编译ffmpeg 'XXXX' follows non-static declaration错误解决办法

更新最新版不ffmpeg代码之后，在mingw下编译总是会莫名其妙出现一下的错误

../libavutil/libm.h:62: error: static declaration of 'lrint' follows non-static declaration
../libavutil/libm.h:69: error: static declaration of 'lrintf' follows non-static declaration
../libavutil/libm.h:76: error: static declaration of 'round' follows non-static declaration
../libavutil/libm.h:83: error: static declaration of 'roundf' follows non-static declaration

./libavutil/libm.h:90: error: static declaration of 'truncf' follows non-static declaration

解决办法在config.h搜索lrint、lrintf、round、roundf等对于的字符

#define HAVE_LLRINT 1
#define HAVE_LLRINTF 1
#define HAVE_LRINT 1
#define HAVE_LRINTF 1
#define HAVE_ROUND 1
#define HAVE_ROUNDF 1

将对于的值改为1即可