Repository : ssh://g...@git.haskell.org/ghc
On branch : master
Link :
http://ghc.haskell.org/trac/ghc/changeset/c0f89a1b536d9cd3640803138d5f794982049cce/ghc
>---------------------------------------------------------------
commit c0f89a1b536d9cd3640803138d5f794982049cce
Author: Simon Marlow <marlo...@gmail.com>
Date: Thu Sep 26 17:10:26 2013 +0100
Add back a comment that got lost
>---------------------------------------------------------------
c0f89a1b536d9cd3640803138d5f794982049cce
compiler/main/DynFlags.hs | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs
index 071c16c..918b1ae 100644
--- a/compiler/main/DynFlags.hs
+++ b/compiler/main/DynFlags.hs
@@ -1123,6 +1123,13 @@ wayGeneralFlags _ (WayCustom {}) = []
wayGeneralFlags _ WayThreaded = []
wayGeneralFlags _ WayDebug = []
wayGeneralFlags _ WayDyn = [Opt_PIC]
+ -- We could get away without adding -fPIC when compiling the
+ -- modules of a program that is to be linked with -dynamic; the
+ -- program itself does not need to be position-independet, only
+ -- the libraries need to be. HOWEVER, GHCi links objects into a
+ -- .so before loading the .so using the system linker. Since only
+ -- PIC objects can be linked into a .so, we have to compile even
+ -- modules of the main program with -fPIC when using -dynamic.
wayGeneralFlags _ WayProf = [Opt_SccProfilingOn]
wayGeneralFlags _ WayEventLog = []
wayGeneralFlags _ WayPar = [Opt_Parallel]
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