link skeletons instead of copy

tests/tests-c-compiler/check-assembly.sh

@@ -93,6 +93,7 @@ all: compiled-module
 compiled-module: ${asn_module} ${abs_top_builddir}/asn1c/asn1c
 	${abs_top_builddir}/asn1c/asn1c		\\
 		-S ${abs_top_srcdir}/skeletons	\\
+		-flink-skeletons 		\\
 		-Wdebug-compiler		\\
 		${AFLAGS} ${asn_module}
 	rm -f converter-example.c

tests/tests-randomized/check-bundles.sh

@@ -237,7 +237,7 @@ asn_compile() {
     } > test.asn1
     echo "${abs_top_builddir}/asn1c/asn1c -S ${abs_top_srcdir}/skeletons"
     if "${abs_top_builddir}/asn1c/asn1c" -S "${abs_top_srcdir}/skeletons" \
-        -gen-OER -gen-PER ${asn1c_flags} test.asn1
+        -gen-OER -gen-PER ${asn1c_flags} -flink-skeletons test.asn1
     then
         echo "ASN.1 compiled OK"
     else