diff options
Diffstat (limited to 'tools/configure.ac')
| -rw-r--r-- | tools/configure.ac | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/configure.ac b/tools/configure.ac index f7623f62..418ffd7d 100644 --- a/tools/configure.ac +++ b/tools/configure.ac @@ -527,6 +527,34 @@ AC_CACHE_CHECK( AM_CONDITIONAL(HAVE_BOOST_TEST, test x$boost_test_avail_cv_ = xtrue) +# check for C++11 and libc++ +#AC_CACHE_CHECK( +# [if C++11 and libc++ are available], +# [cpp11_avail_cv_], +# [cpp11_save_cxxflags=$CXXFLAGS +# cpp11_save_ldflags=$LDFLAGS +# CXXFLAGS="-std=c++11 -stdlib=libc++ $CXXFLAGS" +# LDFLAGS="-stdlib=libc++ $LDFLAGS" +# AC_LANG_PUSH(C++) +# AC_LINK_IFELSE( +# [AC_LANG_PROGRAM( +# [[#include <boost/regex.hpp> +# #include <iostream>]], +# [[boost::regex foo_regexp("Hello, world!"); +# for (auto i : "Hello, world") +# std::cout << i << std::endl;]])], +# [cpp11_avail_cv_=true], +# [cpp11_avail_cv_=false]) +# AC_LANG_POP +# CXXFLAGS="$cpp11_save_cxxflags" +# LDFLAGS="$cpp11_save_ldflags"]) +# +#if [test x$cpp11_avail_cv_ = xtrue]; then +# AC_DEFINE([HAVE_CPP11], [1], [Whether C++11 and libc++ are available]) +# CXXFLAGS="-std=c++11 -stdlib=libc++ $CXXFLAGS" +# LDFLAGS="-stdlib=libc++ $LDFLAGS" +#fi + # Checks for header files. AC_HEADER_STDC AC_HEADER_STAT |