external/libcdr/ax_gcc_func_attribute.m4.patch


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--- configure
+++ configure
@@ -19167,7 +19167,7 @@
 
 _ACEOF
 if ac_fn_cxx_try_link "$LINENO"; then :
-                                      if test -s conftest.err; then :
+                                      if grep -- -Wattributes conftest.err; then :
   ax_cv_have_func_attribute_visibility=no
 else
   ax_cv_have_func_attribute_visibility=yes