zmusic/system-gme.patch

From: Jan Engelhardt <jengelh@inai.de>
Date: 2019-12-18 23:10:30.098185171 +0100

Use GME system libraries instead of bundled code.

---
 thirdparty/CMakeLists.txt |   23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

Index: thirdparty/CMakeLists.txt
===================================================================
--- thirdparty/CMakeLists.txt.orig
+++ thirdparty/CMakeLists.txt
@@ -20,21 +20,28 @@ endif()
 # system copy exists soley to placate people following distro guidelines to the
 # letter without regard as to why the vendored copy is forced.
 # [Blzut3] Commented out per request from Graf Zahl.
-#option(FORCE_INTERNAL_GME "Use internal gme (it is highly unlikely this should be turned off)" ON)
+# Conducive? What a load of unsourced claims.
+# One point of a system library - the important one for openSUSE - is to just have
+# *one* *single version* in the system that gets used. It does not matter
+# if it's a proper release, a Git snapshot, or if the next miniscule increment
+# is completely ABI incompatible. Just don't bloat by bundling everywhere.
+# 
+include(FindPkgConfig)
+pkg_check_modules(GME libgme)
+option(FORCE_INTERNAL_GME "Use internal gme" OFF)
 #mark_as_advanced(FORCE_INTERNAL_GME GME_INCLUDE_DIR GME_LIBRARY)
 #find_package(GME QUIET)
-#if(GME_FOUND AND NOT FORCE_INTERNAL_GME)
-#	message(STATUS "Using system gme library, includes found at ${GME_INCLUDE_DIRS}")
-#	set_property(TARGET gme PROPERTY IMPORTED_GLOBAL TRUE)
-#	determine_package_config_dependency(ZMUSIC_PACKAGE_DEPENDENCIES TARGET gme MODULE GME)
-#else()
-#	message(STATUS "Using internal gme library")
+if(NOT FORCE_INTERNAL_GME)
+	message(STATUS "Using system gme library, includes found at ${GME_INCLUDE_DIRS}")
+	determine_package_config_dependency(ZMUSIC_PACKAGE_DEPENDENCIES TARGET gme MODULE GME)
+else()
+	message(STATUS "Using internal gme library")
 	# Use MAME as it's a balanced emulator: well-accurate, but doesn't eats lot of CPU
 	# Nuked OPN2 is very accurate emulator, but it eats too much CPU for the workflow
 	set(GME_YM2612_EMU "MAME" CACHE STRING "Which YM2612 emulator to use: \"Nuked\" (LGPLv2.1+), \"MAME\" (GPLv2+), or \"GENS\" (LGPLv2.1+)")
 	mark_as_advanced(GME_YM2612_EMU)
 	add_subdirectory(game-music-emu)
-#endif()
+endif()
 
 add_subdirectory(dumb)
 add_subdirectory(adlmidi)