diff options
Diffstat (limited to 'unix/configure')
| -rwxr-xr-x | unix/configure | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/unix/configure b/unix/configure new file mode 100755 index 0000000..35ccbb7 --- /dev/null +++ b/unix/configure @@ -0,0 +1,301 @@ +: +#!/bin/sh +# 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 = $CFLAGS +# To construct zip automatically using this file, type +# "make -f unix/Makefile generic". +# If this fails, then type "make list" to get a list of special targets. + +trap "rm -f conftest* core a.out; exit 1" 1 2 3 15 + +CC=${1-cc} +CFLAGS=${2-"-O2 -I. -DUNIX"} +LFLAGS1="" +LN="ln -s" + +echo Check for the C preprocessor +# on SVR4, cc -E does not produce correct assembler files. Need /lib/cpp. +CPP="${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 +OBJA="" +if eval "$CPP match.S > _match.s 2>/dev/null"; then + if test ! -s _match.s || grep error < _match.s > /dev/null; then + : + elif eval "$CC -c _match.s >/dev/null 2>/dev/null" && [ -f _match.o ]; then + CFLAGS="${CFLAGS} -DASMV" + OBJA="match.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" + if eval "$CPP crc_i386.S > _crc_i386.s 2>/dev/null"; then + if eval "$CC -c _crc_i386.s >/dev/null 2>/dev/null" && [ -f _crc_i386.o ] + then + OBJA="$OBJA crc_i386.o" + CFLAGS="${CFLAGS} -DASM_CRC" + fi + fi + fi +fi +rm -f _match.s _match.o _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 + [ $? -eq 0 ] && CFLAGS="${CFLAGS} ${OPT}" && break + done +fi + +echo Check for prototypes +echo "int main(int argc, char *argv[]) { return 0; }" > conftest.c +$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null +[ $? -ne 0 ] && CFLAGS="${CFLAGS} -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 +[ $? -ne 0 ] && CFLAGS="${CFLAGS} -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 +[ $? -ne 0 ] && CFLAGS="${CFLAGS} -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 +[ $? -ne 0 ] && CFLAGS="${CFLAGS} -DNO_SIZE_T" + +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 rmdir strchr strrchr rename mktemp mktime mkstemp +do + echo Check for $func + echo "int main(){ $func(); return 0; }" > conftest.c + $CC $BFLAG -o conftest conftest.c >/dev/null 2>/dev/null + [ $? -ne 0 ] && CFLAGS="${CFLAGS} -DNO_`echo $func | tr '[a-z]' '[A-Z]'`" +done + +echo Check for memset +echo "int main(){ char k; memset(&k,0,0); return 0; }" > conftest.c +$CC -o conftest conftest.c >/dev/null 2>/dev/null +[ $? -ne 0 ] && CFLAGS="${CFLAGS} -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 +[ $? -ne 0 ] && CFLAGS="${CFLAGS} -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} ${OPT}" + else + CFLAGS="${CFLAGS} -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 $inc | tr '[a-z]./' '[A-Z]__'`" && break +done +CFLAGS="${CFLAGS} ${OPT}" + +echo Check for non existent include files +for inc in stdlib.h stddef.h unistd.h fcntl.h string.h +do + echo "#include <$inc>" > conftest.c + $CPP conftest.c >/dev/null 2>/dev/null + [ $? -ne 0 ] && CFLAGS="${CFLAGS} -DNO_`echo $inc | tr '[a-z]./' '[A-Z]__'`" +done + +echo Check for terminal I/O include file +OPT="" +for inc in termios.h termio.h sgtty.h +do + echo "#include <$inc>" > conftest.c + $CPP conftest.c > /dev/null 2>/dev/null + [ $? -eq 0 ] && OPT="-DHAVE_`echo $inc | tr '[a-z]./' '[A-Z]__'`" && break +done +CFLAGS="${CFLAGS} ${OPT}" + +# needed for AIX (and others ?) when mmap is used +echo Check for valloc +cat > conftest.c << _EOF_ +main() +{ +#ifdef MMAP + valloc(); +#endif +} +_EOF_ +$CC ${CFLAGS} conftest.c > /dev/null 2>/dev/null +[ $? -ne 0 ] && CFLAGS="${CFLAGS} -DNO_VALLOC" + +echo Check for 64bit fseek +for func in fseeko fseek64 +do +cat > conftest.c << _EOF_ +#include <stdio.h> +main() +{ +$func(stdin, 0, 0); +} +_EOF_ +$CC ${CFLAGS} conftest.c > /dev/null 2>/dev/null +[ $? -eq 0 ] && OPT="-DHAVE_`echo $func | tr '[a-z]' '[A-Z]'`" && break +done +CFLAGS="${CFLAGS} ${OPT}" + +echo Check for /usr/local/bin and /usr/local/man +BINDIR=$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 Check for OS-specific flags +if [ -f /usr/bin/hostinfo ]; then + if /usr/bin/hostinfo | grep NeXT > /dev/null; then + CFLAGS="${CFLAGS} -posix" + LFLAGS1="${LFLAGS1} -posix -object" + fi +# XXX ATT6300, Cray +elif [ -f /xenix ]; then + if uname -p | grep 286 > /dev/null; then + CFLAGS="${CFLAGS} -LARGE -Mel2 -DMEDIUM_MEM -DWSIZE=16384 -DNO_VOID" + LFLAGS1="${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 + [ $? -eq 0 ] && CFLAGS="${CFLAGS} -Olimit 1000" + ;; + HP-UX) + echo Check for +Onolimit option + $CC ${CFLAGS} +Onolimit -o conftest conftest.c >/dev/null 2>/dev/null + [ $? -eq 0 ] && CFLAGS="${CFLAGS} +Onolimit" + ;; + 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 + +echo CC=\"${CC}\" CFLAGS=\"${CFLAGS}\" CPP=\"${CPP}\" OBJA=\"${OBJA}\" \ + BINDIR=${BINDIR} MANDIR=${MANDIR} LFLAGS1=\"${LFLAGS1}\" \ + LFLAGS2=\"${LFLAGS2}\" LN=\"${LN}\" > flags |