Fixed spurious rebuilds of func_version.

func_version.so was being rebuilt every time, because build.h was
changing every build, because of the cleantest dependency that was
added in r384410 to fix parallel make bugs.

Now build.h will only be created if it does not exist, which was the
original behavior of the Makefile.
........

Merged revisions 384544 from http://svn.asterisk.org/svn/asterisk/branches/1.8

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@384545 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/Makefile b/Makefile
index 0017ed34552f7d3043c1c2d58387812de1d19aec..6eb123bb63c2343e541fb2d2614802fb776bda27 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -401,10 +401,11 @@ include/asterisk/buildopts.h: menuselect.makeopts cleantest
        @cmp -s $@.tmp $@ || mv $@.tmp $@
        @rm -f $@.tmp
 
+# build.h must depend on cleantest, or parallel make may wipe it out after it's
+# been created. But since build.h contains a timestamp, the cmp trick used above
+# won't work. Just testing for existence is good enough.
 include/asterisk/build.h: cleantest
-       @build_tools/make_build_h > $@.tmp
-       @cmp -s $@.tmp $@ || mv $@.tmp $@
-       @rm -f $@.tmp
+       @test -f $@ || build_tools/make_build_h > $@
 
 $(SUBDIRS_CLEAN):
        +@$(SUBMAKE) -C $(@:-clean=) clean