Use config_host.mk.source when configuring 'build' for cross-compilation.

Change-Id: I2e6e2a98bbaf515ececa75948d6b20bf9a093fe5

config_host.mk.source

@@ -5,6 +5,7 @@
 #       source ./config_host.mk.source
 
 temp_conf=`mktemp config_host.mk.XXXXXX`
-sed -e 's/^\s*\(export [A-Z0-9_]*=\)\(.*\)$/\1"\2"/' config_host.mk >$temp_conf
+sed -e 's/^\s*\(export [A-Z0-9_]*=\)\(.*\)$/\1"\2"/' \
+    -e 's/^\s*export\s\+\([A-Z0-9_]*\)?=\(.*\)$/export \1="${\1:-\2}"/' config_host.mk >$temp_conf
 source ./$temp_conf
 rm $temp_conf

configure.in

@@ -3527,6 +3527,7 @@ if test "$cross_compiling" = "yes"; then
         bin/repo-list.in \
         config.guess \
         config_host.mk.in \
+        config_host.mk.source \
         configure \
         ooo.lst.in \
         oowintool \
@@ -3571,8 +3572,7 @@ if test "$cross_compiling" = "yes"; then
     test -f ./config_host.mk 2>/dev/null || exit
     cp config_host.mk ../config_build.mk
     cp config.log ../config.Build.log
-    sed -e 's,=\(.*\),="\1",' < config_host.mk > config_host.sh
-    . ./config_host.sh
+    . ./config_host.mk.source
     for V in COM GUI GUIBASE OS CPU CPUNAME CC CXX DISABLE_PYTHON GXX_INCLUDE_PATH MACOSX_DEPLOYMENT_TARGET INPATH OUTPATH \
              PYTHON SYSTEM_LIBXSLT; do
         VV='$'$V