K 10
svn:author
V 6
iulius
K 8
svn:date
V 27
2021-01-05T16:06:30.290803Z
K 7
svn:log
V 580
Add -fstack-protector-strong for linking if recognized

Building innd on Solaris fails if the compiler does not have
amongst its flags -fstack-protector-strong for linking.

Undefined                       first referenced
 symbol                             in file
__stack_chk_fail                    art.o
__stack_chk_guard                   art.o
ld: fatal: symbol referencing errors

Also, if the compiler does not support -fstack-protector-strong
for linking, assume it will not work, and remove that flag even
for compiling (AIX typically does not have libssp_nonshared). 

END
