Fix bug 10488. Don't add platform_paths.hrh to S60 includes if it does not exist.
source.. = src/
output.. = bin/
bin.includes = plugin.xml,\
META-INF/,\
.,\
html/,\
index/,\
icons/,\
book.css
src.includes = META-INF/,\
html/,\
icons/,\
plugin.xml,\
book.css