missing syslimits.h in canadian cross-toolchains

[Mike Frysinger <vapier at gentoo dot org>]

anyone noticed an issue with gcc not installing the internal syslimits.h 
header file when doing a cross-canadian build ?  the crosstool script doesnt 
seem to have anything to deal wtih this and the uClibc buildroot project has 
a workaround where it simply copies syslimits.h from the staging dir to the 
correct target dir ...

i looked through the gcc-3.4.4 build system and found this:
 - gcc/Makefile.in will install syslimits.h only if fixincludes support is 
enabled (see the stmp-fixinc and install-mkheaders make targets)
 - gcc/configure.ac disables fixincludes support if and only if $build != 
$host and the --with-sysroot option was not specified ...

so it seems like the special handling of syslimits.h which exists now in 
gcc/Makefile.in should be broken off from the fixincludes logic and always 
utilized (if that is possible ...) ?
-mike

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