https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105608

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ro at gcc dot gnu.org

--- Comment #10 from Rainer Orth <ro at gcc dot gnu.org> ---
Something very weird is going on here: the new g++.dg/pch/line-map-3.C test
FAILs on i386-pc-solaris2.11 only:

XPASS: g++.dg/pch/line-map-3.C  -O2 -I. -Dwith_PCH  (test for bogus messages,
line 2)
+XPASS: g++.dg/pch/line-map-3.C  -O2 -I. -Dwith_PCH  at line 17 (test for bogus
messages, line 2)
+FAIL: g++.dg/pch/line-map-3.C  -O2 -I. -Dwith_PCH (test for excess errors)
+XPASS: g++.dg/pch/line-map-3.C  -O2 -g -I. -Dwith_PCH  (test for bogus
messages, line 2)
+XPASS: g++.dg/pch/line-map-3.C  -O2 -g -I. -Dwith_PCH  at line 17 (test for
bogus messages, line 2)
+FAIL: g++.dg/pch/line-map-3.C  -O2 -g -I. -Dwith_PCH (test for excess errors)
+XPASS: g++.dg/pch/line-map-3.C  -g -I. -Dwith_PCH  (test for bogus messages,
line 2)
+XPASS: g++.dg/pch/line-map-3.C  -g -I. -Dwith_PCH  at line 17 (test for bogus
messages, line 2)
+FAIL: g++.dg/pch/line-map-3.C  -g -I. -Dwith_PCH (test for excess errors)

both 32 and 64-bit.  The excess error is

Excess errors:
/vol/gcc/src/hg/master/local/gcc/testsuite/g++.dg/pch/line-map-3.C:3:9: error:
macro "UNUSED_MACRO" is not used [-Werror=unused-macros]
/vol/gcc/src/hg/master/local/gcc/testsuite/g++.dg/pch/line-map-3.C:3:9: error:
macro "with_PCH" is not used [-Werror=unused-macros]

When checking sparc-sun-solaris2.11 for comparison, the output is different:

./line-map-3.H:2: error: macro "UNUSED_MACRO" is not used
[-Werror=unused-macros]
./line-map-3.H:2: error: macro "with_PCH" is not used [-Werror=unused-macros]

This is totally strange since the setup of both systems is identical; they're
even building from a shared source tree.

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