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Diffstat (limited to 'src/libstore/build/local-derivation-goal.cc')
-rw-r--r--src/libstore/build/local-derivation-goal.cc15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/libstore/build/local-derivation-goal.cc b/src/libstore/build/local-derivation-goal.cc
index 18b682e13..5cea3b590 100644
--- a/src/libstore/build/local-derivation-goal.cc
+++ b/src/libstore/build/local-derivation-goal.cc
@@ -1594,6 +1594,8 @@ void LocalDerivationGoal::runChild()
/* Warning: in the child we should absolutely not make any SQLite
calls! */
+ bool sendException = true;
+
try { /* child */
commonChildInit(builderOut);
@@ -2050,6 +2052,8 @@ void LocalDerivationGoal::runChild()
/* Indicate that we managed to set up the build environment. */
writeFull(STDERR_FILENO, std::string("\2\n"));
+ sendException = false;
+
/* Execute the program. This should not return. */
if (drv->isBuiltin()) {
try {
@@ -2103,10 +2107,13 @@ void LocalDerivationGoal::runChild()
throw SysError("executing '%1%'", drv->builder);
} catch (Error & e) {
- writeFull(STDERR_FILENO, "\1\n");
- FdSink sink(STDERR_FILENO);
- sink << e;
- sink.flush();
+ if (sendException) {
+ writeFull(STDERR_FILENO, "\1\n");
+ FdSink sink(STDERR_FILENO);
+ sink << e;
+ sink.flush();
+ } else
+ std::cerr << e.msg();
_exit(1);
}
}