[fpc-pascal] build case-sensetive issue

[dmitry boyarintsev]

hello,

i've been rebuilding svn version of fpc i386-linux.
i'm building RTL using 'make all install INSTALL_PREFIX=mypath'
mypath is located on a Fat32 disk (flash drive).

All compiled unit files (.o, .ppu) are copied fine, expect for
'Syscall.o' and 'UnixUtil.o'.
they are compiled and present at RTL/units/i386-linux/ directroy, but
has not been copied by make script.
After copying and renaming them to lower case everything works.

I guess the error is caused by mixing case-sensetive OS and
case-insensetive file system (FAT32)
Please fix make script to be more case-(in)sensetive?!

thanks,
dmitry