fix build with SDL2_sound 2.0.1

ags-sdl2_sound.patch

@@ -0,0 +1,14 @@
+diff -up ags-3.6.0.56/Engine/Makefile-defs.linux.sdl2_sound ags-3.6.0.56/Engine/Makefile-defs.linux
+--- ags-3.6.0.56/Engine/Makefile-defs.linux.sdl2_sound	2024-01-19 17:37:12.929782340 +0100
++++ ags-3.6.0.56/Engine/Makefile-defs.linux	2024-01-19 17:47:24.587125274 +0100
+@@ -30,8 +30,8 @@ else
+ endif
+ LIBS += $(shell pkg-config --libs vorbisfile)
+ 
+-SDL2_SOUND_CFLAGS = $(shell pkg-config --cflags SDL2_sound)
+-SDL2_SOUND_LIBS = $(shell pkg-config --libs SDL2_sound)
++SDL2_SOUND_CFLAGS = $(shell pkg-config --cflags SDL2_sound || echo)
++SDL2_SOUND_LIBS = $(shell pkg-config --libs SDL2_sound || echo "-lSDL2_sound")
+ 
+ SDL2_CFLAGS = $(shell sdl2-config --cflags)
+ SDL2_LIBS = $(shell sdl2-config --libs)

ags.spec

@@ -15,6 +15,8 @@ Version: 3.6.0.56
 URL:     http://www.adventuregamestudio.co.uk/site/ags/
 Release: 1%{?dist}
 Source0: https://github.com/adventuregamestudio/ags/archive/%{fver}/ags-%{fver}.tar.gz
+# use SDL2_sound without pkg-config
+Patch0:  %{name}-sdl2_sound.patch
 # unbundle freetype
 Patch2:  %{name}-use-system-freetype.patch
 # use openal-soft
@@ -67,6 +69,7 @@ since continued to be developed by contributors.
 
 %prep
 %setup -q
+%patch0 -p1 -b .sdl2_sound
 %if %{with freetype}
 %patch2 -p1 -b .noft
 %endif
@@ -117,6 +120,7 @@ make V=1 -C Engine PREFIX=%{buildroot}%{_prefix} install
 %changelog
 * Fri Jan 19 2024 Dominik Mierzejewski <dominik@greysector.net> - 3.6.0.56-1
 - update to 3.6.0.56
+- fix build with SDL2_sound 2.0.1
 
 * Fri Sep 01 2023 Dominik Mierzejewski <dominik@greysector.net> - 3.6.0.51-1
 - update to 3.6.0.51