kc3-lang/libbsd

diff --git a/configure.ac b/configure.ac
index 5fed4c9..6b3ba2d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,14 +45,14 @@ AM_CONDITIONAL([HAVE_LIBTESTU01],
                [test "x$ac_cv_lib_testu01_unif01_CreateExternGenBits" = "xyes"])
 
 AS_CASE([$host_os],
-  [*-gnu], [
+  [*-gnu*], [
     # In old glibc versions (< 2.17) clock_gettime() is in librt.
     saved_LIBS="$LIBS"
     AC_SEARCH_LIBS([clock_gettime], [rt], [CLOCK_GETTIME_LIBS="-lrt"])
     AC_SUBST([CLOCK_GETTIME_LIBS])
     LIBS="$saved_LIBS"
   ],
-  [*-musl], [
+  [*-musl*], [
     # Upstream refuses to define this, we will do it ourselves then.
     AC_DEFINE([__MUSL__], [1], [Define to 1 if we are building for musl])
   ],