diff options
| -rw-r--r-- | build2/version/rule.cxx | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/build2/version/rule.cxx b/build2/version/rule.cxx index 6909b92..6632d55 100644 --- a/build2/version/rule.cxx +++ b/build2/version/rule.cxx @@ -453,9 +453,16 @@ namespace build2 string r; - r += "#if !(" + cond () + ")\n"; - r += "# error incompatible " + n + " version, "; - r += n + ' ' + c.string () + " is required\n"; + // This is tricky: if the version header hasn't been generated yet, + // then the check will fail. Maybe a better solution is to disable + // diagnostics and ignore (some) errors during dependency + // extraction. + // + r += "#ifdef " + vm + "\n"; + r += "# if !(" + cond () + ")\n"; + r += "# error incompatible " + n + " version, "; + r += n + ' ' + c.string () + " is required\n"; + r += "# endif\n"; r += "#endif"; return r; |