Fix CLS detection on systems that have getconf, but don't support the LEVEL1_DCACHE_LINESIZE option.

12 years ago · 0ddd57cb05
parent 724ad9e8e7
commit 0ddd57cb05
1 changed files with 3 additions and 1 deletions
--- a/configure.ac
+++ b/configure.ac
@ -1486,7 +1486,9 @@ AC_INIT(configure.ac)
    AC_PATH_PROG(HAVE_GETCONF_CMD, getconf, "no")
    if test "$HAVE_GETCONF_CMD" != "no"; then
        CLS=$(getconf LEVEL1_DCACHE_LINESIZE)
-        AC_DEFINE_UNQUOTED([CLS],[${CLS}],[L1 cache line size])
+        if test "$CLS" != ""; then
+            AC_DEFINE_UNQUOTED([CLS],[${CLS}],[L1 cache line size])
+        fi
    fi

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