Error in building linphone for iOS when enabling ffmpeg Linphone 5.2.6 clone from git Build linphone with not enabling ffmpeg - Build successfully Enabled ffmpeg and again try to build linphone for iOS Build failed as error at mediastreamer2/src/utils/ffmpeg-priv.c error: conflicting types for 'avcodec_open2' error: mediastreamer2/src/utils/ffmpeg-priv.c579: error: implicit declaration of function 'avcodec_open' is invalid in C99 [-Werror,-Wimplicit-function-declaration] return avcodec_open(avctx, (AVCodec*)codec); tried building older library...