CM/CONFIGURE: fail if no ibcm found and --with-cm set

(cherry picked from commit 1bb31d4)
openucx · May 27, 2019 · 2567455 · 2567455
1 parent dc4f560
commit 2567455
Showing 1 changed file with 11 additions and 4 deletions.
diff --git a/src/uct/ib/cm/configure.m4 b/src/uct/ib/cm/configure.m4
@@ -9,18 +9,25 @@
 #
 # CM (IB connection manager) Support
 #
+cm_happy="no"
+
 AC_ARG_WITH([cm],
             [AC_HELP_STRING([--with-cm], [Compile with IB Connection Manager support])],
             [],
-            [with_cm=yes])
+            [with_cm=guess])
 
 AS_IF([test "x$with_cm" != xno],
       [save_LIBS="$LIBS"
        AC_CHECK_LIB([ibcm], [ib_cm_send_req],
                     [AC_SUBST(IBCM_LIBS, [-libcm])
-                     uct_ib_modules+=":cm"],
-                    [with_cm=no])
+                     uct_ib_modules+=":cm"
+                     cm_happy="yes"],
+                    [AS_IF([test "x$with_cm" = xyes],
+                           [AC_MSG_ERROR([CM requested but lib ibcm not found])],
+                           [AC_MSG_WARN([CM support not found, skipping])]
+                           )
+                    ])
        LIBS="$save_LIBS"])
 
-AM_CONDITIONAL([HAVE_TL_CM], [test "x$with_cm" != xno])
+AM_CONDITIONAL([HAVE_TL_CM], [test "x$cm_happy" != xno])
 AC_CONFIG_FILES([src/uct/ib/cm/Makefile])