SDL: cmake: Enable POSIX fsops code for PS2 and PSP.

SDL Commits
1 
From 16113374ff6f532da5d84e0007a724d0ff272d72 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Wed, 27 Nov 2024 20:07:53 -0500
Subject: [PATCH] cmake: Enable POSIX fsops code for PS2 and PSP.

---
 CMakeLists.txt | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2029c89d96744..d83a7e59509d0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2672,7 +2672,9 @@ elseif(PSP)
   sdl_glob_sources("${SDL3_SOURCE_DIR}/src/filesystem/psp/*.c")
   set(HAVE_SDL_FILESYSTEM TRUE)
 
-  # !!! FIXME: do we need a FSops implementation for this?
+  set(SDL_FSOPS_POSIX 1)
+  sdl_sources("${SDL3_SOURCE_DIR}/src/filesystem/posix/SDL_sysfsops.c")
+  set(HAVE_SDL_FSOPS TRUE)
 
   if(SDL_JOYSTICK)
     set(SDL_JOYSTICK_PSP 1)
@@ -2745,7 +2747,9 @@ elseif(PS2)
   sdl_glob_sources("${SDL3_SOURCE_DIR}/src/filesystem/ps2/*.c")
   set(HAVE_SDL_FILESYSTEM TRUE)
 
-  # !!! FIXME: do we need a FSops implementation for this?
+  set(SDL_FSOPS_POSIX 1)
+  sdl_sources("${SDL3_SOURCE_DIR}/src/filesystem/posix/SDL_sysfsops.c")
+  set(HAVE_SDL_FSOPS TRUE)
 
   if(SDL_JOYSTICK)
     set(SDL_JOYSTICK_PS2 1)