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 ${AR}
33 ARFLAGS=${ARFLAGS-"rc"}
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'}
64 OBJC='$(OBJZ) $(OBJG)'
65 PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
72 echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]'
73 echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]'
74 echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]'
76 -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
77 -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
78 -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;;
79 --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;;
80 -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;;
81 -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
82 -p* | --prefix) prefix="$2"; shift; shift ;;
83 -e* | --eprefix) exec_prefix="$2"; shift; shift ;;
84 -l* | --libdir) libdir="$2"; shift; shift ;;
85 -i* | --includedir) includedir="$2"; shift; shift ;;
86 -s* | --shared | --enable-shared) shared=1; shift ;;
87 -t | --static) shared=0; shift ;;
88 --solo) solo=1; shift ;;
89 --cover) cover=1; shift ;;
90 -z* | --zprefix) zprefix=1; shift ;;
91 -6* | --64) build64=1; shift ;;
92 -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
93 --sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;;
94 --localstatedir=*) echo "ignored option: --localstatedir"; shift ;;
95 *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;;
101 extern int getchar();
102 int hello() {return getchar();}
105 test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc...
106 cc=${CC-${CROSS_PREFIX}gcc}
107 cflags=${CFLAGS-"-O3"}
108 # to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
112 case `$cc -v 2>&1` in
116 if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
118 CFLAGS="${CFLAGS--O3} ${ARCHS}"
119 SFLAGS="${CFLAGS--O3} -fPIC"
120 LDFLAGS="${LDFLAGS} ${ARCHS}"
121 if test $build64 -eq 1; then
122 CFLAGS="${CFLAGS} -m64"
123 SFLAGS="${SFLAGS} -m64"
125 if test "${ZLIBGCCWARN}" = "YES"; then
126 CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
128 if test -z "$uname"; then
129 uname=`(uname -s || echo unknown) 2>/dev/null`
132 Linux* | linux* | GNU | GNU/* | *BSD | *bsd* | DragonFly | solaris*)
133 LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
134 CYGWIN* | Cygwin* | cygwin* | OS/2*)
138 rm -f $test.[co] $test $test$shared_ext
139 echo "Please use win32/Makefile.gcc instead."
141 LDSHARED=${LDSHARED-"$cc -shared"}
144 QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
145 # (alain.bonnefoy@icbt.com)
146 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
148 LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
149 case `(uname -m || echo unknown) 2>/dev/null` in
152 SHAREDLIB='libz.so' ;;
155 SHAREDLIB='libz.sl' ;;
159 SHAREDLIB=libz$shared_ext
160 SHAREDLIBV=libz.$VER$shared_ext
161 SHAREDLIBM=libz.$VER1$shared_ext
162 LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
165 *) LDSHARED=${LDSHARED-"$cc -shared"} ;;
168 # find system name and corresponding cc options
171 if test -z "$uname"; then
172 uname=`(uname -sr || echo unknown) 2>/dev/null`
175 HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
176 CFLAGS=${CFLAGS-"-O"}
177 # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
178 LDSHARED=${LDSHARED-"ld -b"}
179 case `(uname -m || echo unknown) 2>/dev/null` in
182 SHAREDLIB='libz.so' ;;
185 SHAREDLIB='libz.sl' ;;
187 IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
188 CFLAGS=${CFLAGS-"-ansi -O2"}
189 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
190 OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
191 CFLAGS=${CFLAGS-"-O -std1"}
192 LDFLAGS="${LDFLAGS} -Wl,-rpath,."
193 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
194 OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
195 CFLAGS=${CFLAGS-"-O -std1"}
196 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
197 QNX*) SFLAGS=${CFLAGS-"-4 -O"}
198 CFLAGS=${CFLAGS-"-4 -O"}
199 LDSHARED=${LDSHARED-"cc"}
200 RANLIB=${RANLIB-"true"}
203 SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
204 CFLAGS=${CFLAGS-"-O3"}
205 LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
206 SunOS\ 5* | solaris*)
207 LDSHARED=${LDSHARED-"cc -G"}
208 case `(uname -m || echo unknown) 2>/dev/null` in
210 SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."}
211 CFLAGS=${CFLAGS-"-xpentium -fast"} ;;
213 SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."}
214 CFLAGS=${CFLAGS-"-fast -xcg92"} ;;
216 SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
217 CFLAGS=${CFLAGS-"-O2"}
218 LDSHARED=${LDSHARED-"ld"} ;;
219 SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
220 CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
221 LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
222 UNIX_System_V\ 4.2.0)
223 SFLAGS=${CFLAGS-"-KPIC -O"}
224 CFLAGS=${CFLAGS-"-O"}
225 LDSHARED=${LDSHARED-"cc -G"} ;;
227 SFLAGS=${CFLAGS-"-Kconform_pic -O"}
228 CFLAGS=${CFLAGS-"-O"}
229 LDSHARED=${LDSHARED-"cc -G"} ;;
231 SFLAGS=${CFLAGS-"-KPIC -O"}
232 CFLAGS=${CFLAGS-"-O"}
233 LDSHARED=${LDSHARED-"cc -G"} ;;
234 AIX*) # Courtesy of dbakker@arrayasolutions.com
235 SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
236 CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
237 LDSHARED=${LDSHARED-"xlc -G"} ;;
238 # send working options for other systems to zlib@gzip.org
239 *) SFLAGS=${CFLAGS-"-O"}
240 CFLAGS=${CFLAGS-"-O"}
241 LDSHARED=${LDSHARED-"cc -shared"} ;;
245 SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
246 SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
247 SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
249 if test $shared -eq 1; then
250 echo Checking for shared library support...
251 # we must test in two steps (cc then ld), required at least on SunOS 4.x
252 if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" &&
253 test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then
254 echo Building shared library $SHAREDLIBV with $CC.
255 elif test -z "$old_cc" -a -z "$old_cflags"; then
256 echo No shared library support.
259 echo Tested $CC -w -c $SFLAGS $test.c
260 $CC -w -c $SFLAGS $test.c
261 echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o
262 $LDSHARED $SFLAGS -o $test$shared_ext $test.o
263 echo 'No shared library support; try without defining CC and CFLAGS'
267 if test $shared -eq 0; then
270 TEST="all teststatic"
274 echo Building static library $STATICLIB version $VER with $CC.
277 TEST="all teststatic testshared"
281 #include <sys/types.h>
284 if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then
285 CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
286 SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
288 TEST="${TEST} test64"
289 echo "Checking for off64_t... Yes."
290 echo "Checking for fseeko... Yes."
292 echo "Checking for off64_t... No."
300 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
301 echo "Checking for fseeko... Yes."
303 CFLAGS="${CFLAGS} -DNO_FSEEKO"
304 SFLAGS="${SFLAGS} -DNO_FSEEKO"
305 echo "Checking for fseeko... No."
309 cp -p zconf.h.in zconf.h
313 int main() { return 0; }
315 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
316 sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
317 mv zconf.temp.h zconf.h
318 echo "Checking for unistd.h... Yes."
320 echo "Checking for unistd.h... No."
325 int main() { return 0; }
327 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
328 sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
329 mv zconf.temp.h zconf.h
330 echo "Checking for stdarg.h... Yes."
332 echo "Checking for stdarg.h... No."
335 if test $zprefix -eq 1; then
336 sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
337 mv zconf.temp.h zconf.h
338 echo "Using z_ prefix on all symbols."
341 if test $solo -eq 1; then
342 sed '/#define ZCONF_H/a\
345 ' < zconf.h > zconf.temp.h
346 mv zconf.temp.h zconf.h
348 PIC_OBJC='$(PIC_OBJZ)'
351 if test $cover -eq 1; then
352 CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
370 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
371 echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()."
377 int mytest(const char *fmt, ...)
383 vsnprintf(buf, sizeof(buf), fmt, ap);
390 return (mytest("Hello%d\n", 1));
393 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
394 echo "Checking for vsnprintf() in stdio.h... Yes."
400 int mytest(const char *fmt, ...)
407 n = vsnprintf(buf, sizeof(buf), fmt, ap);
414 return (mytest("Hello%d\n", 1));
418 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
419 echo "Checking for return value of vsnprintf()... Yes."
421 CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
422 SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
423 echo "Checking for return value of vsnprintf()... No."
424 echo " WARNING: apparently vsnprintf() does not return a value. zlib"
425 echo " can build but will be open to possible string-format security"
426 echo " vulnerabilities."
429 CFLAGS="$CFLAGS -DNO_vsnprintf"
430 SFLAGS="$SFLAGS -DNO_vsnprintf"
431 echo "Checking for vsnprintf() in stdio.h... No."
432 echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
433 echo " can build but will be open to possible buffer-overflow security"
434 echo " vulnerabilities."
440 int mytest(const char *fmt, ...)
447 n = vsprintf(buf, fmt, ap);
454 return (mytest("Hello%d\n", 1));
458 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
459 echo "Checking for return value of vsprintf()... Yes."
461 CFLAGS="$CFLAGS -DHAS_vsprintf_void"
462 SFLAGS="$SFLAGS -DHAS_vsprintf_void"
463 echo "Checking for return value of vsprintf()... No."
464 echo " WARNING: apparently vsprintf() does not return a value. zlib"
465 echo " can build but will be open to possible string-format security"
466 echo " vulnerabilities."
470 echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()."
479 snprintf(buf, sizeof(buf), "%s", "foo");
489 if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
490 echo "Checking for snprintf() in stdio.h... Yes."
499 return snprintf(buf, sizeof(buf), "%s", "foo");
508 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
509 echo "Checking for return value of snprintf()... Yes."
511 CFLAGS="$CFLAGS -DHAS_snprintf_void"
512 SFLAGS="$SFLAGS -DHAS_snprintf_void"
513 echo "Checking for return value of snprintf()... No."
514 echo " WARNING: apparently snprintf() does not return a value. zlib"
515 echo " can build but will be open to possible string-format security"
516 echo " vulnerabilities."
519 CFLAGS="$CFLAGS -DNO_snprintf"
520 SFLAGS="$SFLAGS -DNO_snprintf"
521 echo "Checking for snprintf() in stdio.h... No."
522 echo " WARNING: snprintf() not found, falling back to sprintf(). zlib"
523 echo " can build but will be open to possible buffer-overflow security"
524 echo " vulnerabilities."
533 return sprintf(buf, "%s", "foo");
542 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
543 echo "Checking for return value of sprintf()... Yes."
545 CFLAGS="$CFLAGS -DHAS_sprintf_void"
546 SFLAGS="$SFLAGS -DHAS_sprintf_void"
547 echo "Checking for return value of sprintf()... No."
548 echo " WARNING: apparently sprintf() does not return a value. zlib"
549 echo " can build but will be open to possible string-format security"
550 echo " vulnerabilities."
555 if test "$gcc" -eq 1; then
557 #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
558 # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
560 # define ZLIB_INTERNAL
562 int ZLIB_INTERNAL foo;
568 if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
569 echo "Checking for attribute(visibility) support... Yes."
571 CFLAGS="$CFLAGS -DNO_VIZ"
572 SFLAGS="$SFLAGS -DNO_VIZ"
573 echo "Checking for attribute(visibility) support... No."
580 if test "`$NM $test.o | grep _hello`" = ""; then
581 CPP="$CPP -DNO_UNDERLINE"
582 echo Checking for underline in external names... No.
584 echo Checking for underline in external names... Yes.
588 rm -f $test.[co] $test $test$shared_ext $test.gcno
593 /^CFLAGS *=/s#=.*#=$CFLAGS#
594 /^SFLAGS *=/s#=.*#=$SFLAGS#
595 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
596 /^LDSHARED *=/s#=.*#=$LDSHARED#
597 /^CPP *=/s#=.*#=$CPP#
598 /^STATICLIB *=/s#=.*#=$STATICLIB#
599 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
600 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
601 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
603 /^ARFLAGS *=/s#=.*#=$ARFLAGS#
604 /^RANLIB *=/s#=.*#=$RANLIB#
605 /^LDCONFIG *=/s#=.*#=$LDCONFIG#
606 /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
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 /^OBJC *=/s#=.*#= $OBJC#
615 /^PIC_OBJC *=/s#=.*#= $PIC_OBJC#
616 /^all: */s#:.*#: $ALL#
617 /^test: */s#:.*#: $TEST#
622 /^CFLAGS *=/s#=.*#=$CFLAGS#
623 /^CPP *=/s#=.*#=$CPP#
624 /^LDSHARED *=/s#=.*#=$LDSHARED#
625 /^STATICLIB *=/s#=.*#=$STATICLIB#
626 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
627 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
628 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
630 /^ARFLAGS *=/s#=.*#=$ARFLAGS#
631 /^RANLIB *=/s#=.*#=$RANLIB#
632 /^EXE *=/s#=.*#=$EXE#
633 /^prefix *=/s#=.*#=$prefix#
634 /^exec_prefix *=/s#=.*#=$exec_prefix#
635 /^libdir *=/s#=.*#=$libdir#
636 /^sharedlibdir *=/s#=.*#=$sharedlibdir#
637 /^includedir *=/s#=.*#=$includedir#
638 /^mandir *=/s#=.*#=$mandir#
639 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
641 s/\@VERSION\@/$VER/g;