GitLab

Consider the following project:

cmake_minimum_required(VERSION 3.16)

project(test_nmc_install CXX)

set(source_file "${CMAKE_CURRENT_BINARY_DIR}/lib.cpp")
file(WRITE "${source_file}" "int foo() {return 0;}")

set(CMAKE_DEBUG_POSTFIX "_debug")
add_library(lib "${source_file}")

install(TARGETS lib)

$ cmake .. -G"Ninja Multi-Config" -DCMAKE_CONFIGURATION_TYPES="Release;Debug" -DCMAKE_INSTALL_PREFIX=/home/alex/nmc_install_all/install -DCMAKE_CROSS_CONFIGS="all" -DCMAKE_DEFAULT_CONFIGS="all"

# builds both debug and release libraries
$ ninja 

$ ninja install
-- Install configuration: "Release"
-- Installing: /home/alex/nmc_install_all/install/lib/liblib.a


$ ninja install:Debug
-- Install configuration: "Debug"
-- Installing: /home/alex/nmc_install_all/install/lib/liblib_debug.a

# or alternatively

$ ninja -f build-Debug.ninja install
-- Install configuration: "Debug"
-- Installing: /home/alex/nmc_install_all/install/lib/liblib_debug.a

$ ninja install:all
ninja: error: unknown target 'install:all'

While -DCMAKE_DEFAULT_CONFIGS="all" makes sure that the default ninja target builds all configurations, the install target still installs only one configuration.

I think it would be useful (and also consistent) to make the default install targets install for the same configurations as specified in CMAKE_DEFAULT_CONFIGS.

Additionally as can be seen there is no equivalent install:all target similar how there is lib:all or all:all.