doc: Update link to Objective-C book

gcc/ChangeLog:

	* doc/standards.texi (Standards): Update link to Objective-C book.

diff --git a/gcc/doc/standards.texi b/gcc/doc/standards.texi
index b54502add4128cf4bb15753ab731f6987c01f8e7..5ea724f56571a97bd7934e036c83ae8f5ea3221d 100644 (file)
--- a/gcc/doc/standards.texi
+++ b/gcc/doc/standards.texi
@@ -280,7 +280,7 @@ works with the Apple/NeXT Objective-C runtime library.
 There is no formal written standard for Objective-C or Objective-C++@.
 The authoritative manual on traditional Objective-C (1.0) is
 ``Object-Oriented Programming and the Objective-C Language'':
-@uref{http://www.gnustep.org/@/resources/@/documentation/@/ObjectivCBook.pdf}
+@uref{https://gnustep.github.io/@/resources/@/documentation/@/ObjectivCBook.pdf
 is the original NeXTstep document.
 
 The Objective-C exception and synchronization syntax (that is, the