diff options
Diffstat (limited to 'gcc/cppfiles.c')
| -rw-r--r-- | gcc/cppfiles.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/cppfiles.c b/gcc/cppfiles.c index 4508034..aeca30d 100644 --- a/gcc/cppfiles.c +++ b/gcc/cppfiles.c @@ -80,6 +80,16 @@ struct include_file unsigned char defined; /* cmacro prevents inclusion in this state */ }; +/* The cmacro works like this: If it's NULL, the file is to be + included again. If it's NEVER_REREAD, the file is never to be + included again. Otherwise it is a macro hashnode, and the file is + to be included again if the macro is defined or not as specified by + DEFINED. */ +#define NEVER_REREAD ((const cpp_hashnode *)-1) +#define DO_NOT_REREAD(inc) \ +((inc)->cmacro && ((inc)->cmacro == NEVER_REREAD \ + || ((inc)->cmacro->type == NT_MACRO) == (inc)->defined)) + static struct file_name_map *read_name_map PARAMS ((cpp_reader *, const char *)); static char *read_filename_string PARAMS ((int, FILE *)); |