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|
#!/bin/sh
set -e
PATH=/bin:/usr/bin:$PATH; export PATH
trap "rm -f tmp$$a.c tmp$$b.c tmp$$a.o tmp$$b.o" 0
target=port_ipv6
new=new_${target}.h
old=${target}.h
cat > tmp$$a.c <<EOF
#include <sys/types.h>
#include <netinet/in.h>
struct sockaddr_in6 xx;
EOF
cat > tmp$$b.c <<EOF
#include <sys/types.h>
#include <netinet/in.h>
struct in6_addr xx;
EOF
cat > ${new} <<EOF
/* This file is automatically generated. Do Not Edit. */
#ifndef ${target}_h
#define ${target}_h
EOF
if ${CC} -c tmp$$a.c > /dev/null 2>&1
then
echo "#define HAS_INET6_STRUCTS" >> ${new}
if ${CC} -c tmp$$b.c > /dev/null 2>&1
then
:
else
echo "#define in6_addr in_addr6" >> ${new}
fi
else
echo "#undef HAS_INET6_STRUCTS" >> ${new}
fi
echo >> ${new}
echo "#endif" >> ${new}
if [ -f ${old} ]; then
if cmp -s ${new} ${old} ; then
rm -f ${new}
else
rm -f ${old}
mv ${new} ${old}
fi
else
mv ${new} ${old}
fi
exit 0
|
