diff options
| author | Kalev Lember <klember@redhat.com> | 2021-02-08 16:36:13 +0100 |
|---|---|---|
| committer | Kalev Lember <klember@redhat.com> | 2021-02-08 17:41:51 +0100 |
| commit | f1b9302a1eba9aa277ecff74653b1e5d2ad3f45e (patch) | |
| tree | df5dae5b1ade224658a29dd954101cb119dd7b89 | |
| parent | 203e078fdf31b147312da667cb6a4674e60ffbca (diff) | |
| download | glib-wip/kalev/decltype-extern-Cplusplus.tar.gz | |
gmacros: Guard C++ code with extern "C++"wip/kalev/decltype-extern-Cplusplus
A number of C++ consumers are (incorrectly) including glib headers in an
extern "C" block, which leads to build failures such as:
/usr/include/c++/11/type_traits:56:3: error: template with C linkage
56 | template<typename _Tp, _Tp __v>
| ^~~~~~~~
We can easily escape that on the glib side by putting the C++ code in an
extern "C++" block. Which technically it's a bug on the consuming
program's side, I think it's pragmatic here to work this around on the
glib side.
| -rw-r--r-- | glib/gmacros.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/glib/gmacros.h b/glib/gmacros.h index ca1ecbd0a..404537621 100644 --- a/glib/gmacros.h +++ b/glib/gmacros.h @@ -238,7 +238,9 @@ #define glib_typeof(t) __typeof__ (t) #elif defined(__cplusplus) && __cplusplus >= 201103L /* C++11 decltype() is close enough for our usage */ +extern "C++" { #include <type_traits> +} /* extern "C++" */ #define glib_typeof(t) typename std::remove_reference<decltype (t)>::type #define glib_typeof_2_68 #endif |