From 0d06da7803c082b43cdccfcdfd56911ba4e7d458 Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Sat, 22 Feb 2020 22:18:48 +0100
Subject: [PATCH] Add pch test suite probe for seemingly broken compiler
 support

This fixes a problem mentioned by Orion Poplawski in a comment to PR #217.
---
 test/suites/pch.bash | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/test/suites/pch.bash b/test/suites/pch.bash
index caf82c459..f779a36f6 100644
--- a/test/suites/pch.bash
+++ b/test/suites/pch.bash
@@ -1,8 +1,15 @@
 SUITE_pch_PROBE() {
-    touch pch.h
+    touch pch.h empty.c
+    mkdir dir
+
     if ! $REAL_COMPILER $SYSROOT -fpch-preprocess pch.h 2>/dev/null \
             || [ ! -f pch.h.gch ]; then
-        echo "compiler ($($COMPILER --version | head -1)) doesn't support precompiled headers"
+        echo "compiler ($($COMPILER --version | head -n 1)) doesn't support precompiled headers"
+    fi
+
+    $REAL_COMPILER $SYSROOT -c pch.h -o dir/pch.h.gch 2>/dev/null
+    if ! $REAL_COMPILER $SYSROOT -c -include dir/pch.h empty.c 2>/dev/null; then
+        echo "compiler ($($COMPILER --version | head -n 1)) seems to have broken support for precompiled headers"
     fi
 }
 
-- 
2.47.2