lkml.org 
[lkml]   [2018]   [Feb]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/3] kbuild: fix host progs build with libs in non standard locations
Date
This patchset allows to build host programs that depend on external libs
installed in non standard locations (i.e. not in /usr/include, /usr/lib,
etc.). For now, the only way is to force HOSTCC to include both the
path to the host compiler and the build flags.

I have encountered this issue when building linux into the buildroot
framework. host-* versions of libs may be compiled and installed in a
host staging dir removing the need to install them on the build system.

I'm not really satisfied with the new HOST_{C,LD}FLAGS variables. They
are too similar to HOST{C,LD}FLAGS and I find them confusing. However,
HOST_EXTRA*FLAGS are already reserved for local use in makefiles (see
Documentation/kbuild/makefiles.txt). And I didn't want to have even
longer USER_HOST_*FLAGS. If someone has a better proposition, I'll
happily make a v3.

Comments are welcome.

Changes since v1:
- Fix typos.
- Do not use HOST_EXTRA*FLAGS. Add new user specifiable variables.
- Pass HOSTLDFLAGS to build single .c programs.
- Build objtool with host flags.

Robin Jarry (3):
kbuild: introduce HOST_{C,LD}FLAGS
kbuild: use HOSTLDFLAGS for single .c executables
objtool: use global host flags for compilation

Documentation/admin-guide/README.rst | 16 ++++++++++++++++
Makefile | 9 +++++----
scripts/Makefile.host | 2 +-
tools/objtool/Makefile | 4 ++--
4 files changed, 24 insertions(+), 7 deletions(-)

--
2.11.0

\
 
 \ /
  Last update: 2018-02-26 19:43    [W:0.112 / U:5.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site