diff --git a/dev-perl/alien_svn/alien_svn-1.8.11.0.recipe b/dev-perl/alien_svn/alien_svn-1.8.11.0.recipe
index a1a1fba25..90852926b 100644
--- a/dev-perl/alien_svn/alien_svn-1.8.11.0.recipe
+++ b/dev-perl/alien_svn/alien_svn-1.8.11.0.recipe
@@ -11,7 +11,7 @@ CHECKSUM_SHA256="acf8ebce1cb6958ef24611a453abee32b8e4dfe767563834362891ef3f30fc6
 SOURCE_DIR="Alien-SVN-v$portVersion"
 PATCHES="alien_svn-$portVersion.patchset"
 
-ARCHITECTURES="x86_gcc2"
+ARCHITECTURES="x86_gcc2 x86_64"
 
 PROVIDES="
 	alien_svn = $portVersion
@@ -39,6 +39,7 @@ BUILD_PREREQUIRES="
 BUILD()
 {
 	export CFLAGS=-O0
+	export CPPFLAGS=-P
 	export PERL_MM_USE_DEFAULT=1 # Don't ask questions and use the default values
 	perl Build.PL --installdirs vendor --prefix $prefix
 	./Build