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xo-cmake: + xo_include_headeronly_options2()

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Roland Conybeare 2023-09-27 17:20:26 -04:00
commit 31d8ce44de
1 changed files with 33 additions and 1 deletions
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34
cmake/xo_cxx.cmake
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@ -29,7 +29,8 @@ macro(xo_toplevel_compile_options)
endmacro()
# ----------------------------------------------------------------
# use this in subdirs that compile c++ code
# use this in subdirs that compile c++ code.
# do not use for header-only subsystems; see xo_include_headeronly_options2()
#
macro(xo_include_options2 target)
# ----------------------------------------------------------------
@ -62,6 +63,37 @@ macro(xo_include_options2 target)
endif()
endmacro()
macro(xo_include_headeronly_options2 target)
# ----------------------------------------------------------------
# PROJECT_SOURCE_DIR:
# so we can for example write
# #include "ordinaltree/foo.hpp"
# from anywhere in the project
# PROJECT_BINARY_DIR:
# since generated version file will be in build directory,
# need that build directory to also appear in
# compiler's include path
#
target_include_directories(
${target} INTERFACE
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include> # e.g. for #include "indentlog/scope.hpp"
$<INSTALL_INTERFACE:include>
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include/${target}> # e.g. for #include "Refcounted.hpp" in refcnt/src
$<INSTALL_INTERFACE:include/${target}>
$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}> # e.g. for generated .hpp files
)
# ----------------------------------------------------------------
# make standard directories for std:: includes explicit
# so that
# (1) they appear in compile_commands.json.
# (2) clangd (run from emacs lsp-mode) can find them
#
if(CMAKE_EXPORT_COMPILE_COMMANDS)
set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
endif()
endmacro()
# ----------------------------------------------------------------
#
# Require: