#5337: mkRtsOptionsLevelObj should respect -optc standard headers
-------------------------------+--------------------------------------------
Reporter: gnezdo | Owner: igloo
Type: bug | Status: patch
Priority: normal | Milestone:
Component: Compiler | Version: 7.0.4
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Linux | Blocking:
Architecture: x86_64 (amd64) | Failure: None/Unknown
-------------------------------+--------------------------------------------
Changes (by igloo):
* owner: => igloo
Old description:
> Our fancy compilation environment does not keep the standard C headers
> always in the same place. We always invoke gcc with --sysroot. Then we
> pass the same flag to ghc with -optc--sysroot=blah.
>
> This works most of the time until I also do ghc -rtsopts. In that case
> GHC will try to build a small generated object file with a limited
> command line that fails to include -optc flags. That leads to failure:
>
> *** C Compiler:
> gcc -c /tmp/ghc15472_0/ghc15472_0.c -o /tmp/ghc15472_0/ghc15472_0.o
> -Ilib/ghc-7.0.4/include -fno-stack-protector
>
> In file included from /tmp/ghc15472_0/ghc15472_0.c:1:0:
>
> In file included from lib/ghc-7.0.4/include/Rts.h:23:0:
>
> lib/ghc-7.0.4/include/Stg.h:62:10:
> fatal error: 'math.h' file not found
> #include <math.h>
> ^
> 1 error generated.
>
> This seems trivially easy to fix with the attached patch.
New description:
Our fancy compilation environment does not keep the standard C headers
always in the same place. We always invoke gcc with --sysroot. Then we
pass the same flag to ghc with -optc--sysroot=blah.
This works most of the time until I also do ghc -rtsopts. In that case GHC
will try to build a small generated object file with a limited command
line that fails to include -optc flags. That leads to failure:
{{{
*** C Compiler:
gcc -c /tmp/ghc15472_0/ghc15472_0.c -o /tmp/ghc15472_0/ghc15472_0.o
-Ilib/ghc-7.0.4/include -fno-stack-protector
In file included from /tmp/ghc15472_0/ghc15472_0.c:1:0:
In file included from lib/ghc-7.0.4/include/Rts.h:23:0:
lib/ghc-7.0.4/include/Stg.h:62:10:
fatal error: 'math.h' file not found
#include <math.h>
^
1 error generated.
}}}
This seems trivially easy to fix with the attached patch.
--
Comment:
Thanks, I'll take a look.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5337#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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