6960394: Stop linking with -lnsl on Linux

Define LIBNSL (like LIBSOCKET), non-empty only on Solaris

Reviewed-by: ohair

jdk/make/common/Defs-linux.gmk

@@ -311,6 +311,7 @@ override LIBCXX                  = -lstdc++
 endif
 override LIBPOSIX4               =
 override LIBSOCKET               =
+override LIBNSL                  =
 override LIBTHREAD               =
 override MOOT_PRIORITIES         = true
 override NO_INTERRUPTIBLE_IO     = true

jdk/make/common/Defs-solaris.gmk

@@ -658,6 +658,9 @@ LIBM = /usr/lib$(ISA_DIR)/libm.so.1
 # Socket library
 LIBSOCKET = -lsocket
 
+# Network Services library
+LIBNSL = -lnsl
+
 # GLOBAL_KPIC: If set means all libraries are PIC, position independent code
 #    EXCEPT for select compiles
 #    If a .o file is compiled non-PIC then it should be forced

jdk/make/java/hpi/hpi_common.gmk

@@ -86,5 +86,5 @@ endif
 # Things that must be linked in.
 #
 ifneq ($(PLATFORM), windows)
-OTHER_LDLIBS += $(LIBSOCKET) -lnsl $(LIBM) -ldl
+OTHER_LDLIBS += $(LIBSOCKET) $(LIBNSL) $(LIBM) -ldl
 endif

jdk/make/java/java/Makefile

@@ -204,7 +204,7 @@ ifeq ($(PLATFORM),windows)
 OTHER_LDLIBS += $(JVMLIB) -libpath:$(OBJDIR)/../../../fdlibm/$(OBJDIRNAME) fdlibm.lib \
 		       -libpath:$(OBJDIR)/../../../verify/$(OBJDIRNAME) verify.lib
 else
-OTHER_LDLIBS += $(JVMLIB) -lverify $(LIBSOCKET) -lnsl -ldl \
+OTHER_LDLIBS += $(JVMLIB) -lverify $(LIBSOCKET) $(LIBNSL) -ldl \
 		-L$(OBJDIR)/../../../fdlibm/$(OBJDIRNAME) -lfdlibm.$(ARCH)
 endif
 

jdk/make/java/java_hprof_demo/Makefile

@@ -84,7 +84,7 @@ OTHER_INCLUDES = -I$(SRCDIR) \
 ifeq ($(PLATFORM), windows)
   OTHER_LDLIBS += wsock32.lib winmm.lib
 else
-  OTHER_LDLIBS += $(LIBSOCKET) -lnsl -ldl
+  OTHER_LDLIBS += $(LIBSOCKET) $(LIBNSL) -ldl
 endif
 
 #

jdk/make/java/net/Makefile

@@ -96,7 +96,7 @@ include $(BUILDDIR)/common/Library.gmk
 ifeq ($(PLATFORM), windows)
   OTHER_LDLIBS = ws2_32.lib $(JVMLIB)
 else
-  OTHER_LDLIBS = $(LIBSOCKET) -lnsl -ldl $(JVMLIB)
+  OTHER_LDLIBS = $(LIBSOCKET) $(LIBNSL) -ldl $(JVMLIB)
 endif
 ifeq ($(PLATFORM), linux)
   OTHER_LDLIBS += -lpthread

jdk/make/jpda/transport/socket/Makefile

@@ -38,11 +38,11 @@ FILES_m = mapfile-vers
 include $(BUILDDIR)/common/Defs.gmk
 
 ifeq ($(PLATFORM), linux)
-  OTHER_LDLIBS += -lnsl $(LIBSOCKET) -lpthread
+  OTHER_LDLIBS += $(LIBNSL) $(LIBSOCKET) -lpthread
 endif
 
 ifeq ($(PLATFORM), solaris)
-  OTHER_LDLIBS += -lnsl $(LIBSOCKET)
+  OTHER_LDLIBS += $(LIBNSL) $(LIBSOCKET)
 endif
 
 ifeq ($(PLATFORM), windows)

jdk/make/mkdemo/jvmti/hprof/Makefile

@@ -39,10 +39,10 @@ ifeq ($(PLATFORM), windows)
   EXTRA_LIBS += wsock32.lib winmm.lib
 endif
 ifeq ($(PLATFORM), solaris)
-  OTHER_LDLIBS += $(LIBSOCKET) -lnsl -ldl
+  OTHER_LDLIBS += $(LIBSOCKET) $(LIBNSL) -ldl
 endif
 ifeq ($(PLATFORM), linux)
-  OTHER_LDLIBS += $(LIBSOCKET) -lnsl -ldl -lpthread
+  OTHER_LDLIBS += $(LIBSOCKET) $(LIBNSL) -ldl -lpthread
 endif
 
 #

jdk/src/share/demo/jvmti/hprof/sample.makefile.txt

@@ -132,7 +132,7 @@ ifeq ($(OSNAME), linux)
     LIBRARY=lib$(LIBNAME).so
     LDFLAGS=-Wl,-soname=$(LIBRARY) -static-libgcc -mimpure-text
     # Libraries we are dependent on
-    LIBRARIES= -lnsl -ldl -lc
+    LIBRARIES= -ldl -lc
     # Building a shared library
     LINK_SHARED=$(LINK.c) -shared -o $@
 endif