[boost] Showstopper: Build broken on predef module

Subject: [boost] Showstopper: Build broken on predef module
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2018-04-30 14:13:01

Hi Rene,

I've needed -to update to the last boost version and I'm experimenting 
the same issue as the one reported in

https://github.com/boostorg/build/issues/299

but in my Mac.

/Users/viboes/github/m_boost/libs/predef/check/../tools/check/predef.jam:46: 
Unescaped special character in argument $(language)::$(expression)
/Users/viboes/github/m_boost/tools/build/src/build/configure.jam:288: in 
try-find-build
*** argument error
* rule log-check-result ( result )
* called with: (Â  )
* missing argument result

Do you have an idea of what is wrong?

Best,

Vicente