Makefile: Don't copy DDHotKey headers multiple times

Previously, the rule was copying all header files for every header file:

    cp lib/DDHotKey/Compatibility.h lib/DDHotKey/DDHotKeyAppDelegate.h lib/DDHotKey/DDHotKeyCenter.h lib/DDHotKey/DDHotKeyTextField.h lib/DDHotKey/DDHotKeyUtilities.h build/include/
    cp lib/DDHotKey/Compatibility.h lib/DDHotKey/DDHotKeyAppDelegate.h lib/DDHotKey/DDHotKeyCenter.h lib/DDHotKey/DDHotKeyTextField.h lib/DDHotKey/DDHotKeyUtilities.h build/include/
    cp lib/DDHotKey/Compatibility.h lib/DDHotKey/DDHotKeyAppDelegate.h lib/DDHotKey/DDHotKeyCenter.h lib/DDHotKey/DDHotKeyTextField.h lib/DDHotKey/DDHotKeyUtilities.h build/include/
    cp lib/DDHotKey/Compatibility.h lib/DDHotKey/DDHotKeyAppDelegate.h lib/DDHotKey/DDHotKeyCenter.h lib/DDHotKey/DDHotKeyTextField.h lib/DDHotKey/DDHotKeyUtilities.h build/include/
    cp lib/DDHotKey/Compatibility.h lib/DDHotKey/DDHotKeyAppDelegate.h lib/DDHotKey/DDHotKeyCenter.h lib/DDHotKey/DDHotKeyTextField.h lib/DDHotKey/DDHotKeyUtilities.h build/include/

Change it to only copy once per header:

    cp lib/DDHotKey/Compatibility.h build/include/
    cp lib/DDHotKey/DDHotKeyAppDelegate.h build/include/
    cp lib/DDHotKey/DDHotKeyCenter.h build/include/
    cp lib/DDHotKey/DDHotKeyTextField.h build/include/
    cp lib/DDHotKey/DDHotKeyUtilities.h build/include/

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 74948a2..3dc36cb 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ all: $(SOURCES) build/libddhotkey.a build/include/*.h
 		-o invert-catalina-invert \
 		$(SOURCES)
 
-build/include/*.h: lib/DDHotKey/*.h
+build/include/%.h: lib/DDHotKey/%.h
 	cp $^ build/include/
 
 lib/DDHotKey/%.o: lib/DDHotKey/%.m