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274 lines
10 KiB
274 lines
10 KiB
# <<< smr.m4 from smr_macros 0.2.4 >>>
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dnl ####################### -*- Mode: M4 -*- ###########################
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dnl smr.m4 --
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dnl
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dnl Copyright (C) 1999 Matthew D. Langston <langston@SLAC.Stanford.EDU>
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dnl Copyright (C) 1998 Steve Robbins <stever@cs.mcgill.ca>
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dnl
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dnl This file is free software; you can redistribute it and/or modify it
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dnl under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 2 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This file is distributed in the hope that it will be useful, but
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dnl WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this file; if not, write to:
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dnl
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dnl Free Software Foundation, Inc.
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dnl Suite 330
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dnl 59 Temple Place
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dnl Boston, MA 02111-1307, USA.
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dnl ####################################################################
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dnl NOTE: The macros in this file are extensively documented in the
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dnl accompanying `smr_macros.texi' Texinfo file. Please see the
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dnl Texinfo documentation for the definitive specification of how
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dnl these macros are supposed to work. If the macros work
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dnl differently than the Texinfo documentation says they should,
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dnl then the macros (and not the Texinfo documentation) has the
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dnl bug(s).
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dnl This is a convenient macro which translates illegal characters for
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dnl bourne shell variables into legal characters. It has the same
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dnl functionality as sed 'y%./+-:%__p__%'.
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AC_DEFUN([smr_safe_translation], [patsubst(patsubst([$1], [+], [p]), [./-:], [_])])
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AC_DEFUN(smr_SWITCH,
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[
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dnl Define convenient aliases for the arguments since there are so
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dnl many of them and I keep confusing myself whenever I have to edit
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dnl this macro.
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pushdef([smr_name], $1)
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pushdef([smr_help_string], $2)
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pushdef([smr_default], $3)
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pushdef([smr_yes_define], $4)
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pushdef([smr_no_define], $5)
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dnl Do some sanity checking of the arguments.
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ifelse([regexp(smr_default, [^\(yes\|no\)$])], -1, [AC_MSG_ERROR($0: third arg must be either yes or no)])
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dnl Create the help string
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pushdef([smr_lhs], [--ifelse(smr_default, yes, disable, enable)-smr_name])dnl
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pushdef([smr_rhs], [ifelse(smr_default, yes, disable, enable) smr_help_string (default is smr_default)])dnl
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dnl Add the option to `configure --help'. We don't need to supply the
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dnl 4th argument to AC_ARG_ENABLE (i.e. the code to set the default
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dnl value) because that is done below by AC_CACHE_CHECK.
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AC_ARG_ENABLE([smr_name],
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AC_HELP_STRING([smr_lhs], [smr_rhs]),
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smr_cv_enable_[]smr_name=$enableval)
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dnl We cache the result so that the user doesn't have to remember
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dnl which flags they passed to `configure'.
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AC_CACHE_CHECK([whether to enable smr_help_string],
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smr_cv_enable_[]smr_name,
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smr_cv_enable_[]smr_name=smr_default)
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ifelse(smr_yes_define, , , test x"[$]smr_cv_enable_[]smr_name" = xyes && AC_DEFINE(smr_yes_define))
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ifelse(smr_no_define, , , test x"[$]smr_cv_enable_[]smr_name" = xno && AC_DEFINE(smr_no_define))
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dnl Sanity check the value assigned to smr_cv_enable_$1 to force it to
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dnl be either `yes' or `no'.
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if test ! x"[$]smr_cv_enable_[]smr_name" = xyes; then
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if test ! x"[$]smr_cv_enable_[]smr_name" = xno; then
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AC_MSG_ERROR([smr_lhs must be either yes or no])
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fi
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fi
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popdef([smr_name])
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popdef([smr_help_string])
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popdef([smr_default])
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popdef([smr_yes_define])
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popdef([smr_no_define])
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popdef([smr_lhs])
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popdef([smr_rhs])
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])
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AC_DEFUN(smr_ARG_WITHLIB,
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[
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dnl Define convenient aliases for the arguments since there are so
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dnl many of them and I keep confusing myself whenever I have to edit
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dnl this macro.
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pushdef([smr_name], $1)
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pushdef([smr_libname], ifelse($2, , smr_name, $2))
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pushdef([smr_help_string], $3)
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pushdef([smr_safe_name], smr_safe_translation(smr_name))
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dnl Add the option to `configure --help'. We don't need to supply the
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dnl 4th argument to AC_ARG_WITH (i.e. the code to set the default
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dnl value) because that is done below by AC_CACHE_CHECK.
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AC_ARG_WITH(smr_safe_name-library,
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AC_HELP_STRING([--with-smr_safe_name-library[[=PATH]]],
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[use smr_name library ifelse(smr_help_string, , , (smr_help_string))]),
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smr_cv_with_[]smr_safe_name[]_library=$withval)
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dnl We cache the result so that the user doesn't have to remember
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dnl which flags they passed to `configure'.
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AC_CACHE_CHECK([whether to use smr_name library],
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smr_cv_with_[]smr_safe_name[]_library,
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smr_cv_with_[]smr_safe_name[]_library=maybe)
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case x"[$]smr_cv_with_[]smr_safe_name[]_library" in
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xyes | xmaybe)
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smr_safe_name[]_LIBS="-l[]smr_libname"
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with_[]smr_safe_name=[$]smr_cv_with_[]smr_safe_name[]_library
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;;
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xno)
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smr_safe_name[]_LIBS=
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with_[]smr_safe_name=no
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;;
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*)
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if test -f "[$]smr_cv_with_[]smr_safe_name[]_library"; then
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smr_safe_name[]_LIBS=[$]smr_cv_with_[]smr_safe_name[]_library
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elif test -d "[$]smr_cv_with_[]smr_safe_name[]_library"; then
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smr_safe_name[]_LIBS="-L[$]smr_cv_with_[]smr_safe_name[]_library -l[]smr_libname"
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else
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AC_MSG_ERROR([argument must be boolean, file, or directory])
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fi
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with_[]smr_safe_name=yes
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;;
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esac
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popdef([smr_name])
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popdef([smr_libname])
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popdef([smr_help_string])
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popdef([smr_safe_name])
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])
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AC_DEFUN(smr_ARG_WITHINCLUDES,
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[
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dnl Define convenient aliases for the arguments since there are so
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dnl many of them and I keep confusing myself whenever I have to edit
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dnl this macro.
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pushdef([smr_name], $1)
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pushdef([smr_header], $2)
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pushdef([smr_extra_flags], $3)
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pushdef([smr_safe_name], smr_safe_translation(smr_name))
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dnl Add the option to `configure --help'. We don't need to supply the
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dnl 4th argument to AC_ARG_WITH (i.e. the code to set the default
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dnl value) because that is done below by AC_CACHE_CHECK.
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AC_ARG_WITH(smr_safe_name-includes,
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AC_HELP_STRING([--with-smr_safe_name-includes[[=DIR]]],
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[set directory for smr_name headers]),
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smr_cv_with_[]smr_safe_name[]_includes=$withval)
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dnl We cache the result so that the user doesn't have to remember
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dnl which flags they passed to `configure'.
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AC_CACHE_CHECK([where to find the smr_name header files],
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smr_cv_with_[]smr_safe_name[]_includes,
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smr_cv_with_[]smr_safe_name[]_includes=)
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if test ! x"[$]smr_cv_with_[]smr_safe_name[]_includes" = x; then
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if test -d "[$]smr_cv_with_[]smr_safe_name[]_includes"; then
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smr_safe_name[]_CFLAGS="-I[$]smr_cv_with_[]smr_safe_name[]_includes"
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else
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AC_MSG_ERROR([argument must be a directory])
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fi
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else
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smr_safe_name[]_CFLAGS=
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fi
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dnl This bit of logic comes from the autoconf AC_PROG_CC macro. We
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dnl need to put the given include directory into CPPFLAGS temporarily,
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dnl but then restore CPPFLAGS to its old value.
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smr_test_CPPFLAGS="${CPPFLAGS+set}"
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smr_save_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS [$]smr_safe_name[]_CFLAGS smr_extra_flags"
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dnl If the header file smr_header exists, then define
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dnl HAVE_[]smr_header (in all capitals).
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AC_CHECK_HEADERS([smr_header],
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smr_have_[]smr_safe_name[]_header=yes,
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smr_have_[]smr_safe_name[]_header=no)
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if test x"$smr_test_CPPFLAGS" = xset; then
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CPPFLAGS=$smr_save_CPPFLAGS
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else
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unset CPPFLAGS
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fi
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popdef([smr_name])
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popdef([smr_header])
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popdef([smr_extra_flags])
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popdef([smr_safe_name])
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])
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AC_DEFUN(smr_CHECK_LIB,
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[
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dnl Define convenient aliases for the arguments since there are so
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dnl many of them and I keep confusing myself whenever I have to edit
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dnl this macro.
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pushdef([smr_name], $1)
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pushdef([smr_libname], ifelse($2, , smr_name, $2))
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pushdef([smr_help_string], $3)
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pushdef([smr_function], $4)
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pushdef([smr_header], $5)
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pushdef([smr_extra_libs], $6)
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pushdef([smr_extra_flags], $7)
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pushdef([smr_prototype], $8)
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pushdef([smr_safe_name], smr_safe_translation(smr_name))
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dnl Give the user (via "configure --help") an interface to specify
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dnl whether we should use the library or not, and possibly where we
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dnl should find it.
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smr_ARG_WITHLIB([smr_name], [smr_libname], [smr_help_string])
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if test ! x"$with_[]smr_safe_name" = xno; then
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# If we got this far, then the user didn't explicitly ask not to use
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# the library.
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dnl If the caller of smr_CHECK_LIB specified a header file for this
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dnl library, then give the user (via "configure --help") an
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dnl interface to specify where this header file can be found (if it
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dnl isn't found by the compiler by default).
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ifelse(smr_header, , , [smr_ARG_WITHINCLUDES(smr_name, smr_header, smr_extra_flags)])
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# We need only look for the library if the header has been found
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# (or no header is needed).
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if test [$]smr_have_[]smr_safe_name[]_header != no; then
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AC_CHECK_LIB(smr_libname,
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smr_function,
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smr_have_[]smr_safe_name[]_library=yes,
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smr_have_[]smr_safe_name[]_library=no,
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[$]smr_safe_name[]_CFLAGS [smr_extra_flags] [$]smr_safe_name[]_LIBS [smr_extra_libs],
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[ifelse(smr_prototype, , , [[#]include <smr_header>])],
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smr_prototype)
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fi
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if test x"[$]smr_have_[]smr_safe_name[]_library" = xyes; then
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AC_MSG_RESULT([using smr_name library])
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else
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smr_safe_name[]_LIBS=
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smr_safe_name[]_CFLAGS=
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if test x"$with_[]smr_safe_name" = xmaybe; then
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AC_MSG_RESULT([not using smr_name library])
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else
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AC_MSG_WARN([requested smr_name library not found!])
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fi
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fi
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fi
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popdef([smr_name])
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popdef([smr_libname])
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popdef([smr_help_string])
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popdef([smr_function])
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popdef([smr_header])
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popdef([smr_extra_libs])
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popdef([smr_extra_flags])
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popdef([smr_prototype])
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popdef([smr_safe_name])
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])
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