X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=configure.in;h=7b842ce1a93b1e9400f557e9a35c8f2b11709dad;hb=2c8651e76d5629948778fb1b3d15ccc591d14da0;hp=86ce18feb3e64dc1d3865ed24cfc0e74357e4c34;hpb=bd9a742e2fce5aef553339325fd5919ab0b61910;p=userv.git

diff --git a/configure.in b/configure.in
index 86ce18f..7b842ce 100644
--- a/configure.in
+++ b/configure.in
@@ -39,8 +39,22 @@ AC_ARG_ENABLE(debug,
 ])
 
 AC_PROG_CC
+AC_PROG_CPP
 AC_PROG_INSTALL
 
+AC_CACHE_CHECK(for EPROTO,userv_cv_hdr_eproto,
+ AC_EGREP_CPP(yes,
+[
+#include <errno.h>
+#ifdef EPROTO
+ yes
+#endif
+],userv_cv_hdr_eproto=yes,userv_cv_hdr_eproto=no))
+if test $userv_cv_hdr_eproto = yes
+then
+	AC_DEFINE(HAVE_EPROTO)
+fi
+
 AC_SUBST(OPTIMISE)
 if test "${GCC-no}" = yes; then
  OPTIMISE=-O2