configure@ 95259

Last change on this file since 95259 was 95239, checked in by vboxsync, 2 years ago
libs/zlib: Upgrade to 1.2.12, bugref:8515
Property svn:eol-style set to `LF` Property svn:executable set to ``*
File size: 27.8 KB

Line
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 $SRCDIR = "."; then
24	ZINC=""
25	ZINCOUT="-I."
26	SRCDIR=""
27	else
28	ZINC='-include zconf.h'
29	ZINCOUT='-I. -I$(SRCDIR)'
30	SRCDIR="$SRCDIR/"
31	fi
32
33	# set command prefix for cross-compilation
34	if [ -n "${CHOST}" ]; then
35	uname="`echo "${CHOST}" \| sed -e 's/^[^-]-$[^-]$$/\1/' -e 's/^[^-]-[^-]-$[^-]$$/\1/' -e 's/^[^-]-[^-]-$[^-]$-.*$/\1/'`"
36	CROSS_PREFIX="${CHOST}-"
37	fi
38
39	# destination name for static library
40	STATICLIB=libz.a
41
42	# extract zlib version numbers from zlib.h
43	VER=`sed -n -e '/VERSION "/s/."$.$".*/\1/p' < ${SRCDIR}zlib.h`
44	VER3=`sed -n -e '/VERSION "/s/."$[0-9]\\.[0-9]\\.[0-9]$.*/\1/p' < ${SRCDIR}zlib.h`
45	VER2=`sed -n -e '/VERSION "/s/."$[0-9]\\.[0-9]$\\../\1/p' < ${SRCDIR}zlib.h`
46	VER1=`sed -n -e '/VERSION "/s/."$[0-9]$\\..*/\1/p' < ${SRCDIR}zlib.h`
47
48	# establish commands for library building
49	if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
50	AR=${AR-"${CROSS_PREFIX}ar"}
51	test -n "${CROSS_PREFIX}" && echo Using ${AR} \| tee -a configure.log
52	else
53	AR=${AR-"ar"}
54	test -n "${CROSS_PREFIX}" && echo Using ${AR} \| tee -a configure.log
55	fi
56	ARFLAGS=${ARFLAGS-"rc"}
57	if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
58	RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
59	test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} \| tee -a configure.log
60	else
61	RANLIB=${RANLIB-"ranlib"}
62	fi
63	if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
64	NM=${NM-"${CROSS_PREFIX}nm"}
65	test -n "${CROSS_PREFIX}" && echo Using ${NM} \| tee -a configure.log
66	else
67	NM=${NM-"nm"}
68	fi
69
70	# set defaults before processing command line options
71	LDCONFIG=${LDCONFIG-"ldconfig"}
72	LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
73	ARCHS=
74	prefix=${prefix-/usr/local}
75	exec_prefix=${exec_prefix-'${prefix}'}
76	libdir=${libdir-'${exec_prefix}/lib'}
77	sharedlibdir=${sharedlibdir-'${libdir}'}
78	includedir=${includedir-'${prefix}/include'}
79	mandir=${mandir-'${prefix}/share/man'}
80	shared_ext='.so'
81	shared=1
82	solo=0
83	cover=0
84	zprefix=0
85	zconst=0
86	build64=0
87	gcc=0
88	warn=0
89	debug=0
90	sanitize=0
91	old_cc="$CC"
92	old_cflags="$CFLAGS"
93	OBJC='$(OBJZ) $(OBJG)'
94	PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
95
96	# leave this script, optionally in a bad way
97	leave()
98	{
99	if test "$*" != "0"; then
100	echo "** $0 aborting." \| tee -a configure.log
101	fi
102	rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version
103	echo -------------------- >> configure.log
104	echo >> configure.log
105	echo >> configure.log
106	exit $1
107	}
108
109	# process command line options
110	while test $# -ge 1
111	do
112	case "$1" in
113	-h* \| --help)
114	echo 'usage:' \| tee -a configure.log
115	echo ' configure [--const] [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' \| tee -a configure.log
116	echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' \| tee -a configure.log
117	echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' \| tee -a configure.log
118	exit 0 ;;
119	-p= \| --prefix=) prefix=`echo $1 \| sed 's/.=//'`; shift ;;
120	-e= \| --eprefix=) exec_prefix=`echo $1 \| sed 's/.=//'`; shift ;;
121	-l= \| --libdir=) libdir=`echo $1 \| sed 's/.=//'`; shift ;;
122	--sharedlibdir=) sharedlibdir=`echo $1 \| sed 's/.=//'`; shift ;;
123	-i= \| --includedir=) includedir=`echo $1 \| sed 's/.=//'`;shift ;;
124	-u= \| --uname=) uname=`echo $1 \| sed 's/.=//'`;shift ;;
125	-p* \| --prefix) prefix="$2"; shift; shift ;;
126	-e* \| --eprefix) exec_prefix="$2"; shift; shift ;;
127	-l* \| --libdir) libdir="$2"; shift; shift ;;
128	-i* \| --includedir) includedir="$2"; shift; shift ;;
129	-s* \| --shared \| --enable-shared) shared=1; shift ;;
130	-t \| --static) shared=0; shift ;;
131	--solo) solo=1; shift ;;
132	--cover) cover=1; shift ;;
133	-z* \| --zprefix) zprefix=1; shift ;;
134	-6* \| --64) build64=1; shift ;;
135	-a= \| --archs=) ARCHS=`echo $1 \| sed 's/.=//'`; shift ;;
136	--sysconfdir=*) echo "ignored option: --sysconfdir" \| tee -a configure.log; shift ;;
137	--localstatedir=*) echo "ignored option: --localstatedir" \| tee -a configure.log; shift ;;
138	-c* \| --const) zconst=1; shift ;;
139	-w* \| --warn) warn=1; shift ;;
140	-d* \| --debug) debug=1; shift ;;
141	--sanitize) sanitize=1; shift ;;
142	*)
143	echo "unknown option: $1" \| tee -a configure.log
144	echo "$0 --help for help" \| tee -a configure.log
145	leave 1;;
146	esac
147	done
148
149	# temporary file name
150	test=ztest$$
151
152	# put arguments in log, also put test file in log if used in arguments
153	show()
154	{
155	case "$*" in
156	$test.c)
157	echo === $test.c === >> configure.log
158	cat $test.c >> configure.log
159	echo === >> configure.log;;
160	esac
161	echo $* >> configure.log
162	}
163
164	# check for gcc vs. cc and set compile and link flags based on the system identified by uname
165	cat > $test.c <<EOF
166	extern int getchar();
167	int hello() {return getchar();}
168	EOF
169
170	if test -z "$CC"; then
171	echo Checking for ${CROSS_PREFIX}gcc... \| tee -a configure.log
172	if ${CROSS_PREFIX}gcc -v >/dev/null 2>&1; then
173	cc=${CROSS_PREFIX}gcc
174	else
175	cc=${CROSS_PREFIX}cc
176	fi
177	fi
178	cflags=${CFLAGS-"-O3"}
179	# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
180	case "$cc" in
181	gcc) gcc=1 ;;
182	clang) gcc=1 ;;
183	esac
184	case `$cc -v 2>&1` in
185	gcc) gcc=1 ;;
186	clang) gcc=1 ;;
187	esac
188
189	show $cc -c $test.c
190	if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
191	echo ... using gcc >> configure.log
192	CC="$cc"
193	CFLAGS="${CFLAGS--O3}"
194	SFLAGS="${CFLAGS--O3} -fPIC"
195	if test "$ARCHS"; then
196	CFLAGS="${CFLAGS} ${ARCHS}"
197	LDFLAGS="${LDFLAGS} ${ARCHS}"
198	fi
199	if test $build64 -eq 1; then
200	CFLAGS="${CFLAGS} -m64"
201	SFLAGS="${SFLAGS} -m64"
202	fi
203	if test "$warn" -eq 1; then
204	if test "$zconst" -eq 1; then
205	CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST"
206	else
207	CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
208	fi
209	fi
210	if test $sanitize -eq 1; then
211	CFLAGS="${CFLAGS} -fsanitize=address"
212	fi
213	if test $debug -eq 1; then
214	CFLAGS="${CFLAGS} -DZLIB_DEBUG"
215	SFLAGS="${SFLAGS} -DZLIB_DEBUG"
216	fi
217	if test -z "$uname"; then
218	uname=`(uname -s \|\| echo unknown) 2>/dev/null`
219	fi
220	case "$uname" in
221	Linux* \| linux* \| GNU \| GNU/* \| solaris*)
222	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
223	BSD \| bsd* \| DragonFly)
224	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
225	LDCONFIG="ldconfig -m" ;;
226	CYGWIN* \| Cygwin* \| cygwin* \| OS/2*)
227	EXE='.exe' ;;
228	MINGW* \| mingw*)
229	# temporary bypass
230	rm -f $test.[co] $test $test$shared_ext
231	echo "Please use win32/Makefile.gcc instead." \| tee -a configure.log
232	leave 1
233	LDSHARED=${LDSHARED-"$cc -shared"}
234	LDSHAREDLIBC=""
235	EXE='.exe' ;;
236	QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
237	# (alain.bonnefoy@icbt.com)
238	LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
239	HP-UX*)
240	LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
241	case `(uname -m \|\| echo unknown) 2>/dev/null` in
242	ia64)
243	shared_ext='.so'
244	SHAREDLIB='libz.so' ;;
245	*)
246	shared_ext='.sl'
247	SHAREDLIB='libz.sl' ;;
248	esac ;;
249	Darwin* \| darwin*)
250	shared_ext='.dylib'
251	SHAREDLIB=libz$shared_ext
252	SHAREDLIBV=libz.$VER$shared_ext
253	SHAREDLIBM=libz.$VER1$shared_ext
254	LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
255	if libtool -V 2>&1 \| grep Apple > /dev/null; then
256	AR="libtool"
257	else
258	AR="/usr/bin/libtool"
259	fi
260	ARFLAGS="-o" ;;
261	*) LDSHARED=${LDSHARED-"$cc -shared"} ;;
262	esac
263	else
264	# find system name and corresponding cc options
265	CC=${CC-cc}
266	gcc=0
267	echo ... using $CC >> configure.log
268	if test -z "$uname"; then
269	uname=`(uname -sr \|\| echo unknown) 2>/dev/null`
270	fi
271	case "$uname" in
272	HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
273	CFLAGS=${CFLAGS-"-O"}
274	# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
275	LDSHARED=${LDSHARED-"ld -b"}
276	case `(uname -m \|\| echo unknown) 2>/dev/null` in
277	ia64)
278	shared_ext='.so'
279	SHAREDLIB='libz.so' ;;
280	*)
281	shared_ext='.sl'
282	SHAREDLIB='libz.sl' ;;
283	esac ;;
284	IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
285	CFLAGS=${CFLAGS-"-ansi -O2"}
286	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
287	OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
288	CFLAGS=${CFLAGS-"-O -std1"}
289	LDFLAGS="${LDFLAGS} -Wl,-rpath,."
290	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
291	OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
292	CFLAGS=${CFLAGS-"-O -std1"}
293	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
294	QNX*) SFLAGS=${CFLAGS-"-4 -O"}
295	CFLAGS=${CFLAGS-"-4 -O"}
296	LDSHARED=${LDSHARED-"cc"}
297	RANLIB=${RANLIB-"true"}
298	AR="cc"
299	ARFLAGS="-A" ;;
300	SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
301	CFLAGS=${CFLAGS-"-O3"}
302	LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
303	SunOS\ 5* \| solaris*)
304	LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"}
305	SFLAGS=${CFLAGS-"-fast -KPIC"}
306	CFLAGS=${CFLAGS-"-fast"}
307	if test $build64 -eq 1; then
308	# old versions of SunPRO/Workshop/Studio don't support -m64,
309	# but newer ones do. Check for it.
310	flag64=`$CC -flags \| egrep -- '^-m64'`
311	if test x"$flag64" != x"" ; then
312	CFLAGS="${CFLAGS} -m64"
313	SFLAGS="${SFLAGS} -m64"
314	else
315	case `(uname -m \|\| echo unknown) 2>/dev/null` in
316	i86*)
317	SFLAGS="$SFLAGS -xarch=amd64"
318	CFLAGS="$CFLAGS -xarch=amd64" ;;
319	*)
320	SFLAGS="$SFLAGS -xarch=v9"
321	CFLAGS="$CFLAGS -xarch=v9" ;;
322	esac
323	fi
324	fi
325	if test -n "$ZINC"; then
326	ZINC='-I- -I. -I$(SRCDIR)'
327	fi
328	;;
329	SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
330	CFLAGS=${CFLAGS-"-O2"}
331	LDSHARED=${LDSHARED-"ld"} ;;
332	SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
333	CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
334	LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
335	UNIX_System_V\ 4.2.0)
336	SFLAGS=${CFLAGS-"-KPIC -O"}
337	CFLAGS=${CFLAGS-"-O"}
338	LDSHARED=${LDSHARED-"cc -G"} ;;
339	UNIX_SV\ 4.2MP)
340	SFLAGS=${CFLAGS-"-Kconform_pic -O"}
341	CFLAGS=${CFLAGS-"-O"}
342	LDSHARED=${LDSHARED-"cc -G"} ;;
343	OpenUNIX\ 5)
344	SFLAGS=${CFLAGS-"-KPIC -O"}
345	CFLAGS=${CFLAGS-"-O"}
346	LDSHARED=${LDSHARED-"cc -G"} ;;
347	AIX*) # Courtesy of dbakker@arrayasolutions.com
348	SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
349	CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
350	LDSHARED=${LDSHARED-"xlc -G"} ;;
351	# send working options for other systems to zlib@gzip.org
352	*) SFLAGS=${CFLAGS-"-O"}
353	CFLAGS=${CFLAGS-"-O"}
354	LDSHARED=${LDSHARED-"cc -shared"} ;;
355	esac
356	fi
357
358	# destination names for shared library if not defined above
359	SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
360	SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
361	SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
362
363	echo >> configure.log
364
365	# define functions for testing compiler and library characteristics and logging the results
366
367	cat > $test.c <<EOF
368	#error error
369	EOF
370	if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
371	try()
372	{
373	show $*
374	test "`( $* ) 2>&1 \| tee -a configure.log`" = ""
375	}
376	echo - using any output from compiler to indicate an error >> configure.log
377	else
378	try()
379	{
380	show $*
381	got=`( $* ) 2>&1`
382	ret=$?
383	if test "$got" != ""; then
384	printf "%s\n" "$got" >> configure.log
385	fi
386	if test $ret -ne 0; then
387	echo "(exit code "$ret")" >> configure.log
388	fi
389	return $ret
390	}
391	fi
392
393	tryboth()
394	{
395	show $*
396	got=`( $* ) 2>&1`
397	ret=$?
398	if test "$got" != ""; then
399	printf "%s\n" "$got" >> configure.log
400	fi
401	if test $ret -ne 0; then
402	echo "(exit code "$ret")" >> configure.log
403	return $ret
404	fi
405	test "$got" = ""
406	}
407
408	cat > $test.c << EOF
409	int foo() { return 0; }
410	EOF
411	echo "Checking for obsessive-compulsive compiler options..." >> configure.log
412	if try $CC -c $CFLAGS $test.c; then
413	:
414	else
415	echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." \| tee -a configure.log
416	leave 1
417	fi
418
419	echo >> configure.log
420
421	# see if shared library build supported
422	cat > $test.c <<EOF
423	extern int getchar();
424	int hello() {return getchar();}
425	EOF
426	if test $shared -eq 1; then
427	echo Checking for shared library support... \| tee -a configure.log
428	# we must test in two steps (cc then ld), required at least on SunOS 4.x
429	if try $CC -w -c $SFLAGS $test.c &&
430	try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
431	echo Building shared library $SHAREDLIBV with $CC. \| tee -a configure.log
432	elif test -z "$old_cc" -a -z "$old_cflags"; then
433	echo No shared library support. \| tee -a configure.log
434	shared=0;
435	else
436	echo 'No shared library support; try without defining CC and CFLAGS' \| tee -a configure.log
437	shared=0;
438	fi
439	fi
440	if test $shared -eq 0; then
441	LDSHARED="$CC"
442	ALL="static"
443	TEST="all teststatic"
444	SHAREDLIB=""
445	SHAREDLIBV=""
446	SHAREDLIBM=""
447	echo Building static library $STATICLIB version $VER with $CC. \| tee -a configure.log
448	else
449	ALL="static shared"
450	TEST="all teststatic testshared"
451	fi
452
453	# check for underscores in external names for use by assembler code
454	CPP=${CPP-"$CC -E"}
455	case $CFLAGS in
456	ASMV)
457	echo >> configure.log
458	show "$NM $test.o \| grep _hello"
459	if test "`$NM $test.o \| grep _hello \| tee -a configure.log`" = ""; then
460	CPP="$CPP -DNO_UNDERLINE"
461	echo Checking for underline in external names... No. \| tee -a configure.log
462	else
463	echo Checking for underline in external names... Yes. \| tee -a configure.log
464	fi ;;
465	esac
466
467	echo >> configure.log
468
469	# check for size_t
470	cat > $test.c <<EOF
471	#include <stdio.h>
472	#include <stdlib.h>
473	size_t dummy = 0;
474	EOF
475	if try $CC -c $CFLAGS $test.c; then
476	echo "Checking for size_t... Yes." \| tee -a configure.log
477	else
478	echo "Checking for size_t... No." \| tee -a configure.log
479	# find a size_t integer type
480	# check for long long
481	cat > $test.c << EOF
482	long long dummy = 0;
483	EOF
484	if try $CC -c $CFLAGS $test.c; then
485	echo "Checking for long long... Yes." \| tee -a configure.log
486	cat > $test.c <<EOF
487	#include <stdio.h>
488	int main(void) {
489	if (sizeof(void *) <= sizeof(int)) puts("int");
490	else if (sizeof(void *) <= sizeof(long)) puts("long");
491	else puts("z_longlong");
492	return 0;
493	}
494	EOF
495	else
496	echo "Checking for long long... No." \| tee -a configure.log
497	cat > $test.c <<EOF
498	#include <stdio.h>
499	int main(void) {
500	if (sizeof(void *) <= sizeof(int)) puts("int");
501	else puts("long");
502	return 0;
503	}
504	EOF
505	fi
506	if try $CC $CFLAGS -o $test $test.c; then
507	sizet=`./$test`
508	echo "Checking for a pointer-size integer type..." $sizet"." \| tee -a configure.log
509	CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}"
510	SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}"
511	else
512	echo "Checking for a pointer-size integer type... not found." \| tee -a configure.log
513	fi
514	fi
515
516	echo >> configure.log
517
518	# check for large file support, and if none, check for fseeko()
519	cat > $test.c <<EOF
520	#include <sys/types.h>
521	off64_t dummy = 0;
522	EOF
523	if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
524	CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
525	SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
526	ALL="${ALL} all64"
527	TEST="${TEST} test64"
528	echo "Checking for off64_t... Yes." \| tee -a configure.log
529	echo "Checking for fseeko... Yes." \| tee -a configure.log
530	else
531	echo "Checking for off64_t... No." \| tee -a configure.log
532	echo >> configure.log
533	cat > $test.c <<EOF
534	#include <stdio.h>
535	int main(void) {
536	fseeko(NULL, 0, 0);
537	return 0;
538	}
539	EOF
540	if try $CC $CFLAGS -o $test $test.c; then
541	echo "Checking for fseeko... Yes." \| tee -a configure.log
542	else
543	CFLAGS="${CFLAGS} -DNO_FSEEKO"
544	SFLAGS="${SFLAGS} -DNO_FSEEKO"
545	echo "Checking for fseeko... No." \| tee -a configure.log
546	fi
547	fi
548
549	echo >> configure.log
550
551	# check for strerror() for use by gz* functions
552	cat > $test.c <<EOF
553	#include <string.h>
554	#include <errno.h>
555	int main() { return strlen(strerror(errno)); }
556	EOF
557	if try $CC $CFLAGS -o $test $test.c; then
558	echo "Checking for strerror... Yes." \| tee -a configure.log
559	else
560	CFLAGS="${CFLAGS} -DNO_STRERROR"
561	SFLAGS="${SFLAGS} -DNO_STRERROR"
562	echo "Checking for strerror... No." \| tee -a configure.log
563	fi
564
565	# copy clean zconf.h for subsequent edits
566	cp -p ${SRCDIR}zconf.h.in zconf.h
567
568	echo >> configure.log
569
570	# check for unistd.h and save result in zconf.h
571	cat > $test.c <<EOF
572	#include <unistd.h>
573	int main() { return 0; }
574	EOF
575	if try $CC -c $CFLAGS $test.c; then
576	sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H$.*$ may be/ 1\1 was/" > zconf.temp.h
577	mv zconf.temp.h zconf.h
578	echo "Checking for unistd.h... Yes." \| tee -a configure.log
579	else
580	echo "Checking for unistd.h... No." \| tee -a configure.log
581	fi
582
583	echo >> configure.log
584
585	# check for stdarg.h and save result in zconf.h
586	cat > $test.c <<EOF
587	#include <stdarg.h>
588	int main() { return 0; }
589	EOF
590	if try $CC -c $CFLAGS $test.c; then
591	sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H$.*$ may be/ 1\1 was/" > zconf.temp.h
592	mv zconf.temp.h zconf.h
593	echo "Checking for stdarg.h... Yes." \| tee -a configure.log
594	else
595	echo "Checking for stdarg.h... No." \| tee -a configure.log
596	fi
597
598	# if the z_ prefix was requested, save that in zconf.h
599	if test $zprefix -eq 1; then
600	sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX$.*$ may be/ 1\1 was/" > zconf.temp.h
601	mv zconf.temp.h zconf.h
602	echo >> configure.log
603	echo "Using z_ prefix on all symbols." \| tee -a configure.log
604	fi
605
606	# if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists
607	if test $solo -eq 1; then
608	sed '/#define ZCONF_H/a\
609	#define Z_SOLO
610
611	' < zconf.h > zconf.temp.h
612	mv zconf.temp.h zconf.h
613	OBJC='$(OBJZ)'
614	PIC_OBJC='$(PIC_OBJZ)'
615	fi
616
617	# if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X
618	if test $cover -eq 1; then
619	CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
620	if test -n "$GCC_CLASSIC"; then
621	CC=$GCC_CLASSIC
622	fi
623	fi
624
625	echo >> configure.log
626
627	# conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions
628	# (using stdarg or not), with or without "n" (proving size of buffer), and with or without a
629	# return value. The most secure result is vsnprintf() with a return value. snprintf() with a
630	# return value is secure as well, but then gzprintf() will be limited to 20 arguments.
631	cat > $test.c <<EOF
632	#include <stdio.h>
633	#include <stdarg.h>
634	#include "zconf.h"
635	int main()
636	{
637	#ifndef STDC
638	choke me
639	#endif
640	return 0;
641	}
642	EOF
643	if try $CC -c $CFLAGS $test.c; then
644	echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." \| tee -a configure.log
645
646	echo >> configure.log
647	cat > $test.c <<EOF
648	#include <stdio.h>
649	#include <stdarg.h>
650	int mytest(const char *fmt, ...)
651	{
652	char buf[20];
653	va_list ap;
654	va_start(ap, fmt);
655	vsnprintf(buf, sizeof(buf), fmt, ap);
656	va_end(ap);
657	return 0;
658	}
659	int main()
660	{
661	return (mytest("Hello%d\n", 1));
662	}
663	EOF
664	if try $CC $CFLAGS -o $test $test.c; then
665	echo "Checking for vsnprintf() in stdio.h... Yes." \| tee -a configure.log
666
667	echo >> configure.log
668	cat >$test.c <<EOF
669	#include <stdio.h>
670	#include <stdarg.h>
671	int mytest(const char *fmt, ...)
672	{
673	int n;
674	char buf[20];
675	va_list ap;
676	va_start(ap, fmt);
677	n = vsnprintf(buf, sizeof(buf), fmt, ap);
678	va_end(ap);
679	return n;
680	}
681	int main()
682	{
683	return (mytest("Hello%d\n", 1));
684	}
685	EOF
686
687	if try $CC -c $CFLAGS $test.c; then
688	echo "Checking for return value of vsnprintf()... Yes." \| tee -a configure.log
689	else
690	CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
691	SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
692	echo "Checking for return value of vsnprintf()... No." \| tee -a configure.log
693	echo " WARNING: apparently vsnprintf() does not return a value. zlib" \| tee -a configure.log
694	echo " can build but will be open to possible string-format security" \| tee -a configure.log
695	echo " vulnerabilities." \| tee -a configure.log
696	fi
697	else
698	CFLAGS="$CFLAGS -DNO_vsnprintf"
699	SFLAGS="$SFLAGS -DNO_vsnprintf"
700	echo "Checking for vsnprintf() in stdio.h... No." \| tee -a configure.log
701	echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" \| tee -a configure.log
702	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
703	echo " vulnerabilities." \| tee -a configure.log
704
705	echo >> configure.log
706	cat >$test.c <<EOF
707	#include <stdio.h>
708	#include <stdarg.h>
709	int mytest(const char *fmt, ...)
710	{
711	int n;
712	char buf[20];
713	va_list ap;
714	va_start(ap, fmt);
715	n = vsprintf(buf, fmt, ap);
716	va_end(ap);
717	return n;
718	}
719	int main()
720	{
721	return (mytest("Hello%d\n", 1));
722	}
723	EOF
724
725	if try $CC -c $CFLAGS $test.c; then
726	echo "Checking for return value of vsprintf()... Yes." \| tee -a configure.log
727	else
728	CFLAGS="$CFLAGS -DHAS_vsprintf_void"
729	SFLAGS="$SFLAGS -DHAS_vsprintf_void"
730	echo "Checking for return value of vsprintf()... No." \| tee -a configure.log
731	echo " WARNING: apparently vsprintf() does not return a value. zlib" \| tee -a configure.log
732	echo " can build but will be open to possible string-format security" \| tee -a configure.log
733	echo " vulnerabilities." \| tee -a configure.log
734	fi
735	fi
736	else
737	echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." \| tee -a configure.log
738
739	echo >> configure.log
740	cat >$test.c <<EOF
741	#include <stdio.h>
742	int mytest()
743	{
744	char buf[20];
745	snprintf(buf, sizeof(buf), "%s", "foo");
746	return 0;
747	}
748	int main()
749	{
750	return (mytest());
751	}
752	EOF
753
754	if try $CC $CFLAGS -o $test $test.c; then
755	echo "Checking for snprintf() in stdio.h... Yes." \| tee -a configure.log
756
757	echo >> configure.log
758	cat >$test.c <<EOF
759	#include <stdio.h>
760	int mytest()
761	{
762	char buf[20];
763	return snprintf(buf, sizeof(buf), "%s", "foo");
764	}
765	int main()
766	{
767	return (mytest());
768	}
769	EOF
770
771	if try $CC -c $CFLAGS $test.c; then
772	echo "Checking for return value of snprintf()... Yes." \| tee -a configure.log
773	else
774	CFLAGS="$CFLAGS -DHAS_snprintf_void"
775	SFLAGS="$SFLAGS -DHAS_snprintf_void"
776	echo "Checking for return value of snprintf()... No." \| tee -a configure.log
777	echo " WARNING: apparently snprintf() does not return a value. zlib" \| tee -a configure.log
778	echo " can build but will be open to possible string-format security" \| tee -a configure.log
779	echo " vulnerabilities." \| tee -a configure.log
780	fi
781	else
782	CFLAGS="$CFLAGS -DNO_snprintf"
783	SFLAGS="$SFLAGS -DNO_snprintf"
784	echo "Checking for snprintf() in stdio.h... No." \| tee -a configure.log
785	echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" \| tee -a configure.log
786	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
787	echo " vulnerabilities." \| tee -a configure.log
788
789	echo >> configure.log
790	cat >$test.c <<EOF
791	#include <stdio.h>
792	int mytest()
793	{
794	char buf[20];
795	return sprintf(buf, "%s", "foo");
796	}
797	int main()
798	{
799	return (mytest());
800	}
801	EOF
802
803	if try $CC -c $CFLAGS $test.c; then
804	echo "Checking for return value of sprintf()... Yes." \| tee -a configure.log
805	else
806	CFLAGS="$CFLAGS -DHAS_sprintf_void"
807	SFLAGS="$SFLAGS -DHAS_sprintf_void"
808	echo "Checking for return value of sprintf()... No." \| tee -a configure.log
809	echo " WARNING: apparently sprintf() does not return a value. zlib" \| tee -a configure.log
810	echo " can build but will be open to possible string-format security" \| tee -a configure.log
811	echo " vulnerabilities." \| tee -a configure.log
812	fi
813	fi
814	fi
815
816	# see if we can hide zlib internal symbols that are linked between separate source files
817	if test "$gcc" -eq 1; then
818	echo >> configure.log
819	cat > $test.c <<EOF
820	#define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
821	int ZLIB_INTERNAL foo;
822	int main()
823	{
824	return 0;
825	}
826	EOF
827	if tryboth $CC -c $CFLAGS $test.c; then
828	CFLAGS="$CFLAGS -DHAVE_HIDDEN"
829	SFLAGS="$SFLAGS -DHAVE_HIDDEN"
830	echo "Checking for attribute(visibility) support... Yes." \| tee -a configure.log
831	else
832	echo "Checking for attribute(visibility) support... No." \| tee -a configure.log
833	fi
834	fi
835
836	# show the results in the log
837	echo >> configure.log
838	echo ALL = $ALL >> configure.log
839	echo AR = $AR >> configure.log
840	echo ARFLAGS = $ARFLAGS >> configure.log
841	echo CC = $CC >> configure.log
842	echo CFLAGS = $CFLAGS >> configure.log
843	echo CPP = $CPP >> configure.log
844	echo EXE = $EXE >> configure.log
845	echo LDCONFIG = $LDCONFIG >> configure.log
846	echo LDFLAGS = $LDFLAGS >> configure.log
847	echo LDSHARED = $LDSHARED >> configure.log
848	echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
849	echo OBJC = $OBJC >> configure.log
850	echo PIC_OBJC = $PIC_OBJC >> configure.log
851	echo RANLIB = $RANLIB >> configure.log
852	echo SFLAGS = $SFLAGS >> configure.log
853	echo SHAREDLIB = $SHAREDLIB >> configure.log
854	echo SHAREDLIBM = $SHAREDLIBM >> configure.log
855	echo SHAREDLIBV = $SHAREDLIBV >> configure.log
856	echo STATICLIB = $STATICLIB >> configure.log
857	echo TEST = $TEST >> configure.log
858	echo VER = $VER >> configure.log
859	echo SRCDIR = $SRCDIR >> configure.log
860	echo exec_prefix = $exec_prefix >> configure.log
861	echo includedir = $includedir >> configure.log
862	echo libdir = $libdir >> configure.log
863	echo mandir = $mandir >> configure.log
864	echo prefix = $prefix >> configure.log
865	echo sharedlibdir = $sharedlibdir >> configure.log
866	echo uname = $uname >> configure.log
867
868	# udpate Makefile with the configure results
869	sed < ${SRCDIR}Makefile.in "
870	/^CC =/s#=.#=$CC#
871	/^CFLAGS =/s#=.#=$CFLAGS#
872	/^SFLAGS =/s#=.#=$SFLAGS#
873	/^LDFLAGS =/s#=.#=$LDFLAGS#
874	/^LDSHARED =/s#=.#=$LDSHARED#
875	/^CPP =/s#=.#=$CPP#
876	/^STATICLIB =/s#=.#=$STATICLIB#
877	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
878	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
879	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
880	/^AR =/s#=.#=$AR#
881	/^ARFLAGS =/s#=.#=$ARFLAGS#
882	/^RANLIB =/s#=.#=$RANLIB#
883	/^LDCONFIG =/s#=.#=$LDCONFIG#
884	/^LDSHAREDLIBC =/s#=.#=$LDSHAREDLIBC#
885	/^EXE =/s#=.#=$EXE#
886	/^SRCDIR =/s#=.#=$SRCDIR#
887	/^ZINC =/s#=.#=$ZINC#
888	/^ZINCOUT =/s#=.#=$ZINCOUT#
889	/^prefix =/s#=.#=$prefix#
890	/^exec_prefix =/s#=.#=$exec_prefix#
891	/^libdir =/s#=.#=$libdir#
892	/^sharedlibdir =/s#=.#=$sharedlibdir#
893	/^includedir =/s#=.#=$includedir#
894	/^mandir =/s#=.#=$mandir#
895	/^OBJC =/s#=.#= $OBJC#
896	/^PIC_OBJC =/s#=.#= $PIC_OBJC#
897	/^all: /s#:.#: $ALL#
898	/^test: /s#:.#: $TEST#
899	" > Makefile
900
901	# create zlib.pc with the configure results
902	sed < ${SRCDIR}zlib.pc.in "
903	/^CC =/s#=.#=$CC#
904	/^CFLAGS =/s#=.#=$CFLAGS#
905	/^CPP =/s#=.#=$CPP#
906	/^LDSHARED =/s#=.#=$LDSHARED#
907	/^STATICLIB =/s#=.#=$STATICLIB#
908	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
909	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
910	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
911	/^AR =/s#=.#=$AR#
912	/^ARFLAGS =/s#=.#=$ARFLAGS#
913	/^RANLIB =/s#=.#=$RANLIB#
914	/^EXE =/s#=.#=$EXE#
915	/^prefix =/s#=.#=$prefix#
916	/^exec_prefix =/s#=.#=$exec_prefix#
917	/^libdir =/s#=.#=$libdir#
918	/^sharedlibdir =/s#=.#=$sharedlibdir#
919	/^includedir =/s#=.#=$includedir#
920	/^mandir =/s#=.#=$mandir#
921	/^LDFLAGS =/s#=.#=$LDFLAGS#
922	" \| sed -e "
923	s/\@VERSION\@/$VER/g;
924	" > zlib.pc
925
926	# done
927	leave 0

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source: vbox/trunk/src/libs/zlib-1.2.12/configure@ 95259

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