Adjustments based on recent observations made on MinGW

MinGW now seems to be able to cope with the -rpath option in ld.
However, it's necessary to place LDFLAGS after objects, as observed
with BUILDENV-specific LDFLAGS, i.e. LDFLAGS_BUILDENV_mingw=-lregex

config.gnu.mk

@@ -145,7 +145,7 @@ MAKE_CC=	$(CC)	$(MIQ_CFLAGS)	-c $< -o $@
 MAKE_CXX=	$(CXX)	$(MIQ_CXXFLAGS)	-c $< -o $@
 MAKE_AS=	$(CC)	$(MIQ_CFLAGS)	-c $< -o $@
 MAKE_LIB=	$(AR) $@	$(MIQ_TOLINK)	&& $(RANLIB) $@
-MAKE_DLL=	$(LD) -shared	$(MIQ_LDFLAGS) $(MIQ_LINKARGS)	\
+MAKE_DLL=	$(LD) -shared	$(MIQ_LINKARGS)	$(MIQ_LDFLAGS)  \
 				-o $(MIQ_DLLNAME)		\
 				-Wl,-rpath -Wl,$(PREFIX_DLL)	\
 				$(MIQ_SONAME_OPT)		\

config.mingw.mk

@@ -39,8 +39,5 @@ DLL_EXT=        .dll
 # MinGW has no 'install' program
 INSTALL=	cp
 
-# Do not add an rpath option on Windows
-MAKE_DLL=	$(LD) -shared $(MIQ_LDFLAGS) $(MIQ_TOLINK)-o $@
-
 # All code is PIC in MinGW, so avoid a warning
 CFLAGS_PIC=