linux - buildroot : predefs. h header 错误

Question

我正在使用 buildroot 为 Raspberry 构建操作系统。编译时出现此错误

BuildRoot/bsquask/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/include/bits/predefs.h:20:3: error: #error "Never use <bits/predefs.h> directly; include <features.h> instead."
 # error "Never use <bits/predefs.h> directly; include <features.h> instead."

网上搜了一下，some为这个头打一个补丁并修改它，他们说它有效但不适合我(我发现了很多补丁)

predefs.h

#ifndef _FEATURES_H
# error "Never use <bits/predefs.h> directly; include <features.h> instead."
#endif

#ifndef _PREDEFS_H
#define _PREDEFS_H

/* We do support the IEC 559 math functionality, real and complex, but only
   if a VFP coprocessor is present. If we don't have one, we fall back to
   software emulation and the functions won't work properly. So in general,
   we don't claim to support this functionality.  */
#if defined (__VFP_FP__) && !defined(__SOFTFP__)
#define __STDC_IEC_559__        1
#define __STDC_IEC_559_COMPLEX__    1
#endif

#endif /* predefs.h */

Answer 1

通过忽略错误来编辑文件(注释该行)

#ifndef _FEATURES_H
//# error "Never use <bits/predefs.h> directly; include <features.h> instead."
#endif

根据我的经验，这种方式对我来说效果很好