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author | Kelvin M. Klann <kmk3.code@protonmail.com> | 2021-02-12 05:25:23 -0300 |
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committer | Kelvin M. Klann <kmk3.code@protonmail.com> | 2021-03-01 16:07:43 -0300 |
commit | 2465f9248e1e2737479fad5065d8310a860ce415 (patch) | |
tree | 09ef4bd8d73c98b7cb8a23f6cc2b8ed6d43576a9 /src/lib/Makefile.in | |
parent | makefiles: fix misc blank line consistency (diff) | |
download | firejail-2465f9248e1e2737479fad5065d8310a860ce415.tar.gz firejail-2465f9248e1e2737479fad5065d8310a860ce415.tar.zst firejail-2465f9248e1e2737479fad5065d8310a860ce415.zip |
makefiles: make all, clean and distclean PHONY
Avoid a stat() call for each affected target and also potentially speed
up parallel builds.
From the GNU make manual[1]:
> Phony targets are also useful in conjunction with recursive
> invocations of make (see Recursive Use of make). In this situation
> the makefile will often contain a variable which lists a number of
> sub-directories to be built.
[...]
> The implicit rule search (see Implicit Rules) is skipped for .PHONY
> targets. This is why declaring a target as .PHONY is good for
> performance, even if you are not worried about the actual file
> existing.
Commands used to search, replace and cleanup:
$ find -type f -name '*Makefile.in' -exec sed -i.bak \
-e 's/^all:/.PHONY: all\nall:/' \
-e 's/^clean:/.PHONY: clean\nclean:/' \
-e 's/^distclean:/.PHONY: distclean\ndistclean:/' '{}' +
$ find -type f -name '*Makefile.in.bak' -exec rm '{}' +
[1]: https://www.gnu.org/software/make/manual/html_node/Phony-Targets.html
Diffstat (limited to 'src/lib/Makefile.in')
-rw-r--r-- | src/lib/Makefile.in | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib/Makefile.in b/src/lib/Makefile.in index 681252832..49c8057b3 100644 --- a/src/lib/Makefile.in +++ b/src/lib/Makefile.in | |||
@@ -1,11 +1,14 @@ | |||
1 | include ../common.mk | 1 | include ../common.mk |
2 | 2 | ||
3 | .PHONY: all | ||
3 | all: $(OBJS) | 4 | all: $(OBJS) |
4 | 5 | ||
5 | %.o : %.c $(H_FILE_LIST) | 6 | %.o : %.c $(H_FILE_LIST) |
6 | $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(INCLUDE) -c $< -o $@ | 7 | $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(INCLUDE) -c $< -o $@ |
7 | 8 | ||
9 | .PHONY: clean | ||
8 | clean:; rm -fr $(OBJS) *.gcov *.gcda *.gcno *.plist | 10 | clean:; rm -fr $(OBJS) *.gcov *.gcda *.gcno *.plist |
9 | 11 | ||
12 | .PHONY: distclean | ||
10 | distclean: clean | 13 | distclean: clean |
11 | rm -fr Makefile | 14 | rm -fr Makefile |