Michel Hermier wrote:
Alan W. Irwin wrote:
It appears the 2.4.5 version of UsePkgConfig.cmake is what you need. I
therefore believe the current approach in cvs (although it works
consistently for PLplot for 2.4.5 and cvs version) is attempting the
impossible; emulate the old behaviour by using the modern macros with
post-processing to attempt to make the result _exactly_ compatible.
Therefore, I suggest the following improved proposal to take care of
these
compatibility issues exactly.
1) Copy the 2.4.5 UsePkgConfig.cmake which defines the PKGCONFIG
macro to
CVS with the only change being to add a message that it is an obsolete
macro. Then you _know_ that if the user uses UsePkgConfig.cmake they
will
automatically be compatible with what was done before.
2) Get rid of the emulated definition of the PKGCONFIG macro that is
currently in FindPkgConfig.cmake. In other words,
FindPkgConfig.cmake is
completely reserved for the new pkg-config stuff and does not try to
emulate
the old PKGCONFIG macro.
I attach a patch to current CVS that implements this proposal. It works
for PLplot.
Michel, does this patch work for you?
The patch did the trick (as expected) thought it doesn't apply cleanly
for me due to whitespace.
Anyway maybe the inclusion of the file should also be restricted by
some version compatibility checking ?
So that a project say by macro that it requires a 2.4.5 compatibility
and only warn about the deprecated helper file and/or macro, while a
macro not saying it will output a error message on deprecated file
usage, and skip the content definition ? So that it helps version
migration ?
Cheers,
Michel
Any news ? Seems not commited ?
Michel
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