# Makefile Variables

This page documents specific build flags that can be used in order to build the packages on Procursus, and can all be found within the main Makefile. The table below showcases build flags you can pass as options when using Procursus build commands.

Variable Required Function Example
MEMO_TARGET Yes Specific architecture type that packages are built in iphoneos-arm64
MEMO_CFVER Yes CoreFoundation value of the minimum *OS version to compile for 1700, which represents the CoreFoundation version that corresponds to iOS 14
NO_PGP No Specifies whether GPG signature checks on tarballs should be skipped. Set this option to 1 to enable it NO_PGP=1
MEMO_QUIET No Allows unnecessary warnings to be silenced. Set this option to 1 to enable it MEMO_QUIET=1
TARGET_SYSROOT Yes Specifies the PATH of your iOS SDK. Check the Makefile to see what each supported build system defaults to /usr/share/SDKs/iPhoneOS.sdk on iOS
MACOSX_SYSROOT Yes Specifies the PATH of your macOS SDK. Check the Makefile to see what each supported build system defaults to /usr/share/SDKs/MacOSX.sdk on iOS
BUILD_ROOT No Allows for specific packages or architecture suits to sent to a different place once compiled, rather than within the Git repository itself This can be any path, as long as the directory exists
MEMO_FORCE_LTO No On macOS, LTO is enabled automatically, however on Linux and FreeBSD, it must be explicitly enabled in cctools-port. MEMO_FORCE_LTO=1
MEMO_ALT_LTO_LIB No Specify an alternative libLTO.{so,dylib} path that will be passed to the linker with -lto_library. /usr/local/llvm11/lib/libLTO.so
Last Updated: 10/4/2021, 1:43:41 PM