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build: fix building with old versions of autoconf

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Norio Kobota 2014-03-25 17:35:47 +09:00 committed by Saúl Ibarra Corretgé
parent ba47e68824
commit 1759781c90
2 changed files with 22 additions and 0 deletions
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1
configure.ac
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@ -16,6 +16,7 @@ AC_PREREQ(2.57)
AC_INIT([libuv], [0.11.23], [https://github.com/joyent/libuv/issues])
AC_CONFIG_MACRO_DIR([m4])
m4_include([m4/libuv-extra-automake-flags.m4])
m4_include([m4/as_case.m4])
AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects] UV_EXTRA_AUTOMAKE_FLAGS)
AC_CANONICAL_HOST
AC_ENABLE_SHARED

21
m4/as_case.m4 Normal file
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@ -0,0 +1,21 @@
# AS_CASE(WORD, [PATTERN1], [IF-MATCHED1]...[DEFAULT])
# ----------------------------------------------------
# Expand into
# | case WORD in
# | PATTERN1) IF-MATCHED1 ;;
# | ...
# | *) DEFAULT ;;
# | esac
m4_define([_AS_CASE],
[m4_if([$#], 0, [m4_fatal([$0: too few arguments: $#])],
[$#], 1, [ *) $1 ;;],
[$#], 2, [ $1) m4_default([$2], [:]) ;;],
[ $1) m4_default([$2], [:]) ;;
$0(m4_shiftn(2, $@))])dnl
])
m4_defun([AS_CASE],
[m4_ifval([$2$3],
[case $1 in
_AS_CASE(m4_shift($@))
esac])])