configure@ 93889

Last change on this file since 93889 was 76163, checked in by vboxsync, 6 years ago
zlib-1.2.11 initial commit
Property svn:eol-style set to `LF` Property svn:executable set to ``*
File size: 27.6 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-'${prefix}/share/man'}
80	shared_ext='.so'
81	shared=1
82	solo=0
83	cover=0
84	zprefix=0
85	zconst=0
86	build64=0
87	gcc=0
88	warn=0
89	debug=0
90	old_cc="$CC"
91	old_cflags="$CFLAGS"
92	OBJC='$(OBJZ) $(OBJG)'
93	PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
94
95	# leave this script, optionally in a bad way
96	leave()
97	{
98	if test "$*" != "0"; then
99	echo "** $0 aborting." \| tee -a configure.log
100	fi
101	rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version
102	echo -------------------- >> configure.log
103	echo >> configure.log
104	echo >> configure.log
105	exit $1
106	}
107
108	# process command line options
109	while test $# -ge 1
110	do
111	case "$1" in
112	-h* \| --help)
113	echo 'usage:' \| tee -a configure.log
114	echo ' configure [--const] [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' \| tee -a configure.log
115	echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' \| tee -a configure.log
116	echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' \| tee -a configure.log
117	exit 0 ;;
118	-p= \| --prefix=) prefix=`echo $1 \| sed 's/.=//'`; shift ;;
119	-e= \| --eprefix=) exec_prefix=`echo $1 \| sed 's/.=//'`; shift ;;
120	-l= \| --libdir=) libdir=`echo $1 \| sed 's/.=//'`; shift ;;
121	--sharedlibdir=) sharedlibdir=`echo $1 \| sed 's/.=//'`; shift ;;
122	-i= \| --includedir=) includedir=`echo $1 \| sed 's/.=//'`;shift ;;
123	-u= \| --uname=) uname=`echo $1 \| sed 's/.=//'`;shift ;;
124	-p* \| --prefix) prefix="$2"; shift; shift ;;
125	-e* \| --eprefix) exec_prefix="$2"; shift; shift ;;
126	-l* \| --libdir) libdir="$2"; shift; shift ;;
127	-i* \| --includedir) includedir="$2"; shift; shift ;;
128	-s* \| --shared \| --enable-shared) shared=1; shift ;;
129	-t \| --static) shared=0; shift ;;
130	--solo) solo=1; shift ;;
131	--cover) cover=1; shift ;;
132	-z* \| --zprefix) zprefix=1; shift ;;
133	-6* \| --64) build64=1; shift ;;
134	-a= \| --archs=) ARCHS=`echo $1 \| sed 's/.=//'`; shift ;;
135	--sysconfdir=*) echo "ignored option: --sysconfdir" \| tee -a configure.log; shift ;;
136	--localstatedir=*) echo "ignored option: --localstatedir" \| tee -a configure.log; shift ;;
137	-c* \| --const) zconst=1; shift ;;
138	-w* \| --warn) warn=1; shift ;;
139	-d* \| --debug) debug=1; shift ;;
140	*)
141	echo "unknown option: $1" \| tee -a configure.log
142	echo "$0 --help for help" \| tee -a configure.log
143	leave 1;;
144	esac
145	done
146
147	# temporary file name
148	test=ztest$$
149
150	# put arguments in log, also put test file in log if used in arguments
151	show()
152	{
153	case "$*" in
154	$test.c)
155	echo === $test.c === >> configure.log
156	cat $test.c >> configure.log
157	echo === >> configure.log;;
158	esac
159	echo $* >> configure.log
160	}
161
162	# check for gcc vs. cc and set compile and link flags based on the system identified by uname
163	cat > $test.c <<EOF
164	extern int getchar();
165	int hello() {return getchar();}
166	EOF
167
168	test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... \| tee -a configure.log
169	cc=${CC-${CROSS_PREFIX}gcc}
170	cflags=${CFLAGS-"-O3"}
171	# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
172	case "$cc" in
173	gcc) gcc=1 ;;
174	clang) gcc=1 ;;
175	esac
176	case `$cc -v 2>&1` in
177	gcc) gcc=1 ;;
178	clang) gcc=1 ;;
179	esac
180
181	show $cc -c $test.c
182	if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
183	echo ... using gcc >> configure.log
184	CC="$cc"
185	CFLAGS="${CFLAGS--O3}"
186	SFLAGS="${CFLAGS--O3} -fPIC"
187	if test "$ARCHS"; then
188	CFLAGS="${CFLAGS} ${ARCHS}"
189	LDFLAGS="${LDFLAGS} ${ARCHS}"
190	fi
191	if test $build64 -eq 1; then
192	CFLAGS="${CFLAGS} -m64"
193	SFLAGS="${SFLAGS} -m64"
194	fi
195	if test "$warn" -eq 1; then
196	if test "$zconst" -eq 1; then
197	CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST"
198	else
199	CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
200	fi
201	fi
202	if test $debug -eq 1; then
203	CFLAGS="${CFLAGS} -DZLIB_DEBUG"
204	SFLAGS="${SFLAGS} -DZLIB_DEBUG"
205	fi
206	if test -z "$uname"; then
207	uname=`(uname -s \|\| echo unknown) 2>/dev/null`
208	fi
209	case "$uname" in
210	Linux* \| linux* \| GNU \| GNU/* \| solaris*)
211	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
212	BSD \| bsd* \| DragonFly)
213	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
214	LDCONFIG="ldconfig -m" ;;
215	CYGWIN* \| Cygwin* \| cygwin* \| OS/2*)
216	EXE='.exe' ;;
217	MINGW* \| mingw*)
218	# temporary bypass
219	rm -f $test.[co] $test $test$shared_ext
220	echo "Please use win32/Makefile.gcc instead." \| tee -a configure.log
221	leave 1
222	LDSHARED=${LDSHARED-"$cc -shared"}
223	LDSHAREDLIBC=""
224	EXE='.exe' ;;
225	QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
226	# (alain.bonnefoy@icbt.com)
227	LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
228	HP-UX*)
229	LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
230	case `(uname -m \|\| echo unknown) 2>/dev/null` in
231	ia64)
232	shared_ext='.so'
233	SHAREDLIB='libz.so' ;;
234	*)
235	shared_ext='.sl'
236	SHAREDLIB='libz.sl' ;;
237	esac ;;
238	Darwin* \| darwin*)
239	shared_ext='.dylib'
240	SHAREDLIB=libz$shared_ext
241	SHAREDLIBV=libz.$VER$shared_ext
242	SHAREDLIBM=libz.$VER1$shared_ext
243	LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
244	if libtool -V 2>&1 \| grep Apple > /dev/null; then
245	AR="libtool"
246	else
247	AR="/usr/bin/libtool"
248	fi
249	ARFLAGS="-o" ;;
250	*) LDSHARED=${LDSHARED-"$cc -shared"} ;;
251	esac
252	else
253	# find system name and corresponding cc options
254	CC=${CC-cc}
255	gcc=0
256	echo ... using $CC >> configure.log
257	if test -z "$uname"; then
258	uname=`(uname -sr \|\| echo unknown) 2>/dev/null`
259	fi
260	case "$uname" in
261	HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
262	CFLAGS=${CFLAGS-"-O"}
263	# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
264	LDSHARED=${LDSHARED-"ld -b"}
265	case `(uname -m \|\| echo unknown) 2>/dev/null` in
266	ia64)
267	shared_ext='.so'
268	SHAREDLIB='libz.so' ;;
269	*)
270	shared_ext='.sl'
271	SHAREDLIB='libz.sl' ;;
272	esac ;;
273	IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
274	CFLAGS=${CFLAGS-"-ansi -O2"}
275	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
276	OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
277	CFLAGS=${CFLAGS-"-O -std1"}
278	LDFLAGS="${LDFLAGS} -Wl,-rpath,."
279	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
280	OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
281	CFLAGS=${CFLAGS-"-O -std1"}
282	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
283	QNX*) SFLAGS=${CFLAGS-"-4 -O"}
284	CFLAGS=${CFLAGS-"-4 -O"}
285	LDSHARED=${LDSHARED-"cc"}
286	RANLIB=${RANLIB-"true"}
287	AR="cc"
288	ARFLAGS="-A" ;;
289	SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
290	CFLAGS=${CFLAGS-"-O3"}
291	LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
292	SunOS\ 5* \| solaris*)
293	LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"}
294	SFLAGS=${CFLAGS-"-fast -KPIC"}
295	CFLAGS=${CFLAGS-"-fast"}
296	if test $build64 -eq 1; then
297	# old versions of SunPRO/Workshop/Studio don't support -m64,
298	# but newer ones do. Check for it.
299	flag64=`$CC -flags \| egrep -- '^-m64'`
300	if test x"$flag64" != x"" ; then
301	CFLAGS="${CFLAGS} -m64"
302	SFLAGS="${SFLAGS} -m64"
303	else
304	case `(uname -m \|\| echo unknown) 2>/dev/null` in
305	i86*)
306	SFLAGS="$SFLAGS -xarch=amd64"
307	CFLAGS="$CFLAGS -xarch=amd64" ;;
308	*)
309	SFLAGS="$SFLAGS -xarch=v9"
310	CFLAGS="$CFLAGS -xarch=v9" ;;
311	esac
312	fi
313	fi
314	if test -n "$ZINC"; then
315	ZINC='-I- -I. -I$(SRCDIR)'
316	fi
317	;;
318	SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
319	CFLAGS=${CFLAGS-"-O2"}
320	LDSHARED=${LDSHARED-"ld"} ;;
321	SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
322	CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
323	LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
324	UNIX_System_V\ 4.2.0)
325	SFLAGS=${CFLAGS-"-KPIC -O"}
326	CFLAGS=${CFLAGS-"-O"}
327	LDSHARED=${LDSHARED-"cc -G"} ;;
328	UNIX_SV\ 4.2MP)
329	SFLAGS=${CFLAGS-"-Kconform_pic -O"}
330	CFLAGS=${CFLAGS-"-O"}
331	LDSHARED=${LDSHARED-"cc -G"} ;;
332	OpenUNIX\ 5)
333	SFLAGS=${CFLAGS-"-KPIC -O"}
334	CFLAGS=${CFLAGS-"-O"}
335	LDSHARED=${LDSHARED-"cc -G"} ;;
336	AIX*) # Courtesy of dbakker@arrayasolutions.com
337	SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
338	CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
339	LDSHARED=${LDSHARED-"xlc -G"} ;;
340	# send working options for other systems to zlib@gzip.org
341	*) SFLAGS=${CFLAGS-"-O"}
342	CFLAGS=${CFLAGS-"-O"}
343	LDSHARED=${LDSHARED-"cc -shared"} ;;
344	esac
345	fi
346
347	# destination names for shared library if not defined above
348	SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
349	SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
350	SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
351
352	echo >> configure.log
353
354	# define functions for testing compiler and library characteristics and logging the results
355
356	cat > $test.c <<EOF
357	#error error
358	EOF
359	if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
360	try()
361	{
362	show $*
363	test "`( $* ) 2>&1 \| tee -a configure.log`" = ""
364	}
365	echo - using any output from compiler to indicate an error >> configure.log
366	else
367	try()
368	{
369	show $*
370	( $* ) >> configure.log 2>&1
371	ret=$?
372	if test $ret -ne 0; then
373	echo "(exit code "$ret")" >> configure.log
374	fi
375	return $ret
376	}
377	fi
378
379	tryboth()
380	{
381	show $*
382	got=`( $* ) 2>&1`
383	ret=$?
384	printf %s "$got" >> configure.log
385	if test $ret -ne 0; then
386	return $ret
387	fi
388	test "$got" = ""
389	}
390
391	cat > $test.c << EOF
392	int foo() { return 0; }
393	EOF
394	echo "Checking for obsessive-compulsive compiler options..." >> configure.log
395	if try $CC -c $CFLAGS $test.c; then
396	:
397	else
398	echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." \| tee -a configure.log
399	leave 1
400	fi
401
402	echo >> configure.log
403
404	# see if shared library build supported
405	cat > $test.c <<EOF
406	extern int getchar();
407	int hello() {return getchar();}
408	EOF
409	if test $shared -eq 1; then
410	echo Checking for shared library support... \| tee -a configure.log
411	# we must test in two steps (cc then ld), required at least on SunOS 4.x
412	if try $CC -w -c $SFLAGS $test.c &&
413	try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
414	echo Building shared library $SHAREDLIBV with $CC. \| tee -a configure.log
415	elif test -z "$old_cc" -a -z "$old_cflags"; then
416	echo No shared library support. \| tee -a configure.log
417	shared=0;
418	else
419	echo 'No shared library support; try without defining CC and CFLAGS' \| tee -a configure.log
420	shared=0;
421	fi
422	fi
423	if test $shared -eq 0; then
424	LDSHARED="$CC"
425	ALL="static"
426	TEST="all teststatic"
427	SHAREDLIB=""
428	SHAREDLIBV=""
429	SHAREDLIBM=""
430	echo Building static library $STATICLIB version $VER with $CC. \| tee -a configure.log
431	else
432	ALL="static shared"
433	TEST="all teststatic testshared"
434	fi
435
436	# check for underscores in external names for use by assembler code
437	CPP=${CPP-"$CC -E"}
438	case $CFLAGS in
439	ASMV)
440	echo >> configure.log
441	show "$NM $test.o \| grep _hello"
442	if test "`$NM $test.o \| grep _hello \| tee -a configure.log`" = ""; then
443	CPP="$CPP -DNO_UNDERLINE"
444	echo Checking for underline in external names... No. \| tee -a configure.log
445	else
446	echo Checking for underline in external names... Yes. \| tee -a configure.log
447	fi ;;
448	esac
449
450	echo >> configure.log
451
452	# check for size_t
453	cat > $test.c <<EOF
454	#include <stdio.h>
455	#include <stdlib.h>
456	size_t dummy = 0;
457	EOF
458	if try $CC -c $CFLAGS $test.c; then
459	echo "Checking for size_t... Yes." \| tee -a configure.log
460	need_sizet=0
461	else
462	echo "Checking for size_t... No." \| tee -a configure.log
463	need_sizet=1
464	fi
465
466	echo >> configure.log
467
468	# find the size_t integer type, if needed
469	if test $need_sizet -eq 1; then
470	cat > $test.c <<EOF
471	long long dummy = 0;
472	EOF
473	if try $CC -c $CFLAGS $test.c; then
474	echo "Checking for long long... Yes." \| tee -a configure.log
475	cat > $test.c <<EOF
476	#include <stdio.h>
477	int main(void) {
478	if (sizeof(void *) <= sizeof(int)) puts("int");
479	else if (sizeof(void *) <= sizeof(long)) puts("long");
480	else puts("z_longlong");
481	return 0;
482	}
483	EOF
484	else
485	echo "Checking for long long... No." \| 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 puts("long");
491	return 0;
492	}
493	EOF
494	fi
495	if try $CC $CFLAGS -o $test $test.c; then
496	sizet=`./$test`
497	echo "Checking for a pointer-size integer type..." $sizet"." \| tee -a configure.log
498	else
499	echo "Failed to find a pointer-size integer type." \| tee -a configure.log
500	leave 1
501	fi
502	fi
503
504	if test $need_sizet -eq 1; then
505	CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}"
506	SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}"
507	fi
508
509	echo >> configure.log
510
511	# check for large file support, and if none, check for fseeko()
512	cat > $test.c <<EOF
513	#include <sys/types.h>
514	off64_t dummy = 0;
515	EOF
516	if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
517	CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
518	SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
519	ALL="${ALL} all64"
520	TEST="${TEST} test64"
521	echo "Checking for off64_t... Yes." \| tee -a configure.log
522	echo "Checking for fseeko... Yes." \| tee -a configure.log
523	else
524	echo "Checking for off64_t... No." \| tee -a configure.log
525	echo >> configure.log
526	cat > $test.c <<EOF
527	#include <stdio.h>
528	int main(void) {
529	fseeko(NULL, 0, 0);
530	return 0;
531	}
532	EOF
533	if try $CC $CFLAGS -o $test $test.c; then
534	echo "Checking for fseeko... Yes." \| tee -a configure.log
535	else
536	CFLAGS="${CFLAGS} -DNO_FSEEKO"
537	SFLAGS="${SFLAGS} -DNO_FSEEKO"
538	echo "Checking for fseeko... No." \| tee -a configure.log
539	fi
540	fi
541
542	echo >> configure.log
543
544	# check for strerror() for use by gz* functions
545	cat > $test.c <<EOF
546	#include <string.h>
547	#include <errno.h>
548	int main() { return strlen(strerror(errno)); }
549	EOF
550	if try $CC $CFLAGS -o $test $test.c; then
551	echo "Checking for strerror... Yes." \| tee -a configure.log
552	else
553	CFLAGS="${CFLAGS} -DNO_STRERROR"
554	SFLAGS="${SFLAGS} -DNO_STRERROR"
555	echo "Checking for strerror... No." \| tee -a configure.log
556	fi
557
558	# copy clean zconf.h for subsequent edits
559	cp -p ${SRCDIR}zconf.h.in zconf.h
560
561	echo >> configure.log
562
563	# check for unistd.h and save result in zconf.h
564	cat > $test.c <<EOF
565	#include <unistd.h>
566	int main() { return 0; }
567	EOF
568	if try $CC -c $CFLAGS $test.c; then
569	sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H$.*$ may be/ 1\1 was/" > zconf.temp.h
570	mv zconf.temp.h zconf.h
571	echo "Checking for unistd.h... Yes." \| tee -a configure.log
572	else
573	echo "Checking for unistd.h... No." \| tee -a configure.log
574	fi
575
576	echo >> configure.log
577
578	# check for stdarg.h and save result in zconf.h
579	cat > $test.c <<EOF
580	#include <stdarg.h>
581	int main() { return 0; }
582	EOF
583	if try $CC -c $CFLAGS $test.c; then
584	sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H$.*$ may be/ 1\1 was/" > zconf.temp.h
585	mv zconf.temp.h zconf.h
586	echo "Checking for stdarg.h... Yes." \| tee -a configure.log
587	else
588	echo "Checking for stdarg.h... No." \| tee -a configure.log
589	fi
590
591	# if the z_ prefix was requested, save that in zconf.h
592	if test $zprefix -eq 1; then
593	sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX$.*$ may be/ 1\1 was/" > zconf.temp.h
594	mv zconf.temp.h zconf.h
595	echo >> configure.log
596	echo "Using z_ prefix on all symbols." \| tee -a configure.log
597	fi
598
599	# if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists
600	if test $solo -eq 1; then
601	sed '/#define ZCONF_H/a\
602	#define Z_SOLO
603
604	' < zconf.h > zconf.temp.h
605	mv zconf.temp.h zconf.h
606	OBJC='$(OBJZ)'
607	PIC_OBJC='$(PIC_OBJZ)'
608	fi
609
610	# if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X
611	if test $cover -eq 1; then
612	CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
613	if test -n "$GCC_CLASSIC"; then
614	CC=$GCC_CLASSIC
615	fi
616	fi
617
618	echo >> configure.log
619
620	# conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions
621	# (using stdarg or not), with or without "n" (proving size of buffer), and with or without a
622	# return value. The most secure result is vsnprintf() with a return value. snprintf() with a
623	# return value is secure as well, but then gzprintf() will be limited to 20 arguments.
624	cat > $test.c <<EOF
625	#include <stdio.h>
626	#include <stdarg.h>
627	#include "zconf.h"
628	int main()
629	{
630	#ifndef STDC
631	choke me
632	#endif
633	return 0;
634	}
635	EOF
636	if try $CC -c $CFLAGS $test.c; then
637	echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." \| tee -a configure.log
638
639	echo >> configure.log
640	cat > $test.c <<EOF
641	#include <stdio.h>
642	#include <stdarg.h>
643	int mytest(const char *fmt, ...)
644	{
645	char buf[20];
646	va_list ap;
647	va_start(ap, fmt);
648	vsnprintf(buf, sizeof(buf), fmt, ap);
649	va_end(ap);
650	return 0;
651	}
652	int main()
653	{
654	return (mytest("Hello%d\n", 1));
655	}
656	EOF
657	if try $CC $CFLAGS -o $test $test.c; then
658	echo "Checking for vsnprintf() in stdio.h... Yes." \| tee -a configure.log
659
660	echo >> configure.log
661	cat >$test.c <<EOF
662	#include <stdio.h>
663	#include <stdarg.h>
664	int mytest(const char *fmt, ...)
665	{
666	int n;
667	char buf[20];
668	va_list ap;
669	va_start(ap, fmt);
670	n = vsnprintf(buf, sizeof(buf), fmt, ap);
671	va_end(ap);
672	return n;
673	}
674	int main()
675	{
676	return (mytest("Hello%d\n", 1));
677	}
678	EOF
679
680	if try $CC -c $CFLAGS $test.c; then
681	echo "Checking for return value of vsnprintf()... Yes." \| tee -a configure.log
682	else
683	CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
684	SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
685	echo "Checking for return value of vsnprintf()... No." \| tee -a configure.log
686	echo " WARNING: apparently vsnprintf() does not return a value. zlib" \| tee -a configure.log
687	echo " can build but will be open to possible string-format security" \| tee -a configure.log
688	echo " vulnerabilities." \| tee -a configure.log
689	fi
690	else
691	CFLAGS="$CFLAGS -DNO_vsnprintf"
692	SFLAGS="$SFLAGS -DNO_vsnprintf"
693	echo "Checking for vsnprintf() in stdio.h... No." \| tee -a configure.log
694	echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" \| tee -a configure.log
695	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
696	echo " vulnerabilities." \| tee -a configure.log
697
698	echo >> configure.log
699	cat >$test.c <<EOF
700	#include <stdio.h>
701	#include <stdarg.h>
702	int mytest(const char *fmt, ...)
703	{
704	int n;
705	char buf[20];
706	va_list ap;
707	va_start(ap, fmt);
708	n = vsprintf(buf, fmt, ap);
709	va_end(ap);
710	return n;
711	}
712	int main()
713	{
714	return (mytest("Hello%d\n", 1));
715	}
716	EOF
717
718	if try $CC -c $CFLAGS $test.c; then
719	echo "Checking for return value of vsprintf()... Yes." \| tee -a configure.log
720	else
721	CFLAGS="$CFLAGS -DHAS_vsprintf_void"
722	SFLAGS="$SFLAGS -DHAS_vsprintf_void"
723	echo "Checking for return value of vsprintf()... No." \| tee -a configure.log
724	echo " WARNING: apparently vsprintf() does not return a value. zlib" \| tee -a configure.log
725	echo " can build but will be open to possible string-format security" \| tee -a configure.log
726	echo " vulnerabilities." \| tee -a configure.log
727	fi
728	fi
729	else
730	echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." \| tee -a configure.log
731
732	echo >> configure.log
733	cat >$test.c <<EOF
734	#include <stdio.h>
735	int mytest()
736	{
737	char buf[20];
738	snprintf(buf, sizeof(buf), "%s", "foo");
739	return 0;
740	}
741	int main()
742	{
743	return (mytest());
744	}
745	EOF
746
747	if try $CC $CFLAGS -o $test $test.c; then
748	echo "Checking for snprintf() in stdio.h... Yes." \| tee -a configure.log
749
750	echo >> configure.log
751	cat >$test.c <<EOF
752	#include <stdio.h>
753	int mytest()
754	{
755	char buf[20];
756	return snprintf(buf, sizeof(buf), "%s", "foo");
757	}
758	int main()
759	{
760	return (mytest());
761	}
762	EOF
763
764	if try $CC -c $CFLAGS $test.c; then
765	echo "Checking for return value of snprintf()... Yes." \| tee -a configure.log
766	else
767	CFLAGS="$CFLAGS -DHAS_snprintf_void"
768	SFLAGS="$SFLAGS -DHAS_snprintf_void"
769	echo "Checking for return value of snprintf()... No." \| tee -a configure.log
770	echo " WARNING: apparently snprintf() does not return a value. zlib" \| tee -a configure.log
771	echo " can build but will be open to possible string-format security" \| tee -a configure.log
772	echo " vulnerabilities." \| tee -a configure.log
773	fi
774	else
775	CFLAGS="$CFLAGS -DNO_snprintf"
776	SFLAGS="$SFLAGS -DNO_snprintf"
777	echo "Checking for snprintf() in stdio.h... No." \| tee -a configure.log
778	echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" \| tee -a configure.log
779	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
780	echo " vulnerabilities." \| tee -a configure.log
781
782	echo >> configure.log
783	cat >$test.c <<EOF
784	#include <stdio.h>
785	int mytest()
786	{
787	char buf[20];
788	return sprintf(buf, "%s", "foo");
789	}
790	int main()
791	{
792	return (mytest());
793	}
794	EOF
795
796	if try $CC -c $CFLAGS $test.c; then
797	echo "Checking for return value of sprintf()... Yes." \| tee -a configure.log
798	else
799	CFLAGS="$CFLAGS -DHAS_sprintf_void"
800	SFLAGS="$SFLAGS -DHAS_sprintf_void"
801	echo "Checking for return value of sprintf()... No." \| tee -a configure.log
802	echo " WARNING: apparently sprintf() does not return a value. zlib" \| tee -a configure.log
803	echo " can build but will be open to possible string-format security" \| tee -a configure.log
804	echo " vulnerabilities." \| tee -a configure.log
805	fi
806	fi
807	fi
808
809	# see if we can hide zlib internal symbols that are linked between separate source files
810	if test "$gcc" -eq 1; then
811	echo >> configure.log
812	cat > $test.c <<EOF
813	#define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
814	int ZLIB_INTERNAL foo;
815	int main()
816	{
817	return 0;
818	}
819	EOF
820	if tryboth $CC -c $CFLAGS $test.c; then
821	CFLAGS="$CFLAGS -DHAVE_HIDDEN"
822	SFLAGS="$SFLAGS -DHAVE_HIDDEN"
823	echo "Checking for attribute(visibility) support... Yes." \| tee -a configure.log
824	else
825	echo "Checking for attribute(visibility) support... No." \| tee -a configure.log
826	fi
827	fi
828
829	# show the results in the log
830	echo >> configure.log
831	echo ALL = $ALL >> configure.log
832	echo AR = $AR >> configure.log
833	echo ARFLAGS = $ARFLAGS >> configure.log
834	echo CC = $CC >> configure.log
835	echo CFLAGS = $CFLAGS >> configure.log
836	echo CPP = $CPP >> configure.log
837	echo EXE = $EXE >> configure.log
838	echo LDCONFIG = $LDCONFIG >> configure.log
839	echo LDFLAGS = $LDFLAGS >> configure.log
840	echo LDSHARED = $LDSHARED >> configure.log
841	echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
842	echo OBJC = $OBJC >> configure.log
843	echo PIC_OBJC = $PIC_OBJC >> configure.log
844	echo RANLIB = $RANLIB >> configure.log
845	echo SFLAGS = $SFLAGS >> configure.log
846	echo SHAREDLIB = $SHAREDLIB >> configure.log
847	echo SHAREDLIBM = $SHAREDLIBM >> configure.log
848	echo SHAREDLIBV = $SHAREDLIBV >> configure.log
849	echo STATICLIB = $STATICLIB >> configure.log
850	echo TEST = $TEST >> configure.log
851	echo VER = $VER >> configure.log
852	echo Z_U4 = $Z_U4 >> configure.log
853	echo SRCDIR = $SRCDIR >> configure.log
854	echo exec_prefix = $exec_prefix >> configure.log
855	echo includedir = $includedir >> configure.log
856	echo libdir = $libdir >> configure.log
857	echo mandir = $mandir >> configure.log
858	echo prefix = $prefix >> configure.log
859	echo sharedlibdir = $sharedlibdir >> configure.log
860	echo uname = $uname >> configure.log
861
862	# udpate Makefile with the configure results
863	sed < ${SRCDIR}Makefile.in "
864	/^CC =/s#=.#=$CC#
865	/^CFLAGS =/s#=.#=$CFLAGS#
866	/^SFLAGS =/s#=.#=$SFLAGS#
867	/^LDFLAGS =/s#=.#=$LDFLAGS#
868	/^LDSHARED =/s#=.#=$LDSHARED#
869	/^CPP =/s#=.#=$CPP#
870	/^STATICLIB =/s#=.#=$STATICLIB#
871	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
872	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
873	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
874	/^AR =/s#=.#=$AR#
875	/^ARFLAGS =/s#=.#=$ARFLAGS#
876	/^RANLIB =/s#=.#=$RANLIB#
877	/^LDCONFIG =/s#=.#=$LDCONFIG#
878	/^LDSHAREDLIBC =/s#=.#=$LDSHAREDLIBC#
879	/^EXE =/s#=.#=$EXE#
880	/^SRCDIR =/s#=.#=$SRCDIR#
881	/^ZINC =/s#=.#=$ZINC#
882	/^ZINCOUT =/s#=.#=$ZINCOUT#
883	/^prefix =/s#=.#=$prefix#
884	/^exec_prefix =/s#=.#=$exec_prefix#
885	/^libdir =/s#=.#=$libdir#
886	/^sharedlibdir =/s#=.#=$sharedlibdir#
887	/^includedir =/s#=.#=$includedir#
888	/^mandir =/s#=.#=$mandir#
889	/^OBJC =/s#=.#= $OBJC#
890	/^PIC_OBJC =/s#=.#= $PIC_OBJC#
891	/^all: /s#:.#: $ALL#
892	/^test: /s#:.#: $TEST#
893	" > Makefile
894
895	# create zlib.pc with the configure results
896	sed < ${SRCDIR}zlib.pc.in "
897	/^CC =/s#=.#=$CC#
898	/^CFLAGS =/s#=.#=$CFLAGS#
899	/^CPP =/s#=.#=$CPP#
900	/^LDSHARED =/s#=.#=$LDSHARED#
901	/^STATICLIB =/s#=.#=$STATICLIB#
902	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
903	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
904	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
905	/^AR =/s#=.#=$AR#
906	/^ARFLAGS =/s#=.#=$ARFLAGS#
907	/^RANLIB =/s#=.#=$RANLIB#
908	/^EXE =/s#=.#=$EXE#
909	/^prefix =/s#=.#=$prefix#
910	/^exec_prefix =/s#=.#=$exec_prefix#
911	/^libdir =/s#=.#=$libdir#
912	/^sharedlibdir =/s#=.#=$sharedlibdir#
913	/^includedir =/s#=.#=$includedir#
914	/^mandir =/s#=.#=$mandir#
915	/^LDFLAGS =/s#=.#=$LDFLAGS#
916	" \| sed -e "
917	s/\@VERSION\@/$VER/g;
918	" > zlib.pc
919
920	# done
921	leave 0

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source: vbox/trunk/src/libs/zlib-1.2.11/configure@ 93889

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