From bd5484299779080bd24e97b0a1f50603447a623a Mon Sep 17 00:00:00 2001
From: Friedrich von Never <friedrich@fornever.me>
Date: Mon, 24 Jun 2019 22:27:45 +0700
Subject: [PATCH] Send stderr from cmake into stdout

This will no more break build when warnings are received from cmake.
---
 .appveyor/build.ps1 | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/.appveyor/build.ps1 b/.appveyor/build.ps1
index 8dcc6729b..bb32eae8c 100644
--- a/.appveyor/build.ps1
+++ b/.appveyor/build.ps1
@@ -1,11 +1,21 @@
 $ErrorActionPreference = 'Stop'
 
 Push-Location "$env:APPVEYOR_BUILD_FOLDER\build"
+
+function execute-cmake {
+    # We have to merge the stderr and stdout here because otherwise the build will fail on any random warning
+    cmd /c 'cmake 2>&1' @args
+    if ($LASTEXITCODE -ne 0) {
+        throw "CMake execution error: $LASTEXITCODE"
+    }
+}
+
 try {
-    cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=c:/tools/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
-    if (!$?) { throw 'Error running cmake' }
-    cmake --build . --config RelWithDebInfo
-    if (!$?) { throw 'Error building with cmake' }
+    execute-cmake '-GNinja' `
+        '-DCMAKE_TOOLCHAIN_FILE=c:/tools/vcpkg/scripts/buildsystems/vcpkg.cmake' `
+        '-DCMAKE_BUILD_TYPE=RelWithDebInfo' `
+        ..
+    execute-cmake --build . --config RelWithDebInfo
     ctest .
     if (!$?) { throw 'ctest execution error' }
 } finally {