enable and fix additional warnings for alib2elgo

alib2elgo/makefile

@@ -10,6 +10,8 @@ endef
 export NEW_LINE
+CXX_FLAGS := -Wall -pedantic -Wextra -Werror -Wshadow -Wpointer-arith -Wcast-qual -Wdelete-non-virtual-dtor -Wredundant-decls
+
 space := $(eval) $(eval)
 LDFLAGS_DEBUG:=-rdynamic -shared
@@ -54,7 +56,7 @@ FORCE:
 	$${NEW_LINE}\
 	export NEW_LINE$${NEW_LINE}\
 	$${NEW_LINE}\
-	CXXFLAGS:= -pipe -std=c++11 \$$(CXX_OTHER_FLAGS) -c -Wall -pedantic -Wextra -Werror -fPIC \$$(addprefix -I, \$$(realpath $(INCLUDE_PATHS))) -I\$$(realpath \$$(SOURCES_BASE_DIR)/../src/)$${NEW_LINE}\
+	CXXFLAGS:= -pipe -std=c++11 \$$(CXX_OTHER_FLAGS) -c $(CXX_FLAGS) -fPIC \$$(addprefix -I, \$$(realpath $(INCLUDE_PATHS))) -I\$$(realpath \$$(SOURCES_BASE_DIR)/../src/)$${NEW_LINE}\
 	$${NEW_LINE}\
 	SOURCES:= \$$(shell find \$$(SOURCES_BASE_DIR)/\$$(SRCDIR) -maxdepth 1 -type f -name \"*.cpp\")$${NEW_LINE}\
 	DEPENDENCIES:= \$$(patsubst \$$(SOURCES_BASE_DIR)/\$$(SRCDIR)%.cpp, \$$(OBJECTS_BASE_DIR)/\$$(SRCDIR)%.d, \$$(SOURCES))$${NEW_LINE}\