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-rw-r--r--libgfortran/runtime/backtrace.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libgfortran/runtime/backtrace.c b/libgfortran/runtime/backtrace.c
index dff4466..943332a 100644
--- a/libgfortran/runtime/backtrace.c
+++ b/libgfortran/runtime/backtrace.c
@@ -95,6 +95,8 @@ fd_gets (char *s, int size, int fd)
else
{
s[i] = '\0';
+ if (i == 0)
+ return NULL;
break;
}
}