tree 42610a0a256eb5fd677aa6f9bfc87bcc7acc9ab0
parent 353d8b829ea1a63c17d94388b1473e5b140e5ba8
author philippe <philippe@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1375562098 +0000
committer philippe <philippe@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1375562098 +0000

Update configure machinery to detect PTRACE_GETREGS
Using #ifdef PTRACE_GETREGS gives difficulties as in some
platforms (e.g. mips) PTRACE_GETREGS is not defined as a
preprocessor symbols unless linux/ptrace.h is included.
However, including linux/ptrace.h causes compilation error on some
other platforms

=> better detect that PTRACE_GETREGS can be used using the
configure machinery.

This should make vgdb PTRACE_GETREGS working again on
various platforms (x86/amd64/mips/...) as PTRACE_GETREGS
was disabled on all of these following r13471


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13482 a5019735-40e9-0310-863c-91ae7b9d1cf9