diff options
Diffstat (limited to 'gcc/cpplib.c')
| -rw-r--r-- | gcc/cpplib.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/gcc/cpplib.c b/gcc/cpplib.c index 057bdf4c..97e0cf2 100644 --- a/gcc/cpplib.c +++ b/gcc/cpplib.c @@ -311,7 +311,32 @@ _cpp_handle_directive (pfile, indented) /* If we are rescanning preprocessed input, only directives tagged with IN_I are honored, and the warnings below are suppressed. */ - if (! CPP_OPTION (pfile, preprocessed) || dir->flags & IN_I) + if (CPP_OPTION (pfile, preprocessed)) + { + /* Kluge alert. In order to be sure that code like this + #define HASH # + HASH define foo bar + does not cause '#define foo bar' to get executed when + compiled with -save-temps, we recognize directives in + -fpreprocessed mode only if the # is in column 1 and the + directive name starts in column 2. This output can only + be generated by the directive callbacks in cppmain.c (see + also the special case in scan_buffer). */ + if (dir->flags & IN_I && !indented && !(dname.flags & PREV_WHITE)) + (*dir->handler) (pfile); + /* That check misses '# 123' linemarkers. Let them through too. */ + else if (dname.type == CPP_NUMBER) + (*dir->handler) (pfile); + else + { + /* We don't want to process this directive. Put back the + tokens so caller will see them (and issue an error, + probably). */ + _cpp_push_token (pfile, &dname, &pfile->directive_pos); + skip = 0; + } + } + else { /* Traditionally, a directive is ignored unless its # is in column 1. Therefore in code intended to work with K+R |