78 строки
3.2 KiB
Plaintext
78 строки
3.2 KiB
Plaintext
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dnl -*- shell-script -*-
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dnl
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dnl Copyright (c) 2010-2015 Cisco Systems, Inc. All rights reserved.
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dnl $COPYRIGHT$
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dnl
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dnl Additional copyrights may follow
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dnl
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dnl $HEADER$
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dnl
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dnl There will only be one component used in this framework, and it will
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dnl be selected at configure time by priority. Components must set
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dnl their priorities in their configure.m4 file.
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dnl We only want one winning component (vs. STOP_AT_FIRST_PRIORITY,
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dnl which will allow all components of the same priority who succeed to
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dnl win)
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m4_define(MCA_opal_dl_CONFIGURE_MODE, STOP_AT_FIRST)
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AC_DEFUN([MCA_opal_dl_CONFIG],[
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OPAL_HAVE_DL_SUPPORT=0
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# If --disable-dlopen was used, then have all the components fail
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# (we still need to configure them all so that things like "make
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# dist" work", but we just want the MCA system to (artificially)
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# conclude that it can't build any of the components.
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AS_IF([test "$enable_dlopen" = "no"],
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[want_dl=0], [want_dl=1])
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MCA_CONFIGURE_FRAMEWORK([opal], [dl], [$want_dl])
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# If we found no suitable static dl component and dlopen support
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# was not specifically disabled, this is an error.
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AS_IF([test "$MCA_opal_dl_STATIC_COMPONENTS" = "" && \
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test "$enable_dlopen" != "no"],
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[AC_MSG_WARN([Did not find a suitable static opal dl component])
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AC_MSG_WARN([You might need to install libltld (and its headers) or])
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AC_MSG_WARN([specify --disable-dlopen to configure.])
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AC_MSG_ERROR([Cannot continue])])
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# If we have a winning component (which, per above, will only
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# happen if --disable-dlopen was *not* specified), do some more
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# logic.
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AS_IF([test "$MCA_opal_dl_STATIC_COMPONENTS" != ""],
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[ # We had a winner -- w00t!
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OPAL_HAVE_DL_SUPPORT=1
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# If we added any -L flags to ADD_LDFLAGS, then we (might)
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# need to add those directories to LD_LIBRARY_PATH.
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# Otherwise, if we try to AC RUN_IFELSE anything here in
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# configure, it might die because it can't find the libraries
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# we just linked against.
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OPAL_VAR_SCOPE_PUSH([opal_dl_base_found_l opal_dl_base_token opal_dl_base_tmp opal_dl_base_dir])
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opal_dl_base_found_l=0
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eval "opal_dl_base_tmp=\$opal_dl_${opal_dl_winner}_ADD_LIBS"
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for opal_dl_base_token in $opal_dl_base_tmp; do
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case $opal_dl_base_token in
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-l*) opal_dl_base_found_l=1 ;;
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esac
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done
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AS_IF([test $opal_dl_base_found_l -eq 1],
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[eval "opal_dl_base_tmp=\$opal_dl_${opal_dl_winner}_ADD_LDFLAGS"
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for opal_dl_base_token in $opal_dl_base_tmp; do
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case $opal_dl_base_token in
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-L*)
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opal_dl_base_dir=`echo $opal_dl_base_token | cut -c3-`
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export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$opal_dl_base_dir
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AC_MSG_WARN([Adding to LD_LIBRARY_PATH: $opal_dl_base_dir])
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;;
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esac
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done])
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OPAL_VAR_SCOPE_POP
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])
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AC_DEFINE_UNQUOTED([OPAL_HAVE_DL_SUPPORT], [$OPAL_HAVE_DL_SUPPORT],
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[Whether the OPAL DL framework is functional or not])
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])
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