Repair makefile (#41)

This Makefile both follows convention better, and uses sane defaults

For example, make has default rules for building.

All projects, unless they are certain, should use them. So this does.

This also adds `install` without falling into the `-D` portability trap.

This program should never be accepted as a package to any Linux
distribution.

Author: Vaelatern

.gitignore

@@ -1,4 +1,4 @@
-temp
+dollarskip
 .vscode
 
 # PKGBUILD files

Makefile

@@ -0,0 +1,19 @@
+.PHONY: all clean uninstall install
+
+CC ?= gcc
+STRIP ?= strip
+PREFIX ?= /usr/local
+CFLAGS += -g -Wall -Wextra -Wpedantic
+
+all: dollarskip
+
+install: dollarskip
+	$(STRIP) dollarskip
+	install -d $(DESTDIR)$(PREFIX)/bin
+	install -m 755 dollarskip $(DESTDIR)$(PREFIX)/bin/\$
+
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/bin/\$
+
+clean:
+	rm -f dollarskip