glibc/glibc-compiled-binaries.diff

---
 config.make.in    |    1 +
 configure         |   16 +++++++++++++++-
 configure.in      |    1 +
 posix/Makefile    |    2 +-
 sunrpc/Makefile   |    2 +-
 timezone/Makefile |    2 +-
 6 files changed, 20 insertions(+), 4 deletions(-)

--- config.make.in
+++ config.make.in
@@ -90,6 +90,7 @@ add-ons = @add_ons@
 add-on-subdirs = @add_on_subdirs@
 sysdeps-add-ons = @sysdeps_add_ons@
 cross-compiling = @cross_compiling@
+compiled-binaries-can-run-on-buildhost = @compiled_binaries_can_run_on_buildhost@
 force-install = @force_install@
 
 # Build tools.
--- configure
+++ configure
@@ -590,6 +590,7 @@ ac_clean_files=
 ac_config_libobj_dir=.
 LIBOBJS=
 cross_compiling=no
+compiled_binaries_can_run_on_buildhost=yes
 subdirs=
 MFLAGS=
 MAKEFLAGS=
@@ -745,6 +746,7 @@ ac_ct_CC
 CXX
 CPP
 cross_compiling
+compiled_binaries_can_run_on_buildhost
 BUILD_CC
 OBJEXT
 ac_ct_CC
@@ -1280,6 +1282,13 @@ do
    { (exit 1); exit 1; }; }
 done
 
+# Check whether --enable-runbinaries was given.
+if test "${enable_runbinaries+set}" = set; then
+  enableval=$enable_runbinaries; compiled_binaries_can_run_on_buildhost=$enableval
+else
+  compiled_binaries_can_run_on_buildhost=yes
+fi
+
 # There might be people who depend on the old broken behavior: `$host'
 # used to hold the argument of --host etc.
 # FIXME: To remove some day.
@@ -1195,6 +1204,7 @@ if test "x$host_alias" != x; then
     If a cross compiler is detected then cross compile mode will be used." >&2
   elif test "x$build_alias" != "x$host_alias"; then
     cross_compiling=yes
+    compiled_binaries_can_run_on_buildhost=no
   fi
 fi
 
@@ -1381,6 +1391,9 @@ Optional Features:
                           VERSION
   --enable-all-warnings   enable all useful warnings gcc can issue
 
+  --enable-runbinaries    the compiled binaries should run on the buildhost because
+                          it happens to have a compatible cpu
+
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
--- configure.in
+++ configure.in
@@ -835,6 +835,7 @@ if test $host != $build; then
   AC_CHECK_PROGS(BUILD_CC, gcc cc)
 fi
 AC_SUBST(cross_compiling)
+AC_SUBST(compiled_binaries_can_run_on_buildhost)
 AC_PROG_CPP
 # We need the C++ compiler only for testing.
 AC_PROG_CXX
--- posix/Makefile
+++ posix/Makefile
@@ -301,7 +301,7 @@ $(inst_libexecdir)/getconf: $(inst_bindi
 	done < $(objpfx)getconf.speclist
 
 $(objpfx)getconf.speclist: $(objpfx)getconf
-ifeq (no,$(cross-compiling))
+ifeq (yes,$(compiled-binaries-can-run-on-buildhost))
 	LC_ALL=C GETCONF_DIR=/dev/null \
 	$(run-program-prefix) $< _POSIX_V6_WIDTH_RESTRICTED_ENVS > $@.new
 else
--- sunrpc/Makefile
+++ sunrpc/Makefile
@@ -98,7 +98,7 @@ otherlibs += $(nssobjdir)/libnss_files.a
 	     $(resolvobjdir)/libresolv.a
 endif
 
-ifeq (no,$(cross-compiling))
+ifeq (yes,$(compiled-binaries-can-run-on-buildhost))
 # We can only build this library if we can run the rpcgen we build.
 headers += $(rpcsvc:%.x=rpcsvc/%.h)
 extra-libs := librpcsvc
--- timezone/Makefile
+++ timezone/Makefile
@@ -69,7 +69,7 @@ installed-posixrules-file := $(firstword
 					 $(addprefix $(inst_zonedir)/, \
 						     $(posixrules-file)))
 
-ifeq ($(cross-compiling),no)
+ifeq (yes,$(compiled-binaries-can-run-on-buildhost))
 # Don't try to install the zoneinfo files since we can't run zic.
 install-others = $(addprefix $(inst_zonedir)/,$(zonenames) \
 					      $(zonenames:%=posix/%) \