Hi Ömer,

I've replied in-line below.

On Mon, Jul 1, 2013 at 2:34 PM, Ömer Sinan Ağacan <omeragacan@gmail.com> wrote:

So I tried installing the program in a fresh cabal-dev environment
with profiling enabled, so that all dependencies would be also
installed with profiling enabled. But for some reason even after
installing with `cabal-dev install --enable-executable-profiling
-prof` I still can't run this program with `caba-dev/bin/program +RTS
-p`, it fails with 'program: the flag -p requires the program to be
built with -prof'.

Because you're installing libraries (into the cabal-dev sandbox) you'll also need to add the --enable-library-profiling flag, in addition to the --enable-executable-profiling flag. Cabal-dev could infer the former from the later, but we haven't done that (this doesn't seem to come up very often).

I don'th think the -prof flag is necessary; but if it is, then it may also be misinterpreted by cabal-dev; generally, you need to pass flags that only use a single leading "-" to cabal-dev with the --flags=... option. (eg: 'cabal-dev install --enable-library-profiling --enable-executable-profiling --flags=-prof'

This command worked for me:

$ cabal-dev install --enable-library-profiling --enable-executable-profiling

Note that you must remove the existing cabal-dev sandbox directory before running that command (or the installed dependencies that were built without library profiling can cause the build to fail.

--Rogan