Conky -1.4.47 compile error

BashTin · 09-26-2007, 09:47 AM

Hi all. Back again for more. Don't really know if this is the most suitable forum for this but you have not let me down yet ;-)

Ok I am trying to compile conky 1.4.7 with wireless support, './configure --enable-wlan'

But the compile fails with.....

checking iwlib.h presence... yes
checking for iwlib.h... yes
checking for iw_sockets_open in -liw... no
configure: error: iw_sockets_open not found

This is a 'snip' from config.log

***********************************************************************
configure:20549: checking iwlib.h presence
configure:20564: gcc -E conftest.c
configure:20570: $? = 0
configure:20584: result: yes
configure:20617: checking for iwlib.h
configure:20625: result: yes
configure:20642: checking for iw_sockets_open in -liw
configure:20677: gcc -o conftest conftest.c -liw >&5
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0x991): In function `iw_freq2float':
: undefined reference to `pow'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0xb76): In function `iw_float2freq':
: undefined reference to `log10'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0xb7e): In function `iw_float2freq':
: undefined reference to `floor'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0xbbf): In function `iw_float2freq':
: undefined reference to `pow'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0xbcf): In function `iw_float2freq':
: undefined reference to `floor'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0x1257): In function `iw_dbm2mwatt':
: undefined reference to `pow'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0x1261): In function `iw_dbm2mwatt':
: undefined reference to `floor'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0x12a0): In function `iw_mwatt2dbm':
: undefined reference to `log10'
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../libiw.so(iwlib.so)(.text+0x12b0): In function `iw_mwatt2dbm':
: undefined reference to `ceil'
collect2: ld returned 1 exit status
configure:20683: $? = 1
configure: failed program was:
| /* confdefs.h. */
| #define PACKAGE_NAME "Conky"
| #define PACKAGE_TARNAME "conky"
| #define PACKAGE_VERSION "1.4.7"
| #define PACKAGE_STRING "Conky 1.4.7"
| #define PACKAGE_BUGREPORT "brenden1@users.sourceforge.net"
| #define PACKAGE "conky"
| #define VERSION "1.4.7"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_DLFCN_H 1
| #define OWN_WINDOW 1
| #define HDDTEMP 1
| #define MPD 1
| #define HAVE_IWLIB_H 1
| /* end confdefs.h. */
| /* Override any GCC internal prototype to avoid an error.
| Use char because int might match the return type of a GCC
| builtin and then its argument prototype would still apply. */
| #ifdef __cplusplus
| extern "C"
| #endif
| char iw_sockets_open ();
| int
| main ()
| {
| return iw_sockets_open ();
| ;
| return 0;
| }
configure:20701: result: no
configure:20706: error: iw_sockets_open not found
***********************************************************************

I have iwlib.h in /usr/include;

I have wireless.h in...
/usr/src/linux-2.6.21.6/include/linux/wireless.h
/usr/include/linux/wireless.h
/usr/include/wireless.h

I also have the soft link /usr/lib/libiw.so -> /usr/lib/libiw.a

I am running Slacky 11, Linux 2.6.21.6 (i686) with gcc 3.4.6.

I need Conky 1.4.7 as the previous version 1.4.5 does not have wireless support, as I understand it.

As usual any help or ideas would be very much appreciated.

BashTin.

H_TeXMeX_H · 09-28-2007, 02:46 AM

It looks like there is something wrong with libiw.

Quote:

I also have the soft link /usr/lib/libiw.so -> /usr/lib/libiw.a

That's a very bad idea ... such a thing will never work, because they are two very very different files. Please re-install libiw properly. You may need to './configure --enable-shared'.

BashTin · 09-30-2007, 01:00 AM

H_TeXMeX_H thanks for the reply.

The soft link was something I added. Didn't really know what I was doing but thought it was worth a try.

I have removed the link and reinstalled libiw with the same results.

Think I might post this in programming and see if anyone has any ideas there.

Thanks again, BashTin.

H_TeXMeX_H · 09-30-2007, 02:11 AM

In order for it to generate a '.so' along with a '.a', you need to tell it to make a shared library. (hence the './configure --enable-shared') I might be wrong and this may not be the right option. Try './configure --help' or read 'INSTALL' or 'README'. Or, go ahead and ask on the programming forum ...

BashTin · 09-30-2007, 03:49 AM

Hi again.

Well a bit confused now. Do you mean when I configure conky or libiw I should '--enable-shared'?

The tar.gz libiw only contains the headers I mentioned and libiw.a not any configure scripts or installation scripts. I just unzipped in the root dir and it installed to the specific locations.

Conky config says --enable-shared is default.

Because I could not find any reference to a libiw.so in my Slack install (I checked with pkgtool as to the files that come with wireless-tools and it lists, libiw.a, wireless.h & iwlib.h but not the libiw.so).

I found libiw.so.25 in a Red Hat RPM libiw-devel-25-1.i686.rpm and used rpm2tgz to extract and install it to /lib.

Now the compile goes through ok but make fails with........

linux.o(.text+0xcbb): In function `update_net_stats':
: undefined reference to `iw_sawap_ntop'
collect2: ld returned 1 exit status
make[2]: *** [conky] Error 1

Hmm one step forward one step back. Do I need to install wireless_tools sources? If so where do I put them/how do I install them? (already have them)

Thanks again, BashTin.

H_TeXMeX_H · 09-30-2007, 04:30 AM

Don't use rpms, they can cause all sorts of problems.

1) First, download the latest libiw here:
http://www.hpl.hp.com/personal/Jean_...ools.29.tar.gz

2) Untar it and open a terminal and 'cd' into the newly created directory.

3) Edit the 'Makefile'

change:

Code:

## Installation directory. By default, go in /usr/local.
## Distributions should probably use /, but they probably know better...
ifndef PREFIX
  PREFIX = /usr/local
endif

to:

Code:

## Installation directory. By default, go in /usr/local.
## Distributions should probably use /, but they probably know better...
ifndef PREFIX
  PREFIX = /usr
endif

4) run 'make', then 'su' into root and run 'make install'

Now it's installed properly so just try compiling conky again (you don't need the --enable-shared here. I thought libiw used a configure script, it's just a makefile.

BashTin · 09-30-2007, 05:05 AM

conky -v
Conky 1.4.7 compiled Sun Sep 30 09:55:35 2007 for Linux 2.6.21.6 (i686)

Thanks!!

OK now if you fancy helping me configure it I not doubt will be posting in the none to distant future if I can't get it to do everything I need.

Thanks again for your assistance, BashTin :-)