Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -720,13 +720,19 @@
 AS_IF([test x"$enable_sockets" != x"no" -a x"$enable_threads" != x"no"], [
 	AC_SUBST(OFHTTPCLIENTTESTS_M, "OFHTTPClientTests.m")
 ])
 
 case "$host" in
+	arm-apple-darwin*)
+		have_processes="no"
+		;;
 	*-*-mingw*)
 		have_processes="yes"
 		;;
+	*-*-msdosdjgpp*)
+		have_processes="no"
+		;;
 	*)
 		AC_CHECK_FUNCS([fork dup2 execvp kill], [
 			if test x"$ac_cv_func_fork" = x"yes" \
 			    -a x"$ac_cv_func_pipe" = x"yes" \
 			    -a x"$ac_cv_func_dup2" = x"yes" \