feat(makefile): add release script

makefile

@@ -1,10 +1,13 @@
-OPENSSL_PATH=/home/ceo/src/openssl
-
 build:
 # source should go before libs, otherwise they are skipped
 # -L/usr/local/lib64/
 # -std=c++2a for string.endsWith
-	g++ main.cpp -std=c++2a -pthread -L/usr/local/lib64/ -lcrypto -o mars
+	g++ -std=c++2a main.cpp -pthread -L/usr/local/lib64/ -lcrypto -o mars
+
+release:
+# https://stackoverflow.com/a/21250906/14776286
+# statically link libs + remove unused symbols
+	g++ -std=c++2a -O3 -fdata-sections -ffunction-sections main.cpp -pthread -static -L/usr/local/lib64/ -lcrypto -lz -ldl -o mars -Wl,--gc-sections -Wl,--strip-all
 
 test:
 	g++ test.cpp -pthread -L/usr/local/lib64/ -lcrypto -o test-suite && ./test-suite