Fixes three issues:
 - so's should not be linked to -ljvm as dlopen(/abs/name) is
   used by the launcher to load libjvm.so; it is thus not available
   (musl/uclibc) ld.so to satisfy NEEDED dependency inserted by
   -ljvm. Fix to not link against -ljvm, and disable -z defs so
   undefined symbols are allowed in sos
 - the previous makes ldd generate errors on unresolved symbols (musl)
   remove it altogether as it's used for informative purposes only
   (display things - not check anything useful)
 - Don't delete the generated directory $(GENCSEXT), this can
   confuse make in highly parallel builds with:
   make[6]: *** INTERNAL: readdir: No such file or directory.  Stop.               
   make[6]: Leaving directory '.../openjdk-boot/jdk/make/sun/nio/cs'     

--- openjdk.orig/jdk/make/common/Defs-linux.gmk
+++ openjdk/jdk/make/common/Defs-linux.gmk
@@ -350,7 +350,7 @@
 
 EXTRA_LIBS += -lc
 
-LDFLAGS_DEFS_OPTION  = -Xlinker -z -Xlinker defs
+LDFLAGS_DEFS_OPTION  =
 LDFLAGS_COMMON  += $(LDFLAGS_DEFS_OPTION)
 
 #
@@ -407,7 +407,7 @@
 # the library itself should not.
 #
 VM_NAME         = server
-JVMLIB          = -L$(LIBDIR)/$(LIBARCH)/$(VM_NAME) -ljvm
+JVMLIB          =
 JAVALIB         = -ljava $(JVMLIB)
 
 #
--- openjdk.orig/jdk/make/sun/nio/cs/Makefile
+++ openjdk/jdk/make/sun/nio/cs/Makefile
@@ -107,7 +107,7 @@
 		$(GENCSDATASRC)/DoubleByte-X.java.template \
 		$(GENCSDATASRC)/extsbcs $(GENCSDATASRC)/dbcs
 	@$(prep-target)
-	$(RM) -r $(GENCSEXT)
+	$(RM) -f "$(GENCSEXT)"/*
 	$(MKDIR) -p $(GENCSEXT)
 	$(BOOT_JAVA_CMD) -jar $(CHARSETMAPPING_JARFILE)	$(GENCSDATASRC) $(GENCSEXT) extsbcs
 	$(BOOT_JAVA_CMD) -jar $(CHARSETMAPPING_JARFILE) $(GENCSDATASRC) $(GENCSEXT) euctw \
--- openjdk.orig/jdk/make/common/shared/Defs-linux.gmk
+++ openjdk/jdk/make/common/shared/Defs-linux.gmk
@@ -207,8 +207,6 @@
   if [ "`$(NM) -D -g --defined-only $1 | $(EGREP) 'SUNWprivate'`" = "" ] ; then \
     $(ECHO) "$(MAPFILE_WARNING): File was not built with a mapfile: $1"; \
   fi && \
-  $(ECHO) "Library loads for: $1" && \
-  $(LDD) $1 && \
   $(ECHO) "RUNPATH for: $1" && \
   ( $(READELF) -d $1 | $(EGREP) 'NEEDED|RUNPATH|RPATH' ) \
 )