3 # Copyright (c) 2021 Omar Polo <op@omarpolo.com>
5 # Permission to use, copy, modify, and distribute this software for any
6 # purpose with or without fee is hereby granted, provided that the above
7 # copyright notice and this permission notice appear in all copies.
9 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 # adapted from mandoc configure and oconfigure, thanks schwarze@ and
22 [ -w config.log ] && mv config.log config.log.old
23 [ -w config.h ] && mv config.h config.h.old
25 # Output file descriptor usage:
26 # 1 (stdout): config.h, Makefile.local
27 # 2 (stderr): original stderr, usually to the console
31 echo "file config.log: writing..."
34 # default settings: initialize all vars here
58 # try to auto detect CFLAGS and LDFLAGS
59 which pkg-config 2>/dev/null 1>&2 && {
60 if ! got=`pkg-config --cflags libtls`; then
64 if ! got=`pkg-config --libs libtls`; then
69 # auto detect lex/flex
70 which ${LEX} 2>/dev/null 1>&2 || {
71 echo "${LEX} not found: trying flex" 1>&2
72 echo "${LEX} not found: trying flex" 1>&3
74 which ${LEX} 2>/dev/null 1>&2 || {
75 echo "${LEX} not found: giving up" 1>&2
76 echo "${LEX} not found: giving up" 1>&3
81 # auto detect yacc/bison
82 which ${YACC} 2>/dev/null 1>&2 || {
83 echo "${YACC} not found: trying bison" 1>&2
84 echo "${YACC} not found: trying bison" 1>&3
86 which ${YACC} 2>/dev/null 1>&2 || {
87 echo "${YACC} not found: giving up" 1>&2
88 echo "${YACC} not found: giving up" 1>&3
94 # allow certain variables to be overridden on the command line
96 for keyvals in "$@"; do
97 key=`echo $keyvals | cut -s -d '=' -f1`
98 if [ -z "$key" ]; then
99 echo "$0: invalid key-value: $keyvals" 1>&2
102 val=`echo $keyvals | cut -d '=' -f 2-`
104 BINDIR) BINDIR="$val" ;;
106 CFLAGS) CFLAGS="$val" ;;
107 DESTDIR) DESTDIR="$val" ;;
108 LDFLAGS) LDFLAGS="$val" ;;
110 PREFIX) PREFIX="$val" ;;
113 echo "$0: invalid key: $key" 1>&2
121 # Check whether this HAVE_ setting is manually overridden.
122 # If yes, use the override, if no, do not decide anything yet.
123 # Arguments: test file name, test var name, manual value
125 [ -z "${3}" ] && return 1
126 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2
127 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3
132 # Run a single autoconfiguration test.
133 # In case of success, enable the feature.
134 # In case of failure, do not decide anything yet.
135 # Arguments: test file name, test var name, additional CFLAGS
138 cat 1>&3 << __HEREDOC__
140 ${COMP} -o have/${1} have/${1}.c ${3} ${LDFLAGS}
143 if ${COMP} -o "have/${1}" "have/${1}.c" ${3} ${LDFLAGS} 1>&3 2>&3
145 echo "partial result of ${n}: ${CC} succeeded" 1>&3
147 echo "tested ${n}: no (compilation failed)" 1>&2
148 echo "result of ${n}: ${CC} failed with exit status $?" 1>&3
149 echo "result of compiling ${n}: no" 1>&3
154 if ./have/${1} 1>&3 2>&3; then
155 echo "tested ${n}: yes" 1>&2
156 echo "result of running ${n}: yes" 1>&3
159 [ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1
160 [ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1
161 [ "${3}" = "-lsocket" ] && LD_RECVMSG="-lsocket"
165 echo "tested ${n}: no (execution failed)" 1>&2
166 echo "result of ${n}: execution failed with exit status $?" 1>&3
167 echo "result of running ${n}: no" 1>&3
174 # Run a complete autoconfiguration test, including the check for
175 # a manual override and disabling the feature on failure.
176 # Arguments: test file name, test var name, additional CFLAGS
177 # The final argument can optionally be repeated a second time.
179 eval _manual=\${HAVE_${2}}
180 ismanual "${1}" "${2}" "${_manual}" && return 0
181 singletest "${1}" "${2}" "${3}" && return 0
182 [ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0
190 DEFCFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter"
192 if [ -n "${CFLAGS}" ]; then
193 COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
195 COMP="${CC} ${CDEFCFLAGS} -Wno-unused -Werror"
197 echo -n "testing ${CC} -W: " 1>&2
198 echo -n "testing ${CC} -W: " 1>&3
199 runtest noop WFLAG || true
201 if [ -n "${CFLAGS}" ]; then
202 echo "CFLAGS specified manually:" 1>&3
203 elif [ ${HAVE_WFLAG} -eq 0 ]; then
206 CFLAGS="${DEFCFLAGS}"
208 echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2
209 echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3
212 COMP="${CC} ${CFLAGS}"
213 [ ${HAVE_WFLAG} -eq 0 ] || COMP="${COMP} -Wno-unused -Werror"
215 if [ -n "${STATIC}" ]; then
216 echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2
217 echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3
220 runtest noop STATIC -static || true
221 [ ${HAVE_STATIC} -eq 0 ] || STATIC="-static"
222 echo "selected STATIC=\"${STATIC}\"" 1>&2
223 echo "selected STATIC=\"${STATIC}\"" 1>&3
230 runtest err ERR || true
231 runtest libtls LIBTLS || true
232 runtest strlcat STRLCAT || true
233 runtest strlcpy STRLCPY || true
234 runtest vasprintf VASPRINTF "" -D_GNU_SOURCE || true
236 if [ ${HAVE_LIBTLS} -eq 0 ]; then
237 echo "FATAL: libtls not found" 1>&2
238 echo "FATAL: libtls not found" 1>&3
249 #error "Do not use C++."
254 [ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
255 [ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE"
257 [ ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 ] \
258 && echo "#include <sys/types.h>"
259 [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
263 #define HAVE_ERR ${HAVE_ERR}
264 #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
265 #define HAVE_STRLCAT ${HAVE_STRLCAT}
266 #define HAVE_STRLCPY ${HAVE_STRLCPY}
267 #define HAVE_VASPRINTF ${HAVE_VASPRINTF}
271 if [ ${HAVE_ERR} -eq 0 ]; then
272 echo "extern void err(int, const char*, ...);"
273 echo "extern void errx(int, const char*, ...);"
274 echo "extern void warn(const char*, ...);"
275 echo "extern void warnx(const char*, ...);"
276 COMPAT="${COMPAT} compat/err.o"
279 if [ ${HAVE_STRLCAT} -eq 0 ]; then
280 echo "extern size_t strlcat(char*, const char*, size_t);"
281 COMPAT="${COMPAT} compat/strlcat.o"
283 if [ ${HAVE_STRLCPY} -eq 0 ]; then
284 echo "extern size_t strlcpy(char*, const char*, size_t);"
285 COMPAT="${COMPAT} compat/strlcpy.o"
287 if [ ${HAVE_VASPRINTF} -eq 0 ]; then
288 echo "extern int vasprintf(char**, const char*, va_list);"
289 COMPAT="${COMPAT} compat/vasprintf.o"
291 echo "file config.h: written" 1>&2
292 echo "file config.h: written" 1>&3
295 # tests for Makefile.local
297 exec > Makefile.local
299 [ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"
300 [ -z "${MANDIR}" ] && MANDIR="${PREFIX}/man"
302 [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
303 [ -z "${INSTALL_LIB}" ] && INSTALL_LIB="${INSTALL} -m 0444"
304 [ -z "${INSTALL_MAN}" ] && INSTALL_MAN="${INSTALL} -m 0444"
305 [ -z "${INSTALL_DATA}" ] && INSTALL_DATA="${INSTALL} -m 0444"
317 INCLUDEDIR = ${INCLUDEDIR}
319 INSTALL_PROGRAM = ${INSTALL_PROGRAM}
320 INSTALL_LIB = ${INSTALL_LIB}
321 INSTALL_MAN = ${INSTALL_MAN}
322 INSTALL_DATA = ${INSTALL_DATA}
325 echo "file Makefile.local: written" 1>&2
326 echo "file Makefile.local: written" 1>&3