diff options
Diffstat (limited to 'gcc/cppfiles.c')
| -rw-r--r-- | gcc/cppfiles.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/cppfiles.c b/gcc/cppfiles.c index f46052e..a64307b 100644 --- a/gcc/cppfiles.c +++ b/gcc/cppfiles.c @@ -623,7 +623,11 @@ cpp_read_file (pfile, fname) fname = ""; dummy.nshort = fname; - dummy.hash = _cpp_calc_hash (fname, strlen (fname)); + /* _cpp_calc_hash doesn't like zero-length strings. */ + if (*fname == 0) + dummy.hash = 0; + else + dummy.hash = _cpp_calc_hash (fname, strlen (fname)); slot = (IHASH **) htab_find_slot_with_hash (pfile->all_include_files, (const void *) &dummy, dummy.hash, 1); |