diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index a3ba8ce808..579aeed49d 100644 --- a/configure.ac +++ b/configure.ac @@ -758,6 +758,39 @@ fi AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h]) +# FD_ZERO may be dependent on a declaration of memcpy, e.g. in SmartOS +# check that it fails to build without memcpy, then that it builds with +AC_MSG_CHECKING(FD_ZERO memcpy dependence) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #include <cstddef> + #if HAVE_SYS_SELECT_H + #include <sys/select.h> + #endif + ]],[[ + #if HAVE_SYS_SELECT_H + fd_set fds; + FD_ZERO(&fds); + #endif + ]])], + [ AC_MSG_RESULT(no) ], + [ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #include <cstring> + #if HAVE_SYS_SELECT_H + #include <sys/select.h> + #endif + ]], [[ + #if HAVE_SYS_SELECT_H + fd_set fds; + FD_ZERO(&fds); + #endif + ]])], + [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_CSTRING_DEPENDENT_FD_ZERO, 1, [Define this symbol if FD_ZERO is dependent of a memcpy declaration being available]) ], + [ AC_MSG_ERROR(failed with cstring include) ] + ) + ] +) + AC_CHECK_DECLS([getifaddrs, freeifaddrs],,, [#include <sys/types.h> #include <ifaddrs.h>] |