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Detect if char equals int8_t

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Chun Kuan Lee
2018-07-01 13:58:37 +00:00
parent 686e97a0c7
commit 49d1f4cdde
2 changed files with 12 additions and 0 deletions
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8
configure.ac
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@@ -808,6 +808,14 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
[ AC_MSG_RESULT(no)]
)
AC_MSG_CHECKING(for if type char equals int8_t)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h>
#include <type_traits>]],
[[ static_assert(std::is_same<int8_t, char>::value, ""); ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(CHAR_EQUALS_INT8, 1,[Define this symbol if type char equals int8_t]) ],
[ AC_MSG_RESULT(no)]
)
# Check for reduced exports
if test x$use_reduce_exports = xyes; then
AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],[RE_CXXFLAGS="-fvisibility=hidden"],