maint: adjust cpp indentation to reflect nesting depth

I.e., in a block of code that begins with an unnested "#if",
put one space between the "#" in column 1 and following token.
For example,
-#include <sys/vfs.h>
+# include <sys/vfs.h>
Do this only in .c files that are part of a module I maintain.
* lib/linkat.c: Filter through cppi.
* lib/nanosleep.c: Likewise.
* lib/openat.c: Likewise.
* lib/openat-die.c: Likewise.
* lib/dup3.c: Likewise.
* lib/fchownat.c: Likewise.
* lib/flock.c: Likewise.
* lib/fsync.c: Likewise.
* lib/fts.c: Likewise.
* lib/getpass.c: Likewise.
* lib/gettimeofday.c: Likewise.
* lib/userspec.c: Likewise.
* Makefile (sc_cpp_indent_check): New rule, to check this.

1 files changed, 9 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index c3bf4a979d..398b14a10a 100644
--- a/Makefile
+++ b/Makefile
@@ -45,6 +45,15 @@ sc_pragma_columns:
 		 exit 1; } || :;					\
 	else :; fi
 
+# Verify that certain (for now, only Jim Meyering's) lib/**.c files
+# are consistently cpp indented.
+sc_cpp_indent_check:
+	./gnulib-tool --extract-filelist $$(cd modules; grep -ilr meyering .) \
+          | sort -u \
+          | grep 'lib/.*\.c$$' \
+          | grep -v '/getloadavg\.c$$' \
+          | xargs cppi -c
+
 # Regenerate some files that are stored in the repository.
 regen: MODULES.html