Merge branch 'bjorn/create-less-garbage'

* bjorn/create-less-garbage:
  Optimize filename:basename/1 to produce less garbage
  Optimize filename:extension/1 to produce less garbage
  sys.c for Unix: Undo caching of utsname in os_flavor()
  Pre-build the tuples returned by os:type/0 and os:version/0

1 files changed, 6 insertions, 11 deletions

diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 94ec8dc8a0..20bfaad9aa 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -931,18 +931,13 @@ void
 os_flavor(char* namebuf, 	/* Where to return the name. */
 	  unsigned size) 	/* Size of name buffer. */
 {
-    static int called = 0;
-    static struct utsname uts;	/* Information about the system. */
-
-    if (!called) {
-	char* s;
+    struct utsname uts;		/* Information about the system. */
+    char* s;
 
-	(void) uname(&uts);
-	called = 1;
-	for (s = uts.sysname; *s; s++) {
-	    if (isupper((int) *s)) {
-		*s = tolower((int) *s);
-	    }
+    (void) uname(&uts);
+    for (s = uts.sysname; *s; s++) {
+	if (isupper((int) *s)) {
+	    *s = tolower((int) *s);
 	}
     }
     strcpy(namebuf, uts.sysname);