LU-2456 lnet: DLC user space Configuration library

[fs/lustre-release.git] / lnet / autoconf / lustre-lnet.m4

diff --git a/lnet/autoconf/lustre-lnet.m4 b/lnet/autoconf/lustre-lnet.m4
index 1df8ca3..314e935 100644 (file)
--- a/lnet/autoconf/lustre-lnet.m4
+++ b/lnet/autoconf/lustre-lnet.m4
@@ -139,6 +139,36 @@ AC_SUBST(USOCKLND)
 ]) # LN_CONFIG_USOCKLND
 
 #
+# LN_CONFIG_DLC
+#
+# Configure dlc if enabled
+#
+# if libyaml is set (IE libyaml installed) and enable_dlc = yes then build
+# dlc other wise (IE if libyaml is not set or enable_dlc = no) then don't
+# build dlc.
+#
+AC_DEFUN([LN_CONFIG_DLC], [
+       AC_CHECK_LIB([yaml],  [yaml_parser_initialize],[
+               LIBYAML="libyaml"],[
+               LIBYAML=""],[-lm])
+       AC_MSG_CHECKING([whether to enable dlc])
+       AC_ARG_ENABLE([dlc],
+               AC_HELP_STRING([--disable-dlc],
+                       [disable building dlc]),
+                       [], [enable_dlc="yes"])
+       AC_MSG_RESULT([$enable_dlc])
+       USE_DLC=""
+       AS_IF([test "x$enable_dlc" = xyes],
+             [AS_IF([test "x$LIBYAML" = xlibyaml], [
+                       USE_DLC="yes"
+               ], [
+                       AC_MSG_RESULT([no (libyaml not present)])
+               ])
+       ])
+       AC_SUBST(USE_DLC)
+])
+
+#
 # LN_CONFIG_QUADRICS
 #
 # check if quadrics support is in this kernel
@@ -667,6 +697,7 @@ AC_SUBST(LIBWRAP)
 
 LN_CONFIG_MAX_PAYLOAD
 LN_CONFIG_USOCKLND
+LN_CONFIG_DLC
 ]) # LN_CONFIGURE
 
 #
@@ -682,6 +713,7 @@ AM_CONDITIONAL(BUILD_RALND,      test x$RALND = "xralnd")
 AM_CONDITIONAL(BUILD_GNILND,     test x$GNILND = "xgnilnd")
 AM_CONDITIONAL(BUILD_GNILND_RCA, test x$GNILNDRCA = "xgnilndrca")
 AM_CONDITIONAL(BUILD_USOCKLND,   test x$USOCKLND = "xusocklnd")
+AM_CONDITIONAL(BUILD_DLC,        test x$USE_DLC = "xyes")
 ]) # LN_CONDITIONALS
 
 #
@@ -721,5 +753,6 @@ lnet/ulnds/Makefile
 lnet/ulnds/autoMakefile
 lnet/ulnds/socklnd/Makefile
 lnet/utils/Makefile
+lnet/utils/lnetconfig/Makefile
 ])
 ]) # LN_CONFIG_FILES