krb5 commit [krb5-1.14]: Add RUN_TEST make variable

[Tom Yu]

https://github.com/krb5/krb5/commit/b5b98e1acb3d72f0398a9046d220512936941b5d
commit b5b98e1acb3d72f0398a9046d220512936941b5d
Author: Greg Hudson <ghudson at mit.edu>
Date:   Sun Oct 4 11:09:28 2015 -0400

    Add RUN_TEST make variable
    
    Add a pre.in variable to simplify running C test programs from
    Makefile rules.
    
    (cherry picked from commit 45c6e285be8042ffccdab13b5f78cd5ada8e7973)
    
    ticket: 8266

 src/config/pre.in |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/src/config/pre.in b/src/config/pre.in
index 401d1c6..b0d9015 100644
--- a/src/config/pre.in
+++ b/src/config/pre.in
@@ -413,6 +413,12 @@ APPUTILS_LIB	= -lapputils
 RUN_SETUP=@KRB5_RUN_ENV@
 RUN_VARS=@KRB5_RUN_VARS@
 
+# Appropriate command prefix for most C test programs: use libraries
+# from the build tree, avoid referencing the installed krb5.conf and
+# message catalog, and use valgrind when asked.
+RUN_TEST=$(RUN_SETUP) KRB5_CONFIG=$(top_srcdir)/config-files/krb5.conf \
+    LC_ALL=C $(VALGRIND)
+
 #
 # variables for --with-tcl=
 TCL_LIBS	= @TCL_LIBS@