diff --git a/ChangeLog b/ChangeLog
index 7f3e157f..052ac7c8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2009-08-12  Akim Demaille  <demaille@gostai.com>
+
+	tests: GCC 4.5 compliance.
+	* tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust to GCC 4.5's
+	messages about #error.
+
 2009-08-12  Akim Demaille  <demaille@gostai.com>
 
 	build: fix the generation of the documentation.
diff --git a/tests/synclines.at b/tests/synclines.at
index 8653b460..56efdac6 100644
--- a/tests/synclines.at
+++ b/tests/synclines.at
@@ -34,7 +34,18 @@ m4_define([AT_SYNCLINES_COMPILE],
 # =>
 #   input.y:4: #error "4"
 #
-AT_CHECK([[sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/' stderr]], 0, [stdout])
+# It may also issue more context information:
+#
+#   input.y: In function 'yyparse':
+#   input.y:8: #error "8"
+# =>
+#   input.y:4: #error "8"
+#
+AT_CHECK([[sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/'      \
+               -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/'  \
+               -e "/^[^:]*: In function '[^\']*':$/d"                \
+            stderr]],
+         0, [stdout])
 ])
 
 # AT_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)