@node ax_cxx_have_bit_or @unnumberedsec ax_cxx_have_bit_or @majorheading Synopsis @smallexample AX_CXX_HAVE_BIT_OR() @end smallexample @majorheading Description This macro checks if std::bit_or, added in C++11, is defined in the header. If it is, define the ax_cv_cxx_have_bit_or environment variable to "yes" and define HAVE_CXX_BIT_OR. @majorheading Source Code Download the @uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_cxx_have_bit_or.m4,latest version of @file{ax_cxx_have_bit_or.m4}} or browse @uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=history;f=m4/ax_cxx_have_bit_or.m4,the macro's revision history}. @majorheading License @w{Copyright @copyright{} 2014 Enrico M. Crisostomo @email{enrico.m.crisostomo@@gmail.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.