only run /sbin/ldconfig if it exists and is exxecutable

diff --git a/cmd/dot/Makefile.am b/cmd/dot/Makefile.am
index d58baf70b7434f5d956e3a1d60cf8577a3962479..c73c6bfa8caf6eb31245e7e8468daaada0c3733b 100644 (file)
--- a/cmd/dot/Makefile.am
+++ b/cmd/dot/Makefile.am
@@ -37,7 +37,7 @@ install-data-hook:
 # run "dot -c", if possible, to create plugin config
 install-exec-hook:
        (cd $(DESTDIR)$(bindir); for i in $(linkedprogram); do rm -f $$i; $(LN_S) dot $$i; done;)
-       if test "x$(DESTDIR)" = "x"; then if test -x $(bindir)/dot; then /sbin/ldconfig; $(bindir)/dot -c; else $(bindir)/dot_static -c; fi; fi
+       if test "x$(DESTDIR)" = "x"; then if test -x $(bindir)/dot; then if test -x /sbin/ldconfig; then /sbin/ldconfig; fi; $(bindir)/dot -c; else $(bindir)/dot_static -c; fi; fi
 
 uninstall-hook:
        (cd $(DESTDIR)$(man1dir); for i in $(linkedman); do rm -f $$i; done;)