###############################################################################

#                                                                             #

#   slibtool.m4: native slibtool integration for autoconf-based projects      #

#                                                                             #

#   Copyright (C) 2021  Z. Gilboa                                             #

#                                                                             #

#   Permission is hereby granted, free of charge, to any person obtaining     #

#   a copy of this software and associated documentation files (the           #

#   "Software"), to deal in the Software without restriction, including       #

#   without limitation the rights to use, copy, modify, merge, publish,       #

#   distribute, sublicense, and/or sell copies of the Software, and to        #

#   permit persons to whom the Software is furnished to do so, subject to     #

#   the following conditions:                                                 #

#                                                                             #

#   The above copyright notice and this permission notice shall be included   #

#   in all copies or substantial portions of the Software.                    #

#                                                                             #

#   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS   #

#   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF                #

#   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.    #

#   IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY      #

#   CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,      #

#   TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE         #

#   SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                    #

#                                                                             #

###############################################################################

# _SLIBTOOL_DEFAULTS

# ------------------

AC_DEFUN([_SLIBTOOL_DEFAULTS],[

AC_BEFORE([$0],[SLIBTOOL_INIT])

AC_BEFORE([$0],[_SLIBTOOL_ARGUMENT_HANDLING])

# slibtool: implementation defaults

# ---------------------------------

slibtool_enable_shared_default='yes'

slibtool_enable_static_default='yes'

slibtool_enable_dlopen_default='yes'

slibtool_enable_win32_dll_default='yes'

slibtool_enable_fast_install_default='yes'

slibtool_pic_mode_default='default'

slibtool_sysroot_default=

])

# _SLIBTOOL_ARGUMENT_HANDLING

# ---------------------------

AC_DEFUN([_SLIBTOOL_ARGUMENT_HANDLING],[

AC_BEFORE([$0],[_SLIBTOOL_ARG_ENABLE])

AC_BEFORE([$0],[_SLIBTOOL_ARG_WITH])

# slibtool: argument handling

# ---------------------------

slibtool_arg_enable()

{

	case "${enableval}" in

		'yes')

			slbt_eval_expr="${slbt_var}='yes'"

			eval $slbt_eval_expr

			;;

		'no')

			slbt_eval_expr="${slbt_var}='no'"

			eval $slbt_eval_expr

			;;

		*)

			slbt_package="${PACKAGE:-default}"

			slbt_eval_expr="${slbt_var}='no'"

			eval $slbt_eval_expr

			slbt_cfg_ifs="${IFS}"

			IFS="${PATH_SEPARATOR}${IFS}"

			for slbt_pkg in ${enableval}; do

				if [[ "_${slbt_pkg}" = "_${slbt_package}" ]]; then

					slbt_eval_expr="${slbt_var}='yes'"

					eval $slbt_eval_expr

				fi

			done

			IFS="${slbt_cfg_ifs}"

			unset slbt_cfg_ifs

			;;

	esac

}

slibtool_arg_with()

{

	case "${slbt_var}" in

		'slibtool_sysroot')

			case "${withval}" in

				'yes')

					slbt_eval_expr="${slbt_var}='yes'"

					eval $slbt_eval_expr

					;;

				'no')

					slbt_eval_expr="${slbt_var}='no'"

					eval $slbt_eval_expr

					;;

				*)

					slbt_eval_expr="${slbt_var}=${withval}"

					eval $slbt_eval_expr

					;;

			esac

			;;

		*)

			enableval="${withval}"

			slibtool_arg_enable

			;;

	esac

}

])

# _SLIBTOOL_ARG_ENABLE(_feature_,_help_string_,_var_)

# ---------------------------------------------------

AC_DEFUN([_SLIBTOOL_ARG_ENABLE],[

AC_ARG_ENABLE($1,

[AS_HELP_STRING([--enable-]$1[@<:@=PKGS@:>@],$2  @<:@default=[$]$3_default@:>@)],[

  slbt_var=$3

  slibtool_arg_enable],[dnl

$3=[$]$3_default])

])

# _SLIBTOOL_ARG_WITH(_feature_,_help_string_,_var_)

# -------------------------------------------------

AC_DEFUN([_SLIBTOOL_ARG_WITH],[

AC_ARG_WITH($1,

[AS_HELP_STRING([--with-]$1[@<:@=PKGS@:>@],$2  @<:@default=[$]$3_default@:>@)],[

  slbt_var=$3

  slibtool_arg_with],[dnl

$3=[$]$3_default])

])

# _SLIBTOOL_SET_FLAVOR

# --------------------

AC_DEFUN([_SLIBTOOL_SET_FLAVOR],[

AC_BEFORE([$0],[SLIBTOOL_INIT])

# slibtool: set SLIBTOOL to the default/package-default/user-requested flavor

# ---------------------------------------------------------------------------

slibtool_set_flavor()

{

	case "_${slibtool_enable_shared}_${slibtool_enable_static}" in

		'_yes_yes')

			SLIBTOOL='dlibtool'

			;;

		'_yes_no')

			SLIBTOOL='dlibtool-shared'

			;;

		'_no_yes')

			SLIBTOOL='dlibtool-static'

			;;

		'_no_no')

			SLIBTOOL='false'

			;;

		*)

			SLIBTOOL='false'

			slibtool_enable_shared='no'

			slibtool_enable_static='no'

			;;

	esac

	case "_${slibtool_sysroot}" in

		'_')

			;;

		'_yes'|'_no')

			slibtool_err_arg=[$with_sysroot]

			slibtool_err_msg='slibtool: the command-line --sysroot argument is always respected.'

			AC_MSG_RESULT([slibtool: --with-sysroot=$slibtool_err_arg])

			AC_MSG_ERROR([$slibtool_err_msg])

			;;

		_/*)

			SLIBTOOL_SYSROOT="--sysroot=${slibtool_sysroot}"

			SLIBTOOL="${SLIBTOOL} \$(SLIBTOOL_SYSROOT)"

			;;

		*)

			slibtool_err_arg=[$with_sysroot]

			slibtool_err_msg='slibtool: relative sysroot paths are not supported.'

			AC_MSG_RESULT([slibtool: --with-sysroot=$slibtool_err_arg])

			AC_MSG_ERROR([$slibtool_err_msg])

			;;

	esac

	# drop-in replacement

	enable_shared=${slibtool_enable_shared}

	enable_static=${slibtool_enable_static}

	enable_dlopen=${slibtool_enable_dlopen}

	enable_win32_dll=${slibtool_enable_win32_dll}

	enable_fast_install=${slibtool_enable_fast_install}

	pic_mode=${slibtool_pic_mode}

	# backward-compatible heuristics support

	printf "%s\n%s=%s\n%s=%s\n" \

		'#!/dev/null'        \

		'build_libtool_libs' "${slibtool_enable_shared}" \

		'build_old_libs'     "${slibtool_enable_static}"  \

		> libtool

}

])

# SLIBTOOL_ENABLE_SHARED

# ----------------------

AC_DEFUN([SLIBTOOL_ENABLE_SHARED],[

AC_BEFORE([$0],[SLIBTOOL_INIT])

# slibtool: SLIBTOOL_ENABLE_SHARED

# --------------------------------

slibtool_options="${slibtool_options:-}"

slibtool_options="${slibtool_options} shared"

])

# SLIBTOOL_ENABLE_STATIC

# ----------------------

AC_DEFUN([SLIBTOOL_ENABLE_STATIC],[

AC_BEFORE([$0],[SLIBTOOL_INIT])

# slibtool: SLIBTOOL_ENABLE_STATIC

# --------------------------------

slibtool_options="${slibtool_options:-}"

slibtool_options="${slibtool_options} static"

])

# SLIBTOOL_DISABLE_SHARED

# -----------------------

AC_DEFUN([SLIBTOOL_DISABLE_SHARED],[

AC_BEFORE([$0],[SLIBTOOL_INIT])

# slibtool: SLIBTOOL_DISABLE_SHARED

# ---------------------------------

slibtool_options="${slibtool_options:-}"

slibtool_options="${slibtool_options} disable-shared"

])

# SLIBTOOL_DISABLE_STATIC

# -----------------------

AC_DEFUN([SLIBTOOL_DISABLE_STATIC],[

AC_BEFORE([$0],[SLIBTOOL_INIT])

# slibtool: SLIBTOOL_DISABLE_STATIC

# ---------------------------------

slibtool_options="${slibtool_options:-}"

slibtool_options="${slibtool_options} disable-static"

])

# SLIBTOOL_PROG_NM

# ----------------

AC_DEFUN([SLIBTOOL_PROG_NM],[

# slibtool: SLIBTOOL_PROG_NM

# --------------------------

if [[ -z "${NM:-}" ]]; then

	NM="${RANLIB%ranlib}nm"

fi

AC_SUBST([NM])

])

# SLIBTOOL_INIT(_options_)

# ------------------------

AC_DEFUN([SLIBTOOL_INIT],[

AC_BEFORE([SLIBTOOL_LANG])

AC_REQUIRE([SLIBTOOL_PREREQ])

AC_REQUIRE([_SLIBTOOL_DEFAULTS])

AC_REQUIRE([_SLIBTOOL_SET_FLAVOR])

AC_REQUIRE([_SLIBTOOL_ARGUMENT_HANDLING])

# slibtool: package defaults

# ---------------------

slbt_cfg_ifs="${IFS}"

IFS="${PATH_SEPARATOR}${IFS}"

for slbt_opt in $@ ${slibtool_options:-}; do

	case "${slbt_opt}" in

		'shared')

			slibtool_enable_shared_default='yes'

			;;

		'disable-shared')

			slibtool_enable_shared_default='no'

			;;

		'static')

			slibtool_enable_static_default='yes'

			;;

		'disable-static')

			slibtool_enable_static_default='no'

			;;

		'dlopen')

			slibtool_enable_dlopen_default='yes'

			;;

		'disable-dlopen')

			slibtool_enable_dlopen_default='no'

			;;

		'win32-dll')

			slibtool_enable_win32_dll_default='yes'

			;;

		'disable-win32-dll')

			slibtool_enable_win32_dll_default='no'

			;;

		'fast-install')

			slibtool_enable_fast_install_default='yes'

			;;

		'disable-fast-install')

			slibtool_enable_fast_install_default='no'

			;;

		'pic-only')

			slibtool_pic_mode_default='yes'

			;;

		'no-pic')

			slibtool_pic_mode_default='no'

			;;

	esac

done

IFS="${slbt_cfg_ifs}"

unset slbt_cfg_ifs

# slibtool: features and argument handline

# ----------------------------------------

_SLIBTOOL_ARG_ENABLE([shared],[build shared libraries],[slibtool_enable_shared])

_SLIBTOOL_ARG_ENABLE([static],[build static libraries],[slibtool_enable_static])

_SLIBTOOL_ARG_ENABLE([dlopen],[allow -dlopen and -dlpreopen],[slibtool_enable_dlopen])

_SLIBTOOL_ARG_ENABLE([win32-dll],[natively support win32 dll's],[slibtool_enable_win32_dll])

_SLIBTOOL_ARG_ENABLE([fast-install],[optimize for fast installation],[slibtool_enable_fast_install])

_SLIBTOOL_ARG_WITH([pic],[override defaults for pic object usage],[slibtool_pic_mode])

_SLIBTOOL_ARG_WITH([sysroot],[absolute path to the target's sysroot],[slibtool_sysroot])

# slibtool: set flavor

# --------------------

slibtool_set_flavor

LIBTOOL='$(SLIBTOOL)'

AC_SUBST([LIBTOOL])

AC_SUBST([SLIBTOOL])

AC_SUBST([SLIBTOOL_SYSROOT])

m4_define([SLIBTOOL_INIT])

])

# SLIBTOOL_LANG(_language_)

# -------------------------

AC_DEFUN([SLIBTOOL_LANG],[

AC_REQUIRE([SLIBTOOL_PREREQ])

])

# SLIBTOOL_PREREQ(_version_)

# --------------------------

AC_DEFUN([SLIBTOOL_PREREQ],[

AC_REQUIRE([AC_PROG_CC])

AC_REQUIRE([AC_PROG_CPP])

AC_REQUIRE([AC_PROG_CXX])

AC_REQUIRE([AC_PROG_CXXCPP])

AC_REQUIRE([AC_PROG_OBJC])

AC_REQUIRE([AC_PROG_OBJCPP])

AC_REQUIRE([AC_PROG_OBJCXX])

AC_REQUIRE([AC_PROG_OBJCXXCPP])

AC_REQUIRE([AC_PROG_FC])

AC_REQUIRE([AC_PROG_F77])

AC_REQUIRE([AC_PROG_AWK])

AC_REQUIRE([AC_PROG_LEX])

AC_REQUIRE([AC_PROG_SED])

AC_REQUIRE([AC_PROG_YACC])

AC_REQUIRE([AC_PROG_RANLIB])

AC_REQUIRE([AC_PROG_LN_S])

AC_REQUIRE([AC_PROG_MKDIR_P])

AC_PROG_CC

AC_PROG_CPP

AC_PROG_CXX

AC_PROG_CXXCPP

AC_PROG_OBJC

AC_PROG_OBJCPP

AC_PROG_OBJCXX

AC_PROG_OBJCXXCPP

AC_PROG_FC

AC_PROG_F77

AC_PROG_AWK

AC_PROG_LEX

AC_PROG_SED

AC_PROG_YACC

AC_PROG_RANLIB

AC_PROG_NM

AC_PROG_LN_S

AC_PROG_MKDIR_P

])

# drop-in replacement

# -------------------

AC_DEFUN([LT_INIT],             [SLIBTOOL_INIT($@)])

AC_DEFUN([LT_LANG],             [SLIBTOOL_LANG($@)])

AC_DEFUN([LT_PREREQ],           [SLIBTOOL_PREREQ($@)])

AC_DEFUN([AC_PROG_LIBTOOL],     [SLIBTOOL_INIT($@)])

AC_DEFUN([AM_PROG_LIBTOOL],     [SLIBTOOL_INIT($@)])

AC_DEFUN([AC_PROG_NM],          [SLIBTOOL_PROG_NM($@)])

AC_DEFUN([AM_PROG_NM],          [SLIBTOOL_PROG_NM($@)])

AC_DEFUN([AC_ENABLE_SHARED],    [SLIBTOOL_ENABLE_SHARED($@)])

AC_DEFUN([AM_ENABLE_SHARED],    [SLIBTOOL_ENABLE_SHARED($@)])

AC_DEFUN([AC_ENABLE_STATIC],    [SLIBTOOL_ENABLE_STATIC($@)])

AC_DEFUN([AM_ENABLE_STATIC],    [SLIBTOOL_ENABLE_STATIC($@)])

AC_DEFUN([AC_DISABLE_SHARED],   [SLIBTOOL_DISABLE_SHARED($@)])

AC_DEFUN([AM_DISABLE_SHARED],   [SLIBTOOL_DISABLE_SHARED($@)])

AC_DEFUN([AC_DISABLE_STATIC],   [SLIBTOOL_DISABLE_STATIC($@)])

AC_DEFUN([AM_DISABLE_STATIC],   [SLIBTOOL_DISABLE_STATIC($@)])

# deprecated and no-op macros

# ---------------------------

AC_DEFUN([AC_LIBTOOL_DLOPEN],[])

AC_DEFUN([AC_LIBTOOL_WIN32_DLL],[])

AC_DEFUN([AC_DISABLE_FAST_INSTALL],[])