OSX: Added missing library.

premake/geometryc.lua

@@ -21,4 +21,9 @@ project "geometryc"
 		BGFX_DIR .. "tools/geometryc/**.h",
 	}
 
+	configuration { "osx" }
+		links {
+			"Cocoa.framework",
+		}
+
 	strip()

premake/shaderc.lua

@@ -32,6 +32,11 @@ project "shaderc"
 			"-fno-strict-aliasing" -- glsl-optimizer has bugs if strict aliasing is used.
 		}
 
+	configuration { "osx" }
+		links {
+			"Cocoa.framework",
+		}
+
 	configuration { "windows", "vs*" }
 		includedirs {
 			GLSL_OPTIMIZER .. "include/c99",

premake/texturec.lua

@@ -22,3 +22,8 @@ project "texturec"
 	links {
 --		"bgfx",
 	}
+
+	configuration { "osx" }
+		links {
+			"Cocoa.framework",
+		}