Please consider using pkg-config for cryptopp

[yurivict]

https://github.com/QuantStack/xeus/blob/master/CMakeLists.txt#L58

cppcrypto dropped cmake support. There is crypto-cmake project that breaks: noloader/cryptopp-cmake#45

If the project doesn't officially support cmake, you probably shouldn't insist on expecting it.

In the FreeBSD port, I have this patch:

+FIND_PACKAGE(PkgConfig)
 find_package(nlohmann_json 3.2.0 REQUIRED)
 find_package(xtl 0.5 REQUIRED)
 find_package(cppzmq 4.3.0 REQUIRED)
-find_package(cryptopp REQUIRED)
+pkg_check_modules(cryptopp libcryptopp REQUIRED)

that works fine with cryptocpp project as it is distributed.

[SylvainCorlay]

Yeah, we dropped cmake for zeromq because is was not the standard way of building zeromq.

What I think we should do is support both in the same way cppzmq supports both cmake and pkg-config for zeromq.

[SylvainCorlay]

So can find what we did for zeromq here:

https://github.com/QuantStack/xeus/blob/master/CMakeLists.txt#L60-L67

[noloader]

My apologies for jumping in on other's bug... If you guys need immediate help them ping me at noloader, gmail account. Projects and distros get special privileges.

You are still welcomed to file bug reports if you like. I use them for change control and documentation so if you don't then I may file one on your behalf. I sometimes skip on the trivial fixes, but I file reports for the non-trivial stuff.