--- src/Makefile	2022-02-19 18:16:01.000000000 -0500
+++ src/Makefile	2023-07-17 18:16:43.271921000 -0500
@@ -44,10 +44,10 @@
 export RANLIB ?= ranlib
 
 export CFLAGS := -Wall
-export CXXFLAGS := -Wall -Wno-unused-parameter
+export CXXFLAGS ?= -Wall -Wno-unused-parameter
 C_CXX_FLAGS := -MMD -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGE_FILES -I$(BASE_DIR) -I$(BASE_DIR)/Crypto
 export ASFLAGS := -D __GNUC__ -D __YASM__
-export LFLAGS :=
+export LFLAGS ?=
 
 export PKG_CONFIG_PATH ?= /usr/local/lib/pkgconfig