21 op # allow certain variables to be overridden on the command line
95 12042ad7 2021-01-21 op
96 12042ad7 2021-01-21 op for keyvals in "$@"; do
97 12042ad7 2021-01-21 op key=`echo $keyvals | cut -s -d '=' -f1`
98 12042ad7 2021-01-21 op if [ -z "$key" ]; then
99 12042ad7 2021-01-21 op echo "$0: invalid key-value: $keyvals" 1>&2
100 12042ad7 2021-01-21 op exit 1
101 12042ad7 2021-01-21 op fi
102 12042ad7 2021-01-21 op vals=`echo $keyvals | cut -d '=' -f 2-`
103 12042ad7 2021-01-21 op case "$key" in
104 12042ad7 2021-01-21 op BINDIR) BINDIR="$val" ;;
105 12042ad7 2021-01-21 op CC) CC="$val" ;;
106 12042ad7 2021-01-21 op CFLAGS) CFLAGS="$val" ;;
107 12042ad7 2021-01-21 op DESTDIR) DESTDIR="$val" ;;
108 12042ad7 2021-01-21 op LDFLAGS) LDFLAGS="$val" ;;
109 12042ad7 2021-01-21 op LEX) LEX="$lex" ;;
110 12042ad7 2021-01-21 op PREFIX) PREFIX="$val" ;;
111 12042ad7 2021-01-21 op YACC) YACC="$val" ;;
112 12042ad7 2021-01-21 op *)
113 12042ad7 2021-01-21 op echo "$0: invalid key: $key" 1>&2
114 12042ad7 2021-01-21 op exit 1
115 12042ad7 2021-01-21 op esac
116 12042ad7 2021-01-21 op done
117 12042ad7 2021-01-21 op
118 12042ad7 2021-01-21 op # --------
119 12042ad7 2021-01-21 op # tests functions
120 12042ad7 2021-01-21 op
121 12042ad7 2021-01-21 op # Check whether this HAVE_ setting is manually overridden.
122 12042ad7 2021-01-21 op # If yes, use the override, if no, do not decide anything yet.
123 12042ad7 2021-01-21 op # Arguments: test file name, test var name, manual value
124 12042ad7 2021-01-21 op ismanual() {
125 12042ad7 2021-01-21 op [ -z "${3}" ] && return 1
126 12042ad7 2021-01-21 op echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2
127 12042ad7 2021-01-21 op echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3
128 12042ad7 2021-01-21 op echo 1>&3
129 12042ad7 2021-01-21 op return 0
130 12042ad7 2021-01-21 op }
131 12042ad7 2021-01-21 op
132 12042ad7 2021-01-21 op # Run a single autoconfiguration test.
133 12042ad7 2021-01-21 op # In case of success, enable the feature.
134 12042ad7 2021-01-21 op # In case of failure, do not decide anything yet.
135 12042ad7 2021-01-21 op # Arguments: test file name, test var name, additional CFLAGS
136 12042ad7 2021-01-21 op singletest() {
137 12042ad7 2021-01-21 op n=${1}${3}
138 12042ad7 2021-01-21 op cat 1>&3 << __HEREDOC__
139 12042ad7 2021-01-21 op testing ${n} ...
140 12042ad7 2021-01-21 op ${COMP} -o have/${1} have/${1}.c ${3} ${LDFLAGS}
141 12042ad7 2021-01-21 op __HEREDOC__
142 12042ad7 2021-01-21 op
143 12042ad7 2021-01-21 op if ${COMP} -o "have/${1}" "have/${1}.c" ${3} ${LDFLAGS} 1>&3 2>&3
144 12042ad7 2021-01-21 op then
145 12042ad7 2021-01-21 op echo "partial result of ${n}: ${CC} succeeded" 1>&3
146 12042ad7 2021-01-21 op else
147 12042ad7 2021-01-21 op echo "tested ${n}: no (compilation failed)" 1>&2
148 12042ad7 2021-01-21 op echo "result of ${n}: ${CC} failed with exit status $?" 1>&3
149 12042ad7 2021-01-21 op echo "result of compiling ${n}: no" 1>&3
150 12042ad7 2021-01-21 op echo 1>&3
151 12042ad7 2021-01-21 op return 1
152 12042ad7 2021-01-21 op fi
153 12042ad7 2021-01-21 op
154 12042ad7 2021-01-21 op if ./have/${1} 1>&3 2>&3; then
155 12042ad7 2021-01-21 op echo "tested ${n}: yes" 1>&2
156 12042ad7 2021-01-21 op echo "result of running ${n}: yes" 1>&3
157 12042ad7 2021-01-21 op echo 1>&3
158 12042ad7 2021-01-21 op eval HAVE_${2}=1
159 12042ad7 2021-01-21 op [ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1
160 12042ad7 2021-01-21 op [ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1
161 12042ad7 2021-01-21 op [ "${3}" = "-lsocket" ] && LD_RECVMSG="-lsocket"
162 12042ad7 2021-01-21 op rm "have/${1}"
163 12042ad7 2021-01-21 op return 0
164 12042ad7 2021-01-21 op else
165 12042ad7 2021-01-21 op echo "tested ${n}: no (execution failed)" 1>&2
166 12042ad7 2021-01-21 op echo "result of ${n}: execution failed with exit status $?" 1>&3
167 12042ad7 2021-01-21 op echo "result of running ${n}: no" 1>&3
168 12042ad7 2021-01-21 op echo 1>&3
169 12042ad7 2021-01-21 op rm "have/${1}"
170 12042ad7 2021-01-21 op return 1
171 12042ad7 2021-01-21 op fi
172 12042ad7 2021-01-21 op }
173 12042ad7 2021-01-21 op
174 12042ad7 2021-01-21 op # Run a complete autoconfiguration test, including the check for
175 12042ad7 2021-01-21 op # a manual override and disabling the feature on failure.
176 12042ad7 2021-01-21 op # Arguments: test file name, test var name, additional CFLAGS
177 12042ad7 2021-01-21 op # The final argument can optionally be repeated a second time.
178 12042ad7 2021-01-21 op runtest() {
179 12042ad7 2021-01-21 op eval _manual=\${HAVE_${2}}
180 12042ad7 2021-01-21 op ismanual "${1}" "${2}" "${_manual}" && return 0
181 12042ad7 2021-01-21 op singletest "${1}" "${2}" "${3}" && return 0
182 12042ad7 2021-01-21 op [ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0
183 12042ad7 2021-01-21 op eval HAVE_${2}=0
184 12042ad7 2021-01-21 op return 1
185 12042ad7 2021-01-21 op }
186 12042ad7 2021-01-21 op
187 12042ad7 2021-01-21 op # --------
188 12042ad7 2021-01-21 op # compiler options
189 12042ad7 2021-01-21 op
190 12042ad7 2021-01-21 op DEFCFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter"
191 12042ad7 2021-01-21 op
192 12042ad7 2021-01-21 op if [ -n "${CFLAGS}" ]; then
193 12042ad7 2021-01-21 op COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
194 12042ad7 2021-01-21 op else
195 12042ad7 2021-01-21 op COMP="${CC} ${CDEFCFLAGS} -Wno-unused -Werror"
196 12042ad7 2021-01-21 op fi
197 12042ad7 2021-01-21 op echo -n "testing ${CC} -W: " 1>&2
198 12042ad7 2021-01-21 op echo -n "testing ${CC} -W: " 1>&3
199 12042ad7 2021-01-21 op runtest noop WFLAG || true
200 12042ad7 2021-01-21 op
201 12042ad7 2021-01-21 op if [ -n "${CFLAGS}" ]; then
202 12042ad7 2021-01-21 op echo "CFLAGS specified manually:" 1>&3
203 12042ad7 2021-01-21 op elif [ ${HAVE_WFLAG} -eq 0 ]; then
204 12042ad7 2021-01-21 op CFLAGS="-g"
205 12042ad7 2021-01-21 op else
206 12042ad7 2021-01-21 op CFLAGS="${DEFCFLAGS}"
207 12042ad7 2021-01-21 op fi
208 12042ad7 2021-01-21 op echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2
209 12042ad7 2021-01-21 op echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3
210 12042ad7 2021-01-21 op echo 1>&3
211 12042ad7 2021-01-21 op
212 12042ad7 2021-01-21 op COMP="${CC} ${CFLAGS}"
213 12042ad7 2021-01-21 op [ ${HAVE_WFLAG} -eq 0 ] || COMP="${COMP} -Wno-unused -Werror"
214 12042ad7 2021-01-21 op
215 12042ad7 2021-01-21 op if [ -n "${STATIC}" ]; then
216 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2
217 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3
218 12042ad7 2021-01-21 op echo 1>&3
219 12042ad7 2021-01-21 op else
220 12042ad7 2021-01-21 op runtest noop STATIC -static || true
221 12042ad7 2021-01-21 op [ ${HAVE_STATIC} -eq 0 ] || STATIC="-static"
222 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\"" 1>&2
223 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\"" 1>&3
224 12042ad7 2021-01-21 op echo 1>&3
225 12042ad7 2021-01-21 op fi
226 12042ad7 2021-01-21 op
227 12042ad7 2021-01-21 op # --------
228 12042ad7 2021-01-21 op # tests for config.h
229 12042ad7 2021-01-21 op
230 12042ad7 2021-01-21 op runtest err ERR || true
231 12042ad7 2021-01-21 op runtest libtls LIBTLS || true
232 12042ad7 2021-01-21 op runtest strlcat STRLCAT || true
233 12042ad7 2021-01-21 op runtest strlcpy STRLCPY || true
234 12042ad7 2021-01-21 op runtest vasprintf VASPRINTF "" -D_GNU_SOURCE || true
235 12042ad7 2021-01-21 op
236 12042ad7 2021-01-21 op if [ ${HAVE_LIBTLS} -eq 0 ]; then
237 12042ad7 2021-01-21 op echo "FATAL: libtls not found" 1>&2
238 12042ad7 2021-01-21 op echo "FATAL: libtls not found" 1>&3
239 12042ad7 2021-01-21 op exit 1
240 12042ad7 2021-01-21 op fi
241 12042ad7 2021-01-21 op
242 12042ad7 2021-01-21 op # --------
243 12042ad7 2021-01-21 op # write config.h
244 12042ad7 2021-01-21 op
245 12042ad7 2021-01-21 op exec > config.h
246 12042ad7 2021-01-21 op
247 12042ad7 2021-01-21 op cat <<__HEREDOC__
248 12042ad7 2021-01-21 op #ifdef __cplusplus
249 12042ad7 2021-01-21 op #error "Do not use C++."
250 12042ad7 2021-01-21 op #endif
251 12042ad7 2021-01-21 op
252 12042ad7 2021-01-21 op __HEREDOC__
253 12042ad7 2021-01-21 op
254 12042ad7 2021-01-21 op [ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
255 12042ad7 2021-01-21 op [ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE"
256 12042ad7 2021-01-21 op
257 12042ad7 2021-01-21 op [ ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 ] \
258 12042ad7 2021-01-21 op && echo "#include <sys/types.h>"
259 12042ad7 2021-01-21 op [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
260 12042ad7 2021-01-21 op
261 12042ad7 2021-01-21 op cat <<__HEREDOC__
262 12042ad7 2021-01-21 op
263 12042ad7 2021-01-21 op #define HAVE_ERR ${HAVE_ERR}
264 12042ad7 2021-01-21 op #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
265 12042ad7 2021-01-21 op #define HAVE_STRLCAT ${HAVE_STRLCAT}
266 12042ad7 2021-01-21 op #define HAVE_STRLCPY ${HAVE_STRLCPY}
267 12042ad7 2021-01-21 op #define HAVE_VASPRINTF ${HAVE_VASPRINTF}
268 12042ad7 2021-01-21 op
269 12042ad7 2021-01-21 op __HEREDOC__
270 12042ad7 2021-01-21 op
271 12042ad7 2021-01-21 op if [ ${HAVE_ERR} -eq 0 ]; then
272 12042ad7 2021-01-21 op echo "extern void err(int, const char*, ...);"
273 12042ad7 2021-01-21 op echo "extern void errx(int, const char*, ...);"
274 12042ad7 2021-01-21 op echo "extern void warn(const char*, ...);"
275 12042ad7 2021-01-21 op echo "extern void warnx(const char*, ...);"
276 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/err.o"
277 12042ad7 2021-01-21 op fi
278 12042ad7 2021-01-21 op
279 12042ad7 2021-01-21 op if [ ${HAVE_STRLCAT} -eq 0 ]; then
280 12042ad7 2021-01-21 op echo "extern size_t strlcat(char*, const char*, size_t);"
281 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/strlcat.o"
282 12042ad7 2021-01-21 op fi
283 12042ad7 2021-01-21 op if [ ${HAVE_STRLCPY} -eq 0 ]; then
284 12042ad7 2021-01-21 op echo "extern size_t strlcpy(char*, const char*, size_t);"
285 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/strlcpy.o"
286 12042ad7 2021-01-21 op fi
287 12042ad7 2021-01-21 op if [ ${HAVE_VASPRINTF} -eq 0 ]; then
288 12042ad7 2021-01-21 op echo "extern int vasprintf(char**, const char*, va_list);"
289 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/vasprintf.o"
290 12042ad7 2021-01-21 op fi
291 12042ad7 2021-01-21 op echo "file config.h: written" 1>&2
292 12042ad7 2021-01-21 op echo "file config.h: written" 1>&3
293 12042ad7 2021-01-21 op
294 12042ad7 2021-01-21 op # --------
295 12042ad7 2021-01-21 op # tests for Makefile.local
296 12042ad7 2021-01-21 op
297 12042ad7 2021-01-21 op exec > Makefile.local
298 12042ad7 2021-01-21 op
299 12042ad7 2021-01-21 op [ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"
300 12042ad7 2021-01-21 op [ -z "${MANDIR}" ] && MANDIR="${PREFIX}/man"
301 12042ad7 2021-01-21 op
302 12042ad7 2021-01-21 op [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
303 12042ad7 2021-01-21 op [ -z "${INSTALL_LIB}" ] && INSTALL_LIB="${INSTALL} -m 0444"
304 12042ad7 2021-01-21 op [ -z "${INSTALL_MAN}" ] && INSTALL_MAN="${INSTALL} -m 0444"
305 12042ad7 2021-01-21 op [ -z "${INSTALL_DATA}" ] && INSTALL_DATA="${INSTALL} -m 0444"
306 12042ad7 2021-01-21 op
307 12042ad7 2021-01-21 op cat << __HEREDOC__
308 12042ad7 2021-01-21 op CC = ${CC}
309 12042ad7 2021-01-21 op CFLAGS = ${CFLAGS}
310 12042ad7 2021-01-21 op LDFLAGS = ${LDFLAGS}
311 12042ad7 2021-01-21 op YACC = ${YACC}
312 12042ad7 2021-01-21 op LEX = ${LEX}
313 12042ad7 2021-01-21 op COMPAT = ${COMPAT}
314 12042ad7 2021-01-21 op STATIC = ${STATIC}
315 12042ad7 2021-01-21 op PREFIX = ${PREFIX}
316 12042ad7 2021-01-21 op BINDIR = ${BINDIR}
317 12042ad7 2021-01-21 op INCLUDEDIR = ${INCLUDEDIR}
318 12042ad7 2021-01-21 op INSTALL = ${INSTALL}
319 12042ad7 2021-01-21 op INSTALL_PROGRAM = ${INSTALL_PROGRAM}
320 12042ad7 2021-01-21 op INSTALL_LIB = ${INSTALL_LIB}
321 12042ad7 2021-01-21 op INSTALL_MAN = ${INSTALL_MAN}
322 12042ad7 2021-01-21 op INSTALL_DATA = ${INSTALL_DATA}
323 12042ad7 2021-01-21 op __HEREDOC__
324 12042ad7 2021-01-21 op
325 12042ad7 2021-01-21 op echo "file Makefile.local: written" 1>&2
326 12042ad7 2021-01-21 op echo "file Makefile.local: written" 1>&3
327 12042ad7 2021-01-21 op
328 12042ad7 2021-01-21 op exit 0