Fix: add a temporary workaround for giflib

At the moment, the giflib recipe in the Conan Centre is broken. This is
due to a change in the directory structure of the upstream giflib
project. A pull request has been submitted to Conan (29758), but it has
not yet been merged. In the meantime, this patch will do the job for
LuxCoreDeps.
However, it will need to be reverted once the pull request has
been accepted.

Author: howetuft

run-conan.sh

@@ -71,6 +71,16 @@ if [ ! -d "conan-center-index" ]; then
   cd conan-center-index
   git reset --hard ${CONAN_COMMIT}
   git clean -df  # cleans any untracked files/folders
+
+  # Workaround for temporary unavailability of giflib in conan index (2026-03-22)
+  # TODO Remove when patch has been accepted
+  #git remote add "upstream" git@github.com:conan-io/conan-center-index.git
+  #git fetch upstream pull/29758/head:giflib
+  #git cherry-pick 0e95d1b1e8380d72df48c7c48efe14f39239826a
+  git config --global user.name "LuxCoreDeps"
+  git config --global user.email "luxcoredeps@luxcore.com"
+  curl -L https://github.com/conan-io/conan-center-index/pull/29758.patch | git am
+
   cd ..
 fi
 conan remote add mycenter ./conan-center-index --force