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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/c-decl.c2
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.dg/pr35445.c6
4 files changed, 18 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index faf8eac..da19a8f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-05-02 Simon Martin <simartin@users.sourceforge.net>
+
+ PR c/35445
+ * c-decl.c (finish_decl): Only create a composite if the types are
+ compatible.
+
2011-05-02 Joseph Myers <joseph@codesourcery.com>
* config/fr30/fr30-protos.h (Mmode): Don't define.
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index ce6fd2a..3470a93 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -4246,7 +4246,7 @@ finish_decl (tree decl, location_t init_loc, tree init,
b_ext = b_ext->shadowed;
if (b_ext)
{
- if (b_ext->u.type)
+ if (b_ext->u.type && comptypes (b_ext->u.type, type))
b_ext->u.type = composite_type (b_ext->u.type, type);
else
b_ext->u.type = type;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e6cdd3f..be4f4b6 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-05-02 Simon Martin <simartin@users.sourceforge.net>
+
+ PR c/35445
+ * gcc.dg/pr35445.c: New test.
+
2011-05-02 Jason Merrill <jason@redhat.com>
* c-c++-common/vla-1.c: New.
diff --git a/gcc/testsuite/gcc.dg/pr35445.c b/gcc/testsuite/gcc.dg/pr35445.c
new file mode 100644
index 0000000..cef309f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr35445.c
@@ -0,0 +1,6 @@
+/* PR c/35445 */
+/* { dg-do "compile" } */
+
+extern int i;
+extern int i; /* { dg-message "was here" } */
+int i[] = { 0 }; /* { dg-error "conflicting types" } */