Use --with-included-gettext in configure

This avoids extra system library dependencies.  On OSX, "system"
includes things installed by macports et al, which users of the
binaries might not have.

Change-Id: I5c2be563eb7e76bd3a3c04aca6cc586d82783a1e
diff --git a/doit b/doit
index 0ed1f8b..7446f6c 100755
--- a/doit
+++ b/doit
@@ -202,6 +202,8 @@
 ln -sf ../mpfr-$MPFRVER mpfr
 popd
 
+COMMON_CONFIG=--with-included-gettext
+
 for ARCH in $ARCHES; do
     echo building for arch \"$ARCH\"
     if [ "$ARCH" == "arm" ]; then
@@ -221,7 +223,7 @@
         echo building binutils
         mkdir -p $BINBUILDPATH
         pushd $BINBUILDPATH
-        log ../binutils-$BINVER/configure --target=$TARGET --prefix=$INSTALLPATH --disable-werror --enable-initfini-array --enable-gold
+        log ../binutils-$BINVER/configure $COMMON_CONFIG --target=$TARGET --prefix=$INSTALLPATH --disable-werror --enable-initfini-array --enable-gold
         log $MAKE $PARALLEL
         log $MAKE install
         touch built.txt
@@ -238,7 +240,7 @@
 
         mkdir -p $GCCBUILDPATH
         pushd $GCCBUILDPATH
-        log ../gcc-$GCCVER/configure --target=$TARGET --prefix=$INSTALLPATH --enable-languages=c,c++ $ARCH_OPTIONS --disable-werror
+        log ../gcc-$GCCVER/configure $COMMON_CONFIG --target=$TARGET --prefix=$INSTALLPATH --enable-languages=c,c++ $ARCH_OPTIONS --disable-werror
         log $MAKE all-gcc $PARALLEL
         log $MAKE all-target-libgcc $PARALLEL
         log $MAKE install-gcc
@@ -256,7 +258,7 @@
         echo building gdb
         mkdir -p $GDBBUILDPATH
         pushd $GDBBUILDPATH
-        log ../gdb-$GDBVER/configure --target=$TARGET --prefix=$INSTALLPATH --disable-werror $EXTRA_TARGETS
+        log ../gdb-$GDBVER/configure $COMMON_CONFIG --target=$TARGET --prefix=$INSTALLPATH --disable-werror $EXTRA_TARGETS
         log make $PARALLEL
         log make install
         touch built.txt