[PATCH 1/4] Document new hard requirement on GNU make

[Simon Marchi <simon.marchi@ericsson.com>]

From: Simon Marchi <simon.marchi@polymtl.ca>

As discussed in [1], it would be benificial for the GDB project to start
requiring GNU make to build its software.  It would allow using useful
GNU-specific constructs, such as pattern rules.  It would also allow
removing the alternative code paths in the Makefiles (guarded by
GMAKE_TRUE/GMAKE_FALSE), simplifying the Makefile code.

[1] https://sourceware.org/ml/gdb-patches/2016-11/msg00331.html

gdb/ChangeLog:

	* NEWS: Mention requirement of GNU make.
---
 gdb/NEWS | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gdb/NEWS b/gdb/NEWS
index a6b1282..d76ea81 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -11,6 +11,11 @@
   compiler.  The --disable-build-with-cxx configure option has been
   removed.
 
+* Building GDB and GDBserver now requires GNU make.
+
+  It is no longer supported to build GDB or GDBserver with another
+  implementation of the make program.
+
 * Native debugging on MS-Windows supports command-line redirection
 
   Command-line arguments used for starting programs on MS-Windows can
-- 
2.10.2