Add missing include guards

10 files changed, 48 insertions, 3 deletions

diff --git a/examples/cube_view.h b/examples/cube_view.h
index cf930a4..87bf3b5 100644
--- a/examples/cube_view.h
+++ b/examples/cube_view.h
@@ -14,6 +14,9 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
+#ifndef EXAMPLES_CUBE_VIEW_H
+#define EXAMPLES_CUBE_VIEW_H
+
 #define GL_SILENCE_DEPRECATION 1
 
 #include "demo_utils.h"
@@ -129,3 +132,5 @@ displayCube(PuglView* const view,
 	glDrawArrays(GL_LINES, 0, 8);
 	glDisableClientState(GL_VERTEX_ARRAY);
 }
+
+#endif // EXAMPLES_CUBE_VIEW_H
diff --git a/examples/demo_utils.h b/examples/demo_utils.h
index 925753a..9057a32 100644
--- a/examples/demo_utils.h
+++ b/examples/demo_utils.h
@@ -14,8 +14,8 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
-#ifndef PUGL_DEMO_UTILS_H
-#define PUGL_DEMO_UTILS_H
+#ifndef EXAMPLES_DEMO_UTILS_H
+#define EXAMPLES_DEMO_UTILS_H
 
 #include "pugl/pugl.h"
 
@@ -123,4 +123,4 @@ puglPrintFps(const PuglWorld* world,
 	}
 }
 
-#endif // PUGL_DEMO_UTILS_H
+#endif // EXAMPLES_DEMO_UTILS_H
diff --git a/examples/rects.h b/examples/rects.h
index f760226..f53698c 100644
--- a/examples/rects.h
+++ b/examples/rects.h
@@ -22,6 +22,9 @@
    many 2D rectangles.
 */
 
+#ifndef EXAMPLES_RECTS_H
+#define EXAMPLES_RECTS_H
+
 #include <math.h>
 #include <stddef.h>
 
@@ -80,3 +83,5 @@ moveRect(Rect* const  rect,
 	               (cosf((float)time * rect->size[1] / 64.0f + normal) + 1.0f) /
 	               2.0f;
 }
+
+#endif // EXAMPLES_RECTS_H
diff --git a/examples/shader_utils.h b/examples/shader_utils.h
index 10a7ace..217ba47 100644
--- a/examples/shader_utils.h
+++ b/examples/shader_utils.h
@@ -14,6 +14,9 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
+#ifndef EXAMPLES_SHADER_UTILS_H
+#define EXAMPLES_SHADER_UTILS_H
+
 #include "glad/glad.h"
 
 #include <stdio.h>
@@ -100,3 +103,5 @@ compileProgram(const char* headerSource,
 
 	return program;
 }
+
+#endif // EXAMPLES_SHADER_UTILS_H
diff --git a/include/pugl/detail/mac.h b/include/pugl/detail/mac.h
index 7b64cfe..55f24ca 100644
--- a/include/pugl/detail/mac.h
+++ b/include/pugl/detail/mac.h
@@ -20,6 +20,9 @@
    @brief Shared definitions for MacOS implementation.
 */
 
+#ifndef PUGL_DETAIL_MAC_H
+#define PUGL_DETAIL_MAC_H
+
 #include "pugl/pugl.h"
 
 #import <Cocoa/Cocoa.h>
@@ -53,3 +56,5 @@ struct PuglInternalsImpl {
 	uint32_t         mods;
 	bool             mouseTracked;
 };
+
+#endif // PUGL_DETAIL_MAC_H
diff --git a/include/pugl/detail/win.h b/include/pugl/detail/win.h
index b0d92e0..0ead1fa 100644
--- a/include/pugl/detail/win.h
+++ b/include/pugl/detail/win.h
@@ -19,6 +19,9 @@
    @brief Shared definitions for Windows implementation.
 */
 
+#ifndef PUGL_DETAIL_WIN_H
+#define PUGL_DETAIL_WIN_H
+
 #include "pugl/detail/implementation.h"
 
 #include <windows.h>
@@ -145,3 +148,5 @@ puglWinStubEnter(PuglView* view, const PuglEventExpose* expose);
 
 PuglStatus
 puglWinStubLeave(PuglView* view, const PuglEventExpose* expose);
+
+#endif // PUGL_DETAIL_WIN_H
diff --git a/include/pugl/detail/x11.h b/include/pugl/detail/x11.h
index b5ca75c..9788191 100644
--- a/include/pugl/detail/x11.h
+++ b/include/pugl/detail/x11.h
@@ -19,6 +19,9 @@
    @brief Shared definitions for X11 implementation.
 */
 
+#ifndef PUGL_DETAIL_X11_H
+#define PUGL_DETAIL_X11_H
+
 #include "pugl/detail/types.h"
 #include "pugl/pugl.h"
 
@@ -74,3 +77,5 @@ struct PuglInternalsImpl {
 };
 
 PuglStatus puglX11StubConfigure(PuglView* view);
+
+#endif // PUGL_DETAIL_X11_H
diff --git a/include/pugl/gl.h b/include/pugl/gl.h
index 9f7a741..17352e1 100644
--- a/include/pugl/gl.h
+++ b/include/pugl/gl.h
@@ -22,6 +22,9 @@
    pure portable programs.
 */
 
+#ifndef PUGL_GL_H
+#define PUGL_GL_H
+
 // IWYU pragma: begin_exports
 
 #ifdef __APPLE__
@@ -34,3 +37,5 @@
 #endif
 
 // IWYU pragma: end_exports
+
+#endif // PUGL_GL_H
diff --git a/include/pugl/glu.h b/include/pugl/glu.h
index 423a917..b67b7a0 100644
--- a/include/pugl/glu.h
+++ b/include/pugl/glu.h
@@ -22,6 +22,9 @@
    pure portable programs.
 */
 
+#ifndef PUGL_GLU_H
+#define PUGL_GLU_H
+
 // IWYU pragma: begin_exports
 
 #ifdef __APPLE__
@@ -34,3 +37,5 @@
 #endif
 
 // IWYU pragma: end_exports
+
+#endif // PUGL_GLU_H
diff --git a/test/test_utils.h b/test/test_utils.h
index 6148d84..42b9ef9 100644
--- a/test/test_utils.h
+++ b/test/test_utils.h
@@ -14,6 +14,9 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
+#ifndef TEST_TEST_UTILS_H
+#define TEST_TEST_UTILS_H
+
 #define __STDC_FORMAT_MACROS 1
 
 #include "pugl/pugl.h"
@@ -345,3 +348,5 @@ puglParseTestOptions(int* pargc, char*** pargv)
 
 	return opts;
 }
+
+#endif // TEST_TEST_UTILS_H