Compile the same package with respect to several sets of flag states #827

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bos opened this Issue May 24, 2012 · 0 comments

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bos commented May 24, 2012

(Imported from Trac #837, reported by lemming on 2011-04-24)

Currently I have configured my cabal with --enable-library-profiling, --enable-shared, what leads to problems with the GHC-7.0.* archives that do not contain shared objects for profiling. Actually, I do not need them, but I cannot tell Cabal to omit shared objects for profiling. If I use --enable-library-profiling and --enable-shared, then all combinations of {static, dynamic} x {non-profiling, profiling} are generated.

Instead of enabling two variants by each of those 'enable' options and then generating code for all possible combinations, I would find it more useful to define sets of flags and compile modules with respect to all of these flag sets. E.g. I could write something like the following to ~/.cabal/config:

flagset: dyn
   shared: True
   optimization: True
flagset: p
   shared: False
   profiling: True
   optimization: True
   rts-options: True
flagset: dbg
   flags: debug
   optimization: True
For every module A this should generate A_dyn.o, A_p.o, A_dbg.o.

I do not know whether this problem can be solved in Cabal alone, or whether it also needs adaption of GHC.

See also:

  • #600
  • [http://hackage.haskell.org/trac/ghc/ticket/5021](http://hackage.haskell.org/trac/ghc/ticket/5021)

@ttuegel ttuegel removed the important label Apr 23, 2015

@ttuegel ttuegel added this to the _|_ milestone Apr 23, 2015

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