Add missing 08-libclang.ps1 for windows7 provisioning

We need to set LLVM_INSTALL_DIR to be able to build qdoc. That was
missing from windows7.

Task-number: QTBUG-65950
Change-Id: I7f75eb0181056a2117080ead6dc5862324906689
Reviewed-by: Simo Fält <simo.falt@qt.io>

coin/provisioning/common/windows/libclang.ps1

@@ -1,4 +1,7 @@
-param([Int32]$archVer=32)
+param(
+    [Int32]$archVer=32,
+    [string]$toolchain="vs2015"
+)
 . "$PSScriptRoot\helpers.ps1"
 
 # PySide versions following 5.6 use a C++ parser based on Clang (http://clang.org/).
@@ -14,11 +17,30 @@ Get-Content "$PSScriptRoot\..\shared\sw_versions.txt" | Foreach-Object {
 
 $zip = "c:\users\qt\downloads\libclang.7z"
 $baseDestination = "C:\Utils\libclang-" + $libclang_version
-if ( $archVer -eq 64 ) {
-    $sha1 = "dc42beb0efff130c4d7dfef3c97adf26f1ab04e0"
-    $url = "https://download.qt.io/development_releases/prebuilt/libclang/libclang-release_$libclang_version-windows-vs2015_64.7z"
-    $destination = $baseDestination + "-64"
 
+function setURL() {
+    $script:url = "https://download.qt.io/development_releases/prebuilt/libclang/libclang-release_$libclang_version-windows-$toolchain`_$archVer.7z"
+}
+
+if ( $toolchain -eq "vs2015" ) {
+    if ( $archVer -eq 64 ) {
+        $sha1 = "dc42beb0efff130c4d7dfef3c97adf26f1ab04e0"
+        $destination = $baseDestination + "-64"
+
+        setURL
+        Download $url $url $zip
+        Verify-Checksum $zip $sha1
+
+        Extract-7Zip $zip C:\Utils\
+        Rename-Item C:\Utils\libclang $destination
+        Remove-Item -Force -Path $zip
+    }
+
+    $archVer=32
+    $sha1 = "64e826c00ae632fbb28655e6e1fa9194980e1205"
+    $destination = $baseDestination + "-32"
+
+    setURL
     Download $url $url $zip
     Verify-Checksum $zip $sha1
 
@@ -27,16 +49,32 @@ if ( $archVer -eq 64 ) {
     Remove-Item -Force -Path $zip
 }
 
-$sha1 = "64e826c00ae632fbb28655e6e1fa9194980e1205"
-$url = "https://download.qt.io/development_releases/prebuilt/libclang/libclang-release_$libclang_version-windows-vs2015_32.7z"
-$destination = $baseDestination + "-32"
+if ( $toolchain -eq "mingw" ) {
+    if ( $archVer -eq 64 ) {
+        $sha1 = "3e318f70a1e76c14365ced65f4fa7031bb730818"
+        $destination = $baseDestination + "-64"
 
-Download $url $url $zip
-Verify-Checksum $zip $sha1
+        setURL
+        Download $url $url $zip
+        Verify-Checksum $zip $sha1
 
-Extract-7Zip $zip C:\Utils\
-Rename-Item C:\Utils\libclang $destination
-Remove-Item -Force -Path $zip
+        Extract-7Zip $zip C:\Utils\
+        Rename-Item C:\Utils\libclang $destination
+        Remove-Item -Force -Path $zip
+    }
+
+    $archVer=32
+    $sha1 = "a9973192a01a9c16976ed0cc6ef6dac3dbc4a2d3"
+    $destination = $baseDestination + "-32"
+
+    setURL
+    Download $url $url $zip
+    Verify-Checksum $zip $sha1
+
+    Extract-7Zip $zip C:\Utils\
+    Rename-Item C:\Utils\libclang $destination
+    Remove-Item -Force -Path $zip
+}
 
 Set-EnvironmentVariable "LLVM_INSTALL_DIR" ($baseDestination + "-_ARCH_")
 Write-Output "libClang = $libclang_version" >> ~/versions.txt

coin/provisioning/qtci-windows-10-x86/08-libclang.ps1

@@ -1 +1 @@
-. "$PSScriptRoot\..\common\windows\libclang.ps1" 32
+. "$PSScriptRoot\..\common\windows\libclang.ps1" 32 vs2015

coin/provisioning/qtci-windows-10-x86_64/08-libclang.ps1

@@ -1 +1 @@
-. "$PSScriptRoot\..\common\windows\libclang.ps1" 64
+. "$PSScriptRoot\..\common\windows\libclang.ps1" 64 vs2015

coin/provisioning/qtci-windows-7-x86/08-libclang.ps1

@@ -0,0 +1 @@
+. "$PSScriptRoot\..\common\windows\libclang.ps1" 32 mingw