fix: comment out main, so there is only one main signature.

dwm.c also has a main function defined.

.gitignore

@@ -0,0 +1,20 @@
+# Ignore dotfiles by default
+.*
+
+# Ignore common (generated) file types
+*.a
+*.o
+*.d
+*.so
+*.out
+*.hex
+*.gz
+
+# Ignore specific project files
+compile_commands.json
+/bin/
+/config.mk
+
+# Unignore specific files.
+!.gitignore
+!.clang-format

COPYING

@@ -1,5 +1,6 @@
 MIT/X Consortium License
 
+© 2010-2026 Hiltjo Posthuma <hiltjo@codemadness.org>
 © 2006-2019 Anselm R Garbe <anselm@garbe.ca>
 © 2006-2009 Jukka Salmi <jukka at salmi dot ch>
 © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
@@ -11,7 +12,6 @@ MIT/X Consortium License
 © 2008 Martin Hurton <martin dot hurton at gmail dot com>
 © 2008 Neale Pickett <neale dot woozle dot org>
 © 2009 Mate Nagy <mnagy at port70 dot net>
-© 2010-2016 Hiltjo Posthuma <hiltjo@codemadness.org>
 © 2010-2012 Connor Lane Smith <cls@lubutu.com>
 © 2011 Christoph Lohmann <20h@r-36.net>
 © 2015-2016 Quentin Rameau <quinq@fifth.space>

Makefile

@@ -1,45 +1,92 @@
 # dwm - dynamic window manager
 # See LICENSE file for copyright and license details.
 
-include config.mk
+-include config.mk
 
-SRC = drw.c dwm.c util.c
-OBJ = ${SRC:.c=.o}
+VERSION = 6.7
 
-all: dwm
+INSTALL ?= install
+GZIP    ?= gzip
+TAR     ?= tar
 
-.c.o:
-	${CC} -c ${CFLAGS} $<
+CFLAGS   := -Os $(CFLAGS) -g -std=gnu99\
+	    -Wall -Wextra -Wpedantic -Wno-pointer-arith
+CPPFLAGS := -DNDEBUG $(CPPFLAGS)\
+	    -DVERSION=\"$(VERSION)\" -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=700L -DXINERAMA
+LDFLAGS  := -flto $(LDFLAGS)
+LDLIBS   := $(LDLIBS) -lm
 
-${OBJ}: config.h config.mk
+# Use pkg-config to locate dependencies, and set the correct flags.
+ifeq (,$(shell command -v pkg-config))
+$(error Failed to locate pkg-config, please make sure it is installed or acessible through PATH.)
+else
+CPPFLAGS += $(shell pkg-config --cflags-only-I fontconfig freetype2 x11 xft xinerama)
+LDFLAGS  += $(shell pkg-config --libs-only-L   fontconfig freetype2 x11 xft xinerama)
+LDLIBS   += $(shell pkg-config --libs-only-l   fontconfig freetype2 x11 xft xinerama)
+endif
 
-config.h:
-	cp config.def.h $@
+SRC := $(wildcard src/*.c)
+OBJ := $(addsuffix .o,$(SRC))
+DEP := $(addsuffix .d,$(SRC))
 
-dwm: ${OBJ}
-	${CC} -o $@ ${OBJ} ${LDFLAGS}
+# Set Q to @ to silence commands being printed, unless --no-silent has been set
+ifeq (0, $(words $(findstring --no-silent,$(MAKEFLAGS))))
+Q=@
+endif
 
-clean:
-	rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
+msg = @printf '%-8s %s\n' "$(1)" "$(2)"
 
-dist: clean
-	mkdir -p dwm-${VERSION}
-	cp -R LICENSE Makefile README config.def.h config.mk\
-		dwm.1 drw.h util.h ${SRC} dwm.png transient.c dwm-${VERSION}
-	tar -cf dwm-${VERSION}.tar dwm-${VERSION}
-	gzip dwm-${VERSION}.tar
-	rm -rf dwm-${VERSION}
+.PHONY:
+all: bin/dwm
 
-install: all
-	mkdir -p ${DESTDIR}${PREFIX}/bin
-	cp -f dwm ${DESTDIR}${PREFIX}/bin
-	chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
-	mkdir -p ${DESTDIR}${MANPREFIX}/man1
-	sed "s/VERSION/${VERSION}/g" < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
-	chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1
+.PHONY:
+install: $(DESTDIR)/bin/dwm $(DESTDIR)/share/man/man1/dwm.1.gz
+$(DESTDIR)/bin/%: bin/%
+	$(call msg,INSTALL,$@)
+	$(Q)$(INSTALL) -D -m0755 $< $@
 
+$(DESTDIR)/share/man/%: man/%
+	$(call msg,INSTALL,$@)
+	$(Q)$(INSTALL) -D -m0644 $< $@
+
+.PHONY:
 uninstall:
-	rm -f ${DESTDIR}${PREFIX}/bin/dwm\
-		${DESTDIR}${MANPREFIX}/man1/dwm.1
+	$(Q)$(RM) $(DESTDIR)/bin/dwm\
+		$(DESTDIR)/share/man/man1/dwm.1.gz
 
-.PHONY: all clean dist install uninstall
+.PHONY:
+clean:
+	$(call msg,CLEAN,src/)
+	$(Q)$(RM) $(OBJ)
+	$(call msg,CLEAN,man/)
+	$(Q)$(RM) $(MAN)
+	$(call msg,CLEAN,bin/)
+	$(Q)$(RM) -r bin/
+
+# Links together the object files into the final binary.
+bin/dwm: $(OBJ) | bin/
+	$(call msg,LD,$@)
+	$(Q)$(CC) $(LDFLAGS) $(LDLIBS) -o $@ $^
+
+# Compiles C sources into Object files
+%.c.o: %.c
+	$(call msg,CC,$@)
+	$(Q)$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
+# Compress files requested for compression using GZIP
+%.gz: %
+	$(call msg,GZIP,$@)
+	$(Q)$(GZIP) -k $<
+
+# Create directories
+%/:
+	$(call msg-mkdir,$@)
+	$(Q)mkdir $@
+
+# Generate and include dependencies,
+# ignoring any errors that may occur when doing so.
+%.c.d: %.c
+	$(Q)$(CC) -MM $(CPPFLAGS) -MF $@ $<
+ifeq (0, $(words $(findstring $(MAKECMDGOALS), clean)))
+-include $(DEP)
+endif

config.mk

@@ -1,39 +0,0 @@
-# dwm version
-VERSION = 6.6
-
-# Customize below to fit your system
-
-# paths
-PREFIX = /usr/local
-MANPREFIX = ${PREFIX}/share/man
-
-X11INC = /usr/X11R6/include
-X11LIB = /usr/X11R6/lib
-
-# Xinerama, comment if you don't want it
-XINERAMALIBS  = -lXinerama
-XINERAMAFLAGS = -DXINERAMA
-
-# freetype
-FREETYPELIBS = -lfontconfig -lXft
-FREETYPEINC = /usr/include/freetype2
-# OpenBSD (uncomment)
-#FREETYPEINC = ${X11INC}/freetype2
-#MANPREFIX = ${PREFIX}/man
-
-# includes and libs
-INCS = -I${X11INC} -I${FREETYPEINC}
-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
-
-# flags
-CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
-#CFLAGS   = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
-CFLAGS   = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os ${INCS} ${CPPFLAGS}
-LDFLAGS  = ${LIBS}
-
-# Solaris
-#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
-#LDFLAGS = ${LIBS}
-
-# compiler and linker
-CC = cc

src/config.h

@@ -36,6 +36,7 @@ static const float mfact     = 0.55; /* factor of master area size [0.05..0.95]
 static const int nmaster     = 1;    /* number of clients in master area */
 static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
 static const int lockfullscreen = 1; /* 1 will force focus on the fullscreen window */
+static const int refreshrate = 120;  /* refresh rate (per second) for client move/resize */
 
 static const Layout layouts[] = {
 	/* symbol     arrange function */

src/drw.c

@@ -178,8 +178,7 @@ drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
 		die("error, cannot allocate color '%s'", clrname);
 }
 
-/* Wrapper to create color schemes. The caller has to call free(3) on the
- * returned color scheme when done using it. */
+/* Create color schemes. */
 Clr *
 drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
 {
@@ -187,7 +186,7 @@ drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
 	Clr *ret;
 
 	/* need at least two colors for a scheme */
-	if (!drw || !clrnames || clrcount < 2 || !(ret = ecalloc(clrcount, sizeof(XftColor))))
+	if (!drw || !clrnames || clrcount < 2 || !(ret = ecalloc(clrcount, sizeof(Clr))))
 		return NULL;
 
 	for (i = 0; i < clrcount; i++)
@@ -195,6 +194,30 @@ drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
 	return ret;
 }
 
+void
+drw_clr_free(Drw *drw, Clr *c)
+{
+	if (!drw || !c)
+		return;
+
+	/* c is typedef XftColor Clr */
+	XftColorFree(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
+	             DefaultColormap(drw->dpy, drw->screen), c);
+}
+
+void
+drw_scm_free(Drw *drw, Clr *scm, size_t clrcount)
+{
+	size_t i;
+
+	if (!drw || !scm)
+		return;
+
+	for (i = 0; i < clrcount; i++)
+		drw_clr_free(drw, &scm[i]);
+	free(scm);
+}
+
 void
 drw_setfontset(Drw *drw, Fnt *set)
 {

src/drw.h

@@ -40,7 +40,9 @@ void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned in
 
 /* Colorscheme abstraction */
 void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
+void drw_clr_free(Drw *drw, Clr *c);
 Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount);
+void drw_scm_free(Drw *drw, Clr *scm, size_t clrcount);
 
 /* Cursor abstraction */
 Cur *drw_cur_create(Drw *drw, int shape);

src/dwm.c

@@ -486,7 +486,7 @@ cleanup(void)
 	for (i = 0; i < CurLast; i++)
 		drw_cur_free(drw, cursor[i]);
 	for (i = 0; i < LENGTH(colors); i++)
-		free(scheme[i]);
+		drw_scm_free(drw, scheme[i], 3);
 	free(scheme);
 	XDestroyWindow(dpy, wmcheckwin);
 	drw_free(drw);
@@ -864,13 +864,14 @@ Atom
 getatomprop(Client *c, Atom prop)
 {
 	int di;
-	unsigned long dl;
+	unsigned long nitems, dl;
 	unsigned char *p = NULL;
 	Atom da, atom = None;
 
 	if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
-		&da, &di, &dl, &dl, &p) == Success && p) {
-		atom = *(Atom *)p;
+		&da, &di, &nitems, &dl, &p) == Success && p) {
+		if (nitems > 0)
+			atom = *(Atom *)p;
 		XFree(p);
 	}
 	return atom;
@@ -1171,7 +1172,7 @@ movemouse(const Arg *arg)
 			handler[ev.type](&ev);
 			break;
 		case MotionNotify:
-			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+			if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate))
 				continue;
 			lasttime = ev.xmotion.time;
 
@@ -1325,7 +1326,7 @@ resizemouse(const Arg *arg)
 			handler[ev.type](&ev);
 			break;
 		case MotionNotify:
-			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+			if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate))
 				continue;
 			lasttime = ev.xmotion.time;
 

src/transient.c

@@ -5,6 +5,7 @@
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 
+/*
 int main(void) {
 	Display *d;
 	Window r, f, t = None;
@@ -40,3 +41,4 @@ int main(void) {
 	XCloseDisplay(d);
 	exit(0);
 }
+*/