[PATCH] Fix detection of "r_fs" and "r_gs" on FreeBSD.

[John Baldwin <jhb@FreeBSD.org>]

Include <sys/types.h> as a prerequisite for <machine/reg.h> when checking for
the r_fs and r_gs members in struct reg.  Note that the previous test for
<machine/reg.h> already includes <sys/types.h> as a prerequisite.

gdb/ChangeLog:

	* configure.ac: Include <sys/types.h when checking for "r_fs" in
	"struct reg".
	* configure: Regenerate.
---
 gdb/ChangeLog    | 6 ++++++
 gdb/configure    | 6 ++++--
 gdb/configure.ac | 3 ++-
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index fe8fd6c..f37300e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2016-01-18  John Baldwin  <jhb@FreeBSD.org>
+
+	* configure.ac: Include <sys/types.h when checking for "r_fs" in
+	"struct reg".
+	* configure: Regenerate.
+
 2016-01-15  Sandra Loosemore  <sandra@codesourcery.com>
 
 	* charset.c [PHONY_ICONV] (GDB_DEFAULT_HOST_CHARSET):
diff --git a/gdb/configure b/gdb/configure
index 4abedd3..11f91e3 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -12782,7 +12782,8 @@ fi
 
 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
-ac_fn_c_check_member "$LINENO" "struct reg" "r_fs" "ac_cv_member_struct_reg_r_fs" "#include <machine/reg.h>
+ac_fn_c_check_member "$LINENO" "struct reg" "r_fs" "ac_cv_member_struct_reg_r_fs" "#include <sys/types.h>
+#include <machine/reg.h>
 "
 if test "x$ac_cv_member_struct_reg_r_fs" = x""yes; then :
 
@@ -12792,7 +12793,8 @@ _ACEOF
 
 
 fi
-ac_fn_c_check_member "$LINENO" "struct reg" "r_gs" "ac_cv_member_struct_reg_r_gs" "#include <machine/reg.h>
+ac_fn_c_check_member "$LINENO" "struct reg" "r_gs" "ac_cv_member_struct_reg_r_gs" "#include <sys/types.h>
+#include <machine/reg.h>
 "
 if test "x$ac_cv_member_struct_reg_r_gs" = x""yes; then :
 
diff --git a/gdb/configure.ac b/gdb/configure.ac
index e2a7e68..8f9486e 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1448,7 +1448,8 @@ fi
 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
-                 [#include <machine/reg.h>])
+                 [#include <sys/types.h>
+#include <machine/reg.h>])
 
 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
 # Older amd64 Linux's don't have the fs_base and gs_base members of
-- 
2.7.0