https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65481
Bug ID: 65481
Summary: _Pragma GCC dependency broken on powerpc64
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: preprocessor
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
The gcc.dg/cpp/_Pragma3.c test is failing on powerpc64 but passes on
powerpc64le. The following test case demonstrates the same problem that causes
the test failure. It looks like the timestamp computation is broken on this
target. GCC 4.8.3 has the same problem.
$ cat t.c && touch t.h && stat t.c t.h && /build/gcc-5.0/gcc/xgcc
-B/build/gcc-5.0/gcc -ansi -pedantic-errors -E -o/dev/null t.c
#define GCC_PRAGMA(x) _Pragma (#x)
GCC_PRAGMA(GCC dependency "t.h")
File: ‘t.c’
Size: 68 Blocks: 8 IO Block: 65536 regular file
Device: fd00h/64768d Inode: 69928678 Links: 1
Access: (0664/-rw-rw-r--) Uid: (25066/ msebor) Gid: (25066/ msebor)
Context: unconfined_u:object_r:default_t:s0
Access: 2015-03-19 19:55:32.668667450 -0400
Modify: 2015-03-19 19:54:40.448639710 -0400
Change: 2015-03-19 19:54:40.468639721 -0400
Birth: -
File: ‘t.h’
Size: 0 Blocks: 0 IO Block: 65536 regular empty file
Device: fd00h/64768d Inode: 69928674 Links: 1
Access: (0664/-rw-rw-r--) Uid: (25066/ msebor) Gid: (25066/ msebor)
Context: unconfined_u:object_r:default_t:s0
Access: 2015-03-19 19:56:02.508682213 -0400
Modify: 2015-03-19 19:56:02.508682213 -0400
Change: 2015-03-19 19:56:02.508682213 -0400
Birth: -
t.c:2:16: warning: current file is older than t.h
GCC_PRAGMA(GCC dependency "t.h")
^
