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authorBoris Kolpackov <boris@codesynthesis.com>2019-11-12 14:51:02 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2019-11-12 14:51:02 +0200
commit8ac1daf33da807635eddd881f2b178af8e22863a (patch)
tree3a3e91538f4665b0d721bc91d935eb01a5a3b61d /libbuild2/config/utility.hxx
parent8725010c51811c7ff91013e2caca3c45ea96b371 (diff)
Infra work for customizable config var persistence (config.config.persist)
Diffstat (limited to 'libbuild2/config/utility.hxx')
-rw-r--r--libbuild2/config/utility.hxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/libbuild2/config/utility.hxx b/libbuild2/config/utility.hxx
index 2a0909f..7774b68 100644
--- a/libbuild2/config/utility.hxx
+++ b/libbuild2/config/utility.hxx
@@ -143,6 +143,7 @@ namespace build2
// config::module for details.
//
const uint64_t save_commented = 0x01; // Save default value as commented.
+ const uint64_t omit_null = 0x02; // Treat NULL as undefined.
LIBBUILD2_SYMEXPORT void
save_variable (scope& root, const variable&, uint64_t flags = 0);