libhid0 and libhid-dev for use with USB based WX Stations (wmr100)

[rec9140]

I am trying to compile the wmr100 software for pulling data from USB Oregon Scientific weather stations like RMS600A, WMR100 etc..

on a previous version Maverick 64bit I can compile this with libhid0/libhid-dev/python-hid 0.2.15_20060325

For what ever reason libhid0 and libhid-dev and python-hid are no longer in the main repos

I found a PPA with them compiled...BUT its 0.2.16....

https://launchpad.net/~yavdr/+archive/main

I have done BOTH:

1) Pulled the DEBS from the PPA directory, and then use the DEB installer

2) Added the PPA via apt-add-repository and then pulling via synaptic

Neither results in a compiled program. Same results regardless of the method of lib install.

If the libhid-dev is not installed, it obviously fails to find it and obvisouly would not compile, hence:

x0@x-x:~/barnybug-wmr100-511ecd6$ sudo make
cc  `pkg-config libhid --cflags` -pedantic `pkg-config libhid --libs`  wmr100.c   -o wmr100
Package libhid was not found in the pkg-config search path.
Perhaps you should add the directory containing `libhid.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libhid' found
Package libhid was not found in the pkg-config search path.
Perhaps you should add the directory containing `libhid.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libhid' found
wmr100.c:21:17: fatal error: hid.h: No such file or directory
compilation terminated.
make: *** [wmr100] Error 1
rx@x-x:~/barnybug-wmr100-511ecd6$

Why do this? I wanted to confirm that libhid-dev was being found... so with it installed and re-attempting the compile:

rx@x:~$ cd barnybug-wmr100-511ecd6/
x@rec9140-D525TUD:~/barnybug-wmr100-511ecd6$ sudo make
cc  `pkg-config libhid --cflags` -pedantic `pkg-config libhid --libs`  wmr100.c   -o wmr100
wmr100.c: In function ‘wmr_print_state’:
wmr100.c:146:39: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
/tmp/ccdy4Cdm.o: In function `wmr_init':
wmr100.c:(.text+0x119): undefined reference to `hid_init'
wmr100.c:(.text+0x155): undefined reference to `hid_new_HIDInterface'
wmr100.c:(.text+0x1bf): undefined reference to `hid_force_open'
wmr100.c:(.text+0x249): undefined reference to `hid_write_identification'
/tmp/ccdy4Cdm.o: In function `wmr_send_packet_init':
wmr100.c:(.text+0x2cd): undefined reference to `hid_set_output_report'
/tmp/ccdy4Cdm.o: In function `wmr_send_packet_ready':
wmr100.c:(.text+0x32e): undefined reference to `hid_set_output_report'
/tmp/ccdy4Cdm.o: In function `wmr_close':
wmr100.c:(.text+0x3a9): undefined reference to `hid_close'
wmr100.c:(.text+0x3eb): undefined reference to `hid_delete_HIDInterface'
wmr100.c:(.text+0x401): undefined reference to `hid_cleanup'
/tmp/ccdy4Cdm.o: In function `wmr_read_packet':
wmr100.c:(.text+0x4a8): undefined reference to `hid_interrupt_read'
collect2: ld returned 1 exit status
make: *** [wmr100] Error 1
rx@x:~/barnybug-wmr100-511ecd6$

The cast error is ignorable... as this was written for 32bit and not made 64bit compatible, it will compile and run correctly with this error. I actually have a commit to fix this, but I need to solve this before going any further.

If I compile on the other system it compiles fine, and I can copy the compiled program to the Oneiric system and it does run.. BUT obviously thats not a valid path for the future to continue the program on.

Ok.. try it with DEBS for the 0.2.15 version... same results... no compile, same errors.

This is for 64bit Oneiric, and I want to resolve this for Precise and the future.....

Any ideas? ? ?

[rec9140]

This appears to be something related to the make file and getting it to find the hid.h file

I've checked paths v. systems... same paths...

I've checked the symbolic links and the files for this and they are the same....

So the Makefile.....

CPPFLAGS += `pkg-config libhid --cflags` -pedantic
LDFLAGS += `pkg-config libhid --libs`

wmr100: wmr100.c

clean:
	-rm wmr100


setup_osx:
	sudo cp -r osx/wmr100.kext /System/Library/Extensions/wmr100.kext
	sudo kextload -vt /System/Library/Extensions/wmr100.kext
	sudo touch /System/Library/Extensions

unsetup_osx:
	sudo rm -r -i /System/Library/Extensions/wmr100.kext
	sudo touch /System/Library/Extensions
	echo Please reboot for changes to take effect.

I am no c programmer or makefile guru... I've taken over this program since its been abandoned for a year+....

The setup/unsetup stuff do something for os x stuff.....

I diff'd the hid.h file and there is 2 lines difference [0.2.15 v. 0.2.16] which add 1 function, but the errors are pretty much an inability to find hid.h

Possibly related to default compiler flag(s) changes? [I remember something about that someplace....and it effecting something... not sure if its realted...]

Any ideas?

[rec9140]

SOLUTION: gcc changes... makefile updates

Thanks to assistance from a compiling guru...

http://ubuntuforums.org/showthread.php?t=1951525

The culprit is the changes made to the gcc compiler defaults and thus the makefile needs changed.

Solution:

Courtesy of : SevenMachines on U Forums:
 - - - 

CFLAGS += `pkg-config libhid --cflags` -pedantic
LIBS += `pkg-config libhid --libs`

wmr100: wmr100.c
	cc  ${CFLAGS} -o wmr100 wmr100.c ${LIBS}

The theory:

Libs are not LDFLAGS so when make uses its implicit rules to generate a compile command for wmr100.c it puts LDFLAGS (where the libs have wrongly gone) before the object files in the command. As Ubuntu now defaults gcc (ld) to --as-needed for libraries they must now go after the object files, see many, many threads in this forum on this issue

Regrettably this reads like waahahwawawahhawaawh to me.. (NOT a c or compiler type person....)