fix including <sys/mman.h>

Make sure everybody who needs stuff from <sys/mman.h> actually includes it,
and dropped the include from xf86_OSlib.h.

Check for all symbols defined by Open Group spec.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1412>

Xext/shm.c

@@ -35,9 +35,7 @@ in this Software without prior written authorization from The Open Group.
 #include <sys/types.h>
 #include <sys/ipc.h>
 #include <sys/shm.h>
-#ifdef HAVE_MEMFD_CREATE
 #include <sys/mman.h>
-#endif
 #include <unistd.h>
 #include <sys/stat.h>
 #include <fcntl.h>

hw/xfree86/fbdevhw/fbdevhw.c

@@ -4,6 +4,7 @@
 #endif
 
 #include <string.h>
+#include <sys/mman.h>
 
 #include "xf86.h"
 #include "xf86Modes.h"

hw/xfree86/os-support/bsd/alpha_video.c

@@ -28,12 +28,13 @@
 #endif
 
 #include <errno.h>
+#include <sys/mman.h>
+#include <sys/param.h>
 #include <X11/X.h>
 
 #include "xf86.h"
 #include "xf86Priv.h"
 
-#include <sys/param.h>
 #ifndef __NetBSD__
 #include <sys/sysctl.h>
 #endif

hw/xfree86/os-support/bsd/arm_video.c

@@ -61,6 +61,7 @@
 #endif
 
 #include <errno.h>
+#include <sys/mman.h>
 #include <X11/X.h>
 
 #include "xf86.h"

hw/xfree86/os-support/bsd/i386_video.c

@@ -27,13 +27,12 @@
 #include <xorg-config.h>
 #endif
 
-#include <X11/X.h>
-#include "xf86.h"
-#include "xf86Priv.h"
-
 #include <errno.h>
 #include <sys/mman.h>
+#include <X11/X.h>
 
+#include "xf86.h"
+#include "xf86Priv.h"
 #include "xf86_OSlib.h"
 #include "xf86OSpriv.h"
 

hw/xfree86/os-support/bsd/ppc_video.c

@@ -27,7 +27,9 @@
 #include <xorg-config.h>
 #endif
 
+#include <sys/mman.h>
 #include <X11/X.h>
+
 #include "xf86.h"
 #include "xf86Priv.h"
 

hw/xfree86/os-support/linux/lnx_video.c

@@ -29,8 +29,9 @@
 
 #include <errno.h>
 #include <string.h>
-
+#include <sys/mman.h>
 #include <X11/X.h>
+
 #include "input.h"
 #include "scrnintstr.h"
 

hw/xfree86/os-support/xf86_OSlib.h

@@ -128,7 +128,6 @@ extern _X_HIDDEN char xf86SolarisFbDev[PATH_MAX];
 #endif                          /* !VT_ACKACQ */
 
 #if defined(SVR4)
-#include <sys/mman.h>
 #if !(defined(__sun) && defined (SVR4))
 #define DEV_MEM "/dev/pmem"
 #endif
@@ -154,7 +153,6 @@ extern _X_HIDDEN char xf86SolarisFbDev[PATH_MAX];
 
 #include <errno.h>
 
-#include <sys/mman.h>
 #ifdef __linux__
 #define HAS_USL_VTS
 #include <sys/kd.h>
@@ -181,7 +179,6 @@ extern _X_HIDDEN char xf86SolarisFbDev[PATH_MAX];
 #include <errno.h>
 
 #include <sys/types.h>
-#include <sys/mman.h>
 
 #endif                          /* CSRG_BASED */