Fix: link libpython-* to math library

Author: fangerer

graalpython/com.oracle.graal.python.cext/CMakeLists.txt

@@ -229,6 +229,9 @@ target_compile_options(${TARGET_LIBPYTHON} PRIVATE ${CFLAGS_WARNINGS})
 if(WIN32)
     target_link_directories(${TARGET_LIBPYTHON} PRIVATE ${GRAALVM_LLVM_LIB_DIR})
     target_link_libraries(${TARGET_LIBPYTHON} sulong-native graalvm-llvm)
+else()
+    # Link to math library; required for functions like 'hypot' or similar
+    target_link_libraries(${TARGET_LIBPYTHON} m)
 endif()
 
 install(TARGETS ${TARGET_LIBPYTHON} DESTINATION bin)