Files
mruby-mruby/include
dearblue dbd249cace Output an error if the INTPTR_MAX macro is undefined in C++
When doing `conf.enable_cxx_abi` and compiling with FreeBSD + clang or MinGW, such as `INTPTR_MAX` constant macro is not defined if `#include <stdint.h>` precedes `#include <mruby.h>`.
Currently I get a warning when I use an undefined macro, but if I don't notice it I get confused in a link error.
It can be expected that the problem will be easier to understand by making a clear error.

Adding `-Werror=undef` as a compiler flag can also result in an error, but this can be a problem if the system header file itself uses undefined macros, for example.
This patch does minimal confirmation only, but has no side effects.
2021-07-17 20:32:38 +09:00
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