Hi Hans,
Could we please get Pd-extended to link the "pd" executable to
libstdc++.so ? Afaik, this is a fix for a possibly wide category of
problems but that is currently only "known" to affect GridFlow when
loading GEM while the driver named "fglrx" is in use (ATI video).
AFAIK, this problem affects any lib that uses the "throw" keyword in C++
code, whenever the ATI driver is loaded _before_ the standard library of
C++, in which case it will provide its own version of a portion of the C++
standard library, which is incompatible (sort of like the DLL Hell on
Windows). This driver is typically loaded by anything linked to OpenGL
directly or indirectly (usually GEM, but could also be 3DP,
OpenSceneGraph, etc)
So, what I'm asking, is to link Pd itself to a library that it doesn't
need, in order to force the bug out, so that this problem doesn't have to
be addressed anywhere else. I believe that it is far easier to prevent
this bug from the Pd executable than to make any kind of elaborate circus
with the loading-order of pdsettings and pdrc and a little dummy .pd_linux
(which has -lstdc++ without using it, and has an empty _setup).
If you want, you can think of it as the first step for putting GridFlow in
pd-extended.
diff from Claude:
------------------8<--------cut-here--------8<------------------
--- pd-0.41-4/src/makefile.in.orig 2008-03-15 00:03:00.000000000 +0000
+++ pd-0.41-4/src/makefile.in 2009-08-23 18:55:35.000000000 +0100
-121,7 +121,7 @@
$(CC) $(CFLAGS) $(STRIPFLAG) -o $(BIN_DIR)/pdreceive u_pdreceive.c
$(PDEXEC): $(OBJ) $(BIN_DIR)
- cd ../obj; $(CC) $(LDFLAGS) $(DBG_CFLAGS) -o $(PDEXEC) $(OBJ) $(LIB)
+ cd ../obj; $(CC) $(LDFLAGS) $(DBG_CFLAGS) -o $(PDEXEC) $(OBJ) $(LIB) -lstdc++
$(BIN_DIR)/pd-gui: $(GOBJ) $(GSRC)
cd ../obj; $(CC) $(INCLUDE) -o $(BIN_DIR)/$(GUINAME) $(GOBJ) $(GLIB)
------------------8<--------cut-here--------8<------------------
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| Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801