Found with -Wmissing-prototypes
Signed-off-by: Rosen Penev <ros...@gmail.com>
---
io.cc | 1 +
1 file changed, 1 insertion(+)
diff --git a/io.cc b/io.cc
index f8fbdbf..fc1f1d0 100644
--- a/io.cc
+++ b/io.cc
@@ -34,6 +34,7 @@ namespace {
int volatile signum_ = 0; // user pressed Ctrl-C or similar
+extern "C" void sighandler( int signum );
extern "C" void sighandler( int signum )
{ if( signum_ == 0 && signum > 0 ) signum_ = signum; }
--
2.17.1
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