Fix symlink-following. Bug 2909

[exim.git] / src / Makefile

diff --git a/src/Makefile b/src/Makefile
index a18c3d7289356646b574913fd454df540e3b4482..b774b43dd5eb9152c8ebf3f4da9d68f6d0c0e66c 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -2,7 +2,8 @@
 # appropriate links, and then creating and running the main makefile in that
 # directory.
 
-# Copyright (c) University of Cambridge, 1995 - 2007
+# Copyright (c) The Exim Maintainers 2022
+# Copyright (c) University of Cambridge, 1995 - 2018
 # See the file NOTICE for conditions of use and distribution.
 
 # IRIX make uses the shell that is in the SHELL variable, which often defaults
@@ -13,21 +14,33 @@
 SHELL=/bin/sh
 RM_COMMAND=/bin/rm
 
-# If a build name has not been specified by running this make file via a
-# command of the form "make build=xxxx", then determine the name of the
-# operating system and the machine architecture and use that. This does not
-# 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
+# The buildname defaults to "<os-type>-<arch-type>". It can be
+# overridden by the "build" parameter when invoking make (e.g. make
+# build=xxx) This does not provide an override for the OS type and
+# architecture type used during the build process; 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.
+#
+# EXIM_BUILD_SUFFIX gets appended to the buildname.  (This enables
+# parallel builds on a file system shared among different Linux distros
+# (same os-type, same arch-type). The ../test/runtest script honours the
+# EXIM_BUILD_SUFFIX when searching the Exim binary.)
 
-buildname=$${build:-`$(SHELL) scripts/os-type`-`$(SHELL) scripts/arch-type`}
+buildname=$${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.
+# If Local/Makefile-<buildname> exists, it is read too.
 
 all: Local/Makefile configure
        @cd build-$(buildname); $(MAKE) SHELL=$(SHELL) $(MFLAGS)
 
+# This pair for the convenience of of the Debian maintainers
+exim: Local/Makefile configure
+       @cd build-$(buildname); $(MAKE) SHELL=$(SHELL) $(MFLAGS) exim
+utils: Local/Makefile configure
+       @cd build-$(buildname); $(MAKE) SHELL=$(SHELL) $(MFLAGS) utils
+
 Local/Makefile:
        @echo ""
        @echo "*** Please create Local/Makefile by copying src/EDITME and making"
@@ -45,12 +58,15 @@ build-directory:
        $(SHELL) -c "test -d $$builddir -a -r $$builddir/version.c || \
          (mkdir $$builddir; cd $$builddir; $(SHELL) ../scripts/MakeLinks)";
 
+checks:
+       $(SHELL) scripts/source_checks
+
 # The "configure" target ensures that the build directory exists, then arranges
 # to build the main makefile from inside the build directory, by calling the
 # Configure-Makefile script. This does its own dependency checking because of
 # the optional files.
 
-configure: build-directory
+configure: checks build-directory
        @cd build-$(buildname); \
          build=$(build) $(SHELL) ../scripts/Configure-Makefile
 
@@ -82,6 +98,18 @@ clean_exim:; cd build-$(buildname); \
         $(RM_COMMAND) -f *.o lookups/*.o lookups/*.a auths/*.o auths/*.a \
        routers/*.o routers/*.a transports/*.o transports/*.a lookups/*.so
 
-distclean:; $(RM_COMMAND) -rf build-*
+distclean:; $(RM_COMMAND) -rf build-* cscope*
+
+cscope.files: FRC
+       echo "-q" > $@
+       echo "-p3" >> $@
+       -bd=build-$(buildname); [ -d $$bd ] && echo -e "$$bd/config.h\n$$bd/Makefile" >> $@
+       find src Local OS exim_monitor -name "*.[cshyl]" -print \
+                   -o -name "os.[ch]*" -print \
+                   -o -name "*akefile*" -print \
+                   -o -name config.h.defaults -print \
+                   -o -name EDITME -print >> $@
+
+FRC:
 
 # End of top-level makefile