From a4b35473602fdb2326cbcf08023f24026337c0ae Mon Sep 17 00:00:00 2001
From: Cassiano <calunaty@calunaty.com.br>
Date: Thu, 8 Oct 2026 22:11:40 -0400
Subject: [PATCH] patch(local): default-enable System.Drawing.EnableUnixSupport
 for .NET (Core) consumers

Not proposed upstream (yet) - this is a local-fork patch, kept independent
of the upstream review/merge cycle per our own CI PR backlog finding
(oldest open PR there is from 2024).

FastReport's engine is built on System.Drawing.Common/GDI+ (see the
_FR_GraphicsEngine=GDIPlus property right above this change). Since
.NET 6, that package throws PlatformNotSupportedException on any
non-Windows host unless an app-level AppContext switch is set - every
consumer of the official package hits that exception on Linux with zero
indication why, since nothing in this repo sets or documents the switch.

This patches the NuGet build-props shipped inside the FastReport.OpenSource
package (Pack/FastReport.OpenSource/build/FastReport.OpenSource.props) to
set RuntimeHostConfigurationOption System.Drawing.EnableUnixSupport=true
for any .NETCoreApp consumer, transitively, with no action required on the
consumer's part. No-op on Windows.

Does NOT fix the deeper issue: Linux hosts still need libgdiplus installed
natively for GDI+ calls to actually succeed once the exception is gone.

Validated locally end-to-end (packed to a local feed, consumed from a
throwaway console app, compared runtimeconfig.json against the official
2026.2.8 package from nuget.org):

  official package  -> configProperties has no System.Drawing.EnableUnixSupport key
  patched package    -> configProperties["System.Drawing.EnableUnixSupport"] = true
---
 .../build/FastReport.OpenSource.props               | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Pack/FastReport.OpenSource/build/FastReport.OpenSource.props b/Pack/FastReport.OpenSource/build/FastReport.OpenSource.props
index 4547d33d..234c9a49 100644
--- a/Pack/FastReport.OpenSource/build/FastReport.OpenSource.props
+++ b/Pack/FastReport.OpenSource/build/FastReport.OpenSource.props
@@ -7,4 +7,17 @@
     <_FRProductTypeWithEngine>$(_FRProductType).$(_FR_GraphicsEngine)</_FRProductTypeWithEngine>
   </PropertyGroup>
 
+  <!--
+    LOCAL PATCH (not upstream): FastReport's engine is built on System.Drawing.Common/GDI+
+    (see _FR_GraphicsEngine above). Since .NET 6, that package throws
+    PlatformNotSupportedException on non-Windows hosts unless this switch is enabled.
+    Every consumer of this package was silently hitting that exception on Linux with no
+    hint why. Flip the switch on by default for any .NET (Core) consumer, Windows included
+    (no-op there) - this only removes the up-front exception; it still requires libgdiplus
+    to be installed on the Linux host for GDI+ calls to actually succeed.
+  -->
+  <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETCoreApp'">
+    <RuntimeHostConfigurationOption Include="System.Drawing.EnableUnixSupport" Value="true" Trim="false" />
+  </ItemGroup>
+
 </Project>
\ No newline at end of file