build: link with CXX when -lstdc++ on linker commandline

Makefile

@@ -53,31 +53,31 @@ FF_DEP_LIBS  := $(DEP_LIBS)
 FF_STATIC_DEP_LIBS := $(STATIC_DEP_LIBS)
 
 $(TOOLS): %$(EXESUF): %.o
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(filter-out $(FF_DEP_LIBS), $^) $(EXTRALIBS-$(*F)) $(EXTRALIBS) $(ELIBS)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(filter-out $(FF_DEP_LIBS), $^) $(EXTRALIBS-$(*F)) $(EXTRALIBS) $(ELIBS))
 
 target_dec_%_fuzzer$(EXESUF): target_dec_%_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 target_enc_%_fuzzer$(EXESUF): target_enc_%_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 tools/target_bsf_%_fuzzer$(EXESUF): tools/target_bsf_%_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 target_dem_%_fuzzer$(EXESUF): target_dem_%_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 tools/target_dem_fuzzer$(EXESUF): tools/target_dem_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 tools/target_io_dem_fuzzer$(EXESUF): tools/target_io_dem_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 tools/target_sws_fuzzer$(EXESUF): tools/target_sws_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 tools/target_swr_fuzzer$(EXESUF): tools/target_swr_fuzzer.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
 
 tools/enum_options$(EXESUF): ELIBS = $(FF_EXTRALIBS)
 tools/enum_options$(EXESUF): $(FF_DEP_LIBS)
@@ -144,7 +144,7 @@ else
 endif
 
 %$(PROGSSUF)_g$(EXESUF): $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS))
 
 VERSION_SH  = $(SRC_PATH)/ffbuild/version.sh
 ifeq ($(VERSION_TRACKING),yes)

ffbuild/common.mak

@@ -12,13 +12,22 @@ endif
 
 ifndef SUBDIR
 
+LINK = $(LD) $(1)
+
+ifeq ($(LD),$(CC))
+ifneq ($(CXX),)
+LDXX := $(CXX)
+LINK = $(if $(filter -lstdc++,$(1)),$(LDXX) $(filter-out -lstdc++,$(1)),$(LD) $(1))
+endif
+endif
+
 BIN2CEXE = ffbuild/bin2c$(HOSTEXESUF)
 BIN2C = $(BIN2CEXE)
 
 ifndef V
 Q      = @
 ECHO   = printf "$(1)\t%s\n" $(2)
-BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS X86ASM AR LD STRIP CP WINDRES NVCC BIN2C METALCC METALLIB
+BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS X86ASM AR LD LDXX STRIP CP WINDRES NVCC BIN2C METALCC METALLIB
 SILENT = DEPCC DEPHOSTCC DEPAS DEPX86ASM RANLIB RM
 
 MSG    = $@

ffbuild/library.mak

@@ -55,8 +55,12 @@ $(TESTPROGS): THISLIB = $(SUBDIR)$(LIBNAME)
 
 $(LIBOBJS): CPPFLAGS += -DBUILDING_$(NAME)
 
+$(NAME)LINK_EXE_ARGS = $(LDFLAGS) $(LDEXEFLAGS)
+$(NAME)LINK_SO_ARGS = $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS)
+$(NAME)LINK_EXTRA = $(FFEXTRALIBS)
+
 $(TESTPROGS) $(TOOLS): %$(EXESUF): %.o
-	$$(LD) $(LDFLAGS) $(LDEXEFLAGS) $$(LD_O) $$(filter %.o,$$^) $$(THISLIB) $(FFEXTRALIBS) $$(EXTRALIBS-$$(*F)) $$(ELIBS)
+	$$(call LINK,$$(call $(NAME)LINK_EXE_ARGS) $$(LD_O) $$(filter %.o,$$^) $$(THISLIB) $$(call $(NAME)LINK_EXTRA) $$(EXTRALIBS-$$(*F)) $$(ELIBS))
 
 $(SUBDIR)lib$(NAME).version: $(SUBDIR)version.h $(SUBDIR)version_major.h | $(SUBDIR)
 	$$(M) $$(SRC_PATH)/ffbuild/libversion.sh $(NAME) $$^ > $$@
@@ -74,9 +78,9 @@ $(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(OBJS) $(SHLIBOBJS) $(SUBDIR)lib$(NAME).ver
 	$(SLIB_CREATE_DEF_CMD)
 ifeq ($(RESPONSE_FILES),yes)
 	$(Q)echo $$(filter %.o,$$^) > $$@.objs
-	$$(LD) $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS) $$(LD_O) @$$@.objs $(FFEXTRALIBS)
+	$$(call LINK,$$(call $(NAME)LINK_SO_ARGS) $$(LD_O) @$$@.objs $$(call $(NAME)LINK_EXTRA))
 else
-	$$(LD) $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS) $$(LD_O) $$(filter %.o,$$^) $(FFEXTRALIBS)
+	$$(call LINK,$$(call $(NAME)LINK_SO_ARGS) $$(LD_O) $$(filter %.o,$$^) $$(call $(NAME)LINK_EXTRA))
 endif
 	$(SLIB_EXTRA_CMD)
 	-$(RM) $$@.objs

tests/api/Makefile

@@ -15,7 +15,7 @@ $(APITESTOBJS) $(APITESTOBJS:.o=.i): CPPFLAGS += -DTEST
 $(APITESTOBJS) $(APITESTOBJS:.o=.i): CFLAGS += -Umain
 
 $(APITESTPROGS): %$(EXESUF): %.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(filter %.o,$^) $(FF_EXTRALIBS) $(ELIBS)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(filter %.o,$^) $(FF_EXTRALIBS) $(ELIBS))
 
 testclean::
 	$(RM) $(addprefix $(APITESTSDIR)/,$(CLEANSUFFIXES) *-test$(EXESUF))

tests/checkasm/Makefile

@@ -107,7 +107,7 @@ tests/checkasm/checkasm.o: CFLAGS += -Umain
 CHECKASM := tests/checkasm/checkasm$(EXESUF)
 
 $(CHECKASM): $(CHECKASMOBJS) $(FF_STATIC_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(CHECKASMOBJS) $(FF_STATIC_DEP_LIBS) $(EXTRALIBS-avcodec) $(EXTRALIBS-avfilter) $(EXTRALIBS-avformat) $(EXTRALIBS-avutil) $(EXTRALIBS-swresample) $(EXTRALIBS)
+	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(CHECKASMOBJS) $(FF_STATIC_DEP_LIBS) $(EXTRALIBS-avcodec) $(EXTRALIBS-avfilter) $(EXTRALIBS-avformat) $(EXTRALIBS-avutil) $(EXTRALIBS-swresample) $(EXTRALIBS))
 
 run-checkasm: $(CHECKASM)
 run-checkasm: