JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

2005-03-17 Jeff Johnston <jjohnstn@redhat.com>

Browse Source 
* configure.in: Add new check to see if compiler supports
        aliasing of arrays and define _HAVE_ARRAY_ALIASING if true.
        * configure: Regenerated.
        * Makefile.in: Ditto.
        * newlib.hin: Add _HAVE_ARRAY_ALIASING.
        * libc/ctype/ctype_.c: Check for _HAVE_ARRAY_ALIASING before
        aliasing the _ctype_ array to _ctype_b.
        * libc/include/ctype.h: Change macros to use __ctype_ptr.  Mark
        _ctype_ as deprecated.
This commit is contained in:
Jeff Johnston
2005-03-17 20:11:23 +00:00
parent 993317d0ed
commit dd801fdabd
7 changed files with 106 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
newlib/configure vendored
View File

@ -3459,6 +3459,34 @@ EOF
fi
echo $ac_n "checking for array aliasing support""... $ac_c" 1>&6
echo "configure:3464: checking for array aliasing support" >&5
if eval "test \"`echo '$''{'libc_cv_array_aliasing'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
char x3 = { 'a', 'b', 'c' };
extern char y2 __attribute__((alias ("x+1")));
EOF
if { ac_try='${CC} $CFLAGS $CPPFLAGS -c conftest.c
1>&AS_MESSAGE_LOG_FD'; { (eval echo configure:3473: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
then
libc_cv_array_aliasing=yes
else
libc_cv_array_aliasing=no
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_array_aliasing" 1>&6
if test $libc_cv_array_aliasing = yes; then
cat >> confdefs.h <<EOF
#define _HAVE_ARRAY_ALIASING 1
EOF
fi
trap '' 1 2 15
cat > confcache <<\EOF
# This file is a shell script that caches the results of configure
@ -3676,6 +3704,7 @@ s%@UNIX_OBJECTLIST@%$UNIX_OBJECTLIST%g
s%@STDIO64_OBJECTLIST@%$STDIO64_OBJECTLIST%g
s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
s%@libc_cv_initfinit_array@%$libc_cv_initfinit_array%g
s%@libc_cv_array_aliasing@%$libc_cv_array_aliasing%g
CEOF
EOF