[Libunwind-devel] [PATCH 1/4] Check for <sys/ptrace.h> before including it

[Joel Brobecker]

On ia64-hpux version 11.31, <sys/ptrace.h> has been removed.
This patch adds a configure check for this header file, and only
includes <sys/ptrace.h> if it exists.

---
 configure.in               |    2 +-
 src/ptrace/_UPT_internal.h |    2 ++
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/configure.in b/configure.in
index 58c0ff9..724b124 100644
--- a/configure.in
+++ b/configure.in
@@ -37,7 +37,7 @@ dnl Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS(asm/ptrace_offsets.h endian.h sys/endian.h execinfo.h \
                ia64intrin.h sys/uc_access.h unistd.h signal.h sys/types.h \
-               sys/procfs.h)
+               sys/procfs.h sys/ptrace.h)
 
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
diff --git a/src/ptrace/_UPT_internal.h b/src/ptrace/_UPT_internal.h
index ff11e73..bfc26b0 100644
--- a/src/ptrace/_UPT_internal.h
+++ b/src/ptrace/_UPT_internal.h
@@ -33,7 +33,9 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
SOFTWARE.  */
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
+#ifdef HAVE_SYS_PTRACE_H
 #include <sys/ptrace.h>
+#endif
 #ifdef HAVE_SYS_PROCFS_H
 #include <sys/procfs.h>
 #endif
-- 
1.7.0.4