diff options
Diffstat (limited to 'build/c_std.m4')
| -rw-r--r-- | build/c_std.m4 | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/build/c_std.m4 b/build/c_std.m4 new file mode 100644 index 00000000..f4a8b56f --- /dev/null +++ b/build/c_std.m4 @@ -0,0 +1,43 @@ +cv_c_std_time_t_is_not_int32 +## GLIBMM_CXX_HAS_NAMESPACE_STD() +## +## Test whether libstdc++ declares namespace std. For safety, +## also check whether several randomly selected STL symbols +## are available in namespace std. +## +## On success, #define GLIBMM_HAVE_NAMESPACE_STD to 1. +## +AC_DEFUN([GLIBMM_C_STD_TIME_T_IS_NOT_INT32], +[ + AC_CACHE_CHECK( + [whether time_t is not equivalent to gint32, meaning that it can be used for a method overload], + [gtkmm_cv_c_std_time_t_is_not_int32], + [ + AC_TRY_COMPILE( + [ + #include <time.h> + ],[ + typedef signed int gint32; + class Test + { + void something(gint32 val) + {} + + void something(time_t val) + {} + }; + ], + [gtkmm_cv_c_std_time_t_is_not_int32="yes"], + [gtkmm_cv_c_std_time_t_is_not_int32="no"] + ) + ]) + + if test "x${gtkmm_cv_c_std_time_t_is_not_int32}" = "xyes"; then + { + AC_DEFINE([GLIBMM_HAVE_C_STD_TIME_T_IS_NOT_INT32],[1], [Defined when time_t is not equivalent to gint32, meaning that it can be used for a method overload]) + } + fi +]) + + + |