Let's give a cmake try to build per tools

[Sashan]

The change also removes usused variables I've found occasionally.

To build performance tools on windows we must add missing pieces:
    - getopt()
    - basename()
    - strcasecmp()
all thos implementations are homebrewed

Let cmake to determine openssl version we use to build tools.

In order to tell CMake which OpenSSL version to use we use
env. variabe OPENSSL_ROOT_DIR which points to OpenSSL installation
prefix with desired version.

We build evp_fetch and providerdoall test tools for OpenSSL 3.*.
We don't build those for 1.1.1.

CMake seems to work fine on windows and OpenBSD.

The OpenBSD binaries produced by build process use RPATH. There is no
such thing on Windows. On windows you need to add your OPENSSL_ROOT_DIR\bin
to your PATH. Otherwise the .exe file produced by build process won't work.

[nhorman]

the changes look reasonable, but you have a fixup as your first commit, not sure that will autosquash properly

[Sashan]

I've just force pushed repository with squashed changes.

bonus: it builds on MacOS too. Gave a try 1.1.1, 3.0 3.3 and 3.4-dev everything worked fine.

[levitte]

I did a bit of hacking, and a much bigger instruction comment in source/CMakeLists.txt. Mind of I simply push a fixup commit into this PR?

[levitte]

This got me to test the OpenSSLConfig.cmake we produce for using an OpenSSL build without installing it, and oh boy, I found a bug (fixed in openssl/openssl#24918)

[Sashan]

I did a bit of hacking, and a much bigger instruction comment in source/CMakeLists.txt. Mind of I simply push a fixup commit into this PR?

please, go ahead and push your changes in.

[levitte]

Done. Don't forget to pull...

[levitte]

BTW, if you want to see what's actually happening when building:

$ cmake --build ./build --verbose

[Sashan]

update CMakeList.txt so it can build evp_setpeer which has just landed to repository.
I'm also doing a minor tweak to evp_setpeer.c to fix build on windows.

[Sashan]

@levitte it would be nice to have those changes in so everyone can build tools on windows. thanks.

[levitte]

@levitte it would be nice to have those changes in so everyone can build tools on windows. thanks.

I agree. Might I encourage you to nudge others to review them?

[t8m]

ping @openssl/committers for second review

[levitte]

I pushed a fixup just now, changing CMakeLists.txt a little bit.

This moves all the dependencies on OpenSSL to the perf library, and also declares its public include directory.

With that, all executables only need to depend on the perf library, and the magic of CMake will take care of the rest.

[Sashan]

please hold your new approvals/merging the cmake does not work on windows yet.
this is the error I get when I try to build it

C:\Users\OpenSSL\work.openssl\perftools\source>cmake --build build-master-one
ninja: error: build.ninja:54: bad $-escape (literal $ must be written as $$)
  INCLUDES = -IC:\Users\OpenSSL\work.openssl\perftools\source\$(PROJECT_...
                                                              ^ near here

not sure if it is glitch in cmake or ninja on windows, this is triggered by addition of target_sources() I'm still investigating the issue. will continue on Sunday evening.