On Thu, 14 Jul 2011 20:15 +0200, "luca paganotti" luca.paganotti@gmail.com wrote:
On Thu, Jul 14, 2011 at 7:02 PM, Hans-Christoph Steiner hans@at.or.atwrote:
On Thu, 14 Jul 2011 12:44 -0400, "Mathieu Bouchard" matju@artengine.ca wrote:
On Thu, 14 Jul 2011, luca paganotti wrote:
but ... I get 'undefined reference' (s) for all the pd symbols that are used by helloworld.c i.e. pd_new, gensym, class_new, class_addbang,
post
You need to use the -shared option to produce a .so or .DLL file.
In addition, you need to link with PD.DLL (a Windows-only requirement... no such equivalent on other platforms).
Hey Luca,
This is great, that you got this far! Can you write up a wiki page in the dev section. Don't worry too much about formatting, mostly just get the info in there. http://puredata.info/docs/developer
I think it's a very trivial thing for a wiki page, I mean is not such a great thing ....
As for Makefiles, if you use the the Library Template, then the Makefile will work on MinGW, Cygwin, Mac OS X, GNU/Linux, Android, iOS, etc. http://puredata.info/docs/developer/LibraryTemplate
.hc
ok, got the template from svn,
use it as it is trying to build a 'mycobject' as defined by the code ...
getting these results in eclipse console:
**** Build of configuration Default for project mycobject ****
make all Building target: mycobject Invoking: MinGW C++ Linker g++ -L"C:\Programmi\pd\bin" -o"mycobject" ./mycobject.o -l"C:/Programmi/pd/bin/pd.lib" c:/mingw/bin/../lib/gcc/mingw32/4.5.2/../../../../mingw32/bin/ld.exe: cannot find -lC:/Programmi/pd/bin/pd.lib collect2: ld returned 1 exit status make: *** [mycobject] Error 1
what I really do not understand is that I have my pd.lib file exactly in the folder were ld on bhalf eclipse searches for it, i.e. C:\Programmi\pd\bin\pd.lib
Anyway I then tryed the hard way from the mingw console issueing a 'make all' getting finally a usefull error message:
Pag@XP-PAG /c/dev/c++/pd-externals/mycobject $ make clean sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory rm -f -- mycobject.o rm -f -- mycobject.dll rm -f -- mycobject.o rm -f -- mycobject.dll
Pag@XP-PAG /c/dev/c++/pd-externals/mycobject $ make all sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory cc -I"/c/Programmi/pd/include/pd" -Wall -W -g -DPD -DVERSION='""' -mms-bitfields -O3 -funroll-loops -fomit-frame-pointer -o "mycobject.o" -c "mycobject.c" /bin/sh: cc: command not found make: *** [mycobject.o] Error 127
perhaps does it means that the compiler command is not defined in the makefile?
I added this line
CC = gcc
between the OS = windows and PD_PATH = $(shell cd "$(PROGRAMFILES)"/pd && pwd) lines
inside the ifeq (MINGW,$(findstring MINGW,$(UNAME))) ... endif block
and then got:
Pag@XP-PAG /c/dev/c++/pd-externals/mycobject $ make all sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory sed: can't read mycobject-meta.pd: No such file or directory gcc -I"/c/Programmi/pd/include/pd" -Wall -W -g -DPD -DVERSION='""' -mms-bitfield s -O3 -funroll-loops -fomit-frame-pointer -o "mycobject.o" -c "mycobject.c" gcc -s -shared -Wl,--enable-auto-import -o "mycobject.dll" "mycobject.o" -L"/ c/Programmi/pd/src/" -L"/c/Programmi/pd/bin/" -lpd -lwsock32 -lkernel32 -luser32 -lgdi32 chmod a-x "mycobject.dll"
Pag@XP-PAG /c/dev/c++/pd-externals/mycobject $
I got the mycobject dll that runs fine under pd-extended on a windows box.
Still wondering why eclise doen't find my pd.lib
At least this is working now from the command line.
Perhaps Eclipse sets CFLAGS or LDFLAGS, which is overriding things in the Makefile?
About this template, it is oriented around making libraries, so that includes the meta file for marking the folder as a library. Setting it up is simple:
- rename the template folder to the name of your library
- rename template-meta.pd replacing 'template' with the name you just
used for the folder
- edit Makefile and put the library/folder/meta name in the first
variable, LIBRARY_NAME
Now you can set library meta data in the meta file, things like version, authors, etc.
.hc