Minor fixes to enable compilation for the recent Python version

Author: ochubar

.github/workflows/pypi_publish.yml

@@ -89,6 +89,7 @@ jobs:
           python -m pip install --upgrade pip
           python -m pip install cibuildwheel
           python -m pip install packaging
+          python -m pip install setuptools
           echo "CIBW_BEFORE_ALL=pip install cmake" >> $GITHUB_ENV
           PYTH_VER=${{ matrix.python-version }}
           PYTH_VER=${PYTH_VER//.}
@@ -108,6 +109,8 @@ jobs:
           set -vxeuo pipefail
           cd env/python
           python -VV
+          python -m pip install packaging
+          python -m pip install setuptools
           python setup.py bdist_wheel
           ls -la dist/*
           mkdir -p ../../dist

cpp/cmake/CMakeLists.txt

@@ -75,6 +75,9 @@ add_library(genesis OBJECT ${genesis_source_files})
 target_link_libraries(genesis genmath)
 target_include_directories(genesis PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/../src/ext/genesis/genesis_july08/)
 target_compile_definitions(genesis PRIVATE ${SRW_DEFINITIONS})
+if(UNIX)
+    target_compile_options(genesis PRIVATE -std=c99 -Wno-implicit-int)
+endif()
 
 #genmath
 set(genmath_source_files