1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/yosys.h b/kernel/yosys.h
index b9182c1df..11f356adc 100644
--- a/kernel/yosys.h
+++ b/kernel/yosys.h
@@ -127,6 +127,7 @@ namespace RTLIL {
 
 std::string stringf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
 std::string vstringf(const char *fmt, va_list ap);
+int readsome(std::istream &f, char *s, int n);
 std::string next_token(std::string &text, const char *sep);
 bool patmatch(const char *pattern, const char *string);
 int run_command(const std::string &command, std::function<void(const std::string&)> process_line = std::function<void(const std::string&)>());