--- CPP/7zip/Compress/LZMA_Alone/makefile.gcc.orig	2018-05-31 22:49:29.000000000 -0500
+++ CPP/7zip/Compress/LZMA_Alone/makefile.gcc	2018-05-31 22:52:04.000000000 -0500
@@ -1,6 +1,6 @@
 PROG = lzma
-CXX = g++ -O2 -Wall
-CXX_C = gcc -O2 -Wall
+CXX = @CXX@ -Wall
+CXX_C = @CC@ -Wall
 LIB = -lm
 RM = rm -f
 CFLAGS = -c