1# This file is part of Autoconf.                       -*- Autoconf -*-
2# Erlang/OTP language support.
3# Copyright (C) 2006 Free Software Foundation, Inc.
4#
5# This program is free software; you can redistribute it and/or modify
6# it under the terms of the GNU General Public License as published by
7# the Free Software Foundation; either version 2, or (at your option)
8# any later version.
9#
10# This program is distributed in the hope that it will be useful,
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12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13# GNU General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
16# along with this program; if not, write to the Free Software
17# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18# 02110-1301, USA.
19#
20# As a special exception, the Free Software Foundation gives unlimited
21# permission to copy, distribute and modify the configure scripts that
22# are the output of Autoconf.  You need not follow the terms of the GNU
23# General Public License when using or distributing such scripts, even
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46#
47# Written by Romain Lenglet.
48
49
50# AC_ERLANG_PATH_ERLC([VALUE-IF-NOT-FOUND], [PATH])
51# ----------------------------------------------
52AC_DEFUN([AC_ERLANG_PATH_ERLC],
53[AC_ARG_VAR([ERLC], [Erlang/OTP compiler command [autodetected]])dnl
54if test -n "$ERLC"; then
55    AC_MSG_CHECKING([for erlc])
56    AC_MSG_RESULT([$ERLC])
57else
58    AC_PATH_TOOL(ERLC, erlc, [$1], [$2])
59fi
60AC_ARG_VAR([ERLCFLAGS], [Erlang/OTP compiler flags [none]])dnl
61])# AC_ERLANG_PATH_ERLC
62
63# AC_ERLANG_NEED_ERLC([PATH])
64# ------------------------
65AC_DEFUN([AC_ERLANG_NEED_ERLC],
66[AC_ERLANG_PATH_ERLC([not found], [$1])
67if test "$ERLC" = "not found"; then
68    AC_MSG_ERROR([Erlang/OTP compiler (erlc) not found but required])
69fi
70])# AC_ERLANG_NEED_ERLC
71
72# AC_ERLANG_PATH_ERL([VALUE-IF-NOT-FOUND], [PATH])
73# ---------------------------------------------
74AC_DEFUN([AC_ERLANG_PATH_ERL],
75[AC_ARG_VAR([ERL], [Erlang/OTP interpreter command [autodetected]])dnl
76if test -n "$ERL"; then
77    AC_MSG_CHECKING([for erl])
78    AC_MSG_RESULT([$ERL])
79else
80    AC_PATH_TOOL(ERL, erl, [$1], [$2])[]dnl
81fi
82])# AC_ERLANG_PATH_ERL
83
84# AC_ERLANG_NEED_ERL([PATH])
85# -----------------------
86AC_DEFUN([AC_ERLANG_NEED_ERL],
87[AC_ERLANG_PATH_ERL([not found], [$1])
88if test "$ERL" = "not found"; then
89    AC_MSG_ERROR([Erlang/OTP interpreter (erl) not found but required])
90fi
91])# AC_ERLANG_NEED_ERL
92
93
94
95
96
97
98
99dnl Extend Autoconf's AC_LANG macro to accept Erlang as a language for tests
100
101## ----------------------- ##
102## 1. Language selection.  ##
103## ----------------------- ##
104
105
106# ------------------------- #
107# 1x. The Erlang language.  #
108# ------------------------- #
109
110# AC_LANG(Erlang)
111# ---------------
112m4_define([AC_LANG(Erlang)],
113[ac_ext=erl
114ac_compile='$ERLC $ERLCFLAGS -b beam conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
115ac_link='$ERLC $ERLCFLAGS -b beam conftest.$ac_ext >&AS_MESSAGE_LOG_FD ; echo "#!/bin/sh" > conftest$ac_exeext ; echo "\"$ERL\" -run conftest start -run init stop -noshell" >> conftest$ac_exeext ; chmod +x conftest$ac_exeext'
116])
117
118# AC_LANG_ERLANG
119# --------------
120m4_define([AC_LANG_ERLANG], [AC_LANG(Erlang)])
121
122
123# _AC_LANG_ABBREV(Erlang)
124# -----------------------
125m4_define([_AC_LANG_ABBREV(Erlang)], [erl])
126
127
128# _AC_LANG_PREFIX(Erlang)
129# -----------------------
130m4_define([_AC_LANG_PREFIX(Erlang)], [ERL])
131
132
133## ---------------------- ##
134## 2.Producing programs.  ##
135## ---------------------- ##
136
137
138# ---------------------- #
139# 2x. Generic routines.  #
140# ---------------------- #
141
142# AC_LANG_SOURCE(Erlang)(BODY)
143# ----------------------------
144m4_define([AC_LANG_SOURCE(Erlang)],
145[$1])
146
147# AC_LANG_PROGRAM(Erlang)([PROLOGUE], [BODY])
148# -------------------------------------------
149m4_define([AC_LANG_PROGRAM(Erlang)],
150[[-module(conftest).
151-export([start/0]).]]
152[$1
153start() ->
154$2
155.
156])
157
158
159## -------------------------------------------- ##
160## 3. Looking for Compilers and Preprocessors.  ##
161## -------------------------------------------- ##
162
163# ------------------------- #
164# 3x. The Erlang compiler.  #
165# ------------------------- #
166
167# AC_LANG_PREPROC(Erlang)
168# -----------------------
169# Find the Erlang preprocessor.  Must be AC_DEFUN'd to be AC_REQUIRE'able.
170AC_DEFUN([AC_LANG_PREPROC(Erlang)],
171[m4_warn([syntax],
172         [$0: No preprocessor defined for ]_AC_LANG)])
173
174# AC_LANG_COMPILER(Erlang)
175# ----------------------------
176# Find the Erlang compiler.  Must be AC_DEFUN'd to be AC_REQUIRE'able.
177AC_DEFUN([AC_LANG_COMPILER(Erlang)],
178[AC_REQUIRE([AC_ERLANG_PATH_ERLC])])
179
180
181
182
183
184dnl Macro for checking if an Erlang library is installed, and to
185dnl determine its version
186
187# AC_ERLANG_CHECK_LIB(LIBRARY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
188# -------------------------------------------------------------------
189AC_DEFUN([AC_ERLANG_CHECK_LIB],
190[AC_REQUIRE([AC_ERLANG_PATH_ERLC])[]dnl
191AC_REQUIRE([AC_ERLANG_PATH_ERL])[]dnl
192AC_CACHE_CHECK([for Erlang/OTP '$1' library subdirectory],
193    [erlang_cv_lib_dir_$1],
194    [AC_LANG_PUSH(Erlang)[]dnl
195     AC_RUN_IFELSE(
196        [AC_LANG_PROGRAM([], [dnl
197            ReturnValue = case code:lib_dir("[$1]") of
198            {error, bad_name} ->
199                file:write_file("conftest.out", "not found\n"),
200                1;
201            LibDir ->
202                file:write_file("conftest.out", LibDir),
203                0
204            end,
205            halt(ReturnValue)])],
206        [erlang_cv_lib_dir_$1=`cat conftest.out`],
207        [if test ! -f conftest.out; then
208             AC_MSG_FAILURE([test Erlang program execution failed])
209         else
210             erlang_cv_lib_dir_$1="not found"
211         fi])
212     AC_LANG_POP(Erlang)[]dnl
213    ])
214AC_CACHE_CHECK([for Erlang/OTP '$1' library version],
215    [erlang_cv_lib_ver_$1],
216    [AS_IF([test "$erlang_cv_lib_dir_$1" = "not found"],
217        [erlang_cv_lib_ver_$1="not found"],
218        [erlang_cv_lib_ver_$1=`echo "$erlang_cv_lib_dir_$1" | sed -n -e 's,^.*-\([[^/-]]*\)$,\1,p'`])[]dnl
219    ])
220AC_SUBST([ERLANG_LIB_DIR_$1], [$erlang_cv_lib_dir_$1])
221AC_SUBST([ERLANG_LIB_VER_$1], [$erlang_cv_lib_ver_$1])
222AS_IF([test "$erlang_cv_lib_dir_$1" = "not found"], [$3], [$2])
223])# AC_ERLANG_CHECK_LIB
224
225
226
227dnl Determines the Erlang/OTP root directory
228
229# AC_ERLANG_SUBST_ROOT_DIR
230# ---------------
231AC_DEFUN([AC_ERLANG_SUBST_ROOT_DIR],
232[AC_REQUIRE([AC_ERLANG_NEED_ERLC])[]dnl
233AC_REQUIRE([AC_ERLANG_NEED_ERL])[]dnl
234AC_CACHE_CHECK([for Erlang/OTP root directory],
235    [erlang_cv_root_dir],
236    [AC_LANG_PUSH(Erlang)[]dnl
237     AC_RUN_IFELSE(
238        [AC_LANG_PROGRAM([], [dnl
239            RootDir = code:root_dir(),
240            file:write_file("conftest.out", RootDir),
241            ReturnValue = 0,
242            halt(ReturnValue)])],
243        [erlang_cv_root_dir=`cat conftest.out`],
244        [AC_MSG_FAILURE([test Erlang program execution failed])])
245     AC_LANG_POP(Erlang)[]dnl
246    ])
247AC_SUBST([ERLANG_ROOT_DIR], [$erlang_cv_root_dir])
248])# AC_ERLANG_SUBST_ROOT_DIR
249
250# AC_ERLANG_SUBST_LIB_DIR
251# ---------------
252AC_DEFUN([AC_ERLANG_SUBST_LIB_DIR],
253[AC_REQUIRE([AC_ERLANG_NEED_ERLC])[]dnl
254AC_REQUIRE([AC_ERLANG_NEED_ERL])[]dnl
255AC_CACHE_CHECK([for Erlang/OTP library base directory],
256    [erlang_cv_lib_dir],
257    [AC_LANG_PUSH(Erlang)[]dnl
258     AC_RUN_IFELSE(
259        [AC_LANG_PROGRAM([], [dnl
260            LibDir = code:lib_dir(),
261            file:write_file("conftest.out", LibDir),
262            ReturnValue = 0,
263            halt(ReturnValue)])],
264        [erlang_cv_lib_dir=`cat conftest.out`],
265        [AC_MSG_FAILURE([test Erlang program execution failed])])
266     AC_LANG_POP(Erlang)[]dnl
267    ])
268AC_SUBST([ERLANG_LIB_DIR], [$erlang_cv_lib_dir])
269])# AC_ERLANG_SUBST_LIB_DIR
270
271
272dnl Directories for installing Erlang/OTP packages are separated from the
273dnl directories determined by running the Erlang/OTP installation that is used
274dnl for building.
275
276
277# AC_ERLANG_SUBST_INSTALL_LIB_DIR
278# ---------------
279AC_DEFUN([AC_ERLANG_SUBST_INSTALL_LIB_DIR],
280[AC_MSG_CHECKING([for Erlang/OTP library installation base directory])
281AC_ARG_VAR([ERLANG_INSTALL_LIB_DIR],
282    [Erlang/OTP library installation base directory [LIBDIR/erlang/lib]])
283if test -n "$ERLANG_INSTALL_LIB_DIR"; then
284    AC_MSG_RESULT([$ERLANG_INSTALL_LIB_DIR])
285else
286    AC_SUBST([ERLANG_INSTALL_LIB_DIR], ['${libdir}/erlang/lib'])
287    AC_MSG_RESULT([$libdir/erlang/lib])
288fi
289])# AC_ERLANG_SUBST_INSTALL_LIB_DIR
290
291
292# AC_ERLANG_SUBST_INSTALL_LIB_SUBDIR(PACKAGE_TARNAME, PACKAGE_VERSION)
293# ---------------
294AC_DEFUN([AC_ERLANG_SUBST_INSTALL_LIB_SUBDIR],
295[AC_REQUIRE([AC_ERLANG_SUBST_INSTALL_LIB_DIR])[]dnl
296AC_MSG_CHECKING([for Erlang/OTP '$1' library installation subdirectory])
297AC_ARG_VAR([ERLANG_INSTALL_LIB_DIR_$1],
298    [Erlang/OTP '$1' library installation subdirectory [ERLANG_INSTALL_LIB_DIR/$1-$2]])
299if test -n "$ERLANG_INSTALL_LIB_DIR_$1"; then
300    AC_MSG_RESULT([$ERLANG_INSTALL_LIB_DIR_$1])
301else
302    AC_SUBST([ERLANG_INSTALL_LIB_DIR_$1], ['${ERLANG_INSTALL_LIB_DIR}/$1-$2'])
303    AC_MSG_RESULT([$ERLANG_INSTALL_LIB_DIR/$1-$2])
304fi
305])# AC_ERLANG_SUBST_INSTALL_LIB_SUBDIR
306
307