golden hour

/usr/share/autoconf/autoconf

File/Folder	Size	Actions
autoconf.m4	3.61 KB
autoconf.m4f	473.73 KB
autoheader.m4	2.68 KB
autoscan.m4	1.98 KB
autotest.m4	2.84 KB
autoupdate.m4	4.22 KB
c.m4	59.55 KB
erlang.m4	9.68 KB
fortran.m4	63.66 KB
functions.m4	62.1 KB
general.m4	99.97 KB
go.m4	4.53 KB
headers.m4	29.8 KB
lang.m4	23.29 KB
libs.m4	15.84 KB
oldnames.m4	3.78 KB
programs.m4	28.93 KB
specific.m4	14.04 KB
status.m4	54.47 KB
types.m4	35.34 KB

Edit: erlang.m4

# This file is part of Autoconf.                       -*- Autoconf -*-
# Erlang/OTP language support.
# Copyright (C) 2006, 2008-2012 Free Software Foundation, Inc.

# This file is part of Autoconf.  This program is free
# software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# Under Section 7 of GPL version 3, you are granted additional
# permissions described in the Autoconf Configure Script Exception,
# version 3.0, as published by the Free Software Foundation.
#
# You should have received a copy of the GNU General Public License
# and a copy of the Autoconf Configure Script Exception along with
# this program; see the files COPYINGv3 and COPYING.EXCEPTION
# respectively.  If not, see <http://www.gnu.org/licenses/>.

# Written by Romain Lenglet.

# Table of Contents:
#
# 0. Utility macros
#
# 1. Language selection
#    and routines to produce programs in a given language.
#
# 2. Producing programs in a given language.
#
# 3. Looking for a compiler
#    And possibly the associated preprocessor.

## ------------------- ##
## 0. Utility macros.  ##
## ------------------- ##

# AC_ERLANG_PATH_ERLC([VALUE-IF-NOT-FOUND], [PATH])
# -------------------------------------------------
AC_DEFUN([AC_ERLANG_PATH_ERLC],
[AC_ARG_VAR([ERLC], [Erlang/OTP compiler command [autodetected]])dnl
if test -n "$ERLC"; then
    AC_MSG_CHECKING([for erlc])
    AC_MSG_RESULT([$ERLC])
else
    AC_PATH_TOOL(ERLC, erlc, [$1], [$2])
fi
AC_ARG_VAR([ERLCFLAGS], [Erlang/OTP compiler flags [none]])dnl
])

# AC_ERLANG_NEED_ERLC([PATH])
# ---------------------------
AC_DEFUN([AC_ERLANG_NEED_ERLC],
[AC_ERLANG_PATH_ERLC([not found], [$1])
if test "$ERLC" = "not found"; then
    AC_MSG_ERROR([Erlang/OTP compiler (erlc) not found but required])
fi
])

# AC_ERLANG_PATH_ERL([VALUE-IF-NOT-FOUND], [PATH])
# ------------------------------------------------
AC_DEFUN([AC_ERLANG_PATH_ERL],
[AC_ARG_VAR([ERL], [Erlang/OTP interpreter command [autodetected]])dnl
if test -n "$ERL"; then
    AC_MSG_CHECKING([for erl])
    AC_MSG_RESULT([$ERL])
else
    AC_PATH_TOOL(ERL, erl, [$1], [$2])[]dnl
fi
])

# AC_ERLANG_NEED_ERL([PATH])
# --------------------------
AC_DEFUN([AC_ERLANG_NEED_ERL],
[AC_ERLANG_PATH_ERL([not found], [$1])
if test "$ERL" = "not found"; then
    AC_MSG_ERROR([Erlang/OTP interpreter (erl) not found but required])
fi
])

## ----------------------- ##
## 1. Language selection.  ##
## ----------------------- ##

# AC_LANG(Erlang)
# ---------------
AC_LANG_DEFINE([Erlang], [erl], [ERL], [ERLC], [],
[ac_ext=erl
ac_compile='$ERLC $ERLCFLAGS -b beam conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
ac_link='$ERLC $ERLCFLAGS -b beam conftest.$ac_ext >&AS_MESSAGE_LOG_FD && echo "[#]!/bin/sh" > conftest$ac_exeext && AS_ECHO(["\"$ERL\" -run conftest start -run init stop -noshell"]) >> conftest$ac_exeext && chmod +x conftest$ac_exeext'
])

# AC_LANG_ERLANG
# --------------
AU_DEFUN([AC_LANG_ERLANG], [AC_LANG(Erlang)])

## ----------------------- ##
## 2. Producing programs.  ##
## ----------------------- ##

# AC_LANG_PROGRAM(Erlang)([PROLOGUE], [BODY])
# -------------------------------------------
m4_define([AC_LANG_PROGRAM(Erlang)],
[[-module(conftest).
-export([start/0]).]]
[$1
start() ->
$2
.
])

# _AC_LANG_NULL_PROGRAM(Erlang)
# -----------------------------
# Produce source that does nothing.
m4_define([_AC_LANG_NULL_PROGRAM(Erlang)],
[AC_LANG_PROGRAM([], [halt(0)])])

# _AC_LANG_IO_PROGRAM(Erlang)
# ---------------------------
# Produce source that performs I/O.
m4_define([_AC_LANG_IO_PROGRAM(Erlang)],
[AC_LANG_PROGRAM([], [dnl
   ReturnValue = case file:write_file("conftest.out", "") of
       {error, _} -> 1;
       ok -> 0
   end,
   halt(ReturnValue)])])

## -------------------------------------------- ##
## 3. Looking for Compilers and Preprocessors.  ##
## -------------------------------------------- ##

# AC_LANG_PREPROC(Erlang)
# -----------------------
# Find the Erlang preprocessor.  Must be AC_DEFUN'd to be AC_REQUIRE'able.
AC_DEFUN([AC_LANG_PREPROC(Erlang)],
[m4_warn([syntax],
	 [$0: No preprocessor defined for ]_AC_LANG)])

# AC_LANG_COMPILER(Erlang)
# ------------------------
# Find the Erlang compiler.  Must be AC_DEFUN'd to be AC_REQUIRE'able.
AC_DEFUN([AC_LANG_COMPILER(Erlang)],
[AC_REQUIRE([AC_ERLANG_PATH_ERLC])])

# AC_ERLANG_CHECK_LIB(LIBRARY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# ----------------------------------------------------------------------
# Macro for checking if an Erlang library is installed, and to
# determine its version.
AC_DEFUN([AC_ERLANG_CHECK_LIB],
[AC_REQUIRE([AC_ERLANG_PATH_ERLC])[]dnl
AC_REQUIRE([AC_ERLANG_PATH_ERL])[]dnl
AC_CACHE_CHECK([for Erlang/OTP '$1' library subdirectory],
    [ac_cv_erlang_lib_dir_$1],
    [AC_LANG_PUSH(Erlang)[]dnl
     AC_RUN_IFELSE(
	[AC_LANG_PROGRAM([], [dnl
	    ReturnValue = case code:lib_dir("[$1]") of
	    {error, bad_name} ->
		file:write_file("conftest.out", "not found\n"),
		1;
	    LibDir ->
		file:write_file("conftest.out", LibDir),
		0
	    end,
	    halt(ReturnValue)])],
	[ac_cv_erlang_lib_dir_$1=`cat conftest.out`
	 rm -f conftest.out],
	[if test ! -f conftest.out; then
	     AC_MSG_FAILURE([test Erlang program execution failed])
	 else
	     ac_cv_erlang_lib_dir_$1="not found"
	     rm -f conftest.out
	 fi])
     AC_LANG_POP(Erlang)[]dnl
    ])
AC_CACHE_CHECK([for Erlang/OTP '$1' library version],
    [ac_cv_erlang_lib_ver_$1],
    [AS_IF([test "$ac_cv_erlang_lib_dir_$1" = "not found"],
	[ac_cv_erlang_lib_ver_$1="not found"],
	[ac_cv_erlang_lib_ver_$1=`AS_ECHO(["$ac_cv_erlang_lib_dir_$1"]) | sed -n -e 's,^.*-$[[^/-]]*$$,\1,p'`])[]dnl
    ])
AC_SUBST([ERLANG_LIB_DIR_$1], [$ac_cv_erlang_lib_dir_$1])
AC_SUBST([ERLANG_LIB_VER_$1], [$ac_cv_erlang_lib_ver_$1])
AS_IF([test "$ac_cv_erlang_lib_dir_$1" = "not found"], [$3], [$2])
])# AC_ERLANG_CHECK_LIB

# AC_ERLANG_SUBST_ROOT_DIR
# ------------------------
# Determines the Erlang/OTP root directory.
AC_DEFUN([AC_ERLANG_SUBST_ROOT_DIR],
[AC_REQUIRE([AC_ERLANG_NEED_ERLC])[]dnl
AC_REQUIRE([AC_ERLANG_NEED_ERL])[]dnl
AC_CACHE_CHECK([for Erlang/OTP root directory],
    [ac_cv_erlang_root_dir],
    [AC_LANG_PUSH(Erlang)[]dnl
     AC_RUN_IFELSE(
	[AC_LANG_PROGRAM([], [dnl
	    RootDir = code:root_dir(),
	    file:write_file("conftest.out", RootDir),
	    ReturnValue = 0,
	    halt(ReturnValue)])],
	[ac_cv_erlang_root_dir=`cat conftest.out`
	 rm -f conftest.out],
	[rm -f conftest.out
	 AC_MSG_FAILURE([test Erlang program execution failed])])
     AC_LANG_POP(Erlang)[]dnl
    ])
AC_SUBST([ERLANG_ROOT_DIR], [$ac_cv_erlang_root_dir])
])# AC_ERLANG_SUBST_ROOT_DIR

# AC_ERLANG_SUBST_LIB_DIR
# -----------------------
AC_DEFUN([AC_ERLANG_SUBST_LIB_DIR],
[AC_REQUIRE([AC_ERLANG_NEED_ERLC])[]dnl
AC_REQUIRE([AC_ERLANG_NEED_ERL])[]dnl
AC_CACHE_CHECK([for Erlang/OTP library base directory],
    [ac_cv_erlang_lib_dir],
    [AC_LANG_PUSH(Erlang)[]dnl
     AC_RUN_IFELSE(
	[AC_LANG_PROGRAM([], [dnl
	    LibDir = code:lib_dir(),
	    file:write_file("conftest.out", LibDir),
	    ReturnValue = 0,
	    halt(ReturnValue)])],
	[ac_cv_erlang_lib_dir=`cat conftest.out`
	 rm -f conftest.out],
	[rm -f conftest.out
	 AC_MSG_FAILURE([test Erlang program execution failed])])
     AC_LANG_POP(Erlang)[]dnl
    ])
AC_SUBST([ERLANG_LIB_DIR], [$ac_cv_erlang_lib_dir])
])# AC_ERLANG_SUBST_LIB_DIR

# AC_ERLANG_SUBST_INSTALL_LIB_DIR
# -------------------------------
# Directories for installing Erlang/OTP packages are separated from the
# directories determined by running the Erlang/OTP installation that is used
# for building.
AC_DEFUN([AC_ERLANG_SUBST_INSTALL_LIB_DIR],
[AC_MSG_CHECKING([for Erlang/OTP library installation base directory])
AC_ARG_VAR([ERLANG_INSTALL_LIB_DIR],
    [Erlang/OTP library installation base directory [LIBDIR/erlang/lib]])
if test -n "$ERLANG_INSTALL_LIB_DIR"; then
    AC_MSG_RESULT([$ERLANG_INSTALL_LIB_DIR])
else
    AC_SUBST([ERLANG_INSTALL_LIB_DIR], ['${libdir}/erlang/lib'])
    AC_MSG_RESULT([$libdir/erlang/lib])
fi
])# AC_ERLANG_SUBST_INSTALL_LIB_DIR

# AC_ERLANG_SUBST_INSTALL_LIB_SUBDIR(PACKAGE_TARNAME, PACKAGE_VERSION)
# --------------------------------------------------------------------
AC_DEFUN([AC_ERLANG_SUBST_INSTALL_LIB_SUBDIR],
[AC_REQUIRE([AC_ERLANG_SUBST_INSTALL_LIB_DIR])[]dnl
AC_MSG_CHECKING([for Erlang/OTP '$1' library installation subdirectory])
AC_ARG_VAR([ERLANG_INSTALL_LIB_DIR_$1],
    [Erlang/OTP '$1' library installation subdirectory
       [ERLANG_INSTALL_LIB_DIR/$1-$2]])
if test -n "$ERLANG_INSTALL_LIB_DIR_$1"; then
    AC_MSG_RESULT([$ERLANG_INSTALL_LIB_DIR_$1])
else
    AC_SUBST([ERLANG_INSTALL_LIB_DIR_$1], ['${ERLANG_INSTALL_LIB_DIR}/$1-$2'])
    AC_MSG_RESULT([$ERLANG_INSTALL_LIB_DIR/$1-$2])
fi
])# AC_ERLANG_SUBST_INSTALL_LIB_SUBDIR

# AC_ERLANG_SUBST_ERTS_VER
# ------------------------
# Determines the Erlang runtime system version.
AC_DEFUN([AC_ERLANG_SUBST_ERTS_VER],
[AC_REQUIRE([AC_ERLANG_NEED_ERLC])[]dnl
AC_REQUIRE([AC_ERLANG_NEED_ERL])[]dnl
AC_CACHE_CHECK([for Erlang/OTP ERTS version],
    [ac_cv_erlang_erts_ver],
    [AC_LANG_PUSH([Erlang])[]dnl
     AC_RUN_IFELSE(
	[AC_LANG_PROGRAM([], [dnl
	    Version = erlang:system_info(version),
	    file:write_file("conftest.out", Version),
	    ReturnValue = 0,
	    halt(ReturnValue)])],
	[ac_cv_erlang_erts_ver=`cat conftest.out`
	 rm -f conftest.out],
	[rm -f conftest.out
	 AC_MSG_FAILURE([test Erlang program execution failed])])
     AC_LANG_POP([Erlang])[]dnl
    ])
AC_SUBST([ERLANG_ERTS_VER], [$ac_cv_erlang_erts_ver])
])# AC_ERLANG_SUBST_ERTS_VER