This would indeed be very helpful. I'd love to use the scan-build plugin in Jenkins, but my project is makefile based as well.

I agree this would be good.

You can get it to work in a way. The publisher looks for reports in the folder clangScanBuildReports so you should make that the output folder for scan-build. e.g.:

scan-build -o clangScanBuildReports make

In practice it does not work well with multiple scan-build commands because it moves report files from the datestamped folder up a directory. Therefore you have to move the other html files up a directory too. e.g.:

scan-build -o clangScanBuildReports ./configure
scan-build -o clangScanBuildReports make
mv clangScanBuildReports//report.html clangScanBuildReports

One more vote for Makefile support

It is possible to create a job with Build step - Execute shell
that invokes scan-build from the command-line, and have it work
with the clang scan-build plugin. See the example listed at:

https://wiki.jenkins-ci.org/display/JENKINS/Clang+Scan-Build+Plugin