dnl dnl Copyright (c) 2004-2009 The Trustees of Indiana University and Indiana dnl University Research and Technology dnl Corporation. All rights reserved. dnl Copyright (c) 2004-2005 The University of Tennessee and The University dnl of Tennessee Research Foundation. All rights dnl reserved. dnl Copyright (c) 2004-2007 High Performance Computing Center Stuttgart, dnl University of Stuttgart. All rights reserved. dnl Copyright (c) 2004-2005 The Regents of the University of California. dnl All rights reserved. dnl Copyright (c) 2006-2013 Cisco Systems, Inc. All rights reserved. dnl Copyright (c) 2006-2008 Sun Microsystems, Inc. All rights reserved. dnl Copyright (c) 2006-2007 Los Alamos National Security, LLC. All rights dnl reserved. dnl Copyright (c) 2009 Oak Ridge National Labs. All rights reserved. dnl $COPYRIGHT$ dnl dnl Additional copyrights may follow dnl dnl $HEADER$ dnl AC_DEFUN([OPAL_SETUP_LIBLTDL],[ OPAL_VAR_SCOPE_PUSH([HAPPY]) ompi_show_subtitle "GNU libltdl setup" # AC_CONFIG_SUBDIRS appears to be broken for non-gcc compilers (i.e., # passing precious variables down to the sub-configure). # # Finally, make ltdl follow the same shared/static convention that was # user for the main OMPI libraries. So manually examine # $enable_shared and $enable_static and pass down the corresponding # flags. LIBLTDL_SUBDIR= OPAL_HAVE_LTDL_ADVISE=0 OPAL_LIBLTDL_INTERNAL=0 AS_IF([test "$OPAL_ENABLE_DLOPEN_SUPPORT" = "0"], [AC_MSG_WARN([libltdl support disabled (by --disable-dlopen)]) LIBLTDL= LDTLINCL= OPAL_WRAPPER_FLAGS_ADD(LIBS, "$LIBS")], [ # Default to building the internal copy. After this, # paffinity_hwloc_location is guaranteed to be set to one of: # "internal", a directory name (i.e., whatever the user # supplied), or "no". libltdl_location=$with_libltdl AS_IF([test -z "$libltdl_location" -o "$libltdl_location" = "yes"], [libltdl_location=internal]) AC_MSG_CHECKING([location of libltdl]) case $libltdl_location in no) AC_MSG_WARN([--without-libltdl specified in conjunction with]) AC_MSG_WARN([--enable-dlopen (or --disable-dlopen was not specified)]) AC_MSG_WARN([Cannot have dlopen without libltdl]) AC_MSG_ERROR([Cannot continue]) ;; internal) AC_MSG_RESULT([internal copy]) _OPAL_SETUP_LIBLTDL_INTERNAL ;; external) AC_MSG_RESULT([external copy (unspecified)]) # If we're using an extern libltdl, then reset the # LTDLINCL that was set earlier (ie., there's no need to # -I into our internal libltdl tree). LIBLTDL= LDTLINCL= libltdl_location= libltdl_need_external=1 ;; *) AC_MSG_RESULT([external copy ($libltdl_location)]) OMPI_CHECK_WITHDIR([libltdl], [$libltdl_location], [include/ltdl.h]) # If we're using an extern libltdl, then reset the # LTDLINCL that was set earlier (ie., there's no need to # -I into our internal libltdl tree). LIBLTDL= LDTLINCL= libltdl_need_external=1 ;; esac AS_IF([test "$libltdl_need_external" = "1"], [OMPI_CHECK_PACKAGE([libltdl], [ltdl.h], [ltdl], [lt_dlopen], [], [$libltdl_location], [], [], [AC_MSG_WARN([External libltdl installation not found]) AC_MSG_WARN([or not usable.]) AC_MSG_ERROR([Cannot continue.])]) CPPFLAGS="$CPPFLAGS $libltdl_CPPFLAGS" LDFLAGS="$LDFLAGS $libltdl_LDFLAGS" LIBS="$LIBS $libltdl_LIBS" # Check for lt_dladvise_init; warn if we don't have # it AC_CHECK_FUNC([lt_dladvise_init], [OPAL_HAVE_LTDL_ADVISE=1], [AC_MSG_WARN([*********************************************]) AC_MSG_WARN([Could not find lt_dladvise_init in the]) AC_MSG_WARN([external libltdl installation.]) AC_MSG_WARN([This could mean that your libltdl version]) AC_MSG_WARN([is old. We recommend that you re-configure]) AC_MSG_WARN([Open MPI with --with-libltdl=internal to]) AC_MSG_WARN([use the internal libltdl copy in Open MPI.]) AC_MSG_WARN([]) AC_MSG_WARN([Sleeping 10 seconds to give you a]) AC_MSG_WARN([chance to read this message.]) AC_MSG_WARN([*********************************************]) sleep 10 ]) ]) ]) AC_SUBST(LTDLINCL) AC_SUBST(LIBLTDL) AC_SUBST(LIBLTDL_SUBDIR) AC_DEFINE_UNQUOTED(OPAL_HAVE_LTDL_ADVISE, $OPAL_HAVE_LTDL_ADVISE, [Whether libltdl appears to have the lt_dladvise interface]) AC_DEFINE_UNQUOTED(OPAL_WANT_LIBLTDL, $OPAL_ENABLE_DLOPEN_SUPPORT, [Whether to include support for libltdl or not]) AC_DEFINE_UNQUOTED(OPAL_LIBLTDL_INTERNAL, $OPAL_LIBLTDL_INTERNAL, [Whether we are using the internal libltdl or not]) AM_CONDITIONAL(OPAL_HAVE_DLOPEN, [test "$OPAL_ENABLE_DLOPEN_SUPPORT" = "1"]) OPAL_VAR_SCOPE_POP([HAPPY]) ])dnl # # Setup to build the internal copy of libltdl # AC_DEFUN([_OPAL_SETUP_LIBLTDL_INTERNAL],[ OPAL_VAR_SCOPE_PUSH([CFLAGS_save CPPFLAGS_save]) ompi_subdir_args="$ompi_subdir_args --enable-ltdl-convenience --disable-ltdl-install" if test "$enable_shared" = "yes"; then ompi_subdir_args="$ompi_subdir_args --enable-shared" else ompi_subdir_args="$ompi_subdir_args --disable-shared" fi if test "$enable_static" = "yes"; then ompi_subdir_args="$ompi_subdir_args --enable-static" else ompi_subdir_args="$ompi_subdir_args --disable-static" fi CFLAGS_save="$CFLAGS" CFLAGS="$OMPI_CFLAGS_BEFORE_PICKY $OPAL_VISIBILITY_CFLAGS" # VPATH support will be included by default in CONFIG_SUBDIR OMPI_CONFIG_SUBDIR(opal/libltdl, [$ompi_subdir_args], [HAPPY=1], [HAPPY=0]) if test "$HAPPY" = "1"; then LIBLTDL_SUBDIR=libltdl OPAL_LIBLTDL_INTERNAL=1 CPPFLAGS_save="$CPPFLAGS" CPPFLAGS="-I." # Must specifically mention $srcdir here for VPATH builds # (this file is in the src tree). AC_EGREP_HEADER([lt_dladvise_init], [$srcdir/opal/libltdl/ltdl.h], [OPAL_HAVE_LTDL_ADVISE=1]) CPPFLAGS="$CPPFLAGS_save" # --export-dynamic allows exported symbols to be resolved via # --dlsym and friends. LDFLAGS="-export-dynamic $LDFLAGS" else AC_MSG_WARN([Failed to build GNU libltdl. This usually means that something]) AC_MSG_WARN([is incorrectly setup with your environment. There may be useful information in]) AC_MSG_WARN([opal/libltdl/config.log. You can also disable GNU libltdl, which will disable]) AC_MSG_WARN([dynamic shared object loading, by configuring with --disable-dlopen.]) AC_MSG_ERROR([Cannot continue]) fi CFLAGS="$CFLAGS_save" OPAL_VAR_SCOPE_POP ])dnl