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 --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index e5635d8..6eb4936 100644 (file)
--- 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 (file)
--- 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".