[RTEMS Project] #2694: linking issue for htonl, etc when using -std=c99

[RTEMS trac]

#2694: linking issue for htonl, etc when using -std=c99
---------------------------+-----------------------------
 Reporter:  joel.sherrill  |      Owner:  sebastian.huber
     Type:  defect         |     Status:  new
 Priority:  normal         |  Milestone:  4.12
Component:  networking     |    Version:  4.12
 Severity:  normal         |   Keywords:
---------------------------+-----------------------------
 When -std=c99 is on the compile line, there is a linking error for
 undefined references to __htonl, __htons, __ntohl, and __ntohs. This test
 case is just for htonl but others should be similar.

 This likely impacts the 4.11 branch of rtems-libbsd as well but I was
 testing on master.

 Test case
 ======================
 #include <arpa/inet.h>

 int main(
   int argc,
   char **argv
 )
 {
   uint32_t v = (uint32_t) argc;
   uint32_t rc = htonl(v);
   return v;
 }
 ======================

 This script was what I used to find what caused the linking error to go
 away.

 ======================
 RTEMS_MAKEFILE_PATH=/home/joel/rtems-4.11-work/tools/4.12/i386-rtems4.12/pc586/

 i386-rtems4.12-gcc -std=c99 \
   -B${RTEMS_MAKEFILE_PATH}/lib -specs bsp_specs -qrtems  \
   -D_XOPEN_SOURCE=600 -D__USE_SVID main.c -lbsd -lm -lbsd

 i386-rtems4.12-gcc -std=c99 \
   -B${RTEMS_MAKEFILE_PATH}/lib -specs bsp_specs -qrtems  \
   -D__USE_SVID main.c -lbsd -lm -lbsd

 i386-rtems4.12-gcc -std=c99 \
   -B${RTEMS_MAKEFILE_PATH}/lib -specs bsp_specs -qrtems  \
   main.c -lbsd -lm -lbsd

 i386-rtems4.12-gcc \
   -B${RTEMS_MAKEFILE_PATH}/lib -specs bsp_specs -qrtems  \
   main.c -lbsd -lm -lbsd
 ======================

--
Ticket URL: <http://devel.rtems.org/ticket/2694>
RTEMS Project <http://www.rtems.org/>
RTEMS Project