Changed BEOS cases in CMakeLists.txt to HAIKU, this fixes the Allegro build

media-libs/allegro/patches/Haiku.patch

@@ -0,0 +1,50 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 245be10..6ab68c8 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -291,7 +291,7 @@ if(APPLE)
+     endif(COMPILER_GCC)
+ endif(APPLE)
+ 
+-if(BEOS)
++if(HAIKU)
+     if(CMAKE_SYSTEM_NAME STREQUAL Haiku)
+         set(ALLEGRO_HAIKU 1)
+     else(CMAKE_SYSTEM_NAME STREQUAL Haiku)
+@@ -300,9 +300,9 @@ if(BEOS)
+     set(WFLAGS "-W -Wall -Wno-unused -Wno-multichar")
+     set(WFLAGS_C_ONLY "")
+     set(WFLAGS_CXX_ONLY "-Wno-ctor-dtor-privacy")
+-endif(BEOS)
++endif(HAIKU)
+ 
+-if(UNIX AND NOT APPLE AND NOT BEOS)
++if(UNIX AND NOT APPLE AND NOT HAIKU)
+     set(ALLEGRO_UNIX 1)
+ endif()
+ 
+@@ -628,10 +628,10 @@ endif(WIN32)
+ 
+ # -- Haiku/BeOS --
+ 
+-if(BEOS)
++if(HAIKU)
+     list(APPEND PLATFORM_SOURCES ${ALLEGRO_SRC_BEOS_FILES})
+     list(APPEND PLATFORM_LIBS game midi device)
+-endif(BEOS)
++endif(HAIKU)
+ 
+ # -- Mac OS X --
+ 
+@@ -727,9 +727,9 @@ endif(WIN32)
+ if(ALLEGRO_WITH_XWINDOWS)
+     add_headers("" include/xalleg.h)
+ endif(ALLEGRO_WITH_XWINDOWS)
+-if(BEOS)
++if(HAIKU)
+     add_headers("" include/bealleg.h)
+-endif(BEOS)
++endif(HAIKU)
+ 
+ #-----------------------------------------------------------------------------#
+ #