[Nix-dev] statically linking gcc in Nix fails

[Armijn Hemel]

hi,

> > I'm trying to compile gcc statically in Nix. I adapted the default.nix
> > and builder.sh from the default gcc-3.4.2 in nixpkgs, but I get the
> > following error:
> > 
> > impure path `/usr/lib/crti.o' used in link
> 
> When do you get this error?  The compiler locates crti.o using the search
> path set through the -B option.  For instance,
> pkgs/build-support/gcc-wrapper/builder.sh adds `-B$glibc/lib' to the
> compiler flags.  Is that being passed?

Like this?

gcc -c -DHAVE_CONFIG_H
-B/nix/store/25953718bb7723f1d38d00a42d7afa2d-glibc-2.3.3/lib -isystem
/nix/store/25953718bb7723f1d38d00a42d7afa2d-glibc-2.3.3/include
-I. -I./../include  -W -Wall -Wtraditional -pedantic  regex.c -o
pic/regex.o; \
else true; fi

That is. But afterwards it starts building libgcc and it uses the just
built compiler, without the needed flags. How

/tmp/nix-10093-0/gcc-3.4.2/gcc/xgcc -B/tmp/nix-10093-0/gcc-3.4.2/gcc/
-B/nix/store/790cc4117e26b4522819a7836af6f903-gcc-static-3.4.2/i686-pc-linux-gnu/bin/
-B/nix/store/790cc4117e26b4522819a7836af6f903-gcc-static-3.4.2/i686-pc-linux-gnu/lib/ -isystem
/nix/store/790cc4117e26b4522819a7836af6f903-gcc-static-3.4.2/i686-pc-linux-gnu/include -isystem
/nix/store/790cc4117e26b4522819a7836af6f903-gcc-static-3.4.2/i686-pc-linux-gnu/sys-include
-O2 [...]

and glibc doesn't seem to be passed. I copied the builder.sh and
default.nix pretty much verbatim from gcc-3.4, only changed the
preConfigure (added export LDFLAGS="-static" and only build a compiler
for the C language), changed the patch so it would also use my LDFLAGS,
ripped out profiled-compiler build.

It appears that my "-static" flag is the culprit. Only -static is passed
to the linker, not the Nix stuff. Sigh, patch debugging :)

armijn

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  armijn at uulug.nl | http://www.uulug.nl/ | UULug: Utrecht Linux Users Group
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