src/CMakeLists.txt: Need to set RP_LIBROMDATA_IS_DLL in the current *…

…and* parent scope.

Otherwise, it shows up properly in the build summary, but libromdata
always ends up being built as a static library.

debian/changelog

@@ -1,3 +1,12 @@
+rom-properties (2.0-1ppa1~xenial6) xenial; urgency=medium
+
+  * Need to set RP_LIBROMDATA_IS_DLL in the current *and* parent scope.
+
+    Otherwise, it shows up properly in the build summary, but libromdata
+    always ends up being built as a static library.
+
+ -- David Korth <[email protected]>  Sat, 24 Sep 2022 20:02:02 -0400
+
 rom-properties (2.0-1ppa1~xenial5) xenial; urgency=medium
 
   * Re-add #include "dll-macros.h" to KeyStoreUI.hpp and RomFields.hpp.

src/CMakeLists.txt

@@ -98,6 +98,7 @@ IF(CMAKE_C_COMPILER MATCHES afl)
 	# afl-fuzz crashes when trying to load libromdata.so for some reason.
 	MESSAGE(WARNING "Disabling libromdata.so due to afl")
 ELSEIF(WIN32 OR (UNIX AND NOT APPLE))
+	SET(RP_LIBROMDATA_IS_DLL 1)
 	SET(RP_LIBROMDATA_IS_DLL 1 PARENT_SCOPE)
 	ADD_DEFINITIONS(-DRP_LIBROMDATA_IS_DLL=1)
 ELSE()