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-rwxr-xr-xcompat/zlib/configure500
1 files changed, 361 insertions, 139 deletions
diff --git a/compat/zlib/configure b/compat/zlib/configure
index bd9edd2..36c7d8e 100755
--- a/compat/zlib/configure
+++ b/compat/zlib/configure
@@ -13,39 +13,52 @@
# 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/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/')"
+ uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`"
CROSS_PREFIX="${CHOST}-"
fi
+# destination name for static library
STATICLIB=libz.a
-LDFLAGS="${LDFLAGS} -L. ${STATICLIB}"
+
+# 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 ${AR}
+ test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
else
AR=${AR-"ar"}
- test -n "${CROSS_PREFIX}" && echo Using ${AR}
+ test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
fi
-AR_RC="${AR} rc"
+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 ${RANLIB}
+ test -n "${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 ${NM}
+ test -n "${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-'${exec_prefix}/lib'}
@@ -54,20 +67,25 @@ includedir=${includedir-'${prefix}/include'}
mandir=${mandir-'${prefix}/share/man'}
shared_ext='.so'
shared=1
+solo=0
+cover=0
zprefix=0
build64=0
gcc=0
old_cc="$CC"
old_cflags="$CFLAGS"
+OBJC='$(OBJZ) $(OBJG)'
+PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
+# process command line options
while test $# -ge 1
do
case "$1" in
-h* | --help)
- echo 'usage:'
- echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]'
- echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]'
- echo ' [--includedir=INCLUDEDIR]'
+ echo 'usage:' | tee -a configure.log
+ echo ' configure [--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 ;;
@@ -81,32 +99,93 @@ case "$1" in
-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 ;;
- --sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;;
- --localstatedir=*) echo "ignored option: --localstatedir"; shift ;;
- *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;;
+ -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 ;;
+ *) echo "unknown option: $1"; echo "$0 --help for help" | tee -a configure.log; exit 1 ;;
esac
done
+# define functions for testing compiler and library characteristics and logging the results
test=ztest$$
+
+show()
+{
+ case "$*" in
+ *$test.c*)
+ echo === $test.c === >> configure.log
+ cat $test.c >> configure.log
+ echo === >> configure.log;;
+ esac
+ echo $* >> configure.log
+}
+
+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" = ""
+}
+
+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 ${CROSS_PREFIX}gcc...
+test -z "$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
-if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
+show $cc -c $cflags $test.c
+if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
+ echo ... using gcc >> configure.log
CC="$cc"
+ CFLAGS="${CFLAGS--O3} ${ARCHS}"
SFLAGS="${CFLAGS--O3} -fPIC"
- CFLAGS="${CFLAGS--O3}"
+ LDFLAGS="${LDFLAGS} ${ARCHS}"
if test $build64 -eq 1; then
CFLAGS="${CFLAGS} -m64"
SFLAGS="${SFLAGS} -m64"
@@ -118,13 +197,17 @@ if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
uname=`(uname -s || echo unknown) 2>/dev/null`
fi
case "$uname" in
- Linux* | linux* | GNU | GNU/* | *BSD | DragonFly) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
+ 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*)
+ MINGW* | mingw*)
# temporary bypass
rm -f $test.[co] $test $test$shared_ext
- echo "Please use win32/Makefile.gcc instead."
+ echo "Please use win32/Makefile.gcc instead." | tee -a configure.log
exit 1
LDSHARED=${LDSHARED-"$cc -shared"}
LDSHAREDLIBC=""
@@ -142,17 +225,21 @@ if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
shared_ext='.sl'
SHAREDLIB='libz.sl' ;;
esac ;;
- Darwin*) shared_ext='.dylib'
+ Darwin* | darwin*)
+ shared_ext='.dylib'
SHAREDLIB=libz$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 $VER3"} ;;
+ LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
+ AR="/usr/bin/libtool"
+ ARFLAGS="-o" ;;
*) LDSHARED=${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
@@ -183,19 +270,34 @@ else
CFLAGS=${CFLAGS-"-4 -O"}
LDSHARED=${LDSHARED-"cc"}
RANLIB=${RANLIB-"true"}
- AR_RC="cc -A" ;;
+ AR="cc"
+ ARFLAGS="-A" ;;
SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
CFLAGS=${CFLAGS-"-O3"}
LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
- SunOS\ 5*) LDSHARED=${LDSHARED-"cc -G"}
- case `(uname -m || echo unknown) 2>/dev/null` in
- i86*)
- SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."}
- CFLAGS=${CFLAGS-"-xpentium -fast"} ;;
- *)
- SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."}
- CFLAGS=${CFLAGS-"-fast -xcg92"} ;;
- esac ;;
+ SunOS\ 5* | solaris*)
+ LDSHARED=${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"} ;;
@@ -225,25 +327,25 @@ else
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
+
+# see if shared library build supported
if test $shared -eq 1; then
- echo Checking for shared library support...
+ echo Checking for shared library support... | tee -a configure.log
# we must test in two steps (cc then ld), required at least on SunOS 4.x
- if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" &&
- test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then
- echo Building shared library $SHAREDLIBV with $CC.
+ 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.
+ echo No shared library support. | tee -a configure.log
shared=0;
else
- echo Tested $CC -w -c $SFLAGS $test.c
- $CC -w -c $SFLAGS $test.c
- echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o
- $LDSHARED $SFLAGS -o $test$shared_ext $test.o
- echo 'No shared library support; try without defining CC and CFLAGS'
+ echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log
shared=0;
fi
fi
@@ -254,25 +356,45 @@ if test $shared -eq 0; then
SHAREDLIB=""
SHAREDLIBV=""
SHAREDLIBM=""
- echo Building static library $STATICLIB version $VER with $CC.
+ echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log
else
ALL="static shared"
TEST="all teststatic testshared"
fi
+echo >> configure.log
+
+# check for underscores in external names for use by assembler code
+CPP=${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 > $test.c <<EOF
#include <sys/types.h>
off64_t dummy = 0;
EOF
-if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then
+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."
- echo "Checking for fseeko... Yes."
+ 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."
+ echo "Checking for off64_t... No." | tee -a configure.log
+ echo >> configure.log
cat > $test.c <<EOF
#include <stdio.h>
int main(void) {
@@ -280,272 +402,367 @@ int main(void) {
return 0;
}
EOF
- if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
- echo "Checking for fseeko... Yes."
+ 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."
+ 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 > $test.c <<EOF
#include <unistd.h>
int main() { return 0; }
EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
+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."
+ echo "Checking for unistd.h... Yes." | tee -a configure.log
else
- echo "Checking for unistd.h... No."
+ 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 "Using z_ prefix on all symbols."
+ 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 $test.c; then
+ echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()."
-
+ 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 $test.c; then
+ echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log
- if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
- echo "Checking for vsnprintf() in stdio.h... Yes."
-
+ echo >> configure.log
cat >$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 test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of vsnprintf()... Yes."
+ 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="$SFLAGS -DHAS_vsnprintf_void"
- echo "Checking for return value of vsnprintf()... No."
- echo " WARNING: apparently vsnprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of vsnprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
else
CFLAGS="$CFLAGS -DNO_vsnprintf"
SFLAGS="$SFLAGS -DNO_vsnprintf"
- echo "Checking for vsnprintf() in stdio.h... No."
- echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
- echo " can build but will be open to possible buffer-overflow security"
- echo " vulnerabilities."
+ echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log
+ echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log
+ echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
+ echo >> configure.log
cat >$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 test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of vsprintf()... Yes."
+ 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="$SFLAGS -DHAS_vsprintf_void"
- echo "Checking for return value of vsprintf()... No."
- echo " WARNING: apparently vsprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of vsprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
fi
else
- echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()."
+ echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log
+ echo >> configure.log
cat >$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 test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
- echo "Checking for snprintf() in stdio.h... Yes."
+ 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 test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of snprintf()... Yes."
+ 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="$SFLAGS -DHAS_snprintf_void"
- echo "Checking for return value of snprintf()... No."
- echo " WARNING: apparently snprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of snprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
else
CFLAGS="$CFLAGS -DNO_snprintf"
SFLAGS="$SFLAGS -DNO_snprintf"
- echo "Checking for snprintf() in stdio.h... No."
- echo " WARNING: snprintf() not found, falling back to sprintf(). zlib"
- echo " can build but will be open to possible buffer-overflow security"
- echo " vulnerabilities."
+ echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log
+ echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log
+ echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
+ echo >> configure.log
cat >$test.c <<EOF
#include <stdio.h>
-
int mytest()
{
char buf[20];
-
return sprintf(buf, "%s", "foo");
}
-
int main()
{
return (mytest());
}
EOF
- if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of sprintf()... Yes."
+ 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="$SFLAGS -DHAS_sprintf_void"
- echo "Checking for return value of sprintf()... No."
- echo " WARNING: apparently sprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of sprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
fi
fi
+# see if we can hide zlib internal symbols that are linked between separate source files
if test "$gcc" -eq 1; then
+ echo >> configure.log
cat > $test.c <<EOF
-#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
-# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
-#else
-# define ZLIB_INTERNAL
-#endif
+#define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
int ZLIB_INTERNAL foo;
int main()
{
return 0;
}
EOF
- if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for attribute(visibility) support... Yes."
+ if tryboth $CC -c $CFLAGS $test.c; then
+ CFLAGS="$CFLAGS -DHAVE_HIDDEN"
+ SFLAGS="$SFLAGS -DHAVE_HIDDEN"
+ echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log
else
- CFLAGS="$CFLAGS -DNO_VIZ"
- SFLAGS="$SFLAGS -DNO_VIZ"
- echo "Checking for attribute(visibility) support... No."
+ echo "Checking for attribute(visibility) support... No." | tee -a configure.log
fi
fi
-CPP=${CPP-"$CC -E"}
-case $CFLAGS in
- *ASMV*)
- if test "`$NM $test.o | grep _hello`" = ""; then
- CPP="$CPP -DNO_UNDERLINE"
- echo Checking for underline in external names... No.
- else
- echo Checking for underline in external names... Yes.
- fi ;;
-esac
+echo >> configure.log
-rm -f $test.[co] $test $test$shared_ext
+# find a four-byte unsiged integer type for crc calculations
+cat > $test.c <<EOF
+#include <stdio.h>
+#define is32(n,t) for(n=1,k=0;n;n<<=1,k++);if(k==32){puts(t);return 0;}
+int main() {
+ int k;
+ unsigned i;
+ unsigned long l;
+ unsigned short s;
+ is32(i, "unsigned")
+ is32(l, "unsigned long")
+ is32(s, "unsigned short")
+ return 1;
+}
+EOF
+Z_U4=""
+if try $CC $CFLAGS $test.c -o $test && Z_U4=`./$test` && test -n "$Z_U4"; then
+ sed < zconf.h "/#define Z_U4/s/\/\* \.\/configure may/#define Z_U4 $Z_U4 \/* .\/configure put the/" > zconf.temp.h
+ mv zconf.temp.h zconf.h
+ echo "Looking for a four-byte integer type... Found." | tee -a configure.log
+else
+ echo "Looking for a four-byte integer type... Not found." | tee -a configure.log
+fi
-# udpate Makefile
+# clean up files produced by running the compiler and linker
+rm -f $test.[co] $test $test$shared_ext $test.gcno
+
+# 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 = $uname >> configure.log
+echo -------------------- >> configure.log
+echo >> configure.log
+echo >> configure.log
+
+# udpate Makefile with the configure results
sed < Makefile.in "
/^CC *=/s#=.*#=$CC#
/^CFLAGS *=/s#=.*#=$CFLAGS#
@@ -557,7 +774,8 @@ sed < Makefile.in "
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
-/^AR *=/s#=.*#=$AR_RC#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
/^RANLIB *=/s#=.*#=$RANLIB#
/^LDCONFIG *=/s#=.*#=$LDCONFIG#
/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
@@ -568,10 +786,13 @@ sed < Makefile.in "
/^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#=.*#=$CFLAGS#
@@ -581,7 +802,8 @@ sed < zlib.pc.in "
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
-/^AR *=/s#=.*#=$AR_RC#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
/^RANLIB *=/s#=.*#=$RANLIB#
/^EXE *=/s#=.*#=$EXE#
/^prefix *=/s#=.*#=$prefix#
generated by cgit v0.12 at 2024-11-08 21:14:33 (GMT)