rrdtool: only unset PERLHOSTLIB in do_configure

The do_compile requires it, otherwise it can't find the native module
correctly when perl-native is mirrored from another build.

Fixed:
| Compilation failed in require.
| BEGIN failed--compilation aborted.
| Can't locate loadable object for module File::Glob in @INC

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
(cherry picked from commit daf619ec4cffab45f0137d02a770071643d10432)
Signed-off-by: Armin Kuster <akuster808@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta-oe/recipes-extended/rrdtool/rrdtool_1.5.4.bb b/meta-oe/recipes-extended/rrdtool/rrdtool_1.5.4.bb
index 216aafcee7..73a5d0e5b2 100644
--- a/meta-oe/recipes-extended/rrdtool/rrdtool_1.5.4.bb
+++ b/meta-oe/recipes-extended/rrdtool/rrdtool_1.5.4.bb
@@ -58,9 +58,9 @@ export STAGING_INCDIR
 # emulate cpan_do_configure
 EXTRA_OEMAKE = ' PERL5LIB="${PERL_ARCHLIB}" '
 # Avoid do_configure error on some hosts
-export PERLHOSTLIB = ""
 
 do_configure() {
+    unset PERLHOSTLIB
     #fix the pkglib problem with newer automake
     #perl
     sed -i -e "s|-Wl,--rpath -Wl,\$rp||g" \