Can't compile CERTI-3.5.1

[Norrica]

I am unable to build version 3.5.1 from http://download.savannah.nongnu.org/releases/certi/
Using:

#60~20.04.1-Ubuntu SMP
5.8.0-53-generic

Here is an output from terminal:

~/Downloads/CERTI-3.5.1-Source1/build$ cmake -DCMAKE_INSTALL_PREFIX=/install /home/norica/Downloads/CERTI-3.5.1-Source1
-- The CXX compiler identification is GNU 9.3.0
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- The C compiler identification is GNU 9.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Native build.
-- Target is 64 bits
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Target is Little Endian
-- No build type selected, default to Debug
-- Configuring CERTI version 3.5.1
-- Looking for time.h
-- Looking for time.h - found
-- Looking for clock_gettime
-- Looking for clock_gettime - found
-- Looking for clock_settime
-- Looking for clock_settime - found
-- Looking for clock_getres
-- Looking for clock_getres - found
-- Looking for clock_nanosleep
-- Looking for clock_nanosleep - found
-- Looking for sys/time.h
CMake Warning (dev) at /usr/share/cmake-3.16/Modules/CheckIncludeFile.cmake:80 (message):
  Policy CMP0075 is not set: Include file check macros honor
  CMAKE_REQUIRED_LIBRARIES.  Run "cmake --help-policy CMP0075" for policy
  details.  Use the cmake_policy command to set the policy and suppress this
  warning.

  CMAKE_REQUIRED_LIBRARIES is set to:

    /usr/lib/x86_64-linux-gnu/librt.so

  For compatibility with CMake 3.11 and below this check is ignoring it.
Call Stack (most recent call first):
  CMakeLists.txt:316 (CHECK_INCLUDE_FILE)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Looking for sys/time.h - found
-- Looking for gettimeofday
-- Looking for gettimeofday - found
-- Looking for basename in gen
-- Looking for basename in gen - not found
-- Looking for connect in socket
-- Looking for connect in socket - not found
-- Found LibXml2: /usr/lib/x86_64-linux-gnu/libxml2.so (found version "2.9.10") 
-- Found X11: /usr/include   
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so - found
-- Looking for gethostbyname
-- Looking for gethostbyname - found
-- Looking for connect
-- Looking for connect - found
-- Looking for remove
-- Looking for remove - found
-- Looking for shmat
-- Looking for shmat - found
-- X11 include directory: /usr/include
-- Looking for lex...
-- Looking for lex... - NOT found
-- Looking for yacc...
-- Looking for yacc... - NOT found
-- INHIBIT Compiler warning for LEX/YACC generated files
-- INHIBIT Compiler (GCC) warning for gengetopt generated files: /home/norica/Downloads/CERTI-3.5.1-Source1/RTIG/RTIG_cmdline.c;/home/norica/Downloads/CERTI-3.5.1-Source1/RTIG/RTIG_cmdline.h.
-- INHIBIT Compiler (GCC) warning for gengetopt generated files: /home/norica/Downloads/CERTI-3.5.1-Source1/RTIA/RTIA_cmdline.c;/home/norica/Downloads/CERTI-3.5.1-Source1/RTIA/RTIA_cmdline.h.
-- libRTI variant: HLA 1.3 NG
-- libRTI variant: HLA 1516
-- libRTI variant: HLA 1516e
-- INHIBIT Compiler (GCC) warning for gengetopt generated files: Billard_cmdline.c;Billard_cmdline.h.
-- INHIBIT Compiler (GCC) warning for gengetopt generated files: /home/norica/Downloads/CERTI-3.5.1-Source1/test/testFederate/testFederate_cmdline.c;/home/norica/Downloads/CERTI-3.5.1-Source1/test/testFederate/testFederate_cmdline.h.
-- Found PythonInterp: /usr/bin/python (found version "2.7.18") 
-- *** CERTI has been successfully configured ********
-- Configuring done
-- Generating done
-- Build files have been written to: /home/norica/Downloads/CERTI-3.5.1-Source1/build

~/Downloads/CERTI-3.5.1-Source1/build$ make

Scanning dependencies of target HLA
[  0%] Building CXX object libHLA/CMakeFiles/HLA.dir/HLAbuffer.cc.o
[  1%] Building C object libHLA/CMakeFiles/HLA.dir/sha1.c.o
[  2%] Building CXX object libHLA/CMakeFiles/HLA.dir/MurmurHash2.cpp.o
[  2%] Building CXX object libHLA/CMakeFiles/HLA.dir/MurmurHash3.cpp.o
[  3%] Building C object libHLA/CMakeFiles/HLA.dir/PMurHash.c.o
[  3%] Building C object libHLA/CMakeFiles/HLA.dir/tlsf.c.o
/home/norica/Downloads/CERTI-3.5.1-Source1/libHLA/tlsf.c:176:20: warning: anonymous variadic macros were introduced in C99 [-Wvariadic-macros]
  176 | # define PRINT_MSG(...) printf(__VA_ARGS__)
      |                    ^~~
/home/norica/Downloads/CERTI-3.5.1-Source1/libHLA/tlsf.c:177:20: warning: anonymous variadic macros were introduced in C99 [-Wvariadic-macros]
  177 | # define ERROR_MSG(...) fprintf(stderr, __VA_ARGS__)
      |                    ^~~
[  4%] Building CXX object libHLA/CMakeFiles/HLA.dir/MessageBuffer.cc.o
[  4%] Building C object libHLA/CMakeFiles/HLA.dir/MsgBuffer.c.o
[  5%] Building CXX object libHLA/CMakeFiles/HLA.dir/Clock.cc.o
[  5%] Building CXX object libHLA/CMakeFiles/HLA.dir/ClockFactory.cc.o
[  6%] Building CXX object libHLA/CMakeFiles/HLA.dir/PosixClock.cc.o
[  6%] Building CXX object libHLA/CMakeFiles/HLA.dir/GettimeofdayClock.cc.o
[  7%] Building CXX object libHLA/CMakeFiles/HLA.dir/SHMPosix.cc.o
[  7%] Building CXX object libHLA/CMakeFiles/HLA.dir/SHMSysV.cc.o
[  8%] Building CXX object libHLA/CMakeFiles/HLA.dir/SemaphorePosix.cc.o
[  8%] Building CXX object libHLA/CMakeFiles/HLA.dir/SemaphoreSysV.cc.o
[  9%] Linking CXX shared library libHLAd.so
[  9%] Built target HLA
Scanning dependencies of target MessageBufferTests
[  9%] Building CXX object libHLA/CMakeFiles/MessageBufferTests.dir/MessageBufferTests.cc.o
[ 10%] Linking CXX executable MessageBufferTests
[ 10%] Built target MessageBufferTests
Scanning dependencies of target TestClocks
[ 11%] Building CXX object libHLA/CMakeFiles/TestClocks.dir/TestClocks.cc.o
[ 11%] Linking CXX executable TestClocks
[ 11%] Built target TestClocks
Scanning dependencies of target MsgBufferTests
[ 12%] Building C object libHLA/CMakeFiles/MsgBufferTests.dir/MsgBufferTests.c.o
[ 12%] Linking C executable MsgBufferTests
[ 12%] Built target MsgBufferTests
Scanning dependencies of target TestHLAtypes
[ 12%] Building CXX object libHLA/CMakeFiles/TestHLAtypes.dir/TestHLAtypes.cc.o
[ 13%] Linking CXX executable TestHLAtypes
[ 13%] Built target TestHLAtypes
[ 14%] Generating syntax.cc, syntax.h
/bin/sh: 1: YACC_PROGRAM-NOTFOUND: not found
make[2]: *** [libCERTI/CMakeFiles/CERTI.dir/build.make:66: libCERTI/syntax.cc] Error 127
make[1]: *** [CMakeFiles/Makefile2:1544: libCERTI/CMakeFiles/CERTI.dir/all] Error 2
make: *** [Makefile:163: all] Error 2

What is wrong?