[tlbuild] TeX Live builds -- second summary

[Ken Brown]

On 5/1/2009 7:51 PM, Angelo Graziosi wrote:
> Ken Brown ha scritto:
> 
>> Your mail arrived while I was composing a message with a different 
>> solution:  Build --with-system-zlib.
> 
> Indeed. But if I remember correctly, the TL guys want the executable 
> linked *with* TL libs not those of the host system.

Well, the xetex build links with the host system's libfontconfig, so it 
would seem natural to live with the consequences of that.  Moreover, the 
zlib in the TL source tree seems to be the plain vanilla upstream 
source, which hasn't changed in four years, and the same is true of 
cygwin's zlib; so this seems harmless to me.  But I'll do whatever Peter 
et al say is best.

As to the need for -DU_STATIC_IMPLEMENTATION, I noticed that the build 
of the icu libraries uses this flag automatically, as a result of the 
following in libs/icu/icu-xetex/config/mh-cygwin:

## Flags to create/use a static library
ifneq ($(ENABLE_SHARED),YES)
## Make sure that the static libraries can be built and used
CPPFLAGS += -DU_STATIC_IMPLEMENTATION
else
## Make sure that the static libraries can be built
STATICCPPFLAGS = -DU_STATIC_IMPLEMENTATION
endif

Presumably the build system for xetex could similarly figure out the 
need for this flag.

All of this can wait until Peter is ready.  At least we know now that 
the build can be made to work.

Ken