https://bugs.gentoo.org/841973

See also:
https://sourceforge.net/p/freeimage/mailman/message/37668470/
https://git.alpinelinux.org/aports/commit/?id=9b938a7b38ea4b8d9a73f1bf0d90ee45bbfa9139

diff --git a/Source/FreeImage/PluginPSD.cpp b/Source/FreeImage/PluginPSD.cpp
index e5b5ffa..d9de81f 100644
--- a/Source/FreeImage/PluginPSD.cpp
+++ b/Source/FreeImage/PluginPSD.cpp
@@ -127,7 +127,7 @@ Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
 static BOOL DLL_CALLCONV
 Save(FreeImageIO *io, FIBITMAP *dib, fi_handle handle, int page, int flags, void *data) {
 	if(!handle) {
-		return NULL;
+		return FALSE;
 	}
 	try {
 		psdParser parser;
-- 
2.35.1