Appveyor: add compiler setup script.

appveyor.yml

@@ -17,11 +17,21 @@ os:
     - Visual Studio 2010
     - Visual Studio 2015
 
-configuration: Release
+configuration:
+  - 2015
+  - 2013
+  - 2012
+  #- MinGW
+  - 2010 # only works for x86
 
-build:
+init:
+- if "%platform%" EQU "x64" ( for %%a in (2008 2010 MinGW) do ( if "%Configuration%"=="%%a" (echo "Skipping unsupported configuration" && exit /b 1 ) ) )
+
+install:
+# Make compiler command line tools available
+- call appveyor\compiler_setup.bat
 
 build_script:
  - cd c:\projects\assimp
- - cmake CMakeLists.txt -G "Visual Studio 11"
+ - cmake CMakeLists.txt -G "Visual Studio %Configuration%"
  - msbuild /m /p:Configuration=Release /p:Platform="Win32" Assimp.sln

scripts/appveyor/compiler_setup.bat

@@ -0,0 +1,40 @@
+@echo off
+
+:: Now we declare a scope
+Setlocal EnableDelayedExpansion EnableExtensions
+
+if not defined Configuration set Configuration=2015
+
+if "%Configuration%"=="MinGW" ( goto :mingw )
+
+set arch=x86
+
+if "%platform%" EQU "x64" ( set arch=x86_amd64 )
+
+if "%Configuration%"=="2015" (
+	set SET_VS_ENV="C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat"
+)
+
+if "%Configuration%"=="2013" (
+	set SET_VS_ENV="C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat"
+)
+
+if "%Configuration%"=="2012" (
+	set SET_VS_ENV="C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat"
+)
+
+if "%Configuration%"=="2010" (
+	set SET_VS_ENV="C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat"
+)
+
+if "%Configuration%"=="2008" (
+	set SET_VS_ENV="C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\vcvarsall.bat"
+)
+
+:: Visual Studio detected
+endlocal & call %SET_VS_ENV% %arch%
+goto :eof
+
+:: MinGW detected
+:mingw
+endlocal & set PATH=c:\mingw\bin;%PATH%