Added Linux and macOS makefiles

Author: kounch

.gitignore

@@ -50,3 +50,6 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+
+# Other
+build/

Makefile.linux

@@ -0,0 +1,20 @@
+CC      = gcc
+CFLAGS  = -x c
+STRIP   = strip
+RM      = rm -f
+
+
+default: all
+
+all: csw0 csw2cdt
+
+csw0: CSW0.C
+	$(CC) $(CFLAGS) -o csw0 CSW0.C
+	$(STRIP) csw0
+
+csw2cdt: CSW2CDT.C
+	$(CC) $(CFLAGS) -o csw2cdt CSW2CDT.C
+	$(STRIP) csw2cdt
+
+clean:
+	$(RM) csw0 csw2cdt

Makefile.macos

@@ -0,0 +1,20 @@
+CC      = gcc
+CFLAGS  = -arch arm64 -arch x86_64 -x c
+STRIP   = strip
+RM      = rm -f
+
+
+default: all
+
+all: csw0 csw2cdt
+
+csw0: CSW0.C
+	$(CC) $(CFLAGS) -o csw0 CSW0.C
+	$(STRIP) csw0
+
+csw2cdt: CSW2CDT.C
+	$(CC) $(CFLAGS) -o csw2cdt CSW2CDT.C
+	$(STRIP) csw2cdt
+
+clean:
+	$(RM) csw0 csw2cdt

README.md

@@ -1,5 +1,7 @@
 # CSW2CDT computer tape tool suite
 
+Obtained from <http://cngsoft.no-ip.org/csw2cdt.htm>
+
 Select your desired language / Elija idioma:
 
 - Click [this link for English](#english)