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cmake: hide private symbols by default #2301

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May 21, 2021
Merged

cmake: hide private symbols by default #2301

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12 changes: 12 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -131,6 +131,18 @@ if (${index} GREATER -1)
endif ()
message(STATUS "Required features: ${FMT_REQUIRED_FEATURES}")

if (FMT_MASTER_PROJECT AND NOT DEFINED CMAKE_CXX_VISIBILITY_PRESET)
set_verbose(CMAKE_CXX_VISIBILITY_PRESET hidden CACHE STRING
"Preset for the export of private symbols")
set_property(CACHE CMAKE_CXX_VISIBILITY_PRESET PROPERTY STRINGS
hidden default)
endif ()

if (FMT_MASTER_PROJECT AND NOT DEFINED CMAKE_VISIBILITY_INLINES_HIDDEN)
set_verbose(CMAKE_VISIBILITY_INLINES_HIDDEN ON CACHE BOOL
"Whether to add a compile flag to hide symbols of inline functions")
endif ()

if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(PEDANTIC_COMPILE_FLAGS -pedantic-errors -Wall -Wextra -pedantic
-Wold-style-cast -Wundef
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