X-Git-Url: https://git.octo.it/?a=blobdiff_plain;ds=sidebyside;f=configure.ac;h=d6ad88abfa3e75ed1f7c38ece7d14364ad1efa6e;hb=99b9b7fd0cad0edea57c08fdf939d368c4c0ec45;hp=5cfd7d284ba16eb7c8821955046dbfa94567a57f;hpb=54b2941bf83b09739e89da6c5dad5482cbe05ab8;p=rrdtool.git

diff --git a/configure.ac b/configure.ac
index 5cfd7d2..d6ad88a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -309,7 +309,10 @@ AC_MSG_CHECKING(Perl Modules to build)
 AC_MSG_RESULT(${COMP_PERL:-No Perl Modules will be built})
 
 # Options to pass when configuring perl module
-PERL_MAKE_OPTIONS="PREFIX=$prefix LIB=$prefix/lib/perl/$PERL_VERSION"
+ppref=$prefix
+test "x$ppref" = xNONE && ppref=$ac_default_prefix
+
+PERL_MAKE_OPTIONS="PREFIX=$ppref LIB=$ppref/lib/perl/$PERL_VERSION"
 
 dnl pass additional perl options when generating Makefile from Makefile.PL
 AC_ARG_ENABLE(perl-site-install,