zig/cmake/install.cmake
Andrew Kelley caddbbc315 build: avoid compiling self-hosted twice
build.zig: add a 'compile' step to compile the self-hosted compiler
without installing it.
Compilation: set cache mode to whole when using the LLVM backend and
--enable-cache is passed.

This makes `zig build` act the same as it does with stage1. Upside is
that a second invocation of `zig build` on an unmodified source tree
will avoid redoing the compilation again. Downside is that it will
proliferate more garbage in the project-local cache (same as stage1).

This can eventually be fixed when Zig's incremental compilation is more
robust; we can go back to having LLVM use CacheMode.incremental and rely
on it detecting no changes and avoiding doing the flush() step.
2022-10-18 16:52:43 -07:00

28 lines
783 B
CMake

set(ZIG_INSTALL_ARGS build ${ZIG_BUILD_ARGS} --prefix "${CMAKE_INSTALL_PREFIX}")
execute_process(
COMMAND "${ZIG_EXECUTABLE}" ${ZIG_INSTALL_ARGS}
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
RESULT_VARIABLE _result)
if(_result)
message("::")
message(":: ERROR: ${_result}")
message(":: (execute_process)")
list(JOIN ZIG_INSTALL_ARGS " " s_INSTALL_LIBSTAGE2_ARGS)
message("::")
message(":: argv: ${ZIG_EXECUTABLE} ${s_INSTALL_LIBSTAGE2_ARGS}")
set(_args ${ZIG_EXECUTABLE} ${ZIG_INSTALL_ARGS})
list(LENGTH _args _len)
math(EXPR _len "${_len} - 1")
message("::")
foreach(_i RANGE 0 ${_len})
list(GET _args ${_i} _arg)
message(":: argv[${_i}]: ${_arg}")
endforeach()
message("::")
message(FATAL_ERROR)
endif()