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mksysinfo: Pick up TIOCGWINSZ even if expression is too complex. 

From-SVN: r183169
This commit is contained in:
Ian Lance Taylor 2012-01-13 23:17:20 +00:00
parent daeae9f196
commit dd1628807a
1 changed files with 16 additions and 0 deletions
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16
libgo/mksysinfo.sh
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@ -89,6 +89,15 @@ cat > sysinfo.c <<EOF
#if defined(HAVE_NET_IF_H)
#include <net/if.h>
#endif
/* Constants that may only be defined as expressions on some systems,
expressions too complex for -fdump-go-spec to handle. These are
handled specially below. */
enum {
#ifdef TIOCGWINSZ
TIOCGWINSZ_val = TIOCGWINSZ,
#endif
};
EOF
${CC} -fdump-go-spec=gen-sysinfo.go -std=gnu99 -S -o sysinfo.s sysinfo.c
@ -524,7 +533,14 @@ grep '^type _passwd ' gen-sysinfo.go | \
# The ioctl flags for the controlling TTY.
grep '^const _TIOC' gen-sysinfo.go | \
grep -v '_val =' | \
sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# We need TIOCGWINSZ.
if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCGWINSZ = TIOCGWINSZ_val' >> ${OUT}
fi
fi
# The ioctl flags for terminal control
grep '^const _TC[GS]ET' gen-sysinfo.go | \