[COMMITTED] math: Sync lgamma with CORE-MATH

[Adhemerval Zanella]

Checked on aarch64-linux-gnu.
---
 SHARED-FILES                        | 2 +-
 sysdeps/ieee754/dbl-64/e_lgamma_r.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/SHARED-FILES b/SHARED-FILES
index 30edf8cebc..fb15c2c92d 100644
--- a/SHARED-FILES
+++ b/SHARED-FILES
@@ -271,7 +271,7 @@ core-math:
   sysdeps/ieee754/dbl-64/e_cosh.c
   # src/binary64/tgamma/tgamma.c, revision 0f185e23
   sysdeps/ieee754/dbl-64/e_gamma_r.c
-  # src/binary64/lgamma/lgamma.c, revision 0413bb7e
+  # src/binary64/lgamma/lgamma.c, revision c537979a
   sysdeps/ieee754/dbl-64/e_lgamma_r.c
   # src/binary64/sinh/sinh.c, revision 8127b7ac
   sysdeps/ieee754/dbl-64/e_sinh.c
diff --git a/sysdeps/ieee754/dbl-64/e_lgamma_r.c b/sysdeps/ieee754/dbl-64/e_lgamma_r.c
index aab7b4d144..ce184f0461 100644
--- a/sysdeps/ieee754/dbl-64/e_lgamma_r.c
+++ b/sysdeps/ieee754/dbl-64/e_lgamma_r.c
@@ -4,7 +4,7 @@ value.
 Copyright (c) 2025 Alexei Sibidanov <sibid@uvic.ca>
 
 The original version of this file was copied from the CORE-MATH
-project (file src/binary64/lgamma/lgamma.c, revision 0413bb7e).
+project (file src/binary64/lgamma/lgamma.c, revision c537979a).
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -1349,7 +1349,7 @@ __ieee754_lgamma_r (double x, int *signgamp)
 	      z = ax - 2;
 	      fh = mulddd2 (z, fh, fl, &fl);
 	    }
-	  eps = fabs (fh) * 8.3e-20 + 1e-24;
+	  eps = fabs (fh) * 8.7e-20 + 1e-24;
 	}
       if (t >> 63)
 	{ // x<0 so use reflection formula
@@ -1359,7 +1359,7 @@ __ieee754_lgamma_r (double x, int *signgamp)
 	  ll += sl / sh;
 	  fh = -sumdd (fh, fl, lh, ll, &fl);
 	  fl = -fl;
-	  eps += fabs (lh) * 4e-22;
+	  eps += fabs (lh) * 8e-22;
 	  int64_t k = fx;
 	  *signgamp = 1 - 2 * (k & 1);
 	}
-- 
2.47.3