diff options
| author | Patrick Ohly <patrick.ohly@intel.com> | 2017-12-21 08:45:41 -0800 |
|---|---|---|
| committer | Patrick Ohly <patrick.ohly@intel.com> | 2018-01-03 10:39:50 +0100 |
| commit | 52a34570373fc3d03e69456c2d4f460265bf9a22 (patch) | |
| tree | ecc4da3dcece463acd5fbc1e36f1210f53020def | |
| parent | 7e4bdb5b07098ab81f2d013ef276c58480e8eb77 (diff) | |
C++: try to use C++14, rely on C++11
This makes it possible to use C++11 features. Choosing C++14 when available
gives us advance warning when something might break under C++14. Test builds
on a system with only C++11 and another with C++14 are needed to ensure that
both really works.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 30d08dd5..4b4da576 100644 --- a/configure.ac +++ b/configure.ac @@ -62,6 +62,14 @@ dnl check for programs. AC_PROG_CXX AC_PROG_MAKE_SET +dnl Use the most recent C++ standard that is supported by the code. +dnl We can fall back to older versions, but not below C++11. +dnl Akonadi/Qt don't work with C++17 yet, so we can't enable that. +AX_CXX_COMPILE_STDCXX_14(noext, optional) +if test "$HAVE_CXX14" -ne 1; then + AX_CXX_COMPILE_STDCXX_11(noext, mandatory) +fi + # Boost headers: boost/foreach.hpp is needed (1.33/Debian Etch # doesn't have it, 1.34/Ubuntu 8.10 Hardy does). 1.35 is available # as Debian Etch backport. |