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{cmake} Add option to expose includes as SYSTEM headers

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This can allow projects including pugixml to avoid reporting warnings in pugixml code (depending on compiler) by marking them as SYSTEM headers.

https://cmake.org/cmake/help/latest/command/target_include_directories.html
This commit is contained in:
Andy Maloney 2023-02-27 13:50:59 -05:00
parent c2c61a5905
commit 5ea159d15e
1 changed files with 12 additions and 1 deletions
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13
CMakeLists.txt
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@ -27,7 +27,7 @@ set(PUGIXML_BUILD_DEFINES CACHE STRING "Build defines for custom options")
separate_arguments(PUGIXML_BUILD_DEFINES)
# Technically not needed for this file. This is builtin CMAKE global variable.
option(BUILD_SHARED_LIBS "Build shared instead of static library" OFF)
option(BUILD_SHARED_LIBS "Build shared instead of static library" OFF)
# Expose option to build PUGIXML as static as well when the global BUILD_SHARED_LIBS variable is set
cmake_dependent_option(PUGIXML_BUILD_SHARED_AND_STATIC_LIBS
@ -44,6 +44,9 @@ option(PUGIXML_NO_STL "Disable STL" OFF)
option(PUGIXML_NO_EXCEPTIONS "Disable Exceptions" OFF)
mark_as_advanced(PUGIXML_NO_XPATH PUGIXML_NO_STL PUGIXML_NO_EXCEPTIONS)
# Other options
option(PUGIXML_HEADER_DIRS_AS_SYSTEM "Expose headers as system includes." ON)
# Policy configuration
if(POLICY CMP0091)
cmake_policy(SET CMP0091 NEW) # Enables use of MSVC_RUNTIME_LIBRARY
@ -95,6 +98,12 @@ set(versioned-dir $<$<BOOL:${PUGIXML_USE_VERSIONED_LIBDIR}>:/pugixml-${PROJECT_V
set(libs)
# Optionally mark header include idrectoriess as SYSTEM
set(PUGIXML_SYSTEM_HEADERS_ATTRIBUTE "")
if (PUGIXML_EXPOSE_HEADERS_AS_SYSTEM)
set(PUGIXML_SYSTEM_HEADERS_ATTRIBUTE SYSTEM)
endif ()
if (BUILD_SHARED_LIBS)
add_library(pugixml-shared SHARED
${PROJECT_SOURCE_DIR}/scripts/pugixml_dll.rc
@ -108,6 +117,7 @@ if (BUILD_SHARED_LIBS)
set_property(TARGET pugixml-shared PROPERTY EXPORT_NAME shared)
target_include_directories(pugixml-shared
${PUGIXML_SYSTEM_HEADERS_ATTRIBUTE}
PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src>)
target_compile_definitions(pugixml-shared
@ -133,6 +143,7 @@ if (NOT BUILD_SHARED_LIBS OR PUGIXML_BUILD_SHARED_AND_STATIC_LIBS)
set_property(TARGET pugixml-static PROPERTY EXPORT_NAME static)
target_include_directories(pugixml-static
${PUGIXML_SYSTEM_HEADERS_ATTRIBUTE}
PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src>)
target_compile_definitions(pugixml-static