[ptxdist] Request for comments: CROSS_LIB_DIR handling etc.

[Christian Melki <christian.melki@t2data.com>]

Hello.

I've been correcting various hardcoded paths in ptxdist packages and 
whatnot lately. This started with ptxdist not coping well with 
toolchains that adhere to the ABI path for various architectures.

Yesterday, I dug into the problem that on x86_64 (/lib64), all .pc.in -> 
.pc file transformations looked broken with hardcoded paths. At first I 
thought it had something to do with autoconf or pkg-config but after a 
while I found this.

scripts/lib/ptxd_make_world_install_mangle_pc.awk

Which after a while made me realize that there is still a lot of code in 
ptxdist core stuff that assumes that lib-paths are only /lib and nothing 
else.

So. I'm presenting a two options here.

1. Fix all ptxdist core stuff, because really, ptxdist should be more 
flexible than hardcoded paths. Esp. for libs.

2. Split ptxd_get_lib_dir, because, ld.so path should not be assumed to 
be the same as main library install path. So ptxd_get_ld_lib_dir which 
does what it does today and install ld there and ptxd_get_lib_dir = /lib 
and be done with all the userspace library transformations.

So. Number one probably requires a lot of more work and a lot of 
headache. Number two should be rather straightforward, atleast in theory.

Any thoughts?

/Christian

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