Rename "backend" headers

Working on Vulkan clarified what has always been slightly smelly about the
design and organization here: not everything that is API specific is really in
a "backend" (a PuglBackend).  The concrete example is puglGetProcAddress(),
which only makes sense for GL and is actually implemented in the "backend"
files.  Arguably puglGetContext() is also such a thing.

So, rename the headers so they can be the place where API-specific things go in
general, which happens to include a backend most of the time.  The stub is a
bit of an exception to this, but whatever.  The includes look tidier this way.

In place of the old headers are compatibility stubs that just emit a warning
and include the new version, which will be maintained for a while.

9 files changed, 13 insertions, 13 deletions

diff --git a/pugl/detail/mac.m b/pugl/detail/mac.m
index 7534281..efa4d78 100644
--- a/pugl/detail/mac.m
+++ b/pugl/detail/mac.m
@@ -24,7 +24,7 @@
 #include "pugl/detail/implementation.h"
 #include "pugl/detail/mac.h"
 #include "pugl/pugl.h"
-#include "pugl/pugl_stub_backend.h"
+#include "pugl/pugl_stub.h"
 
 #import <Cocoa/Cocoa.h>
 
diff --git a/pugl/detail/mac_cairo.m b/pugl/detail/mac_cairo.m
index 1e4149c..6b9f36c 100644
--- a/pugl/detail/mac_cairo.m
+++ b/pugl/detail/mac_cairo.m
@@ -20,8 +20,8 @@
 
 #include "pugl/detail/implementation.h"
 #include "pugl/detail/mac.h"
-#include "pugl/pugl_cairo_backend.h"
-#include "pugl/pugl_stub_backend.h"
+#include "pugl/pugl_cairo.h"
+#include "pugl/pugl_stub.h"
 
 #include <cairo-quartz.h>
 
diff --git a/pugl/detail/mac_gl.m b/pugl/detail/mac_gl.m
index f39c25e..428cc1a 100644
--- a/pugl/detail/mac_gl.m
+++ b/pugl/detail/mac_gl.m
@@ -20,8 +20,8 @@
 
 #include "pugl/detail/implementation.h"
 #include "pugl/detail/mac.h"
-#include "pugl/pugl_gl_backend.h"
-#include "pugl/pugl_stub_backend.h"
+#include "pugl/pugl_gl.h"
+#include "pugl/pugl_stub.h"
 
 #ifndef __MAC_10_10
 #define NSOpenGLProfileVersion4_1Core NSOpenGLProfileVersion3_2Core
diff --git a/pugl/detail/win.c b/pugl/detail/win.c
index d7026ae..9debb6d 100644
--- a/pugl/detail/win.c
+++ b/pugl/detail/win.c
@@ -21,7 +21,7 @@
 #include "pugl/detail/implementation.h"
 #include "pugl/detail/win.h"
 #include "pugl/pugl.h"
-#include "pugl/pugl_stub_backend.h"
+#include "pugl/pugl_stub.h"
 
 #include <windows.h>
 #include <windowsx.h>
diff --git a/pugl/detail/win_cairo.c b/pugl/detail/win_cairo.c
index 27765ec..7966b07 100644
--- a/pugl/detail/win_cairo.c
+++ b/pugl/detail/win_cairo.c
@@ -20,7 +20,7 @@
 
 #include "pugl/detail/types.h"
 #include "pugl/detail/win.h"
-#include "pugl/pugl_cairo_backend.h"
+#include "pugl/pugl_cairo.h"
 
 #include <cairo-win32.h>
 #include <cairo.h>
diff --git a/pugl/detail/win_gl.c b/pugl/detail/win_gl.c
index d872303..ee3b032 100644
--- a/pugl/detail/win_gl.c
+++ b/pugl/detail/win_gl.c
@@ -20,8 +20,8 @@
 
 #include "pugl/detail/types.h"
 #include "pugl/detail/win.h"
-#include "pugl/pugl_gl_backend.h"
-#include "pugl/pugl_stub_backend.h"
+#include "pugl/pugl_gl.h"
+#include "pugl/pugl_stub.h"
 
 #include <windows.h>
 
diff --git a/pugl/detail/x11.c b/pugl/detail/x11.c
index 133436c..9256b2e 100644
--- a/pugl/detail/x11.c
+++ b/pugl/detail/x11.c
@@ -26,7 +26,7 @@
 #include "pugl/detail/types.h"
 #include "pugl/detail/x11.h"
 #include "pugl/pugl.h"
-#include "pugl/pugl_stub_backend.h"
+#include "pugl/pugl_stub.h"
 
 #include <X11/X.h>
 #include <X11/Xatom.h>
diff --git a/pugl/detail/x11_cairo.c b/pugl/detail/x11_cairo.c
index 1c7df6e..523a569 100644
--- a/pugl/detail/x11_cairo.c
+++ b/pugl/detail/x11_cairo.c
@@ -21,7 +21,7 @@
 #include "pugl/detail/types.h"
 #include "pugl/detail/x11.h"
 #include "pugl/pugl.h"
-#include "pugl/pugl_cairo_backend.h"
+#include "pugl/pugl_cairo.h"
 
 #include <X11/Xutil.h>
 #include <cairo-xlib.h>
diff --git a/pugl/detail/x11_gl.c b/pugl/detail/x11_gl.c
index a881510..d325f9d 100644
--- a/pugl/detail/x11_gl.c
+++ b/pugl/detail/x11_gl.c
@@ -21,8 +21,8 @@
 #include "pugl/detail/types.h"
 #include "pugl/detail/x11.h"
 #include "pugl/pugl.h"
-#include "pugl/pugl_gl_backend.h"
-#include "pugl/pugl_stub_backend.h"
+#include "pugl/pugl_gl.h"
+#include "pugl/pugl_stub.h"
 
 #include <GL/glx.h>
 #include <X11/X.h>