openmpi/config/ompi_check_func_lib.m4

dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2005 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) 2004-2005 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 $COPYRIGHT$
dnl 
dnl Additional copyrights may follow
dnl 
dnl $HEADER$
dnl

# OMPI_CHECK_FUNC_LIB(func, lib, [action-if-found], [action-if-not-found])
# ------------------------------
# Try to find function func, first with the present LIBS, second with
# lib added to LIBS.  If func is found with the libraries listed in
# LIBS, no modification to LIBS is made.  If func is in lib (but not
# in LIBS) then lib is added to LIBS.  If func is not in lib, then
# LIBS is not modified.
AC_DEFUN([OMPI_CHECK_FUNC_LIB],[
    AS_VAR_PUSHDEF([ompi_var], [ompi_cv_func_lib_$1_$2])dnl
    AC_CACHE_CHECK([if we need -l$2 for $1],
        ompi_var,
        [AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],
            [AS_VAR_SET(ompi_var, "no")],
            [LIBS_save="$LIBS"
             LIBS="$LIBS -l$2"
             AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],
                 [AS_VAR_SET(ompi_var, "yes")],
                 [AS_VAR_SET(ompi_var, "not found")])
             LIBS="$LIBS_save"])])
    AS_IF([test "AS_VAR_GET(ompi_var)" = "yes"],
          [LIBS="$LIBS -l$2"])

    # see if we actually have $1.  Use AC_CHECK_FUNCS so that it
    # does the glibc "not implemented" check.  Will use the current LIBS,
    # so will check in -l$2 if we decided we needed it above
    AC_CHECK_FUNCS([$1], $3, $4)
    AS_VAR_POPDEF([ompi_var])dnl
])
- add -lgen if it's needed to get dirname() - since we now have three places where we need to add a -l<foo> if and only if it isn't already in something in LIBS that provides symbol bar... This commit was SVN r8370. 2005-12-02 04:02:19 +03:00			`dnl -- shell-script --`
			`dnl`
			`dnl Copyright (c) 2004-2005 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) 2004-2005 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 $COPYRIGHT$`
			`dnl`
			`dnl Additional copyrights may follow`
			`dnl`
			`dnl $HEADER$`
			`dnl`

* Make the backtrace printing functionality a framework * Copy Linux and Solaris backtrace support from util/stacktrace.c * Added backtrace support for Mac OS X. This commit was SVN r11023. 2006-07-27 06:56:02 +04:00			`# OMPI_CHECK_FUNC_LIB(func, lib, [action-if-found], [action-if-not-found])`
- add -lgen if it's needed to get dirname() - since we now have three places where we need to add a -l<foo> if and only if it isn't already in something in LIBS that provides symbol bar... This commit was SVN r8370. 2005-12-02 04:02:19 +03:00			`# ------------------------------`
			`# Try to find function func, first with the present LIBS, second with`
			`# lib added to LIBS. If func is found with the libraries listed in`
			`# LIBS, no modification to LIBS is made. If func is in lib (but not`
			`# in LIBS) then lib is added to LIBS. If func is not in lib, then`
			`# LIBS is not modified.`
			`AC_DEFUN([OMPI_CHECK_FUNC_LIB],[`
* don't declare functions being checked as extern char * - that's not a function and causes problems with false negatives on some linux distros. Instead, use the test code used by AC_CHECK_FUNC. This commit was SVN r8592. 2005-12-22 17:26:24 +03:00			`AS_VAR_PUSHDEF([ompi_var], [ompi_cv_func_lib_$1_$2])dnl`
			`AC_CACHE_CHECK([if we need -l$2 for $1],`
			`ompi_var,`
			`[AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],`
			`[AS_VAR_SET(ompi_var, "no")],`
			`[LIBS_save="$LIBS"`
			`LIBS="$LIBS -l$2"`
			`AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],`
			`[AS_VAR_SET(ompi_var, "yes")],`
			`[AS_VAR_SET(ompi_var, "not found")])`
			`LIBS="$LIBS_save"])])`
			`AS_IF([test "AS_VAR_GET(ompi_var)" = "yes"],`
* Merge of wrapper compiler updates from the bwb-wrapper-fix branch (r8690 - r8698), with changes below: - Split wrapper flags into those required for each of the three projects, and cleaned up some cruft (including the LIBMPI_EXTRA_*FLAGS) through- out the build system - Added opal_init_util and opal_finalize_util to allow init / cleanup of all the opal code that doesn't require the MCA system - Create standalone key=value file parser, based on the one that used to be in the mca param parser, so that it can be shared in multiple places - Add wrapper datafiles for opal, orte, and ompi wrappers, and add wrapper compiler with support for all the old features This commit was SVN r8699. The following SVN revisions from the original message are invalid or inconsistent and therefore were not cross-referenced: r8690 r8698 2006-01-16 04:48:03 +03:00			`[LIBS="$LIBS -l$2"])`
- add -lgen if it's needed to get dirname() - since we now have three places where we need to add a -l<foo> if and only if it isn't already in something in LIBS that provides symbol bar... This commit was SVN r8370. 2005-12-02 04:02:19 +03:00
			`# see if we actually have $1. Use AC_CHECK_FUNCS so that it`
* don't declare functions being checked as extern char * - that's not a function and causes problems with false negatives on some linux distros. Instead, use the test code used by AC_CHECK_FUNC. This commit was SVN r8592. 2005-12-22 17:26:24 +03:00			`# does the glibc "not implemented" check. Will use the current LIBS,`
- add -lgen if it's needed to get dirname() - since we now have three places where we need to add a -l<foo> if and only if it isn't already in something in LIBS that provides symbol bar... This commit was SVN r8370. 2005-12-02 04:02:19 +03:00			`# so will check in -l$2 if we decided we needed it above`
* Make the backtrace printing functionality a framework * Copy Linux and Solaris backtrace support from util/stacktrace.c * Added backtrace support for Mac OS X. This commit was SVN r11023. 2006-07-27 06:56:02 +04:00			`AC_CHECK_FUNCS([$1], $3, $4)`
* don't declare functions being checked as extern char * - that's not a function and causes problems with false negatives on some linux distros. Instead, use the test code used by AC_CHECK_FUNC. This commit was SVN r8592. 2005-12-22 17:26:24 +03:00			`AS_VAR_POPDEF([ompi_var])dnl`
- add -lgen if it's needed to get dirname() - since we now have three places where we need to add a -l<foo> if and only if it isn't already in something in LIBS that provides symbol bar... This commit was SVN r8370. 2005-12-02 04:02:19 +03:00			`])`