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some vendors' cc(1) doesn't support -E from stdin like cpp(1)

This commit is contained in:
tg 2007-07-01 16:57:00 +00:00
parent 572119b454
commit f84505395a
1 changed files with 18 additions and 12 deletions
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30
Build.sh
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@ -1,5 +1,5 @@
#!/bin/sh
# $MirOS: src/bin/mksh/Build.sh,v 1.226 2007/07/01 16:47:05 tg Exp $
# $MirOS: src/bin/mksh/Build.sh,v 1.227 2007/07/01 16:57:00 tg Exp $
#-
# Environment used: CC CFLAGS CPPFLAGS LDFLAGS LIBS NOWARN NROFF TARGET_OS
# CPPFLAGS recognised: MKSH_SMALL MKSH_ASSUME_UTF8 MKSH_NEED_MKNOD MKSH_NOPWNAM
@ -192,7 +192,7 @@ if test -d mksh || test -d mksh.exe; then
exit 1
fi
rm -f a.exe a.out *core crypt.exp lft mksh mksh.cat1 mksh.exe no *.o \
scn.c signames.inc test.sh x
scn.c signames.inc test.sh x y
: ${CC=gcc} ${NROFF=nroff}
curdir=`pwd` srcdir=`dirname "$0"` check_categories=pdksh
@ -763,10 +763,10 @@ ac_cppflags
#
test 0 = $HAVE_SYS_SIGNAME && if ac_testinit cpp_dd '' \
'checking if the C Preprocessor supports -dD'; then
eval '( echo "#define foo bar" | v "$CC -dD -E - >x" ) 2>&'$h | \
sed 's/^/] /'
echo '#define foo bar' >scn.c
eval 'v "$CC -dD -E scn.c >x" 2>&'$h | sed 's/^/] /'
grep '#define foo bar' x >/dev/null 2>&1 && fv=1
rm -f x
rm -f scn.c x
ac_testdone
fi
@ -789,9 +789,14 @@ if test 0 = $HAVE_SYS_SIGNAME; then
$e No list of signal names available via cpp. Falling back...
fi
sigseen=:
NSIG=`( echo '#include <signal.h>'; echo '#ifndef NSIG'; \
echo '#define NSIG _NSIG'; echo '#endif'; echo mksh_cfg: NSIG ) | \
vq "$CC $CPPFLAGS -E -" | grep mksh_cfg: | \
cat >scn.c <<-'EOF'
#include <signal.h>
#ifndef NSIG
#define NSIG _NSIG
#endif
mksh_cfg: NSIG
EOF
NSIG=`vq "$CC $CPPFLAGS -E scn.c" | grep mksh_cfg: | \
sed 's/^mksh_cfg:[ ]*\([0-9x ()+-]*\).*$/\1/'`
case $NSIG in
*[\ \(\)+-]*) NSIG=`awk "BEGIN { print $NSIG }"` ;;
@ -799,8 +804,7 @@ if test 0 = $HAVE_SYS_SIGNAME; then
NSIG=`printf %d "$NSIG" 2>/dev/null`
test $h = 1 && printf "NSIG=$NSIG ... "
if test 1 = $HAVE_CPP_DD && test $NSIG -gt 1; then
signames=`echo '#include <signal.h>' | \
vq "$CC $CPPFLAGS -dD -E -" | \
signames=`vq "$CC $CPPFLAGS -dD -E scn.c" | \
grep '[ ]SIG[A-Z0-9]*[ ]' | \
sed 's/^\(.*[ ]SIG\)\([A-Z0-9]*\)\([ ].*\)$/\2/' | \
sort`
@ -811,8 +815,9 @@ if test 0 = $HAVE_SYS_SIGNAME; then
fi
test $NSIG -gt 1 || signames=
for name in $signames; do
( echo '#include <signal.h>'; echo mksh_cfg: SIG$name ) | \
vq "$CC $CPPFLAGS -E -" | grep mksh_cfg: | \
echo '#include <signal.h>' >scn.c
echo mksh_cfg: SIG$name >>scn.c
vq "$CC $CPPFLAGS -E scn.c" | grep mksh_cfg: | \
sed 's/^mksh_cfg:[ ]*\([0-9x]*\).*$/\1:'$name/
done | grep -v '^:' | while IFS=: read nr name; do
nr=`printf %d "$nr" 2>/dev/null`
@ -825,6 +830,7 @@ if test 0 = $HAVE_SYS_SIGNAME; then
;;
esac
done 2>&1 >signames.inc
rm -f scn.c
$e done.
fi