diff options
Diffstat (limited to 'libbuild2/bin/rule.hxx')
| -rw-r--r-- | libbuild2/bin/rule.hxx | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/libbuild2/bin/rule.hxx b/libbuild2/bin/rule.hxx index ffb975d..9dd1d14 100644 --- a/libbuild2/bin/rule.hxx +++ b/libbuild2/bin/rule.hxx @@ -9,6 +9,8 @@ #include <libbuild2/rule.hxx> +#include <libbuild2/dist/rule.hxx> + #include <libbuild2/bin/export.hxx> namespace build2 @@ -18,28 +20,41 @@ namespace build2 // "Fail rule" for obj{} and [h]bmi{} that issues diagnostics if someone // tries to build these groups directly. // - class obj_rule: public simple_rule + // Note that for dist it acts as a pass-through to all existing (declared) + // members. + // + class obj_rule: public dist::rule { public: obj_rule () {} virtual bool - match (action, target&, const string&) const override; + match (action, target&) const override; virtual recipe apply (action, target&) const override; }; - // "Fail rule" for libul{} that issues diagnostics if someone tries to - // build this group directly. + // This rule picks, matches, and unmatches (if possible) a member for the + // purpose of making its metadata (for example, library's poptions, if + // it's one of the cc libraries) available. + // + // The underlying idea here is that someone else (e.g., cc::link_rule) + // makes a more informed choice and we piggy back on that decision, + // falling back to making our own based on bin.lib and bin.exe.lib. Note + // that for update this rule always returns target_state::unchanged. // - class libul_rule: public simple_rule + // Note also that for dist it acts as a pass-through to all existing + // (declared) members. + // + class libul_rule: public dist::rule { public: + explicit libul_rule () {} virtual bool - match (action, target&, const string&) const override; + match (action, target&) const override; virtual recipe apply (action, target&) const override; @@ -47,13 +62,15 @@ namespace build2 // Pass-through to group members rule, similar to alias. // + // Note that for dist it always passes to both members. + // class LIBBUILD2_BIN_SYMEXPORT lib_rule: public simple_rule { public: lib_rule () {} virtual bool - match (action, target&, const string&) const override; + match (action, target&) const override; virtual recipe apply (action, target&) const override; |