#5709: ghc-7.2 cannot find libraries in non-standard locations
------------------------------+---------------------------------------------
Reporter: kosmikus | Owner:
Type: bug | Status: new
Priority: normal | Component: Package system
Version: 7.2.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Other | Testcase:
Blockedby: | Blocking:
Related: |
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The following is what I perceive to be a regression from ghc-7.0.4 to
ghc-7.2.1 and ghc-7.2.2.
On NixOS, all packages are installed into separate directories in the Nix
store. With ghc-7.0.4, the following works:
{{{
$ ghc -package zlib -e "print ()"
()
$ ghc-pkg describe zlib | grep library-dirs -A 1
library-dirs: /nix/store/vnflri0w0fadiqwv1j6w6gxw00paav6a-haskell-zlib-
ghc7.0.4-0.5.3.1-profiling/lib/zlib-0.5.3.1/ghc-7.0.4
/nix/store/0jmzlnayh2p06vlgmiiyaj3xppc6l9lr-zlib-1.2.5/lib
$ strace ghc -package zlib -e "print ()" 2>&1 | grep libz.so
stat64("/nix/store/vnflri0w0fadiqwv1j6w6gxw00paav6a-haskell-zlib-
ghc7.0.4-0.5.3.1-profiling/lib/zlib-0.5.3.1/ghc-7.0.4/libz.so",
0xb5e94490) = -1 ENOENT (No such file or directory)
stat64("/nix/store/0jmzlnayh2p06vlgmiiyaj3xppc6l9lr-
zlib-1.2.5/lib/libz.so", {st_mode=S_IFREG|0555, st_size=91092, ...}) = 0
open("/nix/store/0jmzlnayh2p06vlgmiiyaj3xppc6l9lr-zlib-1.2.5/lib/libz.so",
O_RDONLY) = 7
}}}
However, if I try exactly the same with ghc-7.2.1, I get:
{{{
$ ghc -package zlib -e "print ()"
<command line>: can't load .so/.DLL for: libz.so (libz.so: cannot open
shared object file: No such file or directory)
$ ghc-pkg describe zlib | grep library-dirs -A 1
library-dirs: /nix/store/6zjd86g35dpxl5r6zrr67nnmf00qalkr-haskell-zlib-
ghc7.2.1-0.5.3.1-profiling/lib/zlib-0.5.3.1/ghc-7.2.1
/nix/store/0jmzlnayh2p06vlgmiiyaj3xppc6l9lr-zlib-1.2.5/lib
$ strace ghc -package zlib -e "print ()" 2>&1 | grep libz.so
open("/nix/store/ri2nlzb1lsi0d1y7nb8dkhzhsnyd08k4-gmp-4.3.2/lib/libz.so",
O_RDONLY) = -1 ENOENT (No such file or directory)
open("/nix/store/nmliqd429c0s4sdlbk0394zdfx86gvf9-ncurses-5.7/lib/libz.so",
O_RDONLY) = -1 ENOENT (No such file or directory)
open("/nix/store/m9p1r0p6qlaw5wy5hnwpii323la3s8j3-glibc-2.12.2/lib/libz.so",
O_RDONLY) = -1 ENOENT (No such file or directory)
open("/nix/store/m9p1r0p6qlaw5wy5hnwpii323la3s8j3-glibc-2.12.2/lib/libz.so",
O_RDONLY) = -1 ENOENT (No such file or directory)
}}}
The directories listed by strace seem to be the ones used for building GHC
itself. The directories in the package configuration file seem to be
ignored.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5709>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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