---
 proc/libprocps.sym |    1 +
 proc/sysinfo.c     |   13 +++++++++++--
 proc/sysinfo.h     |    2 ++
 3 files changed, 14 insertions(+), 2 deletions(-)

--- proc/libprocps.sym
+++ proc/libprocps.sym	2018-04-04 11:30:51.841725161 +0000
@@ -60,6 +60,7 @@ global:
 	signal_name_to_number;
 	signal_number_to_name;
 	smp_num_cpus;
+	__smp_num_cpus;
 	sprint_uptime;
 	strtosig;
 	tty_to_dev;
--- proc/sysinfo.c
+++ proc/sysinfo.c	2018-04-04 11:33:26.306886237 +0000
@@ -47,7 +47,8 @@
 #endif
 #include <elf.h>
 
-long smp_num_cpus;     /* number of CPUs */
+#undef smp_num_cpus
+long smp_num_cpus=-1;  /* number of CPUs */
 long page_bytes;       /* this architecture's page size */
 
 #define BAD_OPEN_MESSAGE					\
@@ -1166,7 +1167,11 @@ out:
 
 ///////////////////////////////////////////////////////////////////////////
 
-void cpuinfo (void) {
+long __smp_num_cpus (void) {
+
+  if (smp_num_cpus != -1)
+    return(smp_num_cpus);
+
   // ought to count CPUs in /proc/stat instead of relying
   // on glibc, which foolishly tries to parse /proc/cpuinfo
   // note: that may have been the case but now /proc/stat
@@ -1181,4 +1186,8 @@ void cpuinfo (void) {
   smp_num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
   if (smp_num_cpus<1)        /* SPARC glibc is buggy */
     smp_num_cpus=1;
+
+  return smp_num_cpus;
 }
+
+void cpuinfo (void) { (void)__smp_num_cpus(); }
--- proc/sysinfo.h
+++ proc/sysinfo.h	2018-04-04 11:30:51.841725161 +0000
@@ -8,6 +8,8 @@ EXTERN_C_BEGIN
 
 extern unsigned long long Hertz;   /* clock tick frequency */
 extern long smp_num_cpus;          /* number of CPUs */
+extern long __smp_num_cpus(void);
+#define smp_num_cpus __smp_num_cpus()
 extern int have_privs;             /* boolean, true if setuid or similar */
 extern long page_bytes;            /* this architecture's bytes per page */