diff --git a/man3/matherr.3 b/man3/matherr.3
index 5c87b5512..5c4f87114 100644
--- a/man3/matherr.3
+++ b/man3/matherr.3
@@ -36,21 +36,6 @@ matherr \- SVID math library exception handling
 .B extern _LIB_VERSION_TYPE _LIB_VERSION;
 .fi
 .PP
-.in -4n
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.PP
-.in
-.ad l
-.BR significand (),
-.BR significandf (),
-.BR significandl ():
-.RS 4
-/* Since glibc 2.19: */ _DEFAULT_SOURCE
-    || /* Glibc versions <= 2.19: */ _SVID_SOURCE
-.RE
-.ad b
-.PP
 Link with \fI\-lm\fP.
 .SH DESCRIPTION
 The System V Interface Definition (SVID) specifies that various