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configure
executable file
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configure
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#!/bin/sh
trap "rm -f conftest* core a.out; exit 1" 1 2 3 15
prefix="${prefix-/usr/local}"
exec_prefix="${exec_prefix-\$(prefix)}"
bindir="${bindir-\$(exec_prefix)/bin}"
mandir="${mandir-\$(prefix)/man}"
man1dir="${man1dir-\$(mandir)/man1}"
cc="${CC-gcc}"
#cc="${CC-clang}"
#cc="${CC-c99}"
cflags="$CFLAGS"
enable_debug=0
with_system_libpng=0
with_system_zlib=0
with_preconfigured_libpng=1
with_preconfigured_zlib=0
for arg in "$@"
do
case "$arg" in
-- )
option="$arg"
;;
--* )
option=`expr "X$arg" : 'X-\(.*\)'`
;;
* )
option="$arg"
;;
esac
case "$arg" in
*=* )
optarg=`expr "X$arg" : 'X[^=]*=\(.*\)'`
;;
* )
optarg=""
;;
esac
case "$option" in
-help | -hel | -he | -h )
echo "Usage:"
echo " $0 [options]"
echo "Options:"
echo " -h, -help Show this help"
echo "Installation directories:"
echo " -prefix=PREFIX Install architecture-independent files in PREFIX"
echo " [default: $prefix]"
echo " -exec-prefix=EPREFIX Install architecture-dependent files in EPREFIX"
echo " [default: PREFIX]"
echo " -bindir=DIR Install executable in DIR [default: EPREFIX/bin]"
echo " -mandir=DIR Install manual in DIR [default: PREFIX/man]"
echo "Optional features:"
echo " -enable-debug Enable debug build flags and run-time checks"
echo "Optional packages:"
echo " -with-system-libpng Use the system-supplied libpng"
echo " [default: false]"
echo " -with-system-zlib Use the system-supplied zlib"
echo " [default: with-system-libpng]"
echo "Environment variables:"
echo " CC C compiler command"
echo " LD Linker command"
echo " CFLAGS C compiler flags (e.g. -O3)"
echo " CPPFLAGS C preprocessor flags (e.g. -I DIR)"
echo " LDFLAGS Linker flags (e.g. -L DIR)"
echo " LIBS Additional libraries (e.g. -lfoo)"
exit 0
;;
-prefix | -prefi | -pref | -pre | -pr | -p )
prefix="$2"
shift
;;
-prefix=* | -prefi=* | -pref=* | -pre=* | -pr=* | -p=* )
prefix="$optarg"
;;
-exec-prefix | -exec_prefix | -exec-prefi | -exec_prefi \
| -exec-pref | -exec_pref | -exec-pre | -exec_pre \
| -exec-pr | -exec_pr | -exec-p | -exec_p | exec- | -exec_ \
| -exec | -exe | -ex | -e )
exec_prefix="$2"
shift
;;
-exec-prefix=* | -exec_prefix=* | -exec-prefi=* | -exec_prefi=* \
| -exec-pref=* | -exec_pref=* | -exec-pre=* | -exec_pre=* \
| -exec-pr=* | -exec_pr=* | -exec-p=* | -exec_p=* | exec-=* | -exec_=* \
| -exec=* | -exe=* | -ex=* | -e=* )
exec_prefix="$optarg"
;;
-bindir | -bindi | -bind | -bin | -bi | -b )
bindir="$2"
shift
;;
-bindir=* | -bindi=* | -bind=* | -bin=* | -bi=* | -b=* )
bindir="$optarg"
;;
-mandir | -mandi | -mand | -man | -ma | -m )
mandir="$2"
shift
;;
-mandir=* | -mandi=* | -mand=* | -man=* | -ma=* | -m=* )
mandir="$optarg"
;;
-enable-debug )
enable_debug=1
;;
-disable-debug )
enable_debug=0
;;
-with-system-libpng )
with_system_libpng=1
# Must use the system-supplied zlib with the system-supplied libpng.
with_system_zlib=1
;;
-without-system-libpng )
with_system_libpng=0
;;
-with-system-zlib )
with_system_zlib=1
;;
-without-system-zlib )
with_system_zlib=0
# Can't use the system-supplied libpng without the system-supplied zlib.
with_system_libpng=0
;;
* )
echo "error: unknown option: $arg"
echo "Type \"$0 -help\" for help"
exit 64 # EX_USAGE
;;
esac
done
if test "$with_system_libpng" -ne 0
then
sed_config_libpng="
s:@USE_SYSTEM_LIBPNG_TRUE@::g
s:@USE_SYSTEM_LIBPNG_FALSE@:#:g
"
else
sed_config_libpng="
s:@USE_SYSTEM_LIBPNG_FALSE@::g
s:@USE_SYSTEM_LIBPNG_TRUE@:#:g
"
fi
if test "$with_system_zlib" -ne 0
then
sed_config_zlib="
s:@USE_SYSTEM_ZLIB_TRUE@::g
s:@USE_SYSTEM_ZLIB_FALSE@:#:g
"
else
sed_config_zlib="
s:@USE_SYSTEM_ZLIB_FALSE@::g
s:@USE_SYSTEM_ZLIB_TRUE@:#:g
"
case `uname -s` in
mingw* | MINGW* | windows* | WINDOWS* )
with_preconfigured_zlib=1
sed_config_zlib="
$sed_config_zlib
s:@ZLIB_MK@:win32/Makefile.gcc:g
/MAKE.*ZLIB_MK/ s:distclean:clean:
"
;;
esac
fi
test=conftest$$
cat > $test.c <<EOM
int hello() { return 42; }
EOM
gccish=0
case "$cc" in
*gcc* | *clang* )
echo "Checking for $cc..."
if ($cc -c $cflags $test.c) 2>/dev/null
then
gccish=1
fi
;;
esac
rm -f $test.c $test.o
if test $gccish -ne 0
then
CC="${CC-$cc}"
CFLAGS="${CFLAGS--O2 -Wall -Wextra}"
else
CC="${CC-cc}"
CFLAGS="${CFLAGS--O}"
fi
if test $enable_debug -ne 0
then
CPPFLAGS="$CPPFLAGS -DDEBUG -D_DEBUG"
CFLAGS="$CFLAGS -g"
LDFLAGS="$LDFLAGS -g"
fi
if test $with_system_libpng -eq 0
then
if test "$with_preconfigured_libpng" -ne 0
then
echo "Using pre-configured libpng..."
if test $gccish -ne 0
then
sed_config_libpng="
$sed_config_libpng
s:@LIBPNG_MK@:scripts/makefile.gcc:g
"
else
sed_config_libpng="
$sed_config_libpng
s:@LIBPNG_MK@:scripts/makefile.std:g
"
fi
else
echo "Configuring libpng..."
(cd src/libpng && ./configure)
if test $? -ne 0
then
echo "error: could not configure: libpng"
exit 1
fi
fi
else
echo "Checking for system libpng..."
test=conftest$$
cat > $test.c <<EOM
#include <png.h>
#if PNG_LIBPNG_VER < 10209
#error This program requires libpng version 1.2.9 or higher
#endif
int dummy;
EOM
($CC -c $CPPFLAGS $CFLAGS $test.c) 2>/dev/null
status=$?
rm -f $test.c $test.o
if test $status -ne 0
then
echo "error: missing libpng or incorrect libpng version"
echo "note: libpng version 1.2.9 or higher is required"
exit 1
fi
fi
if test $with_system_zlib -eq 0
then
if test "$with_preconfigured_zlib" -ne 0
then
echo "Using pre-configured zlib..."
else
echo "Configuring zlib..."
(cd src/zlib && ./configure --static)
if test $? -ne 0
then
echo "error: could not configure: zlib"
exit 1
fi
fi
else
echo "Checking for system zlib..."
test=conftest$$
cat > $test.c <<EOM
#include <zlib.h>
#if ZLIB_VERNUM < 0x1210
#error This program requires zlib version 1.2.1 or higher.
#endif
int dummy;
EOM
($CC -c $CPPFLAGS $CFLAGS $test.c) 2>/dev/null
status=$?
rm -f $test.c $test.o
if test $status -ne 0
then
echo "error: missing zlib or incorrect zlib version"
echo "note: zlib version 1.2.1 or higher is required"
exit 1
fi
fi
sed_config="
$sed_config_libpng
$sed_config_zlib
s#@prefix@#$prefix#g
s#@exec_prefix@#$exec_prefix#g
s#@bindir@#$bindir#g
s#@mandir@#$mandir#g
s#@man1dir@#$man1dir#g
s#@CC@#${CC-cc}#g
s#@CFLAGS@#${CFLAGS--O}#g
s#@CPP@#${CPP-\$(CC) -E}#g
s#@CPPFLAGS@#${CPPFLAGS-}#g
s#@LD@#${LD-\$(CC)}#g
s#@LDFLAGS@#${LDFLAGS--s}#g
s#@AR@#${AR-ar}#g
s#@ARFLAGS@#${ARFLAGS-cru}#g
s#@RANLIB@#${RANLIB-ranlib}#g
s#@LIBS@#${LIBS-}#g
s#@LIBM@#${LIBM--lm}#g
s#@LIBZ@#${LIBZ--lz}#g
s#@LIBPNG@#${LIBPNG--lpng}#g
s#@DIFF@#${DIFF-diff -b -u}#g
s#@RM_F@#${RM_F-rm -f}#g
s#@[A-Z]*_MK@#Makefile#g
s# *\$##
"
for makefile in \
./Makefile \
src/Makefile \
src/gifread/Makefile \
src/minitiff/Makefile \
src/opngreduc/Makefile \
src/optipng/Makefile \
src/optipng/man/Makefile \
src/pngxtern/Makefile \
src/pnmio/Makefile
do
sed "$sed_config" $makefile.in > $makefile
done