--- Makefile.orig	2018-05-24 03:17:31 UTC
+++ Makefile
@@ -6,10 +6,10 @@ FLAGSCOMW=-Wall -Wextra -Wshadow -Wcast-
 #Common optimization flags for C and C++
 FLAGSCOMO=-O2 -funroll-loops -fno-common -fshort-enums
 #Flags for C
-CFLAGS=-std=c99 -pedantic $(FLAGSCOMW) -Wconversion -Wmissing-prototypes
+CFLAGS+=-std=c99 -pedantic $(FLAGSCOMW) -Wconversion -Wmissing-prototypes
 CFLAGS+=-Wstrict-prototypes -Wnested-externs $(FLAGSCOMO)
 #Flags for C++
-CXXFLAGS=$(FLAGSCOMW) $(FLAGSCOMO)
+CXXFLAGS+=$(FLAGSCOMW) $(FLAGSCOMO)
 #Export flags for compilers and linker
 export CFLAGS CXXFLAGS