[poco] fix pcre linking against pcred on release

[angelmixu]

Latest version of poco was linking on releas against the debug binary of pcre.
So, PocoFoundation.dll was looking for pcred.dll.

[NancyLi1013]

Hi @angelmixu , here are the test results from the current CI system, please let me know if you need the logs.

x64-osx	master	test	notes
poco	Pass	Fail	Regression

x64-linux	master	test	notes
poco	Pass	Fail	Regression

At the same time, could you also update the CONTROL version?

[angelmixu]

@NancyLi1013 hi! How strange, in my macOS was building correctly :/
Sure, if you can post the logs it would help, thanks!

[NancyLi1013]

@Rastaban , could you help provide MacOS logs?
Thanks.

[Neumann-A]

will be solved by #5543

[angelmixu]

@NancyLi1013 sorry, I just cleaned installed poco on my mac and now I can see the error!
Looks like libpcre has no 'd' suffix on macOS, in the CMakeLists.txt from pcre there's this:

IF(WIN32)
  SET(CMAKE_DEBUG_POSTFIX "d")
ENDIF(WIN32)

should I change the patch on poco for only looking for the 'd' suffix on windows, or should I change pcre for putting always a 'd' suffix on debug builds?

[Neumann-A]

I am in strong favor of not adding d suffixes if find_package does not support it! see discussion in #5543

[angelmixu]

Read it, looks quite good!
Now I don't know how to continue with this :_D

[Neumann-A]

hmm the pcre problem is a bit bigger since it is not handled equally in all ports....

[angelmixu]

@Neumann-A since your PR #5543 fixes the bug I was trying to fix, I'll close this PR.
Thanks! :)