Run Cython tests for binary wheels

Closes aleaxit#447

.github/workflows/build_wheels.yml

@@ -21,6 +21,11 @@ jobs:
           CIBW_BEFORE_BUILD: bash scripts/before_ci_build.sh
           CIBW_TEST_EXTRAS: tests
           CIBW_TEST_COMMAND: pytest {package}/test/
+          CIBW_TEST_COMMAND_LINUX: >
+            pytest {package}/test/ &&
+            python {package}/test_cython/runtests.py
+          CIBW_REPAIR_WHEEL_COMMAND_LINUX: >
+            bash scripts/repair_ci_wheel_linux.sh {dest_dir} {wheel}
 
       - uses: actions/upload-artifact@v3
         with:

scripts/repair_ci_wheel_linux.sh

@@ -0,0 +1,6 @@
+dest_dir=$1
+wheel=$2
+auditwheel repair -w ${dest_dir} ${wheel}
+wheel unpack --dest ${dest_dir} ${dest_dir}/*.whl
+cp /usr/local/include/{gmp,mpfr,mpc}.h ${dest_dir}/gmpy2-*/gmpy2/
+(cd ${dest_dir} && wheel pack gmpy2-*[0-9])

test_cython/setup_cython.py

@@ -1,19 +1,26 @@
 from setuptools import Extension, setup
 from Cython.Build import cythonize
-import platform
 import sys
 import os
+import platform
 import gmpy2
 
-ON_WINDOWS = platform.system() == 'Windows'
+gmpy2_packagedir = os.path.dirname(gmpy2.__file__)
+library_dirs = sys.path + [gmpy2_packagedir]
+libnames = ['mpc','mpfr','gmp']
+
+if platform.system() == 'Linux':
+    bundled_libs = gmpy2_packagedir+'/../gmpy2.libs/'
+    if os.path.isdir(bundled_libs):
+        library_dirs += [bundled_libs]
+        libnames = [':' + d for d in os.listdir(bundled_libs)]
+
 
 extensions = [
     Extension("test_cython", ["test_cython.pyx"],
-                include_dirs=sys.path + ([os.path.dirname(gmpy2.__file__)] if ON_WINDOWS else []),
-                library_dirs=sys.path + ([os.path.dirname(gmpy2.__file__)] if ON_WINDOWS else []),
-                libraries=['mpc','mpfr','gmp']
-            )
-]
+              include_dirs=sys.path + [gmpy2_packagedir],
+              library_dirs=library_dirs,
+              libraries=libnames)]
 
 setup(
     name="cython_gmpy_test",

test_cython/test_cython.pyx

@@ -1,4 +1,3 @@
-# distutils: libraries = gmp mpfr mpc
 from gmpy2 cimport *
 
 import_gmpy2()