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Re: problem with building gcc-cross-4.8.3 for i686-pc-gnu


From: Marek Benc
Subject: Re: problem with building gcc-cross-4.8.3 for i686-pc-gnu
Date: Sat, 31 Jan 2015 23:13:06 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.4.0

Disregard the previous mail, I figured most of it out.

The attached patch does the following:
  1.) Adds the name of the dynamic linker to gnu/packages/bootstrap.scm
2.) Adds code to gnu/package/gcc to substitute the default dynamic linker in gcc/config/arch/gnu.h for the one to be used.
  3.) Changes how the build system arguments for cross-gcc are created:
A.) They're now in a separate procedure, reflecting how it's done in vanilla guix. B.) A bug is fixed that caused the native ld.so to be picked over the target one. C.) Fixed the 'set-cross-path phase so that it also checks for hurd-related packages, and checks package existence before passing anything to the string-handling functions.

The current issue is that, when building cross-gcc, when it reaches libgomp, configure fails when trying to create a dummy binary. For some reason, the compiled cross-compiler needs --rpath to specify where shared libraries are, as without it, it can't find libmachuser.so and libhurduser.so, which causes it to fail.

--
Marek.

Attachment: hurd-branch-gcc-ld_so-fix.patch
Description: Text Data


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