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 OCONFIGURE_VERSION="0.3.8"
20 MYMENU_VERSION="0.2"
21 
22 #
23 # This script outputs two files: config.h and Makefile.configure.
24 # It tries to read from configure.local, which contains predefined
25 # values we won't autoconfigure.
26 #
27 # If you want to use configure with your project, have your GNUmakefile
28 # or BSDmakefile---whichever---try to import/include Makefile.configure
29 # at the beginning of the file.
30 #
31 # Like so (note no quotes, no period, etc.):
32 #
33 #   include Makefile.configure
34 #
35 # If it exists, configure was run; otherwise, it wasn't.
36 #
37 # You'll probably want to change parts of this file.  I've noted the
38 # parts that you'll probably change in the section documentation.
39 #
40 # See https://github.com/kristapsdz/oconfigure for more.
41 
42 set -e
43 
44 #----------------------------------------------------------------------
45 # Prepare for running: move aside previous configure runs.
46 # Output file descriptor usage:
47 #  1 (stdout): config.h or Makefile.configure
48 #  2 (stderr): original stderr, usually to the console
49 #  3: config.log
50 # You DO NOT want to change this.
51 #----------------------------------------------------------------------
52 
53 [ -w config.log ] && mv config.log config.log.old
54 [ -w config.h   ] && mv config.h config.h.old
55 
56 exec 3> config.log
57 echo "config.log: writing..."
58 
59 # GNU submake prints different output if invoked recursively, which
60 # messes up CC and CFLAGS detection.  Pass --no-print-directory if
61 # we have a MAKELEVEL (GNU and FreeBSD make) and the argument is
62 # allowed.
63 
64 MAKE_FLAGS=""
65 
66 if [ -n "${MAKELEVEL}" ]; then
67 	if [ "${MAKELEVEL}" -gt 0 ] ; then
68 		MAKE_FLAGS="--no-print-directory"
69 		echo "all:" | make ${MAKE_FLAGS} -sf - 2>/dev/null || MAKE_FLAGS=""
70 	fi
71 fi
72 
73 if [ -n "$MAKE_FLAGS" ]; then
74 	echo "GNU submake detected: using --no-print-directory" 1>&2
75 	echo "GNU submake detected: using --no-print-directory" 1>&3
76 fi
77 
78 #----------------------------------------------------------------------
79 # Initialize all variables here such that nothing can leak in from the
80 # environment except for CC and CFLAGS, which we might have passed in.
81 #----------------------------------------------------------------------
82 
83 CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | make ${MAKE_FLAGS} -sf -`
84 CFLAGS=`printf "all:\\n\\t@echo \\\$(CFLAGS)\\n" | make ${MAKE_FLAGS} -sf -`
85 CFLAGS="${CFLAGS} -g -W -Wall -Wextra" # -Wmissing-prototypes -Wstrict-prototypes
86 #CFLAGS="${CFLAGS} -Wwrite-strings -Wno-unused-parameter"
87 LDADD=
88 LDADD_LIB_SOCKET=
89 LDADD_STATIC=
90 LDADD_LIB_X11=
91 CPPFLAGS=
92 LDFLAGS=
93 DESTDIR=
94 PREFIX="/usr/local"
95 BINDIR=
96 SBINDIR=
97 INCLUDEDIR=
98 LIBDIR=
99 MANDIR=
100 SHAREDIR=
101 INSTALL="install"
102 INSTALL_PROGRAM=
103 INSTALL_LIB=
104 INSTALL_MAN=
105 INSTALL_DATA=
106 
107 # compats needed
108 COBJ=
109 
110 # SunOS sets "cc", but this doesn't exist.
111 # It does have gcc, so try that instead.
112 # Prefer clang, though.
113 
114 command -v ${CC} 2>/dev/null 1>&2 || {
115 	echo "${CC} not found: trying clang" 1>&2
116 	echo "${CC} not found: trying clang" 1>&3
117 	CC=clang
118 	command -v ${CC} 2>/dev/null 1>&2 || {
119 		echo "${CC} not found: trying gcc" 1>&2
120 		echo "${CC} not found: trying gcc" 1>&3
121 		CC=gcc
122 		command -v ${CC} 2>/dev/null 1>&2 || {
123 			echo "gcc not found: giving up" 1>&2
124 			echo "gcc not found: giving up" 1>&3
125 			exit 1
126 		}
127 	}
128 }
129 
130 # Automatically set flags for x11 on OpenBSD
131 case $(uname) in
132 	OpenBSD)
133 		CFLAGS="${CFLAGS} -I/usr/X11R6/include"
134 		CFLAGS="${CFLAGS} -I/usr/X11R6/include/freetype2"
135 		LDFLAGS="-L/usr/X11R6/lib"
136 		;;
137 esac
138 
139 #----------------------------------------------------------------------
140 # Allow certain variables to be overriden on the command line.
141 #----------------------------------------------------------------------
142 
143 for keyvals in "$@"
144 do
145 	key=`echo $keyvals | cut -s -d '=' -f 1`
146 	if [ -z "$key" ]
147 	then
148 		echo "$0: invalid key-value: $keyvals" 1>&2
149 		exit 1
150 	fi
151 	val=`echo $keyvals | cut -d '=' -f 2-`
152 	case "$key" in
153 	LDADD)
154 		LDADD="$val" ;;
155 	LDFLAGS)
156 		LDFLAGS="$val" ;;
157 	CPPFLAGS)
158 		CPPFLAGS="$val" ;;
159 	DESTDIR)
160 		DESTDIR="$val" ;;
161 	PREFIX)
162 		PREFIX="$val" ;;
163 	MANDIR)
164 		MANDIR="$val" ;;
165 	LIBDIR)
166 		LIBDIR="$val" ;;
167 	BINDIR)
168 		BINDIR="$val" ;;
169 	SHAREDIR)
170 		SHAREDIR="$val" ;;
171 	SBINDIR)
172 		SBINDIR="$val" ;;
173 	INCLUDEDIR)
174 		INCLUDEDIR="$val" ;;
175 	*)
176 		echo "$0: invalid key: $key" 1>&2
177 		exit 1
178 	esac
179 done
180 
181 
182 #----------------------------------------------------------------------
183 # These are the values that will be pushed into config.h after we test
184 # for whether they're supported or not.
185 # Each of these must have a runtest(), below.
186 # Please sort by alpha, for clarity.
187 # You WANT to change this.
188 #----------------------------------------------------------------------
189 
190 HAVE_CAPSICUM=
191 HAVE_ERR=
192 HAVE_GETEXECNAME=
193 HAVE_GETPROGNAME=
194 HAVE_LANDLOCK=
195 HAVE_PLEDGE=
196 HAVE_PROGRAM_INVOCATION_SHORT_NAME=
197 HAVE_REALLOCARRAY=
198 HAVE_RECALLOCARRAY=
199 HAVE_STRTONUM=
200 HAVE___PROGNAME=
201 
202 #----------------------------------------------------------------------
203 # Allow configure.local to override all variables, default settings,
204 # command-line arguments, and tested features, above.
205 # You PROBABLY DO NOT want to change this.
206 #----------------------------------------------------------------------
207 
208 if [ -r ./configure.local ]; then
209 	echo "configure.local: reading..." 1>&2
210 	echo "configure.local: reading..." 1>&3
211 	cat ./configure.local 1>&3
212 	. ./configure.local
213 else
214 	echo "configure.local: no (fully automatic configuration)" 1>&2
215 	echo "configure.local: no (fully automatic configuration)" 1>&3
216 fi
217 
218 echo 1>&3
219 
220 #----------------------------------------------------------------------
221 # Infrastructure for running tests.
222 # These consists of a series of functions that will attempt to run the
223 # given test file and record its exit into a HAVE_xxx variable.
224 # You DO NOT want to change this.
225 #----------------------------------------------------------------------
226 
227 COMP="${CC} ${CFLAGS} ${CPPFLAGS} -Wno-unused -Werror"
228 
229 # Check whether this HAVE_ setting is manually overridden.
230 # If yes, use the override, if no, do not decide anything yet.
231 # Arguments: lower-case test name, manual value
232 
233 ismanual() {
234 	[ -z "${3}" ] && return 1
235 	echo "${1}: manual (HAVE_${2}=${3})" 1>&2
236 	echo "${1}: manual (HAVE_${2}=${3})" 1>&3
237 	echo 1>&3
238 	return 0
239 }
240 
241 # Run a single autoconfiguration test.
242 # In case of success, enable the feature.
243 # In case of failure, do not decide anything yet.
244 # Arguments: lower-case test name, upper-case test name, additional
245 # CFLAGS, additional LIBS.
246 
247 singletest() {
248 	extralib=""
249 	cat 1>&3 << __HEREDOC__
250 ${1}: testing...
251 ${COMP} ${3} -o test-${1} test-${1}.c ${LDFLAGS} ${4}
252 __HEREDOC__
253 	if ${COMP} ${3} -o "test-${1}" test-${1}.c ${LDFLAGS} ${4} 1>&3 2>&3; then
254 		echo "${1}: ${CC} succeeded" 1>&3
255 	else
256 		if [ -n "${5}" ] ; then
257 			echo "${1}: ${CC} failed with $? (retrying)" 1>&3
258 			cat 1>&3 << __HEREDOC__
259 ${1}: testing...
260 ${COMP} ${3} -o test-${1} test-${1}.c ${LDFLAGS} ${5}
261 __HEREDOC__
262 			if ${COMP} ${3} -o "test-${1}" test-${1}.c ${LDFLAGS} ${5} 1>&3 2>&3; then
263 				echo "${1}: ${CC} succeeded" 1>&3
264 				extralib="(with ${5})"
265 			else
266 				echo "${1}: ${CC} failed with $?" 1>&3
267 				echo 1>&3
268 				return 1
269 			fi
270 		else
271 			echo "${1}: ${CC} failed with $?" 1>&3
272 			echo 1>&3
273 			return 1
274 		fi
275 	fi
276 
277 	if [ -n "${extralib}" ]
278 	then
279 		eval "LDADD_${2}=\"${5}\""
280 	elif [ -n "${4}" ]
281 	then
282 		eval "LDADD_${2}=\"${4}\""
283 	fi
284 
285 	echo "${1}: yes ${extralib}" 1>&2
286 	echo "${1}: yes ${extralib}" 1>&3
287 	echo 1>&3
288 	eval HAVE_${2}=1
289 	rm "test-${1}"
290 	return 0
291 }
292 
293 # Run a complete autoconfiguration test, including the check for
294 # a manual override and disabling the feature on failure.
295 # Arguments: lower case name, upper case name, additional CFLAGS,
296 # additional LDADD, alternative LDADD.
297 
298 runtest() {
299 	eval _manual=\${HAVE_${2}}
300 	ismanual "${1}" "${2}" "${_manual}" && return 0
301 	singletest "${1}" "${2}" "${3}" "${4}" "${5}" && return 0
302 	echo "${1}: no" 1>&2
303 	eval HAVE_${2}=0
304 	return 1
305 }
306 
307 #----------------------------------------------------------------------
308 # Begin running the tests themselves.
309 # All of your tests must be defined here.
310 # Please sort as the HAVE_xxxx values were defined.
311 # You WANT to change this.
312 # It consists of the following columns:
313 #    runtest
314 #    (1) test file
315 #    (2) macro to set
316 #    (3) argument to cc *before* -o
317 #    (4) argument to cc *after*
318 #    (5) alternative argument to cc *after*
319 #----------------------------------------------------------------------
320 
321 runtest capsicum	CAPSICUM			  || true
322 runtest err		ERR				  || true
323 runtest getexecname	GETEXECNAME			  || true
324 runtest getprogname	GETPROGNAME			  || true
325 runtest landlock	LANDLOCK			  || true
326 runtest lib_socket	LIB_SOCKET "" "" "-lsocket -lnsl" || true
327 runtest pledge		PLEDGE				  || true
328 runtest program_invocation_short_name	PROGRAM_INVOCATION_SHORT_NAME || true
329 runtest reallocarray	REALLOCARRAY			  || true
330 runtest recallocarray	RECALLOCARRAY			  || true
331 runtest static		STATIC "" "-static"		  || true
332 runtest strtonum	STRTONUM			  || true
333 runtest x11		LIB_X11 "" "" "-lX11 -lXinerama -lXft" || true
334 runtest __progname	__PROGNAME			  || true
335 
336 if [ "${HAVE_LIB_X11}" -eq 0 ]; then
337 	echo "FATAL: libx11 not found" 1>&2
338 	echo "FATAL: libx11 not found" 1>&3
339 	exit 1
340 fi
341 
342 #----------------------------------------------------------------------
343 # Output writing: generate the config.h file.
344 # This file contains all of the HAVE_xxxx variables necessary for
345 # compiling your source.
346 # You must include "config.h" BEFORE any other variables.
347 # You WANT to change this.
348 #----------------------------------------------------------------------
349 
350 exec > config.h
351 
352 # Start with prologue.
353 
354 cat << __HEREDOC__
355 #ifndef OCONFIGURE_CONFIG_H
356 #define OCONFIGURE_CONFIG_H
357 
358 #ifdef __cplusplus
359 # error "Do not use C++: this is a C application."
360 #endif
361 #if !defined(__GNUC__) || (__GNUC__ < 4)
362 # define __attribute__(x)
363 #endif
364 #if defined(__linux__) || defined(__MINT__)
365 # define _GNU_SOURCE /* memmem, memrchr, setresuid... */
366 # define _DEFAULT_SOURCE /* le32toh, crypt, ... */
367 #endif
368 #if defined(__NetBSD__)
369 # define _OPENBSD_SOURCE /* reallocarray, etc. */
370 #endif
371 #if defined(__sun)
372 # ifndef _XOPEN_SOURCE /* SunOS already defines */
373 #  define _XOPEN_SOURCE /* XPGx */
374 # endif
375 # define _XOPEN_SOURCE_EXTENDED 1 /* XPG4v2 */
376 # ifndef __EXTENSIONS__ /* SunOS already defines */
377 #  define __EXTENSIONS__ /* reallocarray, etc. */
378 # endif
379 #endif
380 #if !defined(__BEGIN_DECLS)
381 # define __BEGIN_DECLS
382 #endif
383 #if !defined(__END_DECLS)
384 # define __END_DECLS
385 #endif
386 
387 __HEREDOC__
388 
389 # This is just for size_t, mode_t, and dev_t.
390 # Most of these functions, in the real world, pull in <string.h> or
391 # someting that pulls in support for size_t.
392 # Our function declarations are standalone, so specify them here.
393 
394 if [ ${HAVE_REALLOCARRAY} -eq 0 -o \
395      ${HAVE_RECALLOCARRAY} -eq 0 ]
396 then
397 	echo "#include <sys/types.h> /* size_t, mode_t, dev_t */ "
398 	echo
399 fi
400 
401 if [ ${HAVE_ERR} -eq 0 ]
402 then
403 	echo "#include <stdarg.h> /* err(3) */"
404 	echo
405 fi
406 
407 # Now we handle our HAVE_xxxx values.
408 # Most will just be defined as 0 or 1.
409 
410 cat << __HEREDOC__
411 /*
412  * Results of configuration feature-testing.
413  */
414 #define HAVE_CAPSICUM ${HAVE_CAPSICUM}
415 #define HAVE_ERR ${HAVE_ERR}
416 #define HAVE_GETEXECNAME ${HAVE_GETEXECNAME}
417 #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
418 #define HAVE_LANDLOCK ${HAVE_LANDLOCK}
419 #define HAVE_PLEDGE ${HAVE_PLEDGE}
420 #define HAVE_PROGRAM_INVOCATION_SHORT_NAME ${HAVE_PROGRAM_INVOCATION_SHORT_NAME}
421 #define HAVE_REALLOCARRAY ${HAVE_REALLOCARRAY}
422 #define HAVE_RECALLOCARRAY ${HAVE_RECALLOCARRAY}
423 #define HAVE_STRTONUM ${HAVE_STRTONUM}
424 #define HAVE___PROGNAME ${HAVE___PROGNAME}
425 
426 __HEREDOC__
427 
428 # Now we do our function declarations for missing functions.
429 
430 [ ${HAVE_ERR} -eq 0 ] && \
431 	COBJ="compat_err.c ${COBJ}" && \
432 	cat << __HEREDOC__
433 /*
434  * Compatibility functions for err(3).
435  */
436 extern void err(int, const char *, ...) __attribute__((noreturn));
437 extern void errc(int, int, const char *, ...) __attribute__((noreturn));
438 extern void errx(int, const char *, ...) __attribute__((noreturn));
439 extern void verr(int, const char *, va_list) __attribute__((noreturn));
440 extern void verrc(int, int, const char *, va_list) __attribute__((noreturn));
441 extern void verrx(int, const char *, va_list) __attribute__((noreturn));
442 extern void warn(const char *, ...);
443 extern void warnx(const char *, ...);
444 extern void warnc(int, const char *, ...);
445 extern void vwarn(const char *, va_list);
446 extern void vwarnc(int, const char *, va_list);
447 extern void vwarnx(const char *, va_list);
448 __HEREDOC__
449 
450 [ ${HAVE_GETPROGNAME} -eq 0 ] && \
451 	COBJ="compat_getprogname.c ${COBJ}" && \
452 	cat << __HEREDOC__
453 /*
454  * Compatibility for getprogname(3).
455  */
456 extern const char *getprogname(void);
457 
458 __HEREDOC__
459 
460 [ ${HAVE_REALLOCARRAY} -eq 0 ] && \
461 	COBJ="compat_reallocarray.c ${COBJ}" && \
462 	cat << __HEREDOC__
463 /*
464  * Compatibility for reallocarray(3).
465  */
466 extern void *reallocarray(void *, size_t, size_t);
467 
468 __HEREDOC__
469 
470 [ ${HAVE_RECALLOCARRAY} -eq 0 ] && \
471 	COBJ="compat_recallocarray.c ${COBJ}" && \
472 	cat << __HEREDOC__
473 /*
474  * Compatibility for recallocarray(3).
475  */
476 extern void *recallocarray(void *, size_t, size_t, size_t);
477 
478 __HEREDOC__
479 
480 [ ${HAVE_STRTONUM} -eq 0 ] && \
481 	COBJ="compat_strtonum.c ${COBJ}" && \
482 	cat << __HEREDOC__
483 /*
484  * Compatibility for strotnum(3).
485  */
486 extern long long strtonum(const char *, long long, long long, const char **);
487 
488 __HEREDOC__
489 
490 cat <<__HEREDOC__
491 /*
492  * mymenu version
493  */
494 #define VERSION "${MYMENU_VERSION}"
495 
496 __HEREDOC__
497 
498 cat << __HEREDOC__
499 #endif /*!OCONFIGURE_CONFIG_H*/
500 __HEREDOC__
501 
502 echo "config.h: written" 1>&2
503 echo "config.h: written" 1>&3
504 
505 #----------------------------------------------------------------------
506 # Now we go to generate our Makefile.configure.
507 # This file is simply a bunch of Makefile variables.
508 # They'll work in both GNUmakefile and BSDmakefile.
509 # You MIGHT want to change this.
510 #----------------------------------------------------------------------
511 
512 exec > Makefile.configure
513 
514 [ -z "${BINDIR}"     ] && BINDIR="${PREFIX}/bin"
515 [ -z "${SBINDIR}"    ] && SBINDIR="${PREFIX}/sbin"
516 [ -z "${INCLUDEDIR}" ] && INCLUDEDIR="${PREFIX}/include"
517 [ -z "${LIBDIR}"     ] && LIBDIR="${PREFIX}/lib"
518 [ -z "${MANDIR}"     ] && MANDIR="${PREFIX}/man"
519 [ -z "${SHAREDIR}"   ] && SHAREDIR="${PREFIX}/share"
520 
521 [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
522 [ -z "${INSTALL_LIB}"     ] && INSTALL_LIB="${INSTALL} -m 0444"
523 [ -z "${INSTALL_MAN}"     ] && INSTALL_MAN="${INSTALL} -m 0444"
524 [ -z "${INSTALL_DATA}"    ] && INSTALL_DATA="${INSTALL} -m 0444"
525 
526 cat << __HEREDOC__
527 CC		 = ${CC}
528 CFLAGS		 = ${CFLAGS}
529 CPPFLAGS	 = ${CPPFLAGS}
530 LDADD		 = ${LDADD}
531 LDADD_LIB_SOCKET = ${LDADD_LIB_SOCKET}
532 LDADD_STATIC	 = ${LDADD_STATIC}
533 LDADD_LIB_X11	 = ${LDADD_LIB_X11}
534 LDFLAGS		 = ${LDFLAGS}
535 STATIC		 = ${STATIC}
536 PREFIX		 = ${PREFIX}
537 BINDIR		 = ${BINDIR}
538 SHAREDIR	 = ${SHAREDIR}
539 SBINDIR		 = ${SBINDIR}
540 INCLUDEDIR	 = ${INCLUDEDIR}
541 LIBDIR		 = ${LIBDIR}
542 MANDIR		 = ${MANDIR}
543 INSTALL		 = ${INSTALL}
544 INSTALL_PROGRAM	 = ${INSTALL_PROGRAM}
545 INSTALL_LIB	 = ${INSTALL_LIB}
546 INSTALL_MAN	 = ${INSTALL_MAN}
547 INSTALL_DATA	 = ${INSTALL_DATA}
548 
549 COBJ		 = ${COBJ}
550 __HEREDOC__
551 
552 echo "Makefile.configure: written" 1>&2
553 echo "Makefile.configure: written" 1>&3
554 
555 exit 0