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[gnu-emacs] / src / blockinput.h

diff --git a/src/blockinput.h b/src/blockinput.h
index fcaa64723bcf701fa8fbd6b7b940db2e251a017d..468f0e0c7623d57362c847aeb9d6fc37fd095d00 100644 (file)
--- a/src/blockinput.h
+++ b/src/blockinput.h
@@ -49,7 +49,7 @@ Boston, MA 02110-1301, USA.  */
    interrupt_input_pending to a non-zero value.  If that flag is set
    when input becomes unblocked, UNBLOCK_INPUT will send a new SIGIO.  */
 
-extern int interrupt_input_blocked;
+extern volatile int interrupt_input_blocked;
 
 /* Nonzero means an input interrupt has arrived
    during the current critical section.  */