diff options
Diffstat (limited to 'libbuild2/script')
| -rw-r--r-- | libbuild2/script/run.cxx | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/libbuild2/script/run.cxx b/libbuild2/script/run.cxx index 182696b..90ddc4d 100644 --- a/libbuild2/script/run.cxx +++ b/libbuild2/script/run.cxx @@ -1552,8 +1552,20 @@ namespace build2 // Merge standard streams. // bool mo (out != nullptr && out->type == redirect_type::merge); - if (mo || err.type == redirect_type::merge) + bool me (err.type == redirect_type::merge); + + if (mo || me) { + // Note that while the parser verifies that there is no stdout/stderr + // mutual redirects specified on the command line, we can still end up + // with mutual redirects here since one of such redirects can be + // provided as a default by the script environment implementation + // which the parser is not aware of at the time of parsing the command + // line. + // + if (mo && me) + fail (ll) << "stdout and stderr redirected to each other"; + auto_fd& self (mo ? ofd.out : efd); auto_fd& other (mo ? efd : ofd.out); |