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821bf2bd72
toolchain independent, but since there's no portable method for doing makefile includes, we can actually use the dependencies with GNU make. It's easy to add this for other makes, but I don't have any to test. This also moves as much m4 as possible into the m4 directory where no-one has to look at it. AFAICT, there's no way to hide depcomp in there too, which is unfortunate. (This used to be commit aa14900f8291a017aa7fab2bbb9a6c79b12889b2)
35 lines
1.0 KiB
Plaintext
35 lines
1.0 KiB
Plaintext
# AM_CONDITIONAL -*- Autoconf -*-
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# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006
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# Free Software Foundation, Inc.
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#
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# serial 8
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# AM_CONDITIONAL(NAME, SHELL-CONDITION)
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# -------------------------------------
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# Define a conditional.
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AC_DEFUN([AM_CONDITIONAL],
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[AC_PREREQ(2.52)dnl
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ifelse([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
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[$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
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AC_SUBST([$1_TRUE])dnl
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AC_SUBST([$1_FALSE])dnl
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_AM_SUBST_NOTMAKE([$1_TRUE])dnl
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_AM_SUBST_NOTMAKE([$1_FALSE])dnl
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if $2; then
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$1_TRUE=
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$1_FALSE='#'
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else
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$1_TRUE='#'
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$1_FALSE=
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fi
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AC_CONFIG_COMMANDS_PRE(
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[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
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AC_MSG_ERROR([[conditional "$1" was never defined.
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Usually this means the macro was only invoked conditionally.]])
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fi])])
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