Things needed for compiling the sources

Information for ISC Users : Things needed for compiling the sources
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## 2. Things needed for compiling the sources

gcc

  Use the highest number for x you found. Fresco will only build 2.6.3 and later. I'd tried gcc Version 2.5.8, 2.6.0, 2.6.2, 2.6.3 and 2.7.2. Current: 2.8.1

  Since 2.6.3 the current source tree should be able to compile with a little bit more Optimization: `#define DefaultCDebugFlags -O3 -fomit-frame-pointer` inside xf86site.def to overwrite the default -O2.

  With 2.7.x you must specify `#define UsePosix YES` inside xf86site.def. This is necessary to build the sources successfully. Versions prior to 2.7.0 could define it, but don't need it for a clean build.

  With 2.8.1 on Pentium CPU we can use special 586 Optimization. Try the following define inside your host.def.

                #define DefaultGcc2i386Opt	\
                          -O2 -march=pentium -mpentium -Wall -Wno-implicit-int \
                          -fno-strength-reduce
                /* default with 2.8.1, so not really needed
                   -malign-loops=2 -malign-jumps=2 -malign-functions=2
                */

libg++-2.x.x

  The needed g++ Libraries for use with g++ 2.x.x. As this is only necessary for Fresco, it isn't needed anymore since X11R6.1.

binutils

  You could use the assembler and linker the assembler is most preferred,and the linker is needed at least if you want to link libFresco.a within a Program. Don't use strip and ar/ranlib, the first generates buggy binaries when stripping (at least on my machines) and the last requires the use of ranlib after creating an archive, this is not configured. Current: 2.8.1.0.15 (Used: as, ld, ar, strip)

gnu-malloc

  Due to better memory usage we should use GNU's malloc library on systems where possible.

  Enable `#define UseGnuMalloc YES` inside xf86site.def or within the Linkkit site.def.

  Enable and set `#define GnuMallocLibrary` to your needs, if it isn't like the default `-L/usr/local/lib -lgmalloc`.

inline-math (optional)

  This is the "original" inline-math package available at your favorite Linux Mirror.

  Use `#define UseInlineMath YES` inside host.def to enable it. Please note the changes section what else to do, to use this package.

Information for ISC Users : Things needed for compiling the sources
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Next: Changes to the System Header Files