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-rw-r--r--libbutl/process.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/libbutl/process.cxx b/libbutl/process.cxx
index c4d2412..b94e2f2 100644
--- a/libbutl/process.cxx
+++ b/libbutl/process.cxx
@@ -5,6 +5,7 @@
#include <libbutl/process.hxx>
#ifndef _WIN32
+# include <signal.h> // SIG*
# include <unistd.h> // execvp, fork, dup2, pipe, chdir, *_FILENO, getpid
# include <sys/wait.h> // waitpid
# include <sys/types.h> // _stat