diff --git a/backends/platform/libretro/Makefile b/backends/platform/libretro/Makefile
index 420a520c804..4c03a5989b6 100644
--- a/backends/platform/libretro/Makefile
+++ b/backends/platform/libretro/Makefile
@@ -45,7 +45,7 @@ ifeq ($(platform), rpi3_64)
    LDFLAGS += -shared -Wl,--version-script=$(ROOT_PATH)/link.T -fPIC
    CFLAGS  += -fPIC -mcpu=cortex-a53 -mtune=cortex-a53 -fomit-frame-pointer -ffast-math
    CXXFLAGS = $(CFLAGS) -frtti -std=c++11
-   HAVE_OPENGLES2 :=1
+   HAVE_OPENGLES2 := 1
 
 # Raspberry Pi 4 (64 bit)
 else ifeq ($(platform), rpi4_64)
@@ -477,6 +477,7 @@ else ifeq ($(platform), win)
    DEFINES += -DHAVE_FSEEKO -DHAVE_INTTYPES_H -fPIC
    CXXFLAGS += -fno-permissive
    LDFLAGS += -shared -static-libgcc -static-libstdc++ -s -Wl,--version-script=$(ROOT_PATH)/link.T -fPIC
+   GLLIB := -lopengl32
 ifneq ($(TARGET_64BIT),1)
    DEFINES += -DRETRO_CALLCONV=__cdecl
 endif
@@ -488,6 +489,7 @@ else ifeq ($(platform), osx)
    LDFLAGS += -dynamiclib -fPIC
    CXXFLAGS := -std=c++11
    HAVE_OPENGL := 1
+   GLLIB := -framework OpenGL
    ifeq ($(CROSS_COMPILE),1)
       TARGET_RULE   = -target $(LIBRETRO_APPLE_PLATFORM) -isysroot $(LIBRETRO_APPLE_ISYSROOT)
       CFLAGS   += $(TARGET_RULE)
diff --git a/backends/platform/libretro/Makefile.common b/backends/platform/libretro/Makefile.common
index fda36f068f2..00d10151add 100644
--- a/backends/platform/libretro/Makefile.common
+++ b/backends/platform/libretro/Makefile.common
@@ -140,21 +140,21 @@ ifeq ($(or $(HAVE_OPENGL), $(HAVE_OPENGLES2)), 1)
    DEFINES += -DUSE_OPENGL -DUSE_OPENGL_GAME -DUSE_OPENGL_SHADERS
 ifeq ($(HAVE_OPENGL), 1)
    DEFINES += -DHAVE_OPENGL
-   GLES_MODE:= 0
-   GLLIB := -lGL
+   GLES_MODE := 0
+   GLLIB ?= -lGL
    $(info Support for OpenGL requested)
 else
    DEFINES += -DHAVE_OPENGLES2
-   GLES_MODE:= 2
-   GLLIB := -lGLESv2
+   GLES_MODE := 2
+   GLLIB ?= -lGLESv2
    $(info Support for OpenGLES2 requested)
 endif
 
 ifeq ($(USE_GLAD), 1)
     DEFINES += -DUSE_GLAD
-#else
-#    DEFINES += -DUSE_GLES_MODE=$(GLES_MODE)
-#    LDFLAGS += $(GLLIB)
+else
+    DEFINES += -DUSE_GLES_MODE=$(GLES_MODE)
+    LDFLAGS += $(GLLIB)
 endif
 
 else
diff --git a/backends/platform/libretro/include/portdefs.h b/backends/platform/libretro/include/portdefs.h
index b56aa67e0d8..7c39a76418a 100644
--- a/backends/platform/libretro/include/portdefs.h
+++ b/backends/platform/libretro/include/portdefs.h
@@ -62,4 +62,5 @@
 #define GL_STACK_OVERFLOW_KHR GL_STACK_OVERFLOW
 #define GL_STACK_UNDERFLOW_KHR GL_STACK_UNDERFLOW
 #include "glsym/glsym.h"
+#undef TRANSPARENT
 #endif