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cond-if.m4
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# AM_COND_IF -*- Autoconf -*- # Copyright (C) 2008-2013 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # _AM_COND_IF # _AM_COND_ELSE # _AM_COND_ENDIF # -------------- # These macros are only used for tracing. m4_define([_AM_COND_IF]) m4_define([_AM_COND_ELSE]) m4_define([_AM_COND_ENDIF]) # AM_COND_IF(COND, [IF-TRUE], [IF-FALSE]) # --------------------------------------- # If the shell condition COND is true, execute IF-TRUE, otherwise execute # IF-FALSE. Allow automake to learn about conditional instantiating macros # (the AC_CONFIG_FOOS). AC_DEFUN([AM_COND_IF], [m4_ifndef([_AM_COND_VALUE_$1], [m4_fatal([$0: no such condition "$1"])])dnl _AM_COND_IF([$1])dnl if test -z "$$1_TRUE"; then : m4_n([$2])[]dnl m4_ifval([$3], [_AM_COND_ELSE([$1])dnl else $3 ])dnl _AM_COND_ENDIF([$1])dnl fi[]dnl ])