[sr-dev] git:5.2:052c647e: core: workaround related to T_OPT for alpine linux musl C library (GH #2095)

Module: kamailio Branch: 5.2 Commit: 052c647e310b59efd06903668aec231eadf321c2 URL: https://github.com/kamailio/kamailio/commit/052c647e310b59efd06903668aec231… Author: Henning Westerholt &lt;hw(a)skalatan.de&gt; Committer: Henning Westerholt &lt;hw(a)skalatan.de&gt; Date: 2019-10-07T16:35:11+02:00 core: workaround related to T_OPT for alpine linux musl C library (GH #2095) (cherry picked from commit cec1043a9c4daa39b4245b87f28fb5566e8627bd) --- Modified: src/core/resolve.c --- Diff: https://github.com/kamailio/kamailio/commit/052c647e310b59efd06903668aec231… Patch: https://github.com/kamailio/kamailio/commit/052c647e310b59efd06903668aec231… --- diff --git a/src/core/resolve.c b/src/core/resolve.c index 9f9705341e..04e65962ea 100644 --- a/src/core/resolve.c +++ b/src/core/resolve.c @@ -32,8 +32,12 @@ #include <resolv.h> #include <string.h> -/* older glibc < 2.25 does not include T_OPT in nameser_compat.h yet */ -#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 25 +/* + * Older glibc < 2.25 does not include T_OPT in nameser_compat.h yet. + * On alpine linux musl library it is also not defined. There is no + * musl feature test macro, so we look for glibc instead. + */ +#if (defined __GLIBC__ && __GLIBC__ == 2 && __GLIBC_MINOR__ < 25) || !defined __GLIBC__ #ifndef T_OPT #define T_OPT ns_t_opt #endif