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);
1825b2d7'>gnu</a>/<a href='/guix/log/gnu/packages?id=b64665d1d31d618014f72be6a21a6a6b1825b2d7'>packages</a>/<a href='/guix/log/gnu/packages/graphviz.scm?id=b64665d1d31d618014f72be6a21a6a6b1825b2d7'>graphviz.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/packages/graphviz.scm?id=b64665d1d31d618014f72be6a21a6a6b1825b2d7&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-09-21 10:25:32 +0200'>2018-09-21</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=29ddbc5607c8ad7bb0622e10716e60396817a42d'>gnu: python-pydot: Update to 1.2.4.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-07-08 19:46:07 +0200'>2018-07-08</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=3ccad0f3daf413573647f99c54d0f45a5f53a554'>gnu: python-graphviz: Update to 0.8.4.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-05-17 01:00:50 -0400'>2018-05-17</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=539bf8f2c071b53834829259bb3fabf0390c5dc6'>Merge branch 'master' into core-updates</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-05-17 01:01:58 +0200'>2018-05-17</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=1df4d1b4d9d25d017fbda08da911303d5a40ac91'>gnu: python-graphviz: Update to 0.8.3.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-04-10 00:42:22 -0400'>2018-04-10</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=f89aa1521af69b0e1a1350c2380579788b0f8945'>Merge branch 'master' into core-updates</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-04-04 14:39:39 +0200'>2018-04-04</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=d56ecf623ec26134d4b1d47017f3530160234143'>gnu: Add dot2tex.</a><span class='msg-avail'>...</span></td><td>Mathieu Lirzin</td></tr>
<tr><td><span title='2018-03-29 17:34:41 +0200'>2018-03-29</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=5576cfabf3485e0cf794cc3de085a3578151ee64'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-03-25 00:36:35 +0100'>2018-03-25</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=4bd76eac1100dc9c8c9bc97f3ea97d1fdbdeb595'>gnu: python-graphviz: Update to 0.8.2.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-02-20 16:06:08 +0100'>2018-02-20</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=c0ad84ff1e74d2c69682fae9ed05bff88b20c4ab'>gnu: gts: Update phase style.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-11-07 21:03:15 +0100'>2017-11-07</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=2b295f5a2fc221020dd4ae8e090bd19a7e017872'>gnu: Add python-pydot.</a><span class='msg-avail'>...</span></td><td>Gábor Boskovits</td></tr>
<tr><td><span title='2017-10-23 14:49:31 +0200'>2017-10-23</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=6a4ad78dd6ec24590c3e26d410b1e995765f8767'>gnu: python-graphviz: Update to 0.8.1.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-10-10 23:09:40 +0200'>2017-10-10</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=6414410d7a2306ab6712801666aba973bc18ecac'>gnu: Add python-graphviz.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-10-05 00:45:38 +0200'>2017-10-05</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=7716ccd59c0c17f9399d73abec05001b775d100b'>Merge branch 'master' into staging</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-10-03 17:07:54 +0200'>2017-10-03</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=d109b1e85c5c1438e66dfc05ea4a018418edaf19'>Update e-mail for Theodoros Foradis.</a><span class='msg-avail'>...</span></td><td>Theodoros Foradis</td></tr>
<tr><td><span title='2017-07-14 15:39:26 +0530'>2017-07-14</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=cca9c756613201baec6655b4d7376727179e9951'>gnu: graphviz: Update to 2.40.1.</a><span class='msg-avail'>...</span></td><td>Arun Isaac</td></tr>
<tr><td><span title='2017-07-14 15:39:08 +0530'>2017-07-14</span></td><td><a href='/guix/commit/gnu/packages/graphviz.scm?id=2170cc76d4b2c47ccb831a706e8f40669c156e60'>gnu: graphviz: Use modify-phases.</a><span class='msg-avail'>...</span></td><td>Arun Isaac</td></tr>