Index: atanks-6.3/Makefile
===================================================================
--- atanks-6.3.orig/Makefile
+++ atanks-6.3/Makefile
@@ -232,7 +232,7 @@ ifeq (YES,$(DEBUG))
   endif
 
 else
-  CXXFLAGS := -march=native ${CXXFLAGS} -O2
+  CXXFLAGS := ${CXXFLAGS}
 endif
 
 
--- atanks-6.6/Makefile~	2021-08-12 09:57:21.403451957 -0500
+++ atanks-6.6/Makefile	2021-08-12 12:15:12.000041013 -0500
@@ -141,7 +141,7 @@
 # ------------------------------------
 # Flags for compiler and linker
 # ------------------------------------
-CPPFLAGS += -DDATA_DIR=\"${INSTALLDIR}\" -D$(PLATFORM) -DVERSION=\"${VERSION}\"
+CPPFLAGS += -DDATA_DIR=\"${INSTALLDIR}\" -DLINUX -DVERSION=\"${VERSION}\"
 CXXFLAGS += -Wall -Wextra $(PEDANDIC_FLAG) -std=c++$(GCC_CXXSTD)
 LDFLAGS  +=