X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/090ab487d40c75e5e0e72b39a72cb1185170232e..53621a47bcdce24b63663d5402ac4826a5a5a32c:/src/Makefile

diff --git a/src/Makefile b/src/Makefile
index 9843b9ae4..ccaca1c13 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2,7 +2,7 @@
 # appropriate links, and then creating and running the main makefile in that
 # directory.
 
-# Copyright (c) University of Cambridge, 1995 - 2014
+# Copyright (c) University of Cambridge, 1995 - 2015
 # See the file NOTICE for conditions of use and distribution.
 
 # IRIX make uses the shell that is in the SHELL variable, which often defaults
@@ -19,8 +19,14 @@ RM_COMMAND=/bin/rm
 # provide an override for the OS type and architecture type; they still have
 # to be used for the OS-specific files. To override them, you can set the
 # shell variables OSTYPE and ARCHTYPE when running make.
-
-buildname=$${build:-`$(SHELL) scripts/os-type`-`$(SHELL) scripts/arch-type`}
+#
+# EXIM_BUILD_SUFFIX should be used to enable parallel builds on a file
+# system shared among different Linux distros (same os-type, same
+# arch-type). The ../test/runtest script is expected to honour the
+# EXIM_BUILD_SUFFIX when searching the Exim binary.
+# NOTE: EXIM_BUILD_SUFFIX is considered *experimental*.
+
+buildname=$${build:-`$(SHELL) scripts/os-type`-`$(SHELL) scripts/arch-type`}$${EXIM_BUILD_SUFFIX:+.$$EXIM_BUILD_SUFFIX}
 
 # The default target checks for the existence of Local/Makefile, that the main
 # makefile is built and up-to-date, and then it runs it.