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-rw-r--r--unix/configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/unix/configure.in b/unix/configure.in
index 869fbaa..63d7170 100644
--- a/unix/configure.in
+++ b/unix/configure.in
@@ -577,7 +577,7 @@ AC_CACHE_CHECK([whether the cpuid instruction is usable], tcl_cv_cpuid, [
"mov %%ebx, %%esi \n\t"
"mov %%edi, %%ebx \n\t"
: "=a"(regsPtr[0]), "=S"(regsPtr[1]), "=c"(regsPtr[2]), "=d"(regsPtr[3])
- : "a"(index));
+ : "a"(index) : "edi");
], tcl_cv_cpuid=yes, tcl_cv_cpuid=no)])
if test $tcl_cv_cpuid = yes; then
AC_DEFINE(HAVE_CPUID, 1, [Is the cpuid instruction usable?])