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++.
Patrick 2011/10/13 Marcin Slusarz <marcin.slus...@gmail.com> > 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: > http://cgit.freedesktop.org/mesa/mesa/commit/?id=349e4db99e938f8ee8826b0d27e490c66a1e8356 > > > > > > Author: Marcin Slusarz <marcin.slus...@gmail.com> > > > 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 += $(LLVM_LIBS) -lm -ldl > > > +else > > > +LDFLAGS += -lstdc++ > > > endif > > > > This is wrong. Use g++ for linking libstdc++, gcc [...] -lstdc++ doesn't > > work everywhere. > > It wasn't my invention - I mimicked other targets (with partial exception > of dri). > Why gcc -lstdc++ doesn't work everywhere? > > --- > From: Marcin Slusarz <marcin.slus...@gmail.com> > Subject: [PATCH] gallium/targets: use g++ for linking > > As pointed by Michel Dänzer, gcc -lstdc++ "doesn't work everywhere", > because ... > Use g++ for linking and remove redundant LDFLAGS += -lstdc++. > --- > src/gallium/targets/Makefile.dri | 2 -- > src/gallium/targets/Makefile.va | 4 +--- > src/gallium/targets/Makefile.vdpau | 4 +--- > src/gallium/targets/Makefile.xorg | 5 +---- > src/gallium/targets/Makefile.xvmc | 4 +--- > 5 files changed, 4 insertions(+), 15 deletions(-) > > diff --git a/src/gallium/targets/Makefile.dri > b/src/gallium/targets/Makefile.dri > index 857ebfe..a26b3ee 100644 > --- a/src/gallium/targets/Makefile.dri > +++ b/src/gallium/targets/Makefile.dri > @@ -4,8 +4,6 @@ > ifeq ($(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) > LD = $(CXX) > LDFLAGS += $(LLVM_LDFLAGS) > -USE_CXX=1 > DRIVER_LINKS += $(LLVM_LIBS) -lm -ldl > -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 > > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev >
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