Update.

2002-08-08  Alexandre Oliva  <aoliva@redhat.com>

	* configure.in: Make the test for broken_alias_attribute stricter.

3 files changed, 77 insertions, 65 deletions

diff --git a/ChangeLog b/ChangeLog
index 35bee5e..da4098e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2002-08-08  Alexandre Oliva  <aoliva@redhat.com>
+
+	* configure.in: Make the test for broken_alias_attribute stricter.
+
 2002-05-24  Robert Love  <rml@tech9.net>
 
 	* posix/Makefile (routines): Add sched_getaffinity and
diff --git a/configure b/configure
index e2c4014..4d33b8d 100755
--- a/configure
+++ b/configure
@@ -2861,11 +2861,15 @@ else
   cat > conftest.c <<EOF
 		  extern int foo (int x) __asm ("xyzzy");
 		  int bar (int x) { return x; }
-                  extern __typeof (bar) foo __attribute ((weak, alias ("bar")));
+		  extern __typeof (bar) foo __attribute ((weak, alias ("bar")));
+		  extern int dfoo;
+		  extern __typeof (dfoo) dfoo __asm ("abccb");
+		  int dfoo = 1;
 EOF
 		  libc_cv_broken_alias_attribute=yes
 		  if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
-		    if grep 'xyzzy' conftest.s >/dev/null; then
+		    if grep 'xyzzy' conftest.s >/dev/null &&
+		       grep 'abccb' conftest.s >/dev/null; then
 		      libc_cv_broken_alias_attribute=no
 		    fi
 		  fi
@@ -2883,7 +2887,7 @@ EOF
 
   if test $libc_cv_visibility_attribute = yes -a $gnu_ld = yes; then
     echo $ac_n "checking whether to put _rtld_local into .sdata section""... $ac_c" 1>&6
-echo "configure:2887: checking whether to put _rtld_local into .sdata section" >&5
+echo "configure:2891: checking whether to put _rtld_local into .sdata section" >&5
 if eval "test \"`echo '$''{'libc_cv_have_sdata_section'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2907,7 +2911,7 @@ EOF
   fi
 
   echo $ac_n "checking for .preinit_array/.init_array/.fini_array support""... $ac_c" 1>&6
-echo "configure:2911: checking for .preinit_array/.init_array/.fini_array support" >&5
+echo "configure:2915: checking for .preinit_array/.init_array/.fini_array support" >&5
 if eval "test \"`echo '$''{'libc_cv_initfinit_array'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2918,7 +2922,7 @@ int foo (void) { return 1; }
 int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
 EOF
   if { ac_try='${CC-cc} -o conftest conftest.c
-		     -static -nostartfiles -nostdlib 1>&5'; { (eval echo configure:2922: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+		     -static -nostartfiles -nostdlib 1>&5'; { (eval echo configure:2926: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
   then
     if readelf -S conftest | fgrep INIT_ARRAY > /dev/null; then
       libc_cv_initfinit_array=yes
@@ -2941,7 +2945,7 @@ EOF
   fi
 
   echo $ac_n "checking for -z nodelete option""... $ac_c" 1>&6
-echo "configure:2945: checking for -z nodelete option" >&5
+echo "configure:2949: checking for -z nodelete option" >&5
 if eval "test \"`echo '$''{'libc_cv_z_nodelete'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2950,7 +2954,7 @@ int _start (void) { return 42; }
 EOF
   if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
 		     -nostartfiles -nostdlib
-		     -Wl,--enable-new-dtags,-z,nodelete 1>&5'; { (eval echo configure:2954: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+		     -Wl,--enable-new-dtags,-z,nodelete 1>&5'; { (eval echo configure:2958: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
   then
     libc_cv_z_nodelete=yes
   else
@@ -2963,7 +2967,7 @@ echo "$ac_t""$libc_cv_z_nodelete" 1>&6
   
 
   echo $ac_n "checking for -z nodlopen option""... $ac_c" 1>&6
-echo "configure:2967: checking for -z nodlopen option" >&5
+echo "configure:2971: checking for -z nodlopen option" >&5
 if eval "test \"`echo '$''{'libc_cv_z_nodlopen'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2972,7 +2976,7 @@ int _start (void) { return 42; }
 EOF
   if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
 			-nostartfiles -nostdlib
-			-Wl,--enable-new-dtags,-z,nodlopen 1>&5'; { (eval echo configure:2976: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+			-Wl,--enable-new-dtags,-z,nodlopen 1>&5'; { (eval echo configure:2980: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
   then
     libc_cv_z_nodlopen=yes
   else
@@ -2985,7 +2989,7 @@ echo "$ac_t""$libc_cv_z_nodlopen" 1>&6
   
 
   echo $ac_n "checking for -z initfirst option""... $ac_c" 1>&6
-echo "configure:2989: checking for -z initfirst option" >&5
+echo "configure:2993: checking for -z initfirst option" >&5
 if eval "test \"`echo '$''{'libc_cv_z_initfirst'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2994,7 +2998,7 @@ int _start (void) { return 42; }
 EOF
   if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
 			-nostartfiles -nostdlib
-			-Wl,--enable-new-dtags,-z,initfirst 1>&5'; { (eval echo configure:2998: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+			-Wl,--enable-new-dtags,-z,initfirst 1>&5'; { (eval echo configure:3002: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
   then
     libc_cv_z_initfirst=yes
   else
@@ -3007,14 +3011,14 @@ echo "$ac_t""$libc_cv_z_initfirst" 1>&6
   
 
   echo $ac_n "checking for -Bgroup option""... $ac_c" 1>&6
-echo "configure:3011: checking for -Bgroup option" >&5
+echo "configure:3015: checking for -Bgroup option" >&5
 if eval "test \"`echo '$''{'libc_cv_Bgroup'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
     cat > conftest.c <<EOF
 int _start (void) { return 42; }
 EOF
-  if { ac_try='${CC-cc} -shared -o conftest.so conftest.c -Wl,-Bgroup -nostdlib 1>&5'; { (eval echo configure:3018: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+  if { ac_try='${CC-cc} -shared -o conftest.so conftest.c -Wl,-Bgroup -nostdlib 1>&5'; { (eval echo configure:3022: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
   then
     libc_cv_Bgroup=yes
   else
@@ -3027,7 +3031,7 @@ echo "$ac_t""$libc_cv_Bgroup" 1>&6
   
 
   echo $ac_n "checking for -z combreloc""... $ac_c" 1>&6
-echo "configure:3031: checking for -z combreloc" >&5
+echo "configure:3035: checking for -z combreloc" >&5
 if eval "test \"`echo '$''{'libc_cv_z_combreloc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3038,7 +3042,7 @@ int foo (void) { return bar (mumble); }
 EOF
   if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
 			-nostdlib -nostartfiles
-			-Wl,-z,combreloc 1>&5'; { (eval echo configure:3042: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+			-Wl,-z,combreloc 1>&5'; { (eval echo configure:3046: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
   then
     if readelf -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then
       libc_cv_z_combreloc=yes
@@ -3063,12 +3067,12 @@ fi
 
 if test $elf != yes; then
   echo $ac_n "checking for .init and .fini sections""... $ac_c" 1>&6
-echo "configure:3067: checking for .init and .fini sections" >&5
+echo "configure:3071: checking for .init and .fini sections" >&5
 if eval "test \"`echo '$''{'libc_cv_have_initfini'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3072 "configure"
+#line 3076 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3077,7 +3081,7 @@ asm (".section .init");
 				    asm ("${libc_cv_dot_text}");
 ; return 0; }
 EOF
-if { (eval echo configure:3081: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3085: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libc_cv_have_initfini=yes
 else
@@ -3100,7 +3104,7 @@ fi
 
 if test $elf = yes -a $gnu_ld = yes; then
   echo $ac_n "checking whether cc puts quotes around section names""... $ac_c" 1>&6
-echo "configure:3104: checking whether cc puts quotes around section names" >&5
+echo "configure:3108: checking whether cc puts quotes around section names" >&5
 if eval "test \"`echo '$''{'libc_cv_have_section_quotes'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3137,19 +3141,19 @@ if test $elf = yes; then
 else
   if test $ac_cv_prog_cc_works = yes; then
     echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
-echo "configure:3141: checking for _ prefix on C symbol names" >&5
+echo "configure:3145: checking for _ prefix on C symbol names" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3146 "configure"
+#line 3150 "configure"
 #include "confdefs.h"
 asm ("_glibc_foobar:");
 int main() {
 glibc_foobar ();
 ; return 0; }
 EOF
-if { (eval echo configure:3153: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3157: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   libc_cv_asm_underscores=yes
 else
@@ -3164,17 +3168,17 @@ fi
 echo "$ac_t""$libc_cv_asm_underscores" 1>&6
   else
     echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
-echo "configure:3168: checking for _ prefix on C symbol names" >&5
+echo "configure:3172: checking for _ prefix on C symbol names" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3173 "configure"
+#line 3177 "configure"
 #include "confdefs.h"
 void underscore_test(void) {
 return; }
 EOF
-if { (eval echo configure:3178: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3182: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   if grep _underscore_test conftest* >/dev/null; then
     rm -f conftest*
     libc_cv_asm_underscores=yes
@@ -3206,7 +3210,7 @@ if test $elf = yes; then
 fi
 
 echo $ac_n "checking for assembler .weak directive""... $ac_c" 1>&6
-echo "configure:3210: checking for assembler .weak directive" >&5
+echo "configure:3214: checking for assembler .weak directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_weak_directive'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3229,7 +3233,7 @@ echo "$ac_t""$libc_cv_asm_weak_directive" 1>&6
 
 if test $libc_cv_asm_weak_directive = no; then
   echo $ac_n "checking for assembler .weakext directive""... $ac_c" 1>&6
-echo "configure:3233: checking for assembler .weakext directive" >&5
+echo "configure:3237: checking for assembler .weakext directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_weakext_directive'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3276,14 +3280,14 @@ EOF
     ;;
   hppa*linux*)
   echo $ac_n "checking for assembler line separator""... $ac_c" 1>&6
-echo "configure:3280: checking for assembler line separator" >&5
+echo "configure:3284: checking for assembler line separator" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_line_sep'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
     cat > conftest.s <<EOF
  nop ; is_old_puffin
 EOF
-  if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:3287: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+  if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:3291: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
     libc_cv_asm_line_sep='!'
   else
     if test -z "$enable_hacker_mode"; then
@@ -3305,7 +3309,7 @@ EOF
 esac
 
 echo $ac_n "checking for ld --no-whole-archive""... $ac_c" 1>&6
-echo "configure:3309: checking for ld --no-whole-archive" >&5
+echo "configure:3313: checking for ld --no-whole-archive" >&5
 if eval "test \"`echo '$''{'libc_cv_ld_no_whole_archive'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3316,7 +3320,7 @@ __throw () {}
 EOF
 if { ac_try='${CC-cc} $CFLAGS
 			    -nostdlib -nostartfiles -Wl,--no-whole-archive
-			    -o conftest conftest.c 1>&5'; { (eval echo configure:3320: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c 1>&5'; { (eval echo configure:3324: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   libc_cv_ld_no_whole_archive=yes
 else
   libc_cv_ld_no_whole_archive=no
@@ -3330,7 +3334,7 @@ if test $libc_cv_ld_no_whole_archive = yes; then
 fi
 
 echo $ac_n "checking for gcc -fexceptions""... $ac_c" 1>&6
-echo "configure:3334: checking for gcc -fexceptions" >&5
+echo "configure:3338: checking for gcc -fexceptions" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_exceptions'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3341,7 +3345,7 @@ __throw () {}
 EOF
 if { ac_try='${CC-cc} $CFLAGS
 			    -nostdlib -nostartfiles -fexceptions
-			    -o conftest conftest.c 1>&5'; { (eval echo configure:3345: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c 1>&5'; { (eval echo configure:3349: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   libc_cv_gcc_exceptions=yes
 else
   libc_cv_gcc_exceptions=no
@@ -3356,14 +3360,14 @@ fi
 
 if test "$base_machine" = alpha ; then
 echo $ac_n "checking for function ..ng prefix""... $ac_c" 1>&6
-echo "configure:3360: checking for function ..ng prefix" >&5
+echo "configure:3364: checking for function ..ng prefix" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_alpha_ng_prefix'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.c <<\EOF
 foo () { }
 EOF
-if { ac_try='${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null'; { (eval echo configure:3367: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
+if { ac_try='${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null'; { (eval echo configure:3371: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
 then
   libc_cv_gcc_alpha_ng_prefix=yes
 else
@@ -3390,19 +3394,19 @@ if test "$host_cpu" = powerpc ; then
 # Check for a bug present in at least versions 2.8.x of GCC
 # and versions 1.0.x of EGCS.
 echo $ac_n "checking whether clobbering cr0 causes problems""... $ac_c" 1>&6
-echo "configure:3394: checking whether clobbering cr0 causes problems" >&5
+echo "configure:3398: checking whether clobbering cr0 causes problems" >&5
 if eval "test \"`echo '$''{'libc_cv_c_asmcr0_bug'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3399 "configure"
+#line 3403 "configure"
 #include "confdefs.h"
 int tester(int x) { asm ("" : : : "cc"); return x & 123; }
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:3406: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3410: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libc_cv_c_asmcr0_bug='no'
 else
@@ -3424,12 +3428,12 @@ fi
 fi
 
 echo $ac_n "checking for DWARF2 unwind info support""... $ac_c" 1>&6
-echo "configure:3428: checking for DWARF2 unwind info support" >&5
+echo "configure:3432: checking for DWARF2 unwind info support" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_dwarf2_unwind_info'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.c <<EOF
-#line 3433 "configure"
+#line 3437 "configure"
 static char *__EH_FRAME_BEGIN__;
 _start ()
 {
@@ -3456,14 +3460,14 @@ __bzero () {}
 EOF
 if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info
 			    -nostdlib -nostartfiles
-			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3460: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3464: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   libc_cv_gcc_dwarf2_unwind_info=static
 else
   libc_cv_gcc_dwarf2_unwind_info=no
 fi
 if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info
                             -nostdlib -nostartfiles
-                            -o conftest conftest.c -lgcc -lgcc_eh >&5'; { (eval echo configure:3467: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+                            -o conftest conftest.c -lgcc -lgcc_eh >&5'; { (eval echo configure:3471: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   if ${CC-cc} $CFLAGS -DCHECK__register_frame_info -nostdlib -nostartfiles \
      -o conftest conftest.c -lgcc -lgcc_eh -v 2>&1 >/dev/null \
      | grep -q -- --eh-frame-hdr; then
@@ -3477,7 +3481,7 @@ fi
 if test $libc_cv_gcc_dwarf2_unwind_info = no; then
   if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame
 			      -nostdlib -nostartfiles
-			      -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3481: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			      -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3485: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
     libc_cv_gcc_dwarf2_unwind_info=yes
   else
     libc_cv_gcc_dwarf2_unwind_info=no
@@ -3507,12 +3511,12 @@ EOF
 esac
 
 echo $ac_n "checking for __builtin_expect""... $ac_c" 1>&6
-echo "configure:3511: checking for __builtin_expect" >&5
+echo "configure:3515: checking for __builtin_expect" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_builtin_expect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.c <<EOF
-#line 3516 "configure"
+#line 3520 "configure"
 int foo (int a)
 {
   a = __builtin_expect (a, 10);
@@ -3520,7 +3524,7 @@ int foo (int a)
 }
 EOF
 if { ac_try='${CC-cc} $CFLAGS -nostdlib -nostartfiles
-			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3524: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3528: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   libc_cv_gcc_builtin_expect=yes
 else
   libc_cv_gcc_builtin_expect=no
@@ -3537,7 +3541,7 @@ EOF
 fi
 
 echo $ac_n "checking for __builtin_memset""... $ac_c" 1>&6
-echo "configure:3541: checking for __builtin_memset" >&5
+echo "configure:3545: checking for __builtin_memset" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_builtin_memset'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3547,7 +3551,7 @@ void zero (void *x)
   __builtin_memset (x, 0, 1000);
 }
 EOF
-if { ac_try='${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null'; { (eval echo configure:3551: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
+if { ac_try='${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null'; { (eval echo configure:3555: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
 then
   libc_cv_gcc_builtin_memset=no
 else
@@ -3565,12 +3569,12 @@ EOF
 fi
 
 echo $ac_n "checking for local label subtraction""... $ac_c" 1>&6
-echo "configure:3569: checking for local label subtraction" >&5
+echo "configure:3573: checking for local label subtraction" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_subtract_local_labels'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.c <<EOF
-#line 3574 "configure"
+#line 3578 "configure"
 int foo (int a)
 {
   static const int ar[] = { &&l1 - &&l1, &&l2 - &&l1 };
@@ -3583,7 +3587,7 @@ int foo (int a)
 }
 EOF
 if { ac_try='${CC-cc} $CFLAGS -nostdlib -nostartfiles
-			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3587: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3591: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   libc_cv_gcc_subtract_local_labels=yes
 else
   libc_cv_gcc_subtract_local_labels=no
@@ -3600,14 +3604,14 @@ EOF
 fi
 
 echo $ac_n "checking for __thread""... $ac_c" 1>&6
-echo "configure:3604: checking for __thread" >&5
+echo "configure:3608: checking for __thread" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc___thread'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.c <<EOF
 __thread int a = 42;
 EOF
-if { ac_try='${CC-cc} $CFLAGS -c conftest.c >&5'; { (eval echo configure:3611: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+if { ac_try='${CC-cc} $CFLAGS -c conftest.c >&5'; { (eval echo configure:3615: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   libc_cv_gcc___thread=yes
 else
   libc_cv_gcc___thread=no
@@ -3625,7 +3629,7 @@ fi
 
 
 echo $ac_n "checking for libgd""... $ac_c" 1>&6
-echo "configure:3629: checking for libgd" >&5
+echo "configure:3633: checking for libgd" >&5
 if test "$with_gd" != "no"; then
   old_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS $libgd_include"
@@ -3634,14 +3638,14 @@ if test "$with_gd" != "no"; then
   old_LIBS="$LIBS"
   LIBS="$LIBS -lgd -lpng -lz -lm"
   cat > conftest.$ac_ext <<EOF
-#line 3638 "configure"
+#line 3642 "configure"
 #include "confdefs.h"
 #include <gd.h>
 int main() {
 gdImagePng (0, 0)
 ; return 0; }
 EOF
-if { (eval echo configure:3645: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3649: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBGD=yes
 else
@@ -3661,7 +3665,7 @@ echo "$ac_t""$LIBGD" 1>&6
 
 
 echo $ac_n "checking size of long double""... $ac_c" 1>&6
-echo "configure:3665: checking size of long double" >&5
+echo "configure:3669: checking size of long double" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3669,7 +3673,7 @@ else
   ac_cv_sizeof_long_double=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 3673 "configure"
+#line 3677 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main()
@@ -3680,7 +3684,7 @@ int main()
   return(0);
 }
 EOF
-if { (eval echo configure:3684: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3688: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_long_double=`cat conftestval`
 else
@@ -3758,7 +3762,7 @@ if test "$uname" = "sysdeps/generic"; then
   fi
 
   echo $ac_n "checking OS release for uname""... $ac_c" 1>&6
-echo "configure:3762: checking OS release for uname" >&5
+echo "configure:3766: checking OS release for uname" >&5
 if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3780,7 +3784,7 @@ echo "$ac_t""$libc_cv_uname_release" 1>&6
   uname_release="$libc_cv_uname_release"
 
   echo $ac_n "checking OS version for uname""... $ac_c" 1>&6
-echo "configure:3784: checking OS version for uname" >&5
+echo "configure:3788: checking OS version for uname" >&5
 if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3809,7 +3813,7 @@ EOF
 # Test for old glibc 2.0.x headers so that they can be removed properly
 # Search only in includedir.
 echo $ac_n "checking for old glibc 2.0.x headers""... $ac_c" 1>&6
-echo "configure:3813: checking for old glibc 2.0.x headers" >&5
+echo "configure:3817: checking for old glibc 2.0.x headers" >&5
 if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h"
 then
   old_glibc_headers=yes
@@ -3870,7 +3874,7 @@ if test $shared = default; then
 fi
 
 echo $ac_n "checking whether -fPIC is default""... $ac_c" 1>&6
-echo "configure:3874: checking whether -fPIC is default" >&5
+echo "configure:3878: checking whether -fPIC is default" >&5
 if eval "test \"`echo '$''{'pic_default'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
diff --git a/configure.in b/configure.in
index d2af5ab..808e52b 100644
--- a/configure.in
+++ b/configure.in
@@ -1041,11 +1041,15 @@ changequote([,])dnl
 		 [cat > conftest.c <<EOF
 		  extern int foo (int x) __asm ("xyzzy");
 		  int bar (int x) { return x; }
-                  extern __typeof (bar) foo __attribute ((weak, alias ("bar")));
+		  extern __typeof (bar) foo __attribute ((weak, alias ("bar")));
+		  extern int dfoo;
+		  extern __typeof (dfoo) dfoo __asm ("abccb");
+		  int dfoo = 1;
 EOF
 		  libc_cv_broken_alias_attribute=yes
 		  if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
-		    if grep 'xyzzy' conftest.s >/dev/null; then
+		    if grep 'xyzzy' conftest.s >/dev/null &&
+		       grep 'abccb' conftest.s >/dev/null; then
 		      libc_cv_broken_alias_attribute=no
 		    fi
 		  fi