I am building ffmpeg using MSYS2 in windows system.
My compilation package is "i686-8.1.0-release-posix-dwarf" of mingw.
My configure option parameters are as follows:
./configure --prefix="D:\fkit\b" --disable-static --enable-shared --enable-libx264 --enable-gpl --enable-version3 --enable-nonfree --enable-ffserver --enable-ffplay --disable-debug --disable-iconv --disable-zlib --extra-ldflags="-LD:\fkit\xb\lib -lx264" --extra-cflags="-ID:\ fkit\xb\include" --pkgconfigdir="D:\fkit\xb\lib\pkgconfig"
As you can see, "D:fkit\xb" is my libx264 installation directory. I configured --extra-cflags and --extra-ldflags, and the configure script executed fine. But when I execute mingw32-make.exe, it prompts "libavcodec/libx264.c:36:10: fatal error: x264.h: No such file or directory"
I don't have any ideas because everything I do seems normal.