[lttng-dev] [PATCH liburcu 2/5] Dont link pthread on Android

[charlesbriere.flatzo@gmail.com (Charles Brière)]

Dear Thomas,

To be honest, I haven't even though about other libc. But you are right,
that is probably a better idea.

What about adding those lines to configure.ac ( modified from
configure.acfound in lttng-tools )

# Check for pthread
AC_CHECK_LIB([pthread], [pthread_create],
[AM_CONDITIONAL(LIBC_INCLUDES_PTHREAD, false)],
[AC_CHECK_LIB([c], [pthread_create],
 [AM_CONDITIONAL(LIBC_INCLUDES_PTHREAD, true)],
[AC_MSG_ERROR([Cannot find libpthread. Use [LDFLAGS]=-Ldir to specify its
location.])]
 )]
)

and changing the if in the patch to "if !LIBC_INCLUDES_PTHREAD"


Thanks for the comment,
Charles



Mathieu,

   if I am to submit a patch for that, should it be intended to replace
this one, or on top of HEAD as a Fix ?


Thanks,
Charles



On Thu, Nov 28, 2013 at 1:30 AM, Thomas Petazzoni <
thomas.petazzoni at free-electrons.com> wrote:

> Dear Charles Briere,
>
> On Wed, 27 Nov 2013 07:48:30 -0800, Charles Briere wrote:
>
> >  #Add the -version-info directly here since we are only building
> >  # library that use the version-info
> > -AM_LDFLAGS=-lpthread -version-info $(URCU_LIBRARY_VERSION)
> > +AM_LDFLAGS=-version-info $(URCU_LIBRARY_VERSION)
> > +if !TARGET_IS_ANDROID
> > +AM_LDFLAGS += -lpthread
> > +endif
>
> Instead of making that conditional on Android, wouldn't it make more
> sense to make it conditional on whether linking with pthread is
> necessary or not?
>
> I can at least think of one other C library than Bionic that has
> everything in libc instead of things split in several libraries: the
> Musl C library (http://www.musl-libc.org).
>
> Best regards,
>
> Thomas
> --
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com
>
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