X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/3966b9c609fef966743d50b5dca8d783a30c396d..68b2cc55389d4691fdf6e124feb26e08258db967:/configure.in

diff --git a/configure.in b/configure.in
index a701a004..72f1ab41 100644
--- a/configure.in
+++ b/configure.in
@@ -5,6 +5,12 @@ AC_CONFIG_SRCDIR([byteorder.h])
 AC_CONFIG_HEADER(config.h)
 AC_PREREQ(2.52)
 
+RSYNC_VERSION=2.4.7pre5
+AC_SUBST(RSYNC_VERSION)
+AC_MSG_NOTICE([Configuring rsync $RSYNC_VERSION])
+
+AC_DEFINE_UNQUOTED(RSYNC_VERSION, ["$RSYNC_VERSION"], [rsync release version])
+
 LDFLAGS=${LDFLAGS-""}
 
 AC_CANONICAL_TARGET([])
@@ -13,11 +19,13 @@ dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_INSTALL
+AC_PROG_CC_STDC
 AC_SUBST(SHELL)
 
-RSYNC_VERSION=2.4.7pre4
-AC_SUBST(RSYNC_VERSION)
-AC_DEFINE_UNQUOTED(RSYNC_VERSION, ["$RSYNC_VERSION"], [rsync release version])
+if test "$xac_cv_prog_cc_stdc" = xno
+then
+	AC_MSG_WARN([rsync requires an ANSI C compiler and you don't seem to have one])
+fi
 
 # compile with optimisation and without debugging by default, unless
 # --debug is given.  We must decide this before testing the compiler.
@@ -94,6 +102,11 @@ ipv6type=unknown
 ipv6lib=none
 ipv6trylibc=yes
 
+AC_ARG_ENABLE(ipv6, 
+	AC_HELP_STRING([--disable-ipv6], [don't even try to use IPv6]))
+
+if test "x$enable_ipv6" != xno
+then
 	AC_MSG_CHECKING([ipv6 stack type])
 	for i in inria kame linux-glibc linux-inet6 toshiba v6d zeta; do
 		case $i in
@@ -179,7 +192,8 @@ yes
 	done
 	AC_MSG_RESULT($ipv6type)
 
-AC_SEARCH_LIBS(getaddrinfo, inet6)
+	AC_SEARCH_LIBS(getaddrinfo, inet6)
+fi
 
 AC_C_BIGENDIAN
 AC_HEADER_DIRENT