Build native extensions in parallel (multi-core)#100

JustinMDotNet wants to merge 2 commits into

microsoft:mainmicrosoft/sql-server-language-extensions:mainfrom

JustinMDotNet:dev/jumoran/pr-build-parallel-flagsJustinMDotNet/sql-server-language-extensions:dev/jumoran/pr-build-parallel-flagsCopy head branch name to clipboard