3 12042ad7 2021-01-21 op # Copyright (c) 2021 Omar Polo <op@omarpolo.com>
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.
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.
17 12042ad7 2021-01-21 op # adapted from mandoc configure and oconfigure, thanks schwarze@ and
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
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
30 12042ad7 2021-01-21 op exec 3> config.log
31 12042ad7 2021-01-21 op echo "file config.log: writing..."
34 12042ad7 2021-01-21 op # default settings: initialize all vars here
44 5c342d05 2021-01-21 op HAVE_EXPLICIT_BZERO=
45 12042ad7 2021-01-21 op HAVE_GETPROGNAME=
47 5c342d05 2021-01-21 op HAVE_RECALLOCARRAY=
50 5c342d05 2021-01-21 op HAVE_STRTONUM=
51 12042ad7 2021-01-21 op HAVE_VASPRINTF=
53 12042ad7 2021-01-21 op NEED_GNU_SOURCE=0
54 12042ad7 2021-01-21 op NEED_OPENBSD_SOURCE=0
56 12042ad7 2021-01-21 op PREFIX="/usr/local"
59 12042ad7 2021-01-21 op INSTALL="install"
61 12042ad7 2021-01-21 op # try to auto detect CFLAGS and LDFLAGS
62 86939cb4 2021-01-21 op if which pkg-config 2>/dev/null 1>&2 && pkg-config libtls; then
63 86939cb4 2021-01-21 op CFLAGS=`pkg-config --cflags libtls`
64 86939cb4 2021-01-21 op LDFLAGS=`pkg-config --libs libtls`
67 12042ad7 2021-01-21 op # auto detect lex/flex
68 12042ad7 2021-01-21 op which ${LEX} 2>/dev/null 1>&2 || {
69 12042ad7 2021-01-21 op echo "${LEX} not found: trying flex" 1>&2
70 12042ad7 2021-01-21 op echo "${LEX} not found: trying flex" 1>&3
72 12042ad7 2021-01-21 op which ${LEX} 2>/dev/null 1>&2 || {
73 12042ad7 2021-01-21 op echo "${LEX} not found: giving up" 1>&2
74 12042ad7 2021-01-21 op echo "${LEX} not found: giving up" 1>&3
79 12042ad7 2021-01-21 op # auto detect yacc/bison
80 12042ad7 2021-01-21 op which ${YACC} 2>/dev/null 1>&2 || {
81 12042ad7 2021-01-21 op echo "${YACC} not found: trying bison" 1>&2
82 12042ad7 2021-01-21 op echo "${YACC} not found: trying bison" 1>&3
84 12042ad7 2021-01-21 op which ${YACC} 2>/dev/null 1>&2 || {
85 12042ad7 2021-01-21 op echo "${YACC} not found: giving up" 1>&2
86 12042ad7 2021-01-21 op echo "${YACC} not found: giving up" 1>&3
92 12042ad7 2021-01-21 op # allow certain variables to be overridden on the command line
94 12042ad7 2021-01-21 op for keyvals in "$@"; do
95 12042ad7 2021-01-21 op key=`echo $keyvals | cut -s -d '=' -f1`
96 12042ad7 2021-01-21 op if [ -z "$key" ]; then
97 12042ad7 2021-01-21 op echo "$0: invalid key-value: $keyvals" 1>&2
100 597ddf6c 2021-01-21 op val=`echo $keyvals | cut -d '=' -f 2-`
101 12042ad7 2021-01-21 op case "$key" in
102 12042ad7 2021-01-21 op BINDIR) BINDIR="$val" ;;
103 12042ad7 2021-01-21 op CC) CC="$val" ;;
104 12042ad7 2021-01-21 op CFLAGS) CFLAGS="$val" ;;
105 12042ad7 2021-01-21 op DESTDIR) DESTDIR="$val" ;;
106 12042ad7 2021-01-21 op LDFLAGS) LDFLAGS="$val" ;;
107 12042ad7 2021-01-21 op LEX) LEX="$lex" ;;
108 12042ad7 2021-01-21 op PREFIX) PREFIX="$val" ;;
109 12042ad7 2021-01-21 op YACC) YACC="$val" ;;
111 12042ad7 2021-01-21 op echo "$0: invalid key: $key" 1>&2
117 12042ad7 2021-01-21 op # tests functions
119 12042ad7 2021-01-21 op # Check whether this HAVE_ setting is manually overridden.
120 12042ad7 2021-01-21 op # If yes, use the override, if no, do not decide anything yet.
121 12042ad7 2021-01-21 op # Arguments: test file name, test var name, manual value
123 12042ad7 2021-01-21 op [ -z "${3}" ] && return 1
124 12042ad7 2021-01-21 op echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2
125 12042ad7 2021-01-21 op echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3
130 12042ad7 2021-01-21 op # Run a single autoconfiguration test.
131 12042ad7 2021-01-21 op # In case of success, enable the feature.
132 12042ad7 2021-01-21 op # In case of failure, do not decide anything yet.
133 12042ad7 2021-01-21 op # Arguments: test file name, test var name, additional CFLAGS
134 12042ad7 2021-01-21 op singletest() {
136 12042ad7 2021-01-21 op cat 1>&3 << __HEREDOC__
137 12042ad7 2021-01-21 op testing ${n} ...
138 12042ad7 2021-01-21 op ${COMP} -o have/${1} have/${1}.c ${3} ${LDFLAGS}
141 12042ad7 2021-01-21 op if ${COMP} -o "have/${1}" "have/${1}.c" ${3} ${LDFLAGS} 1>&3 2>&3
143 12042ad7 2021-01-21 op echo "partial result of ${n}: ${CC} succeeded" 1>&3
145 12042ad7 2021-01-21 op echo "tested ${n}: no (compilation failed)" 1>&2
146 12042ad7 2021-01-21 op echo "result of ${n}: ${CC} failed with exit status $?" 1>&3
147 12042ad7 2021-01-21 op echo "result of compiling ${n}: no" 1>&3
152 12042ad7 2021-01-21 op if ./have/${1} 1>&3 2>&3; then
153 12042ad7 2021-01-21 op echo "tested ${n}: yes" 1>&2
154 12042ad7 2021-01-21 op echo "result of running ${n}: yes" 1>&3
156 12042ad7 2021-01-21 op eval HAVE_${2}=1
157 12042ad7 2021-01-21 op [ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1
158 12042ad7 2021-01-21 op [ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1
159 12042ad7 2021-01-21 op [ "${3}" = "-lsocket" ] && LD_RECVMSG="-lsocket"
160 12042ad7 2021-01-21 op rm "have/${1}"
163 12042ad7 2021-01-21 op echo "tested ${n}: no (execution failed)" 1>&2
164 12042ad7 2021-01-21 op echo "result of ${n}: execution failed with exit status $?" 1>&3
165 12042ad7 2021-01-21 op echo "result of running ${n}: no" 1>&3
167 12042ad7 2021-01-21 op rm "have/${1}"
172 12042ad7 2021-01-21 op # Run a complete autoconfiguration test, including the check for
173 12042ad7 2021-01-21 op # a manual override and disabling the feature on failure.
174 12042ad7 2021-01-21 op # Arguments: test file name, test var name, additional CFLAGS
175 12042ad7 2021-01-21 op # The final argument can optionally be repeated a second time.
177 12042ad7 2021-01-21 op eval _manual=\${HAVE_${2}}
178 12042ad7 2021-01-21 op ismanual "${1}" "${2}" "${_manual}" && return 0
179 12042ad7 2021-01-21 op singletest "${1}" "${2}" "${3}" && return 0
180 12042ad7 2021-01-21 op [ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0
181 12042ad7 2021-01-21 op eval HAVE_${2}=0
186 12042ad7 2021-01-21 op # compiler options
188 12042ad7 2021-01-21 op DEFCFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter"
190 12042ad7 2021-01-21 op if [ -n "${CFLAGS}" ]; then
191 12042ad7 2021-01-21 op COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
193 12042ad7 2021-01-21 op COMP="${CC} ${CDEFCFLAGS} -Wno-unused -Werror"
195 12042ad7 2021-01-21 op echo -n "testing ${CC} -W: " 1>&2
196 12042ad7 2021-01-21 op echo -n "testing ${CC} -W: " 1>&3
197 12042ad7 2021-01-21 op runtest noop WFLAG || true
199 12042ad7 2021-01-21 op if [ -n "${CFLAGS}" ]; then
200 12042ad7 2021-01-21 op echo "CFLAGS specified manually:" 1>&3
201 12042ad7 2021-01-21 op elif [ ${HAVE_WFLAG} -eq 0 ]; then
204 12042ad7 2021-01-21 op CFLAGS="${DEFCFLAGS}"
206 12042ad7 2021-01-21 op echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2
207 12042ad7 2021-01-21 op echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3
210 12042ad7 2021-01-21 op COMP="${CC} ${CFLAGS}"
211 12042ad7 2021-01-21 op [ ${HAVE_WFLAG} -eq 0 ] || COMP="${COMP} -Wno-unused -Werror"
213 12042ad7 2021-01-21 op if [ -n "${STATIC}" ]; then
214 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2
215 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3
218 12042ad7 2021-01-21 op runtest noop STATIC -static || true
219 12042ad7 2021-01-21 op [ ${HAVE_STATIC} -eq 0 ] || STATIC="-static"
220 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\"" 1>&2
221 12042ad7 2021-01-21 op echo "selected STATIC=\"${STATIC}\"" 1>&3
226 12042ad7 2021-01-21 op # tests for config.h
228 12042ad7 2021-01-21 op runtest err ERR || true
229 5c342d05 2021-01-21 op runtest explicit_bzero EXPLICIT_BZERO || true
230 2d7abb70 2021-01-21 op runtest getprogname GETPROGNAME || true
231 12042ad7 2021-01-21 op runtest libtls LIBTLS || true
232 5c342d05 2021-01-21 op runtest recallocarray RECALLOCARRAY || true
233 12042ad7 2021-01-21 op runtest strlcat STRLCAT || true
234 12042ad7 2021-01-21 op runtest strlcpy STRLCPY || true
235 5c342d05 2021-01-21 op runtest strtonum STRTONUM || true
236 12042ad7 2021-01-21 op runtest vasprintf VASPRINTF "" -D_GNU_SOURCE || true
238 12042ad7 2021-01-21 op if [ ${HAVE_LIBTLS} -eq 0 ]; then
239 12042ad7 2021-01-21 op echo "FATAL: libtls not found" 1>&2
240 12042ad7 2021-01-21 op echo "FATAL: libtls not found" 1>&3
245 12042ad7 2021-01-21 op # write config.h
247 12042ad7 2021-01-21 op exec > config.h
249 12042ad7 2021-01-21 op cat <<__HEREDOC__
250 12042ad7 2021-01-21 op #ifdef __cplusplus
251 12042ad7 2021-01-21 op #error "Do not use C++."
255 12042ad7 2021-01-21 op [ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
256 12042ad7 2021-01-21 op [ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE"
258 12042ad7 2021-01-21 op [ ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 ] \
259 12042ad7 2021-01-21 op && echo "#include <sys/types.h>"
260 12042ad7 2021-01-21 op [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
262 12042ad7 2021-01-21 op cat <<__HEREDOC__
264 12042ad7 2021-01-21 op #define HAVE_ERR ${HAVE_ERR}
265 5c342d05 2021-01-21 op #define HAVE_EXPLICIT_BZERO ${HAVE_EXPLICIT_BZERO}
266 12042ad7 2021-01-21 op #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
267 5c342d05 2021-01-21 op #define HAVE_RECALLOCARRAY ${HAVE_RECALLOCARRAY}
268 12042ad7 2021-01-21 op #define HAVE_STRLCAT ${HAVE_STRLCAT}
269 12042ad7 2021-01-21 op #define HAVE_STRLCPY ${HAVE_STRLCPY}
270 5c342d05 2021-01-21 op #define HAVE_STRTONUM ${HAVE_STRTONUM}
271 12042ad7 2021-01-21 op #define HAVE_VASPRINTF ${HAVE_VASPRINTF}
275 7e262563 2021-01-22 op [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
277 7e262563 2021-01-22 op [ ${HAVE_EXPLICIT_BZERO} -eq 0 -o \
278 7e262563 2021-01-22 op ${HAVE_RECALLOCARRAY} -eq 0 -o \
279 7e262563 2021-01-22 op ${HAVE_STRLCAT} -eq 0 -o \
280 7e262563 2021-01-22 op ${HAVE_STRLCPY} -eq 0 -o \
281 7e262563 2021-01-22 op ${HAVE_STRTONUM} -eq 0 ] && echo "#include <stddef.h>"
283 12042ad7 2021-01-21 op if [ ${HAVE_ERR} -eq 0 ]; then
284 12042ad7 2021-01-21 op echo "extern void err(int, const char*, ...);"
285 12042ad7 2021-01-21 op echo "extern void errx(int, const char*, ...);"
286 12042ad7 2021-01-21 op echo "extern void warn(const char*, ...);"
287 12042ad7 2021-01-21 op echo "extern void warnx(const char*, ...);"
288 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/err.o"
290 2d7abb70 2021-01-21 op echo "#include <err.h>"
292 5c342d05 2021-01-21 op if [ ${HAVE_EXPLICIT_BZERO} -eq 0 ]; then
293 5c342d05 2021-01-21 op echo "extern void explicit_bzero(void*, size_t);"
294 5c342d05 2021-01-21 op COMPAT="${COMPAT} compat/explicit_bzero.o"
296 5c342d05 2021-01-21 op if [ ${HAVE_RECALLOCARRAY} -eq 0 ]; then
297 5c342d05 2021-01-21 op echo "extern void* recallocarray(void*, size_t, size_t, size_t);"
298 5c342d05 2021-01-21 op COMPAT="${COMPAT} compat/recallocarray.o"
300 12042ad7 2021-01-21 op if [ ${HAVE_STRLCAT} -eq 0 ]; then
301 12042ad7 2021-01-21 op echo "extern size_t strlcat(char*, const char*, size_t);"
302 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/strlcat.o"
304 12042ad7 2021-01-21 op if [ ${HAVE_STRLCPY} -eq 0 ]; then
305 12042ad7 2021-01-21 op echo "extern size_t strlcpy(char*, const char*, size_t);"
306 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/strlcpy.o"
308 5c342d05 2021-01-21 op if [ ${HAVE_STRTONUM} -eq 0 ]; then
309 3527b7a5 2021-01-22 op echo "extern long long strtonum(const char*, long long, long long, const char**);"
310 5c342d05 2021-01-21 op COMPAT="${COMPAT} compat/strtonum.o"
312 12042ad7 2021-01-21 op if [ ${HAVE_VASPRINTF} -eq 0 ]; then
313 12042ad7 2021-01-21 op echo "extern int vasprintf(char**, const char*, va_list);"
314 12042ad7 2021-01-21 op COMPAT="${COMPAT} compat/vasprintf.o"
316 12042ad7 2021-01-21 op echo "file config.h: written" 1>&2
317 12042ad7 2021-01-21 op echo "file config.h: written" 1>&3
320 12042ad7 2021-01-21 op # tests for Makefile.local
322 12042ad7 2021-01-21 op exec > Makefile.local
324 12042ad7 2021-01-21 op [ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"
325 12042ad7 2021-01-21 op [ -z "${MANDIR}" ] && MANDIR="${PREFIX}/man"
327 12042ad7 2021-01-21 op [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
328 12042ad7 2021-01-21 op [ -z "${INSTALL_LIB}" ] && INSTALL_LIB="${INSTALL} -m 0444"
329 12042ad7 2021-01-21 op [ -z "${INSTALL_MAN}" ] && INSTALL_MAN="${INSTALL} -m 0444"
330 12042ad7 2021-01-21 op [ -z "${INSTALL_DATA}" ] && INSTALL_DATA="${INSTALL} -m 0444"
332 12042ad7 2021-01-21 op cat << __HEREDOC__
334 12042ad7 2021-01-21 op CFLAGS = ${CFLAGS}
335 12042ad7 2021-01-21 op LDFLAGS = ${LDFLAGS}
336 12042ad7 2021-01-21 op YACC = ${YACC}
338 12042ad7 2021-01-21 op COMPAT = ${COMPAT}
339 12042ad7 2021-01-21 op STATIC = ${STATIC}
340 12042ad7 2021-01-21 op PREFIX = ${PREFIX}
341 12042ad7 2021-01-21 op BINDIR = ${BINDIR}
342 12042ad7 2021-01-21 op INCLUDEDIR = ${INCLUDEDIR}
343 12042ad7 2021-01-21 op INSTALL = ${INSTALL}
344 12042ad7 2021-01-21 op INSTALL_PROGRAM = ${INSTALL_PROGRAM}
345 12042ad7 2021-01-21 op INSTALL_LIB = ${INSTALL_LIB}
346 12042ad7 2021-01-21 op INSTALL_MAN = ${INSTALL_MAN}
347 12042ad7 2021-01-21 op INSTALL_DATA = ${INSTALL_DATA}
350 12042ad7 2021-01-21 op echo "file Makefile.local: written" 1>&2
351 12042ad7 2021-01-21 op echo "file Makefile.local: written" 1>&3