Merge branch 'makefile-fix-cpx-exactspx' into 'v100-bugfix'

fix that LPSEXACT=spx was overriding LPSLDFLAGS and LPSLIBFILES instead of appending

See merge request integer/scip!4097

Author: svigerske

make/make.project

@@ -495,10 +495,12 @@ endif
 endif
 
 #-------------------------------------------------------
-# add flags for exact SoPlex
+# add flags for exact SoPlex, if there were not added due to LPS=spx already
 ifeq ($(LPSEXACT),spx)
-LPSLDFLAGS	=	$(LINKCXX_L)$(SCIPREALPATH)/$(LIBDIR)/$(LIBEXTTYPE) $(LINKCXX_l)soplex.$(OSTYPE).$(ARCH).$(COMP).$(LPSOPT)$(LINKLIBSUFFIX)
-LPSLIBFILES	=	$(SCIPREALPATH)/$(LIBDIR)/$(LIBEXTTYPE)/libsoplex.$(OSTYPE).$(ARCH).$(COMP).$(LIBEXTEXT)
+ifneq ($(LPS),spx)
+LPSLDFLAGS	+=	$(LINKCXX_L)$(SCIPREALPATH)/$(LIBDIR)/$(LIBEXTTYPE) $(LINKCXX_l)soplex.$(OSTYPE).$(ARCH).$(COMP).$(LPSOPT)$(LINKLIBSUFFIX)
+LPSLIBFILES	+=	$(SCIPREALPATH)/$(LIBDIR)/$(LIBEXTTYPE)/libsoplex.$(OSTYPE).$(ARCH).$(COMP).$(LIBEXTEXT)
+endif
 endif
 
 #-------------------------------------------------------