cc/gcc: libgcc_eh.a may be required, even from the stage-1 compiler

Building uClibc with libubacktrace requires libgcc_eh.a to be available,
but gcc does not build it unless it is configured to generate shared libs.

However, libgcc_eh.a does not *require* shared libs support, as it is a
static library.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

 #!/bin/sh

 # Needed for systems without gettext

 $* -xc -o /dev/null - > /dev/null 2>&1 << EOF

 #include <libintl.h>

 int main()

 {

 	gettext("");

 	return 0;

 }

 EOF

 if [ ! "$?" -eq "0"  ]; then

 	echo -DKBUILD_NO_NLS;

 fi