add a specific configure check for sys/random.h (closes #28932)

Misc/NEWS

@@ -10,6 +10,8 @@ What's New in Python 2.7.14?
 Core and Builtins
 -----------------
 
+- Issue #28932: Do not include <sys/random.h> if it does not exist.
+
 Library
 -------
 

Python/random.c

@@ -3,7 +3,7 @@
 #include <windows.h>
 #else
 #include <fcntl.h>
-#if defined(HAVE_GETRANDOM) || defined(HAVE_GETENTROPY)
+#ifdef HAVE_SYS_RANDOM_H
 #include <sys/random.h>
 #endif
 #endif

configure

@@ -7054,7 +7054,7 @@ shadow.h signal.h stdint.h stropts.h termios.h thread.h \
 unistd.h utime.h \
 sys/audioio.h sys/bsdtty.h sys/epoll.h sys/event.h sys/file.h sys/loadavg.h \
 sys/lock.h sys/mkdev.h sys/modem.h \
-sys/param.h sys/poll.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
+sys/param.h sys/poll.h sys/random.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
 sys/termio.h sys/time.h \
 sys/times.h sys/types.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
 sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \

configure.ac

@@ -1702,7 +1702,7 @@ shadow.h signal.h stdint.h stropts.h termios.h thread.h \
 unistd.h utime.h \
 sys/audioio.h sys/bsdtty.h sys/epoll.h sys/event.h sys/file.h sys/loadavg.h \
 sys/lock.h sys/mkdev.h sys/modem.h \
-sys/param.h sys/poll.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
+sys/param.h sys/poll.h sys/random.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
 sys/termio.h sys/time.h \
 sys/times.h sys/types.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
 sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \

pyconfig.h.in

@@ -781,6 +781,9 @@
 /* Define to 1 if you have the <sys/poll.h> header file. */
 #undef HAVE_SYS_POLL_H
 
+/* Define to 1 if you have the <sys/random.h> header file. */
+#undef HAVE_SYS_RANDOM_H
+
 /* Define to 1 if you have the <sys/resource.h> header file. */
 #undef HAVE_SYS_RESOURCE_H