build system: fix build of kconfig on Darwin
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| @@ -9,6 +9,8 @@ | |
| */ | |
| #define _XOPEN_SOURCE 700 | |
| + | /* On Darwin, this may be needed to get SIGWINCH: */ |
| + | #define _DARWIN_C_SOURCE 1 |
| #include <sys/ioctl.h> | |
| #include <sys/wait.h> | |