Calling (semantic-mode 1) at mode setup causes warnings
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The same issue is described here:
http://stackoverflow.com/questions/13220980/strange-semantic-error
WARNING: semantic-find-file-noselect called for /usr/include/c++/4.9.1/x86_64-unknown-linux-gnu/bits/os_defines.h while in set-auto-mode for /usr/include/c++/4.9.1/x86_64-unknown-linux-gnu/bits/os_defines.h. You should call the responsible function into `mode-local-init-hook'.
WARNING: semantic-find-file-noselect called for /usr/include/c++/4.9.1/x86_64-unknown-linux-gnu/bits/cpu_defines.h while in set-auto-mode for /usr/include/c++/4.9.1/x86_64-unknown-linux-gnu/bits/cpu_defines.h. You should call the responsible function into `mode-local-init-hook'.
WARNING: semantic-find-file-noselect called for /usr/include/features.h while in set-auto-mode for /usr/include/features.h. You should call the responsible function into ...
I am using buildin cedet/semantic in emacs 24.3.
(add-to-list 'semantic-default-submodes 'global-semantic-decoration-mode)
(add-to-list 'semantic-default-submodes 'global-semantic-mru-bookmark-mode)
(add-to-list 'semantic-default-submodes 'global-semantic-idle-local-symbol-highlight-mode)
(semantic-mode t)
My current workaround is to redefine function-args-mode without (semantic-mode 1) expression as i already have that in my init.el.
Maybe module implementation should just check whether semantic mode is enabled and disable itself with warning otherwise.
This issue appears to do with a faulty CEDET config, just like in
the stackoverflow question.
Since function-args-mode relies on semantic-mode to be on and will likely
throw an error "Cannot analyze buffers not supported by Semantic" if semantic is off.
I suggest that you try either try to fix your CEDET config as in the stack question,
or switch to the newest CEDET from the git mirror http://git.randomsample.de/cedet.git.
That's what I'm using since it has many fixes and is faster.