Tyler Nitsch

Finally trodding into the development terrain, so much to learn about C it makes me sick. Just downloaded and installed every package possible for cygwin for my xp machine. I'm going through the max/msp sdk docs, got the minimum external to compile no problems however whenever I try to compile any msp objects I get:

$ gcc -shared -mno-cygwin -o lores~.mxe lores~.o lores~.def -L../../c74support/

max-includes -L../../c74support/msp-includes -lMaxAPI

lores~.o:lores~.c:(.text+0x56): undefined reference to `_z_dsp_free'

lores~.o:lores~.c:(.text+0xeb): undefined reference to `_z_add_signalmethod'

lores~.o:lores~.c:(.text+0x1d3): undefined reference to `_dsp_add'

lores~.o:lores~.c:(.text+0x234): undefined reference to `_dsp_add'

lores~.o:lores~.c:(.text+0xf37): undefined reference to `_z_dsp_setup'

lores~.o:lores~.c:(.text+0xf74): undefined reference to `_sys_getsr'

Any suggestions or points to the right source of infos would greatly be appreciated. Thanks in advance.

Finally trodding into the development terrain, so much to learn about C it makes me sick.  Just downloaded and installed every package possible for cygwin for my xp machine.  I'm going through the max/msp sdk docs, got the minimum external to compile no problems however whenever I try to compile any msp objects I get:

$ gcc -shared -mno-cygwin -o lores~.mxe lores~.o lores~.def -L../../c74support/
max-includes -L../../c74support/msp-includes -lMaxAPI
lores~.o:lores~.c:(.text+0x56): undefined reference to `_z_dsp_free'

lores~.o:lores~.c:(.text+0xeb): undefined reference to `_z_add_signalmethod'
lores~.o:lores~.c:(.text+0x1d3): undefined reference to `_dsp_add'
lores~.o:lores~.c:(.text+0x234): undefined reference to `_dsp_add'
lores~.o:lores~.c:(.text+0xf37): undefined reference to `_z_dsp_setup'
lores~.o:lores~.c:(.text+0xf74): undefined reference to `_sys_getsr'
collect2: ld returned 1 exit status

Any suggestions or points to the right source of infos would greatly be appreciated.  Thanks in advance.


cygwin-gcc-compiling-issues

> Finally trodding into the development terrain, so much to learn about C it makes me sick. Just downloaded and installed every package possible for cygwin for my xp machine. I'm going through the max/msp sdk docs, got the minimum external to compile no problems however whenever I try to compile any msp objects I get:

> $ gcc -shared -mno-cygwin -o lores~.mxe lores~.o lores~.def -L../../c74support/

> max-includes -L../../c74support/msp-includes -lMaxAPI

> lores~.o:lores~.c:(.text+0x56): undefined reference to `_z_dsp_free'

> lores~.o:lores~.c:(.text+0xeb): undefined reference to `_z_add_signalmethod'

> lores~.o:lores~.c:(.text+0x1d3): undefined reference to `_dsp_add'

> lores~.o:lores~.c:(.text+0x234): undefined reference to `_dsp_add'

> lores~.o:lores~.c:(.text+0xf37): undefined reference to `_z_dsp_setup'

> lores~.o:lores~.c:(.text+0xf74): undefined reference to `_sys_getsr'

> Any suggestions or points to the right source of infos would greatly be appreciated. Thanks in advance.

On 5/24/07, Tyler Nitsch  wrote:
>
> Finally trodding into the development terrain, so much to learn about C it makes me sick.  Just downloaded and installed every package possible for cygwin for my xp machine.  I'm going through the max/msp sdk docs, got the minimum external to compile no problems however whenever I try to compile any msp objects I get:
>
>
> $ gcc -shared -mno-cygwin -o lores~.mxe lores~.o lores~.def -L../../c74support/
> max-includes -L../../c74support/msp-includes -lMaxAPI
> lores~.o:lores~.c:(.text+0x56): undefined reference to `_z_dsp_free'

> lores~.o:lores~.c:(.text+0xeb): undefined reference to `_z_add_signalmethod'
> lores~.o:lores~.c:(.text+0x1d3): undefined reference to `_dsp_add'
> lores~.o:lores~.c:(.text+0x234): undefined reference to `_dsp_add'
> lores~.o:lores~.c:(.text+0xf37): undefined reference to `_z_dsp_setup'
> lores~.o:lores~.c:(.text+0xf74): undefined reference to `_sys_getsr'
> collect2: ld returned 1 exit status
>
> Any suggestions or points to the right source of infos would greatly be appreciated.  Thanks in advance.
>


Just to make sure from what I'm gathering the includey statements go in the top lines of your .c program. I'm using the lores~.c as given in the sdk.. which does include this #include "z_dsp.h" at the top. Is this what your talking about? I'm following the steps given in the Cygwin_gcc_Howto.rtf manual exactly except replacing minimimum wiht lores~ and adding the additional lines -I../../c74support/msp-includes in step 1 and -L../../c74support/msp-includes in step 2

perhaps having the two -L in the gcc command is making things weird.

Just to make sure from what I'm gathering the includey statements go in the top lines of your .c program.  I'm using the lores~.c as given in the sdk.. which does include this #include "z_dsp.h" at the top.  Is this what your talking about?  I'm following the steps given in the Cygwin_gcc_Howto.rtf manual exactly except replacing minimimum wiht lores~ and adding the additional lines -I../../c74support/msp-includes in step 1 and -L../../c74support/msp-includes in step 2

perhaps having the two -L in the gcc command is making things weird.


Well, I don't know - I don't have any experience with gcc on cygwin.

The gcc builds we do on Mac use the -I flag, not -L -- is it possible

Well, I don't know - I don't have any experience with gcc on cygwin.
The gcc builds we do on Mac use the -I flag, not -L -- is it possible
that's the problem?

On May 24, 2007, at 3:11 PM, Ben Nevile wrote:

> Well, I don't know - I don't have any experience with gcc on cygwin.

> The gcc builds we do on Mac use the -I flag, not -L -- is it possible

> Well, I don't know - I don't have any experience with gcc on cygwin.
> The gcc builds we do on Mac use the -I flag, not -L -- is it possible
> that's the problem?
>
> Ben


No it still won't work. I'll have a fresh go at it tommorow... thanks for the help!!!

No it still won't work.  I'll have a fresh go at it tommorow... thanks for the help!!!


Ahhhh yeah headers and libraries. Thanks Mark. It finally compiled by entering..

gcc -shared -mno-cygwin -o minimum.mxe minimum.o minimum.def -L../../c74support/max-includes -L../../c74support/msp-includes -lMaxAPI -lMaxAudio

seems I wasnt' linking to the MaxAudio.lib

Ahhhh yeah headers and libraries.  Thanks Mark.  It finally compiled by entering..

seems I wasnt' linking to the MaxAudio.lib


cygwin gcc compiling issues