Well, trivial answer is that Win32 uses some C/C++ runtime provided by Microsoft, usually something like MSVCR90.DLL (v9.0) etc. Solaris uses libC.so, for example. As far as I know, only systems where the GNU C/C++ compiler is main system compiler (and generally therefore the GNU C++ runtime) uses anything named "libstdc++". So I'd expect Free/Net/OpenBSD + Linux use that naming and probably not much else. On other commercial UNIXes, if it does exist, it is just for compatibility with C++ programs compiled using g++.<div> </div><div>Patrick <div class="gmail_quote">2011/10/13 Marcin Slusarz <<a href="mailto:marcin.slusarz@gmail.com">marcin.slusarz@gmail.com</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <div><div></div><div class="h5">On Thu, Oct 13, 2011 at 07:54:32PM +0200, Michel Dänzer wrote: > On Don, 2011-10-13 at 10:03 -0700, Marcin XXlusarz wrote: > > Module: Mesa > > Branch: master > > Commit: 349e4db99e938f8ee8826b0d27e490c66a1e8356 > > URL: <a href="http://cgit.freedesktop.org/mesa/mesa/commit/?id=349e4db99e938f8ee8826b0d27e490c66a1e8356" target="_blank">http://cgit.freedesktop.org/mesa/mesa/commit/?id=349e4db99e938f8ee8826b0d27e490c66a1e8356</a> > > > > Author: Marcin Slusarz <<a href="mailto:marcin.slusarz@gmail.com">marcin.slusarz@gmail.com</a>> > > Date: Thu Oct 13 18:44:40 2011 +0200 > > > > st/xorg: fix build without LLVM > > > > --- > > > > src/gallium/targets/Makefile.xorg | 2 ++ > > 1 files changed, 2 insertions(+), 0 deletions(-) > > > > diff --git a/src/gallium/targets/Makefile.xorg b/src/gallium/targets/Makefile.xorg > > index 9269375..c96eded 100644 > > --- a/src/gallium/targets/Makefile.xorg > > +++ b/src/gallium/targets/Makefile.xorg > > @@ -33,6 +33,8 @@ LD = $(CXX) > > LDFLAGS += $(LLVM_LDFLAGS) > > USE_CXX=1 > > DRIVER_LINKS += $(LLVM_LIBS) -lm -ldl > > +else > > +LDFLAGS += -lstdc++ > > endif > > This is wrong. Use g++ for linking libstdc++, gcc [...] -lstdc++ doesn't > work everywhere. </div></div>It wasn't my invention - I mimicked other targets (with partial exception of dri). Why gcc -lstdc++ doesn't work everywhere? --- From: Marcin Slusarz <<a href="mailto:marcin.slusarz@gmail.com">marcin.slusarz@gmail.com</a>> Subject: [PATCH] gallium/targets: use g++ for linking As pointed by Michel Dänzer, gcc -lstdc++ "doesn't work everywhere", because ... Use g++ for linking and remove redundant LDFLAGS += -lstdc++. --- src/gallium/targets/Makefile.dri | 2 -- src/gallium/targets/Makefile.va | 4 +--- src/gallium/targets/Makefile.vdpau | 4 +--- src/gallium/targets/Makefile.xorg | 5 +---- src/gallium/targets/Makefile.xvmc | 4 +--- 5 files changed, 4 insertions(+), 15 deletions(-) diff --git a/src/gallium/targets/Makefile.dri b/src/gallium/targets/Makefile.dri index 857ebfe..a26b3ee 100644 --- a/src/gallium/targets/Makefile.dri +++ b/src/gallium/targets/Makefile.dri @@ -4,8 +4,6 @@ ifeq ($(MESA_LLVM),1) LDFLAGS += $(LLVM_LDFLAGS) DRIVER_EXTRAS = $(LLVM_LIBS) -else -LDFLAGS += -lstdc++ endif MESA_MODULES = \ diff --git a/src/gallium/targets/Makefile.va b/src/gallium/targets/Makefile.va index 7ced430..b6ee595 100644 --- a/src/gallium/targets/Makefile.va +++ b/src/gallium/targets/Makefile.va @@ -17,8 +17,6 @@ STATE_TRACKER_LIB = $(TOP)/src/gallium/state_trackers/va/libvatracker.a ifeq ($(MESA_LLVM),1) LDFLAGS += $(LLVM_LDFLAGS) DRIVER_EXTRAS = $(LLVM_LIBS) -else -LDFLAGS += -lstdc++ endif # XXX: Hack, VA public funcs aren't exported @@ -39,7 +37,7 @@ OBJECTS = $(C_SOURCES:.c=.o) \ default: depend symlinks $(TOP)/$(LIB_DIR)/gallium/$(LIBNAME) $(TOP)/$(LIB_DIR)/gallium/$(LIBNAME): $(OBJECTS) $(PIPE_DRIVERS) $(STATE_TRACKER_LIB) $(TOP)/$(LIB_DIR)/gallium Makefile - $(MKLIB) -o $(LIBBASENAME) -linker '$(CC)' -ldflags '$(LDFLAGS)' \ + $(MKLIB) -o $(LIBBASENAME) -linker '$(CXX)' -ldflags '$(LDFLAGS)' \ -major $(VA_MAJOR) -minor $(VA_MINOR) $(MKLIB_OPTIONS) \ -install $(TOP)/$(LIB_DIR)/gallium \ $(OBJECTS) $(STATE_TRACKER_LIB) $(PIPE_DRIVERS) $(LIBS) $(DRIVER_EXTRAS) diff --git a/src/gallium/targets/Makefile.vdpau b/src/gallium/targets/Makefile.vdpau index c634915..f6b89ad 100644 --- a/src/gallium/targets/Makefile.vdpau +++ b/src/gallium/targets/Makefile.vdpau @@ -17,8 +17,6 @@ STATE_TRACKER_LIB = $(TOP)/src/gallium/state_trackers/vdpau/libvdpautracker.a ifeq ($(MESA_LLVM),1) LDFLAGS += $(LLVM_LDFLAGS) DRIVER_EXTRAS = $(LLVM_LIBS) -else -LDFLAGS += -lstdc++ endif # XXX: Hack, VDPAU public funcs aren't exported if we link to libvdpautracker.a :( @@ -39,7 +37,7 @@ OBJECTS = $(C_SOURCES:.c=.o) \ default: depend symlinks $(TOP)/$(LIB_DIR)/gallium/$(LIBNAME) $(TOP)/$(LIB_DIR)/gallium/$(LIBNAME): $(OBJECTS) $(PIPE_DRIVERS) $(STATE_TRACKER_LIB) $(TOP)/$(LIB_DIR)/gallium Makefile - $(MKLIB) -o $(LIBBASENAME) -linker '$(CC)' -ldflags '$(LDFLAGS)' \ + $(MKLIB) -o $(LIBBASENAME) -linker '$(CXX)' -ldflags '$(LDFLAGS)' \ -major $(VDPAU_MAJOR) -minor $(VDPAU_MINOR) $(MKLIB_OPTIONS) \ -install $(TOP)/$(LIB_DIR)/gallium \ $(OBJECTS) $(STATE_TRACKER_LIB) $(PIPE_DRIVERS) $(LIBS) $(DRIVER_EXTRAS) diff --git a/src/gallium/targets/Makefile.xorg b/src/gallium/targets/Makefile.xorg index c96eded..0538b2b 100644 --- a/src/gallium/targets/Makefile.xorg +++ b/src/gallium/targets/Makefile.xorg @@ -31,10 +31,7 @@ LIBNAME_STAGING = $(TOP)/$(LIB_DIR)/gallium/$(TARGET) ifeq ($(MESA_LLVM),1) <div class="im"> LD = $(CXX) LDFLAGS += $(LLVM_LDFLAGS) </div>-USE_CXX=1 <div class="im"> DRIVER_LINKS += $(LLVM_LIBS) -lm -ldl </div>-else -LDFLAGS += -lstdc++ endif @@ -43,7 +40,7 @@ endif default: depend $(TOP)/$(LIB_DIR)/gallium $(LIBNAME) $(LIBNAME_STAGING) $(LIBNAME): $(OBJECTS) Makefile ../Makefile.xorg $(LIBS) $(DRIVER_PIPES) $(GALLIUM_AUXILIARIES) - $(MKLIB) -linker '$(CC)' -noprefix -o $@ $(LDFLAGS) $(OBJECTS) $(DRIVER_PIPES) $(GALLIUM_AUXILIARIES) $(DRIVER_LINKS) + $(MKLIB) -linker '$(CXX)' -noprefix -o $@ $(LDFLAGS) $(OBJECTS) $(DRIVER_PIPES) $(GALLIUM_AUXILIARIES) $(DRIVER_LINKS) depend: $(C_SOURCES) $(CPP_SOURCES) $(ASM_SOURCES) $(SYMLINKS) $(GENERATED_SOURCES) rm -f depend diff --git a/src/gallium/targets/Makefile.xvmc b/src/gallium/targets/Makefile.xvmc index 7182356..f0c4779 100644 --- a/src/gallium/targets/Makefile.xvmc +++ b/src/gallium/targets/Makefile.xvmc @@ -17,8 +17,6 @@ STATE_TRACKER_LIB = $(TOP)/src/gallium/state_trackers/xorg/xvmc/libxvmctracker.a ifeq ($(MESA_LLVM),1) LDFLAGS += $(LLVM_LDFLAGS) DRIVER_EXTRAS = $(LLVM_LIBS) -else -LDFLAGS += -lstdc++ endif @@ -40,7 +38,7 @@ OBJECTS = $(C_SOURCES:.c=.o) \ default: depend symlinks $(TOP)/$(LIB_DIR)/gallium/$(LIBNAME) $(TOP)/$(LIB_DIR)/gallium/$(LIBNAME): $(OBJECTS) $(PIPE_DRIVERS) $(STATE_TRACKER_LIB) $(TOP)/$(LIB_DIR)/gallium Makefile - $(MKLIB) -o $(LIBBASENAME) -linker '$(CC)' -ldflags '$(LDFLAGS)' \ + $(MKLIB) -o $(LIBBASENAME) -linker '$(CXX)' -ldflags '$(LDFLAGS)' \ -major $(XVMC_MAJOR) -minor $(XVMC_MINOR) $(MKLIB_OPTIONS) \ -install $(TOP)/$(LIB_DIR)/gallium \ $(OBJECTS) $(STATE_TRACKER_LIB) $(PIPE_DRIVERS) $(LIBS) $(DRIVER_EXTRAS) -- 1.7.7 <div><div></div><div class="h5"> _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/mesa-dev" target="_blank">http://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </div></div></blockquote></div> </div>