configure: Document more switches to disable features

This helps a lot when building on one machine and running on another
that doesn't have all libraries installed. The switches are all there,
list them in ./configure --help so that future users don't have to
search the shell script.

diff --git a/configure b/configure
index ab89df7d57e06ef84e1b957edea273ddedf24a44..5e11195d60b66cb003d7e5eeff6d7a0ed7355299 100755 (executable)
--- a/configure
+++ b/configure
@@ -226,6 +226,9 @@ if test "$show_help" = "yes" ; then
   echo "--enable-gfio           Enable building of gtk gfio"
   echo "--disable-numa          Disable libnuma even if found"
   echo "--disable-rdma          Disable RDMA support even if found"
+  echo "--disable-rados         Disable Rados support even if found"
+  echo "--disable-rbd           Disable Rados Block Device even if found"
+  echo "--disable-http          Disable HTTP support even if found"
   echo "--disable-gfapi         Disable gfapi"
   echo "--enable-libhdfs        Enable hdfs support"
   echo "--disable-lex           Disable use of lex/yacc for math"