package-version=${version;===;${Bundle-Version}}

Export-Package: \
 !about.html,!about_files, \
 *.internal*;x-internal:=true;version="${package-version}", \
 *.impl*;x-internal:=true;version="${package-version}", \
 *;version="${package-version}"

Import-Package: \
 org.slf4j.*;version="${range;[===,=+);${package-version}}", \
 *;resolution:=optional
###############
# SLF4J Binding
#
Provide-Capability: org.slf4j.impl; org.slf4j.impl="simple"; version:Version="${package-version}"
Fragment-Host: org.slf4j.api;bundle-version="${range;[===,=+);${package-version}}"