alsa-lib: remove cross-compile guess (restore old patch)

Signed-off-by: Ted Hess <thess@kitschensync.net>

libs/alsa-lib/patches/002-remove_cross_compile_guess.patch

@@ -0,0 +1,23 @@
+--- a/configure.ac
++++ b/configure.ac
+@@ -27,20 +27,6 @@ AC_PREFIX_DEFAULT(/usr)
+ 
+ dnl Checks for programs.
+ 
+-dnl try to gues cross-compiler if not set
+-if test "x$host" != "x$build" -a -z "`echo $CC | grep -e '-gcc'`";
+-then
+-  AC_MSG_CHECKING(for cross-compiler)
+-
+-  which ${program_prefix}gcc >/dev/null 2>&1 && CC=${program_prefix}gcc
+-  which ${host_cpu}-${host_os}-gcc >/dev/null 2>&1 \
+-  && CC=${host_cpu}-${host_os}-gcc
+-  which ${host_cpu}-${host_vendor}-${host_os}-gcc >/dev/null 2>&1 \
+-  && CC=${host_cpu}-${host_vendor}-${host_os}-gcc
+-
+-  AC_MSG_RESULT($CC)
+-fi
+-	    
+ CFLAGS="$CFLAGS -D_GNU_SOURCE"
+ 
+