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[bpt/emacs.git] / src / s / isc4-0.h

diff --git a/src/s/isc4-0.h b/src/s/isc4-0.h
index 14eb692..ccd6cb0 100644 (file)
--- a/src/s/isc4-0.h
+++ b/src/s/isc4-0.h
@@ -20,6 +20,11 @@
 #ifndef SIG_BLOCK
 #define SIG_BLOCK 0
 #endif
-#define sigblock(sig) (sigprocmask (SIG_BLOCK, SIGEMPTYMASK | sig, NULL))
+#define sigblock(sig)                                  \
+     (sigprocmask_set = SIGEMPTYMASK | (sig),          \
+      sigprocmask (SIG_BLOCK, &sigprocmask_set, NULL))
+#define sigunblock(sig)                                                \
+     (sigprocmask_set = SIGFULLMASK & ~(sig),                  \
+      sigprocmask (SIG_SETMASK, &sigprocmask_set, NULL))
 #endif
 #endif /* not POSIX_SIGNALS */