v.builder: add `-Wl,--allow-multiple-definition` when targeting FreeBSD

pull/11229/head
Delyan Angelov 2021-08-18 12:57:44 +03:00
parent 0121c8b4fd
commit 9ca99c6f93
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1 changed files with 4 additions and 0 deletions

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@ -318,6 +318,10 @@ fn (mut v Builder) setup_ccompiler_options(ccompiler string) {
if ccoptions.debug_mode && os.user_os() != 'windows' && v.pref.build_mode != .build_module {
ccoptions.linker_flags << '-rdynamic' // needed for nicer symbolic backtraces
}
if v.pref.os == .freebsd {
// Needed for -usecache on FreeBSD 13, otherwise we get `ld: error: duplicate symbol: _const_math__bits__de_bruijn32` errors there
ccoptions.linker_flags << '-Wl,--allow-multiple-definition'
}
if ccompiler != 'msvc' && v.pref.os != .freebsd {
ccoptions.wargs << '-Werror=implicit-function-declaration'