diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2018-06-28 09:44:15 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2018-06-28 09:44:15 +0200 |
commit | 3cc5e3bd441fc9d18fece3d9e99fae75c78438e7 (patch) | |
tree | a9a08c453370847e0d352d47e19fbfcb7cc757ef /build2/prerequisite.cxx | |
parent | c0f72d47fc25981dcc1f55e12dfa0fdba7b70242 (diff) |
Implement support for excluded and ad hoc prerequisites
The inclusion/exclusion is controlled via the 'include' prerequisite-specific
variable. Valid values are:
false - exclude
true - include
adhoc - include but treat as an ad hoc input
For example:
lib{foo}: cxx{win32-utility}: include = ($cxx.targe.class == 'windows')
exe{bar}: libs{plugin}: include = adhoc
Diffstat (limited to 'build2/prerequisite.cxx')
-rw-r--r-- | build2/prerequisite.cxx | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/build2/prerequisite.cxx b/build2/prerequisite.cxx index 8edcc74..5900589 100644 --- a/build2/prerequisite.cxx +++ b/build2/prerequisite.cxx @@ -94,4 +94,29 @@ namespace build2 return r; } + + // include() + // + include_type + include_impl (action a, + const target& t, + const string& v, + const prerequisite& p, + const target* m) + { + include_type r (false); + + if (v == "false") r = include_type::excluded; + else if (v == "adhoc") r = include_type::adhoc; + else if (v == "true") r = include_type::normal; + else + fail << "invalid " << var_include->name << " variable value " + << "'" << v << "' specified for prerequisite " << p; + + // Call the meta-operation override, if any (currently used by dist). + // + return current_mif->include == nullptr + ? r + : current_mif->include (a, t, prerequisite_member {p, m}, r); + } } |