Android編譯報錯error: implicit declaration of function 'major' is invalid in C99

error: implicit declaration of function 'major' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

major (statbuf.st_dev), minor (statbuf.st_dev));

在NDK目錄（android-ndk-r15c/platforms/android-26/arch-arm64/usr/include）查找了一下，定義放在了sys/sysmacros.h

android-ndk-r15c/platforms/android-26/arch-arm64/usr/include/sys/sysmacros.h

36:static __inline__ int major(dev_t _dev)

解決：

添加 #include <sys/sysmacros.h> 解決