--- syslog-ng-3.26.1/configure.ac.orig	2020-04-04 21:37:22.891000000 +0200
+++ syslog-ng-3.26.1/configure.ac	2020-04-04 21:40:46.085000000 +0200
@@ -767,11 +767,11 @@
 dnl ***************************************************************************
 dnl Checks for libraries
 AC_CHECK_LIB(door, door_create, BASE_LIBS="$BASE_LIBS -ldoor")
-AC_CHECK_LIB(socket, socket, BASE_LIBS="$BASE_LIBS -lsocket")
+AC_CHECK_FUNC([socket], [:], [AC_CHECK_LIB(socket, socket, BASE_LIBS="$BASE_LIBS -lsocket")])
 AC_CHECK_LIB(rt, nanosleep, BASE_LIBS="$BASE_LIBS -lrt")
-AC_CHECK_FUNC(gethostbyname, [], AC_CHECK_LIB(nsl, gethostbyname, BASE_LIBS="$BASE_LIBS -lnsl"))
-AC_CHECK_LIB(regex, regexec, REGEX_LIBS="-lregex")
-AC_CHECK_LIB(resolv, res_init, RESOLV_LIBS="-lresolv")
+AC_CHECK_FUNC([gethostbyname], [:], [AC_CHECK_LIB(nsl, gethostbyname, BASE_LIBS="$BASE_LIBS -lnsl")])
+AC_CHECK_FUNC([regexec], [:], [AC_CHECK_LIB(regex, regexec, REGEX_LIBS="-lregex")])
+AC_CHECK_FUNC([resolv], [:], [AC_CHECK_LIB(resolv, res_init, RESOLV_LIBS="-lresolv")])
 
 AC_CHECK_FUNCS(strdup		\
 	strtol			\