wmake/rules/linuxPPC64leGcc/linuxPPC64leGcc: Updated link options

Patch provided by Bruno Santos
Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1846

wmake/rules/linuxPPC64leGcc/linuxPPC64leGcc

+SUFFIXES += .C
+
+c++WARN     = -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof
+
+# Suppress some warnings for flex++ and CGAL
+c++LESSWARN = -Wno-old-style-cast -Wno-unused-local-typedefs -Wno-array-bounds
+
+CC          = g++ -m64 -mcpu=power8
+
+include $(RULES)/c++$(WM_COMPILE_OPTION)
+
+ptFLAGS     = -DNoRepository -ftemplate-depth-100
+
+c++FLAGS    = $(GFLAGS) $(c++WARN) $(c++OPT) $(c++DBUG) $(ptFLAGS) $(LIB_HEADER_DIRS) -fPIC
+
+Ctoo        = $(WM_SCHEDULER) $(CC) $(c++FLAGS) -c $< -o $@
+cxxtoo      = $(Ctoo)
+cctoo       = $(Ctoo)
+cpptoo      = $(Ctoo)
+
+LINK_LIBS   = $(c++DBUG)
+
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared -Xlinker --add-needed -Xlinker --no-as-needed
+LINKEXE     = $(CC) $(c++FLAGS) -Xlinker --add-needed -Xlinker --no-as-needed