#!/bin/sh | |
# configure script for zlib. | |
# | |
# Normally configure builds both a static and a shared library. | |
# If you want to build just a static library, use: ./configure --static | |
# | |
# 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) | |
# 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. | |
# start off configure.log | |
echo -------------------- >> configure.log | |
echo $0 $* >> configure.log | |
date >> configure.log | |
# set command prefix for cross-compilation | |
if [ -n "${CHOST}" ]; then | |
uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`" | |
CROSS_PREFIX="${CHOST}-" | |
fi | |
# destination name for static library | |
STATICLIB=libz.a | |
# extract zlib version numbers from zlib.h | |
VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` | |
VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` | |
VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` | |
VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` | |
# establish commands for library building | |
if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then | |
AR=${AR-"${CROSS_PREFIX}ar"} | |
test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log | |
else | |
AR=${AR-"ar"} | |
test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log | |
fi | |
ARFLAGS=${ARFLAGS-"rc"} | |
if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then | |
RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} | |
test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log | |
else | |
RANLIB=${RANLIB-"ranlib"} | |
fi | |
if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then | |
NM=${NM-"${CROSS_PREFIX}nm"} | |
test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log | |
else | |
NM=${NM-"nm"} | |
fi | |
# set defaults before processing command line options | |
LDCONFIG=${LDCONFIG-"ldconfig"} | |
LDSHAREDLIBC="${LDSHAREDLIBC--lc}" | |
ARCHS= | |
prefix=${prefix-/usr/local} | |
exec_prefix=${exec_prefix-'${prefix}'} | |
libdir=${libdir-'${exec_prefix}/lib'} | |
sharedlibdir=${sharedlibdir-'${libdir}'} | |
includedir=${includedir-'${prefix}/include'} | |
mandir=${mandir-'${prefix}/share/man'} | |
shared_ext='.so' | |
shared=1 | |
solo=0 | |
cover=0 | |
zprefix=0 | |
zconst=0 | |
build64=0 | |
gcc=0 | |
old_cc="$CC" | |
old_cflags="$CFLAGS" | |
OBJC='$(OBJZ) $(OBJG)' | |
PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)' | |
# leave this script, optionally in a bad way | |
leave() | |
{ | |
if test "$*" != "0"; then | |
echo "** $0 aborting." | tee -a configure.log | |
fi | |
rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version | |
echo -------------------- >> configure.log | |
echo >> configure.log | |
echo >> configure.log | |
exit $1 | |
} | |
# process command line options | |
while test $# -ge 1 | |
do | |
case "$1" in | |
-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 | |
exit 0 ;; | |
-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 ;; | |
--sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;; | |
-i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;; | |
-u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;; | |
-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 ;; | |
-z* | --zprefix) zprefix=1; shift ;; | |
-6* | --64) build64=1; shift ;; | |
-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 ;; | |
*) | |
echo "unknown option: $1" | tee -a configure.log | |
echo "$0 --help for help" | tee -a configure.log | |
leave 1;; | |
esac | |
done | |
# temporary file name | |
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 | |
} | |
# check for gcc vs. cc and set compile and link flags based on the system identified by uname | |
cat > $test.c <<EOF | |
extern int getchar(); | |
int hello() {return getchar();} | |
EOF | |
test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log | |
cc=${CC-${CROSS_PREFIX}gcc} | |
cflags=${CFLAGS-"-O3"} | |
# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure | |
case "$cc" in | |
*gcc*) gcc=1 ;; | |
*clang*) gcc=1 ;; | |
esac | |
case `$cc -v 2>&1` in | |
*gcc*) gcc=1 ;; | |
esac | |
show $cc -c $test.c | |
if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then | |
echo ... using gcc >> configure.log | |
CC="$cc" | |
CFLAGS="${CFLAGS--O3} ${ARCHS}" | |
SFLAGS="${CFLAGS--O3} -fPIC" | |
LDFLAGS="${LDFLAGS} ${ARCHS}" | |
if test $build64 -eq 1; then | |
CFLAGS="${CFLAGS} -m64" | |
SFLAGS="${SFLAGS} -m64" | |
fi | |
if test "${ZLIBGCCWARN}" = "YES"; then | |
if test "$zconst" -eq 1; then | |
CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST" | |
else | |
CFLAGS="${CFLAGS} -Wall -Wextra -pedantic" | |
fi | |
fi | |
if test -z "$uname"; then | |
uname=`(uname -s || echo unknown) 2>/dev/null` | |
fi | |
case "$uname" in | |
Linux* | linux* | GNU | GNU/* | solaris*) | |
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;; | |
*BSD | *bsd* | DragonFly) | |
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} | |
LDCONFIG="ldconfig -m" ;; | |
CYGWIN* | Cygwin* | cygwin* | OS/2*) | |
EXE='.exe' ;; | |
MINGW* | mingw*) | |
# temporary bypass | |
rm -f $test.[co] $test $test$shared_ext | |
echo "Please use win32/Makefile.gcc instead." | tee -a configure.log | |
leave 1 | |
LDSHARED=${LDSHARED-"$cc -shared"} | |
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"} ;; | |
HP-UX*) | |
LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} | |
case `(uname -m || echo unknown) 2>/dev/null` in | |
ia64) | |
shared_ext='.so' | |
SHAREDLIB='libz.so' ;; | |
*) | |
shared_ext='.sl' | |
SHAREDLIB='libz.sl' ;; | |
esac ;; | |
Darwin* | darwin*) | |
shared_ext='.dylib' | |
SHAREDLIB=libz$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 $VER3"} | |
if libtool -V 2>&1 | grep Apple > /dev/null; then | |
AR="libtool" | |
else | |
AR="/usr/bin/libtool" | |
fi | |
ARFLAGS="-o" ;; | |
*) LDSHARED=${LDSHARED-"$cc -shared"} ;; | |
esac | |
else | |
# find system name and corresponding cc options | |
CC=${CC-cc} | |
gcc=0 | |
echo ... using $CC >> configure.log | |
if test -z "$uname"; then | |
uname=`(uname -sr || echo unknown) 2>/dev/null` | |
fi | |
case "$uname" in | |
HP-UX*) SFLAGS=${CFLAGS-"-O +z"} | |
CFLAGS=${CFLAGS-"-O"} | |
# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} | |
LDSHARED=${LDSHARED-"ld -b"} | |
case `(uname -m || echo unknown) 2>/dev/null` in | |
ia64) | |
shared_ext='.so' | |
SHAREDLIB='libz.so' ;; | |
*) | |
shared_ext='.sl' | |
SHAREDLIB='libz.sl' ;; | |
esac ;; | |
IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} | |
CFLAGS=${CFLAGS-"-ansi -O2"} | |
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; | |
OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} | |
CFLAGS=${CFLAGS-"-O -std1"} | |
LDFLAGS="${LDFLAGS} -Wl,-rpath,." | |
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; | |
OSF1*) SFLAGS=${CFLAGS-"-O -std1"} | |
CFLAGS=${CFLAGS-"-O -std1"} | |
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; | |
QNX*) SFLAGS=${CFLAGS-"-4 -O"} | |
CFLAGS=${CFLAGS-"-4 -O"} | |
LDSHARED=${LDSHARED-"cc"} | |
RANLIB=${RANLIB-"true"} | |
AR="cc" | |
ARFLAGS="-A" ;; | |
SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} | |
CFLAGS=${CFLAGS-"-O3"} | |
LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; | |
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="$CFLAGS -xarch=v9" ;; | |
esac | |
fi | |
fi | |
;; | |
SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} | |
CFLAGS=${CFLAGS-"-O2"} | |
LDSHARED=${LDSHARED-"ld"} ;; | |
SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} | |
CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} | |
LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; | |
UNIX_System_V\ 4.2.0) | |
SFLAGS=${CFLAGS-"-KPIC -O"} | |
CFLAGS=${CFLAGS-"-O"} | |
LDSHARED=${LDSHARED-"cc -G"} ;; | |
UNIX_SV\ 4.2MP) | |
SFLAGS=${CFLAGS-"-Kconform_pic -O"} | |
CFLAGS=${CFLAGS-"-O"} | |
LDSHARED=${LDSHARED-"cc -G"} ;; | |
OpenUNIX\ 5) | |
SFLAGS=${CFLAGS-"-KPIC -O"} | |
CFLAGS=${CFLAGS-"-O"} | |
LDSHARED=${LDSHARED-"cc -G"} ;; | |
AIX*) # Courtesy of dbakker@arrayasolutions.com | |
SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} | |
CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} | |
LDSHARED=${LDSHARED-"xlc -G"} ;; | |
# send working options for other systems to zlib@gzip.org | |
*) SFLAGS=${CFLAGS-"-O"} | |
CFLAGS=${CFLAGS-"-O"} | |
LDSHARED=${LDSHARED-"cc -shared"} ;; | |
esac | |
fi | |
# destination names for shared library if not defined above | |
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 $* | |
( $* ) >> configure.log 2>&1 | |
ret=$? | |
if test $ret -ne 0; then | |
echo "(exit code "$ret")" >> configure.log | |
fi | |
return $ret | |
} | |
fi | |
tryboth() | |
{ | |
show $* | |
got=`( $* ) 2>&1` | |
ret=$? | |
printf %s "$got" >> configure.log | |
if test $ret -ne 0; then | |
return $ret | |
fi | |
test "$got" = "" | |
} | |
cat > $test.c << EOF | |
int foo() { return 0; } | |
EOF | |
echo "Checking for obsessive-compulsive compiler options..." >> configure.log | |
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 | |
# see if shared library build supported | |
cat > $test.c <<EOF | |
extern int getchar(); | |
int hello() {return getchar();} | |
EOF | |
if test $shared -eq 1; then | |
echo Checking for shared library support... | tee -a configure.log | |
# 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 $CC. | tee -a configure.log | |
elif test -z "$old_cc" -a -z "$old_cflags"; then | |
echo No shared library support. | tee -a configure.log | |
shared=0; | |
else | |
echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log | |
shared=0; | |
fi | |
fi | |
if test $shared -eq 0; then | |
LDSHARED="$CC" | |
ALL="static" | |
TEST="all teststatic" | |
SHAREDLIB="" | |
SHAREDLIBV="" | |
SHAREDLIBM="" | |
echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log | |
else | |
ALL="static shared" | |
TEST="all teststatic testshared" | |
fi | |
# check for underscores in external names for use by assembler code | |
CPP=${CPP-"$CC -E"} | |
case $CFLAGS in | |
*ASMV*) | |
echo >> configure.log | |
show "$NM $test.o | grep _hello" | |
if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then | |
CPP="$CPP -DNO_UNDERLINE" | |
echo Checking for underline in external names... No. | tee -a configure.log | |
else | |
echo Checking for underline in external names... Yes. | tee -a configure.log | |
fi ;; | |
esac | |
echo >> configure.log | |
# check for large file support, and if none, check for fseeko() | |
cat > $test.c <<EOF | |
#include <sys/types.h> | |
off64_t dummy = 0; | |
EOF | |
if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then | |
CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" | |
SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" | |
ALL="${ALL} all64" | |
TEST="${TEST} test64" | |
echo "Checking for off64_t... Yes." | tee -a configure.log | |
echo "Checking for fseeko... Yes." | tee -a configure.log | |
else | |
echo "Checking for off64_t... No." | tee -a configure.log | |
echo >> configure.log | |
cat > $test.c <<EOF | |
#include <stdio.h> | |
int main(void) { | |
fseeko(NULL, 0, 0); | |
return 0; | |
} | |
EOF | |
if try $CC $CFLAGS -o $test $test.c; then | |
echo "Checking for fseeko... Yes." | tee -a configure.log | |
else | |
CFLAGS="${CFLAGS} -DNO_FSEEKO" | |
SFLAGS="${SFLAGS} -DNO_FSEEKO" | |
echo "Checking for fseeko... No." | tee -a configure.log | |
fi | |
fi | |
echo >> configure.log | |
# 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 | |
# copy clean zconf.h for subsequent edits | |
cp -p zconf.h.in zconf.h | |
echo >> configure.log | |
# check for unistd.h and save result in zconf.h | |
cat > $test.c <<EOF | |
#include <unistd.h> | |
int main() { return 0; } | |
EOF | |
if try $CC -c $CFLAGS $test.c; then | |
sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h | |
mv zconf.temp.h zconf.h | |
echo "Checking for unistd.h... Yes." | tee -a configure.log | |
else | |
echo "Checking for unistd.h... No." | tee -a configure.log | |
fi | |
echo >> configure.log | |
# check for stdarg.h and save result in zconf.h | |
cat > $test.c <<EOF | |
#include <stdarg.h> | |
int main() { return 0; } | |
EOF | |
if try $CC -c $CFLAGS $test.c; then | |
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 | |
else | |
echo "Checking for stdarg.h... No." | tee -a configure.log | |
fi | |
# if the z_ prefix was requested, save that in zconf.h | |
if test $zprefix -eq 1; then | |
sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h | |
mv zconf.temp.h zconf.h | |
echo >> configure.log | |
echo "Using z_ prefix on all symbols." | tee -a configure.log | |
fi | |
# 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 | |
# 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 | |
# 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. | |
cat > $test.c <<EOF | |
#include <stdio.h> | |
#include <stdarg.h> | |
#include "zconf.h" | |
int main() | |
{ | |
#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 | |
echo >> configure.log | |
cat > $test.c <<EOF | |
#include <stdio.h> | |
#include <stdarg.h> | |
int mytest(const char *fmt, ...) | |
{ | |
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 $test.c; then | |
echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log | |
echo >> configure.log | |
cat >$test.c <<EOF | |
#include <stdio.h> | |
#include <stdarg.h> | |
int mytest(const char *fmt, ...) | |
{ | |
int n; | |
char buf[20]; | |
va_list ap; | |
va_start(ap, fmt); | |
n = vsnprintf(buf, sizeof(buf), fmt, ap); | |
va_end(ap); | |
return n; | |
} | |
int main() | |
{ | |
return (mytest("Hello%d\n", 1)); | |
} | |
EOF | |
if try $CC -c $CFLAGS $test.c; then | |
echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log | |
else | |
CFLAGS="$CFLAGS -DHAS_vsnprintf_void" | |
SFLAGS="$SFLAGS -DHAS_vsnprintf_void" | |
echo "Checking for return value of vsnprintf()... No." | tee -a configure.log | |
echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log | |
echo " can build but will be open to possible string-format security" | tee -a configure.log | |
echo " vulnerabilities." | tee -a configure.log | |
fi | |
else | |
CFLAGS="$CFLAGS -DNO_vsnprintf" | |
SFLAGS="$SFLAGS -DNO_vsnprintf" | |
echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log | |
echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log | |
echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log | |
echo " vulnerabilities." | tee -a configure.log | |
echo >> configure.log | |
cat >$test.c <<EOF | |
#include <stdio.h> | |
#include <stdarg.h> | |
int mytest(const char *fmt, ...) | |
{ | |
int n; | |
char buf[20]; | |
va_list ap; | |
va_start(ap, fmt); | |
n = vsprintf(buf, fmt, ap); | |
va_end(ap); | |
return n; | |
} | |
int main() | |
{ | |
return (mytest("Hello%d\n", 1)); | |
} | |
EOF | |
if try $CC -c $CFLAGS $test.c; then | |
echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log | |
else | |
CFLAGS="$CFLAGS -DHAS_vsprintf_void" | |
SFLAGS="$SFLAGS -DHAS_vsprintf_void" | |
echo "Checking for return value of vsprintf()... No." | tee -a configure.log | |
echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log | |
echo " can build but will be open to possible string-format security" | tee -a configure.log | |
echo " vulnerabilities." | tee -a configure.log | |
fi | |
fi | |
else | |
echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log | |
echo >> configure.log | |
cat >$test.c <<EOF | |
#include <stdio.h> | |
int mytest() | |
{ | |
char buf[20]; | |
snprintf(buf, sizeof(buf), "%s", "foo"); | |
return 0; | |
} | |
int main() | |
{ | |
return (mytest()); | |
} | |
EOF | |
if try $CC $CFLAGS -o $test $test.c; then | |
echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log | |
echo >> configure.log | |
cat >$test.c <<EOF | |
#include <stdio.h> | |
int mytest() | |
{ | |
char buf[20]; | |
return snprintf(buf, sizeof(buf), "%s", "foo"); | |
} | |
int main() | |
{ | |
return (mytest()); | |
} | |
EOF | |
if try $CC -c $CFLAGS $test.c; then | |
echo "Checking for return value of snprintf()... Yes." | tee -a configure.log | |
else | |
CFLAGS="$CFLAGS -DHAS_snprintf_void" | |
SFLAGS="$SFLAGS -DHAS_snprintf_void" | |
echo "Checking for return value of snprintf()... No." | tee -a configure.log | |
echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log | |
echo " can build but will be open to possible string-format security" | tee -a configure.log | |
echo " vulnerabilities." | tee -a configure.log | |
fi | |
else | |
CFLAGS="$CFLAGS -DNO_snprintf" | |
SFLAGS="$SFLAGS -DNO_snprintf" | |
echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log | |
echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log | |
echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log | |
echo " vulnerabilities." | tee -a configure.log | |
echo >> configure.log | |
cat >$test.c <<EOF | |
#include <stdio.h> | |
int mytest() | |
{ | |
char buf[20]; | |
return sprintf(buf, "%s", "foo"); | |
} | |
int main() | |
{ | |
return (mytest()); | |
} | |
EOF | |
if try $CC -c $CFLAGS $test.c; then | |
echo "Checking for return value of sprintf()... Yes." | tee -a configure.log | |
else | |
CFLAGS="$CFLAGS -DHAS_sprintf_void" | |
SFLAGS="$SFLAGS -DHAS_sprintf_void" | |
echo "Checking for return value of sprintf()... No." | tee -a configure.log | |
echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log | |
echo " can build but will be open to possible string-format security" | tee -a configure.log | |
echo " vulnerabilities." | tee -a configure.log | |
fi | |
fi | |
fi | |
# see if we can hide zlib internal symbols that are linked between separate source files | |
if test "$gcc" -eq 1; then | |
echo >> configure.log | |
cat > $test.c <<EOF | |
#define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) | |
int ZLIB_INTERNAL foo; | |
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 | |
else | |
echo "Checking for attribute(visibility) support... No." | tee -a configure.log | |
fi | |
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 Z_U4 = $Z_U4 >> 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 = $uname >> configure.log | |
# udpate Makefile with the configure results | |
sed < Makefile.in " | |
/^CC *=/s#=.*#=$CC# | |
/^CFLAGS *=/s#=.*#=$CFLAGS# | |
/^SFLAGS *=/s#=.*#=$SFLAGS# | |
/^LDFLAGS *=/s#=.*#=$LDFLAGS# | |
/^LDSHARED *=/s#=.*#=$LDSHARED# | |
/^CPP *=/s#=.*#=$CPP# | |
/^STATICLIB *=/s#=.*#=$STATICLIB# | |
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# | |
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# | |
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# | |
/^AR *=/s#=.*#=$AR# | |
/^ARFLAGS *=/s#=.*#=$ARFLAGS# | |
/^RANLIB *=/s#=.*#=$RANLIB# | |
/^LDCONFIG *=/s#=.*#=$LDCONFIG# | |
/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# | |
/^EXE *=/s#=.*#=$EXE# | |
/^prefix *=/s#=.*#=$prefix# | |
/^exec_prefix *=/s#=.*#=$exec_prefix# | |
/^libdir *=/s#=.*#=$libdir# | |
/^sharedlibdir *=/s#=.*#=$sharedlibdir# | |
/^includedir *=/s#=.*#=$includedir# | |
/^mandir *=/s#=.*#=$mandir# | |
/^OBJC *=/s#=.*#= $OBJC# | |
/^PIC_OBJC *=/s#=.*#= $PIC_OBJC# | |
/^all: */s#:.*#: $ALL# | |
/^test: */s#:.*#: $TEST# | |
" > Makefile | |
# create zlib.pc with the configure results | |
sed < zlib.pc.in " | |
/^CC *=/s#=.*#=$CC# | |
/^CFLAGS *=/s#=.*#=$CFLAGS# | |
/^CPP *=/s#=.*#=$CPP# | |
/^LDSHARED *=/s#=.*#=$LDSHARED# | |
/^STATICLIB *=/s#=.*#=$STATICLIB# | |
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# | |
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# | |
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# | |
/^AR *=/s#=.*#=$AR# | |
/^ARFLAGS *=/s#=.*#=$ARFLAGS# | |
/^RANLIB *=/s#=.*#=$RANLIB# | |
/^EXE *=/s#=.*#=$EXE# | |
/^prefix *=/s#=.*#=$prefix# | |
/^exec_prefix *=/s#=.*#=$exec_prefix# | |
/^libdir *=/s#=.*#=$libdir# | |
/^sharedlibdir *=/s#=.*#=$sharedlibdir# | |
/^includedir *=/s#=.*#=$includedir# | |
/^mandir *=/s#=.*#=$mandir# | |
/^LDFLAGS *=/s#=.*#=$LDFLAGS# | |
" | sed -e " | |
s/\@VERSION\@/$VER/g; | |
" > zlib.pc | |
# done | |
leave 0 |