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Diffstat (limited to 'lib/autoconf/go.m4')
| -rw-r--r-- | lib/autoconf/go.m4 | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/lib/autoconf/go.m4 b/lib/autoconf/go.m4 new file mode 100644 index 0000000..bf215bf --- /dev/null +++ b/lib/autoconf/go.m4 @@ -0,0 +1,177 @@ +# 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 |