JezK
Edit File: ax_cxx_header_tr1_unordered_set.m4
# =================================================================================== # http://www.gnu.org/software/autoconf-archive/ax_cxx_header_tr1_unordered_set.html # =================================================================================== # # SYNOPSIS # # AX_CXX_HEADER_TR1_UNORDERED_SET # # DESCRIPTION # # Check whether the TR1 include <unordered_set> exists and define # HAVE_TR1_UNORDERED_SET if it does. # # LICENSE # # Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com> # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. #serial 6 AU_ALIAS([AC_CXX_HEADER_TR1_UNORDERED_SET], [AX_CXX_HEADER_TR1_UNORDERED_SET]) AC_DEFUN([AX_CXX_HEADER_TR1_UNORDERED_SET], [ AC_CACHE_CHECK(for tr1/unordered_set, ax_cv_cxx_tr1_unordered_set, [AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include <tr1/unordered_set>], [using std::tr1::unordered_set;], ax_cv_cxx_tr1_unordered_set=yes, ax_cv_cxx_tr1_unordered_set=no) AC_LANG_RESTORE ]) if test "$ax_cv_cxx_tr1_unordered_set" = yes; then AC_DEFINE(HAVE_TR1_UNORDERED_SET,,[Define if tr1/unordered_set is present. ]) fi ])