Qt provider: Check exit code of qmake -query call

We relied on an exception getting thrown for failed process, but a non-
zero exit code is not technically an error, so we have to check for it
explicitly.

Change-Id: Ibf13ee3022f7ca3753d63be8251c047077dbe240
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/share/qbs/module-providers/Qt/setup-qt.js b/share/qbs/module-providers/Qt/setup-qt.js
index aeea2995b..867110570 100644
--- a/share/qbs/module-providers/Qt/setup-qt.js
+++ b/share/qbs/module-providers/Qt/setup-qt.js
@@ -71,6 +71,10 @@ function getQmakeFilePaths(qmakeFilePaths, qbs) {
 function queryQmake(qmakeFilePath) {
     var qmakeProcess = new Process;
     qmakeProcess.exec(qmakeFilePath, ["-query"]);
+    if (qmakeProcess.exitCode() !== 0) {
+        throw "The qmake executable '" + toNative(qmakeFilePath) + "' failed with exit code "
+                + qmakeProcess.exitCode() + ".";
+    }
     var queryResult = {};
     while (!qmakeProcess.atEnd()) {
         var line = qmakeProcess.readLine();