[Gnash-dev] configure malfunction detecting pthreads with configure

[Eric Hughes]

Folks:

I've been trying to get a cygwin compile working with gcc 3.4.4.  I kept 
getting linker errors with missing pthreads symbols.  I've tracked down one 
potential source. 'configure' is apparently getting something wrong with 
pthreads detection.  Here's the relevant section of config.log:

> configure:47947: checking whether pthreads work with -Kthread
> configure:48081: gcc -o conftest.exe -g -O2 -Kthread   -Wl,--as-needed 
> conftest.c  -lm  >&5
> gcc: unrecognized option `-Kthread'^M
> configure:48087: $? = 0
> configure:48107: result: yes

OK, I don't know how the test works, but that result is obviously wrong, 
because, in their lingo, "pthreads does not work with -Kthread".  Continuing...

> configure:48117: checking searching for pthread library
> configure:48145: checking for joinable pthread attribute
> configure:48170: gcc -o conftest.exe -g -O2 -Kthread   -Wl,--as-needed 
> conftest.c -L/lib -lpthread -lm  >&5
> gcc: unrecognized option `-Kthread'^M
> configure:48176: $? = 0
> configure:48193: result: PTHREAD_CREATE_JOINABLE

While I don't know what this result does, it seems wrong to be setting 
pthreads capabilities where none exist.

The correct flag, from what I can tell, and if one is even necessary, which 
I don't know, should be -mthreads.

Eric