build: Make boost_url a list

Cmake 3.29 does not appreciate a space separated string being
substituted in.

Signed-off-by: Adam Emerson <aemerson@redhat.com>
(cherry picked from commit 35435420781f84e9b71f72b10e6842a89c06de7f)

diff --git a/cmake/modules/BuildBoost.cmake b/cmake/modules/BuildBoost.cmake
index 8db3de95963443ebd167780723ee3064a19a846d..1d793fb442e0f05737268755668589dfb0275028 100644 (file)
--- a/cmake/modules/BuildBoost.cmake
+++ b/cmake/modules/BuildBoost.cmake
@@ -155,7 +155,7 @@ function(do_build_boost root_dir version)
     set(boost_version 1.79.0)
     set(boost_sha256 475d589d51a7f8b3ba2ba4eda022b170e562ca3b760ee922c146b6c65856ef39)
     string(REPLACE "." "_" boost_version_underscore ${boost_version} )
-    string(JOIN " " boost_url
+    list(APPEND boost_url
       https://boostorg.jfrog.io/artifactory/main/release/${boost_version}/source/boost_${boost_version_underscore}.tar.bz2
       https://download.ceph.com/qa/boost_${boost_version_underscore}.tar.bz2)
     set(source_dir