[tlbuild] always static libstdc++?

[Ken Brown]

On 8/31/2018 2:07 PM, Karl Berry wrote:
> Hi TL builders - do any of your platforms *not* require the
> KPSE_CXX_HACK to statically link the C++ runtime for the native TL
> binaries? Specifically, in the output from configure, these lines:
> 
> checking for statically linking C++ runtime library... ok
> configure: using -nodefaultlibs -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic -lm -lgcc_eh -lgcc -lc -lgcc_eh -lgcc
> 
> If the correct arguments can't be determined, it says "not supported"
> instead of "ok".
> 
> and also in the configure summary at the end:
>     enable_cxx_runtime_hack:      yes
> 
> If this is always needed for our native TL binaries, I'm going to change
> the Autoconf macro that checks for it to abort if
> --enable-native-texlive-build is given and the necessary options aren't
> discovered. (Having just wasted some time trying to figure out why my
> binaries were no longer statically linked and not noticing that crucial
> configure line ...)

Hi Karl,

Your proposed change is fine for Cygwin.

Ken