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authorBoris Kolpackov <boris@codesynthesis.com>2015-06-18 11:41:46 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2015-06-18 11:41:46 +0200
commit6434d616da5d75577d142e20e0f9fa430bd625df (patch)
treee9ad77473aa651d44a6fd31a7b7d23eabfac5a0e /build/cxx/rule.cxx
parent89ea9c8401d9e1b79977c6556b81b2eb4159ef59 (diff)
Use optional from libbutl
Diffstat (limited to 'build/cxx/rule.cxx')
-rw-r--r--build/cxx/rule.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/build/cxx/rule.cxx b/build/cxx/rule.cxx
index f05370d..095c98a 100644
--- a/build/cxx/rule.cxx
+++ b/build/cxx/rule.cxx
@@ -12,6 +12,7 @@
#include <butl/process>
#include <butl/fdstream>
+#include <butl/optional>
#include <build/scope>
#include <build/variable>