diff --git a/RIGAL/rigsc.446/src/Makefile b/RIGAL/rigsc.446/src/Makefile
index 70d3813a0684edcffc359f921434290114fe2b09..cb1a5df061022c3aaee6bb98d1592b0fff75bc38 100644
--- a/RIGAL/rigsc.446/src/Makefile
+++ b/RIGAL/rigsc.446/src/Makefile
@@ -4,10 +4,16 @@
 #
 
 # C compiler to use (Compiler path can be changed by the user)
+#COMPILER = clang
+#COMPILER = gcc 
+COMPILER = cc
 #CCFLAGS = -g -DLE -m32 -I/usr/include -I../include 
+#CCFLAGS =  -m32 -Wall -Wextra -Wdouble-promotion -Wnonnull -Wnull-dereference -Winit-self -Wimplicit-fallthrough=4 -Wunused-function -Wunused-label -Wunused -Wuninitialized -Wstringop-overflow -Walloca -I/usr/include -I../include
+#CCFLAGS =  -m32 -Wall -Wextra -Wdouble-promotion -Wnonnull -Wnull-dereference -Winit-self -Wimplicit-fallthrough=4 -Wunused-function -Wunused-label -Wunused -Wuninitialized -Wstringop-overflow -Walloca -I/usr/include -I../include
+#CCFLAGS =   -fPIC -I/usr/include -I../include
 CCFLAGS =  -m32 -I/usr/include -I../include
 #PCA =  cc $(CCFLAGS) -D STATIC_CCFLAGS='"$(CCFLAGS)"' -c  xsun=1 -I../include/ -I/usr/include
-PCA =  cc $(CCFLAGS) -D STATIC_CCFLAGS='"$(CCFLAGS)"'  -c 
+PCA =  $(COMPILER)  $(CCFLAGS) -D STATIC_CCFLAGS='"$(CCFLAGS)"'  -c 
 # math lib for sin, cos, sqrt etc.
 LIBS = -lm