Do not forward (and forward incorrectly) Firebird build flags to tools (cloop)

Author: asfernandes

builds/posix/Makefile.in

@@ -197,7 +197,7 @@ ifeq ($(CLIENT_ONLY_FLG),N)
 	CC="$(CC)" CFLAGS="$(CFLAGS)" AR="$(AR)" $(MAKE) -C $(ROOT)/extern/btyacc
 endif
 
-	CXX="$(CXX)" CXXFLAGS="$(CXXFLAGS)" LD_FLAGS="$(WLDFLAGS)" $(MAKE) -C $(ROOT)/extern/cloop TARGET=release WITH_FPC=0 BUILD_DIR=$(TMP_ROOT)/cloop OUT_DIR=$(GEN_ROOT)/$(TARGET)/cloop core
+	CXX="$(CXX)" LD_FLAGS="$(PLATFORM_LDFLAGS)" $(MAKE) -C $(ROOT)/extern/cloop TARGET=release WITH_FPC=0 BUILD_DIR=$(TMP_ROOT)/cloop OUT_DIR=$(GEN_ROOT)/$(TARGET)/cloop core
 
 	CC="$(CC)" CFLAGS="$(CFLAGS)" AR="$(AR)" $(MAKE) -C $(ROOT)/extern/decNumber
 	ln -sf $(ROOT)/extern/decNumber/libdecFloat.a $(STATIC_LIB)

builds/posix/make.rules

@@ -71,7 +71,8 @@ WCXXFLAGS = $(WFLAGS) $(PLUSPLUS_FLAGS) $(PLATFORM_PLUSPLUS_FLAGS) $(CXXFLAGS) $
 WLDFLAGS = $(LDFLAGS) $(AC_LDFLAGS)
 
 ifneq ($(PLATFORM),DARWIN)
-WLDFLAGS += -static-libstdc++
+PLATFORM_LDFLAGS="-static-libstdc++"
+WLDFLAGS += $(PLATFORM_LDFLAGS)
 endif
 
 # Here we have definitions for using the preprocessor.