Can't compile ponyc on Fedora 26

[macropas]

[johndoe@devhost ponyc]$ sudo dnf install llvm make ncurses openssl pcre2 zlib
[sudo] password for johndoe:  
Package llvm-4.0.0-2.fc26.x86_64 is already installed, skipping.
Package make-1:4.2.1-2.fc26.x86_64 is already installed, skipping.
Package ncurses-6.0-8.20170212.fc26.x86_64 is already installed, skipping.
Package openssl-1:1.1.0f-4.fc26.x86_64 is already installed, skipping.
Package pcre2-10.23-8.fc26.x86_64 is already installed, skipping.
Package zlib-1.2.11-2.fc26.x86_64 is already installed, skipping.
Package zlib-1.2.11-2.fc26.i686 is already installed, skipping.
Dependencies resolved.
Nothing to do.
Complete!
[johndoe@devhost ponyc]$ cd ~/ponyc/
[johndoe@devhost ponyc]$ make
Makefile:213: *** No LLVM installation found!.  Stop.
[johndoe@devhost ponyc]$ 

[jemc]

@macropas - unfortunately, we're not yet compatible with LLVM 4.0 - that work is ongoing (see #1592).

You'll have to download an older version of LLVM (3.9 should be fine), and make sure that is available on your path. You can hit the subscribe button on #1592 if you want to be notified when that work is complete.

Thank you for your interest in Pony!

[SeanTAllen]

I'm closing this in favor of #1592.

[macropas]

unfortunately the same problem on Fedora 25 with llvm-3.9.1-3

[SeanTAllen]

@macropas if you check on line 213 of the Makefile you will see how we determine what LLVM is installed. Apparently that doesn't work for however Fedora is installing LLVM. llvm-config isn't anywhere in your PATH (nor any variation thereof). If you can figure it out and do a PR to update the install from source instructions in README.md, that would be appreciated. Feel free to open an issue specific to Fedora 25 not installing LLVM in a fashion where we are able to detect its existence.

[macropas]

@SeanTAllen I have found the solution for Fedora 25:

sudo dnf install git gcc-c++ make openssl-devel pcre2-devel zlib-devel llvm-devel ncurses-devel

[SeanTAllen]

@macropas can you open a PR that updates the "build from source" instructions to include Fedora 25?

[macropas]

@SeanTAllen
OK, I will try :)