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 # start off configure.log
17 echo -------------------- >> configure.log
18 echo $0 $* >> configure.log
21 # set command prefix for cross-compilation
22 if [ -n "${CHOST}" ]; then
23 uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`"
24 CROSS_PREFIX="${CHOST}-"
27 # destination name for static library
30 # extract zlib version numbers from zlib.h
31 VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
32 VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h`
33 VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h`
34 VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h`
36 # establish commands for library building
37 if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
38 AR=${AR-"${CROSS_PREFIX}ar"}
39 test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
42 test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
44 ARFLAGS=${ARFLAGS-"rc"}
45 if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then
46 RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
47 test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log
49 RANLIB=${RANLIB-"ranlib"}
51 if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then
52 NM=${NM-"${CROSS_PREFIX}nm"}
53 test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log
58 # set defaults before processing command line options
59 LDCONFIG=${LDCONFIG-"ldconfig"}
60 LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
62 prefix=${prefix-/usr/local}
63 exec_prefix=${exec_prefix-'${prefix}'}
64 libdir=${libdir-'${exec_prefix}/lib'}
65 sharedlibdir=${sharedlibdir-'${libdir}'}
66 includedir=${includedir-'${prefix}/include'}
67 mandir=${mandir-'${prefix}/share/man'}
77 OBJC='$(OBJZ) $(OBJG)'
78 PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
80 # process command line options
85 echo 'usage:' | tee -a configure.log
86 echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log
87 echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
88 echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
90 -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
91 -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
92 -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;;
93 --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;;
94 -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;;
95 -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
96 -p* | --prefix) prefix="$2"; shift; shift ;;
97 -e* | --eprefix) exec_prefix="$2"; shift; shift ;;
98 -l* | --libdir) libdir="$2"; shift; shift ;;
99 -i* | --includedir) includedir="$2"; shift; shift ;;
100 -s* | --shared | --enable-shared) shared=1; shift ;;
101 -t | --static) shared=0; shift ;;
102 --solo) solo=1; shift ;;
103 --cover) cover=1; shift ;;
104 -z* | --zprefix) zprefix=1; shift ;;
105 -6* | --64) build64=1; shift ;;
106 -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
107 --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;;
108 --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;;
109 *) echo "unknown option: $1"; echo "$0 --help for help" | tee -a configure.log; exit 1 ;;
113 # define functions for testing compiler and library characteristics and logging the results
120 echo === $test.c === >> configure.log
121 cat $test.c >> configure.log
122 echo === >> configure.log;;
124 echo $* >> configure.log
130 if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
134 test "`( $* ) 2>&1 | tee -a configure.log`" = ""
136 echo - using any output from compiler to indicate an error >> configure.log
141 ( $* ) >> configure.log 2>&1
143 if test $ret -ne 0; then
144 echo "(exit code "$ret")" >> configure.log
155 printf %s "$got" >> configure.log
156 if test $ret -ne 0; then
162 echo >> configure.log
164 # check for gcc vs. cc and set compile and link flags based on the system identified by uname
166 extern int getchar();
167 int hello() {return getchar();}
170 test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log
171 cc=${CC-${CROSS_PREFIX}gcc}
172 cflags=${CFLAGS-"-O3"}
173 # to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
178 case `$cc -v 2>&1` in
182 show $cc -c $cflags $test.c
183 if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
184 echo ... using gcc >> configure.log
186 CFLAGS="${CFLAGS--O3} ${ARCHS}"
187 SFLAGS="${CFLAGS--O3} -fPIC"
188 LDFLAGS="${LDFLAGS} ${ARCHS}"
189 if test $build64 -eq 1; then
190 CFLAGS="${CFLAGS} -m64"
191 SFLAGS="${SFLAGS} -m64"
193 if test "${ZLIBGCCWARN}" = "YES"; then
194 CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
196 if test -z "$uname"; then
197 uname=`(uname -s || echo unknown) 2>/dev/null`
200 Linux* | linux* | GNU | GNU/* | solaris*)
201 LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
202 *BSD | *bsd* | DragonFly)
203 LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"}
204 LDCONFIG="ldconfig -m" ;;
205 CYGWIN* | Cygwin* | cygwin* | OS/2*)
209 rm -f $test.[co] $test $test$shared_ext
210 echo "Please use win32/Makefile.gcc instead." | tee -a configure.log
212 LDSHARED=${LDSHARED-"$cc -shared"}
215 QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
216 # (alain.bonnefoy@icbt.com)
217 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
219 LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
220 case `(uname -m || echo unknown) 2>/dev/null` in
223 SHAREDLIB='libz.so' ;;
226 SHAREDLIB='libz.sl' ;;
230 SHAREDLIB=libz$shared_ext
231 SHAREDLIBV=libz.$VER$shared_ext
232 SHAREDLIBM=libz.$VER1$shared_ext
233 LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
234 if libtool -V 2>&1 | grep Apple > /dev/null; then
237 AR="/usr/bin/libtool"
240 *) LDSHARED=${LDSHARED-"$cc -shared"} ;;
243 # find system name and corresponding cc options
246 echo ... using $CC >> configure.log
247 if test -z "$uname"; then
248 uname=`(uname -sr || echo unknown) 2>/dev/null`
251 HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
252 CFLAGS=${CFLAGS-"-O"}
253 # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
254 LDSHARED=${LDSHARED-"ld -b"}
255 case `(uname -m || echo unknown) 2>/dev/null` in
258 SHAREDLIB='libz.so' ;;
261 SHAREDLIB='libz.sl' ;;
263 IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
264 CFLAGS=${CFLAGS-"-ansi -O2"}
265 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
266 OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
267 CFLAGS=${CFLAGS-"-O -std1"}
268 LDFLAGS="${LDFLAGS} -Wl,-rpath,."
269 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
270 OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
271 CFLAGS=${CFLAGS-"-O -std1"}
272 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
273 QNX*) SFLAGS=${CFLAGS-"-4 -O"}
274 CFLAGS=${CFLAGS-"-4 -O"}
275 LDSHARED=${LDSHARED-"cc"}
276 RANLIB=${RANLIB-"true"}
279 SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
280 CFLAGS=${CFLAGS-"-O3"}
281 LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
282 SunOS\ 5* | solaris*)
283 LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"}
284 SFLAGS=${CFLAGS-"-fast -KPIC"}
285 CFLAGS=${CFLAGS-"-fast"}
286 if test $build64 -eq 1; then
287 # old versions of SunPRO/Workshop/Studio don't support -m64,
288 # but newer ones do. Check for it.
289 flag64=`$CC -flags | egrep -- '^-m64'`
290 if test x"$flag64" != x"" ; then
291 CFLAGS="${CFLAGS} -m64"
292 SFLAGS="${SFLAGS} -m64"
294 case `(uname -m || echo unknown) 2>/dev/null` in
296 SFLAGS="$SFLAGS -xarch=amd64"
297 CFLAGS="$CFLAGS -xarch=amd64" ;;
299 SFLAGS="$SFLAGS -xarch=v9"
300 CFLAGS="$CFLAGS -xarch=v9" ;;
305 SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
306 CFLAGS=${CFLAGS-"-O2"}
307 LDSHARED=${LDSHARED-"ld"} ;;
308 SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
309 CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
310 LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
311 UNIX_System_V\ 4.2.0)
312 SFLAGS=${CFLAGS-"-KPIC -O"}
313 CFLAGS=${CFLAGS-"-O"}
314 LDSHARED=${LDSHARED-"cc -G"} ;;
316 SFLAGS=${CFLAGS-"-Kconform_pic -O"}
317 CFLAGS=${CFLAGS-"-O"}
318 LDSHARED=${LDSHARED-"cc -G"} ;;
320 SFLAGS=${CFLAGS-"-KPIC -O"}
321 CFLAGS=${CFLAGS-"-O"}
322 LDSHARED=${LDSHARED-"cc -G"} ;;
323 AIX*) # Courtesy of dbakker@arrayasolutions.com
324 SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
325 CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
326 LDSHARED=${LDSHARED-"xlc -G"} ;;
327 # send working options for other systems to zlib@gzip.org
328 *) SFLAGS=${CFLAGS-"-O"}
329 CFLAGS=${CFLAGS-"-O"}
330 LDSHARED=${LDSHARED-"cc -shared"} ;;
334 # destination names for shared library if not defined above
335 SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
336 SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
337 SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
339 echo >> configure.log
341 # see if shared library build supported
342 if test $shared -eq 1; then
343 echo Checking for shared library support... | tee -a configure.log
344 # we must test in two steps (cc then ld), required at least on SunOS 4.x
345 if try $CC -w -c $SFLAGS $test.c &&
346 try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
347 echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log
348 elif test -z "$old_cc" -a -z "$old_cflags"; then
349 echo No shared library support. | tee -a configure.log
352 echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log
356 if test $shared -eq 0; then
359 TEST="all teststatic"
363 echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log
366 TEST="all teststatic testshared"
369 echo >> configure.log
371 # check for underscores in external names for use by assembler code
375 echo >> configure.log
376 show "$NM $test.o | grep _hello"
377 if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then
378 CPP="$CPP -DNO_UNDERLINE"
379 echo Checking for underline in external names... No. | tee -a configure.log
381 echo Checking for underline in external names... Yes. | tee -a configure.log
385 echo >> configure.log
387 # check for large file support, and if none, check for fseeko()
389 #include <sys/types.h>
392 if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
393 CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
394 SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
396 TEST="${TEST} test64"
397 echo "Checking for off64_t... Yes." | tee -a configure.log
398 echo "Checking for fseeko... Yes." | tee -a configure.log
400 echo "Checking for off64_t... No." | tee -a configure.log
401 echo >> configure.log
409 if try $CC $CFLAGS -o $test $test.c; then
410 echo "Checking for fseeko... Yes." | tee -a configure.log
412 CFLAGS="${CFLAGS} -DNO_FSEEKO"
413 SFLAGS="${SFLAGS} -DNO_FSEEKO"
414 echo "Checking for fseeko... No." | tee -a configure.log
418 echo >> configure.log
420 # check for strerror() for use by gz* functions
424 int main() { return strlen(strerror(errno)); }
426 if try $CC $CFLAGS -o $test $test.c; then
427 echo "Checking for strerror... Yes." | tee -a configure.log
429 CFLAGS="${CFLAGS} -DNO_STRERROR"
430 SFLAGS="${SFLAGS} -DNO_STRERROR"
431 echo "Checking for strerror... No." | tee -a configure.log
434 # copy clean zconf.h for subsequent edits
435 cp -p zconf.h.in zconf.h
437 echo >> configure.log
439 # check for unistd.h and save result in zconf.h
442 int main() { return 0; }
444 if try $CC -c $CFLAGS $test.c; then
445 sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
446 mv zconf.temp.h zconf.h
447 echo "Checking for unistd.h... Yes." | tee -a configure.log
449 echo "Checking for unistd.h... No." | tee -a configure.log
452 echo >> configure.log
454 # check for stdarg.h and save result in zconf.h
457 int main() { return 0; }
459 if try $CC -c $CFLAGS $test.c; then
460 sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
461 mv zconf.temp.h zconf.h
462 echo "Checking for stdarg.h... Yes." | tee -a configure.log
464 echo "Checking for stdarg.h... No." | tee -a configure.log
467 # if the z_ prefix was requested, save that in zconf.h
468 if test $zprefix -eq 1; then
469 sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
470 mv zconf.temp.h zconf.h
471 echo >> configure.log
472 echo "Using z_ prefix on all symbols." | tee -a configure.log
475 # if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists
476 if test $solo -eq 1; then
477 sed '/#define ZCONF_H/a\
480 ' < zconf.h > zconf.temp.h
481 mv zconf.temp.h zconf.h
483 PIC_OBJC='$(PIC_OBJZ)'
486 # if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X
487 if test $cover -eq 1; then
488 CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
489 if test -n "$GCC_CLASSIC"; then
494 echo >> configure.log
496 # conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions
497 # (using stdarg or not), with or without "n" (proving size of buffer), and with or without a
498 # return value. The most secure result is vsnprintf() with a return value. snprintf() with a
499 # return value is secure as well, but then gzprintf() will be limited to 20 arguments.
512 if try $CC -c $CFLAGS $test.c; then
513 echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log
515 echo >> configure.log
519 int mytest(const char *fmt, ...)
524 vsnprintf(buf, sizeof(buf), fmt, ap);
530 return (mytest("Hello%d\n", 1));
533 if try $CC $CFLAGS -o $test $test.c; then
534 echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log
536 echo >> configure.log
540 int mytest(const char *fmt, ...)
546 n = vsnprintf(buf, sizeof(buf), fmt, ap);
552 return (mytest("Hello%d\n", 1));
556 if try $CC -c $CFLAGS $test.c; then
557 echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log
559 CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
560 SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
561 echo "Checking for return value of vsnprintf()... No." | tee -a configure.log
562 echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log
563 echo " can build but will be open to possible string-format security" | tee -a configure.log
564 echo " vulnerabilities." | tee -a configure.log
567 CFLAGS="$CFLAGS -DNO_vsnprintf"
568 SFLAGS="$SFLAGS -DNO_vsnprintf"
569 echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log
570 echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log
571 echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
572 echo " vulnerabilities." | tee -a configure.log
574 echo >> configure.log
578 int mytest(const char *fmt, ...)
584 n = vsprintf(buf, fmt, ap);
590 return (mytest("Hello%d\n", 1));
594 if try $CC -c $CFLAGS $test.c; then
595 echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log
597 CFLAGS="$CFLAGS -DHAS_vsprintf_void"
598 SFLAGS="$SFLAGS -DHAS_vsprintf_void"
599 echo "Checking for return value of vsprintf()... No." | tee -a configure.log
600 echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log
601 echo " can build but will be open to possible string-format security" | tee -a configure.log
602 echo " vulnerabilities." | tee -a configure.log
606 echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log
608 echo >> configure.log
614 snprintf(buf, sizeof(buf), "%s", "foo");
623 if try $CC $CFLAGS -o $test $test.c; then
624 echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log
626 echo >> configure.log
632 return snprintf(buf, sizeof(buf), "%s", "foo");
640 if try $CC -c $CFLAGS $test.c; then
641 echo "Checking for return value of snprintf()... Yes." | tee -a configure.log
643 CFLAGS="$CFLAGS -DHAS_snprintf_void"
644 SFLAGS="$SFLAGS -DHAS_snprintf_void"
645 echo "Checking for return value of snprintf()... No." | tee -a configure.log
646 echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log
647 echo " can build but will be open to possible string-format security" | tee -a configure.log
648 echo " vulnerabilities." | tee -a configure.log
651 CFLAGS="$CFLAGS -DNO_snprintf"
652 SFLAGS="$SFLAGS -DNO_snprintf"
653 echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log
654 echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log
655 echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
656 echo " vulnerabilities." | tee -a configure.log
658 echo >> configure.log
664 return sprintf(buf, "%s", "foo");
672 if try $CC -c $CFLAGS $test.c; then
673 echo "Checking for return value of sprintf()... Yes." | tee -a configure.log
675 CFLAGS="$CFLAGS -DHAS_sprintf_void"
676 SFLAGS="$SFLAGS -DHAS_sprintf_void"
677 echo "Checking for return value of sprintf()... No." | tee -a configure.log
678 echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log
679 echo " can build but will be open to possible string-format security" | tee -a configure.log
680 echo " vulnerabilities." | tee -a configure.log
685 # see if we can hide zlib internal symbols that are linked between separate source files
686 if test "$gcc" -eq 1; then
687 echo >> configure.log
689 #define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
690 int ZLIB_INTERNAL foo;
696 if tryboth $CC -c $CFLAGS $test.c; then
697 CFLAGS="$CFLAGS -DHAVE_HIDDEN"
698 SFLAGS="$SFLAGS -DHAVE_HIDDEN"
699 echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log
701 echo "Checking for attribute(visibility) support... No." | tee -a configure.log
705 echo >> configure.log
707 # find a four-byte unsiged integer type for crc calculations
710 #define is32(n,t) for(n=1,k=0;n;n<<=1,k++);if(k==32){puts(t);return 0;}
717 is32(l, "unsigned long")
718 is32(s, "unsigned short")
723 if try $CC $CFLAGS $test.c -o $test && Z_U4=`./$test` && test -n "$Z_U4"; then
724 sed < zconf.h "/#define Z_U4/s/\/\* \.\/configure may/#define Z_U4 $Z_U4 \/* .\/configure put the/" > zconf.temp.h
725 mv zconf.temp.h zconf.h
726 echo "Looking for a four-byte integer type... Found." | tee -a configure.log
728 echo "Looking for a four-byte integer type... Not found." | tee -a configure.log
731 # clean up files produced by running the compiler and linker
732 rm -f $test.[co] $test $test$shared_ext $test.gcno
734 # show the results in the log
735 echo >> configure.log
736 echo ALL = $ALL >> configure.log
737 echo AR = $AR >> configure.log
738 echo ARFLAGS = $ARFLAGS >> configure.log
739 echo CC = $CC >> configure.log
740 echo CFLAGS = $CFLAGS >> configure.log
741 echo CPP = $CPP >> configure.log
742 echo EXE = $EXE >> configure.log
743 echo LDCONFIG = $LDCONFIG >> configure.log
744 echo LDFLAGS = $LDFLAGS >> configure.log
745 echo LDSHARED = $LDSHARED >> configure.log
746 echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
747 echo OBJC = $OBJC >> configure.log
748 echo PIC_OBJC = $PIC_OBJC >> configure.log
749 echo RANLIB = $RANLIB >> configure.log
750 echo SFLAGS = $SFLAGS >> configure.log
751 echo SHAREDLIB = $SHAREDLIB >> configure.log
752 echo SHAREDLIBM = $SHAREDLIBM >> configure.log
753 echo SHAREDLIBV = $SHAREDLIBV >> configure.log
754 echo STATICLIB = $STATICLIB >> configure.log
755 echo TEST = $TEST >> configure.log
756 echo VER = $VER >> configure.log
757 echo Z_U4 = $Z_U4 >> configure.log
758 echo exec_prefix = $exec_prefix >> configure.log
759 echo includedir = $includedir >> configure.log
760 echo libdir = $libdir >> configure.log
761 echo mandir = $mandir >> configure.log
762 echo prefix = $prefix >> configure.log
763 echo sharedlibdir = $sharedlibdir >> configure.log
764 echo uname = $uname >> configure.log
765 echo -------------------- >> configure.log
766 echo >> configure.log
767 echo >> configure.log
769 # udpate Makefile with the configure results
772 /^CFLAGS *=/s#=.*#=$CFLAGS#
773 /^SFLAGS *=/s#=.*#=$SFLAGS#
774 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
775 /^LDSHARED *=/s#=.*#=$LDSHARED#
776 /^CPP *=/s#=.*#=$CPP#
777 /^STATICLIB *=/s#=.*#=$STATICLIB#
778 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
779 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
780 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
782 /^ARFLAGS *=/s#=.*#=$ARFLAGS#
783 /^RANLIB *=/s#=.*#=$RANLIB#
784 /^LDCONFIG *=/s#=.*#=$LDCONFIG#
785 /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
786 /^EXE *=/s#=.*#=$EXE#
787 /^prefix *=/s#=.*#=$prefix#
788 /^exec_prefix *=/s#=.*#=$exec_prefix#
789 /^libdir *=/s#=.*#=$libdir#
790 /^sharedlibdir *=/s#=.*#=$sharedlibdir#
791 /^includedir *=/s#=.*#=$includedir#
792 /^mandir *=/s#=.*#=$mandir#
793 /^OBJC *=/s#=.*#= $OBJC#
794 /^PIC_OBJC *=/s#=.*#= $PIC_OBJC#
795 /^all: */s#:.*#: $ALL#
796 /^test: */s#:.*#: $TEST#
799 # create zlib.pc with the configure results
802 /^CFLAGS *=/s#=.*#=$CFLAGS#
803 /^CPP *=/s#=.*#=$CPP#
804 /^LDSHARED *=/s#=.*#=$LDSHARED#
805 /^STATICLIB *=/s#=.*#=$STATICLIB#
806 /^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
807 /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
808 /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
810 /^ARFLAGS *=/s#=.*#=$ARFLAGS#
811 /^RANLIB *=/s#=.*#=$RANLIB#
812 /^EXE *=/s#=.*#=$EXE#
813 /^prefix *=/s#=.*#=$prefix#
814 /^exec_prefix *=/s#=.*#=$exec_prefix#
815 /^libdir *=/s#=.*#=$libdir#
816 /^sharedlibdir *=/s#=.*#=$sharedlibdir#
817 /^includedir *=/s#=.*#=$includedir#
818 /^mandir *=/s#=.*#=$mandir#
819 /^LDFLAGS *=/s#=.*#=$LDFLAGS#
821 s/\@VERSION\@/$VER/g;