Fix includes for Apple

Author: devel-chm

Changes

@@ -1,7 +1,9 @@
 Revision history for Perl extension OpenGL::GLU.
 
 0.02_01 TBD
-
+        - Fix gl.h and glu.h includes for __APPLE__
+          The Apple convention is <OpenGL/gl.h> and <OpenGL/glu.h>
+          where OpenGL is the name of the framework.
 
 0.02    2017-02-13 10:26:37-05:00
         - Change minimum perl version to 5.8

GLU.xs

@@ -15,7 +15,7 @@
 
 #include "const-c.inc"
 
-#if defined(HAVE_AGL_GLUT)
+#if defined(__APPLE__)
 #include <OpenGL/glu.h>
 #else
 #include <GL/glu.h>

Makefile.PL

@@ -1,12 +1,22 @@
 use 5.008;
 use ExtUtils::MakeMaker;
-# See lib/ExtUtils/MakeMaker.pm for details of how to influence
-# the contents of the Makefile that is written.
-my $LIBS = '';
-if ($^O eq 'MSWin32') {
-   $LIBS = '-lopengl32 -lglu32';
-} else {
-   $LIBS = '-lGL -lGLU';
+use Devel::CheckOS qw(os_is);
+my ( $LIBS, $DYNS );
+
+$LIBS = '';
+$DYNS = {};
+
+if ( os_is( 'MSWin32' ) ) {
+    $LIBS   = '-lopengl32 -lglu32';
+}
+elsif ( os_is( 'Cygwin' ) ) {
+    $LIBS = '-lGL -lGLU';
+}
+elsif ( os_is( 'MacOSX' ) ) {
+    $DYNS = { 'OTHERLDFLAGS' => '-framework OpenGL' };
+}
+else {
+    $LIBS = '-lGL -lGLU';
 }
 
 WriteMakefile(
@@ -17,6 +27,7 @@ WriteMakefile(
     AUTHOR            => 'chm@cpan.org',
     LICENSE           => 'perl',
     LIBS              => [$LIBS], # e.g., '-lm'
+    'dynamic_lib'     => $DYNS,
     DEFINE            => '-DGL_OES_EGL_image=1', # e.g., '-DHAVE_SOMETHING'
     INC               => '-I.', # e.g., '-I. -I/usr/include/other'
 	# Un-comment this if you add C files to link with later:

gl_util.h

@@ -3,7 +3,11 @@
 #include "XSUB.h"
 #include "ppport.h"
 
+#if defined(__APPLE__)
+#include <OpenGL/gl.h>
+#else
 #include <GL/gl.h>
+#endif
 
 #ifndef GL_CMYK
 #define GL_CMYK GL_CMYK_EXT