fix tests + last depwarns

src/ModernGL.jl

@@ -1,6 +1,8 @@
 __precompile__(true)
 module ModernGL
 
+using Libdl
+
 function glXGetProcAddress(glFuncName)
     ccall((:glXGetProcAddress, "libGL.so.1"), Ptr{Cvoid}, (Ptr{UInt8},), glFuncName)
 end
@@ -18,12 +20,12 @@ function wglGetProcAddress(glFuncName)
     ccall((:wglGetProcAddress, "opengl32"), Ptr{Cvoid}, (Ptr{UInt8},), glFuncName)
 end
 
-if is_apple()
+if Sys.isapple()
     getprocaddress(glFuncName) = NSGetProcAddress(glFuncName)
-elseif is_unix()
+elseif Sys.isunix()
     getprocaddress(glFuncName) = glXGetProcAddress(glFuncName)
 end
-if is_windows()
+if Sys.iswindows()
     getprocaddress(glFuncName) = wglGetProcAddress(glFuncName)
 end
 
@@ -76,7 +78,7 @@ macro GenEnums(list)
             name::Symbol
         end
         $(dictname) = $enumdict1
-        function $(enumName){T}(number::T)
+        function $(enumName)(number::T) where T
             if !haskey($(dictname), number)
                 error("$number is not a GLenum")
             end

src/functionloading.jl

@@ -16,7 +16,7 @@ macro glfunc(opengl_func)
     func_name_str   = string(func_name)
     ptr_expr        = :(getprocaddress_e($func_name_str))
 
-    if is_windows() # windows has some function pointers statically available and some not, this is how we deal with it:
+    if Sys.iswindows() # windows has some function pointers statically available and some not, this is how we deal with it:
         ptr = Libdl.dlsym_e(gl_lib, func_name)
         if (ptr != C_NULL)
             ptr_expr = :(($func_name_sym, "opengl32"))
@@ -42,10 +42,10 @@ macro glfunc(opengl_func)
         end
     return esc(ret)
 end
-if is_windows()
+if Sys.iswindows()
     const gl_lib = Libdl.dlopen("opengl32")
 end
 include("glFunctions.jl")
-if is_windows()
+if Sys.iswindows()
     Libdl.dlclose(gl_lib)
 end

test/runtests.jl

@@ -23,9 +23,9 @@ if !is_ci() # only do test if not CI... this is for automated testing environmen
     println(createcontextinfo())
     # The data for our triangle
     data = GLfloat[
-    0.0, 0.5,
-    0.5, -0.5,
-    -0.5,-0.5
+        0.0, 0.5,
+        0.5, -0.5,
+        -0.5,-0.5
     ]
     # Generate a vertex array and array buffer for our data
     vao = glGenVertexArray()
@@ -37,15 +37,15 @@ if !is_ci() # only do test if not CI... this is for automated testing environmen
     const vsh = """
     $(get_glsl_version_string())
     in vec2 position;
-    Cvoid main() {
-    gl_Position = vec4(position, 0.0, 1.0);
+    void main() {
+        gl_Position = vec4(position, 0.0, 1.0);
     }
     """
     const fsh = """
     $(get_glsl_version_string())
     out vec4 outColor;
-    Cvoid main() {
-    outColor = vec4(1.0, 1.0, 1.0, 1.0);
+    void main() {
+        outColor = vec4(1.0, 1.0, 1.0, 1.0);
     }
     """
     vertexShader = createShader(vsh, GL_VERTEX_SHADER)