b24e7fce |
1 | #!/bin/sh |
2 | # configure script for zlib. |
3 | # |
4 | # Normally configure builds both a static and a shared library. |
5 | # If you want to build just a static library, use: ./configure --static |
6 | # |
7 | # To impose specific compiler or flags or install directory, use for example: |
8 | # prefix=$HOME CC=cc CFLAGS="-O4" ./configure |
9 | # or for csh/tcsh users: |
10 | # (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure) |
11 | |
12 | # Incorrect settings of CC or CFLAGS may prevent creating a shared library. |
13 | # If you have problems, try without defining CC and CFLAGS before reporting |
14 | # an error. |
15 | |
16 | # start off configure.log |
17 | echo -------------------- >> configure.log |
18 | echo $0 $* >> configure.log |
19 | date >> configure.log |
20 | |
21 | # get source directory |
22 | SRCDIR=`dirname $0` |
23 | if test $SRCDIR = "."; then |
24 | ZINC="" |
25 | ZINCOUT="-I." |
26 | SRCDIR="" |
27 | else |
28 | ZINC='-include zconf.h' |
29 | ZINCOUT='-I. -I$(SRCDIR)' |
30 | SRCDIR="$SRCDIR/" |
31 | fi |
32 | |
33 | # set command prefix for cross-compilation |
34 | if [ -n "${CHOST}" ]; then |
9e052883 |
35 | uname=${CHOST} |
36 | mname=${CHOST} |
b24e7fce |
37 | CROSS_PREFIX="${CHOST}-" |
9e052883 |
38 | else |
39 | mname=`(uname -a || echo unknown) 2>/dev/null` |
b24e7fce |
40 | fi |
41 | |
42 | # destination name for static library |
43 | STATICLIB=libz.a |
44 | |
45 | # extract zlib version numbers from zlib.h |
46 | VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < ${SRCDIR}zlib.h` |
47 | VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < ${SRCDIR}zlib.h` |
48 | VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h` |
49 | VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h` |
50 | |
51 | # establish commands for library building |
52 | if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
53 | AR=${AR-"${CROSS_PREFIX}ar"} |
54 | test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
55 | else |
56 | AR=${AR-"ar"} |
57 | test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
58 | fi |
59 | ARFLAGS=${ARFLAGS-"rc"} |
60 | if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
61 | RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} |
62 | test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log |
63 | else |
64 | RANLIB=${RANLIB-"ranlib"} |
65 | fi |
66 | if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
67 | NM=${NM-"${CROSS_PREFIX}nm"} |
68 | test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log |
69 | else |
70 | NM=${NM-"nm"} |
71 | fi |
72 | |
73 | # set defaults before processing command line options |
74 | LDCONFIG=${LDCONFIG-"ldconfig"} |
75 | LDSHAREDLIBC="${LDSHAREDLIBC--lc}" |
76 | ARCHS= |
77 | prefix=${prefix-/usr/local} |
78 | exec_prefix=${exec_prefix-'${prefix}'} |
79 | libdir=${libdir-'${exec_prefix}/lib'} |
80 | sharedlibdir=${sharedlibdir-'${libdir}'} |
81 | includedir=${includedir-'${prefix}/include'} |
82 | mandir=${mandir-'${prefix}/share/man'} |
83 | shared_ext='.so' |
84 | shared=1 |
85 | solo=0 |
86 | cover=0 |
87 | zprefix=0 |
88 | zconst=0 |
89 | build64=0 |
90 | gcc=0 |
91 | warn=0 |
92 | debug=0 |
9e052883 |
93 | sanitize=0 |
b24e7fce |
94 | old_cc="$CC" |
95 | old_cflags="$CFLAGS" |
96 | OBJC='$(OBJZ) $(OBJG)' |
97 | PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)' |
98 | |
99 | # leave this script, optionally in a bad way |
100 | leave() |
101 | { |
102 | if test "$*" != "0"; then |
103 | echo "** $0 aborting." | tee -a configure.log |
104 | fi |
105 | rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version |
106 | echo -------------------- >> configure.log |
107 | echo >> configure.log |
108 | echo >> configure.log |
109 | exit $1 |
110 | } |
111 | |
112 | # process command line options |
113 | while test $# -ge 1 |
114 | do |
115 | case "$1" in |
116 | -h* | --help) |
117 | echo 'usage:' | tee -a configure.log |
118 | echo ' configure [--const] [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log |
119 | echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log |
120 | echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log |
121 | exit 0 ;; |
122 | -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;; |
123 | -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;; |
124 | -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;; |
125 | --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;; |
126 | -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;; |
127 | -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;; |
128 | -p* | --prefix) prefix="$2"; shift; shift ;; |
129 | -e* | --eprefix) exec_prefix="$2"; shift; shift ;; |
130 | -l* | --libdir) libdir="$2"; shift; shift ;; |
131 | -i* | --includedir) includedir="$2"; shift; shift ;; |
132 | -s* | --shared | --enable-shared) shared=1; shift ;; |
133 | -t | --static) shared=0; shift ;; |
134 | --solo) solo=1; shift ;; |
135 | --cover) cover=1; shift ;; |
136 | -z* | --zprefix) zprefix=1; shift ;; |
137 | -6* | --64) build64=1; shift ;; |
138 | -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;; |
139 | --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;; |
140 | --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;; |
141 | -c* | --const) zconst=1; shift ;; |
142 | -w* | --warn) warn=1; shift ;; |
143 | -d* | --debug) debug=1; shift ;; |
9e052883 |
144 | --sanitize) sanitize=1; shift ;; |
b24e7fce |
145 | *) |
146 | echo "unknown option: $1" | tee -a configure.log |
147 | echo "$0 --help for help" | tee -a configure.log |
148 | leave 1;; |
149 | esac |
150 | done |
151 | |
152 | # temporary file name |
153 | test=ztest$$ |
154 | |
155 | # put arguments in log, also put test file in log if used in arguments |
156 | show() |
157 | { |
158 | case "$*" in |
159 | *$test.c*) |
160 | echo === $test.c === >> configure.log |
161 | cat $test.c >> configure.log |
162 | echo === >> configure.log;; |
163 | esac |
164 | echo $* >> configure.log |
165 | } |
166 | |
167 | # check for gcc vs. cc and set compile and link flags based on the system identified by uname |
168 | cat > $test.c <<EOF |
169 | extern int getchar(); |
170 | int hello() {return getchar();} |
171 | EOF |
172 | |
9e052883 |
173 | if test -z "$CC"; then |
174 | echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log |
175 | if ${CROSS_PREFIX}gcc -v >/dev/null 2>&1; then |
176 | cc=${CROSS_PREFIX}gcc |
177 | else |
178 | cc=${CROSS_PREFIX}cc |
179 | fi |
180 | else |
181 | cc=${CC} |
182 | fi |
183 | |
b24e7fce |
184 | case "$cc" in |
185 | *gcc*) gcc=1 ;; |
186 | *clang*) gcc=1 ;; |
187 | esac |
188 | case `$cc -v 2>&1` in |
189 | *gcc*) gcc=1 ;; |
190 | *clang*) gcc=1 ;; |
191 | esac |
192 | |
193 | show $cc -c $test.c |
194 | if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then |
195 | echo ... using gcc >> configure.log |
196 | CC="$cc" |
197 | CFLAGS="${CFLAGS--O3}" |
198 | SFLAGS="${CFLAGS--O3} -fPIC" |
199 | if test "$ARCHS"; then |
200 | CFLAGS="${CFLAGS} ${ARCHS}" |
201 | LDFLAGS="${LDFLAGS} ${ARCHS}" |
202 | fi |
203 | if test $build64 -eq 1; then |
204 | CFLAGS="${CFLAGS} -m64" |
205 | SFLAGS="${SFLAGS} -m64" |
206 | fi |
207 | if test "$warn" -eq 1; then |
208 | if test "$zconst" -eq 1; then |
9e052883 |
209 | CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -DZLIB_CONST" |
b24e7fce |
210 | else |
9e052883 |
211 | CFLAGS="${CFLAGS} -Wall -Wextra" |
b24e7fce |
212 | fi |
213 | fi |
9e052883 |
214 | if test $sanitize -eq 1; then |
215 | CFLAGS="${CFLAGS} -g -fsanitize=address" |
216 | fi |
b24e7fce |
217 | if test $debug -eq 1; then |
218 | CFLAGS="${CFLAGS} -DZLIB_DEBUG" |
219 | SFLAGS="${SFLAGS} -DZLIB_DEBUG" |
220 | fi |
221 | if test -z "$uname"; then |
222 | uname=`(uname -s || echo unknown) 2>/dev/null` |
223 | fi |
224 | case "$uname" in |
9e052883 |
225 | Linux* | linux* | *-linux* | GNU | GNU/* | solaris*) |
226 | case "$mname" in |
227 | *sparc*) |
228 | LDFLAGS="${LDFLAGS} -Wl,--no-warn-rwx-segments" ;; |
229 | esac |
b24e7fce |
230 | LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;; |
231 | *BSD | *bsd* | DragonFly) |
232 | LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} |
233 | LDCONFIG="ldconfig -m" ;; |
9e052883 |
234 | CYGWIN* | Cygwin* | cygwin* | *-cygwin* | OS/2*) |
b24e7fce |
235 | EXE='.exe' ;; |
9e052883 |
236 | MINGW* | mingw* | *-mingw*) |
b24e7fce |
237 | rm -f $test.[co] $test $test$shared_ext |
9e052883 |
238 | echo "If this doesn't work for you, try win32/Makefile.gcc." | tee -a configure.log |
b24e7fce |
239 | LDSHARED=${LDSHARED-"$cc -shared"} |
240 | LDSHAREDLIBC="" |
241 | EXE='.exe' ;; |
9e052883 |
242 | QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4 |
243 | # (alain.bonnefoy@icbt.com) |
244 | LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;; |
b24e7fce |
245 | HP-UX*) |
9e052883 |
246 | LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} |
247 | case `(uname -m || echo unknown) 2>/dev/null` in |
248 | ia64) |
249 | shared_ext='.so' |
250 | SHAREDLIB='libz.so' ;; |
251 | *) |
252 | shared_ext='.sl' |
253 | SHAREDLIB='libz.sl' ;; |
254 | esac ;; |
255 | AIX*) |
256 | LDFLAGS="${LDFLAGS} -Wl,-brtl" ;; |
257 | Darwin* | darwin* | *-darwin*) |
258 | shared_ext='.dylib' |
259 | SHAREDLIB=libz$shared_ext |
260 | SHAREDLIBV=libz.$VER$shared_ext |
261 | SHAREDLIBM=libz.$VER1$shared_ext |
262 | LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} |
263 | if libtool -V 2>&1 | grep Apple > /dev/null; then |
264 | AR="libtool" |
265 | else |
266 | AR="/usr/bin/libtool" |
267 | fi |
268 | ARFLAGS="-o" ;; |
269 | *) |
270 | LDSHARED=${LDSHARED-"$cc -shared"} ;; |
b24e7fce |
271 | esac |
272 | else |
273 | # find system name and corresponding cc options |
274 | CC=${CC-cc} |
275 | gcc=0 |
276 | echo ... using $CC >> configure.log |
277 | if test -z "$uname"; then |
278 | uname=`(uname -sr || echo unknown) 2>/dev/null` |
279 | fi |
280 | case "$uname" in |
281 | HP-UX*) SFLAGS=${CFLAGS-"-O +z"} |
282 | CFLAGS=${CFLAGS-"-O"} |
283 | # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} |
284 | LDSHARED=${LDSHARED-"ld -b"} |
285 | case `(uname -m || echo unknown) 2>/dev/null` in |
286 | ia64) |
287 | shared_ext='.so' |
288 | SHAREDLIB='libz.so' ;; |
289 | *) |
290 | shared_ext='.sl' |
291 | SHAREDLIB='libz.sl' ;; |
292 | esac ;; |
293 | IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} |
294 | CFLAGS=${CFLAGS-"-ansi -O2"} |
295 | LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
296 | OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} |
297 | CFLAGS=${CFLAGS-"-O -std1"} |
298 | LDFLAGS="${LDFLAGS} -Wl,-rpath,." |
299 | LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; |
300 | OSF1*) SFLAGS=${CFLAGS-"-O -std1"} |
301 | CFLAGS=${CFLAGS-"-O -std1"} |
302 | LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
303 | QNX*) SFLAGS=${CFLAGS-"-4 -O"} |
304 | CFLAGS=${CFLAGS-"-4 -O"} |
305 | LDSHARED=${LDSHARED-"cc"} |
306 | RANLIB=${RANLIB-"true"} |
307 | AR="cc" |
308 | ARFLAGS="-A" ;; |
309 | SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} |
310 | CFLAGS=${CFLAGS-"-O3"} |
311 | LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; |
312 | SunOS\ 5* | solaris*) |
313 | LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"} |
314 | SFLAGS=${CFLAGS-"-fast -KPIC"} |
315 | CFLAGS=${CFLAGS-"-fast"} |
316 | if test $build64 -eq 1; then |
317 | # old versions of SunPRO/Workshop/Studio don't support -m64, |
318 | # but newer ones do. Check for it. |
319 | flag64=`$CC -flags | egrep -- '^-m64'` |
320 | if test x"$flag64" != x"" ; then |
321 | CFLAGS="${CFLAGS} -m64" |
322 | SFLAGS="${SFLAGS} -m64" |
323 | else |
324 | case `(uname -m || echo unknown) 2>/dev/null` in |
325 | i86*) |
326 | SFLAGS="$SFLAGS -xarch=amd64" |
327 | CFLAGS="$CFLAGS -xarch=amd64" ;; |
328 | *) |
329 | SFLAGS="$SFLAGS -xarch=v9" |
330 | CFLAGS="$CFLAGS -xarch=v9" ;; |
331 | esac |
332 | fi |
333 | fi |
334 | if test -n "$ZINC"; then |
335 | ZINC='-I- -I. -I$(SRCDIR)' |
336 | fi |
337 | ;; |
338 | SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} |
339 | CFLAGS=${CFLAGS-"-O2"} |
340 | LDSHARED=${LDSHARED-"ld"} ;; |
341 | SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} |
342 | CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} |
343 | LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; |
344 | UNIX_System_V\ 4.2.0) |
345 | SFLAGS=${CFLAGS-"-KPIC -O"} |
346 | CFLAGS=${CFLAGS-"-O"} |
347 | LDSHARED=${LDSHARED-"cc -G"} ;; |
348 | UNIX_SV\ 4.2MP) |
349 | SFLAGS=${CFLAGS-"-Kconform_pic -O"} |
350 | CFLAGS=${CFLAGS-"-O"} |
351 | LDSHARED=${LDSHARED-"cc -G"} ;; |
352 | OpenUNIX\ 5) |
353 | SFLAGS=${CFLAGS-"-KPIC -O"} |
354 | CFLAGS=${CFLAGS-"-O"} |
355 | LDSHARED=${LDSHARED-"cc -G"} ;; |
356 | AIX*) # Courtesy of dbakker@arrayasolutions.com |
357 | SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
358 | CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
359 | LDSHARED=${LDSHARED-"xlc -G"} ;; |
360 | # send working options for other systems to zlib@gzip.org |
361 | *) SFLAGS=${CFLAGS-"-O"} |
362 | CFLAGS=${CFLAGS-"-O"} |
363 | LDSHARED=${LDSHARED-"cc -shared"} ;; |
364 | esac |
365 | fi |
366 | |
367 | # destination names for shared library if not defined above |
368 | SHAREDLIB=${SHAREDLIB-"libz$shared_ext"} |
369 | SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"} |
370 | SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"} |
371 | |
372 | echo >> configure.log |
373 | |
374 | # define functions for testing compiler and library characteristics and logging the results |
375 | |
376 | cat > $test.c <<EOF |
377 | #error error |
378 | EOF |
379 | if ($CC -c $CFLAGS $test.c) 2>/dev/null; then |
380 | try() |
381 | { |
382 | show $* |
383 | test "`( $* ) 2>&1 | tee -a configure.log`" = "" |
384 | } |
385 | echo - using any output from compiler to indicate an error >> configure.log |
386 | else |
387 | try() |
388 | { |
389 | show $* |
9e052883 |
390 | got=`( $* ) 2>&1` |
b24e7fce |
391 | ret=$? |
9e052883 |
392 | if test "$got" != ""; then |
393 | printf "%s\n" "$got" >> configure.log |
394 | fi |
b24e7fce |
395 | if test $ret -ne 0; then |
396 | echo "(exit code "$ret")" >> configure.log |
397 | fi |
398 | return $ret |
399 | } |
400 | fi |
401 | |
402 | tryboth() |
403 | { |
404 | show $* |
405 | got=`( $* ) 2>&1` |
406 | ret=$? |
9e052883 |
407 | if test "$got" != ""; then |
408 | printf "%s\n" "$got" >> configure.log |
409 | fi |
b24e7fce |
410 | if test $ret -ne 0; then |
9e052883 |
411 | echo "(exit code "$ret")" >> configure.log |
b24e7fce |
412 | return $ret |
413 | fi |
414 | test "$got" = "" |
415 | } |
416 | |
417 | cat > $test.c << EOF |
418 | int foo() { return 0; } |
419 | EOF |
420 | echo "Checking for obsessive-compulsive compiler options..." >> configure.log |
421 | if try $CC -c $CFLAGS $test.c; then |
422 | : |
423 | else |
424 | echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." | tee -a configure.log |
425 | leave 1 |
426 | fi |
427 | |
428 | echo >> configure.log |
429 | |
430 | # see if shared library build supported |
431 | cat > $test.c <<EOF |
432 | extern int getchar(); |
433 | int hello() {return getchar();} |
434 | EOF |
435 | if test $shared -eq 1; then |
436 | echo Checking for shared library support... | tee -a configure.log |
437 | # we must test in two steps (cc then ld), required at least on SunOS 4.x |
438 | if try $CC -w -c $SFLAGS $test.c && |
439 | try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then |
440 | echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log |
441 | elif test -z "$old_cc" -a -z "$old_cflags"; then |
442 | echo No shared library support. | tee -a configure.log |
443 | shared=0; |
444 | else |
445 | echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log |
446 | shared=0; |
447 | fi |
448 | fi |
449 | if test $shared -eq 0; then |
450 | LDSHARED="$CC" |
451 | ALL="static" |
452 | TEST="all teststatic" |
453 | SHAREDLIB="" |
454 | SHAREDLIBV="" |
455 | SHAREDLIBM="" |
456 | echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log |
457 | else |
458 | ALL="static shared" |
459 | TEST="all teststatic testshared" |
460 | fi |
461 | |
b24e7fce |
462 | echo >> configure.log |
463 | |
464 | # check for size_t |
465 | cat > $test.c <<EOF |
466 | #include <stdio.h> |
467 | #include <stdlib.h> |
468 | size_t dummy = 0; |
469 | EOF |
470 | if try $CC -c $CFLAGS $test.c; then |
471 | echo "Checking for size_t... Yes." | tee -a configure.log |
b24e7fce |
472 | else |
473 | echo "Checking for size_t... No." | tee -a configure.log |
9e052883 |
474 | # find a size_t integer type |
475 | # check for long long |
476 | cat > $test.c << EOF |
b24e7fce |
477 | long long dummy = 0; |
478 | EOF |
479 | if try $CC -c $CFLAGS $test.c; then |
480 | echo "Checking for long long... Yes." | tee -a configure.log |
481 | cat > $test.c <<EOF |
482 | #include <stdio.h> |
483 | int main(void) { |
484 | if (sizeof(void *) <= sizeof(int)) puts("int"); |
485 | else if (sizeof(void *) <= sizeof(long)) puts("long"); |
486 | else puts("z_longlong"); |
487 | return 0; |
488 | } |
489 | EOF |
490 | else |
491 | echo "Checking for long long... No." | tee -a configure.log |
492 | cat > $test.c <<EOF |
493 | #include <stdio.h> |
494 | int main(void) { |
495 | if (sizeof(void *) <= sizeof(int)) puts("int"); |
496 | else puts("long"); |
497 | return 0; |
498 | } |
499 | EOF |
500 | fi |
501 | if try $CC $CFLAGS -o $test $test.c; then |
502 | sizet=`./$test` |
503 | echo "Checking for a pointer-size integer type..." $sizet"." | tee -a configure.log |
9e052883 |
504 | CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}" |
505 | SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}" |
b24e7fce |
506 | else |
9e052883 |
507 | echo "Checking for a pointer-size integer type... not found." | tee -a configure.log |
b24e7fce |
508 | fi |
509 | fi |
510 | |
b24e7fce |
511 | echo >> configure.log |
512 | |
513 | # check for large file support, and if none, check for fseeko() |
514 | cat > $test.c <<EOF |
515 | #include <sys/types.h> |
516 | off64_t dummy = 0; |
517 | EOF |
518 | if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then |
519 | CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" |
520 | SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" |
521 | ALL="${ALL} all64" |
522 | TEST="${TEST} test64" |
523 | echo "Checking for off64_t... Yes." | tee -a configure.log |
524 | echo "Checking for fseeko... Yes." | tee -a configure.log |
525 | else |
526 | echo "Checking for off64_t... No." | tee -a configure.log |
527 | echo >> configure.log |
528 | cat > $test.c <<EOF |
529 | #include <stdio.h> |
530 | int main(void) { |
531 | fseeko(NULL, 0, 0); |
532 | return 0; |
533 | } |
534 | EOF |
535 | if try $CC $CFLAGS -o $test $test.c; then |
536 | echo "Checking for fseeko... Yes." | tee -a configure.log |
537 | else |
538 | CFLAGS="${CFLAGS} -DNO_FSEEKO" |
539 | SFLAGS="${SFLAGS} -DNO_FSEEKO" |
540 | echo "Checking for fseeko... No." | tee -a configure.log |
541 | fi |
542 | fi |
543 | |
544 | echo >> configure.log |
545 | |
546 | # check for strerror() for use by gz* functions |
547 | cat > $test.c <<EOF |
548 | #include <string.h> |
549 | #include <errno.h> |
550 | int main() { return strlen(strerror(errno)); } |
551 | EOF |
552 | if try $CC $CFLAGS -o $test $test.c; then |
553 | echo "Checking for strerror... Yes." | tee -a configure.log |
554 | else |
555 | CFLAGS="${CFLAGS} -DNO_STRERROR" |
556 | SFLAGS="${SFLAGS} -DNO_STRERROR" |
557 | echo "Checking for strerror... No." | tee -a configure.log |
558 | fi |
559 | |
560 | # copy clean zconf.h for subsequent edits |
561 | cp -p ${SRCDIR}zconf.h.in zconf.h |
562 | |
563 | echo >> configure.log |
564 | |
565 | # check for unistd.h and save result in zconf.h |
566 | cat > $test.c <<EOF |
567 | #include <unistd.h> |
568 | int main() { return 0; } |
569 | EOF |
570 | if try $CC -c $CFLAGS $test.c; then |
571 | sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
572 | mv zconf.temp.h zconf.h |
573 | echo "Checking for unistd.h... Yes." | tee -a configure.log |
574 | else |
575 | echo "Checking for unistd.h... No." | tee -a configure.log |
576 | fi |
577 | |
578 | echo >> configure.log |
579 | |
580 | # check for stdarg.h and save result in zconf.h |
581 | cat > $test.c <<EOF |
582 | #include <stdarg.h> |
583 | int main() { return 0; } |
584 | EOF |
585 | if try $CC -c $CFLAGS $test.c; then |
586 | sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
587 | mv zconf.temp.h zconf.h |
588 | echo "Checking for stdarg.h... Yes." | tee -a configure.log |
589 | else |
590 | echo "Checking for stdarg.h... No." | tee -a configure.log |
591 | fi |
592 | |
593 | # if the z_ prefix was requested, save that in zconf.h |
594 | if test $zprefix -eq 1; then |
595 | sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h |
596 | mv zconf.temp.h zconf.h |
597 | echo >> configure.log |
598 | echo "Using z_ prefix on all symbols." | tee -a configure.log |
599 | fi |
600 | |
601 | # if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists |
602 | if test $solo -eq 1; then |
603 | sed '/#define ZCONF_H/a\ |
604 | #define Z_SOLO |
605 | |
606 | ' < zconf.h > zconf.temp.h |
607 | mv zconf.temp.h zconf.h |
608 | OBJC='$(OBJZ)' |
609 | PIC_OBJC='$(PIC_OBJZ)' |
610 | fi |
611 | |
612 | # if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X |
613 | if test $cover -eq 1; then |
614 | CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage" |
615 | if test -n "$GCC_CLASSIC"; then |
616 | CC=$GCC_CLASSIC |
617 | fi |
618 | fi |
619 | |
620 | echo >> configure.log |
621 | |
622 | # conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions |
623 | # (using stdarg or not), with or without "n" (proving size of buffer), and with or without a |
624 | # return value. The most secure result is vsnprintf() with a return value. snprintf() with a |
625 | # return value is secure as well, but then gzprintf() will be limited to 20 arguments. |
626 | cat > $test.c <<EOF |
627 | #include <stdio.h> |
628 | #include <stdarg.h> |
629 | #include "zconf.h" |
630 | int main() |
631 | { |
632 | #ifndef STDC |
633 | choke me |
634 | #endif |
635 | return 0; |
636 | } |
637 | EOF |
638 | if try $CC -c $CFLAGS $test.c; then |
639 | echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log |
640 | |
641 | echo >> configure.log |
642 | cat > $test.c <<EOF |
643 | #include <stdio.h> |
644 | #include <stdarg.h> |
645 | int mytest(const char *fmt, ...) |
646 | { |
647 | char buf[20]; |
648 | va_list ap; |
649 | va_start(ap, fmt); |
650 | vsnprintf(buf, sizeof(buf), fmt, ap); |
651 | va_end(ap); |
652 | return 0; |
653 | } |
654 | int main() |
655 | { |
656 | return (mytest("Hello%d\n", 1)); |
657 | } |
658 | EOF |
659 | if try $CC $CFLAGS -o $test $test.c; then |
660 | echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log |
661 | |
662 | echo >> configure.log |
663 | cat >$test.c <<EOF |
664 | #include <stdio.h> |
665 | #include <stdarg.h> |
666 | int mytest(const char *fmt, ...) |
667 | { |
668 | int n; |
669 | char buf[20]; |
670 | va_list ap; |
671 | va_start(ap, fmt); |
672 | n = vsnprintf(buf, sizeof(buf), fmt, ap); |
673 | va_end(ap); |
674 | return n; |
675 | } |
676 | int main() |
677 | { |
678 | return (mytest("Hello%d\n", 1)); |
679 | } |
680 | EOF |
681 | |
682 | if try $CC -c $CFLAGS $test.c; then |
683 | echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log |
684 | else |
685 | CFLAGS="$CFLAGS -DHAS_vsnprintf_void" |
686 | SFLAGS="$SFLAGS -DHAS_vsnprintf_void" |
687 | echo "Checking for return value of vsnprintf()... No." | tee -a configure.log |
688 | echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log |
689 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
690 | echo " vulnerabilities." | tee -a configure.log |
691 | fi |
692 | else |
693 | CFLAGS="$CFLAGS -DNO_vsnprintf" |
694 | SFLAGS="$SFLAGS -DNO_vsnprintf" |
695 | echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log |
696 | echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log |
697 | echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
698 | echo " vulnerabilities." | tee -a configure.log |
699 | |
700 | echo >> configure.log |
701 | cat >$test.c <<EOF |
702 | #include <stdio.h> |
703 | #include <stdarg.h> |
704 | int mytest(const char *fmt, ...) |
705 | { |
706 | int n; |
707 | char buf[20]; |
708 | va_list ap; |
709 | va_start(ap, fmt); |
710 | n = vsprintf(buf, fmt, ap); |
711 | va_end(ap); |
712 | return n; |
713 | } |
714 | int main() |
715 | { |
716 | return (mytest("Hello%d\n", 1)); |
717 | } |
718 | EOF |
719 | |
720 | if try $CC -c $CFLAGS $test.c; then |
721 | echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log |
722 | else |
723 | CFLAGS="$CFLAGS -DHAS_vsprintf_void" |
724 | SFLAGS="$SFLAGS -DHAS_vsprintf_void" |
725 | echo "Checking for return value of vsprintf()... No." | tee -a configure.log |
726 | echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log |
727 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
728 | echo " vulnerabilities." | tee -a configure.log |
729 | fi |
730 | fi |
731 | else |
732 | echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log |
733 | |
734 | echo >> configure.log |
735 | cat >$test.c <<EOF |
736 | #include <stdio.h> |
737 | int mytest() |
738 | { |
739 | char buf[20]; |
740 | snprintf(buf, sizeof(buf), "%s", "foo"); |
741 | return 0; |
742 | } |
743 | int main() |
744 | { |
745 | return (mytest()); |
746 | } |
747 | EOF |
748 | |
749 | if try $CC $CFLAGS -o $test $test.c; then |
750 | echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log |
751 | |
752 | echo >> configure.log |
753 | cat >$test.c <<EOF |
754 | #include <stdio.h> |
755 | int mytest() |
756 | { |
757 | char buf[20]; |
758 | return snprintf(buf, sizeof(buf), "%s", "foo"); |
759 | } |
760 | int main() |
761 | { |
762 | return (mytest()); |
763 | } |
764 | EOF |
765 | |
766 | if try $CC -c $CFLAGS $test.c; then |
767 | echo "Checking for return value of snprintf()... Yes." | tee -a configure.log |
768 | else |
769 | CFLAGS="$CFLAGS -DHAS_snprintf_void" |
770 | SFLAGS="$SFLAGS -DHAS_snprintf_void" |
771 | echo "Checking for return value of snprintf()... No." | tee -a configure.log |
772 | echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log |
773 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
774 | echo " vulnerabilities." | tee -a configure.log |
775 | fi |
776 | else |
777 | CFLAGS="$CFLAGS -DNO_snprintf" |
778 | SFLAGS="$SFLAGS -DNO_snprintf" |
779 | echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log |
780 | echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log |
781 | echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
782 | echo " vulnerabilities." | tee -a configure.log |
783 | |
784 | echo >> configure.log |
785 | cat >$test.c <<EOF |
786 | #include <stdio.h> |
787 | int mytest() |
788 | { |
789 | char buf[20]; |
790 | return sprintf(buf, "%s", "foo"); |
791 | } |
792 | int main() |
793 | { |
794 | return (mytest()); |
795 | } |
796 | EOF |
797 | |
798 | if try $CC -c $CFLAGS $test.c; then |
799 | echo "Checking for return value of sprintf()... Yes." | tee -a configure.log |
800 | else |
801 | CFLAGS="$CFLAGS -DHAS_sprintf_void" |
802 | SFLAGS="$SFLAGS -DHAS_sprintf_void" |
803 | echo "Checking for return value of sprintf()... No." | tee -a configure.log |
804 | echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log |
805 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
806 | echo " vulnerabilities." | tee -a configure.log |
807 | fi |
808 | fi |
809 | fi |
810 | |
811 | # see if we can hide zlib internal symbols that are linked between separate source files |
812 | if test "$gcc" -eq 1; then |
813 | echo >> configure.log |
814 | cat > $test.c <<EOF |
815 | #define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) |
816 | int ZLIB_INTERNAL foo; |
817 | int main() |
818 | { |
819 | return 0; |
820 | } |
821 | EOF |
822 | if tryboth $CC -c $CFLAGS $test.c; then |
823 | CFLAGS="$CFLAGS -DHAVE_HIDDEN" |
824 | SFLAGS="$SFLAGS -DHAVE_HIDDEN" |
825 | echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log |
826 | else |
827 | echo "Checking for attribute(visibility) support... No." | tee -a configure.log |
828 | fi |
829 | fi |
830 | |
831 | # show the results in the log |
832 | echo >> configure.log |
833 | echo ALL = $ALL >> configure.log |
834 | echo AR = $AR >> configure.log |
835 | echo ARFLAGS = $ARFLAGS >> configure.log |
836 | echo CC = $CC >> configure.log |
837 | echo CFLAGS = $CFLAGS >> configure.log |
838 | echo CPP = $CPP >> configure.log |
839 | echo EXE = $EXE >> configure.log |
840 | echo LDCONFIG = $LDCONFIG >> configure.log |
841 | echo LDFLAGS = $LDFLAGS >> configure.log |
842 | echo LDSHARED = $LDSHARED >> configure.log |
843 | echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log |
844 | echo OBJC = $OBJC >> configure.log |
845 | echo PIC_OBJC = $PIC_OBJC >> configure.log |
846 | echo RANLIB = $RANLIB >> configure.log |
847 | echo SFLAGS = $SFLAGS >> configure.log |
848 | echo SHAREDLIB = $SHAREDLIB >> configure.log |
849 | echo SHAREDLIBM = $SHAREDLIBM >> configure.log |
850 | echo SHAREDLIBV = $SHAREDLIBV >> configure.log |
851 | echo STATICLIB = $STATICLIB >> configure.log |
852 | echo TEST = $TEST >> configure.log |
853 | echo VER = $VER >> configure.log |
b24e7fce |
854 | echo SRCDIR = $SRCDIR >> configure.log |
855 | echo exec_prefix = $exec_prefix >> configure.log |
856 | echo includedir = $includedir >> configure.log |
857 | echo libdir = $libdir >> configure.log |
858 | echo mandir = $mandir >> configure.log |
859 | echo prefix = $prefix >> configure.log |
860 | echo sharedlibdir = $sharedlibdir >> configure.log |
861 | echo uname = $uname >> configure.log |
862 | |
863 | # udpate Makefile with the configure results |
864 | sed < ${SRCDIR}Makefile.in " |
865 | /^CC *=/s#=.*#=$CC# |
866 | /^CFLAGS *=/s#=.*#=$CFLAGS# |
867 | /^SFLAGS *=/s#=.*#=$SFLAGS# |
868 | /^LDFLAGS *=/s#=.*#=$LDFLAGS# |
869 | /^LDSHARED *=/s#=.*#=$LDSHARED# |
870 | /^CPP *=/s#=.*#=$CPP# |
871 | /^STATICLIB *=/s#=.*#=$STATICLIB# |
872 | /^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
873 | /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
874 | /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
875 | /^AR *=/s#=.*#=$AR# |
876 | /^ARFLAGS *=/s#=.*#=$ARFLAGS# |
877 | /^RANLIB *=/s#=.*#=$RANLIB# |
878 | /^LDCONFIG *=/s#=.*#=$LDCONFIG# |
879 | /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# |
880 | /^EXE *=/s#=.*#=$EXE# |
881 | /^SRCDIR *=/s#=.*#=$SRCDIR# |
882 | /^ZINC *=/s#=.*#=$ZINC# |
883 | /^ZINCOUT *=/s#=.*#=$ZINCOUT# |
884 | /^prefix *=/s#=.*#=$prefix# |
885 | /^exec_prefix *=/s#=.*#=$exec_prefix# |
886 | /^libdir *=/s#=.*#=$libdir# |
887 | /^sharedlibdir *=/s#=.*#=$sharedlibdir# |
888 | /^includedir *=/s#=.*#=$includedir# |
889 | /^mandir *=/s#=.*#=$mandir# |
890 | /^OBJC *=/s#=.*#= $OBJC# |
891 | /^PIC_OBJC *=/s#=.*#= $PIC_OBJC# |
892 | /^all: */s#:.*#: $ALL# |
893 | /^test: */s#:.*#: $TEST# |
894 | " > Makefile |
895 | |
896 | # create zlib.pc with the configure results |
897 | sed < ${SRCDIR}zlib.pc.in " |
898 | /^CC *=/s#=.*#=$CC# |
899 | /^CFLAGS *=/s#=.*#=$CFLAGS# |
900 | /^CPP *=/s#=.*#=$CPP# |
901 | /^LDSHARED *=/s#=.*#=$LDSHARED# |
902 | /^STATICLIB *=/s#=.*#=$STATICLIB# |
903 | /^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
904 | /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
905 | /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
906 | /^AR *=/s#=.*#=$AR# |
907 | /^ARFLAGS *=/s#=.*#=$ARFLAGS# |
908 | /^RANLIB *=/s#=.*#=$RANLIB# |
909 | /^EXE *=/s#=.*#=$EXE# |
910 | /^prefix *=/s#=.*#=$prefix# |
911 | /^exec_prefix *=/s#=.*#=$exec_prefix# |
912 | /^libdir *=/s#=.*#=$libdir# |
913 | /^sharedlibdir *=/s#=.*#=$sharedlibdir# |
914 | /^includedir *=/s#=.*#=$includedir# |
915 | /^mandir *=/s#=.*#=$mandir# |
916 | /^LDFLAGS *=/s#=.*#=$LDFLAGS# |
917 | " | sed -e " |
918 | s/\@VERSION\@/$VER/g; |
919 | " > zlib.pc |
920 | |
921 | # done |
922 | leave 0 |