1/* Configuration parameters for stdio - Linux version. */
2
3#ifndef __G_CONFIG_H
4#define __G_CONFIG_H 1
5
6/* Define to 1 if the operating system supports mmap, 0 otherwise.
7 This function is required by POSIX but might still be unavailable,
8 for instance when the hardware lacks support for virtual memory. */
9#define _G_HAVE_MMAP 1
10
11/* Define to 1 if the operating system supports mremap, 0 otherwise.
12 This function is currently a Linux-specific extension. */
13#define _G_HAVE_MREMAP 1
14
15#endif /* bits/_G_config.h */
16

source code of glibc/sysdeps/unix/sysv/linux/_G_config.h