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| author | Boris Kolpackov <boris@codesynthesis.com> | 2012-02-28 12:38:15 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2012-02-28 12:38:15 +0200 |
| commit | 3012187847b2783c49153db3f5486b84074cb2b0 (patch) | |
| tree | 8d3b63fbea88f2cb530dc6f8121577856b4f37b8 /m4/cxx11.m4 | |
| parent | 3c13e8cd7a1b0bf7490b172b48424a91b126c650 (diff) | |
Build infrastructure for C++11 support
Diffstat (limited to 'm4/cxx11.m4')
| -rw-r--r-- | m4/cxx11.m4 | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/m4/cxx11.m4 b/m4/cxx11.m4 new file mode 100644 index 0000000..774f20d --- /dev/null +++ b/m4/cxx11.m4 @@ -0,0 +1,38 @@ +dnl file : m4/cxx11.m4 +dnl copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC +dnl license : GNU GPL v2; see accompanying LICENSE file +dnl +dnl CXX11(MACRO, DESCRIPTION) +dnl +dnl Check if we are compiling in the C++11 mode. If we are, define MACRO as +dnl both a macro and conditional as well as set the cxx11 variable to 'yes'. +dnl +AC_DEFUN([CXX11], +[ +cxx11=no + +AC_MSG_CHECKING([whether we are in C++11 mode]) + +CXX_LIBTOOL_LINK_IFELSE( +AC_LANG_SOURCE([[ +#include <memory> + +int +main () +{ + std::shared_ptr<int> p (new int (10)); + *p = 11; +} +]]), +[cxx11=yes]) + +if test x"$cxx11" = xyes; then + AC_MSG_RESULT([yes]) + AC_DEFINE([$1], [1], [$2]) +else + AC_MSG_RESULT([no]) +fi + +AM_CONDITIONAL([$1], [test x$cxx11 = xyes]) + +])dnl |