Building the aarch64 llvm unicode rtl on macOS with ``` setenv CLANGOPTION -Clv15.0 setenv XR /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk pushd rtl make all FPC=/usr/local/lib/fpc/3.3.1-llvm/ppca64 CPU_TARGET=aarch64 OPT="-Clv15.0 -dUSEWIDESTRING -O3 -Si" SUB_TARGET=unicodertl LLVM=1 popd pushd packages make all FPC=/usr/local/lib/fpc/3.3.1-llvm/ppca64 CPU_TARGET=aarch64 OPT="-Clv15.0 -dUSEWIDESTRING -O3 -Si" SUB_TARGET=unicodertl LLVM=1 popd ``` leads to a compiler failure as follows ``` Start compiling package libjack for target aarch64-darwin-unicodertl. Compiling libjack/units/aarch64-darwin-unicodertl/BuildUnit_libjack.pp Compiling ./libjack/src/jack.pp Compiling ./libjack/src/jackringbuffer.pp Compiling ./libjack/src/jackuuid.pp Compiling ./libjack/src/jacksession.pp Compiling ./libjack/src/jackthread.pp Compiling ./libjack/src/jackstatistics.pp Compiling ./libjack/src/jacknet.pp Compiling ./libjack/src/jackmidiport.pp Compiling ./libjack/src/jackmetadata.pp Compiling ./libjack/src/jackjslist.pp External command "/usr/local/lib/fpc/3.3.1-llvm/ppca64 -Tdarwin -tunicodertl -FUlibjack/units/aarch64-darwin-unicodertl/ -Fu/Users/administrator/fpc-svn/fpc/rtl/units/aarch64-darwin-unicodertl/ -Fulibjack/src -Filibjack/src -Fl -tunicodertl -XR/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -Clv15.0 -dUSEWIDESTRING -O3 -Si -daarch64 -Sc -viq libjack/units/aarch64-darwin-unicodertl/BuildUnit_libjack.pp" failed with exit code 11. Console output: Free Pascal Compiler version 3.3.1 [2026/04/12] for aarch64 Copyright (c) 1993-2026 by Florian Klaempfl and others Target OS: Darwin for AArch64 Compiling libjack/units/aarch64-darwin-unicodertl/BuildUnit_libjack.pp Compiling ./libjack/src/jack.pp Assembling (pipe) libjack/units/aarch64-darwin-unicodertl/jack.ll Compiling ./libjack/src/jackringbuffer.pp Assembling (pipe) libjack/units/aarch64-darwin-unicodertl/jackringbuffer.ll Compiling ./libjack/src/jackuuid.pp Compiling ./libjack/src/jacksession.pp Assembling (pipe) libjack/units/aarch64-darwin-unicodertl/jacksession.ll Compiling ./libjack/src/jackthread.pp Assembling (pipe) libjack/units/aarch64-darwin-unicodertl/jackthread.ll Compiling ./libjack/src/jackstatistics.pp Compiling ./libjack/src/jacknet.pp Assembling (pipe) libjack/units/aarch64-darwin-unicodertl/jacknet.ll Compiling ./libjack/src/jackmidiport.pp Assembling (pipe) libjack/units/aarch64-darwin-unicodertl/jackmidiport.ll Compiling ./libjack/src/jackmetadata.pp Assembling (pipe) libjack/units/aarch64-darwin-unicodertl/jackmetadata.ll Compiling ./libjack/src/jackjslist.pp The installer encountered the following error: Compilation of "units/aarch64-darwin-unicodertl/BuildUnit_libjack.pp" failed $0000000103024819 $0000000103036DCD $000000010303767B $0000000103022925 make: *** [all] Error 1 ``` The error disappears when replacing -Si by -Si-. Note that libjack/src/jslist.inc uses inline a lot.