I am trying to compile a gpsd client on a i686 bullseye machine. It
appears the compiler can find the include file for libgps, gps.h.
However, the linker cannot find the library.
gcc -Wall -ggdb -lm -lgps -o gpsclient gpsclient.c
gpsclient.c:64:2: warning: #warning Setting up for API version 9.0 [-Wcpp]
64 | #warning Setting up for API version 9.0
| ^~~~~~~
/usr/bin/ld: /tmp/ccCsxl8F.o: in function `exitHandler':
/home/charles/versioned/gpsclient/gpsclient.c:130: undefined reference to
`gps_stream'
/usr/bin/ld: /home/charles/versioned/gpsclient/gpsclient.c:131: undefined
reference to `gps_close'
/usr/bin/ld: /tmp/ccCsxl8F.o: in function `showData':
/home/charles/versioned/gpsclient/gpsclient.c:229: undefined reference to
`timespec_to_iso8601'
/usr/bin/ld: /tmp/ccCsxl8F.o: in function `main':
/home/charles/versioned/gpsclient/gpsclient.c:474: undefined reference to
`gps_open'
/usr/bin/ld: /home/charles/versioned/gpsclient/gpsclient.c:477: undefined
reference to `gps_errstr'
/usr/bin/ld: /home/charles/versioned/gpsclient/gpsclient.c:503: undefined
reference to `gps_stream'
/usr/bin/ld: /home/charles/versioned/gpsclient/gpsclient.c:506: undefined
reference to `gps_waiting'
/usr/bin/ld: /home/charles/versioned/gpsclient/gpsclient.c:509: undefined
reference to `gps_read'
/usr/bin/ld: /home/charles/versioned/gpsclient/gpsclient.c:515: undefined
reference to `gps_stream'
collect2: error: ld returned 1 exit status
Compilation exited abnormally with code 1 at Sun Jul 12 12:11:46
This compiles and runs on Buster on AMD64 architecture.
I have run ldconfig manually.
root@white:/usr/lib/i386-linux-gnu# ldconfig -v | fgrep gps
ldconfig: Can't stat /usr/local/lib/i386-linux-gnu: No such file or directory
ldconfig: Can't stat /usr/local/lib/i686-linux-gnu: No such file or directory
ldconfig: Can't stat /lib/i686-linux-gnu: No such file or directory
ldconfig: Can't stat /usr/lib/i686-linux-gnu: No such file or directory
ldconfig: Path `/lib/i386-linux-gnu' given more than once
ldconfig: Path `/usr/lib/i386-linux-gnu' given more than once
ldconfig: /lib/i386-linux-gnu/ld-2.30.so is the dynamic linker, ignoring
libgps.so.26 -> libgps.so.26.0.0
root@white:/usr/lib/i386-linux-gnu# uname -a
Linux white 5.7.0-1-686 #1 SMP Debian 5.7.6-1 (2020-06-24) i586 GNU/Linux
root@white:/usr/lib/i386-linux-gnu#
This also works on buster AMD64 when I have gpsd version 3.20.12 loaded
from buster backports. This is the same version that is in bullseye.
--
Does anybody read signatures any more?
https://charlescurley.com
https://charlescurley.com/blog/
