diff -up thunderbird-68.0/toolkit/moz.configure.elfhack thunderbird-68.0/toolkit/moz.configure
--- thunderbird-68.0/toolkit/moz.configure.elfhack 2019-08-29 16:33:28.491708653 +0200
+++ thunderbird-68.0/toolkit/moz.configure 2019-08-29 16:33:58.019805525 +0200
@@ -1130,7 +1130,7 @@ with only_when('--enable-compile-environ
help='{Enable|Disable} elf hacks')
set_config('USE_ELF_HACK',
- depends_if('--enable-elf-hack')(lambda _: True))
+ depends_if('--enable-elf-hack')(lambda _: False))
@depends(check_build_environment)