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ghc: enable static RTS

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This change allows loading statically compiled libreries into a running
GHC, thus fixing the build of haskell packages that use TemplateHaskell.
See [1] for the details.

Fixes issue #61575, #124284.

[1]: https://www.tweag.io/blog/2020-09-30-bazel-static-haskell/
This commit is contained in:
rnhmjoj 2022-03-01 22:20:11 +01:00 committed by sterni
parent 0da85d3f77
commit 4884fcc0d2
2 changed files with 16 additions and 8 deletions
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12
pkgs/development/compilers/ghc/9.0.2.nix
View file

@ -33,7 +33,7 @@
, # Whether to build dynamic libs for the standard library (on the target
# platform). Static libs are always built.
enableShared ? !stdenv.targetPlatform.isWindows && !stdenv.targetPlatform.useiOSPrebuilt
enableShared ? with stdenv.targetPlatform; !isWindows && !useiOSPrebuilt && !isStatic
, # Whether to build terminfo.
enableTerminfo ? !stdenv.targetPlatform.isWindows
@ -105,9 +105,13 @@ let
CrossCompilePrefix = ${targetPrefix}
'' + lib.optionalString (!enableProfiledLibs) ''
GhcLibWays = "v dyn"
'' + lib.optionalString enableRelocatedStaticLibs ''
GhcLibHcOpts += -fPIC
GhcRtsHcOpts += -fPIC
'' +
# -fexternal-dynamic-refs apparently (because it's not clear from the documentation)
# makes the GHC RTS able to load static libraries, which may be needed for TemplateHaskell.
# This solution was described in https://www.tweag.io/blog/2020-09-30-bazel-static-haskell
lib.optionalString enableRelocatedStaticLibs ''
GhcLibHcOpts += -fPIC -fexternal-dynamic-refs
GhcRtsHcOpts += -fPIC -fexternal-dynamic-refs
'' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
EXTRA_CC_OPTS += -std=gnu99
'';

12
pkgs/development/compilers/ghc/9.2.2.nix
View file

@ -34,7 +34,7 @@
, # Whether to build dynamic libs for the standard library (on the target
# platform). Static libs are always built.
enableShared ? !stdenv.targetPlatform.isWindows && !stdenv.targetPlatform.useiOSPrebuilt
enableShared ? with stdenv.targetPlatform; !isWindows && !useiOSPrebuilt && !isStatic
, # Whether to build terminfo.
enableTerminfo ? !stdenv.targetPlatform.isWindows
@ -106,9 +106,13 @@ let
CrossCompilePrefix = ${targetPrefix}
'' + lib.optionalString (!enableProfiledLibs) ''
GhcLibWays = "v dyn"
'' + lib.optionalString enableRelocatedStaticLibs ''
GhcLibHcOpts += -fPIC
GhcRtsHcOpts += -fPIC
'' +
# -fexternal-dynamic-refs apparently (because it's not clear from the documentation)
# makes the GHC RTS able to load static libraries, which may be needed for TemplateHaskell.
# This solution was described in https://www.tweag.io/blog/2020-09-30-bazel-static-haskell
lib.optionalString enableRelocatedStaticLibs ''
GhcLibHcOpts += -fPIC -fexternal-dynamic-refs
GhcRtsHcOpts += -fPIC -fexternal-dynamic-refs
'' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
EXTRA_CC_OPTS += -std=gnu99
'';