zlib/configure

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#!/bin/sh
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# configure script for zlib.
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#
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# Normally configure builds both a static and a shared library.
# If you want to build just a static library, use: ./configure --static
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#
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# To impose specific compiler or flags or install directory, use for example:
# prefix=$HOME CC=cc CFLAGS="-O4" ./configure
# or for csh/tcsh users:
# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
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# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
# If you have problems, try without defining CC and CFLAGS before reporting
# an error.
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# start off configure.log
echo -------------------- >> configure.log
echo $0 $* >> configure.log
date >> configure.log
# get source directory
SRCDIR=`dirname $0`
if test $SRCDIR = "."; then
ZINC=""
ZINCOUT="-I."
SRCDIR=""
else
ZINC='-include zconf.h'
ZINCOUT='-I. -I$(SRCDIR)'
SRCDIR="$SRCDIR/"
fi
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# set command prefix for cross-compilation
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if [ -n "${CHOST}" ]; then
uname=${CHOST}
mname=${CHOST}
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CROSS_PREFIX="${CHOST}-"
else
mname=`(uname -a || echo unknown) 2>/dev/null`
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fi
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# destination name for static library
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STATICLIB=libz.a
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# extract zlib version numbers from zlib.h
VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < ${SRCDIR}zlib.h`
VER3=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\(\\.[0-9]\{1,\}\)\{1,2\}\).*/\1/p'`
VER1=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\)\\..*/\1/p'`
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# establish commands for library building
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if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
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AR=${AR-"${CROSS_PREFIX}ar"}
test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
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else
AR=${AR-"ar"}
test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
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fi
ARFLAGS=${ARFLAGS-"rc"}
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if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then
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RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log
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else
RANLIB=${RANLIB-"ranlib"}
fi
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if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then
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NM=${NM-"${CROSS_PREFIX}nm"}
test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log
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else
NM=${NM-"nm"}
fi
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# set defaults before processing command line options
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LDCONFIG=${LDCONFIG-"ldconfig"}
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LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
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ARCHS=
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prefix=${prefix-/usr/local}
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exec_prefix=${exec_prefix-'${prefix}'}
libdir=${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-'${prefix}/share/man'}
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shared_ext='.so'
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shared=1
solo=0
cover=0
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zprefix=0
zconst=0
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build64=0
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gcc=0
warn=0
debug=0
address=0
memory=0
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old_cc="$CC"
old_cflags="$CFLAGS"
OBJC='$(OBJZ) $(OBJG)'
PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
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# leave this script, optionally in a bad way
leave()
{
if test "$*" != "0"; then
echo "** $0 aborting." | tee -a configure.log
fi
rm -rf $test.[co] $test $test$shared_ext $test.gcno $test.dSYM ./--version
echo -------------------- >> configure.log
echo >> configure.log
echo >> configure.log
exit $1
}
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# process command line options
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while test $# -ge 1
do
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case "$1" in
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-h* | --help)
echo 'usage:' | tee -a configure.log
echo ' configure [--const] [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log
echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
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exit 0 ;;
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-p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
-e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
-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 ;;
-u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
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-p* | --prefix) prefix="$2"; shift; shift ;;
-e* | --eprefix) exec_prefix="$2"; shift; shift ;;
-l* | --libdir) libdir="$2"; shift; shift ;;
-i* | --includedir) includedir="$2"; shift; shift ;;
-s* | --shared | --enable-shared) shared=1; shift ;;
-t | --static) shared=0; shift ;;
--solo) solo=1; shift ;;
--cover) cover=1; shift ;;
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-z* | --zprefix) zprefix=1; shift ;;
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-6* | --64) build64=1; shift ;;
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-a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
--sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;;
--localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;;
-c* | --const) zconst=1; shift ;;
-w* | --warn) warn=1; shift ;;
-d* | --debug) debug=1; shift ;;
--sanitize) address=1; shift ;;
--address) address=1; shift ;;
--memory) memory=1; shift ;;
*)
echo "unknown option: $1" | tee -a configure.log
echo "$0 --help for help" | tee -a configure.log
leave 1;;
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esac
done
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# temporary file name
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test=ztest$$
# put arguments in log, also put test file in log if used in arguments
show()
{
case "$*" in
*$test.c*)
echo === $test.c === >> configure.log
cat $test.c >> configure.log
echo === >> configure.log;;
esac
echo $* >> configure.log
}
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# check for gcc vs. cc and set compile and link flags based on the system identified by uname
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cat > $test.c <<EOF
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extern int getchar();
int hello() {return getchar();}
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EOF
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if test -z "$CC"; then
echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log
if ${CROSS_PREFIX}gcc -v >/dev/null 2>&1; then
cc=${CROSS_PREFIX}gcc
else
cc=${CROSS_PREFIX}cc
fi
else
cc=${CC}
fi
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case "$cc" in
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*gcc*) gcc=1 ;;
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*clang*) gcc=1 ;;
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esac
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case `$cc -v 2>&1` in
*gcc*) gcc=1 ;;
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*clang*) gcc=1 ;;
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esac
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show $cc -c $test.c
if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
echo ... using gcc >> configure.log
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CC="$cc"
CFLAGS="${CFLAGS--O3}"
SFLAGS="${CFLAGS--O3} -fPIC"
if test "$ARCHS"; then
CFLAGS="${CFLAGS} ${ARCHS}"
LDFLAGS="${LDFLAGS} ${ARCHS}"
fi
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if test $build64 -eq 1; then
CFLAGS="${CFLAGS} -m64"
SFLAGS="${SFLAGS} -m64"
fi
if test "$warn" -eq 1; then
if test "$zconst" -eq 1; then
CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -DZLIB_CONST"
else
CFLAGS="${CFLAGS} -Wall -Wextra"
fi
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fi
if test $address -eq 1; then
CFLAGS="${CFLAGS} -g -fsanitize=address -fno-omit-frame-pointer"
fi
if test $memory -eq 1; then
CFLAGS="${CFLAGS} -g -fsanitize=memory -fno-omit-frame-pointer"
fi
if test $debug -eq 1; then
CFLAGS="${CFLAGS} -DZLIB_DEBUG"
SFLAGS="${SFLAGS} -DZLIB_DEBUG"
fi
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if test -z "$uname"; then
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uname=`(uname -s || echo unknown) 2>/dev/null`
fi
case "$uname" in
Linux* | linux* | *-linux* | GNU | GNU/* | solaris*)
case "$mname" in
*sparc*)
LDFLAGS="${LDFLAGS} -Wl,--no-warn-rwx-segments" ;;
esac
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
*BSD | *bsd* | DragonFly)
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
LDCONFIG="ldconfig -m" ;;
CYGWIN* | Cygwin* | cygwin* | *-cygwin* | OS/2*)
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EXE='.exe' ;;
MINGW* | mingw* | *-mingw*)
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rm -f $test.[co] $test $test$shared_ext
echo "If this doesn't work for you, try win32/Makefile.gcc." | tee -a configure.log
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LDSHARED=${LDSHARED-"$cc -shared"}
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LDSHAREDLIBC=""
EXE='.exe' ;;
QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
# (alain.bonnefoy@icbt.com)
LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
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HP-UX*)
LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
case `(uname -m || echo unknown) 2>/dev/null` in
ia64)
shared_ext='.so'
SHAREDLIB='libz.so' ;;
*)
shared_ext='.sl'
SHAREDLIB='libz.sl' ;;
esac ;;
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AIX*)
LDFLAGS="${LDFLAGS} -Wl,-brtl" ;;
Darwin* | darwin* | *-darwin*)
shared_ext='.dylib'
SHAREDLIB=libz$shared_ext
SHAREDLIBV=libz.$VER$shared_ext
SHAREDLIBM=libz.$VER1$shared_ext
LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
if "${CROSS_PREFIX}libtool" -V 2>&1 | grep Apple > /dev/null; then
AR="${CROSS_PREFIX}libtool"
elif libtool -V 2>&1 | grep Apple > /dev/null; then
AR="libtool"
else
AR="/usr/bin/libtool"
fi
ARFLAGS="-o" ;;
*)
LDSHARED=${LDSHARED-"$cc -shared"} ;;
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esac
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else
# find system name and corresponding cc options
CC=${CC-cc}
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gcc=0
echo ... using $CC >> configure.log
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if test -z "$uname"; then
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uname=`(uname -sr || echo unknown) 2>/dev/null`
fi
case "$uname" in
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HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
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CFLAGS=${CFLAGS-"-O"}
# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
LDSHARED=${LDSHARED-"ld -b"}
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case `(uname -m || echo unknown) 2>/dev/null` in
ia64)
shared_ext='.so'
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SHAREDLIB='libz.so' ;;
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*)
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shared_ext='.sl'
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SHAREDLIB='libz.sl' ;;
esac ;;
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IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
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CFLAGS=${CFLAGS-"-ansi -O2"}
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LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
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OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
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CFLAGS=${CFLAGS-"-O -std1"}
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LDFLAGS="${LDFLAGS} -Wl,-rpath,."
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
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OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
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CFLAGS=${CFLAGS-"-O -std1"}
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LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
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QNX*) SFLAGS=${CFLAGS-"-4 -O"}
CFLAGS=${CFLAGS-"-4 -O"}
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LDSHARED=${LDSHARED-"cc"}
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RANLIB=${RANLIB-"true"}
AR="cc"
ARFLAGS="-A" ;;
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SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
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CFLAGS=${CFLAGS-"-O3"}
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LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
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SunOS\ 5* | solaris*)
LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"}
SFLAGS=${CFLAGS-"-fast -KPIC"}
CFLAGS=${CFLAGS-"-fast"}
if test $build64 -eq 1; then
# old versions of SunPRO/Workshop/Studio don't support -m64,
# but newer ones do. Check for it.
flag64=`$CC -flags | egrep -- '^-m64'`
if test x"$flag64" != x"" ; then
CFLAGS="${CFLAGS} -m64"
SFLAGS="${SFLAGS} -m64"
else
case `(uname -m || echo unknown) 2>/dev/null` in
i86*)
SFLAGS="$SFLAGS -xarch=amd64"
CFLAGS="$CFLAGS -xarch=amd64" ;;
*)
SFLAGS="$SFLAGS -xarch=v9"
CFLAGS="$CFLAGS -xarch=v9" ;;
esac
fi
fi
if test -n "$ZINC"; then
ZINC='-I- -I. -I$(SRCDIR)'
fi
;;
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SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
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CFLAGS=${CFLAGS-"-O2"}
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LDSHARED=${LDSHARED-"ld"} ;;
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SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
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LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
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UNIX_System_V\ 4.2.0)
SFLAGS=${CFLAGS-"-KPIC -O"}
CFLAGS=${CFLAGS-"-O"}
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LDSHARED=${LDSHARED-"cc -G"} ;;
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UNIX_SV\ 4.2MP)
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SFLAGS=${CFLAGS-"-Kconform_pic -O"}
CFLAGS=${CFLAGS-"-O"}
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LDSHARED=${LDSHARED-"cc -G"} ;;
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OpenUNIX\ 5)
SFLAGS=${CFLAGS-"-KPIC -O"}
CFLAGS=${CFLAGS-"-O"}
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LDSHARED=${LDSHARED-"cc -G"} ;;
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AIX*) # Courtesy of dbakker@arrayasolutions.com
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SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
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LDSHARED=${LDSHARED-"xlc -G"} ;;
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# send working options for other systems to zlib@gzip.org
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*) SFLAGS=${CFLAGS-"-O"}
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CFLAGS=${CFLAGS-"-O"}
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LDSHARED=${LDSHARED-"cc -shared"} ;;
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esac
fi
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# destination names for shared library if not defined above
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SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
echo >> configure.log
# define functions for testing compiler and library characteristics and logging the results
cat > $test.c <<EOF
#error error
EOF
if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
try()
{
show $*
test "`( $* ) 2>&1 | tee -a configure.log`" = ""
}
echo - using any output from compiler to indicate an error >> configure.log
else
try()
{
show $*
got=`( $* ) 2>&1`
ret=$?
if test "$got" != ""; then
printf "%s\n" "$got" >> configure.log
fi
if test $ret -ne 0; then
echo "(exit code "$ret")" >> configure.log
fi
return $ret
}
fi
tryboth()
{
show $*
got=`( $* ) 2>&1`
ret=$?
if test "$got" != ""; then
printf "%s\n" "$got" >> configure.log
fi
if test $ret -ne 0; then
echo "(exit code "$ret")" >> configure.log
return $ret
fi
test "$got" = ""
}
cat > $test.c << EOF
int foo() { return 0; }
EOF
echo "Checking for obsessive-compulsive compiler options..." >> configure.log
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if try $CC -c $CFLAGS $test.c; then
:
else
echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." | tee -a configure.log
leave 1
fi
echo >> configure.log
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# see if shared library build supported
cat > $test.c <<EOF
extern int getchar();
int hello() {return getchar();}
EOF
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if test $shared -eq 1; then
echo Checking for shared library support... | tee -a configure.log
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# we must test in two steps (cc then ld), required at least on SunOS 4.x
if try $CC -w -c $SFLAGS $test.c &&
try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log
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elif test -z "$old_cc" -a -z "$old_cflags"; then
echo No shared library support. | tee -a configure.log
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shared=0;
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else
echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log
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shared=0;
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fi
fi
if test $shared -eq 0; then
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LDSHARED="$CC"
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ALL="static"
TEST="all teststatic"
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SHAREDLIB=""
SHAREDLIBV=""
SHAREDLIBM=""
echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log
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else
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ALL="static shared"
TEST="all teststatic testshared"
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fi
echo >> configure.log
# check for size_t
cat > $test.c <<EOF
#include <stdio.h>
#include <stdlib.h>
size_t dummy = 0;
EOF
if try $CC -c $CFLAGS $test.c; then
echo "Checking for size_t... Yes." | tee -a configure.log
else
echo "Checking for size_t... No." | tee -a configure.log
# find a size_t integer type
# check for long long
cat > $test.c << EOF
long long dummy = 0;
EOF
if try $CC -c $CFLAGS $test.c; then
echo "Checking for long long... Yes." | tee -a configure.log
cat > $test.c <<EOF
#include <stdio.h>
int main(void) {
if (sizeof(void *) <= sizeof(int)) puts("int");
else if (sizeof(void *) <= sizeof(long)) puts("long");
else puts("z_longlong");
return 0;
}
EOF
else
echo "Checking for long long... No." | tee -a configure.log
cat > $test.c <<EOF
#include <stdio.h>
int main(void) {
if (sizeof(void *) <= sizeof(int)) puts("int");
else puts("long");
return 0;
}
EOF
fi
if try $CC $CFLAGS -o $test $test.c; then
sizet=`./$test`
echo "Checking for a pointer-size integer type..." $sizet"." | tee -a configure.log
CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}"
SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}"
else
echo "Checking for a pointer-size integer type... not found." | tee -a configure.log
fi
fi
echo >> configure.log
2012-04-01 19:46:37 +04:00
# check for large file support, and if none, check for fseeko()
2011-09-10 10:25:38 +04:00
cat > $test.c <<EOF
#include <sys/types.h>
off64_t dummy = 0;
EOF
if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
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CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
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ALL="${ALL} all64"
TEST="${TEST} test64"
echo "Checking for off64_t... Yes." | tee -a configure.log
echo "Checking for fseeko... Yes." | tee -a configure.log
2011-09-10 10:23:01 +04:00
else
echo "Checking for off64_t... No." | tee -a configure.log
echo >> configure.log
2011-09-10 10:26:29 +04:00
cat > $test.c <<EOF
#include <stdio.h>
int main(void) {
fseeko(NULL, 0, 0);
return 0;
}
EOF
if try $CC $CFLAGS -o $test $test.c; then
echo "Checking for fseeko... Yes." | tee -a configure.log
2011-09-10 10:26:29 +04:00
else
CFLAGS="${CFLAGS} -DNO_FSEEKO"
SFLAGS="${SFLAGS} -DNO_FSEEKO"
echo "Checking for fseeko... No." | tee -a configure.log
2011-09-10 10:26:29 +04:00
fi
2011-09-10 10:14:39 +04:00
fi
2011-09-10 10:17:33 +04:00
echo >> configure.log
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# check for strerror() for use by gz* functions
cat > $test.c <<EOF
#include <string.h>
#include <errno.h>
int main() { return strlen(strerror(errno)); }
EOF
if try $CC $CFLAGS -o $test $test.c; then
echo "Checking for strerror... Yes." | tee -a configure.log
else
CFLAGS="${CFLAGS} -DNO_STRERROR"
SFLAGS="${SFLAGS} -DNO_STRERROR"
echo "Checking for strerror... No." | tee -a configure.log
fi
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# copy clean zconf.h for subsequent edits
cp -p ${SRCDIR}zconf.h.in zconf.h
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echo >> configure.log
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# check for unistd.h and save result in zconf.h
2011-09-10 10:20:29 +04:00
cat > $test.c <<EOF
#include <unistd.h>
int main() { return 0; }
EOF
if try $CC -c $CFLAGS $test.c; then
2011-09-10 10:27:26 +04:00
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
echo "Checking for unistd.h... Yes." | tee -a configure.log
2011-09-10 10:20:29 +04:00
else
echo "Checking for unistd.h... No." | tee -a configure.log
2011-09-10 10:17:33 +04:00
fi
echo >> configure.log
2012-04-01 19:46:37 +04:00
# check for stdarg.h and save result in zconf.h
2011-09-11 22:04:49 +04:00
cat > $test.c <<EOF
#include <stdarg.h>
int main() { return 0; }
EOF
if try $CC -c $CFLAGS $test.c; then
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sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
mv zconf.temp.h zconf.h
echo "Checking for stdarg.h... Yes." | tee -a configure.log
2011-09-11 22:04:49 +04:00
else
echo "Checking for stdarg.h... No." | tee -a configure.log
2011-09-11 22:04:49 +04:00
fi
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# if the z_ prefix was requested, save that in zconf.h
2011-09-10 10:25:27 +04:00
if test $zprefix -eq 1; then
2011-09-10 10:27:26 +04:00
sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
2011-09-10 10:25:27 +04:00
mv zconf.temp.h zconf.h
echo >> configure.log
echo "Using z_ prefix on all symbols." | tee -a configure.log
2011-09-10 10:25:27 +04:00
fi
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# if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists
if test $solo -eq 1; then
sed '/#define ZCONF_H/a\
#define Z_SOLO
' < zconf.h > zconf.temp.h
mv zconf.temp.h zconf.h
OBJC='$(OBJZ)'
PIC_OBJC='$(PIC_OBJZ)'
fi
2012-04-01 19:46:37 +04:00
# if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X
if test $cover -eq 1; then
CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
if test -n "$GCC_CLASSIC"; then
CC=$GCC_CLASSIC
fi
fi
echo >> configure.log
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# conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions
# (using stdarg or not), with or without "n" (proving size of buffer), and with or without a
# return value. The most secure result is vsnprintf() with a return value. snprintf() with a
# return value is secure as well, but then gzprintf() will be limited to 20 arguments.
2011-09-10 10:20:29 +04:00
cat > $test.c <<EOF
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#include <stdio.h>
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#include <stdarg.h>
#include "zconf.h"
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int main()
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{
#ifndef STDC
choke me
#endif
return 0;
}
EOF
if try $CC -c $CFLAGS $test.c; then
echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log
2011-09-10 10:21:47 +04:00
echo >> configure.log
2011-09-10 10:21:47 +04:00
cat > $test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
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int mytest(const char *fmt, ...)
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{
char buf[20];
va_list ap;
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
return 0;
}
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
if try $CC $CFLAGS -o $test $test.c; then
echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log
2011-09-10 10:21:47 +04:00
echo >> configure.log
2011-09-10 10:21:47 +04:00
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
2011-09-10 10:27:26 +04:00
int mytest(const char *fmt, ...)
2011-09-10 10:21:47 +04:00
{
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int n;
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char buf[20];
va_list ap;
va_start(ap, fmt);
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n = vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
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return n;
2011-09-10 10:21:47 +04:00
}
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
if try $CC -c $CFLAGS $test.c; then
echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log
2011-09-10 10:21:47 +04:00
else
CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
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SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
echo "Checking for return value of vsnprintf()... No." | tee -a configure.log
echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log
echo " can build but will be open to possible string-format security" | tee -a configure.log
echo " vulnerabilities." | tee -a configure.log
2011-09-10 10:21:47 +04:00
fi
else
CFLAGS="$CFLAGS -DNO_vsnprintf"
2011-09-10 10:26:40 +04:00
SFLAGS="$SFLAGS -DNO_vsnprintf"
echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log
echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log
echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
echo " vulnerabilities." | tee -a configure.log
2011-09-10 10:21:47 +04:00
echo >> configure.log
2011-09-10 10:21:47 +04:00
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
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int mytest(const char *fmt, ...)
2011-09-10 10:21:47 +04:00
{
2011-09-10 10:23:14 +04:00
int n;
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char buf[20];
va_list ap;
va_start(ap, fmt);
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n = vsprintf(buf, fmt, ap);
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va_end(ap);
2011-09-10 10:23:14 +04:00
return n;
2011-09-10 10:21:47 +04:00
}
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int main()
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{
return (mytest("Hello%d\n", 1));
}
EOF
if try $CC -c $CFLAGS $test.c; then
echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log
2011-09-10 10:21:47 +04:00
else
CFLAGS="$CFLAGS -DHAS_vsprintf_void"
2011-09-10 10:26:40 +04:00
SFLAGS="$SFLAGS -DHAS_vsprintf_void"
echo "Checking for return value of vsprintf()... No." | tee -a configure.log
echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log
echo " can build but will be open to possible string-format security" | tee -a configure.log
echo " vulnerabilities." | tee -a configure.log
2011-09-10 10:21:47 +04:00
fi
fi
else
echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log
2011-09-10 10:21:47 +04:00
echo >> configure.log
2011-09-10 10:21:47 +04:00
cat >$test.c <<EOF
#include <stdio.h>
2011-09-10 10:22:37 +04:00
int mytest()
2011-09-10 10:21:47 +04:00
{
char buf[20];
snprintf(buf, sizeof(buf), "%s", "foo");
return 0;
}
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int main()
2011-09-10 10:21:47 +04:00
{
return (mytest());
}
EOF
if try $CC $CFLAGS -o $test $test.c; then
echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log
2011-09-10 10:21:47 +04:00
echo >> configure.log
2011-09-10 10:21:47 +04:00
cat >$test.c <<EOF
#include <stdio.h>
2011-09-10 10:23:14 +04:00
int mytest()
2011-09-10 10:21:47 +04:00
{
char buf[20];
2011-09-10 10:23:14 +04:00
return snprintf(buf, sizeof(buf), "%s", "foo");
2011-09-10 10:21:47 +04:00
}
2011-09-10 10:22:37 +04:00
int main()
2011-09-10 10:21:47 +04:00
{
return (mytest());
}
EOF
if try $CC -c $CFLAGS $test.c; then
echo "Checking for return value of snprintf()... Yes." | tee -a configure.log
2011-09-10 10:21:47 +04:00
else
CFLAGS="$CFLAGS -DHAS_snprintf_void"
2011-09-10 10:26:40 +04:00
SFLAGS="$SFLAGS -DHAS_snprintf_void"
echo "Checking for return value of snprintf()... No." | tee -a configure.log
echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log
echo " can build but will be open to possible string-format security" | tee -a configure.log
echo " vulnerabilities." | tee -a configure.log
2011-09-10 10:21:47 +04:00
fi
else
CFLAGS="$CFLAGS -DNO_snprintf"
2011-09-10 10:26:40 +04:00
SFLAGS="$SFLAGS -DNO_snprintf"
echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log
echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log
echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
echo " vulnerabilities." | tee -a configure.log
2011-09-10 10:21:47 +04:00
echo >> configure.log
2011-09-10 10:21:47 +04:00
cat >$test.c <<EOF
#include <stdio.h>
2011-09-10 10:23:14 +04:00
int mytest()
2011-09-10 10:21:47 +04:00
{
char buf[20];
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return sprintf(buf, "%s", "foo");
2011-09-10 10:21:47 +04:00
}
2011-09-10 10:22:37 +04:00
int main()
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{
return (mytest());
}
EOF
if try $CC -c $CFLAGS $test.c; then
echo "Checking for return value of sprintf()... Yes." | tee -a configure.log
2011-09-10 10:21:47 +04:00
else
CFLAGS="$CFLAGS -DHAS_sprintf_void"
2011-09-10 10:26:40 +04:00
SFLAGS="$SFLAGS -DHAS_sprintf_void"
echo "Checking for return value of sprintf()... No." | tee -a configure.log
echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log
echo " can build but will be open to possible string-format security" | tee -a configure.log
echo " vulnerabilities." | tee -a configure.log
2011-09-10 10:21:47 +04:00
fi
fi
fi
2012-04-01 19:46:37 +04:00
# see if we can hide zlib internal symbols that are linked between separate source files
2011-09-10 10:34:55 +04:00
if test "$gcc" -eq 1; then
echo >> configure.log
2011-09-10 10:34:55 +04:00
cat > $test.c <<EOF
#define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
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int ZLIB_INTERNAL foo;
2011-09-10 10:34:45 +04:00
int main()
{
return 0;
}
EOF
if tryboth $CC -c $CFLAGS $test.c; then
CFLAGS="$CFLAGS -DHAVE_HIDDEN"
SFLAGS="$SFLAGS -DHAVE_HIDDEN"
echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log
2011-09-10 10:34:55 +04:00
else
echo "Checking for attribute(visibility) support... No." | tee -a configure.log
2011-09-10 10:34:55 +04:00
fi
2011-09-10 10:34:45 +04:00
fi
# show the results in the log
echo >> configure.log
echo ALL = $ALL >> configure.log
echo AR = $AR >> configure.log
echo ARFLAGS = $ARFLAGS >> configure.log
echo CC = $CC >> configure.log
echo CFLAGS = $CFLAGS >> configure.log
echo CPP = $CPP >> configure.log
echo EXE = $EXE >> configure.log
echo LDCONFIG = $LDCONFIG >> configure.log
echo LDFLAGS = $LDFLAGS >> configure.log
echo LDSHARED = $LDSHARED >> configure.log
echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
echo OBJC = $OBJC >> configure.log
echo PIC_OBJC = $PIC_OBJC >> configure.log
echo RANLIB = $RANLIB >> configure.log
echo SFLAGS = $SFLAGS >> configure.log
echo SHAREDLIB = $SHAREDLIB >> configure.log
echo SHAREDLIBM = $SHAREDLIBM >> configure.log
echo SHAREDLIBV = $SHAREDLIBV >> configure.log
echo STATICLIB = $STATICLIB >> configure.log
echo TEST = $TEST >> configure.log
echo VER = $VER >> configure.log
echo SRCDIR = $SRCDIR >> configure.log
echo exec_prefix = $exec_prefix >> configure.log
echo includedir = $includedir >> configure.log
echo libdir = $libdir >> configure.log
echo mandir = $mandir >> configure.log
echo prefix = $prefix >> configure.log
echo sharedlibdir = $sharedlibdir >> configure.log
echo uname = $uname >> configure.log
2023-02-02 17:50:00 +03:00
# update Makefile with the configure results
sed < ${SRCDIR}Makefile.in "
2011-09-10 10:23:01 +04:00
/^CC *=/s#=.*#=$CC#
/^CFLAGS *=/s#=.*#=$CFLAGS#
2011-09-10 10:25:38 +04:00
/^SFLAGS *=/s#=.*#=$SFLAGS#
2011-09-10 10:26:29 +04:00
/^LDFLAGS *=/s#=.*#=$LDFLAGS#
2011-09-10 10:23:01 +04:00
/^LDSHARED *=/s#=.*#=$LDSHARED#
2011-09-10 10:26:29 +04:00
/^CPP *=/s#=.*#=$CPP#
2011-09-10 10:26:40 +04:00
/^STATICLIB *=/s#=.*#=$STATICLIB#
2011-09-10 10:23:01 +04:00
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
/^AR *=/s#=.*#=$AR#
/^ARFLAGS *=/s#=.*#=$ARFLAGS#
2011-09-10 10:23:01 +04:00
/^RANLIB *=/s#=.*#=$RANLIB#
2011-09-10 10:34:22 +04:00
/^LDCONFIG *=/s#=.*#=$LDCONFIG#
/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
2011-09-10 10:23:14 +04:00
/^EXE *=/s#=.*#=$EXE#
/^SRCDIR *=/s#=.*#=$SRCDIR#
/^ZINC *=/s#=.*#=$ZINC#
/^ZINCOUT *=/s#=.*#=$ZINCOUT#
2011-09-10 10:23:01 +04:00
/^prefix *=/s#=.*#=$prefix#
/^exec_prefix *=/s#=.*#=$exec_prefix#
/^libdir *=/s#=.*#=$libdir#
2011-09-10 10:34:45 +04:00
/^sharedlibdir *=/s#=.*#=$sharedlibdir#
2011-09-10 10:23:01 +04:00
/^includedir *=/s#=.*#=$includedir#
/^mandir *=/s#=.*#=$mandir#
/^OBJC *=/s#=.*#= $OBJC#
/^PIC_OBJC *=/s#=.*#= $PIC_OBJC#
2011-09-10 10:26:29 +04:00
/^all: */s#:.*#: $ALL#
/^test: */s#:.*#: $TEST#
2011-09-10 10:14:39 +04:00
" > Makefile
2011-09-10 10:25:27 +04:00
2012-04-01 19:46:37 +04:00
# create zlib.pc with the configure results
sed < ${SRCDIR}zlib.pc.in "
2011-09-10 10:25:27 +04:00
/^CC *=/s#=.*#=$CC#
/^CFLAGS *=/s#=.*#=$CFLAGS#
/^CPP *=/s#=.*#=$CPP#
/^LDSHARED *=/s#=.*#=$LDSHARED#
2011-09-10 10:26:40 +04:00
/^STATICLIB *=/s#=.*#=$STATICLIB#
2011-09-10 10:25:27 +04:00
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
/^AR *=/s#=.*#=$AR#
/^ARFLAGS *=/s#=.*#=$ARFLAGS#
2011-09-10 10:25:27 +04:00
/^RANLIB *=/s#=.*#=$RANLIB#
/^EXE *=/s#=.*#=$EXE#
/^prefix *=/s#=.*#=$prefix#
/^exec_prefix *=/s#=.*#=$exec_prefix#
/^libdir *=/s#=.*#=$libdir#
2011-09-10 10:34:45 +04:00
/^sharedlibdir *=/s#=.*#=$sharedlibdir#
2011-09-10 10:25:27 +04:00
/^includedir *=/s#=.*#=$includedir#
/^mandir *=/s#=.*#=$mandir#
/^LDFLAGS *=/s#=.*#=$LDFLAGS#
" | sed -e "
s/\@VERSION\@/$VER/g;
" > zlib.pc
# done
leave 0