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-rw-r--r--libbuild2/adhoc-rule-cxx.cxx42
1 files changed, 41 insertions, 1 deletions
diff --git a/libbuild2/adhoc-rule-cxx.cxx b/libbuild2/adhoc-rule-cxx.cxx
index 2ac97eb..8a91809 100644
--- a/libbuild2/adhoc-rule-cxx.cxx
+++ b/libbuild2/adhoc-rule-cxx.cxx
@@ -358,6 +358,46 @@ namespace build2
// This way the configuration will be always in sync with ~build2
// and we can update the recipe manually (e.g., for debugging).
//
+ // Should we use ~build2 or ~build2-no-warnings? This case is similar
+ // to private host/module configurations in that the user doesn't have
+ // any control over the options used, etc. So it would be natural to
+ // use the no-warnings variant. However, unlike with tools/modules
+ // which can be configured in a user-created configuration (and which
+ // will normally be the case during development), for recipes it's
+ // always this automatically-create configuration. It feels like the
+ // best we can do is use ~build2-no-warnings by default but switch to
+ // ~build2 if the project is configured for development
+ // (config.<project>.develop).
+ //
+ string cfg;
+ {
+ const project_name& pn (named_project (rs));
+
+ if (!pn.empty ())
+ {
+ string var ("config." + pn.variable () + ".develop");
+
+ if (lookup l = rs[var])
+ {
+ // The value could be untyped if the project didn't declare this
+ // variable. Let's handle that case gracefully.
+ //
+ try
+ {
+ if (convert<bool> (*l))
+ cfg = "~build2";
+ }
+ catch (const invalid_argument& e)
+ {
+ fail << "invalid " << var << " value: " << e;
+ }
+ }
+ }
+
+ if (cfg.empty ())
+ cfg = "~build2-no-warnings";
+ }
+
create_project (
pd,
dir_path (), /* amalgamation */
@@ -366,7 +406,7 @@ namespace build2
{"cxx."}, /* root_modules */
"", /* root_post */
string ("config"), /* config_module */
- string ("config.config.load = ~build2"), /* config_file */
+ "config.config.load = " + cfg, /* config_file */
false, /* buildfile */
"build2 core", /* who */
verbosity); /* verbosity */