My program run like this:
$ snmpbulkwalkap -v 2c -c public 192.168.0.50

I compile with "-g" option:
...
/bin/sh ../libtool --mode=compile gcc -I../include -I../include -I.. -I./.. -I./../snmplib -I./../agent -I../agent/helpers -I./../agent/mibgroup -g -O2 -Dlinux -c -o snmpbulkwalkap.lo snmpbulkwalkap.c
rm -f .libs/snmpbulkwalkap.lo
gcc -I../include -I../include -I.. -I./.. -I./../snmplib -I./../agent -I../agent/helpers -I./../agent/mibgroup -g -O2 -Dlinux -c snmpbulkwalkap.c -fPIC -DPIC -o .libs/snmpbulkwalkap.lo
gcc -I../include -I../include -I.. -I./.. -I./../snmplib -I./../agent -I../agent/helpers -I./../agent/mibgroup -g -O2 -Dlinux -c snmpbulkwalkap.c -o snmpbulkwalkap.o >/dev/null 2>&1
mv -f .libs/snmpbulkwalkap.lo snmpbulkwalkap.lo
/bin/sh ../libtool --mode=link gcc -o snmpbulkwalkap snmpbulkwalkap.lo -L../snmplib -L../agent -L../agent/helpers ../snmplib/libnetsnmp.la -lcrypto -lm
gcc -o .libs/snmpbulkwalkap snmpbulkwalkap.o -L/home/tcma/net-snmp-5.1.1/snmplib -L/home/tcma/net-snmp-5.1.1/agent -L/home/tcma/net-snmp-5.1.1/agent/helpers ../snmplib/.libs/libnetsnmp.so -lcrypto -lm -Wl,--rpath -Wl,/usr/local/lib
creating snmpbulkwalkap

Inside kdevelop, I set two breakpoints at lines:
fprintf(stderr, "tcma 1 argc %d\n", argc);
fprintf(stderr, "tcma 2\n");

When the debugger is started inside kdevelop, it stopped at the first breakpoint, when I click the "Step over" button, the debugger do not single step to next line.
Why?

This is the gdb output:

gdb /home/tcma/net-snmp-5.1.1/apps/.libs/snmpbulkwalkap -fullname -nx -quiet
(gdb) set edit off
(gdb) set confirm off
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb)
(gdb)
(gdb) set print static-members off
(gdb) tty /dev/pts/18
(gdb) set width 0
(gdb) set height 0
(gdb) set stop-on 1
(gdb) handle SIG32 pass nostop noprint
(gdb) handle SIG43 pass nostop noprint
(gdb) set print asm-demangle on
(gdb) cd /home/tcma/net-snmp-5.1.1/apps
(gdb) set args -v 2c -c public 192.168.0.50
(gdb) break snmpbulkwalkap.c:200
Breakpoint 1 at 0x401452: file snmpbulkwalkap.c, line 200.
(gdb) break snmpbulkwalkap.c:201
Breakpoint 2 at 0x401495: file snmpbulkwalkap.c, line 201.
(gdb) run
warning:
Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
(gdb) backtrace
Stopped due to shared library event
#0 0x0000000000401080 in _start ()
(gdb) frame 0
#0 0x0000000000401080 in _start ()
(gdb) next
Single stepping until exit from function _start,
which has no line number information.


GNU gdb 6.0
kdevelop 3.0.4 on kde 3.2.2.
Linux version 2.6.7-gentoo-r11 (root@rose) (gcc version 3.4.1 (Gentoo Linux 3.4.1, ssp-3.4-2, pie-8.7.6.3))