Revert "load extension."

This reverts commit a800a4f2f710bece4900decd098f43aa8a8f16a7.
Revert "fix bad source path."

This reverts commit 4e13f67abf37a05a9222c8bfee8f833b54eb2f4d.
Revert "ammend author."

This reverts commit b2e6dcb3eff1e97d8df87ac2195d51f02c0f9ee6.
Revert "Changed "configure_options" option to object format for better configurability."

This reverts commit 93e35ee52a8b09f985987ba5afd6d3e34d4dc39f.