Bug 1996 - pkg-config tweaks for cross-compiling
Summary: pkg-config tweaks for cross-compiling
Status: CLOSED FIXED
Alias: None
Product: Portable OpenSSH
Classification: Unclassified
Component: Build system (show other bugs)
Version: 5.9p1
Hardware: All All
: P2 enhancement
Assignee: Assigned to nobody
URL:
Keywords:
Depends on:
Blocks: V_6_1
  Show dependency tree / graph
 
Reported: 2012-04-02 20:17 AEST by Colin Watson
Modified: 2016-08-02 10:40 AEST (History)
2 users (show)

See Also:

Attachments
Allow using a cross-architecture pkg-config (1.49 KB, patch)
2012-04-02 20:17 AEST, Colin Watson 		no flags Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Colin Watson 2012-04-02 20:17:00 AEST 
Created attachment 2142 [details]
Allow using a cross-architecture pkg-config

When cross-compiling OpenSSH, it's useful to be able to use a cross pkg-config which is configured to return information for the architecture you're building for rather than the architecture you're building on.  The standard convention for this is to call it HOST-pkg-config, e.g. "arm-linux-gnueabi-pkg-config", just as is normally done for cross-compilers.  This implies that configure.ac should use AC_PATH_TOOL rather than AC_PATH_PROG.  (Compare with pkg.m4 shipped by pkg-config itself, which uses AC_PATH_TOOL.)

contrib/Makefile has a similar issue, but this file isn't generated by autoconf.  Perhaps it should be, but in the meantime a simple non-intrusive change is to make pkg-config a variable so that it can be overridden by the caller.

With these two changes, I've been able to cross-compile the Debian openssh package from x86-64 to ARM.
Comment 1 Darren Tucker 2012-05-19 15:25:38 AEST 
applied, thanks.  it will be in the next release.
Comment 2 Damien Miller 2016-08-02 10:40:51 AEST 
Close all resolved bugs after 7.3p1 release