Add header guards, fixing issue #30

libs/arg.h

@@ -1,3 +1,5 @@
+#ifndef ARG_H
+#define ARG_H
 /* See LICENSE file for copyright and license details. */
 typedef union {
     int i; // integer
@@ -84,3 +86,4 @@ static void toggleimgtype(Arg *arg);
 static void selecthover(Arg *arg);
 static void outputhover(Arg *arg);
 static void markhover(Arg *arg);
+#endif

libs/conf/config.h

@@ -1,3 +1,5 @@
+#ifndef CONFIG_H
+#define CONFIG_H
 /* See LICENSE file for copyright and license details. */
 #if CONFIG
 #if X11
@@ -709,3 +711,4 @@ static void conf_init(void);
 static void theme_load(void);
 static int bind_init(void);
 #endif
+#endif

libs/draw.h

@@ -1,3 +1,5 @@
+#ifndef DRAW_H
+#define DRAW_H
 /* See LICENSE file for copyright and license details. */
 
 // declare functions
@@ -10,3 +12,4 @@ static int drawmode(int x, int y, int w);
 static int drawcaps(int x, int y, int w);
 static int drawlarrow(int x, int y, int w);
 static int drawrarrow(int x, int y, int w);
+#endif

libs/draw/draw.h

@@ -1,3 +1,5 @@
+#ifndef LIBDRAW
+#define LIBDRAW
 /* See LICENSE file for copyright and license details. */
 
 #include <cairo/cairo.h>
@@ -71,3 +73,4 @@ void draw_save_screen(Draw_t *draw, const char *file);
 /* Misc */
 void draw_die(const char *fmt, ...);
 void *draw_calloc(size_t nmemb, size_t size);
+#endif

libs/options.h

@@ -1,3 +1,5 @@
+#ifndef OPTIONS_H
+#define OPTIONS_H
 /* See LICENSE file for copyright and license details. */
 
 /* spmenu options */
@@ -284,3 +286,4 @@ static int incremental                 = 0; /* Print text every time a key is pr
 static int coloritems                  = 1; /* Color items (0/1) */
 static int sgr                         = 1; /* Support SGR sequences (0/1) */
 static char *worddelimiters            = " /?\"&[]"; /* Word delimiters used for keybinds that change words, Space is default. */
+#endif

libs/regex/regex.h

@@ -1,3 +1,5 @@
+#ifndef REGEX_H
+#define REGEX_H
 /*
  *
  * Mini regex-module inspired by Rob Pike's regex code described in:
@@ -63,3 +65,4 @@ int re_match(const char* pattern, const char* text, int* matchlength);
 #endif
 
 #endif /* ifndef _TINY_REGEX_C */
+#endif

libs/schemes.h

@@ -1,3 +1,5 @@
+#ifndef SCHEMES_H
+#define SCHEMES_H
 /* See LICENSE file for copyright and license details. */
 
 static char *textcolors[] = {
@@ -260,3 +262,4 @@ static char *textcolors[] = {
 
 static char *txtcols[256];
 static void init_appearance(void);
+#endif

libs/wl/inc.h

@@ -1,6 +1,9 @@
+#ifndef WL_INC_H
+#define WL_INC_H
 /* See LICENSE file for copyright and license details. */
 
 #if WAYLAND
 #include "wayland.h"
 #include "init.h"
 #endif
+#endif

libs/wl/init.h

@@ -1,3 +1,6 @@
+#ifndef WL_INIT_H
+#define WL_INIT_H
 /* See LICENSE file for copyright and license details. */
 
 static void handle_wl(void);
+#endif

libs/wl/wayland.h

@@ -1,3 +1,5 @@
+#ifndef WAYLAND_H
+#define WAYLAND_H
 /* See LICENSE file for copyright and license details. */
 
 #include <errno.h>
@@ -221,3 +223,4 @@ struct wl_seat_listener seat_listener = {
 static const struct wl_buffer_listener buffer_listener = {
     .release = zero,
 };
+#endif

libs/x11/client.h

@@ -1,3 +1,5 @@
+#ifndef CLIENT_H
+#define CLIENT_H
 /* See LICENSE file for copyright and license details. */
 
 static void hexconv(const char *hex, unsigned short *r, unsigned short *g, unsigned short *b);
@@ -6,3 +8,4 @@ static void set_window_x11(void);
 static void set_prop_x11(void);
 static void resizeclient_x11(void);
 static void xinitvisual(void);
+#endif

libs/x11/clipboard.h

@@ -1,4 +1,7 @@
+#ifndef CLIPBOARD_H
+#define CLIPBOARD_H
 /* See LICENSE file for copyright and license details. */
 
 static void pastesel_x11(void);
 static int paste_x11(int sel);
+#endif

libs/x11/event.h

@@ -1,2 +1,5 @@
+#ifndef EVENT_H
+#define EVENT_H
 /* See LICENSE file for copyright and license details. */
 static void eventloop_x11(void);
+#endif

libs/x11/focus.h

@@ -1,3 +1,6 @@
+#ifndef FOCUS_H
+#define FOCUS_H
 /* See LICENSE file for copyright and license details. */
 
 static void grabfocus_x11(void);
+#endif

libs/x11/inc.h

@@ -1,3 +1,5 @@
+#ifndef X_INC_H
+#define X_INC_H
 /* See LICENSE file for copyright and license details. */
 #if X11
 #include "lib.h"
@@ -11,3 +13,4 @@
 #include "focus.h"
 #include "clipboard.h"
 #endif
+#endif

libs/x11/init.h

@@ -1,3 +1,5 @@
+#ifndef X_INIT_H
+#define X_INIT_H
 /* See LICENSE file for copyright and license details. */
 
 #define CLEANMASK(mask)         (mask & ~(x11.numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
@@ -13,3 +15,4 @@ static void handle_x11(void);
 static void cleanup_x11(Display *disp);
 static void prepare_window_size_x11(void);
 static Display * opendisplay_x11(char *disp);
+#endif

libs/x11/key.h

@@ -1,3 +1,5 @@
+#ifndef KEY_H
+#define KEY_H
 /* See LICENSE file for copyright and license details. */
 
 typedef struct {
@@ -23,3 +25,4 @@ static void getcapsstate(void);
 
 static Key ckeys[256];
 static Key hkeys[1] = { { -1, Ctrl|Alt, XK_Delete, quit, {0} } };
+#endif

libs/x11/lib.h

@@ -1,3 +1,5 @@
+#ifndef LIB_H
+#define LIB_H
 /* See LICENSE file for copyright and license details. */
 
 // include libraries
@@ -18,3 +20,4 @@
 #if XRESOURCES
 #include <X11/Xresource.h>
 #endif
+#endif

libs/x11/mouse.h

@@ -1,3 +1,5 @@
+#ifndef MOUSE_H
+#define MOUSE_H
 /* See LICENSE file for copyright and license details. */
 
 typedef struct {
@@ -9,3 +11,4 @@ typedef struct {
 
 static Mouse cbuttons[256];
 static void buttonpress_x11(XEvent *e);
+#endif

libs/x11/xim.h

@@ -1,5 +1,8 @@
+#ifndef XIM_H
+#define XIM_H
 /* See LICENSE file for copyright and license details. */
 
 static XIC xic;
 
 static void open_xim(void);
+#endif

libs/x11/xrdb.h

@@ -1,3 +1,5 @@
+#ifndef XRDB_H
+#define XRDB_H
 /* See LICENSE file for copyright and license details. */
 
 #if XRESOURCES
@@ -17,3 +19,4 @@ typedef struct {
 static void load_xresources(void);
 static void resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst);
 #endif
+#endif

libs/x11/xresources.h

@@ -1,3 +1,5 @@
+#ifndef XRESOURCES_H
+#define XRESOURCES_H
 /* See LICENSE file for copyright and license details. */
 
 // This .Xresources array is read and compared to the xrdb. Simply add to the array if you need to.
@@ -58,3 +60,4 @@ ResourcePref cols[] = {
     { "color15",                     STRING,  &col_sgr15 },
 };
 #endif
+#endif