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This makes the compile commands clearer when building in parallel (with
`make -j`) and ensures that `__FILE__` includes the full build-time path
(relative to the root of the repository) whenever it is referenced, such
as in failed assert() messages (currently the full path is only shown in
errExit() messages). Example:
Before:
firejail: main.c:100: main: Assertion `1 == 2' failed.
Error src/firecfg/main.c:100: main: malloc: Cannot allocate memory
After:
firejail: ../../src/firejail/main.c:100: main: Assertion `1 == 2' failed.
Error ../../src/firecfg/main.c:100: main: malloc: Cannot allocate memory
Commands used to search and replace:
$ git grep -Ilz '^MOD_DIR =' -- '*Makefile' | xargs -0 -I '{}' \
sh -c "printf '%s\n' \"\$(sed -E \
-e 's|^MOD_DIR = src/(.*)|MOD = \\1\\nMOD_DIR = \$(ROOT)/src/\$(MOD)|' \
-e 's:^(PROG|SO) = [^.]+(\.so)?$:\\1 = \$(MOD_DIR)/\$(MOD)\2:' \
'{}')\" >'{}'"
$ git grep -Ilz '^HDRS :=' -- '*.mk' | xargs -0 -I '{}' \
sh -c "printf '%s\n' \"\$(sed -E \
-e 's|wildcard (\*\..)|wildcard \$(MOD_DIR)/\\1|' '{}')\" >'{}'"
Note: config.mk.in, src/fnettrace/Makefile and src/include/common.h were
edited manually.
This is a follow-up to #5871.
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Kelvin M. Klann
netblue30