On Thu, Nov 28, 2013 at 04:05:18PM +0100, Thomas Baag wrote:
> Hi folks,
>
> i'm trying to cross compile a simple hello world on Scientific Linux 6.4
> (amd64) using cmake version 2.8.4 and arm-none-eabi-gcc 4.8.1. I've
> encountered the well known "-rdynamic" problem[1], but couldn't manage to
> apply a nice workaround.
>
> I DONT want to disable simple compiler checks. The problem seems to be in the
> "__linux_compiler_gnu" macro in "Modules/Platform/Linux-GNU.cmake".
>
> Until now i tried
> SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
> SET(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
> before and after "PROJECT(...)", but it didn't work.
> After that, I added this on top of my CMakeList.txt:
> SET(__LINUX_COMPILER_GNU 1)
> MACRO(__linux_compiler_gnu lang)
> SET(CMAKE_SHARED_LIBRARY_LINK_${lang}_FLAGS "")
> ENDMACRO()
> But it also didnt work.
>
> Now i'm somehow out of ideas. Could anyone pls help?
>
>
> Greetings
> Thomas
>
> [1] http://www.cmake.org/Bug/view.php?id=9985
>
>
> ================
> # Minimal CMakeList.txt:
> CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
>
> SET(__LINUX_COMPILER_GNU 1)
> MACRO(__linux_compiler_gnu lang)
> SET(CMAKE_SHARED_LIBRARY_LINK_${lang}_FLAGS "")
> ENDMACRO()
>
> PROJECT(Build-Example)
>
> ================
> # Minimal toolchain file:
> SET(CMAKE_SYSTEM_NAME Linux)
> SET(CMAKE_SYSTEM_PROCESSOR "armv7")
> SET(CMAKE_C_COMPILER arm-none-eabi-gcc)
The only way I found around this was
set(CMAKE_SYSTEM_NAME Generic )
but I think that is exactly what you want to avoid given your comment
about "I DONT want to disable simple compiler checks."
/M
--
Magnus Therning OpenPGP: 0xAB4DFBA4
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twitter: magthe http://therning.org/magnus
Unix is the answer, but only if you phrase the question very
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