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detect gcc cpp via test program to select xform --keep-lines

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svn: r14048
This commit is contained in:
Matthew Flatt 2009-03-11 03:00:07 +00:00
parent 5269b2a05a
commit 9a900d5100
2 changed files with 74 additions and 2 deletions
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60
src/configure vendored
View File

@ -4190,7 +4190,6 @@ fi
# If using gcc, we want all warnings:
if test "$CC" = "gcc" ; then
COMPFLAGS="$COMPFLAGS -Wall"
XFORMFLAGS="$XFORMFLAGS --keep-lines"
# Use -MMD when we have gcc and gnumake:
is_gmake=`make -v no-such-target-we-hope 2>&1 | grep "GNU Make"`
@ -6043,6 +6042,65 @@ fi
{ echo "$as_me:$LINENO: result: $inline" >&5
echo "${ECHO_T}$inline" >&6; }
msg="for GNU preprocessor"
{ echo "$as_me:$LINENO: checking $msg" >&5
echo $ECHO_N "checking $msg... $ECHO_C" >&6; }
if test "$cross_compiling" = yes; then
using_gnu_cpp=no
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
int main () {
#ifdef __GNUC__
return 0;
#else
return 1;
#endif
}
_ACEOF
rm -f conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_link") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } && { ac_try='./conftest$ac_exeext'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
using_gnu_cpp=yes
else
echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
( exit $ac_status )
using_gnu_cpp=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
if test "$using_gnu_cpp" = "yes" ; then
XFORMFLAGS="$XFORMFLAGS --keep-lines"
fi
{ echo "$as_me:$LINENO: result: $using_gnu_cpp" >&5
echo "${ECHO_T}$using_gnu_cpp" >&6; }
{ echo "$as_me:$LINENO: checking for nl_langinfo (CODESET)" >&5
echo $ECHO_N "checking for nl_langinfo (CODESET)... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF

16
src/mzscheme/configure.ac
View File

@ -419,7 +419,6 @@ fi
# If using gcc, we want all warnings:
if test "$CC" = "gcc" ; then
COMPFLAGS="$COMPFLAGS -Wall"
XFORMFLAGS="$XFORMFLAGS --keep-lines"
# Use -MMD when we have gcc and gnumake:
is_gmake=`make -v no-such-target-we-hope 2>&1 | grep "GNU Make"`
@ -729,6 +728,21 @@ if test "$inline" = "no" ; then
fi
AC_MSG_RESULT($inline)
[ msg="for GNU preprocessor" ]
AC_MSG_CHECKING($msg)
AC_TRY_RUN(
int main () {
#ifdef __GNUC__
return 0;
#else
return 1;
#endif
}, using_gnu_cpp=yes, using_gnu_cpp=no, using_gnu_cpp=no)
if test "$using_gnu_cpp" = "yes" ; then
XFORMFLAGS="$XFORMFLAGS --keep-lines"
fi
AC_MSG_RESULT($using_gnu_cpp)
AC_MSG_CHECKING([for nl_langinfo (CODESET)])
AC_TRY_LINK([#include <langinfo.h>],
[char *codeset = nl_langinfo (CODESET);],