2
# configure script for zlib.
4
# Normally configure builds both a static and a shared library.
5
# If you want to build just a static library, use: ./configure --static
7
# To impose specific compiler or flags or install directory, use for example:
8
# prefix=$HOME CC=cc CFLAGS="-O4" ./configure
9
# or for csh/tcsh users:
10
# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
12
# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
13
# If you have problems, try without defining CC and CFLAGS before reporting
16
if [ -n "${CHOST}" ]; then
17
uname="$(echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/')"
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CROSS_PREFIX="${CHOST}-"
22
LDFLAGS="${LDFLAGS} -L. ${STATICLIB}"
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VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
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VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h`
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VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h`
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VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h`
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if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
28
AR=${AR-"${CROSS_PREFIX}ar"}
29
test -n "${CROSS_PREFIX}" && echo Using ${AR}
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test -n "${CROSS_PREFIX}" && echo Using ${AR}
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if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then
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RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
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test -n "${CROSS_PREFIX}" && echo Using ${RANLIB}
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RANLIB=${RANLIB-"ranlib"}
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if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then
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NM=${NM-"${CROSS_PREFIX}nm"}
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test -n "${CROSS_PREFIX}" && echo Using ${NM}
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LDCONFIG=${LDCONFIG-"ldconfig"}
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LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
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prefix=${prefix-/usr/local}
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exec_prefix=${exec_prefix-'${prefix}'}
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libdir=${libdir-'${exec_prefix}/lib'}
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sharedlibdir=${sharedlibdir-'${libdir}'}
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includedir=${includedir-'${prefix}/include'}
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mandir=${mandir-'${prefix}/share/man'}
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echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]'
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echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]'
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echo ' [--includedir=INCLUDEDIR]'
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-p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
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-e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
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-l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;;
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--sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;;
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-i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;;
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-u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
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-p* | --prefix) prefix="$2"; shift; shift ;;
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-e* | --eprefix) exec_prefix="$2"; shift; shift ;;
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-l* | --libdir) libdir="$2"; shift; shift ;;
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-i* | --includedir) includedir="$2"; shift; shift ;;
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-s* | --shared | --enable-shared) shared=1; shift ;;
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-t | --static) shared=0; shift ;;
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-z* | --zprefix) zprefix=1; shift ;;
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-6* | --64) build64=1; shift ;;
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--sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;;
87
--localstatedir=*) echo "ignored option: --localstatedir"; shift ;;
88
*) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;;
95
int hello() {return getchar();}
98
test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc...
99
cc=${CC-${CROSS_PREFIX}gcc}
100
cflags=${CFLAGS-"-O3"}
101
# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
106
if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
108
SFLAGS="${CFLAGS--O3} -fPIC"
109
CFLAGS="${CFLAGS--O3}"
110
if test $build64 -eq 1; then
111
CFLAGS="${CFLAGS} -m64"
112
SFLAGS="${SFLAGS} -m64"
114
if test "${ZLIBGCCWARN}" = "YES"; then
115
CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
117
if test -z "$uname"; then
118
uname=`(uname -s || echo unknown) 2>/dev/null`
121
Linux* | linux* | GNU | GNU/* | *BSD | DragonFly) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
122
CYGWIN* | Cygwin* | cygwin* | OS/2*)
126
rm -f $test.[co] $test $test$shared_ext
127
echo "Please use win32/Makefile.gcc instead."
129
LDSHARED=${LDSHARED-"$cc -shared"}
132
QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
133
# (alain.bonnefoy@icbt.com)
134
LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
136
LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
137
case `(uname -m || echo unknown) 2>/dev/null` in
140
SHAREDLIB='libz.so' ;;
143
SHAREDLIB='libz.sl' ;;
145
Darwin*) shared_ext='.dylib'
146
SHAREDLIB=libz$shared_ext
147
SHAREDLIBV=libz.$VER$shared_ext
148
SHAREDLIBM=libz.$VER1$shared_ext
149
LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} ;;
150
*) LDSHARED=${LDSHARED-"$cc -shared"} ;;
153
# find system name and corresponding cc options
156
if test -z "$uname"; then
157
uname=`(uname -sr || echo unknown) 2>/dev/null`
160
HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
161
CFLAGS=${CFLAGS-"-O"}
162
# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
163
LDSHARED=${LDSHARED-"ld -b"}
164
case `(uname -m || echo unknown) 2>/dev/null` in
167
SHAREDLIB='libz.so' ;;
170
SHAREDLIB='libz.sl' ;;
172
IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
173
CFLAGS=${CFLAGS-"-ansi -O2"}
174
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
175
OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
176
CFLAGS=${CFLAGS-"-O -std1"}
177
LDFLAGS="${LDFLAGS} -Wl,-rpath,."
178
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
179
OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
180
CFLAGS=${CFLAGS-"-O -std1"}
181
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
182
QNX*) SFLAGS=${CFLAGS-"-4 -O"}
183
CFLAGS=${CFLAGS-"-4 -O"}
184
LDSHARED=${LDSHARED-"cc"}
185
RANLIB=${RANLIB-"true"}
187
SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
188
CFLAGS=${CFLAGS-"-O3"}
189
LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
190
SunOS\ 5*) LDSHARED=${LDSHARED-"cc -G"}
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case `(uname -m || echo unknown) 2>/dev/null` in
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SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."}
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CFLAGS=${CFLAGS-"-xpentium -fast"} ;;
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SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."}
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CFLAGS=${CFLAGS-"-fast -xcg92"} ;;
199
SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
200
CFLAGS=${CFLAGS-"-O2"}
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LDSHARED=${LDSHARED-"ld"} ;;
202
SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
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CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
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LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
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UNIX_System_V\ 4.2.0)
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SFLAGS=${CFLAGS-"-KPIC -O"}
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CFLAGS=${CFLAGS-"-O"}
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LDSHARED=${LDSHARED-"cc -G"} ;;
210
SFLAGS=${CFLAGS-"-Kconform_pic -O"}
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CFLAGS=${CFLAGS-"-O"}
212
LDSHARED=${LDSHARED-"cc -G"} ;;
214
SFLAGS=${CFLAGS-"-KPIC -O"}
215
CFLAGS=${CFLAGS-"-O"}
216
LDSHARED=${LDSHARED-"cc -G"} ;;
217
AIX*) # Courtesy of dbakker@arrayasolutions.com
218
SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
219
CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
220
LDSHARED=${LDSHARED-"xlc -G"} ;;
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# send working options for other systems to zlib@gzip.org
222
*) SFLAGS=${CFLAGS-"-O"}
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CFLAGS=${CFLAGS-"-O"}
224
LDSHARED=${LDSHARED-"cc -shared"} ;;
228
SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
229
SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
230
SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
232
if test $shared -eq 1; then
233
echo Checking for shared library support...
234
# we must test in two steps (cc then ld), required at least on SunOS 4.x
235
if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" &&
236
test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then
237
echo Building shared library $SHAREDLIBV with $CC.
238
elif test -z "$old_cc" -a -z "$old_cflags"; then
239
echo No shared library support.
242
echo Tested $CC -w -c $SFLAGS $test.c
243
$CC -w -c $SFLAGS $test.c
244
echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o
245
$LDSHARED $SFLAGS -o $test$shared_ext $test.o
246
echo 'No shared library support; try without defining CC and CFLAGS'
250
if test $shared -eq 0; then
253
TEST="all teststatic"
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echo Building static library $STATICLIB version $VER with $CC.
260
TEST="all teststatic testshared"
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#include <sys/types.h>
267
if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then
268
CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
269
SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
271
TEST="${TEST} test64"
272
echo "Checking for off64_t... Yes."
273
echo "Checking for fseeko... Yes."
275
echo "Checking for off64_t... No."
283
if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
284
echo "Checking for fseeko... Yes."
286
CFLAGS="${CFLAGS} -DNO_FSEEKO"
287
SFLAGS="${SFLAGS} -DNO_FSEEKO"
288
echo "Checking for fseeko... No."
292
cp -p zconf.h.in zconf.h
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int main() { return 0; }
298
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
299
sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
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mv zconf.temp.h zconf.h
301
echo "Checking for unistd.h... Yes."
303
echo "Checking for unistd.h... No."
306
if test $zprefix -eq 1; then
307
sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
308
mv zconf.temp.h zconf.h
309
echo "Using z_ prefix on all symbols."
327
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
328
echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()."
334
int mytest(const char *fmt, ...)
340
vsnprintf(buf, sizeof(buf), fmt, ap);
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return (mytest("Hello%d\n", 1));
351
if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
352
echo "Checking for vsnprintf() in stdio.h... Yes."
358
int mytest(const char *fmt, ...)
365
n = vsnprintf(buf, sizeof(buf), fmt, ap);
372
return (mytest("Hello%d\n", 1));
376
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
377
echo "Checking for return value of vsnprintf()... Yes."
379
CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
380
SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
381
echo "Checking for return value of vsnprintf()... No."
382
echo " WARNING: apparently vsnprintf() does not return a value. zlib"
383
echo " can build but will be open to possible string-format security"
384
echo " vulnerabilities."
387
CFLAGS="$CFLAGS -DNO_vsnprintf"
388
SFLAGS="$SFLAGS -DNO_vsnprintf"
389
echo "Checking for vsnprintf() in stdio.h... No."
390
echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
391
echo " can build but will be open to possible buffer-overflow security"
392
echo " vulnerabilities."
398
int mytest(const char *fmt, ...)
405
n = vsprintf(buf, fmt, ap);
412
return (mytest("Hello%d\n", 1));
416
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
417
echo "Checking for return value of vsprintf()... Yes."
419
CFLAGS="$CFLAGS -DHAS_vsprintf_void"
420
SFLAGS="$SFLAGS -DHAS_vsprintf_void"
421
echo "Checking for return value of vsprintf()... No."
422
echo " WARNING: apparently vsprintf() does not return a value. zlib"
423
echo " can build but will be open to possible string-format security"
424
echo " vulnerabilities."
428
echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()."
437
snprintf(buf, sizeof(buf), "%s", "foo");
447
if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
448
echo "Checking for snprintf() in stdio.h... Yes."
457
return snprintf(buf, sizeof(buf), "%s", "foo");
466
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
467
echo "Checking for return value of snprintf()... Yes."
469
CFLAGS="$CFLAGS -DHAS_snprintf_void"
470
SFLAGS="$SFLAGS -DHAS_snprintf_void"
471
echo "Checking for return value of snprintf()... No."
472
echo " WARNING: apparently snprintf() does not return a value. zlib"
473
echo " can build but will be open to possible string-format security"
474
echo " vulnerabilities."
477
CFLAGS="$CFLAGS -DNO_snprintf"
478
SFLAGS="$SFLAGS -DNO_snprintf"
479
echo "Checking for snprintf() in stdio.h... No."
480
echo " WARNING: snprintf() not found, falling back to sprintf(). zlib"
481
echo " can build but will be open to possible buffer-overflow security"
482
echo " vulnerabilities."
491
return sprintf(buf, "%s", "foo");
500
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
501
echo "Checking for return value of sprintf()... Yes."
503
CFLAGS="$CFLAGS -DHAS_sprintf_void"
504
SFLAGS="$SFLAGS -DHAS_sprintf_void"
505
echo "Checking for return value of sprintf()... No."
506
echo " WARNING: apparently sprintf() does not return a value. zlib"
507
echo " can build but will be open to possible string-format security"
508
echo " vulnerabilities."
513
if test "$gcc" -eq 1; then
515
#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
516
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
518
# define ZLIB_INTERNAL
520
int ZLIB_INTERNAL foo;
526
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
527
echo "Checking for attribute(visibility) support... Yes."
529
CFLAGS="$CFLAGS -DNO_VIZ"
530
SFLAGS="$SFLAGS -DNO_VIZ"
531
echo "Checking for attribute(visibility) support... No."
538
if test "`$NM $test.o | grep _hello`" = ""; then
539
CPP="$CPP -DNO_UNDERLINE"
540
echo Checking for underline in external names... No.
542
echo Checking for underline in external names... Yes.
546
rm -f $test.[co] $test $test$shared_ext
551
/^CFLAGS *=/s#=.*#=$CFLAGS#
552
/^SFLAGS *=/s#=.*#=$SFLAGS#
553
/^LDFLAGS *=/s#=.*#=$LDFLAGS#
554
/^LDSHARED *=/s#=.*#=$LDSHARED#
555
/^CPP *=/s#=.*#=$CPP#
556
/^STATICLIB *=/s#=.*#=$STATICLIB#
557
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
558
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
559
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
560
/^AR *=/s#=.*#=$AR_RC#
561
/^RANLIB *=/s#=.*#=$RANLIB#
562
/^LDCONFIG *=/s#=.*#=$LDCONFIG#
563
/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
564
/^EXE *=/s#=.*#=$EXE#
565
/^prefix *=/s#=.*#=$prefix#
566
/^exec_prefix *=/s#=.*#=$exec_prefix#
567
/^libdir *=/s#=.*#=$libdir#
568
/^sharedlibdir *=/s#=.*#=$sharedlibdir#
569
/^includedir *=/s#=.*#=$includedir#
570
/^mandir *=/s#=.*#=$mandir#
571
/^all: */s#:.*#: $ALL#
572
/^test: */s#:.*#: $TEST#
577
/^CFLAGS *=/s#=.*#=$CFLAGS#
578
/^CPP *=/s#=.*#=$CPP#
579
/^LDSHARED *=/s#=.*#=$LDSHARED#
580
/^STATICLIB *=/s#=.*#=$STATICLIB#
581
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
582
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
583
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
584
/^AR *=/s#=.*#=$AR_RC#
585
/^RANLIB *=/s#=.*#=$RANLIB#
586
/^EXE *=/s#=.*#=$EXE#
587
/^prefix *=/s#=.*#=$prefix#
588
/^exec_prefix *=/s#=.*#=$exec_prefix#
589
/^libdir *=/s#=.*#=$libdir#
590
/^sharedlibdir *=/s#=.*#=$sharedlibdir#
591
/^includedir *=/s#=.*#=$includedir#
592
/^mandir *=/s#=.*#=$mandir#
593
/^LDFLAGS *=/s#=.*#=$LDFLAGS#
595
s/\@VERSION\@/$VER/g;