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-rw-r--r--gcc/cppinit.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/gcc/cppinit.c b/gcc/cppinit.c
index f1b6b24..5a38734 100644
--- a/gcc/cppinit.c
+++ b/gcc/cppinit.c
@@ -1010,12 +1010,13 @@ void
cpp_finish (pfile)
cpp_reader *pfile;
{
- if (CPP_BUFFER (pfile))
- {
- cpp_ice (pfile, "buffers still stacked in cpp_finish");
- while (CPP_BUFFER (pfile))
- _cpp_pop_buffer (pfile);
- }
+ /* cpplex.c leaves the final buffer on the stack. This it so that
+ it returns an unending stream of CPP_EOFs to the client. If we
+ popped the buffer, we'd derefence a NULL buffer pointer and
+ segfault. It's nice to allow the client to do worry-free excess
+ cpp_get_token calls. */
+ while (pfile->buffer)
+ _cpp_pop_buffer (pfile);
/* Don't write the deps file if preprocessing has failed. */
if (CPP_OPTION (pfile, print_deps) && pfile->errors == 0)