Ports: Remove LibGL workarounds

Now that ports can find our OpenGL headers and shared library, remove
all configuration and patches that was previously needed to make ports
compile with LibGL.

Ports/glu/package.sh

@@ -9,10 +9,9 @@ configopts=(
     "--cross-file=${SERENITY_BUILD_DIR}/meson-cross-file.txt"
     "--prefix=${SERENITY_INSTALL_ROOT}/usr/local"
     '-Dbuildtype=release'
+    '-Dgl_provider=gl'
 )
 
-export CPPFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/include/LibGL"
-
 configure() {
     run meson setup "${configopts[@]}" build
 }

Ports/glu/patches/0001-Build-Manually-find-LibGL.patch

@@ -1,37 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Jelle Raaijmakers <jelle@gmta.nl>
-Date: Sun, 11 Feb 2024 22:25:59 +0100
-Subject: [PATCH] Build: Manually find LibGL
-
-We don't have a working pkgconfig to find it, so get rid of it and
-manually find the library using the C compiler.
----
- meson.build | 11 ++---------
- 1 file changed, 2 insertions(+), 9 deletions(-)
-
-diff --git a/meson.build b/meson.build
-index 7949e300ac60e0ff6955dedfd9a050cfa3010f4a..18dd4f497e7a43be3e36915bb5430e8891a3a9fb 100644
---- a/meson.build
-+++ b/meson.build
-@@ -18,7 +18,8 @@ gl_provider = get_option('gl_provider')
- if gl_provider == 'glvnd'
-   gl_provider = 'opengl'
- endif
--dep_gl = dependency(gl_provider)
-+cc = meson.get_compiler('c')
-+dep_gl = cc.find_library('gl', has_headers : 'GL/gl.h')
- 
- inc_include = include_directories('include')
- 
-@@ -28,11 +29,3 @@ install_headers(
-   'include/GL/glu.h',
-   subdir : 'GL',
- )
--
--pkgconf = import('pkgconfig')
--pkgconf.generate(
--  libglu,
--  name : 'glu',
--  description : 'Mesa OpenGL Utility Library',
--  requires: dep_gl
--)

Ports/glu/patches/0001-Build-Remove-pkgconfig.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jelle Raaijmakers <jelle@gmta.nl>
+Date: Sun, 11 Feb 2024 22:25:59 +0100
+Subject: [PATCH] Build: Remove pkgconfig
+
+We can't use pkgconfig here since the OpenGL dependency we find is
+incompatible with it as an argument.
+---
+ meson.build | 8 --------
+ 1 file changed, 8 deletions(-)
+
+diff --git a/meson.build b/meson.build
+index 7949e300ac60e0ff6955dedfd9a050cfa3010f4a..eed52aea0419aa4efa7ae6d4e71cac4bc28a7b79 100644
+--- a/meson.build
++++ b/meson.build
+@@ -28,11 +28,3 @@ install_headers(
+   'include/GL/glu.h',
+   subdir : 'GL',
+ )
+-
+-pkgconf = import('pkgconfig')
+-pkgconf.generate(
+-  libglu,
+-  name : 'glu',
+-  description : 'Mesa OpenGL Utility Library',
+-  requires: dep_gl
+-)

Ports/glu/patches/ReadMe.md

@@ -1,11 +1,11 @@
 # Patches for glu on SerenityOS
 
-## `0001-Build-Manually-find-LibGL.patch`
+## `0001-Build-Remove-pkgconfig.patch`
 
-Build: Manually find LibGL
+Build: Remove pkgconfig
 
-We don't have a working pkgconfig to find it, so get rid of it and
-manually find the library using the C compiler.
+We can't use pkgconfig here since the OpenGL dependency we find is
+incompatible with it as an argument.
 
 ## `0002-Build-Do-not-hide-symbols-by-default.patch`