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Print a trace message if a build fails due to the platform being unknown

This commit is contained in:
Eelco Dolstra 2013-12-05 14:31:57 -05:00
parent 709cbe4e76
commit c5b8fe3151
1 changed files with 4 additions and 1 deletions
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5
src/libstore/build.cc
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@ -1623,10 +1623,13 @@ void DerivationGoal::startBuilder()
startNest(nest, lvlInfo, format(repair ? "repairing path(s) %1%" : "building path(s) %1%") % showPaths(missingPaths));
/* Right platform? */
if (!canBuildLocally(drv.platform))
if (!canBuildLocally(drv.platform)) {
if (settings.printBuildTrace)
printMsg(lvlError, format("@ unsupported-platform %1% %2%") % drvPath % drv.platform);
throw Error(
format("a `%1%' is required to build `%3%', but I am a `%2%'")
% drv.platform % settings.thisSystem % drvPath);
}
/* Construct the environment passed to the builder. */