diff options
Diffstat (limited to 'build/cxx/rule.cxx')
| -rw-r--r-- | build/cxx/rule.cxx | 1 |
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> |