configure

Last change on this file was 108382, checked in by vboxsync, 2 months ago
zlib-1.3.1: Applied and adjusted our zlib changes to 1.3.1. jiraref:VBP-1328
Property svn:eol-style set to `native`
File size: 27.5 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 $SRCDIR = "."; then
24	ZINC=""
25	ZINCOUT="-I."
26	SRCDIR=""
27	else
28	ZINC='-I. -include zconf.h'
29	ZINCOUT='-I. -I$(SRCDIR)'
30	SRCDIR="$SRCDIR/"
31	fi
32
33	# set command prefix for cross-compilation
34	if [ -n "${CHOST}" ]; then
35	uname=${CHOST}
36	mname=${CHOST}
37	CROSS_PREFIX="${CHOST}-"
38	else
39	mname=`(uname -a \|\| echo unknown) 2>/dev/null`
40	fi
41
42	# destination name for static library
43	STATICLIB=libz.a
44
45	# extract zlib version numbers from zlib.h
46	VER=`sed -n -e '/VERSION "/s/."$.$".*/\1/p' < ${SRCDIR}zlib.h`
47	VER3=`echo ${VER}\|sed -n -e 's/$[0-9]\{1,\}\(\\.[0-9]\{1,\}$\{1,2\}\).*/\1/p'`
48	VER1=`echo ${VER}\|sed -n -e 's/$[0-9]\{1,\}$\\..*/\1/p'`
49
50	# establish commands for library building
51	if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
52	AR=${AR-"${CROSS_PREFIX}ar"}
53	test -n "${CROSS_PREFIX}" && echo Using ${AR} \| tee -a configure.log
54	else
55	AR=${AR-"ar"}
56	test -n "${CROSS_PREFIX}" && echo Using ${AR} \| tee -a configure.log
57	fi
58	ARFLAGS=${ARFLAGS-"rc"}
59	if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
60	RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
61	test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} \| tee -a configure.log
62	else
63	RANLIB=${RANLIB-"ranlib"}
64	fi
65	if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null \|\| test $? -lt 126; then
66	NM=${NM-"${CROSS_PREFIX}nm"}
67	test -n "${CROSS_PREFIX}" && echo Using ${NM} \| tee -a configure.log
68	else
69	NM=${NM-"nm"}
70	fi
71
72	# set defaults before processing command line options
73	LDCONFIG=${LDCONFIG-"ldconfig"}
74	LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
75	ARCHS=
76	prefix=${prefix-/usr/local}
77	exec_prefix=${exec_prefix-'${prefix}'}
78	libdir=${libdir-'${exec_prefix}/lib'}
79	sharedlibdir=${sharedlibdir-'${libdir}'}
80	includedir=${includedir-'${prefix}/include'}
81	mandir=${mandir-'${prefix}/share/man'}
82	shared_ext='.so'
83	shared=1
84	solo=0
85	cover=0
86	zprefix=0
87	zconst=0
88	build64=0
89	gcc=0
90	warn=0
91	debug=0
92	address=0
93	memory=0
94	old_cc="$CC"
95	old_cflags="$CFLAGS"
96	OBJC='$(OBJZ) $(OBJG)'
97	PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
98
99	# leave this script, optionally in a bad way
100	leave()
101	{
102	if test "$*" != "0"; then
103	echo "** $0 aborting." \| tee -a configure.log
104	fi
105	rm -rf $test.[co] $test $test$shared_ext $test.gcno $test.dSYM ./--version
106	echo -------------------- >> configure.log
107	echo >> configure.log
108	echo >> configure.log
109	exit $1
110	}
111
112	# process command line options
113	while test $# -ge 1
114	do
115	case "$1" in
116	-h* \| --help)
117	echo 'usage:' \| tee -a configure.log
118	echo ' configure [--const] [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' \| tee -a configure.log
119	echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' \| tee -a configure.log
120	echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' \| tee -a configure.log
121	exit 0 ;;
122	-p= \| --prefix=) prefix=`echo $1 \| sed 's/.=//'`; shift ;;
123	-e= \| --eprefix=) exec_prefix=`echo $1 \| sed 's/.=//'`; shift ;;
124	-l= \| --libdir=) libdir=`echo $1 \| sed 's/.=//'`; shift ;;
125	--sharedlibdir=) sharedlibdir=`echo $1 \| sed 's/.=//'`; shift ;;
126	-i= \| --includedir=) includedir=`echo $1 \| sed 's/.=//'`;shift ;;
127	-u= \| --uname=) uname=`echo $1 \| sed 's/.=//'`;shift ;;
128	-p* \| --prefix) prefix="$2"; shift; shift ;;
129	-e* \| --eprefix) exec_prefix="$2"; shift; shift ;;
130	-l* \| --libdir) libdir="$2"; shift; shift ;;
131	-i* \| --includedir) includedir="$2"; shift; shift ;;
132	-s* \| --shared \| --enable-shared) shared=1; shift ;;
133	-t \| --static) shared=0; shift ;;
134	--solo) solo=1; shift ;;
135	--cover) cover=1; shift ;;
136	-z* \| --zprefix) zprefix=1; shift ;;
137	-6* \| --64) build64=1; shift ;;
138	-a= \| --archs=) ARCHS=`echo $1 \| sed 's/.=//'`; shift ;;
139	--sysconfdir=*) echo "ignored option: --sysconfdir" \| tee -a configure.log; shift ;;
140	--localstatedir=*) echo "ignored option: --localstatedir" \| tee -a configure.log; shift ;;
141	-c* \| --const) zconst=1; shift ;;
142	-w* \| --warn) warn=1; shift ;;
143	-d* \| --debug) debug=1; shift ;;
144	--sanitize) address=1; shift ;;
145	--address) address=1; shift ;;
146	--memory) memory=1; shift ;;
147	*)
148	echo "unknown option: $1" \| tee -a configure.log
149	echo "$0 --help for help" \| tee -a configure.log
150	leave 1;;
151	esac
152	done
153
154	# temporary file name
155	test=ztest$$
156
157	# put arguments in log, also put test file in log if used in arguments
158	show()
159	{
160	case "$*" in
161	$test.c)
162	echo === $test.c === >> configure.log
163	cat $test.c >> configure.log
164	echo === >> configure.log;;
165	esac
166	echo $* >> configure.log
167	}
168
169	# check for gcc vs. cc and set compile and link flags based on the system identified by uname
170	cat > $test.c <<EOF
171	extern int getchar();
172	int hello() {return getchar();}
173	EOF
174
175	if test -z "$CC"; then
176	echo Checking for ${CROSS_PREFIX}gcc... \| tee -a configure.log
177	if ${CROSS_PREFIX}gcc -v >/dev/null 2>&1; then
178	cc=${CROSS_PREFIX}gcc
179	else
180	cc=${CROSS_PREFIX}cc
181	fi
182	else
183	cc=${CC}
184	fi
185
186	case "$cc" in
187	gcc) gcc=1 ;;
188	clang) gcc=1 ;;
189	esac
190	case `$cc -v 2>&1` in
191	gcc) gcc=1 ;;
192	clang) gcc=1 ;;
193	esac
194
195	show $cc -c $test.c
196	if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
197	echo ... using gcc >> configure.log
198	CC="$cc"
199	CFLAGS="${CFLAGS--O3}"
200	SFLAGS="${CFLAGS--O3} -fPIC"
201	if test "$ARCHS"; then
202	CFLAGS="${CFLAGS} ${ARCHS}"
203	LDFLAGS="${LDFLAGS} ${ARCHS}"
204	fi
205	if test $build64 -eq 1; then
206	CFLAGS="${CFLAGS} -m64"
207	SFLAGS="${SFLAGS} -m64"
208	fi
209	if test "$warn" -eq 1; then
210	if test "$zconst" -eq 1; then
211	CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -DZLIB_CONST"
212	else
213	CFLAGS="${CFLAGS} -Wall -Wextra"
214	fi
215	fi
216	if test $address -eq 1; then
217	CFLAGS="${CFLAGS} -g -fsanitize=address -fno-omit-frame-pointer"
218	fi
219	if test $memory -eq 1; then
220	CFLAGS="${CFLAGS} -g -fsanitize=memory -fno-omit-frame-pointer"
221	fi
222	if test $debug -eq 1; then
223	CFLAGS="${CFLAGS} -DZLIB_DEBUG"
224	SFLAGS="${SFLAGS} -DZLIB_DEBUG"
225	fi
226	if test -z "$uname"; then
227	uname=`(uname -s \|\| echo unknown) 2>/dev/null`
228	fi
229	case "$uname" in
230	Linux* \| linux* \| -linux \| GNU \| GNU/* \| solaris*)
231	case "$mname" in
232	sparc)
233	LDFLAGS="${LDFLAGS} -Wl,--no-warn-rwx-segments" ;;
234	esac
235	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
236	BSD \| bsd* \| DragonFly)
237	LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
238	LDCONFIG="ldconfig -m" ;;
239	CYGWIN* \| Cygwin* \| cygwin* \| -cygwin \| OS/2*)
240	EXE='.exe' ;;
241	MINGW* \| mingw* \| -mingw)
242	rm -f $test.[co] $test $test$shared_ext
243	echo "If this doesn't work for you, try win32/Makefile.gcc." \| tee -a configure.log
244	LDSHARED=${LDSHARED-"$cc -shared"}
245	LDSHAREDLIBC=""
246	EXE='.exe' ;;
247	QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
248	# ([email protected])
249	LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
250	HP-UX*)
251	LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
252	case `(uname -m \|\| echo unknown) 2>/dev/null` in
253	ia64)
254	shared_ext='.so'
255	SHAREDLIB='libz.so' ;;
256	*)
257	shared_ext='.sl'
258	SHAREDLIB='libz.sl' ;;
259	esac ;;
260	AIX*)
261	LDFLAGS="${LDFLAGS} -Wl,-brtl" ;;
262	Darwin* \| darwin* \| -darwin)
263	shared_ext='.dylib'
264	SHAREDLIB=libz$shared_ext
265	SHAREDLIBV=libz.$VER$shared_ext
266	SHAREDLIBM=libz.$VER1$shared_ext
267	LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
268	if "${CROSS_PREFIX}libtool" -V 2>&1 \| grep Apple > /dev/null; then
269	AR="${CROSS_PREFIX}libtool"
270	elif libtool -V 2>&1 \| grep Apple > /dev/null; then
271	AR="libtool"
272	else
273	AR="/usr/bin/libtool"
274	fi
275	ARFLAGS="-o" ;;
276	*)
277	LDSHARED=${LDSHARED-"$cc -shared"} ;;
278	esac
279	else
280	# find system name and corresponding cc options
281	CC=${CC-cc}
282	gcc=0
283	echo ... using $CC >> configure.log
284	if test -z "$uname"; then
285	uname=`(uname -sr \|\| echo unknown) 2>/dev/null`
286	fi
287	case "$uname" in
288	HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
289	CFLAGS=${CFLAGS-"-O"}
290	# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
291	LDSHARED=${LDSHARED-"ld -b"}
292	case `(uname -m \|\| echo unknown) 2>/dev/null` in
293	ia64)
294	shared_ext='.so'
295	SHAREDLIB='libz.so' ;;
296	*)
297	shared_ext='.sl'
298	SHAREDLIB='libz.sl' ;;
299	esac ;;
300	IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
301	CFLAGS=${CFLAGS-"-ansi -O2"}
302	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
303	OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
304	CFLAGS=${CFLAGS-"-O -std1"}
305	LDFLAGS="${LDFLAGS} -Wl,-rpath,."
306	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
307	OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
308	CFLAGS=${CFLAGS-"-O -std1"}
309	LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
310	QNX*) SFLAGS=${CFLAGS-"-4 -O"}
311	CFLAGS=${CFLAGS-"-4 -O"}
312	LDSHARED=${LDSHARED-"cc"}
313	RANLIB=${RANLIB-"true"}
314	AR="cc"
315	ARFLAGS="-A" ;;
316	SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
317	CFLAGS=${CFLAGS-"-O3"}
318	LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
319	SunOS\ 5* \| solaris*)
320	LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"}
321	SFLAGS=${CFLAGS-"-fast -KPIC"}
322	CFLAGS=${CFLAGS-"-fast"}
323	if test $build64 -eq 1; then
324	# old versions of SunPRO/Workshop/Studio don't support -m64,
325	# but newer ones do. Check for it.
326	flag64=`$CC -flags \| egrep -- '^-m64'`
327	if test x"$flag64" != x"" ; then
328	CFLAGS="${CFLAGS} -m64"
329	SFLAGS="${SFLAGS} -m64"
330	else
331	case `(uname -m \|\| echo unknown) 2>/dev/null` in
332	i86*)
333	SFLAGS="$SFLAGS -xarch=amd64"
334	CFLAGS="$CFLAGS -xarch=amd64" ;;
335	*)
336	SFLAGS="$SFLAGS -xarch=v9"
337	CFLAGS="$CFLAGS -xarch=v9" ;;
338	esac
339	fi
340	fi
341	if test -n "$ZINC"; then
342	ZINC='-I- -I. -I$(SRCDIR)'
343	fi
344	;;
345	SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
346	CFLAGS=${CFLAGS-"-O2"}
347	LDSHARED=${LDSHARED-"ld"} ;;
348	SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
349	CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
350	LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
351	UNIX_System_V\ 4.2.0)
352	SFLAGS=${CFLAGS-"-KPIC -O"}
353	CFLAGS=${CFLAGS-"-O"}
354	LDSHARED=${LDSHARED-"cc -G"} ;;
355	UNIX_SV\ 4.2MP)
356	SFLAGS=${CFLAGS-"-Kconform_pic -O"}
357	CFLAGS=${CFLAGS-"-O"}
358	LDSHARED=${LDSHARED-"cc -G"} ;;
359	OpenUNIX\ 5)
360	SFLAGS=${CFLAGS-"-KPIC -O"}
361	CFLAGS=${CFLAGS-"-O"}
362	LDSHARED=${LDSHARED-"cc -G"} ;;
363	AIX*) # Courtesy of [email protected]
364	SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
365	CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
366	LDSHARED=${LDSHARED-"xlc -G"} ;;
367	# send working options for other systems to [email protected]
368	*) SFLAGS=${CFLAGS-"-O"}
369	CFLAGS=${CFLAGS-"-O"}
370	LDSHARED=${LDSHARED-"cc -shared"} ;;
371	esac
372	fi
373
374	# destination names for shared library if not defined above
375	SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
376	SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
377	SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
378
379	echo >> configure.log
380
381	# define functions for testing compiler and library characteristics and logging the results
382
383	cat > $test.c <<EOF
384	#error error
385	EOF
386	if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
387	try()
388	{
389	show $*
390	test "`( $* ) 2>&1 \| tee -a configure.log`" = ""
391	}
392	echo - using any output from compiler to indicate an error >> configure.log
393	else
394	try()
395	{
396	show $*
397	got=`( $* ) 2>&1`
398	ret=$?
399	if test "$got" != ""; then
400	printf "%s\n" "$got" >> configure.log
401	fi
402	if test $ret -ne 0; then
403	echo "(exit code "$ret")" >> configure.log
404	fi
405	return $ret
406	}
407	fi
408
409	tryboth()
410	{
411	show $*
412	got=`( $* ) 2>&1`
413	ret=$?
414	if test "$got" != ""; then
415	printf "%s\n" "$got" >> configure.log
416	fi
417	if test $ret -ne 0; then
418	echo "(exit code "$ret")" >> configure.log
419	return $ret
420	fi
421	test "$got" = ""
422	}
423
424	cat > $test.c << EOF
425	int foo() { return 0; }
426	EOF
427	echo "Checking for obsessive-compulsive compiler options..." >> configure.log
428	if try $CC -c $CFLAGS $test.c; then
429	:
430	else
431	echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." \| tee -a configure.log
432	leave 1
433	fi
434
435	echo >> configure.log
436
437	# see if shared library build supported
438	cat > $test.c <<EOF
439	extern int getchar();
440	int hello() {return getchar();}
441	EOF
442	if test $shared -eq 1; then
443	echo Checking for shared library support... \| tee -a configure.log
444	# we must test in two steps (cc then ld), required at least on SunOS 4.x
445	if try $CC -c $SFLAGS $test.c &&
446	try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
447	echo Building shared library $SHAREDLIBV with $CC. \| tee -a configure.log
448	elif test -z "$old_cc" -a -z "$old_cflags"; then
449	echo No shared library support. \| tee -a configure.log
450	shared=0;
451	else
452	echo 'No shared library support; try without defining CC and CFLAGS' \| tee -a configure.log
453	shared=0;
454	fi
455	fi
456	if test $shared -eq 0; then
457	LDSHARED="$CC"
458	ALL="static"
459	TEST="all teststatic"
460	SHAREDLIB=""
461	SHAREDLIBV=""
462	SHAREDLIBM=""
463	echo Building static library $STATICLIB version $VER with $CC. \| tee -a configure.log
464	else
465	ALL="static shared"
466	TEST="all teststatic testshared"
467	fi
468
469	echo >> configure.log
470
471	# check for size_t
472	cat > $test.c <<EOF
473	#include <stdio.h>
474	#include <stdlib.h>
475	size_t dummy = 0;
476	EOF
477	if try $CC -c $CFLAGS $test.c; then
478	echo "Checking for size_t... Yes." \| tee -a configure.log
479	else
480	echo "Checking for size_t... No." \| tee -a configure.log
481	# find a size_t integer type
482	# check for long long
483	cat > $test.c << EOF
484	long long dummy = 0;
485	EOF
486	if try $CC -c $CFLAGS $test.c; then
487	echo "Checking for long long... Yes." \| tee -a configure.log
488	cat > $test.c <<EOF
489	#include <stdio.h>
490	int main(void) {
491	if (sizeof(void *) <= sizeof(int)) puts("int");
492	else if (sizeof(void *) <= sizeof(long)) puts("long");
493	else puts("z_longlong");
494	return 0;
495	}
496	EOF
497	else
498	echo "Checking for long long... No." \| tee -a configure.log
499	cat > $test.c <<EOF
500	#include <stdio.h>
501	int main(void) {
502	if (sizeof(void *) <= sizeof(int)) puts("int");
503	else puts("long");
504	return 0;
505	}
506	EOF
507	fi
508	if try $CC $CFLAGS -o $test $test.c; then
509	sizet=`./$test`
510	echo "Checking for a pointer-size integer type..." $sizet"." \| tee -a configure.log
511	CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}"
512	SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}"
513	else
514	echo "Checking for a pointer-size integer type... not found." \| tee -a configure.log
515	fi
516	fi
517
518	echo >> configure.log
519
520	# check for large file support, and if none, check for fseeko()
521	cat > $test.c <<EOF
522	#include <sys/types.h>
523	off64_t dummy = 0;
524	EOF
525	if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
526	CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
527	SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
528	ALL="${ALL} all64"
529	TEST="${TEST} test64"
530	echo "Checking for off64_t... Yes." \| tee -a configure.log
531	echo "Checking for fseeko... Yes." \| tee -a configure.log
532	else
533	echo "Checking for off64_t... No." \| tee -a configure.log
534	echo >> configure.log
535	cat > $test.c <<EOF
536	#include <stdio.h>
537	int main(void) {
538	fseeko(NULL, 0, 0);
539	return 0;
540	}
541	EOF
542	if try $CC $CFLAGS -o $test $test.c; then
543	echo "Checking for fseeko... Yes." \| tee -a configure.log
544	else
545	CFLAGS="${CFLAGS} -DNO_FSEEKO"
546	SFLAGS="${SFLAGS} -DNO_FSEEKO"
547	echo "Checking for fseeko... No." \| tee -a configure.log
548	fi
549	fi
550
551	echo >> configure.log
552
553	# check for strerror() for use by gz* functions
554	cat > $test.c <<EOF
555	#include <string.h>
556	#include <errno.h>
557	int main() { return strlen(strerror(errno)); }
558	EOF
559	if try $CC $CFLAGS -o $test $test.c; then
560	echo "Checking for strerror... Yes." \| tee -a configure.log
561	else
562	CFLAGS="${CFLAGS} -DNO_STRERROR"
563	SFLAGS="${SFLAGS} -DNO_STRERROR"
564	echo "Checking for strerror... No." \| tee -a configure.log
565	fi
566
567	# copy clean zconf.h for subsequent edits
568	cp -p ${SRCDIR}zconf.h.in zconf.h
569
570	echo >> configure.log
571
572	# check for unistd.h and save result in zconf.h
573	cat > $test.c <<EOF
574	#include <unistd.h>
575	int main() { return 0; }
576	EOF
577	if try $CC -c $CFLAGS $test.c; then
578	sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H$.*$ may be/ 1\1 was/" > zconf.temp.h
579	mv zconf.temp.h zconf.h
580	echo "Checking for unistd.h... Yes." \| tee -a configure.log
581	else
582	echo "Checking for unistd.h... No." \| tee -a configure.log
583	fi
584
585	echo >> configure.log
586
587	# check for stdarg.h and save result in zconf.h
588	cat > $test.c <<EOF
589	#include <stdarg.h>
590	int main() { return 0; }
591	EOF
592	if try $CC -c $CFLAGS $test.c; then
593	sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H$.*$ may be/ 1\1 was/" > zconf.temp.h
594	mv zconf.temp.h zconf.h
595	echo "Checking for stdarg.h... Yes." \| tee -a configure.log
596	else
597	echo "Checking for stdarg.h... No." \| tee -a configure.log
598	fi
599
600	# if the z_ prefix was requested, save that in zconf.h
601	if test $zprefix -eq 1; then
602	sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX$.*$ may be/ 1\1 was/" > zconf.temp.h
603	mv zconf.temp.h zconf.h
604	echo >> configure.log
605	echo "Using z_ prefix on all symbols." \| tee -a configure.log
606	fi
607
608	# if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists
609	if test $solo -eq 1; then
610	sed '/#define ZCONF_H/a\
611	#define Z_SOLO
612
613	' < zconf.h > zconf.temp.h
614	mv zconf.temp.h zconf.h
615	OBJC='$(OBJZ)'
616	PIC_OBJC='$(PIC_OBJZ)'
617	fi
618
619	# if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X
620	if test $cover -eq 1; then
621	CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
622	if test -n "$GCC_CLASSIC"; then
623	CC=$GCC_CLASSIC
624	fi
625	fi
626
627	echo >> configure.log
628
629	# conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions
630	# (using stdarg or not), with or without "n" (proving size of buffer), and with or without a
631	# return value. The most secure result is vsnprintf() with a return value. snprintf() with a
632	# return value is secure as well, but then gzprintf() will be limited to 20 arguments.
633	cat > $test.c <<EOF
634	#include <stdio.h>
635	#include <stdarg.h>
636	#include "zconf.h"
637	int main()
638	{
639	#ifndef STDC
640	choke me
641	#endif
642	return 0;
643	}
644	EOF
645	if try $CC -c $CFLAGS $test.c; then
646	echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." \| tee -a configure.log
647
648	echo >> configure.log
649	cat > $test.c <<EOF
650	#include <stdio.h>
651	#include <stdarg.h>
652	int mytest(const char *fmt, ...)
653	{
654	char buf[20];
655	va_list ap;
656	va_start(ap, fmt);
657	vsnprintf(buf, sizeof(buf), fmt, ap);
658	va_end(ap);
659	return 0;
660	}
661	int main()
662	{
663	return (mytest("Hello%d\n", 1));
664	}
665	EOF
666	if try $CC $CFLAGS -o $test $test.c; then
667	echo "Checking for vsnprintf() in stdio.h... Yes." \| tee -a configure.log
668
669	echo >> configure.log
670	cat >$test.c <<EOF
671	#include <stdio.h>
672	#include <stdarg.h>
673	int mytest(const char *fmt, ...)
674	{
675	int n;
676	char buf[20];
677	va_list ap;
678	va_start(ap, fmt);
679	n = vsnprintf(buf, sizeof(buf), fmt, ap);
680	va_end(ap);
681	return n;
682	}
683	int main()
684	{
685	return (mytest("Hello%d\n", 1));
686	}
687	EOF
688
689	if try $CC -c $CFLAGS $test.c; then
690	echo "Checking for return value of vsnprintf()... Yes." \| tee -a configure.log
691	else
692	CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
693	SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
694	echo "Checking for return value of vsnprintf()... No." \| tee -a configure.log
695	echo " WARNING: apparently vsnprintf() does not return a value. zlib" \| tee -a configure.log
696	echo " can build but will be open to possible string-format security" \| tee -a configure.log
697	echo " vulnerabilities." \| tee -a configure.log
698	fi
699	else
700	CFLAGS="$CFLAGS -DNO_vsnprintf"
701	SFLAGS="$SFLAGS -DNO_vsnprintf"
702	echo "Checking for vsnprintf() in stdio.h... No." \| tee -a configure.log
703	echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" \| tee -a configure.log
704	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
705	echo " vulnerabilities." \| tee -a configure.log
706
707	echo >> configure.log
708	cat >$test.c <<EOF
709	#include <stdio.h>
710	#include <stdarg.h>
711	int mytest(const char *fmt, ...)
712	{
713	int n;
714	char buf[20];
715	va_list ap;
716	va_start(ap, fmt);
717	n = vsprintf(buf, fmt, ap);
718	va_end(ap);
719	return n;
720	}
721	int main()
722	{
723	return (mytest("Hello%d\n", 1));
724	}
725	EOF
726
727	if try $CC -c $CFLAGS $test.c; then
728	echo "Checking for return value of vsprintf()... Yes." \| tee -a configure.log
729	else
730	CFLAGS="$CFLAGS -DHAS_vsprintf_void"
731	SFLAGS="$SFLAGS -DHAS_vsprintf_void"
732	echo "Checking for return value of vsprintf()... No." \| tee -a configure.log
733	echo " WARNING: apparently vsprintf() does not return a value. zlib" \| tee -a configure.log
734	echo " can build but will be open to possible string-format security" \| tee -a configure.log
735	echo " vulnerabilities." \| tee -a configure.log
736	fi
737	fi
738	else
739	echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." \| tee -a configure.log
740
741	echo >> configure.log
742	cat >$test.c <<EOF
743	#include <stdio.h>
744	int mytest()
745	{
746	char buf[20];
747	snprintf(buf, sizeof(buf), "%s", "foo");
748	return 0;
749	}
750	int main()
751	{
752	return (mytest());
753	}
754	EOF
755
756	if try $CC $CFLAGS -o $test $test.c; then
757	echo "Checking for snprintf() in stdio.h... Yes." \| tee -a configure.log
758
759	echo >> configure.log
760	cat >$test.c <<EOF
761	#include <stdio.h>
762	int mytest()
763	{
764	char buf[20];
765	return snprintf(buf, sizeof(buf), "%s", "foo");
766	}
767	int main()
768	{
769	return (mytest());
770	}
771	EOF
772
773	if try $CC -c $CFLAGS $test.c; then
774	echo "Checking for return value of snprintf()... Yes." \| tee -a configure.log
775	else
776	CFLAGS="$CFLAGS -DHAS_snprintf_void"
777	SFLAGS="$SFLAGS -DHAS_snprintf_void"
778	echo "Checking for return value of snprintf()... No." \| tee -a configure.log
779	echo " WARNING: apparently snprintf() does not return a value. zlib" \| tee -a configure.log
780	echo " can build but will be open to possible string-format security" \| tee -a configure.log
781	echo " vulnerabilities." \| tee -a configure.log
782	fi
783	else
784	CFLAGS="$CFLAGS -DNO_snprintf"
785	SFLAGS="$SFLAGS -DNO_snprintf"
786	echo "Checking for snprintf() in stdio.h... No." \| tee -a configure.log
787	echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" \| tee -a configure.log
788	echo " can build but will be open to possible buffer-overflow security" \| tee -a configure.log
789	echo " vulnerabilities." \| tee -a configure.log
790
791	echo >> configure.log
792	cat >$test.c <<EOF
793	#include <stdio.h>
794	int mytest()
795	{
796	char buf[20];
797	return sprintf(buf, "%s", "foo");
798	}
799	int main()
800	{
801	return (mytest());
802	}
803	EOF
804
805	if try $CC -c $CFLAGS $test.c; then
806	echo "Checking for return value of sprintf()... Yes." \| tee -a configure.log
807	else
808	CFLAGS="$CFLAGS -DHAS_sprintf_void"
809	SFLAGS="$SFLAGS -DHAS_sprintf_void"
810	echo "Checking for return value of sprintf()... No." \| tee -a configure.log
811	echo " WARNING: apparently sprintf() does not return a value. zlib" \| tee -a configure.log
812	echo " can build but will be open to possible string-format security" \| tee -a configure.log
813	echo " vulnerabilities." \| tee -a configure.log
814	fi
815	fi
816	fi
817
818	# see if we can hide zlib internal symbols that are linked between separate source files
819	if test "$gcc" -eq 1; then
820	echo >> configure.log
821	cat > $test.c <<EOF
822	#define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
823	int ZLIB_INTERNAL foo;
824	int main()
825	{
826	return 0;
827	}
828	EOF
829	if tryboth $CC -c $CFLAGS $test.c; then
830	CFLAGS="$CFLAGS -DHAVE_HIDDEN"
831	SFLAGS="$SFLAGS -DHAVE_HIDDEN"
832	echo "Checking for attribute(visibility) support... Yes." \| tee -a configure.log
833	else
834	echo "Checking for attribute(visibility) support... No." \| tee -a configure.log
835	fi
836	fi
837
838	# show the results in the log
839	echo >> configure.log
840	echo ALL = $ALL >> configure.log
841	echo AR = $AR >> configure.log
842	echo ARFLAGS = $ARFLAGS >> configure.log
843	echo CC = $CC >> configure.log
844	echo CFLAGS = $CFLAGS >> configure.log
845	echo CPP = $CPP >> configure.log
846	echo EXE = $EXE >> configure.log
847	echo LDCONFIG = $LDCONFIG >> configure.log
848	echo LDFLAGS = $LDFLAGS >> configure.log
849	echo LDSHARED = $LDSHARED >> configure.log
850	echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
851	echo OBJC = $OBJC >> configure.log
852	echo PIC_OBJC = $PIC_OBJC >> configure.log
853	echo RANLIB = $RANLIB >> configure.log
854	echo SFLAGS = $SFLAGS >> configure.log
855	echo SHAREDLIB = $SHAREDLIB >> configure.log
856	echo SHAREDLIBM = $SHAREDLIBM >> configure.log
857	echo SHAREDLIBV = $SHAREDLIBV >> configure.log
858	echo STATICLIB = $STATICLIB >> configure.log
859	echo TEST = $TEST >> configure.log
860	echo VER = $VER >> configure.log
861	echo SRCDIR = $SRCDIR >> configure.log
862	echo exec_prefix = $exec_prefix >> configure.log
863	echo includedir = $includedir >> configure.log
864	echo libdir = $libdir >> configure.log
865	echo mandir = $mandir >> configure.log
866	echo prefix = $prefix >> configure.log
867	echo sharedlibdir = $sharedlibdir >> configure.log
868	echo uname = $uname >> configure.log
869
870	# update Makefile with the configure results
871	sed < ${SRCDIR}Makefile.in "
872	/^CC =/s#=.#=$CC#
873	/^CFLAGS =/s#=.#=$CFLAGS#
874	/^SFLAGS =/s#=.#=$SFLAGS#
875	/^LDFLAGS =/s#=.#=$LDFLAGS#
876	/^LDSHARED =/s#=.#=$LDSHARED#
877	/^CPP =/s#=.#=$CPP#
878	/^STATICLIB =/s#=.#=$STATICLIB#
879	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
880	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
881	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
882	/^AR =/s#=.#=$AR#
883	/^ARFLAGS =/s#=.#=$ARFLAGS#
884	/^RANLIB =/s#=.#=$RANLIB#
885	/^LDCONFIG =/s#=.#=$LDCONFIG#
886	/^LDSHAREDLIBC =/s#=.#=$LDSHAREDLIBC#
887	/^EXE =/s#=.#=$EXE#
888	/^SRCDIR =/s#=.#=$SRCDIR#
889	/^ZINC =/s#=.#=$ZINC#
890	/^ZINCOUT =/s#=.#=$ZINCOUT#
891	/^prefix =/s#=.#=$prefix#
892	/^exec_prefix =/s#=.#=$exec_prefix#
893	/^libdir =/s#=.#=$libdir#
894	/^sharedlibdir =/s#=.#=$sharedlibdir#
895	/^includedir =/s#=.#=$includedir#
896	/^mandir =/s#=.#=$mandir#
897	/^OBJC =/s#=.#= $OBJC#
898	/^PIC_OBJC =/s#=.#= $PIC_OBJC#
899	/^all: /s#:.#: $ALL#
900	/^test: /s#:.#: $TEST#
901	" > Makefile
902
903	# create zlib.pc with the configure results
904	sed < ${SRCDIR}zlib.pc.in "
905	/^CC =/s#=.#=$CC#
906	/^CFLAGS =/s#=.#=$CFLAGS#
907	/^CPP =/s#=.#=$CPP#
908	/^LDSHARED =/s#=.#=$LDSHARED#
909	/^STATICLIB =/s#=.#=$STATICLIB#
910	/^SHAREDLIB =/s#=.#=$SHAREDLIB#
911	/^SHAREDLIBV =/s#=.#=$SHAREDLIBV#
912	/^SHAREDLIBM =/s#=.#=$SHAREDLIBM#
913	/^AR =/s#=.#=$AR#
914	/^ARFLAGS =/s#=.#=$ARFLAGS#
915	/^RANLIB =/s#=.#=$RANLIB#
916	/^EXE =/s#=.#=$EXE#
917	/^prefix =/s#=.#=$prefix#
918	/^exec_prefix =/s#=.#=$exec_prefix#
919	/^libdir =/s#=.#=$libdir#
920	/^sharedlibdir =/s#=.#=$sharedlibdir#
921	/^includedir =/s#=.#=$includedir#
922	/^mandir =/s#=.#=$mandir#
923	/^LDFLAGS =/s#=.#=$LDFLAGS#
924	" \| sed -e "
925	s/\@VERSION\@/$VER/g;
926	" > zlib.pc
927
928	# done
929	leave 0

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/libs/zlib-1.3.1/configure

Download in other formats: