[fpc-pascal] Using Cairo lib on Linux without X

Juha Manninen juha.manninen62 at gmail.com
Tue Apr 7 21:13:51 CEST 2015

FPC has the API wrapper for Cairo lib. I am studying its dependencies
and maybe use it in a Linux server with no X Window installed, for
generating PDFs.

Cairo is advertized to support multiple output devices, including X
Window, image buffers, PostScript, PDF, and SVG file output.
I understand it means that X Window is required only for the X Window backend.
PDF or SVG backends should not require X Window.

However on my Linux Mint 17 libcairo has a dependency for libX11.so.6.
See :

# ldd /usr/lib/i386-linux-gnu/libcairo.so.2
        linux-gate.so.1 =>  (0xf77a7000)
        libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0xf763b000)
        libpixman-1.so.0 => /usr/lib/i386-linux-gnu/libpixman-1.so.0
        libfontconfig.so.1 =>
/usr/lib/i386-linux-gnu/libfontconfig.so.1 (0xf7555000)
        libfreetype.so.6 => /usr/lib/i386-linux-gnu/libfreetype.so.6
        libpng12.so.0 => /lib/i386-linux-gnu/libpng12.so.0 (0xf748d000)
        libxcb-shm.so.0 => /usr/lib/i386-linux-gnu/libxcb-shm.so.0 (0xf7489000)
        libxcb-render.so.0 =>
/usr/lib/i386-linux-gnu/libxcb-render.so.0 (0xf747f000)
        libxcb.so.1 => /usr/lib/i386-linux-gnu/libxcb.so.1 (0xf745c000)
        libXrender.so.1 => /usr/lib/i386-linux-gnu/libXrender.so.1 (0xf7451000)
        libX11.so.6 => /usr/lib/i386-linux-gnu/libX11.so.6 (0xf731d000)
        libXext.so.6 => /usr/lib/i386-linux-gnu/libXext.so.6 (0xf730a000)
        libz.so.1 => /lib/i386-linux-gnu/libz.so.1 (0xf72f0000)
        librt.so.1 => /lib/i386-linux-gnu/librt.so.1 (0xf72e6000)
        libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xf72a0000)
        libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xf70f2000)
        /lib/ld-linux.so.2 (0xf77a8000)
        libexpat.so.1 => /lib/i386-linux-gnu/libexpat.so.1 (0xf70c9000)
        libXau.so.6 => /usr/lib/i386-linux-gnu/libXau.so.6 (0xf70c5000)
        libXdmcp.so.6 => /usr/lib/i386-linux-gnu/libXdmcp.so.6 (0xf70bd000)
        libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0xf70b8000)


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