Fix cross-compilation

Use the cross-compiler and not the host version.

Patch sent upstream:
https://github.com/notspiff/visualization.goom/pull/4

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>

diff -uNr visualization.goom-fb5933ba5b2143d055cc7749dc60a82f6002b305.org/CMakeLists.txt visualization.goom-fb5933ba5b2143d055cc7749dc60a82f6002b305/CMakeLists.txt
--- visualization.goom-fb5933ba5b2143d055cc7749dc60a82f6002b305.org/CMakeLists.txt	2014-10-31 11:34:21.000000000 +0100
+++ visualization.goom-fb5933ba5b2143d055cc7749dc60a82f6002b305/CMakeLists.txt	2015-07-19 19:49:43.340054342 +0200
@@ -13,6 +13,10 @@
                     ${KODI_INCLUDE_DIR}
                     ${PROJECT_SOURCE_DIR}/lib/goom2k4-0/src)
 
+get_filename_component( COMPILER_FILENAME "${CMAKE_C_COMPILER}" NAME )
+string( REGEX REPLACE "-[^-]+$" ""
+        TOOLCHAIN_NAME "${COMPILER_FILENAME}" )
+
 include(ExternalProject)
 set(update_command "")
 if(BOOTSTRAP_IN_TREE OR NOT DEFINED BOOTSTRAP_IN_TREE)
@@ -20,7 +24,7 @@
 endif()
 externalproject_add(libgoom SOURCE_DIR ${PROJECT_SOURCE_DIR}/lib/goom2k4-0
                     "${update_command}"
-                    CONFIGURE_COMMAND ${PROJECT_SOURCE_DIR}/lib/goom2k4-0/configure --disable-shared --enable-static --with-pic --prefix=<INSTALL_DIR>
+                    CONFIGURE_COMMAND ${PROJECT_SOURCE_DIR}/lib/goom2k4-0/configure --disable-shared --enable-static --with-pic --prefix=<INSTALL_DIR> --host=${TOOLCHAIN_NAME}
                     BUILD_COMMAND ${MAKE}
                     INSTALL_COMMAND "")