(the test case is very similar but not identical to the one in PR ada/34353; the symptoms are different).
procedure test1 is type T1 is record X : Integer; F : access function return T1; end record; begin null; end test1; gnatmake -gnat05 test1 gcc-4.1 -c -gnat05 test1.adb +===========================GNAT BUG DETECTED==============================+ | 4.1.3 20070518 (prerelease) (Debian 4.1.2-8) (x86_64-pc-linux-gnu) GCC error:| | in save_gnu_tree, at ada/utils.c:178 | | No source file position information available | gcc -c -gnat05 -x ada test1.ada +===========================GNAT BUG DETECTED==============================+ | 4.2.2 (i686-unknown-linux-gnu) in save_gnu_tree, at ada/utils.c:176 | | No source file position information available | -- Summary: Bug box in save_gnu_tree, at ada/utils.c:176, in legal Ada 2005 program Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ludovic at ludovic-brenta dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34354