mkspecs/features/qt_prefix_build_check.prf


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#
#  W A R N I N G
#  -------------
#
# This file is not part of the Qt API.  It exists purely as an
# implementation detail.  It may change from version to version
# without notice, or even be removed.
#
# We mean it.
#

defineTest(qtIsPrefixBuild) {
    prefixdir = $$1
    # qtbase non-prefix build?
    exists($$prefixdir/.qmake.cache)|exists($$prefixdir/CMakeCache.txt): \
        return(false)
    # top-level non-prefix build?
    contains(prefixdir, .*/qtbase):if(exists($$dirname(prefixdir)/.qmake.super)|exists($$dirname(prefixdir)/CMakeCache.txt)): \
        return(false)
    return(true)
}