cffi: clean up recipe, drop Python 3.9. (#11708)

On-tree recipes that depend on cffi:

- argon2_cffi_bindings
- bcrypt
- pycares
- pynacl

So we're doing the same on those too in one go.

Also:

- moved all recipes to use build/installer instead of setup.py.
- fixed calling of tests on cffi.

dev-python/bcrypt/bcrypt-3.2.0.recipe

@@ -4,7 +4,7 @@ servers."
 HOMEPAGE="https://pypi.python.org/pypi/bcrypt"
 COPYRIGHT="2013 Donald Stufft"
 LICENSE="Apache v2"
-REVISION="6"
+REVISION="7"
 SOURCE_URI="https://pypi.io/packages/source/b/bcrypt/bcrypt-$portVersion.tar.gz"
 CHECKSUM_SHA256="5b93c1726e50a93a033c36e5ca7fdcd29a5c7395af50a6892f5d9e7c6cfbfb29"
 
@@ -25,47 +25,52 @@ BUILD_PREREQUIRES="
 	gcc$secondaryArchSuffix
 	"
 
-PYTHON_PACKAGES=(python39 python310)
-PYTHON_VERSIONS=(3.9 3.10)
-for i in "${!PYTHON_PACKAGES[@]}"; do
-pythonPackage=${PYTHON_PACKAGES[i]}
-pythonVersion=${PYTHON_VERSIONS[$i]}
-eval "PROVIDES_${pythonPackage}=\"\
-	${portName}_$pythonPackage = $portVersion\
-	\"; \
-REQUIRES_$pythonPackage=\"\
-	haiku\n\
-	cffi${secondaryArchSuffix}_$pythonPackage\n\
-	cmd:python$pythonVersion\
-	\""
-if [ "$targetArchitecture" = "x86_gcc2" ]; then
-	eval "PROVIDES_${pythonPackage}+=\"\n\
-		bcrypt_$pythonPackage = $portVersion\
+PYTHON_VERSIONS=(3.10)
+
+for i in "${!PYTHON_VERSIONS[@]}"; do
+	pythonVersion=${PYTHON_VERSIONS[$i]}
+	pythonPackage=python${pythonVersion//.}
+
+	eval "PROVIDES_${pythonPackage}=\"
+		${portName}_$pythonPackage = $portVersion
 		\""
-fi
-BUILD_REQUIRES="$BUILD_REQUIRES
-	cffi${secondaryArchSuffix}_$pythonPackage
-	setuptools_$pythonPackage"
-BUILD_PREREQUIRES="$BUILD_PREREQUIRES
-	cmd:python$pythonVersion"
+	if [ "$targetArchitecture" = x86_gcc2 ]; then
+		eval "PROVIDES_${pythonPackage}+=\"
+			bcrypt_$pythonPackage = $portVersion
+			\""
+	fi
+
+	eval "REQUIRES_$pythonPackage=\"
+		haiku
+		cffi_$pythonPackage
+		cmd:python$pythonVersion
+		\""
+
+	BUILD_REQUIRES+="
+		cffi_$pythonPackage
+		build_$pythonPackage
+		installer_$pythonPackage
+		setuptools_$pythonPackage
+		wheel_$pythonPackage
+		"
+	BUILD_PREREQUIRES+="
+		cmd:python$pythonVersion
+		"
 done
 
 INSTALL()
 {
-	for i in "${!PYTHON_PACKAGES[@]}"; do
-		pythonPackage=${PYTHON_PACKAGES[i]}
+	for i in "${!PYTHON_VERSIONS[@]}"; do
 		pythonVersion=${PYTHON_VERSIONS[$i]}
+		pythonPackage=python${pythonVersion//.}
 
 		python=python$pythonVersion
-		installLocation=$prefix/lib/$python/vendor-packages/
-		export PYTHONPATH=$installLocation:$PYTHONPATH
 		export CFLAGS="-D_BSD_SOURCE"
-		mkdir -p $installLocation
-		rm -rf build
-		$python setup.py build install \
-			--root=/ --prefix=$prefix
 
-		packageEntries  $pythonPackage \
+		$python -m build --wheel --skip-dependency-check --no-isolation
+		$python -m installer --p $prefix dist/*-$portVersion-cp${pythonVersion//.}-*.whl
+
+		packageEntries $pythonPackage \
 			$prefix/lib/python*
 	done
 }