#9475: Building ffmpeg libraries for Windows : libxml2 not found -------------------------------------+------------------------------------- Reporter: Thomas | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Hello, I have spent the last 3 days trying to build the ffmpeg 4.4 libraries (avcodec.dll, avutil.dll, ...) for Windows. I want to be able to build them for Windows 32 bits and for Windows 64 bits. I want to build them with the maximum of libs included in it but I want to stay within the LGPL license. In particular, I want the libs to be able to decode AV1 and demux MPEG- DASH. In msys 1 and in msys 2 (I tried both), I have used this command line: {{{ ./configure --target-os=win64 --arch=x86_64 --toolchain=msvc --enable- shared --enable-demuxer=dash }}} But I get this error message: WARNING: Disabled dash_demuxer because not all dependencies are satisfied: libxml2 I have tried many things to install libxml2. In msys 1.0, I have added the package "msys-libxml2-dev" In msys 2.0, I have tried to install libxml2 like this: pacman -Sy mingw-w64-x86_64-libxml2 In have also seen a file called libxml-2.0.pc in /mingw64/lib/pkgconfig/ so I have copied it as libxml2.pc: cp /mingw64/lib/pkgconfig/libxml-2.0.pc /mingw64/lib/pkgconfig/libxml2.pc but none of these attempts worked. I keep having this error: WARNING: Disabled dash_demuxer because not all dependencies are satisfied: libxml2 I have also tried to build these libraries under Debian 9.8 But under Debian, when I use the command {{{ ./configure --target-os=win64 --arch=x86_64 --toolchain=msvc --enable- shared --enable-demuxer=dash --enable-cross-compile }}} I get the error: lib.exe not found. I think that the scripts expects to find the MSVC compiler/linker and since we are now on Debian, they don't exist. I have tried to remplace the "--target-os=win64" option by "--target- os=mingw32" like this: {{{ ./configure --target-os=mingw32 --arch=x86_64 --toolchain=msvc --enable- shared --enable-demuxer=dash --enable-cross-compile }}} But it does not work either? So, could someone please help me to build these 32-bit and 64-bit libraries for Windows ? I can do it under Windows or under Linux. Thanks in advance! -- Ticket URL: <https://trac.ffmpeg.org/ticket/9475> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker