build system: Yet another way to solve the src-dir vs. build-dir issue.

[collectd.git] / bindings / Makefile.am

diff --git a/bindings/Makefile.am b/bindings/Makefile.am
index 37e31ea..16872e8 100644 (file)
--- a/bindings/Makefile.am
+++ b/bindings/Makefile.am
@@ -11,8 +11,16 @@ clean-local:
 perl: perl/Makefile
        $(MAKE) -C perl
 
-perl/Makefile: perl/Makefile.PL perl/Collectd/Makefile.PL
+perl/Makefile: .perl-directory-stamp perl/Makefile.PL perl/Collectd/Makefile.PL
        cd perl && @PERL@ Makefile.PL PREFIX=$(prefix) @PERL_BINDINGS_OPTIONS@
 
+.perl-directory-stamp:
+       if test ! -d perl; then \
+         mkdir -p perl/Collectd; \
+         cp $(srcdir)/perl/{Collectd.pm,Makefile.PL} perl/; \
+         cp $(srcdir)/perl/Collectd/{Unixsock.pm,Makefile.PL} perl/Collectd/; \
+       fi
+       touch $@
+
 .PHONY: perl