Fixes errors like
  /build-glibc/dlfcn/glrefmain: cannot load `glreflib1.so'
in glibc regression test

--- glibc-2.2.5/dlfcn/Makefile.old	Thu Jul 24 16:30:20 2003
+++ glibc-2.2.5/dlfcn/Makefile	Thu Jul 24 17:25:01 2003
@@ -60,6 +60,8 @@
 test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
 $(test-modules): $(objpfx)%.so: $(objpfx)%.os
 	$(build-module)
+# without following rule, test-modules don't get built when cross-compiling
+tests: $(test-modules)
 
 $(objpfx)glrefmain: $(libdl)
 $(objpfx)glrefmain.out: $(objpfx)glrefmain \
--- glibc-2.2.5/elf/Makefile.old	Thu Jul 24 18:17:12 2003
+++ glibc-2.2.5/elf/Makefile	Thu Jul 24 18:18:58 2003
@@ -263,6 +263,9 @@
 test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(strip $(modules-names))))
 generated += $(addsuffix .so,$(strip $(modules-names)))
 
+# without following rule, test-modules don't get built when cross-compiling
+tests: $(test-modules)
+
 ifeq (yes,$(build-shared))
 ifeq ($(cross-compiling),no)
 tests: $(objpfx)tst-pathopt.out