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configure: Check for __int128 type support

This commit is contained in:
Martin Willi 2015-03-19 15:58:59 +01:00
parent aa9b74931f
commit 036c7b63c0
1 changed files with 11 additions and 0 deletions
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11
configure.ac
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@ -697,6 +697,17 @@ AC_COMPILE_IFELSE(
[AC_MSG_RESULT([no])]
)
AC_MSG_CHECKING([for __int128])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/types.h>]],
[[__int128 x = 0;
return x;]])],
[AC_MSG_RESULT([yes]);
AC_DEFINE([HAVE_INT128], [], [have __int128 type support])],
[AC_MSG_RESULT([no])]
)
AC_MSG_CHECKING([for GCC __sync operations])
AC_RUN_IFELSE([AC_LANG_SOURCE(
[[