2 files changed, 9 insertions, 0 deletions
diff --git a/share/qbs/modules/cpp/iar.js b/share/qbs/modules/cpp/iar.js
index 53088c7d8..3549979be 100644
--- a/share/qbs/modules/cpp/iar.js
+++ b/share/qbs/modules/cpp/iar.js
@@ -542,6 +542,10 @@ function compilerFlags(project, product, input, outputs, explicitlyDependsOn) {
     // Output.
     args.push("-o", outputs.obj[0].filePath);
 
+    var prefixHeaders = input.cpp.prefixHeaders;
+    for (var i in prefixHeaders)
+        args.push("--preinclude", prefixHeaders[i]);
+
     // Defines.
     var allDefines = [];
     var platformDefines = input.cpp.platformDefines;
diff --git a/share/qbs/modules/cpp/keil.js b/share/qbs/modules/cpp/keil.js
index b6842c321..3e98a6312 100644
--- a/share/qbs/modules/cpp/keil.js
+++ b/share/qbs/modules/cpp/keil.js
@@ -751,6 +751,11 @@ function compilerFlags(project, product, input, outputs, explicitlyDependsOn) {
         args.push("-c", input.filePath);
         // Output.
         args.push("-o", outputs.obj[0].filePath);
+
+        var prefixHeaders = input.cpp.prefixHeaders;
+        for (var i in prefixHeaders)
+            args.push("--preinclude", prefixHeaders[i]);
+
         // Defines.
         args = args.concat(allDefines.map(function(define) { return '-D' + define }));
         // Includes.