From 85580b7d5ba9b3f0e4a1be0e0b07afd68ca7f9fc Mon Sep 17 00:00:00 2001
From: Brendan Burns <brendan.d.burns@gmail.com>
Date: Thu, 21 Nov 2019 22:30:32 -0800
Subject: [PATCH] Improve Ubuntu detection for Ubuntu derivatives like
 GalliumOS etc.

---
 build.psm1 | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/build.psm1 b/build.psm1
index 6f79686ef6c..40a1b3aa3c6 100644
--- a/build.psm1
+++ b/build.psm1
@@ -134,11 +134,18 @@ function Get-EnvironmentInformation
 
     if ($Environment.IsLinux) {
         $LinuxInfo = Get-Content /etc/os-release -Raw | ConvertFrom-StringData
+        $lsb_release = Get-Command lsb_release -Type Application -ErrorAction Ignore
+        if ($lsb_release) {
+            $LinuxID = & $lsb_release -is
+        }
+        else {
+            $LinuxID = ""
+        }
 
         $environment += @{'LinuxInfo' = $LinuxInfo}
         $environment += @{'IsDebian' = $LinuxInfo.ID -match 'debian' -or $LinuxInfo.ID -match 'kali'}
         $environment += @{'IsDebian9' = $Environment.IsDebian -and $LinuxInfo.VERSION_ID -match '9'}
-        $environment += @{'IsUbuntu' = $LinuxInfo.ID -match 'ubuntu'}
+        $environment += @{'IsUbuntu' = $LinuxInfo.ID -match 'ubuntu' -or $LinuxID -match 'Ubuntu'}
         $environment += @{'IsUbuntu16' = $Environment.IsUbuntu -and $LinuxInfo.VERSION_ID -match '16.04'}
         $environment += @{'IsUbuntu18' = $Environment.IsUbuntu -and $LinuxInfo.VERSION_ID -match '18.04'}
         $environment += @{'IsCentOS' = $LinuxInfo.ID -match 'centos' -and $LinuxInfo.VERSION_ID -match '7'}