2.1. Software requirements
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## 2.1. Software requirements

- POSIX system - You need a POSIX-compatible shell and POSIX-compatible system tools like grep, sed, awk, etc. in your path.

- GNU make 3.81 or later

- binutils - GNU binutils 2.11 or later is known to work.

- compiler - We mostly use gcc, the recommended versions on x86 are 2.95 and 3.4+. On PowerPC, use 4.x+. icc 10.1+ is also known to work.

- Xorg/XFree86 - recommended version is 4.3 or later. Make sure the development packages are installed, too, otherwise it won't work. You don't absolutely need X, some video output drivers work without it.

- FreeType - 2.0.9 or later is required for the OSD and subtitles

- ALSA - optional, for ALSA audio output support. At least 0.9.0rc4 is required.

- libjpeg - required for the optional JPEG video output driver

- libpng - required for the optional PNG video output driver

- directfb - optional, 0.9.13 or later required for the directfb video output driver

- lame - 3.90 or later is recommended, necessary for encoding MP3 audio with MEncoder.

- zlib - recommended, many codecs use it.

- LIVE555 Streaming Media - optional, needed for some RTSP/RTP streams

- cdparanoia - optional, for CDDA support

- libxmms - optional, for XMMS input plugin support. At least 1.2.7 is required.

- libsmb - optional, for SMB networking support

- libmad - optional, for fast integer-only MP3 decoding on FPU-less platforms

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