On Thu, Feb 07, 2019 at 12:00:39PM +0100, Christian Ehrhardt wrote:
> [...]
> 
> >      case "$with_dpdk" in
> >        yes)
> >          DPDK_AUTO_DISCOVER="true"
> > -        PKG_CHECK_MODULES([DPDK], [libdpdk],
> > -                          [DPDK_INCLUDE="$DPDK_CFLAGS"],
> > -                          [DPDK_INCLUDE="-I/usr/local/include/dpdk 
> > -I/usr/include/dpdk"])
> > +        PKG_CHECK_MODULES_STATIC([DPDK], [libdpdk],
> > +                                 [DPDK_INCLUDE="$DPDK_CFLAGS", 
> > DPDK_LIB="$DPDK_LIBS"],
> > +                                 [DPDK_INCLUDE="-I/usr/local/include/dpdk 
> > -I/usr/include/dpdk", DPDK_LIB="-ldpdk"])
> >          ;;
> >        *)
> >          DPDK_AUTO_DISCOVER="false"
> 
> While working fine in all my builds (and it seems on travis now) I got
> reports of the statements above creating a colon in the assignment on
> some builds - thanks James (on CC now).
> It was adding a trailing colon to the FLAGS which broke his build.
> 
> I wanted to ask the more experienced autoconf users if that makes any sense?

I don't see any colons above.  I do see commas.  They look weird to me.
In Bourne shell, spaces are used to separate assignments, not commas.  I
would remove them.

Other white space, like new-lines, works too.
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