diff --git a/internal/cglfw/build.go b/internal/cglfw/build.go
deleted file mode 100644
index 8853b0ee3..000000000
--- a/internal/cglfw/build.go
+++ /dev/null
@@ -1,40 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-// SPDX-FileCopyrightText: 2012 The glfw3-go Authors
-// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
-
-//go:build darwin || freebsd || linux || netbsd || openbsd
-
-package cglfw
-
-/*
-// Darwin Build Tags
-// ----------------
-// GLFW Options:
-#cgo darwin CFLAGS: -D_GLFW_COCOA -Wno-deprecated-declarations
-
-// Linker Options:
-#cgo darwin LDFLAGS: -framework Cocoa -framework IOKit -framework CoreVideo
-
-// Linux Build Tags
-// ----------------
-// GLFW Options:
-#cgo linux,!wayland CFLAGS: -D_GLFW_X11
-#cgo linux,wayland CFLAGS: -D_GLFW_WAYLAND
-
-// Linker Options:
-#cgo linux,!wayland LDFLAGS: -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -lm -lXinerama -ldl -lrt
-#cgo linux,wayland LDFLAGS: -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon -lm -ldl -lrt
-
-// BSD Build Tags
-// ----------------
-// GLFW Options:
-#cgo freebsd,!wayland netbsd,!wayland openbsd pkg-config: x11 xau xcb xdmcp
-#cgo freebsd,wayland netbsd,wayland pkg-config: wayland-client wayland-cursor wayland-egl epoll-shim
-#cgo freebsd netbsd openbsd CFLAGS: -D_GLFW_HAS_DLOPEN
-#cgo freebsd,!wayland netbsd,!wayland openbsd CFLAGS: -D_GLFW_X11 -D_GLFW_HAS_GLXGETPROCADDRESSARB
-#cgo freebsd,wayland netbsd,wayland CFLAGS: -D_GLFW_WAYLAND
-
-// Linker Options:
-#cgo freebsd netbsd openbsd LDFLAGS: -lm
-*/
-import "C"
diff --git a/internal/cglfw/build_bsd.go b/internal/cglfw/build_bsd.go
new file mode 100644
index 000000000..b4898bcb6
--- /dev/null
+++ b/internal/cglfw/build_bsd.go
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// SPDX-FileCopyrightText: 2012 The glfw3-go Authors
+// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
+
+//go:build freebsd || netbsd || openbsd
+
+package cglfw
+
+import "C"
+
+// #cgo !wayland openbsd pkg-config: x11 xau xcb xdmcp
+// #cgo wayland,!openbsd pkg-config: wayland-client wayland-cursor wayland-egl epoll-shim
+// #cgo CFLAGS: -D_GLFW_HAS_DLOPEN
+// #cgo !wayland openbsd CFLAGS: -D_GLFW_X11 -D_GLFW_HAS_GLXGETPROCADDRESSARB
+// #cgo wayland,!openbsd CFLAGS: -D_GLFW_WAYLAND
+// #cgo LDFLAGS: -lm
+import "C"
diff --git a/internal/cglfw/build_darwin.go b/internal/cglfw/build_darwin.go
new file mode 100644
index 000000000..d70d38842
--- /dev/null
+++ b/internal/cglfw/build_darwin.go
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// SPDX-FileCopyrightText: 2012 The glfw3-go Authors
+// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
+
+package cglfw
+
+// #cgo CFLAGS: -D_GLFW_COCOA -Wno-deprecated-declarations
+// #cgo LDFLAGS: -framework Cocoa -framework IOKit -framework CoreVideo
+import "C"
diff --git a/internal/cglfw/build_linux.go b/internal/cglfw/build_linux.go
new file mode 100644
index 000000000..651dff50d
--- /dev/null
+++ b/internal/cglfw/build_linux.go
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// SPDX-FileCopyrightText: 2012 The glfw3-go Authors
+// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
+
+package cglfw
+
+// #cgo !wayland CFLAGS: -D_GLFW_X11
+// #cgo wayland CFLAGS: -D_GLFW_WAYLAND
+// #cgo !wayland LDFLAGS: -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -lm -lXinerama -ldl -lrt
+// #cgo wayland LDFLAGS: -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon -lm -ldl -lrt
+import "C"