Os-specific CFLAGS

Makefile

@@ -1,9 +1,19 @@
 CC=gcc
 SRC=litejq.c
-OUT=litejq
+
 PKG_CONFIG ?= pkg-config
 
-CFLAGS=-shared -fPIC
+# OS detection
+UNAME_S := $(shell uname -s)
+
+# Conditional OS-specific flags
+ifeq ($(UNAME_S),Darwin) # macOS
+    CFLAGS = -Wall -Wsign-compare -fPIC -dynamiclib
+    OUT = litejq.dylib
+else ifeq ($(UNAME_S),Linux)
+    CFLAGS = -z now -z relro -Wall -Wsign-compare -Wno-unknown-pragmas -fPIC -shared
+    OUT = litejq.so
+endif
 
 SQLITE_FLAGS=$(shell $(PKG_CONFIG) --cflags --libs sqlite3)
 CFLAGS += $(SQLITE_FLAGS)