diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 2f23147b..30c4559b 100644 --- a/configure.ac +++ b/configure.ac @@ -37,6 +37,10 @@ PKG_CHECK_MODULES([JSON_C], [json],, [ PKG_CHECK_MODULES([JSON_C], [json-c]) ]) +# if int64 is supported, use it +AC_CHECK_LIB(json-c, json_object_new_object,,) +AC_CHECK_FUNCS(json_object_new_int64,,) + case "${host}" in *-*-linux*) AC_DEFINE([OS_LINUX], [1], [Indicator for a Linux OS]) @@ -153,6 +157,14 @@ AC_TRY_COMPILE([ AC_MSG_RESULT(no; defined as 64) ) +# Check for __builtin_expect() +AC_MSG_CHECKING([for __builtin_expect()]) +AC_LINK_IFELSE([AC_LANG_PROGRAM(, return __builtin_expect(main != 0, 1))], + [AC_DEFINE(HAVE_BUILTIN_EXPECT, 1, + Define to 1 if compiler supports __builtin_expect) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + # check for availability of atomic operations RS_ATOMIC_OPERATIONS RS_ATOMIC_OPERATIONS_64BIT |