kconfig: print more info when we see a recursive dependency
Consider following kconfig file: config TEST1 bool "test 1" depends on TEST2 config TEST2 bool "test 2" depends on TEST1 Previously kconfig would report: foo:6:error: found recursive dependency: TEST2 -> TEST1 -> TEST2 With the following patch kconfig reports: foo:5:error: recursive dependency detected! foo:5: symbol TEST2 depends on TEST1 foo:1: symbol TEST1 depends on TEST2 Note that we now report where the offending symbols are defined. This can be a great help for complex situations involving several files. Patch is originally from Roman Zippel with a few adjustments by Sam. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: NMichal Marek <mmarek@suse.cz>
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