From 09b26b4ebf56c2f6660ebdc07c7f61416d650017 Mon Sep 17 00:00:00 2001
From: Andrew Tribick <ajtribick@googlemail.com>
Date: Sat, 8 Aug 2026 06:54:36 +0200
Subject: [PATCH] Avoid building dependent ports of FLTK on x64-linux (#53144)

---
 scripts/ci.feature.baseline.txt               | 2 ++
 scripts/test_ports/vcpkg-ci-mathgl/vcpkg.json | 5 ++++-
 scripts/test_ports/vcpkg-ci-octave/vcpkg.json | 5 ++++-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/scripts/ci.feature.baseline.txt b/scripts/ci.feature.baseline.txt
index 553b92bbc1..784774c593 100644
--- a/scripts/ci.feature.baseline.txt
+++ b/scripts/ci.feature.baseline.txt
@@ -744,6 +744,7 @@ mapnik[viewer]:arm64-linux=cascade
 materialx[render]:arm64-linux=feature-fails
 mathgl[arma]:arm64-linux=cascade
 mathgl[fltk]:arm64-linux=cascade
+mathgl[fltk]:x64-linux=skip  # Xft linking issue https://github.com/microsoft/vcpkg/issues/52825
 mathgl[glut]:arm64-linux=cascade
 mathgl[hdf5,qt5]:arm64-windows=cascade
 mathgl[opengl]:arm64-linux=feature-fails
@@ -823,6 +824,7 @@ nvtt[cuda]:x86-windows=cascade
 nvtt[cuda](x64 & (linux | windows))=feature-fails  # nvtt getting dated wrt cuda
 octave:arm64-linux=fail
 octave:arm64-osx=fail  # blas must select openblas instead of Accelerate
+octave[fltk]:x64-linux=skip  # Xft linking issue https://github.com/microsoft/vcpkg/issues/52825
 octave(android)=skip
 ode:arm64-windows=fail
 ogdf:arm64-linux=fail
diff --git a/scripts/test_ports/vcpkg-ci-mathgl/vcpkg.json b/scripts/test_ports/vcpkg-ci-mathgl/vcpkg.json
index a7976a1612..43348035fe 100644
--- a/scripts/test_ports/vcpkg-ci-mathgl/vcpkg.json
+++ b/scripts/test_ports/vcpkg-ci-mathgl/vcpkg.json
@@ -9,7 +9,10 @@
       "features": [
         "arma",
         "examples",
-        "fltk",
+        {
+          "name": "fltk",
+          "platform": "!(x64 & linux)"
+        },
         "gif",
         "glut",
         "gsl",
diff --git a/scripts/test_ports/vcpkg-ci-octave/vcpkg.json b/scripts/test_ports/vcpkg-ci-octave/vcpkg.json
index 1bf4ba97f6..5a2bfb55db 100644
--- a/scripts/test_ports/vcpkg-ci-octave/vcpkg.json
+++ b/scripts/test_ports/vcpkg-ci-octave/vcpkg.json
@@ -15,7 +15,10 @@
         "colamd",
         "curl",
         "cxsparse",
-        "fltk",
+        {
+          "name": "fltk",
+          "platform": "!(x64 & linux)"
+        },
         "fontconfig",
         "freetype",
         "graphicsmagick",