Fails to build during cabal install on Crunchbang, a Debian deriverative

[pagea]

Here's a dump of the build process:

...
config.status: creating include/X11_extras_config.h
configure: WARNING: unrecognized options: --with-compiler
cabal: Missing dependency on a foreign library:

• Missing header file: HsXlib.h
• Missing C library: Xrandr
  This problem can usually be solved by installing the system package that
  provides this library (you may need the "-dev" version). If the library is
  already installed but in a non-standard location then you can use the flags
  --extra-include-dirs= and --extra-lib-dirs= to specify where it is.
  cabal: Error: some packages failed to install:
  X11-1.6.0 failed during the configure step. The exception was:
  ExitFailure 1

[dmwit]

Have you installed the -dev version of Xrandr, as the error says to do?

[pagea]

Whoops. Apologies for the trivial report. Installing libxrandr-dev solved the problem.