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-rw-r--r--common/main.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/common/main.c b/common/main.c
index cc4b50f615a..8f196a48282 100644
--- a/common/main.c
+++ b/common/main.c
@@ -1219,6 +1219,8 @@ static void process_macros (const char *input, char *output)
if (outputcnt)
*output = 0;
+ else
+ *(output - 1) = 0;
#ifdef DEBUG_PARSER
printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",