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Add build variable: FMT_MASTER_PROJECT #2100

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Jan 17, 2021
Merged

Add build variable: FMT_MASTER_PROJECT #2100

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22 changes: 12 additions & 10 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -7,10 +7,12 @@ endif()

# Determine if fmt is built as a subproject (using add_subdirectory)
# or if it is the master project.
set(MASTER_PROJECT OFF)
if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(MASTER_PROJECT ON)
message(STATUS "CMake version: ${CMAKE_VERSION}")
if (NOT DEFINED FMT_MASTER_PROJECT)
set(FMT_MASTER_PROJECT OFF)
if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(FMT_MASTER_PROJECT ON)
message(STATUS "CMake version: ${CMAKE_VERSION}")
endif ()
endif ()

# Joins arguments and places the results in ${result_var}.
Expand Down Expand Up @@ -44,7 +46,7 @@ endfunction()
# Set the default CMAKE_BUILD_TYPE to Release.
# This should be done before the project command since the latter can set
# CMAKE_BUILD_TYPE itself (it does so for nmake).
if (MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
if (FMT_MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
set_verbose(CMAKE_BUILD_TYPE Release CACHE STRING
"Choose the type of build, options are: None(CMAKE_CXX_FLAGS or "
"CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
Expand All @@ -61,9 +63,9 @@ option(FMT_WERROR "Halt the compilation with an error on compiler warnings."
OFF)

# Options that control generation of various targets.
option(FMT_DOC "Generate the doc target." ${MASTER_PROJECT})
option(FMT_INSTALL "Generate the install target." ${MASTER_PROJECT})
option(FMT_TEST "Generate the test target." ${MASTER_PROJECT})
option(FMT_DOC "Generate the doc target." ${FMT_MASTER_PROJECT})
option(FMT_INSTALL "Generate the install target." ${FMT_MASTER_PROJECT})
option(FMT_TEST "Generate the test target." ${FMT_MASTER_PROJECT})
option(FMT_FUZZ "Generate the fuzz target." OFF)
option(FMT_CUDA_TEST "Generate the cuda-test target." OFF)
option(FMT_OS "Include core requiring OS (Windows/Posix) " ON)
Expand Down Expand Up @@ -144,7 +146,7 @@ if (MSVC)
set(WERROR_FLAG /WX)
endif ()

if (MASTER_PROJECT AND CMAKE_GENERATOR MATCHES "Visual Studio")
if (FMT_MASTER_PROJECT AND CMAKE_GENERATOR MATCHES "Visual Studio")
# If Microsoft SDK is installed create script run-msbuild.bat that
# calls SetEnv.cmd to set up build environment and runs msbuild.
# It is useful when building Visual Studio projects with the SDK
Expand Down Expand Up @@ -341,7 +343,7 @@ if (FMT_FUZZ)
endif ()

set(gitignore ${PROJECT_SOURCE_DIR}/.gitignore)
if (MASTER_PROJECT AND EXISTS ${gitignore})
if (FMT_MASTER_PROJECT AND EXISTS ${gitignore})
# Get the list of ignored files from .gitignore.
file (STRINGS ${gitignore} lines)
list(REMOVE_ITEM lines /doc/html)
Expand Down