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-rw-r--r--BaseTools/Source/C/VfrCompile/Pccts/antlr/makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/BaseTools/Source/C/VfrCompile/Pccts/antlr/makefile b/BaseTools/Source/C/VfrCompile/Pccts/antlr/makefile
index 478a3a1ccf..c49cfd8fb2 100644
--- a/BaseTools/Source/C/VfrCompile/Pccts/antlr/makefile
+++ b/BaseTools/Source/C/VfrCompile/Pccts/antlr/makefile
@@ -164,7 +164,7 @@ PCCTS_H=../h
#
# UNIX (default)
#
-CC=gcc
+CC?=gcc
COPT=-O
ANTLR=${BIN_DIR}/antlr
DLG=${BIN_DIR}/dlg