Fix some problems with the libevent and hwloc frameworks:

* change components from setting <framework>_base_include to
   opal_<framework>_<component>_include; the framework m4 will figure
   out the winning component and pick the right "include" shell
   variable.  Ditto for the other shell variables (cppflags, ldflags,
   etc.). 
 * misc fixes to hwloc/external
 * add a bunch of missing "opal_" prefixes to shell variables
 * add a few more / update a few comments in framework m4's

This commit was SVN r25174.

opal/mca/event/configure.m4

@@ -1,6 +1,6 @@
 dnl -*- shell-script -*-
 dnl
-dnl Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved. 
+dnl Copyright (c) 2010-2011 Cisco Systems, Inc.  All rights reserved.
 dnl $COPYRIGHT$
 dnl 
 dnl Additional copyrights may follow
@@ -11,13 +11,15 @@ dnl
 # There will only be one component used in this framework, and it will
 # be selected at configure time by priority.  Components must set
 # their priorities in their configure.m4 files.  They must also set
-# the shell variable $event_base_include to a header file name
+# the shell variable $opal_event_<component>_include to a header file
-# (relative to the top OMPI source directory) that will be included in
+# name (relative to opal/mca/event) that will be included in
-# opal/mca/event/event.h.  Optionally, components may also set the
+# opal/mca/event/event.h.
-# shell variable $event_base_include_cppflags if additional CPPFLAGS
+
-# must be used with this header file.  The event framework will add
+# Optionally, components may also set the shell variable
-# the winning component's $event_base_include_cppflags to the global
+# $opal_event_<component>_include_cppflags if additional CPPFLAGS must
-# $CPPFLAGS.
+# be used with this header file.  The event framework will add the
+# winning component's $opal_event_<component>_include_cppflags to the
+# global $CPPFLAGS.
 
 dnl We only want one winning component.
 m4_define(MCA_opal_event_CONFIGURE_MODE, STOP_AT_FIRST_PRIORITY)
@@ -33,6 +35,16 @@ AC_DEFUN([MCA_opal_event_CONFIG],[
           [AC_MSG_WARN([Did not find a suitable static opal event component])
            AC_MSG_ERROR([Cannot continue])])
 
+    # If there's any spaces in the middle of the string, then we found
+    # more than 1 eligible static component.  That's no good (and
+    # should never happen, but let's be sure)!
+    opal_event_winner=`echo $MCA_opal_event_STATIC_COMPONENTS | sed -e 's/^[ ]+//' | sed -e 's/[ ]+$//'`
+
+    AS_IF([test "`echo $opal_event_winner | sed 's/ //'`" != "$opal_event_winner"],
+          [AC_MSG_WARN([Found more than 1 eligible static opal event component])
+           AC_MSG_WARN([This should never happen!])
+           AC_MSG_ERROR([Cannot continue])])
+
     # We need to find out what the underlying component set
     # HAVE_WORKING_EVENTOPS was set to.  This is for systems that
     # don't have working poll(), etc. (e.g., Cray) -- we still need an
@@ -51,17 +63,23 @@ AC_DEFUN([MCA_opal_event_CONFIG],[
                        [$OPAL_HAVE_WORKING_EVENTOPS], 
                        [Whether our event component has working event operations or not (if not, then assumedly it only has working timers and signals)])
 
-    # someone should have set this...
+    # The winning component will have told us where their header file
-    AS_IF([test "$event_base_include" = ""],
+    # is located
-          [AC_MSG_WARN([Missing implementation header])
+    AC_MSG_CHECKING([for winning event component header file])
+    eval "opal_event_base_include=\`echo \$opal_event_${opal_event_winner}_include\`"
+    AS_IF([test "$opal_event_base_include" = ""],
+          [AC_MSG_RESULT([missing])
+           AC_MSG_WARN([Missing implementation header])
            AC_MSG_ERROR([Cannot continue])])
+    AC_MSG_RESULT([$opal_event_base_include])
 
     AC_DEFINE_UNQUOTED([MCA_event_IMPLEMENTATION_HEADER],
-                       ["opal/mca/event/$event_base_include"],
+                       ["opal/mca/event/$opal_event_base_include"],
                        [Header to include for event implementation])
     AC_MSG_CHECKING([for winning component additional CPPFLAGS])
-    AS_IF([test "$event_base_include_cppflags" != ""],
+    eval "opal_event_base_include_cppflags=\`echo \$opal_event_${opal_event_winner}_include_cppflags\`"
-          [AC_MSG_RESULT([$event_base_include_cppflags])
+    AS_IF([test "$opal_event_base_include_cppflags" != ""],
-           CPPFLAGS="$CPPFLAGS $event_base_include_cppflags"],
+          [AC_MSG_RESULT([$opal_event_base_include_cppflags])
+           CPPFLAGS="$CPPFLAGS $opal_event_base_include_cppflags"],
           [AC_MSG_RESULT([none])])
 ])

opal/mca/event/libevent2013/.ompi_unignore

@@ -1,2 +1,3 @@
+jsquyres
 rhc
 hjelmn

opal/mca/event/libevent2013/configure.m4

@@ -1,6 +1,6 @@
 # -*- shell-script -*-
 #
-# Copyright (c) 2009-2010 Cisco Systems, Inc.  All rights reserved. 
+# Copyright (c) 2009-2011 Cisco Systems, Inc.  All rights reserved.
 #
 # $COPYRIGHT$
 # 
@@ -169,16 +169,16 @@ EOF
 
            # Must set this variable so that the framework m4 knows
            # what file to include in opal/mca/event/event.h
-           event_base_include="libevent2013/libevent2013.h"
+           opal_event_libevent2013_include="libevent2013/libevent2013.h"
 
            # We also set _cppflags so that when including
            # libevent2013.h, it can find all the actual libevent files.
            # Be a little friendly and only include the -I for the
            # builddir if it's different than the srcdir.
            file=$basedir/libevent
-           event_base_include_cppflags="-I$OMPI_TOP_SRCDIR/$file -I$OMPI_TOP_SRCDIR/$file/include"
+           opal_event_libevent2013_include_cppflags="-I$OMPI_TOP_SRCDIR/$file -I$OMPI_TOP_SRCDIR/$file/include"
            AS_IF([test "$OMPI_TOP_BUILDDIR" != "$OMPI_TOP_SRCDIR"],
-                 [event_base_include_cppflags="$event_base_include_cppflags -I$OMPI_TOP_BUILDDIR/$file/include"])
+                 [opal_event_libevent2013_include_cppflags="$opal_event_libevent2013_include_cppflags -I$OMPI_TOP_BUILDDIR/$file/include"])
            if test "$with_devel_headers" = "yes" ; then
                WRAPPER_EXTRA_CPPFLAGS="$WRAPPER_EXTRA_CPPFLAGS "'-I${includedir}/openmpi/opal/mca/event/libevent2013/libevent -I${includedir}/openmpi/opal/mca/event/libevent2013/libevent/include'
            fi

opal/mca/event/libevent207/configure.m4

@@ -1,6 +1,6 @@
 # -*- shell-script -*-
 #
-# Copyright (c) 2009-2010 Cisco Systems, Inc.  All rights reserved. 
+# Copyright (c) 2009-2011 Cisco Systems, Inc.  All rights reserved.
 #
 # $COPYRIGHT$
 # 
@@ -169,16 +169,16 @@ EOF
 
            # Must set this variable so that the framework m4 knows
            # what file to include in opal/mca/event/event.h
-           event_base_include="libevent207/libevent207.h"
+           opal_event_libevent207_include="libevent207/libevent207.h"
 
            # We also set _cppflags so that when including
            # libevent207.h, it can find all the actual libevent files.
            # Be a little friendly and only include the -I for the
            # builddir if it's different than the srcdir.
            file=$basedir/libevent
-           event_base_include_cppflags="-I$OMPI_TOP_SRCDIR/$file -I$OMPI_TOP_SRCDIR/$file/include"
+           opal_event_libevent207_include_cppflags="-I$OMPI_TOP_SRCDIR/$file -I$OMPI_TOP_SRCDIR/$file/include"
            AS_IF([test "$OMPI_TOP_BUILDDIR" != "$OMPI_TOP_SRCDIR"],
-                 [event_base_include_cppflags="$event_base_include_cppflags -I$OMPI_TOP_BUILDDIR/$file/include"])
+                 [opal_event_libevent207_include_cppflags="$opal_event_libevent207_include_cppflags -I$OMPI_TOP_BUILDDIR/$file/include"])
            if test "$with_devel_headers" = "yes" ; then
                WRAPPER_EXTRA_CPPFLAGS="$WRAPPER_EXTRA_CPPFLAGS "'-I${includedir}/openmpi/opal/mca/event/libevent207/libevent -I${includedir}/openmpi/opal/mca/event/libevent207/libevent/include'
            fi

opal/mca/hwloc/configure.m4

@@ -11,14 +11,19 @@ dnl
 # There will only be one component used in this framework, and it will
 # be selected at configure time by priority.  Components must set
 # their priorities in their configure.m4 files.  They must also set
-# the shell variable $hwloc_base_include to a header file name
+# the shell variable $opal_hwloc_<component>_include to a header file
-# (relative to the top OMPI source directory) that will be included in
+# name (relative to the top OMPI source directory) that will be
-# opal/mca/hwloc/hwloc.h.  Optionally, components may also set the
+# included in opal/mca/hwloc/hwloc.h.
-# shell variable $hwloc_base_cppflags if additional CPPFLAGS must be
+
-# used with this header file, and $hwloc_base_ldflags and
+# Optionally, components may also set the shell variable
-# $hwloc_base_libs.  The hwloc framework will add the winning
+# $opal_hwloc_<component>_cppflags if additional CPPFLAGS must be used
-# component's $hwloc_base_* to CPPFLAGS, LDFLAGS, and LIBS,
+# with this header file, and $opal_hwloc_<component>_ldflags and
-# respectively.
+# $opal_hwloc_<component>_libs.  The hwloc framework will add the
+# winning component's $opal_hwloc_<c,oponent>_* to CPPFLAGS, LDFLAGS,
+# and LIBS, respectively.
+
+# Finally, components set $opal_hwloc_<component>_enable_xml to 0 or
+# 1, indicating whether they have XML support or not.
 
 dnl We only want one winning component.
 m4_define(MCA_opal_hwloc_CONFIGURE_MODE, STOP_AT_FIRST_PRIORITY)
@@ -38,6 +43,8 @@ AC_DEFUN([MCA_opal_hwloc_CONFIG],[
     AC_REQUIRE([MCA_opal_hwloc_CONFIG_REQUIRE])
 ])
 
+# See comments above for why this is a separate macro.
+
 AC_DEFUN([MCA_opal_hwloc_CONFIG_REQUIRE],[
 
    # If this shell variable is not 1, then this m4 is being invoked
@@ -54,7 +61,7 @@ AC_DEFUN([MCA_opal_hwloc_CONFIG_REQUIRE],[
                        [Build hwloc support.  DIR can take one of three values: "internal", "external", or a valid directory name.  "internal" (or no DIR value) forces Open MPI to use its internal copy of hwloc.  "external" forces Open MPI to use an external installation of hwloc.  Supplying a valid directory name also forces Open MPI to use an external installation of hwloc, and adds DIR/include, DIR/lib, and DIR/lib64 to the search path for headers and libraries.]))
 
     # set defaults of not having any support
-    hwloc_base_enable_xml=0
+    opal_hwloc_base_enable_xml=0
     OPAL_HAVE_HWLOC=0
 
     # Configure all the components - always have to do this, even if
@@ -64,6 +71,9 @@ AC_DEFUN([MCA_opal_hwloc_CONFIG_REQUIRE],[
     # REQUIRE.
     MCA_CONFIGURE_FRAMEWORK([opal], [hwloc], 1)
 
+    # Strip any leading/trailing spaces
+    opal_hwloc_winner=`echo $MCA_opal_hwloc_STATIC_COMPONENTS | sed -e 's/^[ ]+//' | sed -e 's/[ ]+$//'`
+
     # Give a blank line to separate these messages from the last
     # component's configure.m4 output.
     echo " "
@@ -76,6 +86,14 @@ AC_DEFUN([MCA_opal_hwloc_CONFIG_REQUIRE],[
         AS_IF([test "$MCA_opal_hwloc_STATIC_COMPONENTS" = ""],
               [AC_MSG_WARN([Did not find a suitable static opal hwloc component])
                AC_MSG_ERROR([Cannot continue])])
+
+        # If there's any spaces in the middle of the string, then we
+        # found more than 1 eligible static component.  That's no good
+        # (and should never happen, but let's be sure)!
+        AS_IF([test "`echo $opal_hwloc_winner | sed 's/ //'`" != "$opal_hwloc_winner"],
+              [AC_MSG_WARN([Found more than 1 eligible static opal hwloc component])
+               AC_MSG_WARN([This should never happen!])
+               AC_MSG_ERROR([Cannot continue])])
    ])
 
    # If we have a winning component, do some more logic
@@ -83,37 +101,51 @@ AC_DEFUN([MCA_opal_hwloc_CONFIG_REQUIRE],[
        [ # We had a winner -- w00t!
         OPAL_HAVE_HWLOC=1
 
-        # The winning component will have set this.
+        # The winning component will have told us where their header file
-        AS_IF([test "$hwloc_base_include" = ""],
+        # is located
-              [AC_MSG_WARN([Missing implementation header])
+        AC_MSG_CHECKING([for winning hwloc component header file])
+        eval "opal_hwloc_base_include=\`echo \$opal_hwloc_${opal_hwloc_winner}_include\`"
+        AS_IF([test "$opal_hwloc_base_include" = ""],
+              [AC_MSG_RESULT([missing])
+               AC_MSG_WARN([Missing implementation header])
                AC_MSG_ERROR([Cannot continue])])
+        AC_MSG_RESULT([$opal_hwloc_base_include])
 
         AC_DEFINE_UNQUOTED([MCA_hwloc_IMPLEMENTATION_HEADER],
-                           ["$hwloc_base_include"],
+                           ["$opal_hwloc_base_include"],
                            [Header to include for hwloc implementation])
 
         # See if they set any flags for us
         AC_MSG_CHECKING([for winning hwloc component additional CPPFLAGS])
-        AS_IF([test "$hwloc_base_cppflags" != ""],
+        eval "opal_hwloc_base_cppflags=\`echo \$opal_hwloc_${opal_hwloc_winner}_cppflags\`"
-              [AC_MSG_RESULT([$hwloc_base_cppflags])
+        AS_IF([test "$opal_hwloc_base_cppflags" != ""],
-               CPPFLAGS="$CPPFLAGS $hwloc_base_cppflags"],
+              [AC_MSG_RESULT([$opal_hwloc_base_cppflags])
+               CPPFLAGS="$CPPFLAGS $opal_hwloc_base_cppflags"],
               [AC_MSG_RESULT([none])])
         AC_MSG_CHECKING([for winning hwloc component additional LDFLAGS])
-        AS_IF([test "$hwloc_base_ldflags" != ""],
+        eval "opal_hwloc_base_ldflags=\`echo \$opal_hwloc_${opal_hwloc_winner}_ldflags\`"
-              [AC_MSG_RESULT([$hwloc_base_ldflags])
+        AS_IF([test "$opal_hwloc_base_ldflags" != ""],
-               LDFLAGS="$LDFLAGS $hwloc_base_ldflags"],
+              [AC_MSG_RESULT([$opal_hwloc_base_ldflags])
+               LDFLAGS="$LDFLAGS $opal_hwloc_base_ldflags"],
               [AC_MSG_RESULT([none])])
         AC_MSG_CHECKING([for winning hwloc component additional LIBS])
-        AS_IF([test "$hwloc_base_libs" != ""],
+        eval "opal_hwloc_base_libs=\`echo \$opal_hwloc_${opal_hwloc_winner}_libs\`"
-              [AC_MSG_RESULT([$hwloc_base_libs])
+        AS_IF([test "$opal_hwloc_base_libs" != ""],
-               LIB="$LIBS $hwloc_base_libs"],
+              [AC_MSG_RESULT([$opal_hwloc_base_libs])
+               LIB="$LIBS $opal_hwloc_base_libs"],
               [AC_MSG_RESULT([none])])
+
+        AC_MSG_CHECKING([if winning hwloc supports XML])
+        eval "opal_hwloc_base_enable_xml=\`echo \$opal_hwloc_${opal_hwloc_winner}_enable_xml\`"
+        AS_IF([test "$opal_hwloc_base_enable_xml" = "1"],
+              [AC_MSG_RESULT([yes])],
+              [AC_MSG_RESULT([no])])
     ])
 
     AM_CONDITIONAL(OPAL_HAVE_HWLOC, test $OPAL_HAVE_HWLOC -eq 1)
     AC_DEFINE_UNQUOTED(OPAL_HAVE_HWLOC, $OPAL_HAVE_HWLOC,
         [Whether we have hwloc support or not])
-    AC_DEFINE_UNQUOTED(OPAL_HAVE_HWLOC_XML, $hwloc_base_enable_xml,
+    AC_DEFINE_UNQUOTED(OPAL_HAVE_HWLOC_XML, $opal_hwloc_base_enable_xml,
         [Enable xml support or not])
 
    # Similar to above, if this m4 is being invoked "early" via AC

opal/mca/hwloc/external/configure.m4

@@ -36,7 +36,7 @@ AC_DEFUN([MCA_opal_hwloc_external_POST_CONFIG],[
 AC_DEFUN([MCA_opal_hwloc_external_CONFIG],[
     AC_CONFIG_FILES([opal/mca/hwloc/external/Makefile])
 
-    OPAL_VAR_SCOPE_PUSH([opal_hwloc_external_CPPFLAGS_save opal_hwloc_external_CFLAGS_save opal_hwloc_external_LDFLAGS_save opal_hwloc_external_LIBS_save opal_hwloc_external_want])
+    OPAL_VAR_SCOPE_PUSH([opal_hwloc_external_CPPFLAGS_save opal_hwloc_external_CFLAGS_save opal_hwloc_external_LDFLAGS_save opal_hwloc_external_LIBS_save opal_hwloc_external_want opal_hwloc_external_tmp opal_hwloc_external_lstopo])
 
     AC_ARG_WITH([hwloc-libdir],
        [AC_HELP_STRING([--with-hwloc-libdir=DIR],
@@ -85,7 +85,7 @@ AC_DEFUN([MCA_opal_hwloc_external_CONFIG],[
                               [opal_hwloc_external_support=yes],
                               [opal_hwloc_external_support=no])
 
-           CPPFLAGS=$opal_hwloc_external_CPPFLAGS_save
+           CPPFLAGS=$opal_hwloc_external_CPPFLAGS_savew
            CFLAGS=$opal_hwloc_external_CFLAGS_save
            LDFLAGS=$opal_hwloc_external_LDFLAGS_save
            LIBS=$opal_hwloc_external_LIBS_save
@@ -96,10 +96,25 @@ AC_DEFUN([MCA_opal_hwloc_external_CONFIG],[
           [AC_DEFINE_UNQUOTED([HWLOC_EXTERNAL_HWLOC_VERSION], 
                               [external], 
                               [Version of hwloc])
+
+           # See if the external hwloc supports XML
+           AC_MSG_CHECKING([if external hwloc supports XML])
+           AS_IF([test "$opal_hwloc_dir" != ""],
+                 [opal_hwloc_external_lstopo="$opal_hwloc_dir/bin/lstopo"],
+                 [OPAL_WHICH(lstopo, opal_hwloc_external_lstopo)])
+           opal_hwloc_external_tmp=`$opal_hwloc_external_lstopo --help | $GREP "Supported output file formats" | grep xml`
+           AS_IF([test "$opal_hwloc_external_tmp" = ""],
+                 [opal_hwloc_external_enable_xml=0
+                  AC_MSG_RESULT([no])],
+                 [opal_hwloc_external_enable_xml=1
+                  AC_MSG_RESULT([yes])])
+
            # Must set this variable so that the framework m4 knows
            # what file to include in opal/mca/hwloc/hwloc.h
-           hwloc_base_include="$opal_hwloc_dir/include/hwloc.h"
+           opal_hwloc_external_include="$opal_hwloc_dir/include/hwloc.h"
-           hwloc_base_cppflags=$opal_hwloc_external_CPPFLAGS
+           opal_hwloc_external_cppflags=$opal_hwloc_external_CPPFLAGS
+           opal_hwloc_external_ldflags=$opal_hwloc_external_LDFLAGS
+           opal_hwloc_external_libs=$opal_hwloc_external_LIBS
 
            # These flags need to get passed to the wrapper compilers
            # (this is unnecessary for the internal/embedded hwloc)

opal/mca/hwloc/external/hwloc_external_component.c

@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2011      Cisco Systems, Inc.  All rights reserved. 
+ *
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
 #include "opal_config.h"
 #include "opal/constants.h"
 
@@ -30,7 +40,7 @@ const opal_hwloc_component_t mca_hwloc_external_component = {
         OPAL_HWLOC_BASE_VERSION_2_0_0,
 
         /* Component name and version */
-        "hwloc_external",
+        "external",
         OPAL_MAJOR_VERSION,
         OPAL_MINOR_VERSION,
         OPAL_RELEASE_VERSION,

opal/mca/hwloc/hwloc121/configure.m4

@@ -68,10 +68,10 @@ AC_DEFUN([MCA_opal_hwloc_hwloc121_CONFIG],[
                 [enable xml support for hwloc (experimental)]))
         if test "$enable_hwloc_xml" = "yes"; then
             enable_xml=yes
-            hwloc_base_enable_xml=1
+            opal_hwloc_hwloc121_enable_xml=1
         else
             enable_xml=no
-            hwloc_base_enable_xml=0
+            opal_hwloc_hwloc121_enable_xml=0
         fi
 
         HWLOC_SETUP_CORE([opal/mca/hwloc/hwloc121/hwloc], 
@@ -115,7 +115,7 @@ AC_DEFUN([MCA_opal_hwloc_hwloc121_CONFIG],[
 
            # Set these variables so that the framework m4 knows
            # what file to include in opal/mca/hwloc/hwloc.h
-           hwloc_base_include="$opal_hwloc_hwloc121_basedir/hwloc121.h"
+           opal_hwloc_hwloc121_include="$opal_hwloc_hwloc121_basedir/hwloc121.h"
 
            # We also set _cppflags so that when including
            # opal/mca/hwloc/hwloc.h (and therefore this component's
@@ -123,9 +123,9 @@ AC_DEFUN([MCA_opal_hwloc_hwloc121_CONFIG],[
            # files.  Be a little friendly and only include the -I for
            # the builddir if it's different than the srcdir.
            opal_hwloc_hwloc121_file=$opal_hwloc_hwloc121_basedir/hwloc
-           hwloc_base_cppflags="-I$OMPI_TOP_SRCDIR/$opal_hwloc_hwloc121_file/include"
+           opal_hwloc_hwloc121_cppflags="-I$OMPI_TOP_SRCDIR/$opal_hwloc_hwloc121_file/include"
            AS_IF([test "$OMPI_TOP_BUILDDIR" != "$OMPI_TOP_SRCDIR"],
-                 [hwloc_base_cppflags="$hwloc_base_cppflags -I$OMPI_TOP_BUILDDIR/$opal_hwloc_hwloc121_file/include"])
+                 [opal_hwloc_hwloc121_cppflags="$opal_hwloc_hwloc121_cppflags -I$OMPI_TOP_BUILDDIR/$opal_hwloc_hwloc121_file/include"])
            if test "$with_devel_headers" = "yes" ; then
                hwloc_hwloc121_WRAPPER_EXTRA_CPPFLAGS="$WRAPPER_EXTRA_CPPFLAGS "'-I${includedir}/openmpi/'"$opal_hwloc_hwloc121_basedir/hwloc/include"
            fi