[Libunwind-devel] make check failure on x86_64 (_Ux86_64_getcontext)

[Paul Pluzhnikov]

Greetings,

I am getting a "make check" error on x86_64 from current trunk that I
don't quite understand:

/bin/sh ../libtool  --tag=CC   --mode=link gcc  -g -O2 -fexceptions
-Wall -Wsign-compare   -o Ltest-init-local-signal
Ltest-init-local-signal.o Ltest-init-local-signal-lib.o
../src/libunwind-x86_64.la
libtool: link: gcc -g -O2 -fexceptions -Wall -Wsign-compare -o
.libs/Ltest-init-local-signal Ltest-init-local-signal.o
Ltest-init-local-signal-lib.o  ../src/.libs/libunwind-x86_64.so
/usr/bin/ld: Ltest-init-local-signal.o: undefined reference to symbol
'_Ux86_64_getcontext'
//usr/local/google/home/ppluzhnikov/Archive/libunwind.git/libunwind/build/src/.libs/libunwind.so.8:
error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
Makefile:1127: recipe for target 'Ltest-init-local-signal' failed
make[1]: *** [Ltest-init-local-signal] Error 1

AFAICT nothing here changed in a long while, so I don't understand why
I am getting the failure and others don't.

_Ux86_64_getcontext is in libunwind.{a,so}, but not on
libunwind-x86_64.{a,so} and the test links the latter.

This is on "Ubuntu 14.04 LTS" using "gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4"

Thanks!
-- 
Paul Pluzhnikov