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
62 # try to auto detect CFLAGS and LDFLAGS
63 if which pkg-config 2>/dev/null 1>&2; then
64 if pkg-config libtls; then
65 CFLAGS="$(pkg-config --cflags libtls)"
66 LDFLAGS="$(pkg-config --libs libtls)"
68 if pkg-config openssl; then
69 CFLAGS="${CFLAGS} $(pkg-config --cflags openssl)"
70 LDFLAGS="${LDFLAGS} $(pkg-config --libs openssl)"
74 # auto detect lex/flex
75 which ${LEX} 2>/dev/null 1>&2 || {
76 echo "${LEX} not found: trying flex" 1>&2
77 echo "${LEX} not found: trying flex" 1>&3
79 which ${LEX} 2>/dev/null 1>&2 || {
80 echo "${LEX} not found: giving up" 1>&2
81 echo "${LEX} not found: giving up" 1>&3
86 # auto detect yacc/bison
87 which ${YACC} 2>/dev/null 1>&2 || {
88 echo "${YACC} not found: trying bison" 1>&2
89 echo "${YACC} not found: trying bison" 1>&3
91 which ${YACC} 2>/dev/null 1>&2 || {
92 echo "${YACC} not found: giving up" 1>&2
93 echo "${YACC} not found: giving up" 1>&3
99 # allow certain variables to be overridden on the command line
101 for keyvals in "$@"; do
102 key=`echo $keyvals | cut -s -d '=' -f1`
103 if [ -z "$key" ]; then
104 echo "$0: invalid key-value: $keyvals" 1>&2
107 val=`echo $keyvals | cut -d '=' -f 2-`
109 BINDIR) BINDIR="$val" ;;
111 CFLAGS) CFLAGS="$val" ;;
112 DESTDIR) DESTDIR="$val" ;;
113 LDFLAGS) LDFLAGS="$val" ;;
115 PREFIX) PREFIX="$val" ;;
118 echo "$0: invalid key: $key" 1>&2
126 # Check whether this HAVE_ setting is manually overridden.
127 # If yes, use the override, if no, do not decide anything yet.
128 # Arguments: test file name, test var name, manual value
130 [ -z "${3}" ] && return 1
131 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2
132 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3
137 # Run a single autoconfiguration test.
138 # In case of success, enable the feature.
139 # In case of failure, do not decide anything yet.
140 # Arguments: test file name, test var name, additional CFLAGS
143 cat 1>&3 << __HEREDOC__
145 ${COMP} -o have/${1} have/${1}.c ${3} ${LDFLAGS}
148 if ${COMP} -o "have/${1}" "have/${1}.c" ${3} ${LDFLAGS} 1>&3 2>&3
150 echo "partial result of ${n}: ${CC} succeeded" 1>&3
152 echo "tested ${n}: no (compilation failed)" 1>&2
153 echo "result of ${n}: ${CC} failed with exit status $?" 1>&3
154 echo "result of compiling ${n}: no" 1>&3
159 if ./have/${1} 1>&3 2>&3; then
160 echo "tested ${n}: yes" 1>&2
161 echo "result of running ${n}: yes" 1>&3
164 [ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1
165 [ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1
166 [ "${3}" = "-lsocket" ] && LD_RECVMSG="-lsocket"
170 echo "tested ${n}: no (execution failed)" 1>&2
171 echo "result of ${n}: execution failed with exit status $?" 1>&3
172 echo "result of running ${n}: no" 1>&3
179 # Run a complete autoconfiguration test, including the check for
180 # a manual override and disabling the feature on failure.
181 # Arguments: test file name, test var name, additional CFLAGS
182 # The final argument can optionally be repeated a second time.
184 eval _manual=\${HAVE_${2}}
185 ismanual "${1}" "${2}" "${_manual}" && return 0
186 singletest "${1}" "${2}" "${3}" && return 0
187 [ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0
195 DEFCFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter"
197 if [ -n "${CFLAGS}" ]; then
198 COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
200 COMP="${CC} ${CDEFCFLAGS} -Wno-unused -Werror"
202 echo -n "testing ${CC} -W: " 1>&2
203 echo -n "testing ${CC} -W: " 1>&3
204 runtest noop WFLAG || true
206 if [ -n "${CFLAGS}" ]; then
207 echo "CFLAGS specified manually:" 1>&3
208 elif [ ${HAVE_WFLAG} -eq 0 ]; then
211 CFLAGS="${DEFCFLAGS}"
213 echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2
214 echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3
217 COMP="${CC} ${CFLAGS}"
218 [ ${HAVE_WFLAG} -eq 0 ] || COMP="${COMP} -Wno-unused -Werror"
220 if [ -n "${STATIC}" ]; then
221 echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2
222 echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3
225 runtest noop STATIC -static || true
226 [ ${HAVE_STATIC} -eq 0 ] || STATIC="-static"
227 echo "selected STATIC=\"${STATIC}\"" 1>&2
228 echo "selected STATIC=\"${STATIC}\"" 1>&3
235 runtest err ERR || true
236 runtest explicit_bzero EXPLICIT_BZERO || true
237 runtest getprogname GETPROGNAME || true
238 runtest libtls LIBTLS || true
239 runtest openssl OPENSSL || true
240 runtest recallocarray RECALLOCARRAY || true
241 runtest strlcat STRLCAT || true
242 runtest strlcpy STRLCPY || true
243 runtest strtonum STRTONUM || true
244 runtest vasprintf VASPRINTF "" -D_GNU_SOURCE || true
246 if [ ${HAVE_LIBTLS} -eq 0 ]; then
247 echo "FATAL: libtls not found" 1>&2
248 echo "FATAL: libtls not found" 1>&3
252 if [ ${HAVE_OPENSSL} -eq 0 ]; then
253 echo "FATAL: openssl not found" 1>&2
254 echo "FATAL: openssl not found" 1>&3
265 #error "Do not use C++."
269 [ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
270 [ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE"
272 [ ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 ] \
273 && echo "#include <sys/types.h>"
274 [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
278 #define HAVE_ERR ${HAVE_ERR}
279 #define HAVE_EXPLICIT_BZERO ${HAVE_EXPLICIT_BZERO}
280 #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
281 #define HAVE_RECALLOCARRAY ${HAVE_RECALLOCARRAY}
282 #define HAVE_STRLCAT ${HAVE_STRLCAT}
283 #define HAVE_STRLCPY ${HAVE_STRLCPY}
284 #define HAVE_STRTONUM ${HAVE_STRTONUM}
285 #define HAVE_VASPRINTF ${HAVE_VASPRINTF}
289 [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
291 [ ${HAVE_EXPLICIT_BZERO} -eq 0 -o \
292 ${HAVE_RECALLOCARRAY} -eq 0 -o \
293 ${HAVE_STRLCAT} -eq 0 -o \
294 ${HAVE_STRLCPY} -eq 0 -o \
295 ${HAVE_STRTONUM} -eq 0 ] && echo "#include <stddef.h>"
297 if [ ${HAVE_ERR} -eq 0 ]; then
298 echo "extern void err(int, const char*, ...);"
299 echo "extern void errx(int, const char*, ...);"
300 echo "extern void warn(const char*, ...);"
301 echo "extern void warnx(const char*, ...);"
302 COMPAT="${COMPAT} compat/err.o"
304 echo "#include <err.h>"
306 if [ ${HAVE_EXPLICIT_BZERO} -eq 0 ]; then
307 echo "extern void explicit_bzero(void*, size_t);"
308 COMPAT="${COMPAT} compat/explicit_bzero.o"
310 if [ ${HAVE_RECALLOCARRAY} -eq 0 ]; then
311 echo "extern void* recallocarray(void*, size_t, size_t, size_t);"
312 COMPAT="${COMPAT} compat/recallocarray.o"
314 if [ ${HAVE_STRLCAT} -eq 0 ]; then
315 echo "extern size_t strlcat(char*, const char*, size_t);"
316 COMPAT="${COMPAT} compat/strlcat.o"
318 if [ ${HAVE_STRLCPY} -eq 0 ]; then
319 echo "extern size_t strlcpy(char*, const char*, size_t);"
320 COMPAT="${COMPAT} compat/strlcpy.o"
322 if [ ${HAVE_STRTONUM} -eq 0 ]; then
323 echo "extern long long strtonum(const char*, long long, long long, const char**);"
324 COMPAT="${COMPAT} compat/strtonum.o"
326 if [ ${HAVE_VASPRINTF} -eq 0 ]; then
327 echo "extern int vasprintf(char**, const char*, va_list);"
328 COMPAT="${COMPAT} compat/vasprintf.o"
330 echo "file config.h: written" 1>&2
331 echo "file config.h: written" 1>&3
334 # tests for Makefile.local
336 exec > Makefile.local
338 [ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"
339 [ -z "${MANDIR}" ] && MANDIR="${PREFIX}/man"
341 [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
342 [ -z "${INSTALL_LIB}" ] && INSTALL_LIB="${INSTALL} -m 0444"
343 [ -z "${INSTALL_MAN}" ] && INSTALL_MAN="${INSTALL} -m 0444"
344 [ -z "${INSTALL_DATA}" ] && INSTALL_DATA="${INSTALL} -m 0444"
356 INCLUDEDIR = ${INCLUDEDIR}
358 INSTALL_PROGRAM = ${INSTALL_PROGRAM}
359 INSTALL_LIB = ${INSTALL_LIB}
360 INSTALL_MAN = ${INSTALL_MAN}
361 INSTALL_DATA = ${INSTALL_DATA}
364 echo "file Makefile.local: written" 1>&2
365 echo "file Makefile.local: written" 1>&3