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authornijtmans@users.sourceforge.net <jan.nijtmans>2012-04-24 20:21:16 (GMT)
committernijtmans@users.sourceforge.net <jan.nijtmans>2012-04-24 20:21:16 (GMT)
commit830ac5ea69e6a6a3ea77f6032ad6e69a97dc817f (patch)
treef7587ec802d28b8abaedf99e98dd2ba9084c5e6f /unix/configure.in
parent6e14d4b037124606898f47db23fd11da4db0b27e (diff)
parent57eb164841942a064c65e0634679393ff023ab61 (diff)
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[Bug 3508771] load tclreg.dll in cygwin tclsh
Implement TclWinGetSockOpt, TclWinGetServByName and TclWinCPUID for Cygwin
Diffstat (limited to 'unix/configure.in')
-rw-r--r--unix/configure.in14
1 files changed, 14 insertions, 0 deletions
diff --git a/unix/configure.in b/unix/configure.in
index fbf9f41..c04c735 100644
--- a/unix/configure.in
+++ b/unix/configure.in
@@ -566,6 +566,20 @@ fi
AC_MSG_RESULT([$tcl_ok])
#--------------------------------------------------------------------
+# The check below checks whether the cpuid instruction is usable.
+#--------------------------------------------------------------------
+
+AC_CACHE_CHECK([whether the cpuid instruction is usable], tcl_cv_cpuid, [
+ AC_TRY_LINK(, [
+ int index,ax,bx,cx,dx;
+ __asm__ __volatile__ ("cpuid":\
+ "=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) : "a" (index));
+ ], tcl_cv_cpuid=yes, tcl_cv_cpuid=no)])
+if test $tcl_cv_cpuid = yes; then
+ AC_DEFINE(HAVE_CPUID)
+fi
+
+#--------------------------------------------------------------------
# The statements below define a collection of symbols related to
# building libtcl as a shared library instead of a static library.
#--------------------------------------------------------------------