From c0c5ac0e3984ffe1911455cd22554fdd0cb05f68 Mon Sep 17 00:00:00 2001
From: Nicky <nicky.dasmijn@gmail.com>
Date: Sat, 16 Apr 2022 17:12:24 +0200
Subject: Only try copy voice files from slvoice_src_dir if that variable is
 set (seems to be the case for Windows)

---
 indra/cmake/Copy3rdPartyLibs.cmake | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

(limited to 'indra/cmake/Copy3rdPartyLibs.cmake')

diff --git a/indra/cmake/Copy3rdPartyLibs.cmake b/indra/cmake/Copy3rdPartyLibs.cmake
index d5b8e6c712..7d187b5eef 100644
--- a/indra/cmake/Copy3rdPartyLibs.cmake
+++ b/indra/cmake/Copy3rdPartyLibs.cmake
@@ -260,13 +260,16 @@ endif(WINDOWS)
 # Curiously, slvoice_files are only copied to SHARED_LIB_STAGING_DIR_RELEASE.
 # It's unclear whether this is oversight or intentional, but anyway leave the
 # single copy_if_different command rather than using to_staging_dirs.
-copy_if_different(
-    ${slvoice_src_dir}
-    "${SHARED_LIB_STAGING_DIR_RELEASE}"
-    out_targets
-    ${slvoice_files}
+
+if( slvoice_src_dir )
+    copy_if_different(
+            ${slvoice_src_dir}
+            "${SHARED_LIB_STAGING_DIR_RELEASE}"
+            out_targets
+            ${slvoice_files}
     )
-list(APPEND third_party_targets ${out_targets})
+    list(APPEND third_party_targets ${out_targets})
+endif()
 
 to_staging_dirs(
     ${vivox_lib_dir}
-- 
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