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If the Swift 3 or Swift 4 compiler is present or passed to the configure script in the SWIFTC variable, then the Makefile will compile a Swift 'servaldswift' executable to ensure that the module map links correctly into a stand-alone Swift program. Use the gold linker if supported, to avoid relocation errors on symbols produced by Swift when linking dynamic libraries.
57 lines
2.2 KiB
Plaintext
57 lines
2.2 KiB
Plaintext
# Serval Project Swift language support
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#
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# SYNOPSIS
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#
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# AX_PROG_SWIFTC
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#
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# DESCRIPTION
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#
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# AX_PROG_SWIFTC tests for the presence of a Swift compiler.
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#
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# Sets the SWIFTC shell variable to the name of the Swift executable (not the
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# Swift compiler!) either relative to $PATH or an absolute path if necessary;
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# this is usually just "swiftc".
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#
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# To force a specific compiler, either:
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#
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# - in configure.ac, set SWIFTC=yourcompiler before calling AX_PROG_SWIFTC,
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# or
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#
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# - before invoking ./configure, export SWIFTC=yourcompiler
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#
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# LICENSE
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#
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# Copyright (C) 2016 Flinders University
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# As a special exception, the respective Autoconf Macro's copyright owner
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# gives unlimited permission to copy, distribute and modify the configure
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# scripts that are the output of Autoconf when processing the Macro. You
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# need not follow the terms of the GNU General Public License when using
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# or distributing such scripts, even though portions of the text of the
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# Macro appear in them. The GNU General Public License (GPL) does govern
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# all other use of the material that constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by the Autoconf Archive. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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AU_ALIAS([AC_PROG_SWIFTC], [AX_PROG_SWIFTC])
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AC_DEFUN([AX_PROG_SWIFTC],[
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test "x$SWIFTC" = x && AC_CHECK_PROGS(SWIFTC, swiftc)
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AC_PROVIDE([$0])dnl
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])
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