From 5cbb101b2dd6b7e160b8f35f50f64d2a7bd75d15 Mon Sep 17 00:00:00 2001
From: Adam Szmigin <smidge@xsco.net>
Date: Tue, 13 Apr 2021 23:30:32 +0100
Subject: [PATCH] CMake fix passing multiple paths to libdjinterop

---
 CMakeLists.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c368e69665c..b5b0821cb64 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1722,6 +1722,11 @@ if(ENGINEPRIME)
     set(DJINTEROP_INSTALL_DIR "${CMAKE_CURRENT_BINARY_DIR}/lib/libdjinterop-install")
     set(DJINTEROP_LIBRARY "lib/${CMAKE_STATIC_LIBRARY_PREFIX}djinterop${CMAKE_STATIC_LIBRARY_SUFFIX}")
     file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/download")
+
+    # CMake does not pass lists of paths properly to external projects.
+    # This is worked around by changing the list separator.
+    string(REPLACE ";" "|" PIPE_DELIMITED_CMAKE_PREFIX_PATH "${CMAKE_PREFIX_PATH}")
+
     # External project sources must be downloaded as an archive into DOWNLOAD_DIR
     # from an URL to keep offline builds like for Fedora/RPM Fusion working!
     ExternalProject_Add(libdjinterop
@@ -1729,12 +1734,13 @@ if(ENGINEPRIME)
       URL_HASH SHA256=87b3e6c726c208333d55b7e7e3af0a7230c9ad9edb3ca0ca81feffe17b3fc008
       DOWNLOAD_DIR "${CMAKE_CURRENT_BINARY_DIR}/download/libdjinterop"
       INSTALL_DIR ${DJINTEROP_INSTALL_DIR}
+      LIST_SEPARATOR "|"
       CMAKE_ARGS
         -DBUILD_SHARED_LIBS=OFF
         -DCMAKE_SKIP_INSTALL_ALL_DEPENDENCY=ON
         -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
         -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
-        -DCMAKE_PREFIX_PATH:PATH=${CMAKE_PREFIX_PATH}
+        -DCMAKE_PREFIX_PATH=${PIPE_DELIMITED_CMAKE_PREFIX_PATH}
         -DCMAKE_INSTALL_LIBDIR:PATH=lib
         -DCMAKE_MODULE_PATH:PATH=${CMAKE_MODULE_PATH}
         -DSYSTEM_SQLITE=${DJINTEROP_SYSTEM_SQLITE}