diff options
Diffstat (limited to 'libbuild2/cc/predefs-rule.cxx')
| -rw-r--r-- | libbuild2/cc/predefs-rule.cxx | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/libbuild2/cc/predefs-rule.cxx b/libbuild2/cc/predefs-rule.cxx index c8a8181..e74192d 100644 --- a/libbuild2/cc/predefs-rule.cxx +++ b/libbuild2/cc/predefs-rule.cxx @@ -25,10 +25,33 @@ namespace build2 bool predefs_rule:: match (action, target&, const string& hint, match_extra&) const { + tracer trace (x, "predefs_rule::match"); + // We only match with an explicit hint (failed that, we will turn every // header into predefs). // - return hint == rule_name; + if (hint == rule_name) + { + // Don't match if unsupported compiler. In particular, this allows the + // user to provide a fallback rule. + // + switch (cclass) + { + case compiler_class::gcc: return true; + case compiler_class::msvc: + { + // Only MSVC 19.20 or later. Not tested with clang-cl. + // + if (cvariant.empty () && (cmaj > 19 || (cmaj == 19 && cmin >= 20))) + return true; + + l4 ([&]{trace << "unsupported compiler/version";}); + break; + } + } + } + + return false; } recipe predefs_rule:: |