+#if defined(__GNUC__)
+# if defined __USE_ISOC99
+# define _cat_pragma(exp) _Pragma(#exp)
+# define _weak_pragma(exp) _cat_pragma(weak name)
+# else
+# define _weak_pragma(exp)
+# endif
+# define _declare(name) __extension__ extern __typeof__(name) name
+# define weak_symbol(name) _weak_pragma(name) _declare(name) __attribute__((weak))
+#endif
+
+weak_symbol(fopen);
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:9344: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:9347: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:9350: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:9353: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cf_cv_weak_symbols=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_weak_symbols=no