:
#!/bin/sh -x
# The above : is necessary on some buggy systems.
# configure: Guess values for system-dependent variables
# Output the flag definitions to the file "flags".
# Parameters: $1 = $(CC), $2 = $(CFLAGS), $3 = $(IZ_BZIP2)
# To construct unzip automatically using this file, type
# "make -f unix/Makefile generic".
# If this fails, then type "make list" to get a list of special targets.
trap "rm -f conftest* core a.out; exit 1" 1 2 3 15
CC=${1-cc}
CFLAGS=${2}
CFLAGSR=${CFLAGS}
IZ_BZIP2=${3}
CFLAGS="${CFLAGS} -I. -DUNIX"
LFLAGS1=""
LFLAGS2="-s"
LN="ln -s"
CFLAGS_OPT=''
CFLAGS_BZ=''
BZLF=''
echo "Check C compiler operation"
cat > conftest.c << _EOF_
int main()
{
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c
status=$?
if test $status -ne 0; then
echo ''
echo "C compiler \"${CC}\" does not work as expected."
echo "Failing command was: $CC $CFLAGS -c conftest.c"
exit $status
else
echo ' Ok'
fi
echo 'Check C compiler type (optimization options)'
# Sun C?
cat > conftest.c << _EOF_
int main()
{
#ifndef __SUNPRO_C
bad code
#endif
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
if test $? -eq 0; then
CFLAGS_OPT='-xO3'
echo " Sun C ($CFLAGS_OPT)"
else
# Tru64 DEC/Compaq/HP C?
cat > conftest.c << _EOF_
int main()
{
#ifndef __DECC
bad code
#endif
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
if test $? -eq 0; then
CFLAGS_OPT='-O3'
echo " DEC C ($CFLAGS_OPT)"
else
# HP-UX HP C?
cat > conftest.c << _EOF_
int main()
{
#ifdef __GNUC__
bad code
#endif
#ifndef __hpux
bad code
#endif
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
if test $? -eq 0; then
# HP-UX, not GCC. Lame bundled or real ANSI compiler?
CFLAGS_OPT_TRY="+O3 +Onolimit"
$CC $CFLAGS $CFLAGS_OPT_TRY -c conftest.c 2>&1 | \
grep '(Bundled)' > /dev/null
if test $? -ne 0; then
CFLAGS_OPT="$CFLAGS_OPT_TRY"
echo " HP-UX ANSI C ($CFLAGS_OPT)"
else
echo ' HP-UX Bundled C (no opt)'
fi
else
# GNU C?
cat > conftest.c << _EOF_
int main()
{
#ifndef __GNUC__
bad code
#endif
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
if test $? -eq 0; then
CFLAGS_OPT='-O3'
echo " GNU C ($CFLAGS_OPT)"
# Special Mac OS X shared library "ld" option?
if test ` uname -s 2> /dev/null ` = 'Darwin'; then
lf='-Wl,-search_paths_first'
$CC $CFLAGS $lf conftest.c > /dev/null 2>/dev/null
if test $? -eq 0; then
BZLF=${lf}
fi
rm -f conftest
fi
else
CFLAGS_OPT='-O'
echo " Other-unknown C ($CFLAGS_OPT)"
fi
fi
fi
fi
# optimization flags
if test -n "${CFLAGS_OPT}"; then
CFLAGSR="${CFLAGSR} ${CFLAGS_OPT}"
CFLAGS_BZ="${CFLAGS_BZ} ${CFLAGS_OPT}"
fi
echo Check for the C preprocessor
# on SVR4, cc -E does not produce correct assembler files. Need /lib/cpp.
CPP="${CC} -E"
# solaris as(1) needs -P, maybe others as well ?
[ -f /usr/ccs/lib/cpp ] && CPP="/usr/ccs/lib/cpp -P"
[ -f /usr/lib/cpp ] && CPP=/usr/lib/cpp
[ -f /lib/cpp ] && CPP=/lib/cpp
[ -f /usr/bin/cpp ] && CPP=/usr/bin/cpp
[ -f /xenix ] && CPP="${CC} -E"
[ -f /lynx.os ] && CPP="${CC} -E"
echo "#include <stdio.h>" > conftest.c
$CPP conftest.c >/dev/null 2>/dev/null || CPP="${CC} -E"
echo Check if we can use asm code
CRC32OA=""
if eval "$CPP crc_i386.S > _crc_i386.s 2>/dev/null"; then
if test ! -s _crc_i386.s || grep error < _crc_i386.s > /dev/null; then
:
elif eval "$CC -c _crc_i386.s >/dev/null 2>/dev/null" && [ -f _crc_i386.o ]; then
CFLAGSR="${CFLAGSR} -DASM_CRC"
CRC32OA="crc_gcc.o"
echo "int foo() { return 0;}" > conftest.c
$CC -c conftest.c >/dev/null 2>/dev/null
echo Check if compiler generates underlines
nm conftest.o | grep "(^|[^_])foo" >/dev/null 2>/dev/null
[ $? -eq 0 ] && CPP="${CPP} -DNO_UNDERLINE"
fi
fi
rm -f _crc_i386.s _crc_i386.o
# ANSI options for compilers that don't have __STDC__ defined by default
# Currently HPUX, pyramid, Dynix, AIX, OSF/1 and ultrix
echo Check for ANSI options
cat > conftest.c << _EOF_
int main()
{
#ifndef __STDC__
forget it
#endif
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
if [ $? -ne 0 ]; then
for OPT in "-Aa -D_HPUX_SOURCE" -Xa -qlanglvl=ansi -std1 -std
do
$CC $CFLAGS $OPT -c conftest.c > /dev/null 2>/dev/null
[ $? -eq 0 ] && CFLAGSR="${CFLAGSR} ${OPT}" && break
done
fi
echo Check for prototypes
echo "int main(int argc, char *argv[]) { return 0; }" > conftest.c
$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_PROTO"
# const check currently handles mips cc and non ANSI compilers.
# does it need more ?
echo Check the handling of const
cat > conftest.c << _EOF_
typedef int charset[2];
int main()
{
const charset x;
const char *foo;
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_CONST"
echo Check for time_t
cat > conftest.c << _EOF_
#include <sys/types.h>
#include <time.h>
int main()
{
time_t t;
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_TIME_T"
echo Check for size_t
cat > conftest.c << _EOF_
#include <sys/types.h>
int main()
{
size_t s;
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_SIZE_T"
echo Check for off_t
cat > conftest.c << _EOF_
#include <sys/types.h>
int main()
{
off_t s;
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_OFF_T"
# Added 11/4/2003 EG
# Revised 8/12/04 EG
# Now we set the 64-bit file environment and check the size of off_t
echo Check for Large File Support
cat > conftest.c << _EOF_
# define _LARGEFILE_SOURCE /* some OSes need this for fseeko */
# define _LARGEFILE64_SOURCE
# define _FILE_OFFSET_BITS 64 /* select default interface as 64 bit */
# define _LARGE_FILES /* some OSes need this for 64-bit off_t */
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
int main()
{
off_t offset;
struct stat s;
/* see if have 64-bit off_t */
if (sizeof(offset) < 8)
return 1;
printf(" off_t is %d bytes\n", sizeof(off_t));
/* see if have 64-bit stat */
if (sizeof(s.st_size) < 8) {
printf(" s.st_size is %d bytes\n", sizeof(s.st_size));
return 2;
}
return 3;
}
_EOF_
# compile it
$CC -o conftest conftest.c >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
echo -- no Large File Support
else
# run it
./conftest
r=$?
if [ $r -eq 1 ]; then
echo -- no Large File Support - no 64-bit off_t
elif [ $r -eq 2 ]; then
echo -- no Large File Support - no 64-bit stat
elif [ $r -eq 3 ]; then
echo -- yes we have Large File Support!
CFLAGSR="${CFLAGSR} -DLARGE_FILE_SUPPORT"
else
echo -- no Large File Support - conftest returned $r
fi
fi
# Added 11/24/2005 EG
# Check for wide char for Unicode support
echo Check for wide char support
cat > conftest.c << _EOF_
#include <stdlib.h>
#include <stdio.h>
#include <wchar.h>
int main()
{
size_t wsize;
wchar_t *wide_string;
if ((wide_string = (wchar_t *)malloc(4 * sizeof(wchar_t))) == NULL) {
return 0;
}
/* get wide string */
wsize = mbstowcs(wide_string, "foo", 3);
wide_string[wsize] = (wchar_t) NULL;
#ifndef __STDC_ISO_10646__
return 1;
#else
printf(" __STDC_ISO_10646__ = %d\n", __STDC_ISO_10646__);
return 2;
#endif
}
_EOF_
# compile it
$CC -o conftest conftest.c >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
echo "-- no Unicode (wchar_t) support"
else
# have wide char support
# run it
./conftest
r=$?
if [ $r -eq 0 ]; then
echo -- no Unicode wchar_t support - wchar_t allocation error
elif [ $r -eq 1 ]; then
echo -- no Unicode support - wchar_t encoding unspecified
elif [ $r -eq 2 ]; then
echo -- have wchar_t with known UCS encoding - enabling Unicode support!
CFLAGSR="${CFLAGSR} -DUNICODE_SUPPORT -DUNICODE_WCHAR"
else
echo "-- no Unicode (wchar_t) support - conftest returned $r"
fi
fi
echo "Check for setlocale support (needed for UNICODE Native check)"
cat > conftest.c << _EOF_
#include <locale.h>
int main()
{
char *loc = setlocale(LC_CTYPE, "");
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c >/dev/null 2>/dev/null
if [ $? -eq 0 ]; then
echo "-- have setlocale, can check for charset type"
echo "-- - enabling UTF8-native support!"
CFLAGSR="${CFLAGSR} -DUNICODE_SUPPORT -DUTF8_MAYBE_NATIVE"
else
echo "-- no Unicode (UTF-8 native) support!"
CFLAGSR="${CFLAGSR} -DNO_SETLOCALE"
fi
# from configure 2.4i (Onno) 12/5/04
echo Check for gcc no-builtin flag
# -fno-builtin since version 2
cat > conftest.c << _EOF_
int main()
{
#if __GNUC__ >= 2
return 0;
#else
forget it
#endif
}
_EOF_
$CC $CFLAGS -c conftest.c >/dev/null 2>/dev/null
[ $? -eq 0 ] && BFLAG="-fno-builtin"
# Check for missing functions
# add NO_'function_name' to flags if missing
for func in fchmod fchown lchown nl_langinfo
do
echo Check for $func
echo "int main(){ $func(); return 0; }" > conftest.c
$CC $BFLAG -o conftest conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_`echo $func | tr '[a-z]' '[A-Z]'`"
done
# Check (seriously) for a working lchmod.
echo 'Check for lchmod'
temp_file="/tmp/unzip_test_$$"
temp_link="link_$$"
( echo '#include <unistd.h>' ; \
echo "int main() { lchmod(\"${temp_file}\", 0666); }" \
) > conftest.c
ln -s "${temp_link}" "${temp_file}" && \
$CC $BFLAG -o conftest conftest.c >/dev/null 2>/dev/null && \
./conftest
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_LCHMOD"
rm -f "${temp_file}"
echo Check for memset
echo "int main(){ char k; memset(&k,0,0); return 0; }" > conftest.c
$CC -o conftest conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DZMEM"
echo Check for errno declaration
cat > conftest.c << _EOF_
#include <errno.h>
main()
{
errno = 0;
return 0;
}
_EOF_
$CC $CFLAGS -c conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_ERRNO"
echo Check for directory libraries
cat > conftest.c << _EOF_
int main() { return closedir(opendir(".")); }
_EOF_
$CC -o conftest conftest.c >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
OPT=""
for lib in ndir dir ucb bsd BSD PW x dirent
do
$CC -o conftest conftest.c -l$lib >/dev/null 2>/dev/null
[ $? -eq 0 ] && OPT=-l$lib && break
done
if [ ${OPT} ]; then
LFLAGS2="${LFLAGS2} ${OPT}"
else
CFLAGSR="${CFLAGSR} -DNO_DIR"
fi
fi
# Dynix/ptx 1.3 needed this
echo Check for readlink
echo "int main(){ return readlink(); }" > conftest.c
$CC -o conftest conftest.c >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
$CC -o conftest conftest.c -lseq >/dev/null 2>/dev/null
[ $? -eq 0 ] && LFLAGS2="${LFLAGS2} -lseq"
fi
echo Check for directory include file
OPT=""
for inc in dirent.h sys/ndir.h ndir.h sys/dir.h
do
echo "#include <$inc>" > conftest.c
$CPP conftest.c > /dev/null 2>/dev/null
[ $? -eq 0 ] && OPT="-DHAVE_`echo $inc | tr '[a-z]./' '[A-Z]__'`" && break
done
CFLAGSR="${CFLAGSR} ${OPT}"
echo Check for non existent include files
for inc in stdlib.h stddef.h unistd.h fcntl.h string.h langinfo.h
do
echo "#include <$inc>" > conftest.c
$CPP conftest.c >/dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_`echo $inc | tr '[a-z]./' '[A-Z]__'`"
done
echo Check for term I/O include file
OPT=""
for inc in termios.h termio.h sgtty.h
do
echo "#include <$inc>" > conftest.c
$CPP conftest.c > /dev/null 2>/dev/null
[ $? -eq 0 ] && OPT="-DHAVE_`echo $inc | tr '[a-z]./' '[A-Z]__'`" && break
done
CFLAGSR="${CFLAGSR} ${OPT}"
echo Check for MBCS include files
OPT=""
for inc in mbstring.h mbctype.h
do
echo "#include <$inc>" > conftest.c
$CPP conftest.c > /dev/null 2>/dev/null
[ $? -eq 0 ] && OPT="-DHAVE_`echo $inc | tr '[a-z]./' '[A-Z]__'`" && break
done
CFLAGSR="${CFLAGSR} ${OPT}"
# Check for MBCS support
echo Check for MBCS support
cat > conftest.c << _EOF_
#include <stdlib.h>
#include <stdio.h>
#include <wchar.h>
#ifdef HAVE_MBSTRING_H
# include <mbstring.h>
#endif
int main()
{
char *tst;
tst = "Hallo";
return mblen(tst, MB_CUR_MAX);
}
_EOF_
# compile it
$CC ${CFLAGS} ${CFLAGSR} -o conftest conftest.c >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
echo "-- no MBCS support"
CFLAGSR="${CFLAGSR} -DNO_MBCS"
else
#
echo "-- have MBCS support"
CFLAGSR="${CFLAGSR} -D_MBCS"
# check for library-supplied functions
# add FUNCTION_NAME='function_name' to flags if found
for func in mbschr mbsrchr
do
echo Check for MBCS $func
echo "int main() { $func(); return 0; }" > conftest.c
$CC $BFLAG -o conftest conftest.c >/dev/null 2>/dev/null
[ $? -eq 0 ] && CFLAGSR="${CFLAGSR} -D`echo $func | tr '[a-z]' '[A-Z]'`=$func"
done
fi
# needed for AIX (and others ?) when mmap is used
echo Check for valloc
cat > conftest.c << _EOF_
main()
{
#ifdef MMAP
valloc();
#endif
}
_EOF_
$CC ${CFLAGS} -c conftest.c > /dev/null 2>/dev/null
[ $? -ne 0 ] && CFLAGSR="${CFLAGSR} -DNO_VALLOC"
echo Check for /usr/local/bin and /usr/local/man
BINDIR=$HOME/bin
[ -d /usr/local/bin ] && BINDIR=/usr/local/bin
MANDIR=manl
[ -d /usr/man/manl ] && MANDIR=/usr/man/manl
[ -d /usr/local/man/manl ] && MANDIR=/usr/local/man/manl
[ -d /usr/local/man/man1 ] && MANDIR=/usr/local/man/man1
echo Checking for OS specialties
if [ -f /usr/bin/hostinfo ]; then
if /usr/bin/hostinfo | grep NeXT > /dev/null; then
CFLAGSR="${CFLAGSR} -posix"
LFLAGS1="${LFLAGS1} -posix -object"
fi
# XXX ATT6300, Cray
elif [ -f /xenix ]; then
if uname -p | grep 286 > /dev/null; then
CFLAGSR="${CFLAGSR} -LARGE -Mel2 -DMEDIUM_MEM -DWSIZE=16384 -DNO_VOID"
LFLAGS1="${LFLAGS1} -LARGE -Mel2"
fi
elif uname -X >/dev/null 2>/dev/null; then
# SCO shared library check
echo "int main() { return 0;}" > conftest.c
$CC -o conftest conftest.c -lc_s -nointl >/dev/null 2> /dev/null
[ $? -eq 0 ] && LFLAGS2="-lc_s -nointl"
else
SYSTEM=`uname -s 2>/dev/null` || SYSTEM="unknown"
echo "int main() { return 0;}" > conftest.c
case $SYSTEM in
OSF1|ULTRIX)
echo Check for -Olimit option
$CC ${CFLAGS} -Olimit 1000 -o conftest conftest.c >/dev/null 2>/dev/null
[ $? -eq 0 ] && CFLAGSR="${CFLAGSR} -Olimit 1000"
;;
### HP-UX)
### echo Check for +Onolimit option
### $CC ${CFLAGS} +Onolimit -o conftest conftest.c >/dev/null 2>/dev/null
### [ $? -eq 0 ] && CFLAGSR="${CFLAGSR} +Onolimit"
### ;;
### SunOS)
### CFLAGSR="${CFLAGSR} -D_FILE_OFFSET_BITS=64"
### ;;
esac
fi
echo Check for symbolic links
ln -s /dev/null null > /dev/null 2>/dev/null || LN=ln
rm -f a.out conftest.c conftest.o conftest null
# bzip2
echo "Check bzip2 support"
D_USE_BZ2=""
LIBBZ2=""
L_BZ2=""
CC_BZ="${CC}"
if test -n "${IZ_BZIP2}" -a "${IZ_BZIP2}" != "bzip2" ; then
echo " Check for bzip2 compiled library in IZ_BZIP2 (${IZ_BZIP2})"
if test -f "${IZ_BZIP2}/libbz2.a"; then
#
# A bzip2 library built with BZ_NO_STDIO should have an
# unresolved external, "bz_internal_error". The default,
# full-function library will not mention it.
#
nm ${IZ_BZIP2}/libbz2.a | grep bz_internal_error > /dev/null
if test $? -eq 0; then
echo " Found bzip2 BZ_NO_STDIO library, ${IZ_BZIP2}/libbz2.a"
if test -f "${IZ_BZIP2}/bzlib.h"; then
LIBBZ2="${IZ_BZIP2}/libbz2.a"
D_USE_BZ2="-DUSE_BZIP2"
L_BZ2="${BZLF} -lbz2"
echo "-- Found bzip2 library - linking in bzip2"
else
echo " ${IZ_BZIP2}/bzlib.h not found"
echo "-- Since IZ_BZIP2 defined (!= \"bzip2\"),"
echo "-- => skipping OS and bzip2 dir checks."
echo "-- NO bzip2 support !"
fi
else
echo " Found bzip2 library, ${IZ_BZIP2}/libbz2.a,"
echo " but library not compiled with BZ_NO_STDIO."
echo " ERROR: This (default) variant of bzip2 library is NOT"
echo " supported with UnZip because of its incompatible"
echo " error handling!"
echo " Please see the UnZip installation instructions in"
echo " the INSTALL text file."
echo " Skipping bzip2 support..."
fi
else
echo " ${IZ_BZIP2}/libbz2.a not found"
echo "-- Since IZ_BZIP2 defined (!= \"bzip2\"),"
echo "-- => skipping OS and bzip2 dir checks."
echo "-- NO bzip2 support !"
fi
else
echo " Check for bzip2 sources in unzip's bzip2 subdirectory"
if test -f "${IZ_BZIP2}/bzlib.c" -a -f "${IZ_BZIP2}/bzlib.h"; then
echo "-- Found bzip2 source in ${IZ_BZIP2}/ directory"
echo "-- Will try to build bzip2 library from source and link in"
LIBBZ2="${IZ_BZIP2}/libbz2.a"
D_USE_BZ2="-DUSE_BZIP2"
L_BZ2="${BZLF} -lbz2"
else
echo "-- bzip2 sources not found - no bzip2 support"
fi
fi
echo CC=\"${CC}\" CF=\"${CFLAGSR} ${D_USE_BZ2}\" CRCA_O=\"${CRC32OA}\" \
AS=\"${CC} -c\" LFLAGS1=\"${LFLAGS1}\" LF2=\"${LFLAGS2}\" \
CC_BZ=\"${CC_BZ}\" CFLAGS_BZ=\"${CFLAGS_BZ}\" \
IZ_BZIP2=\"${IZ_BZIP2}\" D_USE_BZ2=\"${D_USE_BZ2}\" \
L_BZ2=\"${L_BZ2}\" LIBBZ2=\"${LIBBZ2}\" > flags