[binutils-gdb] gdbserver Makefile: don't delete intermediary files

[Simon Marchi <simark at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=50a421ac3ad82886afb0916b112ddeac4f9f73dc

commit 50a421ac3ad82886afb0916b112ddeac4f9f73dc
Author: Simon Marchi <simon.marchi@ericsson.com>
Date:   Mon Sep 4 19:02:56 2017 +0200

    gdbserver Makefile: don't delete intermediary files
    
    If you "make" from scratch in gdbserver/, you'll notice that make
    deletes the files it considers as intermediary at the end:
    
      $ make clean && make
      ...
      rm i386-mmx-linux-generated.c x32-avx-avx512-linux-generated.c ...
    
    Then, if you type make again, make will rebuild these files and rebuild
    gdbserver.  To avoid this, we can add the .SECONDARY special target.  If
    it has no pre-requisites, all intermediary files will be kept.
    
    gdb/gdbserver/ChangeLog:
    
    	* Makefile.in (.SECONDARY): Define target.

Diff:
---
 gdb/gdbserver/ChangeLog   | 4 ++++
 gdb/gdbserver/Makefile.in | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index e5635d8..6eb4936 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,7 @@
+2017-09-04  Simon Marchi  <simon.marchi@ericsson.com>
+
+	* Makefile.in (.SECONDARY): Define target.
+
 2017-09-03  Simon Marchi  <simon.marchi@ericsson.com>
 
 	* linux-low.c (linux_wait_1): Adjust.
diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
index 6cd0959..e43a929 100644
--- a/gdb/gdbserver/Makefile.in
+++ b/gdb/gdbserver/Makefile.in
@@ -632,4 +632,7 @@ endif
 # Disable implicit make rules.
 include $(srcdir)/../disable-implicit-rules.mk
 
+# Do not delete intermediate files (e.g. *-generated.c).
+.SECONDARY:
+
 # This is the end of "Makefile.in".