alien.libraries.finder.linux: make ldconfig safe from runtime errors.

this helps on platforms like NixOS.

diff --git a/basis/alien/libraries/finder/linux/linux.factor b/basis/alien/libraries/finder/linux/linux.factor
index 7af0f71c8a250a54236fb839addc5d47a12f1196..5dc314be9279289b49c44ba9c1f95842ce33e856 100644 (file)
--- a/basis/alien/libraries/finder/linux/linux.factor
+++ b/basis/alien/libraries/finder/linux/linux.factor
@@ -25,8 +25,8 @@ CONSTANT: mach-map {
     ] map ;
 
 : load-ldconfig-cache ( -- seq )
-    "/sbin/ldconfig -p" utf8 [ lines ] with-process-reader
-    rest parse-ldconfig-lines ;
+    "/sbin/ldconfig -p" utf8 [ lines ] with-process-reader*
+    2drop [ f ] [ rest parse-ldconfig-lines ] if-empty ;
 
 : ldconfig-arch ( -- str )
     mach-map cpu of { "libc6" } or ;