mingw: Use a lower response file threshold

Both compiler and linker of this toolchain can considerably lengthen the
command line when forwarding it to internal helper tools. Adapt the
response file threshold accordingly.

Change-Id: Iac071163375f276203a83d9ec503f4a3345f6b40
Reviewed-by: Jake Petroules <jake.petroules@qt.io>

1 files changed, 8 insertions, 0 deletions

diff --git a/share/qbs/modules/cpp/gcc.js b/share/qbs/modules/cpp/gcc.js
index ab0f5f123..e5614127d 100644
--- a/share/qbs/modules/cpp/gcc.js
+++ b/share/qbs/modules/cpp/gcc.js
@@ -1011,6 +1011,12 @@ function linkerEnvVars(config, inputs)
     return list;
 }
 
+function setResponseFileThreshold(command, product)
+{
+    if (product.qbs.toolchain.contains("mingw") && product.qbs.hostOS.contains("windows"))
+        command.responseFileThreshold = 10000;
+}
+
 function prepareCompiler(project, product, inputs, outputs, input, output, explicitlyDependsOn) {
     var compilerInfo = effectiveCompilerInfo(product.qbs.toolchain,
                                              input, output);
@@ -1036,6 +1042,7 @@ function prepareCompiler(project, product, inputs, outputs, input, output, expli
     cmd.relevantEnvironmentVariables = compilerEnvVars(input, compilerInfo);
     cmd.responseFileArgumentIndex = wrapperArgsLength;
     cmd.responseFileUsagePrefix = '@';
+    setResponseFileThreshold(cmd, product);
     return cmd;
 }
 
@@ -1254,6 +1261,7 @@ function prepareLinker(project, product, inputs, outputs, input, output) {
     cmd.relevantEnvironmentVariables = linkerEnvVars(product, inputs);
     cmd.responseFileArgumentIndex = responseFileArgumentIndex;
     cmd.responseFileUsagePrefix = useQnxResponseFileHack ? "-Wl,@" : "@";
+    setResponseFileThreshold(cmd, product);
     commands.push(cmd);
 
     var debugInfo = outputs.debuginfo_app || outputs.debuginfo_dll