configure@ 49482

Last change on this file since 49482 was 40354, checked in by vboxsync, 13 years ago
libs/zlib-1.2.6: fix OSE
Property svn:eol-style set to `LF` Property svn:executable set to ``* Property svn:keywords set to `Author Date Id Revision`
File size: 21.8 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	echo -------------------- >> configure.log
17	echo $0 $* >> configure.log
18	date >> configure.log
19
20	if [ -n "${CHOST}" ]; then
21	uname="`echo "${CHOST}" \| sed -e 's/^[^-]-$[^-]$$/\1/' -e 's/^[^-]-[^-]-$[^-]$$/\1/' -e 's/^[^-]-[^-]-$[^-]$-.*$/\1/'`"
22	CROSS_PREFIX="${CHOST}-"
23	fi
24
25	STATICLIB=libz.a
26	VER=`sed -n -e '/VERSION "/s/."$.$".*/\1/p' < zlib.h`
27	VER3=`sed -n -e '/VERSION "/s/."$[0-9]\\.[0-9]\\.[0-9]$.*/\1/p' < zlib.h`
28	VER2=`sed -n -e '/VERSION "/s/."$[0-9]\\.[0-9]$\\../\1/p' < zlib.h`
29	VER1=`sed -n -e '/VERSION "/s/."$[0-9]$\\..*/\1/p' < zlib.h`
30	if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
31	AR=${AR-"${CROSS_PREFIX}ar"}
32	test -n "${CROSS_PREFIX}" && echo Using ${AR} \| tee -a configure.log
33	else
34	AR=${AR-"ar"}
35	test -n "${CROSS_PREFIX}" && echo Using ${AR} \| tee -a configure.log
36	fi
37	ARFLAGS=${ARFLAGS-"rc"}
38	if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
39	RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
40	test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} \| tee -a configure.log
41	else
42	RANLIB=${RANLIB-"ranlib"}
43	fi
44	if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
45	NM=${NM-"${CROSS_PREFIX}nm"}
46	test -n "${CROSS_PREFIX}" && echo Using ${NM} \| tee -a configure.log
47	else
48	NM=${NM-"nm"}
49	fi
50	LDCONFIG=${LDCONFIG-"ldconfig"}
51	LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
52	ARCHS=
53	prefix=${prefix-/usr/local}
54	exec_prefix=${exec_prefix-'${prefix}'}
55	libdir=${libdir-'${exec_prefix}/lib'}
56	sharedlibdir=${sharedlibdir-'${libdir}'}
57	includedir=${includedir-'${prefix}/include'}
58	mandir=${mandir-'${prefix}/share/man'}
59	shared_ext='.so'
60	shared=1
61	solo=0
62	cover=0
63	zprefix=0
64	build64=0
65	gcc=0
66	old_cc="$CC"
67	old_cflags="$CFLAGS"
68	OBJC='$(OBJZ) $(OBJG)'
69	PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
70
71	while test $# -ge 1
72	do
73	case "$1" in
74	-h* \| --help)
75	echo 'usage:' \| tee -a configure.log
76	echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' \| tee -a configure.log
77	echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' \| tee -a configure.log
78	echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' \| tee -a configure.log
79	exit 0 ;;
80	-p= \| --prefix=) prefix=`echo $1 \| sed 's/.=//'`; shift ;;
81	-e= \| --eprefix=) exec_prefix=`echo $1 \| sed 's/.=//'`; shift ;;
82	-l= \| --libdir=) libdir=`echo $1 \| sed 's/.=//'`; shift ;;
83	--sharedlibdir=) sharedlibdir=`echo $1 \| sed 's/.=//'`; shift ;;
84	-i= \| --includedir=) includedir=`echo $1 \| sed 's/.=//'`;shift ;;
85	-u= \| --uname=) uname=`echo $1 \| sed 's/.=//'`;shift ;;
86	-p* \| --prefix) prefix="$2"; shift; shift ;;
87	-e* \| --eprefix) exec_prefix="$2"; shift; shift ;;
88	-l* \| --libdir) libdir="$2"; shift; shift ;;
89	-i* \| --includedir) includedir="$2"; shift; shift ;;
90	-s* \| --shared \| --enable-shared) shared=1; shift ;;
91	-t \| --static) shared=0; shift ;;
92	--solo) solo=1; shift ;;
93	--cover) cover=1; shift ;;
94	-z* \| --zprefix) zprefix=1; shift ;;
95	-6* \| --64) build64=1; shift ;;
96	-a= \| --archs=) ARCHS=`echo $1 \| sed 's/.=//'`; shift ;;
97	--sysconfdir=*) echo "ignored option: --sysconfdir" \| tee -a configure.log; shift ;;
98	--localstatedir=*) echo "ignored option: --localstatedir" \| tee -a configure.log; shift ;;
99	*) echo "unknown option: $1"; echo "$0 --help for help" \| tee -a configure.log; exit 1 ;;
100	esac
101	done
102
103	test=ztest$$
104
105	show()
106	{
107	case "$*" in
108	$test.c)
109	echo === $test.c === >> configure.log
110	cat $test.c >> configure.log
111	echo === >> configure.log;;
112	esac
113	echo $* >> configure.log
114	}
115
116	cat > $test.c <<EOF
117	#error error
118	EOF
119	if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
120	try()
121	{
122	show $*
123	test "`( $* ) 2>&1 \| tee -a configure.log`" = ""
124	}
125	echo - using any output from compiler to indicate an error >> configure.log
126	else
127	try()
128	{
129	show $*
130	( $* ) >> configure.log 2>&1
131	ret=$?
132	if test $ret -ne 0; then
133	echo "(exit code "$ret")" >> configure.log
134	fi
135	return $ret
136	}
137	fi
138
139	echo >> configure.log
140
141	cat > $test.c <<EOF
142	extern int getchar();
143	int hello() {return getchar();}
144	EOF
145
146	test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... \| tee -a configure.log
147	cc=${CC-${CROSS_PREFIX}gcc}
148	cflags=${CFLAGS-"-O3"}
149	# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
150	case "$cc" in
151	gcc) gcc=1 ;;
152	esac
153	case `$cc -v 2>&1` in
154	gcc) gcc=1 ;;
155	esac
156
157	show $cc -c $cflags $test.c
158	if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
159	echo ... using gcc >> configure.log
160	CC="$cc"
161	CFLAGS="${CFLAGS--O3} ${ARCHS}"
162	SFLAGS="${CFLAGS--O3} -fPIC"
163	LDFLAGS="${LDFLAGS} ${ARCHS}"
164	if test $build64 -eq 1; then
165	CFLAGS="${CFLAGS} -m64"
166	SFLAGS="${SFLAGS} -m64"
167	fi
168	if test "${ZLIBGCCWARN}" = "YES"; then
169	CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
170	fi
171	if test -z "$uname"; then
172	uname=`(uname -s \|\| echo unknown) 2>/dev/null`
173	fi
174	case "$uname" in
175	Linux* \| linux* \| GNU \| GNU/* \| solaris*)
176	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
177	BSD \| bsd* \| DragonFly)
178	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"}
179	LDCONFIG="ldconfig -m" ;;
180	CYGWIN* \| Cygwin* \| cygwin* \| OS/2*)
181	EXE='.exe' ;;
182	MINGW* \| mingw*)
183	# temporary bypass
184	rm -f $test.[co] $test $test$shared_ext
185	echo "Please use win32/Makefile.gcc instead." \| tee -a configure.log
186	exit 1
187	LDSHARED=${LDSHARED-"$cc -shared"}
188	LDSHAREDLIBC=""
189	EXE='.exe' ;;
190	QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
191	# (alain.bonnefoy@icbt.com)
192	LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
193	HP-UX*)
194	LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
195	case `(uname -m \|\| echo unknown) 2>/dev/null` in
196	ia64)
197	shared_ext='.so'
198	SHAREDLIB='libz.so' ;;
199	*)
200	shared_ext='.sl'
201	SHAREDLIB='libz.sl' ;;
202	esac ;;
203	Darwin* \| darwin*)
204	shared_ext='.dylib'
205	SHAREDLIB=libz$shared_ext
206	SHAREDLIBV=libz.$VER$shared_ext
207	SHAREDLIBM=libz.$VER1$shared_ext
208	LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
209	AR="libtool"
210	ARFLAGS="-o" ;;
211	*) LDSHARED=${LDSHARED-"$cc -shared"} ;;
212	esac
213	else
214	# find system name and corresponding cc options
215	CC=${CC-cc}
216	gcc=0
217	echo ... using $CC >> configure.log
218	if test -z "$uname"; then
219	uname=`(uname -sr \|\| echo unknown) 2>/dev/null`
220	fi
221	case "$uname" in
222	HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
223	CFLAGS=${CFLAGS-"-O"}
224	# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
225	LDSHARED=${LDSHARED-"ld -b"}
226	case `(uname -m \|\| echo unknown) 2>/dev/null` in
227	ia64)
228	shared_ext='.so'
229	SHAREDLIB='libz.so' ;;
230	*)
231	shared_ext='.sl'
232	SHAREDLIB='libz.sl' ;;
233	esac ;;
234	IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
235	CFLAGS=${CFLAGS-"-ansi -O2"}
236	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
237	OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
238	CFLAGS=${CFLAGS-"-O -std1"}
239	LDFLAGS="${LDFLAGS} -Wl,-rpath,."
240	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
241	OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
242	CFLAGS=${CFLAGS-"-O -std1"}
243	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
244	QNX*) SFLAGS=${CFLAGS-"-4 -O"}
245	CFLAGS=${CFLAGS-"-4 -O"}
246	LDSHARED=${LDSHARED-"cc"}
247	RANLIB=${RANLIB-"true"}
248	AR="cc"
249	ARFLAGS="-A" ;;
250	SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
251	CFLAGS=${CFLAGS-"-O3"}
252	LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
253	SunOS\ 5* \| solaris*)
254	LDSHARED=${LDSHARED-"cc -G"}
255	case `(uname -m \|\| echo unknown) 2>/dev/null` in
256	i86*)
257	SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."}
258	CFLAGS=${CFLAGS-"-xpentium -fast"} ;;
259	*)
260	SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."}
261	CFLAGS=${CFLAGS-"-fast -xcg92"} ;;
262	esac ;;
263	SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
264	CFLAGS=${CFLAGS-"-O2"}
265	LDSHARED=${LDSHARED-"ld"} ;;
266	SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
267	CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
268	LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
269	UNIX_System_V\ 4.2.0)
270	SFLAGS=${CFLAGS-"-KPIC -O"}
271	CFLAGS=${CFLAGS-"-O"}
272	LDSHARED=${LDSHARED-"cc -G"} ;;
273	UNIX_SV\ 4.2MP)
274	SFLAGS=${CFLAGS-"-Kconform_pic -O"}
275	CFLAGS=${CFLAGS-"-O"}
276	LDSHARED=${LDSHARED-"cc -G"} ;;
277	OpenUNIX\ 5)
278	SFLAGS=${CFLAGS-"-KPIC -O"}
279	CFLAGS=${CFLAGS-"-O"}
280	LDSHARED=${LDSHARED-"cc -G"} ;;
281	AIX*) # Courtesy of dbakker@arrayasolutions.com
282	SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
283	CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
284	LDSHARED=${LDSHARED-"xlc -G"} ;;
285	# send working options for other systems to zlib@gzip.org
286	*) SFLAGS=${CFLAGS-"-O"}
287	CFLAGS=${CFLAGS-"-O"}
288	LDSHARED=${LDSHARED-"cc -shared"} ;;
289	esac
290	fi
291
292	SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
293	SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
294	SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
295
296	echo >> configure.log
297
298	if test $shared -eq 1; then
299	echo Checking for shared library support... \| tee -a configure.log
300	# we must test in two steps (cc then ld), required at least on SunOS 4.x
301	if try $CC -w -c $SFLAGS $test.c &&
302	try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
303	echo Building shared library $SHAREDLIBV with $CC. \| tee -a configure.log
304	elif test -z "$old_cc" -a -z "$old_cflags"; then
305	echo No shared library support. \| tee -a configure.log
306	shared=0;
307	else
308	echo 'No shared library support; try without defining CC and CFLAGS' \| tee -a configure.log
309	shared=0;
310	fi
311	fi
312	if test $shared -eq 0; then
313	LDSHARED="$CC"
314	ALL="static"
315	TEST="all teststatic"
316	SHAREDLIB=""
317	SHAREDLIBV=""
318	SHAREDLIBM=""
319	echo Building static library $STATICLIB version $VER with $CC. \| tee -a configure.log
320	else
321	ALL="static shared"
322	TEST="all teststatic testshared"
323	fi
324
325	CPP=${CPP-"$CC -E"}
326	case $CFLAGS in
327	ASMV)
328	echo >> configure.log
329	show "$NM $test.o \| grep _hello"
330	if test "`$NM $test.o \| grep _hello \| tee -a configure.log`" = ""; then
331	CPP="$CPP -DNO_UNDERLINE"
332	echo Checking for underline in external names... No. \| tee -a configure.log
333	else
334	echo Checking for underline in external names... Yes. \| tee -a configure.log
335	fi ;;
336	esac
337
338	echo >> configure.log
339
340	cat > $test.c <<EOF
341	#include <sys/types.h>
342	off64_t dummy = 0;
343	EOF
344	if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
345	CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
346	SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
347	ALL="${ALL} all64"
348	TEST="${TEST} test64"
349	echo "Checking for off64_t... Yes." \| tee -a configure.log
350	echo "Checking for fseeko... Yes." \| tee -a configure.log
351	else
352	echo "Checking for off64_t... No." \| tee -a configure.log
353	echo >> configure.log
354	cat > $test.c <<EOF
355	#include <stdio.h>
356	int main(void) {
357	fseeko(NULL, 0, 0);
358	return 0;
359	}
360	EOF
361	if try $CC $CFLAGS -o $test $test.c; then
362	echo "Checking for fseeko... Yes." \| tee -a configure.log
363	else
364	CFLAGS="${CFLAGS} -DNO_FSEEKO"
365	SFLAGS="${SFLAGS} -DNO_FSEEKO"
366	echo "Checking for fseeko... No." \| tee -a configure.log
367	fi
368	fi
369
370	cp -p zconf.h.in zconf.h
371
372	echo >> configure.log
373
374	cat > $test.c <<EOF
375	#include <unistd.h>
376	int main() { return 0; }
377	EOF
378	if try $CC -c $CFLAGS $test.c; then
379	sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H$.*$ may be/ 1\1 was/" > zconf.temp.h
380	mv zconf.temp.h zconf.h
381	echo "Checking for unistd.h... Yes." \| tee -a configure.log
382	else
383	echo "Checking for unistd.h... No." \| tee -a configure.log
384	fi
385
386	echo >> configure.log
387
388	cat > $test.c <<EOF
389	#include <stdarg.h>
390	int main() { return 0; }
391	EOF
392	if try $CC -c $CFLAGS $test.c; then
393	sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H$.*$ may be/ 1\1 was/" > zconf.temp.h
394	mv zconf.temp.h zconf.h
395	echo "Checking for stdarg.h... Yes." \| tee -a configure.log
396	else
397	echo "Checking for stdarg.h... No." \| tee -a configure.log
398	fi
399
400	if test $zprefix -eq 1; then
401	sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX$.*$ may be/ 1\1 was/" > zconf.temp.h
402	mv zconf.temp.h zconf.h
403	echo >> configure.log
404	echo "Using z_ prefix on all symbols." \| tee -a configure.log
405	fi
406
407	if test $solo -eq 1; then
408	sed '/#define ZCONF_H/a\
409	#define Z_SOLO
410
411	' < zconf.h > zconf.temp.h
412	mv zconf.temp.h zconf.h
413	OBJC='$(OBJZ)'
414	PIC_OBJC='$(PIC_OBJZ)'
415	fi
416
417	if test $cover -eq 1; then
418	CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
419	fi
420
421	echo >> configure.log
422
423	cat > $test.c <<EOF
424	#include <stdio.h>
425	#include <stdarg.h>
426	#include "zconf.h"
427	int main()
428	{
429	#ifndef STDC
430	choke me
431	#endif
432	return 0;
433	}
434	EOF
435
436	if try $CC -c $CFLAGS $test.c; then
437	echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." \| tee -a configure.log
438
439	echo >> configure.log
440	cat > $test.c <<EOF
441	#include <stdio.h>
442	#include <stdarg.h>
443	int mytest(const char *fmt, ...)
444	{
445	char buf[20];
446	va_list ap;
447	va_start(ap, fmt);
448	vsnprintf(buf, sizeof(buf), fmt, ap);
449	va_end(ap);
450	return 0;
451	}
452	int main()
453	{
454	return (mytest("Hello%d\n", 1));
455	}
456	EOF
457	if try $CC $CFLAGS -o $test $test.c; then
458	echo "Checking for vsnprintf() in stdio.h... Yes." \| tee -a configure.log
459
460	echo >> configure.log
461	cat >$test.c <<EOF
462	#include <stdio.h>
463	#include <stdarg.h>
464	int mytest(const char *fmt, ...)
465	{
466	int n;
467	char buf[20];
468	va_list ap;
469	va_start(ap, fmt);
470	n = vsnprintf(buf, sizeof(buf), fmt, ap);
471	va_end(ap);
472	return n;
473	}
474	int main()
475	{
476	return (mytest("Hello%d\n", 1));
477	}
478	EOF
479
480	if try $CC -c $CFLAGS $test.c; then
481	echo "Checking for return value of vsnprintf()... Yes." \| tee -a configure.log
482	else
483	CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
484	SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
485	echo "Checking for return value of vsnprintf()... No." \| tee -a configure.log
486	echo " WARNING: apparently vsnprintf() does not return a value. zlib" \| tee -a configure.log
487	echo " can build but will be open to possible string-format security" \| tee -a configure.log
488	echo " vulnerabilities." \| tee -a configure.log
489	fi
490	else
491	CFLAGS="$CFLAGS -DNO_vsnprintf"
492	SFLAGS="$SFLAGS -DNO_vsnprintf"
493	echo "Checking for vsnprintf() in stdio.h... No." \| tee -a configure.log
494	echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" \| tee -a configure.log
495	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
496	echo " vulnerabilities." \| tee -a configure.log
497
498	echo >> configure.log
499	cat >$test.c <<EOF
500	#include <stdio.h>
501	#include <stdarg.h>
502	int mytest(const char *fmt, ...)
503	{
504	int n;
505	char buf[20];
506	va_list ap;
507	va_start(ap, fmt);
508	n = vsprintf(buf, fmt, ap);
509	va_end(ap);
510	return n;
511	}
512	int main()
513	{
514	return (mytest("Hello%d\n", 1));
515	}
516	EOF
517
518	if try $CC -c $CFLAGS $test.c; then
519	echo "Checking for return value of vsprintf()... Yes." \| tee -a configure.log
520	else
521	CFLAGS="$CFLAGS -DHAS_vsprintf_void"
522	SFLAGS="$SFLAGS -DHAS_vsprintf_void"
523	echo "Checking for return value of vsprintf()... No." \| tee -a configure.log
524	echo " WARNING: apparently vsprintf() does not return a value. zlib" \| tee -a configure.log
525	echo " can build but will be open to possible string-format security" \| tee -a configure.log
526	echo " vulnerabilities." \| tee -a configure.log
527	fi
528	fi
529	else
530	echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." \| tee -a configure.log
531
532	echo >> configure.log
533	cat >$test.c <<EOF
534	#include <stdio.h>
535	int mytest()
536	{
537	char buf[20];
538	snprintf(buf, sizeof(buf), "%s", "foo");
539	return 0;
540	}
541	int main()
542	{
543	return (mytest());
544	}
545	EOF
546
547	if try $CC $CFLAGS -o $test $test.c; then
548	echo "Checking for snprintf() in stdio.h... Yes." \| tee -a configure.log
549
550	echo >> configure.log
551	cat >$test.c <<EOF
552	#include <stdio.h>
553	int mytest()
554	{
555	char buf[20];
556	return snprintf(buf, sizeof(buf), "%s", "foo");
557	}
558	int main()
559	{
560	return (mytest());
561	}
562	EOF
563
564	if try $CC -c $CFLAGS $test.c; then
565	echo "Checking for return value of snprintf()... Yes." \| tee -a configure.log
566	else
567	CFLAGS="$CFLAGS -DHAS_snprintf_void"
568	SFLAGS="$SFLAGS -DHAS_snprintf_void"
569	echo "Checking for return value of snprintf()... No." \| tee -a configure.log
570	echo " WARNING: apparently snprintf() does not return a value. zlib" \| tee -a configure.log
571	echo " can build but will be open to possible string-format security" \| tee -a configure.log
572	echo " vulnerabilities." \| tee -a configure.log
573	fi
574	else
575	CFLAGS="$CFLAGS -DNO_snprintf"
576	SFLAGS="$SFLAGS -DNO_snprintf"
577	echo "Checking for snprintf() in stdio.h... No." \| tee -a configure.log
578	echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" \| tee -a configure.log
579	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
580	echo " vulnerabilities." \| tee -a configure.log
581
582	echo >> configure.log
583	cat >$test.c <<EOF
584	#include <stdio.h>
585	int mytest()
586	{
587	char buf[20];
588	return sprintf(buf, "%s", "foo");
589	}
590	int main()
591	{
592	return (mytest());
593	}
594	EOF
595
596	if try $CC -c $CFLAGS $test.c; then
597	echo "Checking for return value of sprintf()... Yes." \| tee -a configure.log
598	else
599	CFLAGS="$CFLAGS -DHAS_sprintf_void"
600	SFLAGS="$SFLAGS -DHAS_sprintf_void"
601	echo "Checking for return value of sprintf()... No." \| tee -a configure.log
602	echo " WARNING: apparently sprintf() does not return a value. zlib" \| tee -a configure.log
603	echo " can build but will be open to possible string-format security" \| tee -a configure.log
604	echo " vulnerabilities." \| tee -a configure.log
605	fi
606	fi
607	fi
608
609	if test "$gcc" -eq 1; then
610	echo >> configure.log
611	cat > $test.c <<EOF
612	#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
613	# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
614	#else
615	# define ZLIB_INTERNAL
616	#endif
617	int ZLIB_INTERNAL foo;
618	int main()
619	{
620	return 0;
621	}
622	EOF
623	if try $CC -c $CFLAGS $test.c; then
624	echo "Checking for attribute(visibility) support... Yes." \| tee -a configure.log
625	else
626	CFLAGS="$CFLAGS -DNO_VIZ"
627	SFLAGS="$SFLAGS -DNO_VIZ"
628	echo "Checking for attribute(visibility) support... No." \| tee -a configure.log
629	fi
630	fi
631
632	rm -f $test.[co] $test $test$shared_ext $test.gcno
633
634	# show the results in the log
635	echo >> configure.log
636	echo ALL = $ALL >> configure.log
637	echo AR = $AR >> configure.log
638	echo ARFLAGS = $ARFLAGS >> configure.log
639	echo CC = $CC >> configure.log
640	echo CFLAGS = $CFLAGS >> configure.log
641	echo CPP = $CPP >> configure.log
642	echo EXE = $EXE >> configure.log
643	echo LDCONFIG = $LDCONFIG >> configure.log
644	echo LDFLAGS = $LDFLAGS >> configure.log
645	echo LDSHARED = $LDSHARED >> configure.log
646	echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
647	echo OBJC = $OBJC >> configure.log
648	echo PIC_OBJC = $PIC_OBJC >> configure.log
649	echo RANLIB = $RANLIB >> configure.log
650	echo SFLAGS = $SFLAGS >> configure.log
651	echo SHAREDLIB = $SHAREDLIB >> configure.log
652	echo SHAREDLIBM = $SHAREDLIBM >> configure.log
653	echo SHAREDLIBV = $SHAREDLIBV >> configure.log
654	echo STATICLIB = $STATICLIB >> configure.log
655	echo TEST = $TEST >> configure.log
656	echo VER = $VER >> configure.log
657	echo exec_prefix = $exec_prefix >> configure.log
658	echo includedir = $includedir >> configure.log
659	echo libdir = $libdir >> configure.log
660	echo mandir = $mandir >> configure.log
661	echo prefix = $prefix >> configure.log
662	echo sharedlibdir = $sharedlibdir >> configure.log
663	echo uname = $uname >> configure.log
664	echo -------------------- >> configure.log
665	echo >> configure.log
666	echo >> configure.log
667
668	# udpate Makefile
669	sed < Makefile.in "
670	/^CC =/s#=.#=$CC#
671	/^CFLAGS =/s#=.#=$CFLAGS#
672	/^SFLAGS =/s#=.#=$SFLAGS#
673	/^LDFLAGS =/s#=.#=$LDFLAGS#
674	/^LDSHARED =/s#=.#=$LDSHARED#
675	/^CPP =/s#=.#=$CPP#
676	/^STATICLIB =/s#=.#=$STATICLIB#
677	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
678	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
679	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
680	/^AR =/s#=.#=$AR#
681	/^ARFLAGS =/s#=.#=$ARFLAGS#
682	/^RANLIB =/s#=.#=$RANLIB#
683	/^LDCONFIG =/s#=.#=$LDCONFIG#
684	/^LDSHAREDLIBC =/s#=.#=$LDSHAREDLIBC#
685	/^EXE =/s#=.#=$EXE#
686	/^prefix =/s#=.#=$prefix#
687	/^exec_prefix =/s#=.#=$exec_prefix#
688	/^libdir =/s#=.#=$libdir#
689	/^sharedlibdir =/s#=.#=$sharedlibdir#
690	/^includedir =/s#=.#=$includedir#
691	/^mandir =/s#=.#=$mandir#
692	/^OBJC =/s#=.#= $OBJC#
693	/^PIC_OBJC =/s#=.#= $PIC_OBJC#
694	/^all: /s#:.#: $ALL#
695	/^test: /s#:.#: $TEST#
696	" > Makefile
697
698	sed < zlib.pc.in "
699	/^CC =/s#=.#=$CC#
700	/^CFLAGS =/s#=.#=$CFLAGS#
701	/^CPP =/s#=.#=$CPP#
702	/^LDSHARED =/s#=.#=$LDSHARED#
703	/^STATICLIB =/s#=.#=$STATICLIB#
704	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
705	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
706	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
707	/^AR =/s#=.#=$AR#
708	/^ARFLAGS =/s#=.#=$ARFLAGS#
709	/^RANLIB =/s#=.#=$RANLIB#
710	/^EXE =/s#=.#=$EXE#
711	/^prefix =/s#=.#=$prefix#
712	/^exec_prefix =/s#=.#=$exec_prefix#
713	/^libdir =/s#=.#=$libdir#
714	/^sharedlibdir =/s#=.#=$sharedlibdir#
715	/^includedir =/s#=.#=$includedir#
716	/^mandir =/s#=.#=$mandir#
717	/^LDFLAGS =/s#=.#=$LDFLAGS#
718	" \| sed -e "
719	s/\@VERSION\@/$VER/g;
720	" > zlib.pc

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source: vbox/trunk/src/libs/zlib-1.2.6/configure@ 49482

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