Instalando o MRTG da este erro por causa do GD-lib

** Ooops, one of many bad things happened:

a) You don't have the GD library installed.
Get it from Welcome to Boutell.Com, Inc.!, compile it and
use either --with-gd-lib=DIR and --with-gd-inc=DIR to specify
its location. You might also have to use --with-z-inc,
--with-z-lib and --with-png-inc, --with-png-lib for gd
versions 1.6 and higher. Check config.log for more
information on the problem.

b) You have the GD library installed, but not the gd.h
header file. Download the source (see above) and use
--with-gd-inc=DIR to specify where the file can be found.

c) You have the library and the header file installed, but
you also have a shared GD library in the same directory.
Remove the shared library files and/or links (e.g.
libgd.so.2.0.0, libgd.so and libgd.so.2). This is especially
likely if you're using a recent (post 1.8.4) version of GD
and didn't configure it with --disable-shared.

d) You have gd library installed and also it's headers, but you are
missing libpng (and headers) or freetype (and headers)
(mrtg does not use freetype, but if your copy of gd is precompiled
against it, you have to install it ...

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>
Tudo bem... pelo que entendi... este erro acontece pq ñ tem o GD-lib...

quando fui instalar o gd-lib da este erro:

gdft.c:1403:35: fontconfig/fontconfig.h: No such file or directory
gdft.c:1466: error: syntax error before '*' token
gdft.c:1466: error: syntax error before '*' token
gdft.c: In function `find_font':
gdft.c:1468: error: `FcResult' undeclared (first use in this function)
gdft.c:1468: error: (Each undeclared identifier is reported only once
gdft.c:1468: error: for each function it appears in.)
gdft.c:1468: error: syntax error before "result"
gdft.c:1470: error: `pattern' undeclared (first use in this function)
gdft.c:1470: error: `FcMatchPattern' undeclared (first use in this function)
gdft.c:1471: error: `FcMatchFont' undeclared (first use in this function)
gdft.c:1474: error: `result' undeclared (first use in this function)
gdft.c:1474: warning: return makes pointer from integer without a cast
gdft.c: At top level:
gdft.c:1479: error: syntax error before '*' token
gdft.c: In function `find_postscript_font':
gdft.c:1481: error: `FcPattern' undeclared (first use in this function)
gdft.c:1481: error: `font' undeclared (first use in this function)
gdft.c:1484: error: `fontpattern' undeclared (first use in this function)
gdft.c:1486: error: `fontname' undeclared (first use in this function)
gdft.c:1487: error: `FcChar8' undeclared (first use in this function)
gdft.c:1487: error: `family' undeclared (first use in this function)
gdft.c:1489: error: `pattern' undeclared (first use in this function)
gdft.c:1491: error: `FC_FAMILY' undeclared (first use in this function)
gdft.c:1491: error: `FcTypeString' undeclared (first use in this function)
gdft.c:1492: error: `FC_STYLE' undeclared (first use in this function)
gdft.c:1497: error: `FcResultMatch' undeclared (first use in this function)
gdft.c: In function `font_pattern':
gdft.c:1516: error: `FcPattern' undeclared (first use in this function)
gdft.c:1516: error: `font' undeclared (first use in this function)
gdft.c:1517: error: `FcChar8' undeclared (first use in this function)
gdft.c:1517: error: `file' undeclared (first use in this function)
gdft.c:1518: error: `pattern' undeclared (first use in this function)
gdft.c:1531: error: syntax error before "FcChar8"
gdft.c:1538: error: `FC_FILE' undeclared (first use in this function)
gdft.c:1538: error: `FcResultMatch' undeclared (first use in this function)
make[2]: *** [gdft.lo] Error 1
make[2]: Leaving directory `/root/installs/MRTG/gd-2.0.35'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/root/installs/MRTG/gd-2.0.35'
make: *** [all] Error 2

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como faço para instalar esta parada???