[PATCH 2/2] Makefile: run coccicheck on more source files

Before, when running the "coccicheck" target, only the source files
which were being compiled would have been checked by Coccinelle.
However, just because we aren't compiling a source file doesn't mean we
have to exclude it from analysis. This will allow us to catch more
mistakes, in particular ones that affect Windows-only sources since
Coccinelle currently runs only on Linux.

Make the "coccicheck" target run on all C sources except for those that
are taken from some upstream. We don't want to patch these files since
we want them to be as close to upstream as possible so that it'll be
easier to pull in upstream updates.

This results in the following sources now being checked:

* block-sha1/sha1.c
* compat/access.c
* compat/basename.c
* compat/fileno.c
* compat/gmtime.c
* compat/hstrerror.c
* compat/memmem.c
* compat/mingw.c
* compat/mkdir.c
* compat/mkdtemp.c
* compat/mmap.c
* compat/msvc.c
* compat/pread.c
* compat/precompose_utf8.c
* compat/qsort.c
* compat/setenv.c
* compat/sha1-chunked.c
* compat/snprintf.c
* compat/stat.c
* compat/strcasestr.c
* compat/strdup.c
* compat/strtoimax.c
* compat/strtoumax.c
* compat/unsetenv.c
* compat/win32/dirent.c
* compat/win32/path-utils.c
* compat/win32/pthread.c
* compat/win32/syslog.c
* compat/win32/trace2_win32_process_info.c
* compat/win32mmap.c
* compat/winansi.c
* ppc/sha1.c

This also results in the following source now being excluded:

* compat/obstack.c

Signed-off-by: Denton Liu <redacted>
---
 Makefile | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 708df2c289..d468b7c9c4 100644
--- a/Makefile
+++ b/Makefile

@@ -2802,12 +2802,8 @@ check: command-list.h
 		exit 1; \
 	fi
 
-C_SOURCES = $(patsubst %.o,%.c,$(C_OBJ))
-ifdef DC_SHA1_SUBMODULE
-COCCI_SOURCES = $(filter-out sha1collisiondetection/%,$(C_SOURCES))
-else
-COCCI_SOURCES = $(filter-out sha1dc/%,$(C_SOURCES))
-endif
+FIND_C_SOURCES = $(filter %.c,$(shell $(FIND_SOURCE_FILES)))
+COCCI_SOURCES = $(filter-out $(UPSTREAM_SOURCES),$(FIND_C_SOURCES))
 
 %.cocci.patch: %.cocci $(COCCI_SOURCES)
 	@echo '    ' SPATCH $<; \

-- 
2.23.0.248.g3a9dd8fb08