diff --git a/meson.build b/meson.build
index 6bf147b3..3b3b39c9 100644
--- a/meson.build
+++ b/meson.build
@@ -18,6 +18,11 @@ conf.set_quoted('PROJECT', meson.project_name())
 conf.set_quoted('PROJECT_URL', 'https://linuxcontainers.org/lxcfs/introduction/')
 conf.set_quoted('PROJECT_VERSION',    meson.project_version(),
          description : 'Numerical project version (used where a simple number is expected)')
+conf.set_quoted('PACKAGE_VERSION',    meson.project_version())
+conf.set('_GNU_SOURCE', true)
+conf.set('_FILE_OFFSET_BITS', 64)
+conf.set('__STDC_FORMAT_MACROS', true)
+
 project_source_root = meson.current_source_dir()
 project_build_root = meson.current_build_dir()
 
@@ -133,10 +138,6 @@ foreach ident : [
         conf.set10('HAVE_' + ident[0].to_upper(), have)
 endforeach
 
-conf.set('_GNU_SOURCE', true)
-conf.set('_FILE_OFFSET_BITS', 64)
-conf.set('__STDC_FORMAT_MACROS', true)
-
 libfuse = dependency('fuse3', required : false)
 if libfuse.found()
 	conf.set10('HAVE_FUSE3', true)
diff --git a/src/proc_cpuview.c b/src/proc_cpuview.c
index b6ffd29a..37e9a208 100644
--- a/src/proc_cpuview.c
+++ b/src/proc_cpuview.c
@@ -683,9 +683,9 @@ int cpuview_proc_stat(const char *cg, const char *cpuset,
 		}
 
 		if (user_surplus > 0)
-			lxcfs_debug("leftover user: %lu for %s\n", user_surplus, cg);
+			lxcfs_debug("leftover user: %" PRIu64 "for %s\n", user_surplus, cg);
 		if (system_surplus > 0)
-			lxcfs_debug("leftover system: %lu for %s\n", system_surplus, cg);
+			lxcfs_debug("leftover system: %" PRIu64 "for %s\n", system_surplus, cg);
 
 		for (curcpu = 0, i = -1; curcpu < nprocs; curcpu++) {
 			if (!stat_node->usage[curcpu].online)
@@ -712,9 +712,9 @@ int cpuview_proc_stat(const char *cg, const char *cpuset,
 				max_diff_idle_index 	= curcpu;
 			}
 
-			lxcfs_v("curcpu: %d, diff_user: %lu, diff_system: %lu, diff_idle: %lu\n", curcpu, diff[curcpu].user, diff[curcpu].system, diff[curcpu].idle);
+			lxcfs_v("curcpu: %d, diff_user: %" PRIu64 ", diff_system: %" PRIu64 ", diff_idle: %" PRIu64 "\n", curcpu, diff[curcpu].user, diff[curcpu].system, diff[curcpu].idle);
 		}
-		lxcfs_v("total. diff_user: %lu, diff_system: %lu, diff_idle: %lu\n", diff_user, diff_system, diff_idle);
+		lxcfs_v("total. diff_user: %" PRIu64 ", diff_system: %" PRIu64 ", diff_idle: %" PRIu64 "\n", diff_user, diff_system, diff_idle);
 
 		/* revise cpu usage view to support partial cpu case. */
 		exact_cpus = exact_cpu_count(cg);
@@ -724,21 +724,21 @@ int cpuview_proc_stat(const char *cg, const char *cpuset,
 			uint64_t delta = (uint64_t)((double)(diff_user + diff_system + diff_idle) * (1 - exact_cpus / (double)max_cpus));
 
 			lxcfs_v("revising cpu usage view to match the exact cpu count [%f]\n", exact_cpus);
-			lxcfs_v("delta: %lu\n", delta);
-			lxcfs_v("idle_sum before: %lu\n", idle_sum);
+			lxcfs_v("delta: %" PRIu64 "\n", delta);
+			lxcfs_v("idle_sum before: %" PRIu64 "\n", idle_sum);
 			if (idle_sum > delta)
 				idle_sum = idle_sum - delta;
 			else
 				idle_sum = 0;
-			lxcfs_v("idle_sum after: %lu\n", idle_sum);
+			lxcfs_v("idle_sum after: %l" PRIu64 "\n", idle_sum);
 
 			curcpu = max_diff_idle_index;
-			lxcfs_v("curcpu: %d, idle before: %lu\n", curcpu, stat_node->view[curcpu].idle);
+			lxcfs_v("curcpu: %d, idle before: %" PRIu64 "\n", curcpu, stat_node->view[curcpu].idle);
 			if (stat_node->view[curcpu].idle > delta)
 				stat_node->view[curcpu].idle = stat_node->view[curcpu].idle - delta;
 			else
 				stat_node->view[curcpu].idle = 0;
-			lxcfs_v("curcpu: %d, idle after: %lu\n", curcpu, stat_node->view[curcpu].idle);
+			lxcfs_v("curcpu: %d, idle after: %" PRIu64 "\n", curcpu, stat_node->view[curcpu].idle);
 		}
 	} else {
 		for (curcpu = 0; curcpu < nprocs; curcpu++) {
diff --git a/src/proc_fuse.c b/src/proc_fuse.c
index c9103771..7a1ba40a 100644
--- a/src/proc_fuse.c
+++ b/src/proc_fuse.c
@@ -308,7 +308,7 @@ static void get_swap_info(const char *cgroup, uint64_t memlimit,
 			  uint64_t *swusage, uint64_t *memswpriority)
 {
 	__do_free char *memswusage_str = NULL, *memswpriority_str = NULL;
-	size_t memswlimit = 0, memswusage = 0;
+	uint64_t memswlimit = 0, memswusage = 0;
 	int ret;
 
 	*swtotal = *swusage = 0;
@@ -461,13 +461,13 @@ static void get_blkio_io_value(char *str, unsigned major, unsigned minor,
 	len = strlen(key);
 	while (*str) {
 		if (startswith(str, key)) {
-			sscanf(str + len, "%lu", v);
+			sscanf(str + len, "%" PRIu64, v);
 			return;
 		}
 		eol = strchr(str, '\n');
 		if (!eol)
 			return;
-		str = eol+1;
+		str = eol + 1;
 	}
 }
 
@@ -621,7 +621,7 @@ static int proc_diskstats_read(char *buf, size_t size, off_t offset,
 		    stats.read_sectors || stats.write_sectors || stats.read_ticks ||
 		    stats.write_ticks || stats.ios_pgr || stats.total_ticks || stats.rq_ticks ||
 		    stats.discard_merged || stats.discard_sectors || stats.discard_ticks)
-			snprintf(lbuf, 256, "%u       %u %s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu\n",
+			snprintf(lbuf, 256, "%u       %u %s %" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "\n",
 				stats.major,
 				stats.minor,
 				stats.dev_name,
@@ -979,7 +979,7 @@ static int proc_stat_read(char *buf, size_t size, off_t offset,
 
 		curcpu++;
 
-		ret = sscanf(line, "%*s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu",
+		ret = sscanf(line, "%*s %" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64,
 			   &user,
 			   &nice,
 			   &system,
@@ -1056,7 +1056,7 @@ static int proc_stat_read(char *buf, size_t size, off_t offset,
 
 	cache = d->buf;
 
-	int cpuall_len = snprintf(cpuall, CPUALL_MAX_SIZE, "cpu  %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu\n",
+	int cpuall_len = snprintf(cpuall, CPUALL_MAX_SIZE, "cpu  %" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "\n",
 			user_sum,
 			nice_sum,
 			system_sum,
diff --git a/src/proc_loadavg.c b/src/proc_loadavg.c
index 5f9bec79..b7411c47 100644
--- a/src/proc_loadavg.c
+++ b/src/proc_loadavg.c
@@ -49,13 +49,13 @@ static int loadavg = 0;
 #define FLUSH_TIME 5  /*the flush rate */
 #define DEPTH_DIR 3   /*the depth of per cgroup */
 /* The function of calculate loadavg .*/
-#define FSHIFT		11		/* nr of bits of precision */
-#define FIXED_1		(1 << FSHIFT)	/* 1.0 as fixed-point */
-#define EXP_1		1884		/* 1/exp(5sec/1min) as fixed-point */
-#define EXP_5		2014		/* 1/exp(5sec/5min) */
-#define EXP_15		2037		/* 1/exp(5sec/15min) */
+#define FSHIFT		(uint64_t)11		/* nr of bits of precision */
+#define FIXED_1		((uint64_t)1 << FSHIFT)	/* 1.0 as fixed-point */
+#define EXP_1		(uint64_t)1884		/* 1/exp(5sec/1min) as fixed-point */
+#define EXP_5		(uint64_t)2014		/* 1/exp(5sec/5min) */
+#define EXP_15		(uint64_t)2037		/* 1/exp(5sec/15min) */
 #define LOAD_INT(x) ((x) >> FSHIFT)
-#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
+#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1 - 1)) * (uint64_t)100)
 static volatile sig_atomic_t loadavg_stop = 0;
 
 struct load_node {
@@ -225,9 +225,9 @@ int proc_loadavg_read(char *buf, size_t size, off_t offset,
 	b = n->avenrun[1] + (FIXED_1 / 200);
 	c = n->avenrun[2] + (FIXED_1 / 200);
 	total_len = snprintf(d->buf, d->buflen,
-			     "%lu.%02lu "
-			     "%lu.%02lu "
-			     "%lu.%02lu "
+			     "%" PRIu64 ".%02" PRIu64 " "
+			     "%" PRIu64 ".%02lu "
+			     "%" PRIu64 ".%02" PRIu64 " "
 			     "%d/"
 			     "%d "
 			     "%d\n",