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| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cppfiles.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b9eeac7..9d71350 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-05-22 Alexandre Oliva <aoliva@redhat.com> + + * cppfiles.c (remove_component_p): Don't assume lstat/stat will + keep errno unchanged on success. + 2001-05-22 Joseph S. Myers <jsm28@cam.ac.uk> * c-lex.c (lex_number): If pedantic and not C99, pedwarn exactly diff --git a/gcc/cppfiles.c b/gcc/cppfiles.c index dea6dd6..137882b 100644 --- a/gcc/cppfiles.c +++ b/gcc/cppfiles.c @@ -1027,6 +1027,12 @@ remove_component_p (path) result = stat (path, &s); #endif + /* There's no guarantee that errno will be unchanged, even on + success. Cygwin's lstat(), for example, will often set errno to + ENOSYS. In case of success, reset errno to zero. */ + if (result == 0) + errno = 0; + return result == 0 && S_ISDIR (s.st_mode); } |