diff --git a/CMakeLists.txt b/CMakeLists.txt
index ca652ca09..6998ef3a6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -330,7 +330,7 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
 	find_function(localtime_r)
 	# The strtof_l on Linux not actually exposed nor actually strtof_l
 	set(HAVE_STRTOF_L OFF)
-elseif(NOT DEFINED PSP2)
+else()
 	find_function(localtime_r)
 	find_function(strtof_l)
 endif()
diff --git a/src/platform/psp2/CMakeLists.txt b/src/platform/psp2/CMakeLists.txt
index 60d37e070..393f63a4d 100644
--- a/src/platform/psp2/CMakeLists.txt
+++ b/src/platform/psp2/CMakeLists.txt
@@ -3,7 +3,7 @@ include("${VITASDK}/share/vita.cmake" REQUIRED)
 find_program(OBJCOPY ${cross_prefix}objcopy)
 find_file(NIDDB db.json PATHS ${VITASDK} ${VITASDK}/bin ${VITASDK}/share)
 
-set(OS_DEFINES IOAPI_NO_64)
+set(OS_DEFINES IOAPI_NO_64 _GNU_SOURCE)
 set(OS_DEFINES ${OS_DEFINES} PARENT_SCOPE)
 
 file(GLOB OS_SRC ${CMAKE_CURRENT_SOURCE_DIR}/psp2-*.c)
diff --git a/src/platform/psp2/sce-vfs.c b/src/platform/psp2/sce-vfs.c
index 22b05950f..d5a52f177 100644
--- a/src/platform/psp2/sce-vfs.c
+++ b/src/platform/psp2/sce-vfs.c
@@ -90,7 +90,7 @@ struct VFile* VFileOpenSce(const char* path, int flags, SceMode mode) {
 
 bool _vfsceClose(struct VFile* vf) {
 	struct VFileSce* vfsce = (struct VFileSce*) vf;
-	sceIoSyncByFd(vfsce->fd);
+	sceIoSyncByFd(vfsce->fd, 0);
 	return sceIoClose(vfsce->fd) >= 0;
 }
 
@@ -128,7 +128,7 @@ static void _vfsceUnmap(struct VFile* vf, void* memory, size_t size) {
 	sceIoLseek(vfsce->fd, 0, SEEK_SET);
 	sceIoWrite(vfsce->fd, memory, size);
 	sceIoLseek(vfsce->fd, cur, SEEK_SET);
-	sceIoSyncByFd(vfsce->fd);
+	sceIoSyncByFd(vfsce->fd, 0);
 	mappedMemoryFree(memory, size);
 }
 
@@ -155,7 +155,7 @@ bool _vfsceSync(struct VFile* vf, void* buffer, size_t size) {
 		sceIoLseek(vfsce->fd, cur, SEEK_SET);
 		return res == size;
 	}
-	return sceIoSyncByFd(vfsce->fd) >= 0;
+	return sceIoSyncByFd(vfsce->fd, 0) >= 0;
 }
 
 struct VDir* VDirOpen(const char* path) {