diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index a177aad..8d0e0ed 100644 --- a/configure.ac +++ b/configure.ac @@ -218,6 +218,20 @@ int pipefd[2]; AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no])]) +AC_MSG_CHECKING([whether FD_ISSET() argument is const]) +AC_LANG_PUSH(C++) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/select.h> +class T { +public: + fd_set fds; + bool Fun( void ) const { return FD_ISSET( 0, &fds ); } };]], +[[T x; return x.Fun();]])], + [AC_DEFINE([FD_ISSET_IS_CONST], [1], + [Define if FD_ISSET() fd_set argument is const.]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) +AC_LANG_POP(C++) + AC_CHECK_DECLS([__builtin_bswap64, __builtin_ctz]) AC_CHECK_DECL([mach_absolute_time], |