From 37cc8d21ac7340c07617e83565d83515d46f1141 Mon Sep 17 00:00:00 2001
From: Mustafa Mohamad <mus-m@outlook.com>
Date: Fri, 30 Apr 2021 19:20:12 -0400
Subject: [PATCH] Add back build time check for debugging

---
 deps/build.jl          |  4 ++++
 src/ModernGL.jl        |  6 ------
 src/functionloading.jl | 10 +++++++++-
 3 files changed, 13 insertions(+), 7 deletions(-)
 create mode 100644 deps/build.jl

diff --git a/deps/build.jl b/deps/build.jl
new file mode 100644
index 0000000..f922a21
--- /dev/null
+++ b/deps/build.jl
@@ -0,0 +1,4 @@
+debug_level = lowercase(get(ENV, "MODERNGL_DEBUGGING", "false")) == "true"
+open(joinpath(@__DIR__, "deps.jl"), "w") do io
+    println(io, "const enable_opengl_debugging = $debug_level")
+end
diff --git a/src/ModernGL.jl b/src/ModernGL.jl
index 8113c1f..1f77b59 100644
--- a/src/ModernGL.jl
+++ b/src/ModernGL.jl
@@ -90,14 +90,8 @@ macro GenEnums(list)
     esc(Expr(:block, enumtype, tmp..., Expr(:export, :($(enumName)))))
 end
 
-const enable_opengl_debugging = Ref(false)
-
 include("glTypes.jl")
 include("functionloading.jl")
 include("glConstants.jl")
 
-function __init__()
-    enable_opengl_debugging[] = lowercase(get(ENV, "MODERNGL_DEBUGGING", "false")) == "true"
-end
-
 end # module
diff --git a/src/functionloading.jl b/src/functionloading.jl
index 504453d..ad57801 100644
--- a/src/functionloading.jl
+++ b/src/functionloading.jl
@@ -1,8 +1,16 @@
+const depsfile = joinpath("..", "deps", "deps.jl")
+
+if isfile(depsfile)
+    include(depsfile)
+else
+    const enable_opengl_debugging = get(ENV, "MODERNGL_DEBUGGING", "false") == "true"
+end
+
 gl_represent(x::GLenum) = GLENUM(x).name
 gl_represent(x) = repr(x)
 
 function debug_opengl_expr(func_name, args)
-    if enable_opengl_debugging[] && func_name != :glGetError
+    if enable_opengl_debugging && func_name != :glGetError
         quote
             err = glGetError()
             if err != GL_NO_ERROR