config: Set the LD/DYLD temporary path for configure and make.

Both phases of the build need to find the libraries in their temporary
path.

source-builder/config/glib-2-1.cfg

@@ -71,6 +71,7 @@ Source0: http://ftp.gnome.org/pub/gnome/sources/glib/%{glib_version_major}/glib-
     --with-sysroot=$SYSROOT \
     --disable-dtrace
 
+  %{_ld_library_path}=$SYSROOT/lib \
   %{__make} %{?_smp_mflags} all
 
   cd ${build_top}

source-builder/config/qemu-1-1.cfg

@@ -66,6 +66,7 @@ Source0: http://wiki.qemu-project.org/download/qemu-%{qemu_version}.tar.bz2
     --disable-vnc \
     --disable-netmap
 
+  %{_ld_library_path}=$SYSROOT/lib \
   %{__make} %{?_smp_mflags} all
 
   cd ${build_top}