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'}
63 OBJC='$(OBJZ) $(OBJG)'
64 PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
71 echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]'
72 echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]'
73 echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]'
75 -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
76 -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
77 -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;;
78 --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;;
79 -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;;
80 -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
81 -p* | --prefix) prefix="$2"; shift; shift ;;
82 -e* | --eprefix) exec_prefix="$2"; shift; shift ;;
83 -l* | --libdir) libdir="$2"; shift; shift ;;
84 -i* | --includedir) includedir="$2"; shift; shift ;;
85 -s* | --shared | --enable-shared) shared=1; shift ;;
86 -t | --static) shared=0; shift ;;
87 --solo) solo=1; shift ;;
88 -z* | --zprefix) zprefix=1; shift ;;
89 -6* | --64) build64=1; shift ;;
90 -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
91 --sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;;
92 --localstatedir=*) echo "ignored option: --localstatedir"; shift ;;
93 *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;;
100 int hello() {return getchar();}
103 test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc...
104 cc=${CC-${CROSS_PREFIX}gcc}
105 cflags=${CFLAGS-"-O3"}
106 # to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
110 case `$cc -v 2>&1` in
114 if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
116 CFLAGS="${CFLAGS--O3} ${ARCHS}"
117 SFLAGS="${CFLAGS--O3} -fPIC"
118 LDFLAGS="${LDFLAGS} ${ARCHS}"
119 if test $build64 -eq 1; then
120 CFLAGS="${CFLAGS} -m64"
121 SFLAGS="${SFLAGS} -m64"
123 if test "${ZLIBGCCWARN}" = "YES"; then
124 CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
126 if test -z "$uname"; then
127 uname=`(uname -s || echo unknown) 2>/dev/null`
130 Linux* | linux* | GNU | GNU/* | *BSD | *bsd* | DragonFly | solaris*)
131 LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
132 CYGWIN* | Cygwin* | cygwin* | OS/2*)
136 rm -f $test.[co] $test $test$shared_ext
137 echo "Please use win32/Makefile.gcc instead."
139 LDSHARED=${LDSHARED-"$cc -shared"}
142 QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
143 # (alain.bonnefoy@icbt.com)
144 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
146 LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
147 case `(uname -m || echo unknown) 2>/dev/null` in
150 SHAREDLIB='libz.so' ;;
153 SHAREDLIB='libz.sl' ;;
157 SHAREDLIB=libz$shared_ext
158 SHAREDLIBV=libz.$VER$shared_ext
159 SHAREDLIBM=libz.$VER1$shared_ext
160 LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
163 *) LDSHARED=${LDSHARED-"$cc -shared"} ;;
166 # find system name and corresponding cc options
169 if test -z "$uname"; then
170 uname=`(uname -sr || echo unknown) 2>/dev/null`
173 HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
174 CFLAGS=${CFLAGS-"-O"}
175 # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
176 LDSHARED=${LDSHARED-"ld -b"}
177 case `(uname -m || echo unknown) 2>/dev/null` in
180 SHAREDLIB='libz.so' ;;
183 SHAREDLIB='libz.sl' ;;
185 IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
186 CFLAGS=${CFLAGS-"-ansi -O2"}
187 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
188 OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
189 CFLAGS=${CFLAGS-"-O -std1"}
190 LDFLAGS="${LDFLAGS} -Wl,-rpath,."
191 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
192 OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
193 CFLAGS=${CFLAGS-"-O -std1"}
194 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
195 QNX*) SFLAGS=${CFLAGS-"-4 -O"}
196 CFLAGS=${CFLAGS-"-4 -O"}
197 LDSHARED=${LDSHARED-"cc"}
198 RANLIB=${RANLIB-"true"}
200 SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
201 CFLAGS=${CFLAGS-"-O3"}
202 LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
203 SunOS\ 5* | solaris*)
204 LDSHARED=${LDSHARED-"cc -G"}
205 case `(uname -m || echo unknown) 2>/dev/null` in
207 SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."}
208 CFLAGS=${CFLAGS-"-xpentium -fast"} ;;
210 SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."}
211 CFLAGS=${CFLAGS-"-fast -xcg92"} ;;
213 SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
214 CFLAGS=${CFLAGS-"-O2"}
215 LDSHARED=${LDSHARED-"ld"} ;;
216 SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
217 CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
218 LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
219 UNIX_System_V\ 4.2.0)
220 SFLAGS=${CFLAGS-"-KPIC -O"}
221 CFLAGS=${CFLAGS-"-O"}
222 LDSHARED=${LDSHARED-"cc -G"} ;;
224 SFLAGS=${CFLAGS-"-Kconform_pic -O"}
225 CFLAGS=${CFLAGS-"-O"}
226 LDSHARED=${LDSHARED-"cc -G"} ;;
228 SFLAGS=${CFLAGS-"-KPIC -O"}
229 CFLAGS=${CFLAGS-"-O"}
230 LDSHARED=${LDSHARED-"cc -G"} ;;
231 AIX*) # Courtesy of dbakker@arrayasolutions.com
232 SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
233 CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
234 LDSHARED=${LDSHARED-"xlc -G"} ;;
235 # send working options for other systems to zlib@gzip.org
236 *) SFLAGS=${CFLAGS-"-O"}
237 CFLAGS=${CFLAGS-"-O"}
238 LDSHARED=${LDSHARED-"cc -shared"} ;;
242 SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
243 SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
244 SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
246 if test $shared -eq 1; then
247 echo Checking for shared library support...
248 # we must test in two steps (cc then ld), required at least on SunOS 4.x
249 if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" &&
250 test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then
251 echo Building shared library $SHAREDLIBV with $CC.
252 elif test -z "$old_cc" -a -z "$old_cflags"; then
253 echo No shared library support.
256 echo Tested $CC -w -c $SFLAGS $test.c
257 $CC -w -c $SFLAGS $test.c
258 echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o
259 $LDSHARED $SFLAGS -o $test$shared_ext $test.o
260 echo 'No shared library support; try without defining CC and CFLAGS'
264 if test $shared -eq 0; then
267 TEST="all teststatic"
271 echo Building static library $STATICLIB version $VER with $CC.
274 TEST="all teststatic testshared"
278 #include <sys/types.h>
281 if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then
282 CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
283 SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
285 TEST="${TEST} test64"
286 echo "Checking for off64_t... Yes."
287 echo "Checking for fseeko... Yes."
289 echo "Checking for off64_t... No."
297 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
298 echo "Checking for fseeko... Yes."
300 CFLAGS="${CFLAGS} -DNO_FSEEKO"
301 SFLAGS="${SFLAGS} -DNO_FSEEKO"
302 echo "Checking for fseeko... No."
306 cp -p zconf.h.in zconf.h
310 int main() { return 0; }
312 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
313 sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
314 mv zconf.temp.h zconf.h
315 echo "Checking for unistd.h... Yes."
317 echo "Checking for unistd.h... No."
322 int main() { return 0; }
324 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
325 sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
326 mv zconf.temp.h zconf.h
327 echo "Checking for stdarg.h... Yes."
329 echo "Checking for stdarg.h... No."
332 if test $zprefix -eq 1; then
333 sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
334 mv zconf.temp.h zconf.h
335 echo "Using z_ prefix on all symbols."
338 if test $solo -eq 1; then
339 sed '/#define ZCONF_H/a\
342 ' < zconf.h > zconf.temp.h
343 mv zconf.temp.h zconf.h
345 PIC_OBJC='$(PIC_OBJZ)'
363 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
364 echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()."
370 int mytest(const char *fmt, ...)
376 vsnprintf(buf, sizeof(buf), fmt, ap);
383 return (mytest("Hello%d\n", 1));
386 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
387 echo "Checking for vsnprintf() in stdio.h... Yes."
393 int mytest(const char *fmt, ...)
400 n = vsnprintf(buf, sizeof(buf), fmt, ap);
407 return (mytest("Hello%d\n", 1));
411 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
412 echo "Checking for return value of vsnprintf()... Yes."
414 CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
415 SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
416 echo "Checking for return value of vsnprintf()... No."
417 echo " WARNING: apparently vsnprintf() does not return a value. zlib"
418 echo " can build but will be open to possible string-format security"
419 echo " vulnerabilities."
422 CFLAGS="$CFLAGS -DNO_vsnprintf"
423 SFLAGS="$SFLAGS -DNO_vsnprintf"
424 echo "Checking for vsnprintf() in stdio.h... No."
425 echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
426 echo " can build but will be open to possible buffer-overflow security"
427 echo " vulnerabilities."
433 int mytest(const char *fmt, ...)
440 n = vsprintf(buf, fmt, ap);
447 return (mytest("Hello%d\n", 1));
451 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
452 echo "Checking for return value of vsprintf()... Yes."
454 CFLAGS="$CFLAGS -DHAS_vsprintf_void"
455 SFLAGS="$SFLAGS -DHAS_vsprintf_void"
456 echo "Checking for return value of vsprintf()... No."
457 echo " WARNING: apparently vsprintf() does not return a value. zlib"
458 echo " can build but will be open to possible string-format security"
459 echo " vulnerabilities."
463 echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()."
472 snprintf(buf, sizeof(buf), "%s", "foo");
482 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
483 echo "Checking for snprintf() in stdio.h... Yes."
492 return snprintf(buf, sizeof(buf), "%s", "foo");
501 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
502 echo "Checking for return value of snprintf()... Yes."
504 CFLAGS="$CFLAGS -DHAS_snprintf_void"
505 SFLAGS="$SFLAGS -DHAS_snprintf_void"
506 echo "Checking for return value of snprintf()... No."
507 echo " WARNING: apparently snprintf() does not return a value. zlib"
508 echo " can build but will be open to possible string-format security"
509 echo " vulnerabilities."
512 CFLAGS="$CFLAGS -DNO_snprintf"
513 SFLAGS="$SFLAGS -DNO_snprintf"
514 echo "Checking for snprintf() in stdio.h... No."
515 echo " WARNING: snprintf() not found, falling back to sprintf(). zlib"
516 echo " can build but will be open to possible buffer-overflow security"
517 echo " vulnerabilities."
526 return sprintf(buf, "%s", "foo");
535 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
536 echo "Checking for return value of sprintf()... Yes."
538 CFLAGS="$CFLAGS -DHAS_sprintf_void"
539 SFLAGS="$SFLAGS -DHAS_sprintf_void"
540 echo "Checking for return value of sprintf()... No."
541 echo " WARNING: apparently sprintf() does not return a value. zlib"
542 echo " can build but will be open to possible string-format security"
543 echo " vulnerabilities."
548 if test "$gcc" -eq 1; then
550 #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
551 # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
553 # define ZLIB_INTERNAL
555 int ZLIB_INTERNAL foo;
561 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
562 echo "Checking for attribute(visibility) support... Yes."
564 CFLAGS="$CFLAGS -DNO_VIZ"
565 SFLAGS="$SFLAGS -DNO_VIZ"
566 echo "Checking for attribute(visibility) support... No."
573 if test "`$NM $test.o | grep _hello`" = ""; then
574 CPP="$CPP -DNO_UNDERLINE"
575 echo Checking for underline in external names... No.
577 echo Checking for underline in external names... Yes.
581 rm -f $test.[co] $test $test$shared_ext
586 /^CFLAGS *=/s#=.*#=$CFLAGS#
587 /^SFLAGS *=/s#=.*#=$SFLAGS#
588 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
589 /^LDSHARED *=/s#=.*#=$LDSHARED#
590 /^CPP *=/s#=.*#=$CPP#
591 /^STATICLIB *=/s#=.*#=$STATICLIB#
592 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
593 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
594 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
595 /^AR *=/s#=.*#=$AR_RC#
596 /^RANLIB *=/s#=.*#=$RANLIB#
597 /^LDCONFIG *=/s#=.*#=$LDCONFIG#
598 /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
599 /^EXE *=/s#=.*#=$EXE#
600 /^prefix *=/s#=.*#=$prefix#
601 /^exec_prefix *=/s#=.*#=$exec_prefix#
602 /^libdir *=/s#=.*#=$libdir#
603 /^sharedlibdir *=/s#=.*#=$sharedlibdir#
604 /^includedir *=/s#=.*#=$includedir#
605 /^mandir *=/s#=.*#=$mandir#
606 /^OBJC *=/s#=.*#= $OBJC#
607 /^PIC_OBJC *=/s#=.*#= $PIC_OBJC#
608 /^all: */s#:.*#: $ALL#
609 /^test: */s#:.*#: $TEST#
614 /^CFLAGS *=/s#=.*#=$CFLAGS#
615 /^CPP *=/s#=.*#=$CPP#
616 /^LDSHARED *=/s#=.*#=$LDSHARED#
617 /^STATICLIB *=/s#=.*#=$STATICLIB#
618 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
619 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
620 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
621 /^AR *=/s#=.*#=$AR_RC#
622 /^RANLIB *=/s#=.*#=$RANLIB#
623 /^EXE *=/s#=.*#=$EXE#
624 /^prefix *=/s#=.*#=$prefix#
625 /^exec_prefix *=/s#=.*#=$exec_prefix#
626 /^libdir *=/s#=.*#=$libdir#
627 /^sharedlibdir *=/s#=.*#=$sharedlibdir#
628 /^includedir *=/s#=.*#=$includedir#
629 /^mandir *=/s#=.*#=$mandir#
630 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
632 s/\@VERSION\@/$VER/g;