This patch includes

   * mingw-w64-headers/include/winnt.h: compile fixes for1 gcc-4.9.3
   * mingw-w64-headers/crt/math.h: Likewise
   * mingw-w64-headers/crt/float.h (FLT_EPSILON,DBL_EPSILON,LDBL_EPSILON): Add
   symbols.
   * mingw-w64-headers/crt/stat.h (S_ISLNK,S_ISSOCK,S_ISUID,S_ISGID,S_ISLINK):
   Add symbols.
   (lstat): Add function.
   * mingw-w64-headers/crt/_mingw_stat64.h: Likewise
   * mingw-w64-headers/crt/stdlib.h (realpath): Add function.

Needed for building with gcc-4.9.3 and using with cross-libtool-2.4.6.

Upstream status: not yet presented upstream.

diff --git a/mingw-w64-headers/crt/float.h b/mingw-w64-headers/crt/float.h
index 5874f4e..bdf4ead 100644
--- a/mingw-w64-headers/crt/float.h
+++ b/mingw-w64-headers/crt/float.h
@@ -22,6 +22,15 @@
 #if (__GNUC__ < 4)
 #error Corrupt install of gcc-s internal headers, or search order was changed.
 #else
+
+        /* From gcc-4.9.3 float.h.  */
+        #undef FLT_EPSILON
+        #undef DBL_EPSILON
+        #undef LDBL_EPSILON
+        #define FLT_EPSILON	__FLT_EPSILON__
+        #define DBL_EPSILON	__DBL_EPSILON__
+        #define LDBL_EPSILON	__LDBL_EPSILON__
+
 	/* #include_next <float_ginclude.h> */

    	/* Number of decimal digits, q, such that any floating-point number with q
diff --git a/mingw-w64-headers/crt/math.h b/mingw-w64-headers/crt/math.h
index 1e970f4..99a332f 100644
--- a/mingw-w64-headers/crt/math.h
+++ b/mingw-w64-headers/crt/math.h
@@ -216,6 +216,7 @@ extern "C" {
 #endif
   }

+#if 0
   __CRT_INLINE long double __cdecl fabsl (long double x)
   {
 #ifdef __arm__
@@ -226,6 +227,7 @@ extern "C" {
     return res;
 #endif
   }
+#endif

   __CRT_INLINE double __cdecl fabs (double x)
   {
@@ -905,7 +907,7 @@ __mingw_choose_expr (                                         \
 /* 7.12.7.3  */
   extern double __cdecl hypot (double, double) __MINGW_ATTRIB_DEPRECATED_MSVC2005; /* in libmoldname.a */
   extern float __cdecl hypotf (float x, float y);
-#ifndef __CRT__NO_INLINE
+#if 0 //ndef __CRT__NO_INLINE
   __CRT_INLINE float __cdecl hypotf (float x, float y) { return (float) hypot ((double)x, (double)y);}
 #endif
   extern long double __cdecl hypotl (long double, long double);
og/gnu?id=bbc2fb0d52128c85c92251ed36d8063b3dcf3c3a'>gnu</a>/<a href='/guix/log/gnu/services?id=bbc2fb0d52128c85c92251ed36d8063b3dcf3c3a'>services</a>/<a href='/guix/log/gnu/services/authentication.scm?id=bbc2fb0d52128c85c92251ed36d8063b3dcf3c3a'>authentication.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/services/authentication.scm?id=bbc2fb0d52128c85c92251ed36d8063b3dcf3c3a&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-11-30 01:08:55 +0100'>2021-11-30</span></td><td><a href='/guix/commit/gnu/services/authentication.scm?id=892f1b7273d57b25940700877a02618fe826cc08'>services: Accept &lt;inferior-package&gt;s in lieu of &lt;package&gt;s.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/authentication.scm (fprintd-configuration)
(nslcd-configuration): Substitute file-like objects for package ones.
* gnu/services/cgit.scm (cgit-configuration, opaque-cgit-configuration):
Likewise.
* gnu/services/cups.scm (package-list?, cups-configuration): Likewise.
* gnu/services/dns.scm (verify-knot-configuration)
(ddclient-configuration): Likewise.
* gnu/services/docker.scm (docker-configuration): Likewise.
* gnu/services/file-sharing.scm (transmission-daemon-configuration): Likewise.
* gnu/services/getmail.scm (getmail-configuration): Likewise.
* gnu/services/mail.scm (dovecot-configuration)
(opaque-dovecot-configuration): Likewise.
* gnu/services/messaging.scm (prosody-configuration)
(opaque-prosody-configuration): Likewise.
* gnu/services/monitoring.scm (zabbix-server-configuration)
(zabbix-agent-configuration): Likewise.
* gnu/services/networking.scm (opendht-configuration): Likewise.
* gnu/services/pm.scm (tlp-configuration): Likewise.
* gnu/services/telephony.scm (jami-configuration): Likewise.
* gnu/services/virtualization.scm (libvirt-configuration)
(qemu-guest-agent-configuration): Likewise.
* gnu/services/vpn.scm (openvpn-client-configuration): Likewise.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-03-10 18:01:47 +0100'>2021-03-10</span></td><td><a href='/guix/commit/gnu/services/authentication.scm?id=520bac7ed00a949a0391ad680de65a1498105c2b'>services: Prevent following symlinks during activation.</a><span class='msg-avail'>...<span class='msg-tooltip'>This addresses a potential security issue, where a compromised
service could trick the activation code in changing the permissions,
owner and group of arbitrary files.  However, this patch is
currently only a partial fix, due to a TOCTTOU (time-of-check to
time-of-use) race, which can be fixed once guile has bindings
to openat and friends.

Fixes: &lt;https://lists.gnu.org/archive/html/guix-devel/2021-01/msg00388.html&gt;

* gnu/build/activation.scm: new procedure 'mkdir-p/perms'.
* gnu/services/authentication.scm
  (%nslcd-activation, nslcd-service-type): use new procedure.
* gnu/services/cups.scm (%cups-activation): likewise.
* gnu/services/dbus.scm (dbus-activation): likewise.
* gnu/services/dns.scm (knot-activation): likewise.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Maxime Devos</td></tr>