build: check for getpeereid

In common/unix-peer.c, we are checking if HAVE_GETPEEREID is defined,
however, we never actually check if getpeereid() is available, so
fix that by checking this function using AC_CHECK_FUNCS().

diff --git a/configure.ac b/configure.ac
index ec2c259d6dc0210d25a4e71d290e7eafae3d7104..12feff8c2b69fb68c8ef1abfc5418959767aba22 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -91,6 +91,7 @@ if test "$os_unix" = "yes"; then
        AC_CHECK_FUNCS([strnstr memdup strndup strerror_r])
        AC_CHECK_FUNCS([fdwalk])
        AC_CHECK_FUNCS([setenv])
+       AC_CHECK_FUNCS([getpeereid])
 
        # Required functions
        AC_CHECK_FUNCS([gmtime_r],