gmp: add missing builddeps for chroot rebuild.

srcpkgs/gmp/template

@@ -30,10 +30,15 @@ long_desc="
 
 bootstrap=yes
 subpackages="gmp-devel"
-Add_dependency build m4
 Add_dependency run libgcc
 Add_dependency run glibc
 Add_dependency run libstdc++
+Add_dependency build m4
+
+if [ -n "$BOOTSTRAP_PKG_REBUILD" ]; then
+	Add_dependency build gettext
+	Add_dependency build texinfo
+fi
 
 post_install()
 {