cpp module: Add property for linking-only driver flags

For instance, GCC has various flags that are only used for linking, but
that are not ld flags and thus must not be escaped via "-Wl,".

[ChangeLog] Added cpp.driverLinkerFlags for flags to be passed to the
compiler driver only when linking.

Task-number: QBS-1236
Change-Id: Idc1498a74e0219306fda99de9adad2730f3a6f73
Reviewed-by: Jake Petroules <jake.petroules@qt.io>

2 files changed, 20 insertions, 0 deletions

diff --git a/tests/auto/blackbox/testdata/driver-linker-flags/driver-linker-flags.qbs b/tests/auto/blackbox/testdata/driver-linker-flags/driver-linker-flags.qbs
new file mode 100644
index 000000000..0802bc562
--- /dev/null
+++ b/tests/auto/blackbox/testdata/driver-linker-flags/driver-linker-flags.qbs
@@ -0,0 +1,19 @@
+import qbs
+
+CppApplication {
+    files: "main.cpp"
+
+    Properties {
+        condition: toolchainProbe.found
+        cpp.driverLinkerFlags: ["-nostartfiles"]
+    }
+
+    Probe {
+        id: toolchainProbe
+        condition: qbs.toolchain.contains("gcc")
+        configure: {
+            console.info("toolchain is GCC-like");
+            found = true;
+        }
+    }
+}
diff --git a/tests/auto/blackbox/testdata/driver-linker-flags/main.cpp b/tests/auto/blackbox/testdata/driver-linker-flags/main.cpp
new file mode 100644
index 000000000..237c8ce18
--- /dev/null
+++ b/tests/auto/blackbox/testdata/driver-linker-flags/main.cpp
@@ -0,0 +1 @@
+int main() {}