Switch to 32/64 datatypes:

* Makefile.in (OBSOLETE_FUNCTIONS): Add open acl aclcheck aclfrommode
	aclfrompbits aclfromtext aclsort acltomode acltopbits acltotext chown
	facl fchown fgetpos fopen freopen fseeko fsetpos fstat ftello
	ftruncate getegid geteuid getgid getgrent getgrgid getgrnam getgroups
	getpwuid getpwuid_r getuid initgroups lchown lseek lstat mknod mmap
	seekdir setegid seteuid setgid setgroups setregid setreuid setuid stat
	telldir truncate.
	(NEW_FUNCTIONS): Add _open64 acl32 aclcheck32 aclfrommode32
	aclfrompbits32 aclfromtext32 aclsort32 acltomode32 acltopbits32
	acltotext32 chown32 facl32 fchown32 fgetpos64 fopen64 freopen64
	fseeko64 fsetpos64 fstat64 ftello64 ftruncate64 getegid32 geteuid32
	getgid32 getgrent32 getgrgid32 getgrnam32 getgroups32 getpwuid32
	getpwuid_r32 getuid32 initgroups32 lchown32 lseek64 lstat64 mknod32
	mmap64 seekdir64 setegid32 seteuid32 setgid32 setgroups32 setregid32
	setreuid32 setuid32 stat64 telldir64 truncate64 to substitute the
	above.
	* cygserver_shm.h (class client_request_shm): Change uid_t and gid_t
	members to __uid32_t and __gid32_t.
	* cygwin.din: Add symbols acl32 aclcheck32 aclfrommode32
	aclfrompbits32 aclfromtext32 aclsort32 acltomode32 acltopbits32
	acltotext32 facl32 fgetpos64 fopen64 freopen64 fseeko64 fsetpos64
	_fstat64 ftello64 _lseek64 mknod32 _open64.
	* glob.c: Include perprocess.h.
	(globtilde): Call getpwuid32 and getuid32 instead of getpwuid and
	getuid.
	(g_lstat): Check for applications API version to call the appropriate
	typed gl_lstat function.
	(g_stat): Ditto for gl_stat.
	* shm.cc (client_request_shm::client_request_shm): Call geteuid32
	and getegid32 instead of geteuid and getegid throughout.
	* syscalls.cc (_open64): New alias for open.
	(_lseek64): New alias for lseek64.
	(_fstat64): New alias for fseek64.
	(mknod32): New function.
	(mknod): Calls mknod32 now.
	* winsup.h: Make function declarations for getuid32, geteuid32,
	and getpwuid32 accessible for plain C sources.  Add declarations
	for getegid32 and getpwnam.
	* include/cygwin/version.h: Bum API minor number to 78.
	* include/sys/cygwin.h: Guard C++ specific members of struct
	per_process against inclusion in plain C sources.
	* include/sys/mman.h (mman): Add guard to avoid type clash when
	compiling Cygwin.

winsup/cygwin/cygwin.din

@@ -102,22 +102,31 @@ access
 _access = access
 acl
 _acl = acl
+acl32
 aclcheck
 _aclcheck = aclcheck
+aclcheck32
 aclfrommode
 _aclfrommode = aclfrommode
+aclfrommode32
 aclfrompbits
 _aclfrompbits = aclfrompbits
+aclfrompbits32
 aclfromtext
 _aclfromtext = aclfromtext
+aclfromtext32
 aclsort
 _aclsort = aclsort
+aclsort32
 acltomode
 _acltomode = acltomode
+acltomode32
 acltopbits
 _acltopbits = acltopbits
+acltopbits32
 acltotext
 _acltotext = acltotext
+acltotext32
 acos
 _acos = acos
 acosf
@@ -389,6 +398,7 @@ fabsf
 _fabsf = fabsf
 facl
 _facl = facl
+facl32
 fchdir
 _fchdir = fchdir
 fchmod
@@ -424,6 +434,7 @@ fgetc
 _fgetc = fgetc
 fgetpos
 _fgetpos = fgetpos
+fgetpos64
 fgets
 _fgets = fgets
 fileno
@@ -452,6 +463,7 @@ fnmatch
 _fnmatch = fnmatch
 fopen
 _fopen = fopen
+fopen64
 fork
 _fork = fork
 fpathconf
@@ -467,6 +479,7 @@ free
 _free = free
 freopen
 _freopen = freopen
+freopen64
 frexp
 _frexp = frexp
 frexpf
@@ -477,9 +490,12 @@ fseek
 _fseek = fseek
 fseeko
 _fseeko = fseeko
+fseeko64
 fsetpos
 _fsetpos = fsetpos
+fsetpos64
 fstat64
+_fstat64 = fstat64
 fstatfs
 _fstatfs = fstatfs
 fsync
@@ -488,6 +504,7 @@ ftell
 _ftell = ftell
 ftello
 _ftello = ftello
+ftello64
 ftime
 _ftime = ftime
 ftruncate
@@ -766,6 +783,7 @@ lroundf
 lseek
 _lseek = lseek
 lseek64
+_lseek64 = lseek64
 lstat64
 mallinfo
 mallinfo
@@ -806,6 +824,7 @@ _mkdir = mkdir
 mkfifo
 mknod
 _mknod = mknod
+mknod32
 mkstemp
 _mkstemp = mkstemp
 mktemp
@@ -849,6 +868,7 @@ _ntohs = ntohs
 on_exit
 open
 _open = open
+_open64
 opendir
 _opendir = opendir
 openlog