2 # configure script for zlib.
4 # Normally configure builds both a static and a shared library.
5 # If you want to build just a static library, use: ./configure --static
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 $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
12 # Incorrect settings of CC or CFLAGS may prevent creating a shared library.
13 # If you have problems, try without defining CC and CFLAGS before reporting
16 if [ -n "${CHOST}" ]; then
17 uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`"
18 CROSS_PREFIX="${CHOST}-"
22 VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
23 VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h`
24 VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h`
25 VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h`
26 if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
27 AR=${AR-"${CROSS_PREFIX}ar"}
28 test -n "${CROSS_PREFIX}" && echo Using ${AR}
31 test -n "${CROSS_PREFIX}" && echo Using ${AR}
34 if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then
35 RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
36 test -n "${CROSS_PREFIX}" && echo Using ${RANLIB}
38 RANLIB=${RANLIB-"ranlib"}
40 if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then
41 NM=${NM-"${CROSS_PREFIX}nm"}
42 test -n "${CROSS_PREFIX}" && echo Using ${NM}
46 LDCONFIG=${LDCONFIG-"ldconfig"}
47 LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
49 prefix=${prefix-/usr/local}
50 exec_prefix=${exec_prefix-'${prefix}'}
51 libdir=${libdir-'${exec_prefix}/lib'}
52 sharedlibdir=${sharedlibdir-'${libdir}'}
53 includedir=${includedir-'${prefix}/include'}
54 mandir=${mandir-'${prefix}/share/man'}
68 echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]'
69 echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]'
70 echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]'
72 -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
73 -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
74 -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;;
75 --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;;
76 -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;;
77 -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
78 -p* | --prefix) prefix="$2"; shift; shift ;;
79 -e* | --eprefix) exec_prefix="$2"; shift; shift ;;
80 -l* | --libdir) libdir="$2"; shift; shift ;;
81 -i* | --includedir) includedir="$2"; shift; shift ;;
82 -s* | --shared | --enable-shared) shared=1; shift ;;
83 -t | --static) shared=0; shift ;;
84 -z* | --zprefix) zprefix=1; shift ;;
85 -6* | --64) build64=1; shift ;;
86 -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
87 --sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;;
88 --localstatedir=*) echo "ignored option: --localstatedir"; shift ;;
89 *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;;
96 int hello() {return getchar();}
99 test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc...
100 cc=${CC-${CROSS_PREFIX}gcc}
101 cflags=${CFLAGS-"-O3"}
102 # to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
106 case `$cc -v 2>&1` in
110 if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
112 CFLAGS="${CFLAGS--O3} ${ARCHS}"
113 SFLAGS="${CFLAGS--O3} -fPIC"
114 LDFLAGS="${LDFLAGS} ${ARCHS}"
115 if test $build64 -eq 1; then
116 CFLAGS="${CFLAGS} -m64"
117 SFLAGS="${SFLAGS} -m64"
119 if test "${ZLIBGCCWARN}" = "YES"; then
120 CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
122 if test -z "$uname"; then
123 uname=`(uname -s || echo unknown) 2>/dev/null`
126 Linux* | linux* | GNU | GNU/* | *BSD | *bsd* | DragonFly | solaris*)
127 LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
128 CYGWIN* | Cygwin* | cygwin* | OS/2*)
132 rm -f $test.[co] $test $test$shared_ext
133 echo "Please use win32/Makefile.gcc instead."
135 LDSHARED=${LDSHARED-"$cc -shared"}
138 QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
139 # (alain.bonnefoy@icbt.com)
140 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
142 LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
143 case `(uname -m || echo unknown) 2>/dev/null` in
146 SHAREDLIB='libz.so' ;;
149 SHAREDLIB='libz.sl' ;;
153 SHAREDLIB=libz$shared_ext
154 SHAREDLIBV=libz.$VER$shared_ext
155 SHAREDLIBM=libz.$VER1$shared_ext
156 LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
159 *) LDSHARED=${LDSHARED-"$cc -shared"} ;;
162 # find system name and corresponding cc options
165 if test -z "$uname"; then
166 uname=`(uname -sr || echo unknown) 2>/dev/null`
169 HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
170 CFLAGS=${CFLAGS-"-O"}
171 # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
172 LDSHARED=${LDSHARED-"ld -b"}
173 case `(uname -m || echo unknown) 2>/dev/null` in
176 SHAREDLIB='libz.so' ;;
179 SHAREDLIB='libz.sl' ;;
181 IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
182 CFLAGS=${CFLAGS-"-ansi -O2"}
183 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
184 OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
185 CFLAGS=${CFLAGS-"-O -std1"}
186 LDFLAGS="${LDFLAGS} -Wl,-rpath,."
187 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
188 OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
189 CFLAGS=${CFLAGS-"-O -std1"}
190 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
191 QNX*) SFLAGS=${CFLAGS-"-4 -O"}
192 CFLAGS=${CFLAGS-"-4 -O"}
193 LDSHARED=${LDSHARED-"cc"}
194 RANLIB=${RANLIB-"true"}
196 SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
197 CFLAGS=${CFLAGS-"-O3"}
198 LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
199 SunOS\ 5* | solaris*)
200 LDSHARED=${LDSHARED-"cc -G"}
201 case `(uname -m || echo unknown) 2>/dev/null` in
203 SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."}
204 CFLAGS=${CFLAGS-"-xpentium -fast"} ;;
206 SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."}
207 CFLAGS=${CFLAGS-"-fast -xcg92"} ;;
209 SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
210 CFLAGS=${CFLAGS-"-O2"}
211 LDSHARED=${LDSHARED-"ld"} ;;
212 SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
213 CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
214 LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
215 UNIX_System_V\ 4.2.0)
216 SFLAGS=${CFLAGS-"-KPIC -O"}
217 CFLAGS=${CFLAGS-"-O"}
218 LDSHARED=${LDSHARED-"cc -G"} ;;
220 SFLAGS=${CFLAGS-"-Kconform_pic -O"}
221 CFLAGS=${CFLAGS-"-O"}
222 LDSHARED=${LDSHARED-"cc -G"} ;;
224 SFLAGS=${CFLAGS-"-KPIC -O"}
225 CFLAGS=${CFLAGS-"-O"}
226 LDSHARED=${LDSHARED-"cc -G"} ;;
227 AIX*) # Courtesy of dbakker@arrayasolutions.com
228 SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
229 CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
230 LDSHARED=${LDSHARED-"xlc -G"} ;;
231 # send working options for other systems to zlib@gzip.org
232 *) SFLAGS=${CFLAGS-"-O"}
233 CFLAGS=${CFLAGS-"-O"}
234 LDSHARED=${LDSHARED-"cc -shared"} ;;
238 SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
239 SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
240 SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
242 if test $shared -eq 1; then
243 echo Checking for shared library support...
244 # we must test in two steps (cc then ld), required at least on SunOS 4.x
245 if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" &&
246 test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then
247 echo Building shared library $SHAREDLIBV with $CC.
248 elif test -z "$old_cc" -a -z "$old_cflags"; then
249 echo No shared library support.
252 echo Tested $CC -w -c $SFLAGS $test.c
253 $CC -w -c $SFLAGS $test.c
254 echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o
255 $LDSHARED $SFLAGS -o $test$shared_ext $test.o
256 echo 'No shared library support; try without defining CC and CFLAGS'
260 if test $shared -eq 0; then
263 TEST="all teststatic"
267 echo Building static library $STATICLIB version $VER with $CC.
270 TEST="all teststatic testshared"
274 #include <sys/types.h>
277 if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then
278 CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
279 SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
281 TEST="${TEST} test64"
282 echo "Checking for off64_t... Yes."
283 echo "Checking for fseeko... Yes."
285 echo "Checking for off64_t... No."
293 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
294 echo "Checking for fseeko... Yes."
296 CFLAGS="${CFLAGS} -DNO_FSEEKO"
297 SFLAGS="${SFLAGS} -DNO_FSEEKO"
298 echo "Checking for fseeko... No."
302 cp -p zconf.h.in zconf.h
306 int main() { return 0; }
308 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
309 sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
310 mv zconf.temp.h zconf.h
311 echo "Checking for unistd.h... Yes."
313 echo "Checking for unistd.h... No."
318 int main() { return 0; }
320 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
321 sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
322 mv zconf.temp.h zconf.h
323 echo "Checking for stdarg.h... Yes."
325 echo "Checking for stdarg.h... No."
328 if test $zprefix -eq 1; then
329 sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
330 mv zconf.temp.h zconf.h
331 echo "Using z_ prefix on all symbols."
349 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
350 echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()."
356 int mytest(const char *fmt, ...)
362 vsnprintf(buf, sizeof(buf), fmt, ap);
369 return (mytest("Hello%d\n", 1));
372 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
373 echo "Checking for vsnprintf() in stdio.h... Yes."
379 int mytest(const char *fmt, ...)
386 n = vsnprintf(buf, sizeof(buf), fmt, ap);
393 return (mytest("Hello%d\n", 1));
397 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
398 echo "Checking for return value of vsnprintf()... Yes."
400 CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
401 SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
402 echo "Checking for return value of vsnprintf()... No."
403 echo " WARNING: apparently vsnprintf() does not return a value. zlib"
404 echo " can build but will be open to possible string-format security"
405 echo " vulnerabilities."
408 CFLAGS="$CFLAGS -DNO_vsnprintf"
409 SFLAGS="$SFLAGS -DNO_vsnprintf"
410 echo "Checking for vsnprintf() in stdio.h... No."
411 echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
412 echo " can build but will be open to possible buffer-overflow security"
413 echo " vulnerabilities."
419 int mytest(const char *fmt, ...)
426 n = vsprintf(buf, fmt, ap);
433 return (mytest("Hello%d\n", 1));
437 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
438 echo "Checking for return value of vsprintf()... Yes."
440 CFLAGS="$CFLAGS -DHAS_vsprintf_void"
441 SFLAGS="$SFLAGS -DHAS_vsprintf_void"
442 echo "Checking for return value of vsprintf()... No."
443 echo " WARNING: apparently vsprintf() does not return a value. zlib"
444 echo " can build but will be open to possible string-format security"
445 echo " vulnerabilities."
449 echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()."
458 snprintf(buf, sizeof(buf), "%s", "foo");
468 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
469 echo "Checking for snprintf() in stdio.h... Yes."
478 return snprintf(buf, sizeof(buf), "%s", "foo");
487 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
488 echo "Checking for return value of snprintf()... Yes."
490 CFLAGS="$CFLAGS -DHAS_snprintf_void"
491 SFLAGS="$SFLAGS -DHAS_snprintf_void"
492 echo "Checking for return value of snprintf()... No."
493 echo " WARNING: apparently snprintf() does not return a value. zlib"
494 echo " can build but will be open to possible string-format security"
495 echo " vulnerabilities."
498 CFLAGS="$CFLAGS -DNO_snprintf"
499 SFLAGS="$SFLAGS -DNO_snprintf"
500 echo "Checking for snprintf() in stdio.h... No."
501 echo " WARNING: snprintf() not found, falling back to sprintf(). zlib"
502 echo " can build but will be open to possible buffer-overflow security"
503 echo " vulnerabilities."
512 return sprintf(buf, "%s", "foo");
521 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
522 echo "Checking for return value of sprintf()... Yes."
524 CFLAGS="$CFLAGS -DHAS_sprintf_void"
525 SFLAGS="$SFLAGS -DHAS_sprintf_void"
526 echo "Checking for return value of sprintf()... No."
527 echo " WARNING: apparently sprintf() does not return a value. zlib"
528 echo " can build but will be open to possible string-format security"
529 echo " vulnerabilities."
534 if test "$gcc" -eq 1; then
536 #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
537 # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
539 # define ZLIB_INTERNAL
541 int ZLIB_INTERNAL foo;
547 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
548 echo "Checking for attribute(visibility) support... Yes."
550 CFLAGS="$CFLAGS -DNO_VIZ"
551 SFLAGS="$SFLAGS -DNO_VIZ"
552 echo "Checking for attribute(visibility) support... No."
559 if test "`$NM $test.o | grep _hello`" = ""; then
560 CPP="$CPP -DNO_UNDERLINE"
561 echo Checking for underline in external names... No.
563 echo Checking for underline in external names... Yes.
567 rm -f $test.[co] $test $test$shared_ext
572 /^CFLAGS *=/s#=.*#=$CFLAGS#
573 /^SFLAGS *=/s#=.*#=$SFLAGS#
574 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
575 /^LDSHARED *=/s#=.*#=$LDSHARED#
576 /^CPP *=/s#=.*#=$CPP#
577 /^STATICLIB *=/s#=.*#=$STATICLIB#
578 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
579 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
580 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
581 /^AR *=/s#=.*#=$AR_RC#
582 /^RANLIB *=/s#=.*#=$RANLIB#
583 /^LDCONFIG *=/s#=.*#=$LDCONFIG#
584 /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
585 /^EXE *=/s#=.*#=$EXE#
586 /^prefix *=/s#=.*#=$prefix#
587 /^exec_prefix *=/s#=.*#=$exec_prefix#
588 /^libdir *=/s#=.*#=$libdir#
589 /^sharedlibdir *=/s#=.*#=$sharedlibdir#
590 /^includedir *=/s#=.*#=$includedir#
591 /^mandir *=/s#=.*#=$mandir#
592 /^all: */s#:.*#: $ALL#
593 /^test: */s#:.*#: $TEST#
598 /^CFLAGS *=/s#=.*#=$CFLAGS#
599 /^CPP *=/s#=.*#=$CPP#
600 /^LDSHARED *=/s#=.*#=$LDSHARED#
601 /^STATICLIB *=/s#=.*#=$STATICLIB#
602 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
603 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
604 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
605 /^AR *=/s#=.*#=$AR_RC#
606 /^RANLIB *=/s#=.*#=$RANLIB#
607 /^EXE *=/s#=.*#=$EXE#
608 /^prefix *=/s#=.*#=$prefix#
609 /^exec_prefix *=/s#=.*#=$exec_prefix#
610 /^libdir *=/s#=.*#=$libdir#
611 /^sharedlibdir *=/s#=.*#=$sharedlibdir#
612 /^includedir *=/s#=.*#=$includedir#
613 /^mandir *=/s#=.*#=$mandir#
614 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
616 s/\@VERSION\@/$VER/g;