Switch away from obsolescent utime function

POSIX.1-2008 marks utime as obsolescent.  Switch to variants of the
futimens/utimensat family instead, via Gnulib.  Use higher-precision
times for cat pages.

* gnulib: Import stat-time and utimens modules.
* src/man.c (man_modtime): Change type to struct timespec.
(commit_tmp_cat): Use utimens rather than utime.
(display): Store a higher-precision modification timestamp for
man_file.

1 files changed, 32 insertions, 1 deletions

diff --git a/gnulib/lib/Makefile.am b/gnulib/lib/Makefile.am
index c8ac4efb..742c19bb 100644
--- a/gnulib/lib/Makefile.am
+++ b/gnulib/lib/Makefile.am
@@ -21,7 +21,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gnulib/lib --m4-base=gnulib/m4 --po-base=gnulib/po --doc-base=doc --tests-base=tests --aux-dir=build-aux --no-conditional-dependencies --libtool --macro-prefix=gl --po-domain=man-db --no-vc-files argp canonicalize closedir dirname error flock fnmatch-gnu fstat getline getopt-gnu gettext gitlog-to-changelog glob gnupload idpriv-drop idpriv-droptemp lib-ignore localcharset lock minmax mkdtemp mkstemp opendir regex rename setenv sigaction signal sigprocmask strerror strsep unsetenv warnings xalloc xgetcwd xstrndup xvasprintf
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gnulib/lib --m4-base=gnulib/m4 --po-base=gnulib/po --doc-base=doc --tests-base=tests --aux-dir=build-aux --no-conditional-dependencies --libtool --macro-prefix=gl --po-domain=man-db --no-vc-files argp canonicalize closedir dirname error flock fnmatch-gnu fstat getline getopt-gnu gettext gitlog-to-changelog glob gnupload idpriv-drop idpriv-droptemp lib-ignore localcharset lock minmax mkdtemp mkstemp opendir regex rename setenv sigaction signal sigprocmask stat-time strerror strsep unsetenv utimens warnings xalloc xgetcwd xstrndup xvasprintf
 
 AUTOMAKE_OPTIONS = 1.9.6 gnits subdir-objects
 
@@ -49,6 +49,7 @@ libgnu_la_DEPENDENCIES = $(gl_LTLIBOBJS)
 EXTRA_libgnu_la_SOURCES =
 libgnu_la_LDFLAGS = $(AM_LDFLAGS)
 libgnu_la_LDFLAGS += -no-undefined
+libgnu_la_LDFLAGS += $(LIB_CLOCK_GETTIME)
 libgnu_la_LDFLAGS += $(LTLIBINTL)
 libgnu_la_LDFLAGS += $(LTLIBTHREAD)
 
@@ -667,6 +668,12 @@ libgnu_la_SOURCES += gettext.h
 
 ## end   gnulib module gettext-h
 
+## begin gnulib module gettime
+
+libgnu_la_SOURCES += gettime.c
+
+## end   gnulib module gettime
+
 ## begin gnulib module gettimeofday
 
 
@@ -1412,6 +1419,14 @@ EXTRA_libgnu_la_SOURCES += stat.c
 
 ## end   gnulib module stat
 
+## begin gnulib module stat-time
+
+libgnu_la_SOURCES += stat-time.c
+
+EXTRA_DIST += stat-time.h
+
+## end   gnulib module stat-time
+
 ## begin gnulib module stdalign
 
 BUILT_SOURCES += $(STDALIGN_H)
@@ -2253,6 +2268,14 @@ EXTRA_DIST += time.in.h
 
 ## end   gnulib module time
 
+## begin gnulib module timespec
+
+libgnu_la_SOURCES += timespec.c
+
+EXTRA_DIST += timespec.h
+
+## end   gnulib module timespec
+
 ## begin gnulib module unistd
 
 BUILT_SOURCES += unistd.h
@@ -2422,6 +2445,14 @@ EXTRA_libgnu_la_SOURCES += unsetenv.c
 
 ## end   gnulib module unsetenv
 
+## begin gnulib module utimens
+
+libgnu_la_SOURCES += utimens.c
+
+EXTRA_DIST += utimens.h
+
+## end   gnulib module utimens
+
 ## begin gnulib module vasnprintf