https://stackoverflow.com/questions/4222183/emacs-how-to-jump-to-function-definition-in-el-file and talk about navigation to source of functions. They offer two options:
- M-x find-function
- C-h f then use link in help buffer.
However, for a compiled function, neither work.
M-x find-function compilation-find-file
throws an error:
Debugger entered--Lisp error: (error "Can’t find library /usr/share/emacs/26.1+gg1+7/lisp/progmodes/compile.el")
If I used the help function path, I see:
compilation-find-file is a compiled Lisp function.
How can I fix these?
M-x find-function RET compilation-find-file RETworks fine for me (so long ascompile.elhas been loaded beforehand), despitecompilation-find-filebeing a "compiled Lisp function". Does it work if you start withemacs -Qfollowed by(require 'compile)and then thefind-functioncall? – Basil Aug 5 '18 at 16:02M-.(xref-find-definitionssince Emacs 25) for jumping to the definition of the identifier at point, as briefly mentioned in the linked SO post. – Basil Aug 5 '18 at 16:03source-directory' and/orload-path'. – Realraptor Aug 5 '18 at 16:12/usr/share/emacs/26.1+gg1+7/lisp/progmodesand also the parent directory. If there is nothing there, thengrepor manually look around for the.eland/or.gzfiles. There are minimal installations that do not install the Lisp libraries, but that is not very common and is certainly not the default installation method. – lawlist Aug 5 '18 at 16:21apt-get install) theemacs-elandemacs25-common-non-dfsgpackages (substituting the version number as appropriate in the latter package name). The former provides the elisp source files, and the latter provides the manuals. You don't want to be lacking either of those things. – phils Aug 6 '18 at 0:04