[Gumstix-users] makefile option for pthreads?

[Tim R. <gu...@ec...>]

hi i know i'm doing something stupid, i'm trying to compile my c++ 
project for gumstix using a makefile (for the 1st time ever) in order to 
use the cross-compile toolchain.

after squashing swathes of errors one by one, i'm now getting a weird 
one invoking posix threads:

undefined reference to `pthread_create'

even though I have put the options

CXXFLAGS += -lpthread
CXXFLAGS += -pthread

in the makefile and I can compile the project for x86-linux using

g++ -pthread foo foo.cpp

looking closely at the output from make, I see that

arm-linux-uclibcgnueabi-g++: -lpthread: linker input file unused because 
linking not done

does anyone understand this situation? Is there a way to enable threads 
in the cross compiler toolchain? thanks!

Tim