From 687b2a9ac9f4e1018693988638761096b1330905 Mon Sep 17 00:00:00 2001
From: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Date: Tue, 26 Jan 2021 15:18:12 +0200
Subject: [PATCH] Search libgdiplus in macports install location (#47373)

When `libgdiplus` is installed via macports, `System.TypeInitializationException` exception is thrown.
This is because macports installs the library in `/opt/local/lib`.

```sh
$ port install libgdiplus
$ port contents libgdiplus
Port libgdiplus contains:
  /opt/local/lib/libgdiplus.0.dylib
  /opt/local/lib/libgdiplus.a
  /opt/local/lib/libgdiplus.dylib
  /opt/local/lib/pkgconfig/libgdiplus.pc
  /opt/local/share/doc/libgdiplus/AUTHORS
  /opt/local/share/doc/libgdiplus/COPYING
  /opt/local/share/doc/libgdiplus/ChangeLog
  /opt/local/share/doc/libgdiplus/LICENSE
  /opt/local/share/doc/libgdiplus/NEWS
  /opt/local/share/doc/libgdiplus/README.md
  /opt/local/share/doc/libgdiplus/TODO
```

PR adds `/opt/local/lib/libgdiplus.dylib` as a well-known probing path.
---
 .../src/System/Drawing/GdiplusNative.Unix.cs               | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/libraries/System.Drawing.Common/src/System/Drawing/GdiplusNative.Unix.cs b/src/libraries/System.Drawing.Common/src/System/Drawing/GdiplusNative.Unix.cs
index 799ebd0f5c197..1d30015640544 100644
--- a/src/libraries/System.Drawing.Common/src/System/Drawing/GdiplusNative.Unix.cs
+++ b/src/libraries/System.Drawing.Common/src/System/Drawing/GdiplusNative.Unix.cs
@@ -35,7 +35,12 @@ internal static IntPtr LoadNativeLibrary()
                 {
                     if (!NativeLibrary.TryLoad("libgdiplus.dylib", assembly, default, out lib))
                     {
-                        NativeLibrary.TryLoad("/usr/local/lib/libgdiplus.dylib", assembly, default, out lib);
+                        // homebrew install location
+                        if (!NativeLibrary.TryLoad("/usr/local/lib/libgdiplus.dylib", assembly, default, out lib))
+                        {
+                            // macports install location
+                            NativeLibrary.TryLoad("/opt/local/lib/libgdiplus.dylib", assembly, default, out lib);
+                        }
                     }
                 }
                 else