Error Linking rfcsdk sample program (linux)

[former_member299079]

Hello,

I downloaded the Linux RFCSDK (RFC_linux_ia36_sdk.SAR, version info -> @(#)LIBRFC (c) SAP AG: Version: 640 Patch level: 0 Patch number: 129 thread-safe build 32 bit) onto my system today and am having trouble linking one of the sample programs (sapinfo.c). (This is the only one I tried.) Here are the first few error messages:

/opt/gcc-4.0.2/bin/gcc -I ../include -L ../lib sapinfo.c -o sapinfo -lrfc -lm -ldl

../lib/librfc.a(cpictlib.o)(.text+0x30cdb): In function `find_best_posix_clock':

: undefined reference to `clock_getcpuclockid'

../lib/librfc.a(cpictlib.o)(.text+0x30d5a): In function `find_best_posix_clock':

: undefined reference to `clock_gettime'

../lib/librfc.a(cpictlib.o)(.text+0x30dbe): In function `get_posix_nanoseconds':

: undefined reference to `clock_gettime'

../lib/librfc.a(cpictlib.o)(.text+0x4b467): In function `NiIInitSocket(int, SI_SOCK *)':

: undefined reference to `__throw'

../lib/librfc.a(cpictlib.o)(.text+0x4b471): In function `NiIInitSocket(int, SI_SOCK *)':

: undefined reference to `__start_cp_handler'

../lib/librfc.a(cpictlib.o)(.text+0x4b47e): In function `NiIInitSocket(int, SI_SOCK *)':

: undefined reference to `__check_eh_spec'

../lib/librfc.a(cpictlib.o)(.text+0x4b483): In function `NiIInitSocket(int, SI_SOCK *)':

: undefined reference to `__throw'

../lib/librfc.a(cpictlib.o)(.text+0x4b48c): In function `NiIInitSocket(int, SI_SOCK *)':

: undefined reference to `__cp_pop_exception'

../lib/librfc.a(cpictlib.o)(.text+0x4b498): In function `NiIInitSocket(int, SI_SOCK *)':

: undefined reference to `terminate(void)'

The linker eventually gives up with:

HSIMPL type_info function':

: undefined reference to `__rtti_user'

../lib/librfc.a(cpictlib.o)(.gnu.linkonce.t.__tf15NIHSIMPL_LINEAR+0x29): In function `NIHSIMPL_LINEAR type_info function':

: undefined reference to `__rtti_si'

../lib/librfc.a(cpictlib.o)(.gnu.linkonce.d.__vt_8NIHSIMPL+0x8): undefined reference to `__pure_virtual'

../lib/librfc.a(cpictlib.o)(.gnu.linkonce.d.__vt_8NIHSIMPL+0x10): undefined reference to `__pure_virtual'

../lib/librfc.a(cpictlib.o)(.gnu.linkonce.d.__vt_8NIHSIMPL+0x14): undefined reference to `__pure_virtual'

../lib/librfc.a(cpictlib.o)(.gnu.linkonce.d.__vt_8NIHSIMPL+0x18): undefined reference to `__pure_virtual'

../lib/librfc.a(cpictlib.o)(.gnu.linkonce.d.__vt_8NIHSIMPL+0x1c): undefined reference to `__pure_virtual'

../lib/librfc.a(cpictlib.o)(.gnu.linkonce.d.__vt_8NIHSIMPL+0x20): more undefined references to `__pure_virtual' follow

collect2: ld returned 1 exit status

I get the same issue if I try to compile with g++ or with version 3.4.5-2 of gcc/g++. My system is:

Linux version 2.6.9-34.ELsmp (bhcompile@hs20-bc1-7.build.redhat.com) (gcc version 3.4.5 20051201 (Red Hat 3.4.5-2)) #1 SMP Fri Feb 24 16:54:53 EST 2006

I appreciate any help on this matter. Several hours of searching via Google or on the SDN did not turn up any useful clues.

Regards,

Mike Davis.

[Former Member]

I had a similar problem, that only happened on a particular system (Ubuntu 12.04):

undefined symbol: clock_getcpuclockid

I discovered that when the system where I compile the lib has libc6 version 2.15, I had to also tell the linker to include "librt" library ("-lrt").

In a system with libc6 version 2.17 (Ubuntu 14.04), this was not necessary.

I hope this helps you or anyone with a similar problem.