/usr/share/autoconf/autoconf/go.m4 is in autoconf 2.69-11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | # This file is part of Autoconf. -*- Autoconf -*-
# Go language support.
# Copyright (C) 2011-2012 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/>.
# Go support contributed by Ian Lance Taylor.
# This currently only supports gccgo, not 6g/8g/5g.
# ------------------- #
# Language selection.
# ------------------- #
# AC_LANG(Go)
# -----------
AC_LANG_DEFINE([Go], [go], [GO], [GOC], [],
[ac_ext=go
ac_compile='$GOC -c $GOFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
ac_link='$GOC -o conftest$ac_exeext $GOFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD'
ac_compiler_gnu=yes
])
# AC_LANG_GO
# ----------
AU_DEFUN([AC_LANG_GO], [AC_LANG(Go)])
# ------------------- #
# Producing programs.
# ------------------- #
# AC_LANG_PROGRAM(Go)([PROLOGUE], [BODY])
# ---------------------------------------
m4_define([AC_LANG_PROGRAM(Go)],
[package main
$1
func main() {
$2
}])
# _AC_LANG_IO_PROGRAM(Go)
# -----------------------
# Produce source that performs I/O.
m4_define([_AC_LANG_IO_PROGRAM(Go)],
[AC_LANG_PROGRAM([import ( "fmt"; "os" )],
[f, err := os.Open("conftest.out", os.O_CREATE|os.O_WRONLY, 0777)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
if err = f.Close(); err != nil {
fmt.Println(err)
os.Exit(1)
}
os.Exit(0)
])])
# AC_LANG_CALL(Go)(PROLOGUE, FUNCTION)
# ------------------------------------
# Avoid conflicting decl of main.
m4_define([AC_LANG_CALL(Go)],
[AC_LANG_PROGRAM([$1
m4_if([$2], [main], ,
[func $2()])],[$2()])])
# AC_LANG_FUNC_LINK_TRY(Go)(FUNCTION)
# -----------------------------------
# Try to link a program which calls FUNCTION.
m4_define([AC_LANG_FUNC_LINK_TRY(Go)],
[AC_LANG_PROGRAM(
[func $1() int
var f = $1
], [return f()])])
# AC_LANG_BOOL_COMPILE_TRY(Go)(PROLOGUE, EXPRESSION)
# --------------------------------------------------
# Return a program which is valid if EXPRESSION is nonzero.
m4_define([AC_LANG_BOOL_COMPILE_TRY(Go)],
[AC_LANG_PROGRAM([$1], [var test_array @<:@1 - 2 * !($2)@:>@int
test_array @<:@0@:>@ = 0
])])
# AC_LANG_INT_SAVE(Go)(PROLOGUE, EXPRESSION)
# ------------------------------------------
m4_define([AC_LANG_INT_SAVE(Go)],
[AC_LANG_PROGRAM([$1
import (
"fmt"
"os"
)
],
[f, err := os.Open("conftest.val", os.O_CREATE|os.O_WRONLY, 0777)
if err != nil {
os.Exit(1)
}
if $2 < 0 {
int64 i = int64($2)
if i != $2 {
os.Exit(1)
}
if _, err := fmt.Print(f, i); err != nil {
os.Exit(1)
}
} else {
uint64 i = uint64($2)
if i != $2 {
os.Exit(1)
}
if _, err := fmt.Print(f, i); err != nil {
os.Exit(1)
}
}
if err = f.Close(); err != nil {
os.Exit(1)
}
os.Exit(0);
])])
# ---------------------- #
# Looking for compilers. #
# ---------------------- #
# AC_LANG_COMPILER(Go)
# --------------------
AC_DEFUN([AC_LANG_COMPILER(Go)],
[AC_REQUIRE([AC_PROG_GO])])
# AC_PROG_GO
# ----------
AN_MAKEVAR([GOC], [AC_PROG_GO])
AN_PROGRAM([gccgo], [AC_PROG_GO])
AC_DEFUN([AC_PROG_GO],
[AC_LANG_PUSH(Go)dnl
AC_ARG_VAR([GOC], [Go compiler command])dnl
AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
m4_ifval([$1],
[AC_CHECK_TOOLS(GOC, [$1])],
[AC_CHECK_TOOL(GOC, gccgo)
if test -z "$GOC"; then
if test -n "$ac_tool_prefix"; then
AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [$ac_tool_prefix}gccgo])
fi
fi
if test -z "$GOC"; then
AC_CHECK_PROG(GOC, gccgo, gccgo, , , false)
fi
])
# Provide some information about the compiler.
_AS_ECHO_LOG([checking for _AC_LANG compiler version])
set X $ac_compile
ac_compiler=$[2]
_AC_DO_LIMIT([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
GOFLAGS="-g -O2"
AC_LANG_POP(Go)dnl
])# AC_PROG_GO
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