Switch to using gcc instead of clang

compile

@@ -20,7 +20,7 @@ FG_BR_MAGENTA="\033[95"
 FG_BR_CYAN="\033[96"
 FG_BR_WHITE="\033[97"
 
-CC=clang
+CC=gcc
 AR=ar
 CFLAGS="-Wall -Werror -pedantic -Iinclude -Iintern/c-cpp-aliases -Iintern/cpath/include "
 
@@ -78,7 +78,7 @@ if [[ $BUILD_TYPE == "debug" ]]; then
 else
 	mkdir -p dist
 	cp ./include/pak.h dist
-	CFLAGS+="-O3 "
+	CFLAGS+="-O3 -g "
 	PCKR_OUT="dist/pckr"
 	PAKRD_OUT="dist/libpakrd.a"
 fi