From 88866099db3973a1b4d3bb0fb3f45efea067e4e8 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Tue, 23 Oct 2012 22:05:28 +0000
Subject: [PATCH] Refactor parts of run-program-prefix and built-program-cmd
 into new run-via-rtld-prefix.

---
 ChangeLog  |  7 +++++++
 Makeconfig | 31 ++++++++++++++++++++++---------
 2 files changed, 29 insertions(+), 9 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a3a6d34269..19791f6395 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-10-23  Joseph Myers  <joseph@codesourcery.com>
+	    Jim Blandy  <jimb@codesourcery.com>
+
+	* Makeconfig (run-via-rtld-prefix): New variable.
+	(run-program-prefix): Define in terms of $(run-via-rtld-prefix).
+	(built-program-cmd): Likewise.
+
 2012-10-22  Andreas Jaeger  <aj@suse.de>
 
 	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h (O_RSYNC): Define to
diff --git a/Makeconfig b/Makeconfig
index 9dadc3f177..0a78b76e3a 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -573,17 +573,30 @@ sysdep-library-path = \
 $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\
 				       $(filter -Wl$(comma)-rpath-link=%,\
 						$(sysdep-LDFLAGS)))))
-run-program-prefix = $(if $(filter $(notdir $(built-program-file)),\
-				   $(tests-static) $(xtests-static)),, \
-			  $(elf-objpfx)$(rtld-installed-name) \
-			  --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)))
+# $(run-via-rtld-prefix) is a command that, when prepended to the name
+# of a program built with the newly built library, produces a command
+# that, executed on the host for which the library is built, runs that
+# program.  For the statically-linked %-bp test programs, and for
+# tests listed in tests-static or xtests-static, it is empty.
+run-via-rtld-prefix =							      \
+  $(if $(strip $(filter $(notdir $(built-program-file)),		      \
+			$(tests-static) $(xtests-static))		      \
+	       $(filter %-bp,$(built-program-file))),,			      \
+       $(elf-objpfx)$(rtld-installed-name)				      \
+	 --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)))
 else
-run-program-prefix =
+run-via-rtld-prefix =
 endif
-# Never use $(run-program-prefix) for the statically-linked %-bp test programs
-built-program-cmd = $(patsubst %,$(run-program-prefix),\
-			$(filter-out %-bp,$(built-program-file))) \
-		    $(built-program-file)
+# $(run-via-rtld-prefix) is a command that, when prepended to the name
+# of a program built with the newly built library, produces a command
+# that, executed on the build system on which "make" is run, runs that
+# program.
+run-program-prefix = $(run-via-rtld-prefix)
+# $(built-program-cmd) is a command that, executed on the build system
+# on which "make" is run, runs the newly built program that is the
+# second dependency of the makefile target in which
+# $(built-program-cmd) is used.
+built-program-cmd = $(run-via-rtld-prefix) $(built-program-file)
 
 ifndef LD
 LD := ld -X