Add includes.h to compat tests.

On platforms where closefrom returns void (eg glibc>=2.34) the prototype
for closefrom in its compat tests would cause compile errors.  Remove
this and have the tests pull in the compat headers in the same way as
the main code.  bz#3336.

openbsd-compat/regress/Makefile.in

@@ -7,7 +7,7 @@ VPATH=@srcdir@
 CC=@CC@
 LD=@LD@
 CFLAGS=@CFLAGS@
-CPPFLAGS=-I. -I.. -I$(srcdir) -I$(srcdir)/.. @CPPFLAGS@ @DEFS@
+CPPFLAGS=-I. -I.. -I../.. -I$(srcdir) -I$(srcdir)/.. -I$(srcdir)/../.. @CPPFLAGS@ @DEFS@
 EXEEXT=@EXEEXT@
 LIBCOMPAT=../libopenbsd-compat.a
 LIBS=@LIBS@

openbsd-compat/regress/closefromtest.c

@@ -14,6 +14,8 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "includes.h"
+
 #include <sys/types.h>
 #include <sys/stat.h>
 
@@ -24,8 +26,6 @@
 
 #define NUM_OPENS 10
 
-int closefrom(int);
-
 void
 fail(char *msg)
 {

openbsd-compat/regress/opensslvertest.c

@@ -14,6 +14,8 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "includes.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 

openbsd-compat/regress/snprintftest.c

@@ -17,6 +17,8 @@
 
 #define BUFSZ 2048
 
+#include "includes.h"
+
 #include <sys/types.h>
 #include <stdlib.h>
 #include <stdio.h>

openbsd-compat/regress/strduptest.c

@@ -14,6 +14,8 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "includes.h"
+
 #include <stdlib.h>
 #include <string.h>
 

openbsd-compat/regress/strtonumtest.c

@@ -17,6 +17,8 @@
 
 /* OPENBSD ORIGINAL: regress/lib/libc/strtonum/strtonumtest.c */
 
+#include "includes.h"
+
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>

openbsd-compat/regress/utimensattest.c

@@ -14,6 +14,8 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "includes.h"
+
 #include <sys/types.h>
 #include <sys/stat.h>