fixes macOS autobuild (#5674)

* update macOS autobuild yaml

* updates */CMakeLists* for macOS autobuild compatibility

* "" a dir for cmake

* Un empty an empty EXTRA_INCDIR

* use a cmake operator

* Use the . dir to un-empty a string

* fix minutes timer in macos yaml

* test & skip instead of load & include

* disregard fractional part of minutes in mac yaml

* add another cmake test

* fix typo in mac yaml

* fix other part of same typo

* correct a filename in mac yaml

* test all include dirs

* fix of mac yaml

* mac:fix a path in yaml

* mac:and its antecedent

* options.h include a dir

* test __has_include (gcc 5.* & up & clang)

* remove a printf() in mac yaml

* mac:change a "" and an elseif() to else()

* fix a whitespace error

* fix 2 whitespace errors

* ZULU>UTC

* add a "UTC

* on the other side of the "

* mac:properly set default LOCAL_PREFIX in CACHE

* use of zsh subshells in macos yaml

* mac:remove some &&

* mac:remove some "

* mac:floating point divisors

* mac:use double paren (())

* mac:add a dir

* mac:floatize with decimal point

* mac:zsh -c certain lines

* remove a marker

tools/osx/macosx_bundle.sh

@@ -404,6 +404,7 @@ function CreateDmg {
     
     # Zip disk image for redistribution
     msg "Zipping disk image for redistribution:"
+    zip "${dmg_name}.zip" "${dmg_name}.dmg"
     rm "${dmg_name}.dmg"
     msg "Removing disk image caches:"
     rm -rf "${srcDir}"