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 $SRCDIR = "."; then |
24 | ZINC="" |
25 | ZINCOUT="-I." |
26 | SRCDIR="" |
27 | else |
648db22b |
28 | ZINC='-I. -include zconf.h' |
b24e7fce |
29 | ZINCOUT='-I. -I$(SRCDIR)' |
30 | SRCDIR="$SRCDIR/" |
31 | fi |
32 | |
33 | # set command prefix for cross-compilation |
34 | if [ -n "${CHOST}" ]; then |
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35 | uname=${CHOST} |
36 | mname=${CHOST} |
b24e7fce |
37 | CROSS_PREFIX="${CHOST}-" |
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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` |
648db22b |
47 | VER3=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\(\\.[0-9]\{1,\}\)\{1,2\}\).*/\1/p'` |
48 | VER1=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\)\\..*/\1/p'` |
b24e7fce |
49 | |
50 | # establish commands for library building |
51 | if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
52 | AR=${AR-"${CROSS_PREFIX}ar"} |
53 | test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
54 | else |
55 | AR=${AR-"ar"} |
56 | test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
57 | fi |
58 | ARFLAGS=${ARFLAGS-"rc"} |
59 | if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
60 | RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} |
61 | test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log |
62 | else |
63 | RANLIB=${RANLIB-"ranlib"} |
64 | fi |
65 | if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
66 | NM=${NM-"${CROSS_PREFIX}nm"} |
67 | test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log |
68 | else |
69 | NM=${NM-"nm"} |
70 | fi |
71 | |
72 | # set defaults before processing command line options |
73 | LDCONFIG=${LDCONFIG-"ldconfig"} |
74 | LDSHAREDLIBC="${LDSHAREDLIBC--lc}" |
75 | ARCHS= |
76 | prefix=${prefix-/usr/local} |
77 | exec_prefix=${exec_prefix-'${prefix}'} |
78 | libdir=${libdir-'${exec_prefix}/lib'} |
79 | sharedlibdir=${sharedlibdir-'${libdir}'} |
80 | includedir=${includedir-'${prefix}/include'} |
81 | mandir=${mandir-'${prefix}/share/man'} |
82 | shared_ext='.so' |
83 | shared=1 |
84 | solo=0 |
85 | cover=0 |
86 | zprefix=0 |
87 | zconst=0 |
88 | build64=0 |
89 | gcc=0 |
90 | warn=0 |
91 | debug=0 |
648db22b |
92 | address=0 |
93 | memory=0 |
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94 | old_cc="$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 |
648db22b |
105 | rm -rf $test.[co] $test $test$shared_ext $test.gcno $test.dSYM ./--version |
b24e7fce |
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 ;; |
648db22b |
144 | --sanitize) address=1; shift ;; |
145 | --address) address=1; shift ;; |
146 | --memory) memory=1; shift ;; |
b24e7fce |
147 | *) |
148 | echo "unknown option: $1" | tee -a configure.log |
149 | echo "$0 --help for help" | tee -a configure.log |
150 | leave 1;; |
151 | esac |
152 | done |
153 | |
154 | # temporary file name |
155 | test=ztest$$ |
156 | |
157 | # put arguments in log, also put test file in log if used in arguments |
158 | show() |
159 | { |
160 | case "$*" in |
161 | *$test.c*) |
162 | echo === $test.c === >> configure.log |
163 | cat $test.c >> configure.log |
164 | echo === >> configure.log;; |
165 | esac |
166 | echo $* >> configure.log |
167 | } |
168 | |
169 | # check for gcc vs. cc and set compile and link flags based on the system identified by uname |
170 | cat > $test.c <<EOF |
171 | extern int getchar(); |
172 | int hello() {return getchar();} |
173 | EOF |
174 | |
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175 | if test -z "$CC"; then |
176 | echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log |
177 | if ${CROSS_PREFIX}gcc -v >/dev/null 2>&1; then |
178 | cc=${CROSS_PREFIX}gcc |
179 | else |
180 | cc=${CROSS_PREFIX}cc |
181 | fi |
182 | else |
183 | cc=${CC} |
184 | fi |
185 | |
b24e7fce |
186 | case "$cc" in |
187 | *gcc*) gcc=1 ;; |
188 | *clang*) gcc=1 ;; |
189 | esac |
190 | case `$cc -v 2>&1` in |
191 | *gcc*) gcc=1 ;; |
192 | *clang*) gcc=1 ;; |
193 | esac |
194 | |
195 | show $cc -c $test.c |
196 | if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then |
197 | echo ... using gcc >> configure.log |
198 | CC="$cc" |
199 | CFLAGS="${CFLAGS--O3}" |
200 | SFLAGS="${CFLAGS--O3} -fPIC" |
201 | if test "$ARCHS"; then |
202 | CFLAGS="${CFLAGS} ${ARCHS}" |
203 | LDFLAGS="${LDFLAGS} ${ARCHS}" |
204 | fi |
205 | if test $build64 -eq 1; then |
206 | CFLAGS="${CFLAGS} -m64" |
207 | SFLAGS="${SFLAGS} -m64" |
208 | fi |
209 | if test "$warn" -eq 1; then |
210 | if test "$zconst" -eq 1; then |
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211 | CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -DZLIB_CONST" |
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212 | else |
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213 | CFLAGS="${CFLAGS} -Wall -Wextra" |
b24e7fce |
214 | fi |
215 | fi |
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216 | if test $address -eq 1; then |
217 | CFLAGS="${CFLAGS} -g -fsanitize=address -fno-omit-frame-pointer" |
218 | fi |
219 | if test $memory -eq 1; then |
220 | CFLAGS="${CFLAGS} -g -fsanitize=memory -fno-omit-frame-pointer" |
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221 | fi |
b24e7fce |
222 | if test $debug -eq 1; then |
223 | CFLAGS="${CFLAGS} -DZLIB_DEBUG" |
224 | SFLAGS="${SFLAGS} -DZLIB_DEBUG" |
225 | fi |
226 | if test -z "$uname"; then |
227 | uname=`(uname -s || echo unknown) 2>/dev/null` |
228 | fi |
229 | case "$uname" in |
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230 | Linux* | linux* | *-linux* | GNU | GNU/* | solaris*) |
231 | case "$mname" in |
232 | *sparc*) |
233 | LDFLAGS="${LDFLAGS} -Wl,--no-warn-rwx-segments" ;; |
234 | esac |
b24e7fce |
235 | LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;; |
236 | *BSD | *bsd* | DragonFly) |
237 | LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} |
238 | LDCONFIG="ldconfig -m" ;; |
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239 | CYGWIN* | Cygwin* | cygwin* | *-cygwin* | OS/2*) |
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240 | EXE='.exe' ;; |
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241 | MINGW* | mingw* | *-mingw*) |
b24e7fce |
242 | rm -f $test.[co] $test $test$shared_ext |
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243 | echo "If this doesn't work for you, try win32/Makefile.gcc." | tee -a configure.log |
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244 | LDSHARED=${LDSHARED-"$cc -shared"} |
245 | LDSHAREDLIBC="" |
246 | EXE='.exe' ;; |
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247 | QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4 |
248 | # (alain.bonnefoy@icbt.com) |
249 | LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;; |
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250 | HP-UX*) |
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251 | LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} |
252 | case `(uname -m || echo unknown) 2>/dev/null` in |
253 | ia64) |
254 | shared_ext='.so' |
255 | SHAREDLIB='libz.so' ;; |
256 | *) |
257 | shared_ext='.sl' |
258 | SHAREDLIB='libz.sl' ;; |
259 | esac ;; |
260 | AIX*) |
261 | LDFLAGS="${LDFLAGS} -Wl,-brtl" ;; |
262 | Darwin* | darwin* | *-darwin*) |
263 | shared_ext='.dylib' |
264 | SHAREDLIB=libz$shared_ext |
265 | SHAREDLIBV=libz.$VER$shared_ext |
266 | SHAREDLIBM=libz.$VER1$shared_ext |
267 | LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} |
648db22b |
268 | if "${CROSS_PREFIX}libtool" -V 2>&1 | grep Apple > /dev/null; then |
269 | AR="${CROSS_PREFIX}libtool" |
270 | elif libtool -V 2>&1 | grep Apple > /dev/null; then |
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271 | AR="libtool" |
272 | else |
273 | AR="/usr/bin/libtool" |
274 | fi |
275 | ARFLAGS="-o" ;; |
276 | *) |
277 | LDSHARED=${LDSHARED-"$cc -shared"} ;; |
b24e7fce |
278 | esac |
279 | else |
280 | # find system name and corresponding cc options |
281 | CC=${CC-cc} |
282 | gcc=0 |
283 | echo ... using $CC >> configure.log |
284 | if test -z "$uname"; then |
285 | uname=`(uname -sr || echo unknown) 2>/dev/null` |
286 | fi |
287 | case "$uname" in |
288 | HP-UX*) SFLAGS=${CFLAGS-"-O +z"} |
289 | CFLAGS=${CFLAGS-"-O"} |
290 | # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} |
291 | LDSHARED=${LDSHARED-"ld -b"} |
292 | case `(uname -m || echo unknown) 2>/dev/null` in |
293 | ia64) |
294 | shared_ext='.so' |
295 | SHAREDLIB='libz.so' ;; |
296 | *) |
297 | shared_ext='.sl' |
298 | SHAREDLIB='libz.sl' ;; |
299 | esac ;; |
300 | IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} |
301 | CFLAGS=${CFLAGS-"-ansi -O2"} |
302 | LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
303 | OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} |
304 | CFLAGS=${CFLAGS-"-O -std1"} |
305 | LDFLAGS="${LDFLAGS} -Wl,-rpath,." |
306 | LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; |
307 | OSF1*) SFLAGS=${CFLAGS-"-O -std1"} |
308 | CFLAGS=${CFLAGS-"-O -std1"} |
309 | LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
310 | QNX*) SFLAGS=${CFLAGS-"-4 -O"} |
311 | CFLAGS=${CFLAGS-"-4 -O"} |
312 | LDSHARED=${LDSHARED-"cc"} |
313 | RANLIB=${RANLIB-"true"} |
314 | AR="cc" |
315 | ARFLAGS="-A" ;; |
316 | SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} |
317 | CFLAGS=${CFLAGS-"-O3"} |
318 | LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; |
319 | SunOS\ 5* | solaris*) |
320 | LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"} |
321 | SFLAGS=${CFLAGS-"-fast -KPIC"} |
322 | CFLAGS=${CFLAGS-"-fast"} |
323 | if test $build64 -eq 1; then |
324 | # old versions of SunPRO/Workshop/Studio don't support -m64, |
325 | # but newer ones do. Check for it. |
326 | flag64=`$CC -flags | egrep -- '^-m64'` |
327 | if test x"$flag64" != x"" ; then |
328 | CFLAGS="${CFLAGS} -m64" |
329 | SFLAGS="${SFLAGS} -m64" |
330 | else |
331 | case `(uname -m || echo unknown) 2>/dev/null` in |
332 | i86*) |
333 | SFLAGS="$SFLAGS -xarch=amd64" |
334 | CFLAGS="$CFLAGS -xarch=amd64" ;; |
335 | *) |
336 | SFLAGS="$SFLAGS -xarch=v9" |
337 | CFLAGS="$CFLAGS -xarch=v9" ;; |
338 | esac |
339 | fi |
340 | fi |
341 | if test -n "$ZINC"; then |
342 | ZINC='-I- -I. -I$(SRCDIR)' |
343 | fi |
344 | ;; |
345 | SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} |
346 | CFLAGS=${CFLAGS-"-O2"} |
347 | LDSHARED=${LDSHARED-"ld"} ;; |
348 | SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} |
349 | CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} |
350 | LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; |
351 | UNIX_System_V\ 4.2.0) |
352 | SFLAGS=${CFLAGS-"-KPIC -O"} |
353 | CFLAGS=${CFLAGS-"-O"} |
354 | LDSHARED=${LDSHARED-"cc -G"} ;; |
355 | UNIX_SV\ 4.2MP) |
356 | SFLAGS=${CFLAGS-"-Kconform_pic -O"} |
357 | CFLAGS=${CFLAGS-"-O"} |
358 | LDSHARED=${LDSHARED-"cc -G"} ;; |
359 | OpenUNIX\ 5) |
360 | SFLAGS=${CFLAGS-"-KPIC -O"} |
361 | CFLAGS=${CFLAGS-"-O"} |
362 | LDSHARED=${LDSHARED-"cc -G"} ;; |
363 | AIX*) # Courtesy of dbakker@arrayasolutions.com |
364 | SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
365 | CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
366 | LDSHARED=${LDSHARED-"xlc -G"} ;; |
367 | # send working options for other systems to zlib@gzip.org |
368 | *) SFLAGS=${CFLAGS-"-O"} |
369 | CFLAGS=${CFLAGS-"-O"} |
370 | LDSHARED=${LDSHARED-"cc -shared"} ;; |
371 | esac |
372 | fi |
373 | |
374 | # destination names for shared library if not defined above |
375 | SHAREDLIB=${SHAREDLIB-"libz$shared_ext"} |
376 | SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"} |
377 | SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"} |
378 | |
379 | echo >> configure.log |
380 | |
381 | # define functions for testing compiler and library characteristics and logging the results |
382 | |
383 | cat > $test.c <<EOF |
384 | #error error |
385 | EOF |
386 | if ($CC -c $CFLAGS $test.c) 2>/dev/null; then |
387 | try() |
388 | { |
389 | show $* |
390 | test "`( $* ) 2>&1 | tee -a configure.log`" = "" |
391 | } |
392 | echo - using any output from compiler to indicate an error >> configure.log |
393 | else |
394 | try() |
395 | { |
396 | show $* |
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397 | got=`( $* ) 2>&1` |
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398 | ret=$? |
9e052883 |
399 | if test "$got" != ""; then |
400 | printf "%s\n" "$got" >> configure.log |
401 | fi |
b24e7fce |
402 | if test $ret -ne 0; then |
403 | echo "(exit code "$ret")" >> configure.log |
404 | fi |
405 | return $ret |
406 | } |
407 | fi |
408 | |
409 | tryboth() |
410 | { |
411 | show $* |
412 | got=`( $* ) 2>&1` |
413 | ret=$? |
9e052883 |
414 | if test "$got" != ""; then |
415 | printf "%s\n" "$got" >> configure.log |
416 | fi |
b24e7fce |
417 | if test $ret -ne 0; then |
9e052883 |
418 | echo "(exit code "$ret")" >> configure.log |
b24e7fce |
419 | return $ret |
420 | fi |
421 | test "$got" = "" |
422 | } |
423 | |
424 | cat > $test.c << EOF |
425 | int foo() { return 0; } |
426 | EOF |
427 | echo "Checking for obsessive-compulsive compiler options..." >> configure.log |
428 | if try $CC -c $CFLAGS $test.c; then |
429 | : |
430 | else |
431 | echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." | tee -a configure.log |
432 | leave 1 |
433 | fi |
434 | |
435 | echo >> configure.log |
436 | |
437 | # see if shared library build supported |
438 | cat > $test.c <<EOF |
439 | extern int getchar(); |
440 | int hello() {return getchar();} |
441 | EOF |
442 | if test $shared -eq 1; then |
443 | echo Checking for shared library support... | tee -a configure.log |
444 | # we must test in two steps (cc then ld), required at least on SunOS 4.x |
648db22b |
445 | if try $CC -c $SFLAGS $test.c && |
b24e7fce |
446 | try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then |
447 | echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log |
448 | elif test -z "$old_cc" -a -z "$old_cflags"; then |
449 | echo No shared library support. | tee -a configure.log |
450 | shared=0; |
451 | else |
452 | echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log |
453 | shared=0; |
454 | fi |
455 | fi |
456 | if test $shared -eq 0; then |
457 | LDSHARED="$CC" |
458 | ALL="static" |
459 | TEST="all teststatic" |
460 | SHAREDLIB="" |
461 | SHAREDLIBV="" |
462 | SHAREDLIBM="" |
463 | echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log |
464 | else |
465 | ALL="static shared" |
466 | TEST="all teststatic testshared" |
467 | fi |
468 | |
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469 | echo >> configure.log |
470 | |
471 | # check for size_t |
472 | cat > $test.c <<EOF |
473 | #include <stdio.h> |
474 | #include <stdlib.h> |
475 | size_t dummy = 0; |
476 | EOF |
477 | if try $CC -c $CFLAGS $test.c; then |
478 | echo "Checking for size_t... Yes." | tee -a configure.log |
b24e7fce |
479 | else |
480 | echo "Checking for size_t... No." | tee -a configure.log |
9e052883 |
481 | # find a size_t integer type |
482 | # check for long long |
483 | cat > $test.c << EOF |
b24e7fce |
484 | long long dummy = 0; |
485 | EOF |
486 | if try $CC -c $CFLAGS $test.c; then |
487 | echo "Checking for long long... Yes." | tee -a configure.log |
488 | cat > $test.c <<EOF |
489 | #include <stdio.h> |
490 | int main(void) { |
491 | if (sizeof(void *) <= sizeof(int)) puts("int"); |
492 | else if (sizeof(void *) <= sizeof(long)) puts("long"); |
493 | else puts("z_longlong"); |
494 | return 0; |
495 | } |
496 | EOF |
497 | else |
498 | echo "Checking for long long... No." | tee -a configure.log |
499 | cat > $test.c <<EOF |
500 | #include <stdio.h> |
501 | int main(void) { |
502 | if (sizeof(void *) <= sizeof(int)) puts("int"); |
503 | else puts("long"); |
504 | return 0; |
505 | } |
506 | EOF |
507 | fi |
508 | if try $CC $CFLAGS -o $test $test.c; then |
509 | sizet=`./$test` |
510 | echo "Checking for a pointer-size integer type..." $sizet"." | tee -a configure.log |
9e052883 |
511 | CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}" |
512 | SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}" |
b24e7fce |
513 | else |
9e052883 |
514 | echo "Checking for a pointer-size integer type... not found." | tee -a configure.log |
b24e7fce |
515 | fi |
516 | fi |
517 | |
b24e7fce |
518 | echo >> configure.log |
519 | |
520 | # check for large file support, and if none, check for fseeko() |
521 | cat > $test.c <<EOF |
522 | #include <sys/types.h> |
523 | off64_t dummy = 0; |
524 | EOF |
525 | if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then |
526 | CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" |
527 | SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" |
528 | ALL="${ALL} all64" |
529 | TEST="${TEST} test64" |
530 | echo "Checking for off64_t... Yes." | tee -a configure.log |
531 | echo "Checking for fseeko... Yes." | tee -a configure.log |
532 | else |
533 | echo "Checking for off64_t... No." | tee -a configure.log |
534 | echo >> configure.log |
535 | cat > $test.c <<EOF |
536 | #include <stdio.h> |
537 | int main(void) { |
538 | fseeko(NULL, 0, 0); |
539 | return 0; |
540 | } |
541 | EOF |
542 | if try $CC $CFLAGS -o $test $test.c; then |
543 | echo "Checking for fseeko... Yes." | tee -a configure.log |
544 | else |
545 | CFLAGS="${CFLAGS} -DNO_FSEEKO" |
546 | SFLAGS="${SFLAGS} -DNO_FSEEKO" |
547 | echo "Checking for fseeko... No." | tee -a configure.log |
548 | fi |
549 | fi |
550 | |
551 | echo >> configure.log |
552 | |
553 | # check for strerror() for use by gz* functions |
554 | cat > $test.c <<EOF |
555 | #include <string.h> |
556 | #include <errno.h> |
557 | int main() { return strlen(strerror(errno)); } |
558 | EOF |
559 | if try $CC $CFLAGS -o $test $test.c; then |
560 | echo "Checking for strerror... Yes." | tee -a configure.log |
561 | else |
562 | CFLAGS="${CFLAGS} -DNO_STRERROR" |
563 | SFLAGS="${SFLAGS} -DNO_STRERROR" |
564 | echo "Checking for strerror... No." | tee -a configure.log |
565 | fi |
566 | |
567 | # copy clean zconf.h for subsequent edits |
568 | cp -p ${SRCDIR}zconf.h.in zconf.h |
569 | |
570 | echo >> configure.log |
571 | |
572 | # check for unistd.h and save result in zconf.h |
573 | cat > $test.c <<EOF |
574 | #include <unistd.h> |
575 | int main() { return 0; } |
576 | EOF |
577 | if try $CC -c $CFLAGS $test.c; then |
578 | sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
579 | mv zconf.temp.h zconf.h |
580 | echo "Checking for unistd.h... Yes." | tee -a configure.log |
581 | else |
582 | echo "Checking for unistd.h... No." | tee -a configure.log |
583 | fi |
584 | |
585 | echo >> configure.log |
586 | |
587 | # check for stdarg.h and save result in zconf.h |
588 | cat > $test.c <<EOF |
589 | #include <stdarg.h> |
590 | int main() { return 0; } |
591 | EOF |
592 | if try $CC -c $CFLAGS $test.c; then |
593 | sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
594 | mv zconf.temp.h zconf.h |
595 | echo "Checking for stdarg.h... Yes." | tee -a configure.log |
596 | else |
597 | echo "Checking for stdarg.h... No." | tee -a configure.log |
598 | fi |
599 | |
600 | # if the z_ prefix was requested, save that in zconf.h |
601 | if test $zprefix -eq 1; then |
602 | sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h |
603 | mv zconf.temp.h zconf.h |
604 | echo >> configure.log |
605 | echo "Using z_ prefix on all symbols." | tee -a configure.log |
606 | fi |
607 | |
608 | # if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists |
609 | if test $solo -eq 1; then |
610 | sed '/#define ZCONF_H/a\ |
611 | #define Z_SOLO |
612 | |
613 | ' < zconf.h > zconf.temp.h |
614 | mv zconf.temp.h zconf.h |
615 | OBJC='$(OBJZ)' |
616 | PIC_OBJC='$(PIC_OBJZ)' |
617 | fi |
618 | |
619 | # if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X |
620 | if test $cover -eq 1; then |
621 | CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage" |
622 | if test -n "$GCC_CLASSIC"; then |
623 | CC=$GCC_CLASSIC |
624 | fi |
625 | fi |
626 | |
627 | echo >> configure.log |
628 | |
629 | # conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions |
630 | # (using stdarg or not), with or without "n" (proving size of buffer), and with or without a |
631 | # return value. The most secure result is vsnprintf() with a return value. snprintf() with a |
632 | # return value is secure as well, but then gzprintf() will be limited to 20 arguments. |
633 | cat > $test.c <<EOF |
634 | #include <stdio.h> |
635 | #include <stdarg.h> |
636 | #include "zconf.h" |
637 | int main() |
638 | { |
639 | #ifndef STDC |
640 | choke me |
641 | #endif |
642 | return 0; |
643 | } |
644 | EOF |
645 | if try $CC -c $CFLAGS $test.c; then |
646 | echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log |
647 | |
648 | echo >> configure.log |
649 | cat > $test.c <<EOF |
650 | #include <stdio.h> |
651 | #include <stdarg.h> |
652 | int mytest(const char *fmt, ...) |
653 | { |
654 | char buf[20]; |
655 | va_list ap; |
656 | va_start(ap, fmt); |
657 | vsnprintf(buf, sizeof(buf), fmt, ap); |
658 | va_end(ap); |
659 | return 0; |
660 | } |
661 | int main() |
662 | { |
663 | return (mytest("Hello%d\n", 1)); |
664 | } |
665 | EOF |
666 | if try $CC $CFLAGS -o $test $test.c; then |
667 | echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log |
668 | |
669 | echo >> configure.log |
670 | cat >$test.c <<EOF |
671 | #include <stdio.h> |
672 | #include <stdarg.h> |
673 | int mytest(const char *fmt, ...) |
674 | { |
675 | int n; |
676 | char buf[20]; |
677 | va_list ap; |
678 | va_start(ap, fmt); |
679 | n = vsnprintf(buf, sizeof(buf), fmt, ap); |
680 | va_end(ap); |
681 | return n; |
682 | } |
683 | int main() |
684 | { |
685 | return (mytest("Hello%d\n", 1)); |
686 | } |
687 | EOF |
688 | |
689 | if try $CC -c $CFLAGS $test.c; then |
690 | echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log |
691 | else |
692 | CFLAGS="$CFLAGS -DHAS_vsnprintf_void" |
693 | SFLAGS="$SFLAGS -DHAS_vsnprintf_void" |
694 | echo "Checking for return value of vsnprintf()... No." | tee -a configure.log |
695 | echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log |
696 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
697 | echo " vulnerabilities." | tee -a configure.log |
698 | fi |
699 | else |
700 | CFLAGS="$CFLAGS -DNO_vsnprintf" |
701 | SFLAGS="$SFLAGS -DNO_vsnprintf" |
702 | echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log |
703 | echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log |
704 | echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
705 | echo " vulnerabilities." | tee -a configure.log |
706 | |
707 | echo >> configure.log |
708 | cat >$test.c <<EOF |
709 | #include <stdio.h> |
710 | #include <stdarg.h> |
711 | int mytest(const char *fmt, ...) |
712 | { |
713 | int n; |
714 | char buf[20]; |
715 | va_list ap; |
716 | va_start(ap, fmt); |
717 | n = vsprintf(buf, fmt, ap); |
718 | va_end(ap); |
719 | return n; |
720 | } |
721 | int main() |
722 | { |
723 | return (mytest("Hello%d\n", 1)); |
724 | } |
725 | EOF |
726 | |
727 | if try $CC -c $CFLAGS $test.c; then |
728 | echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log |
729 | else |
730 | CFLAGS="$CFLAGS -DHAS_vsprintf_void" |
731 | SFLAGS="$SFLAGS -DHAS_vsprintf_void" |
732 | echo "Checking for return value of vsprintf()... No." | tee -a configure.log |
733 | echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log |
734 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
735 | echo " vulnerabilities." | tee -a configure.log |
736 | fi |
737 | fi |
738 | else |
739 | echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log |
740 | |
741 | echo >> configure.log |
742 | cat >$test.c <<EOF |
743 | #include <stdio.h> |
744 | int mytest() |
745 | { |
746 | char buf[20]; |
747 | snprintf(buf, sizeof(buf), "%s", "foo"); |
748 | return 0; |
749 | } |
750 | int main() |
751 | { |
752 | return (mytest()); |
753 | } |
754 | EOF |
755 | |
756 | if try $CC $CFLAGS -o $test $test.c; then |
757 | echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log |
758 | |
759 | echo >> configure.log |
760 | cat >$test.c <<EOF |
761 | #include <stdio.h> |
762 | int mytest() |
763 | { |
764 | char buf[20]; |
765 | return snprintf(buf, sizeof(buf), "%s", "foo"); |
766 | } |
767 | int main() |
768 | { |
769 | return (mytest()); |
770 | } |
771 | EOF |
772 | |
773 | if try $CC -c $CFLAGS $test.c; then |
774 | echo "Checking for return value of snprintf()... Yes." | tee -a configure.log |
775 | else |
776 | CFLAGS="$CFLAGS -DHAS_snprintf_void" |
777 | SFLAGS="$SFLAGS -DHAS_snprintf_void" |
778 | echo "Checking for return value of snprintf()... No." | tee -a configure.log |
779 | echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log |
780 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
781 | echo " vulnerabilities." | tee -a configure.log |
782 | fi |
783 | else |
784 | CFLAGS="$CFLAGS -DNO_snprintf" |
785 | SFLAGS="$SFLAGS -DNO_snprintf" |
786 | echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log |
787 | echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log |
788 | echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
789 | echo " vulnerabilities." | tee -a configure.log |
790 | |
791 | echo >> configure.log |
792 | cat >$test.c <<EOF |
793 | #include <stdio.h> |
794 | int mytest() |
795 | { |
796 | char buf[20]; |
797 | return sprintf(buf, "%s", "foo"); |
798 | } |
799 | int main() |
800 | { |
801 | return (mytest()); |
802 | } |
803 | EOF |
804 | |
805 | if try $CC -c $CFLAGS $test.c; then |
806 | echo "Checking for return value of sprintf()... Yes." | tee -a configure.log |
807 | else |
808 | CFLAGS="$CFLAGS -DHAS_sprintf_void" |
809 | SFLAGS="$SFLAGS -DHAS_sprintf_void" |
810 | echo "Checking for return value of sprintf()... No." | tee -a configure.log |
811 | echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log |
812 | echo " can build but will be open to possible string-format security" | tee -a configure.log |
813 | echo " vulnerabilities." | tee -a configure.log |
814 | fi |
815 | fi |
816 | fi |
817 | |
818 | # see if we can hide zlib internal symbols that are linked between separate source files |
819 | if test "$gcc" -eq 1; then |
820 | echo >> configure.log |
821 | cat > $test.c <<EOF |
822 | #define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) |
823 | int ZLIB_INTERNAL foo; |
824 | int main() |
825 | { |
826 | return 0; |
827 | } |
828 | EOF |
829 | if tryboth $CC -c $CFLAGS $test.c; then |
830 | CFLAGS="$CFLAGS -DHAVE_HIDDEN" |
831 | SFLAGS="$SFLAGS -DHAVE_HIDDEN" |
832 | echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log |
833 | else |
834 | echo "Checking for attribute(visibility) support... No." | tee -a configure.log |
835 | fi |
836 | fi |
837 | |
838 | # show the results in the log |
839 | echo >> configure.log |
840 | echo ALL = $ALL >> configure.log |
841 | echo AR = $AR >> configure.log |
842 | echo ARFLAGS = $ARFLAGS >> configure.log |
843 | echo CC = $CC >> configure.log |
844 | echo CFLAGS = $CFLAGS >> configure.log |
845 | echo CPP = $CPP >> configure.log |
846 | echo EXE = $EXE >> configure.log |
847 | echo LDCONFIG = $LDCONFIG >> configure.log |
848 | echo LDFLAGS = $LDFLAGS >> configure.log |
849 | echo LDSHARED = $LDSHARED >> configure.log |
850 | echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log |
851 | echo OBJC = $OBJC >> configure.log |
852 | echo PIC_OBJC = $PIC_OBJC >> configure.log |
853 | echo RANLIB = $RANLIB >> configure.log |
854 | echo SFLAGS = $SFLAGS >> configure.log |
855 | echo SHAREDLIB = $SHAREDLIB >> configure.log |
856 | echo SHAREDLIBM = $SHAREDLIBM >> configure.log |
857 | echo SHAREDLIBV = $SHAREDLIBV >> configure.log |
858 | echo STATICLIB = $STATICLIB >> configure.log |
859 | echo TEST = $TEST >> configure.log |
860 | echo VER = $VER >> configure.log |
b24e7fce |
861 | echo SRCDIR = $SRCDIR >> configure.log |
862 | echo exec_prefix = $exec_prefix >> configure.log |
863 | echo includedir = $includedir >> configure.log |
864 | echo libdir = $libdir >> configure.log |
865 | echo mandir = $mandir >> configure.log |
866 | echo prefix = $prefix >> configure.log |
867 | echo sharedlibdir = $sharedlibdir >> configure.log |
868 | echo uname = $uname >> configure.log |
869 | |
648db22b |
870 | # update Makefile with the configure results |
b24e7fce |
871 | sed < ${SRCDIR}Makefile.in " |
872 | /^CC *=/s#=.*#=$CC# |
873 | /^CFLAGS *=/s#=.*#=$CFLAGS# |
874 | /^SFLAGS *=/s#=.*#=$SFLAGS# |
875 | /^LDFLAGS *=/s#=.*#=$LDFLAGS# |
876 | /^LDSHARED *=/s#=.*#=$LDSHARED# |
877 | /^CPP *=/s#=.*#=$CPP# |
878 | /^STATICLIB *=/s#=.*#=$STATICLIB# |
879 | /^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
880 | /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
881 | /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
882 | /^AR *=/s#=.*#=$AR# |
883 | /^ARFLAGS *=/s#=.*#=$ARFLAGS# |
884 | /^RANLIB *=/s#=.*#=$RANLIB# |
885 | /^LDCONFIG *=/s#=.*#=$LDCONFIG# |
886 | /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# |
887 | /^EXE *=/s#=.*#=$EXE# |
888 | /^SRCDIR *=/s#=.*#=$SRCDIR# |
889 | /^ZINC *=/s#=.*#=$ZINC# |
890 | /^ZINCOUT *=/s#=.*#=$ZINCOUT# |
891 | /^prefix *=/s#=.*#=$prefix# |
892 | /^exec_prefix *=/s#=.*#=$exec_prefix# |
893 | /^libdir *=/s#=.*#=$libdir# |
894 | /^sharedlibdir *=/s#=.*#=$sharedlibdir# |
895 | /^includedir *=/s#=.*#=$includedir# |
896 | /^mandir *=/s#=.*#=$mandir# |
897 | /^OBJC *=/s#=.*#= $OBJC# |
898 | /^PIC_OBJC *=/s#=.*#= $PIC_OBJC# |
899 | /^all: */s#:.*#: $ALL# |
900 | /^test: */s#:.*#: $TEST# |
901 | " > Makefile |
902 | |
903 | # create zlib.pc with the configure results |
904 | sed < ${SRCDIR}zlib.pc.in " |
905 | /^CC *=/s#=.*#=$CC# |
906 | /^CFLAGS *=/s#=.*#=$CFLAGS# |
907 | /^CPP *=/s#=.*#=$CPP# |
908 | /^LDSHARED *=/s#=.*#=$LDSHARED# |
909 | /^STATICLIB *=/s#=.*#=$STATICLIB# |
910 | /^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
911 | /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
912 | /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
913 | /^AR *=/s#=.*#=$AR# |
914 | /^ARFLAGS *=/s#=.*#=$ARFLAGS# |
915 | /^RANLIB *=/s#=.*#=$RANLIB# |
916 | /^EXE *=/s#=.*#=$EXE# |
917 | /^prefix *=/s#=.*#=$prefix# |
918 | /^exec_prefix *=/s#=.*#=$exec_prefix# |
919 | /^libdir *=/s#=.*#=$libdir# |
920 | /^sharedlibdir *=/s#=.*#=$sharedlibdir# |
921 | /^includedir *=/s#=.*#=$includedir# |
922 | /^mandir *=/s#=.*#=$mandir# |
923 | /^LDFLAGS *=/s#=.*#=$LDFLAGS# |
924 | " | sed -e " |
925 | s/\@VERSION\@/$VER/g; |
926 | " > zlib.pc |
927 | |
928 | # done |
929 | leave 0 |