On 19 Apr 2010, at 16:15, Tobias Giesen wrote:
This usually means that they were compiled by a previous compiler, or
that they use units which have been changed and recompiled since the
previous compilation. In that case, the compiler will ignore the
precompiled unit and try to recompile it. If it then doesn't find the
sources, you'll get an error about the unit not being found.
Yes but the sources were there. They were in the search path, but the
compiler didn't search properly. I will look into it again and if
there
are bugs, I will fix them in the FPC sources and submit the fixes.
If you have such problems in the future, compile with -vut and the
compiler will show where and what it searches, andwhy it refuses
certain units or recompiles them.
(Recompiling XYZ.pas because the checksum changed although it
didn't).
I deleted all .o and .ppu files and still this happened. I'm not
mixing
anything. The problem is that FPC sometimes doesn't like its own
units -
maybe because of different compiler switches?
In some cases, the compiler will want to immediately recompile
previously compiled units:
a) if you use a unit that has in its interface section a procedure
that is declared normally, but which is declared as "external".
Solution: declare it immediately as "external" in the interface and
remove the version in the implementation
b) if you have inline procedures in the interface of unit1 and a unit
that uses unit1 is (indirectly) used in the implementation of unit1.
Solution: compile everything with -Ur (= "create release units"; the
compiler will never try to recompile such units afterwards, except if
the interface section of a unit that it uses has been changed and this
other unit has been recompiled).
Jonas
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