CMake/Modules/CMakeCommonLanguageInclude.cmake
Brad King 86578eccf2 Simplify CMake per-source license notices
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing".  The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.

Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically.  Manually fix up shebang lines and trailing
newlines in a few files.  Manually update the notices in a few files that the
script does not handle.
2016-09-27 15:14:44 -04:00

128 lines
5.0 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
# this file has flags that are shared across languages and sets
# cache values that can be initialized in the platform-compiler.cmake file
# it may be included by more than one language.
string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " $ENV{LDFLAGS}")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_INIT " $ENV{LDFLAGS}")
string(APPEND CMAKE_MODULE_LINKER_FLAGS_INIT " $ENV{LDFLAGS}")
foreach(t EXE SHARED MODULE STATIC)
foreach(c "" _DEBUG _RELEASE _MINSIZEREL _RELWITHDEBINFO)
string(STRIP "${CMAKE_${t}_LINKER_FLAGS${c}_INIT}" CMAKE_${t}_LINKER_FLAGS${c}_INIT)
endforeach()
endforeach()
if(NOT CMAKE_NOT_USING_CONFIG_FLAGS)
# default build type is none
if(NOT CMAKE_NO_BUILD_TYPE)
set (CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE_INIT} CACHE STRING
"Choose the type of build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
endif()
set (CMAKE_EXE_LINKER_FLAGS_DEBUG ${CMAKE_EXE_LINKER_FLAGS_DEBUG_INIT} CACHE STRING
"Flags used by the linker during debug builds.")
set (CMAKE_EXE_LINKER_FLAGS_MINSIZEREL ${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL_INIT} CACHE STRING
"Flags used by the linker during release minsize builds.")
set (CMAKE_EXE_LINKER_FLAGS_RELEASE ${CMAKE_EXE_LINKER_FLAGS_RELEASE_INIT} CACHE STRING
"Flags used by the linker during release builds.")
set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO
${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO_INIT} CACHE STRING
"Flags used by the linker during Release with Debug Info builds.")
set (CMAKE_SHARED_LINKER_FLAGS_DEBUG ${CMAKE_SHARED_LINKER_FLAGS_DEBUG_INIT} CACHE STRING
"Flags used by the linker during debug builds.")
set (CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL ${CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL_INIT}
CACHE STRING
"Flags used by the linker during release minsize builds.")
set (CMAKE_SHARED_LINKER_FLAGS_RELEASE ${CMAKE_SHARED_LINKER_FLAGS_RELEASE_INIT} CACHE STRING
"Flags used by the linker during release builds.")
set (CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO
${CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO_INIT} CACHE STRING
"Flags used by the linker during Release with Debug Info builds.")
set (CMAKE_MODULE_LINKER_FLAGS_DEBUG ${CMAKE_MODULE_LINKER_FLAGS_DEBUG_INIT} CACHE STRING
"Flags used by the linker during debug builds.")
set (CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL ${CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL_INIT}
CACHE STRING
"Flags used by the linker during release minsize builds.")
set (CMAKE_MODULE_LINKER_FLAGS_RELEASE ${CMAKE_MODULE_LINKER_FLAGS_RELEASE_INIT} CACHE STRING
"Flags used by the linker during release builds.")
set (CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO
${CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO_INIT} CACHE STRING
"Flags used by the linker during Release with Debug Info builds.")
set (CMAKE_STATIC_LINKER_FLAGS_DEBUG ${CMAKE_STATIC_LINKER_FLAGS_DEBUG_INIT} CACHE STRING
"Flags used by the linker during debug builds.")
set (CMAKE_STATIC_LINKER_FLAGS_MINSIZEREL ${CMAKE_STATIC_LINKER_FLAGS_MINSIZEREL_INIT}
CACHE STRING
"Flags used by the linker during release minsize builds.")
set (CMAKE_STATIC_LINKER_FLAGS_RELEASE ${CMAKE_STATIC_LINKER_FLAGS_RELEASE_INIT} CACHE STRING
"Flags used by the linker during release builds.")
set (CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO
${CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO_INIT} CACHE STRING
"Flags used by the linker during Release with Debug Info builds.")
endif()
# executable linker flags
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS_INIT}"
CACHE STRING "Flags used by the linker.")
# shared linker flags
set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS_INIT}"
CACHE STRING "Flags used by the linker during the creation of dll's.")
# module linker flags
set (CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS_INIT}"
CACHE STRING "Flags used by the linker during the creation of modules.")
# static linker flags
set (CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS_INIT}"
CACHE STRING "Flags used by the linker during the creation of static libraries.")
# Alias the build tool variable for backward compatibility.
set(CMAKE_BUILD_TOOL ${CMAKE_MAKE_PROGRAM})
mark_as_advanced(
CMAKE_VERBOSE_MAKEFILE
CMAKE_EXE_LINKER_FLAGS
CMAKE_EXE_LINKER_FLAGS_DEBUG
CMAKE_EXE_LINKER_FLAGS_MINSIZEREL
CMAKE_EXE_LINKER_FLAGS_RELEASE
CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO
CMAKE_SHARED_LINKER_FLAGS
CMAKE_SHARED_LINKER_FLAGS_DEBUG
CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL
CMAKE_SHARED_LINKER_FLAGS_RELEASE
CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO
CMAKE_MODULE_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS_DEBUG
CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL
CMAKE_MODULE_LINKER_FLAGS_RELEASE
CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO
CMAKE_STATIC_LINKER_FLAGS
CMAKE_STATIC_LINKER_FLAGS_DEBUG
CMAKE_STATIC_LINKER_FLAGS_MINSIZEREL
CMAKE_STATIC_LINKER_FLAGS_RELEASE
CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO
)