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Tune compilation flags to reduce libraries size

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Add '_WINDLL' definition for the MSVC compilers family.
Check the 'FEATURE_optimize_size' value before replacing compiler flags
in the qt_internal_add_optimize_full_flags function. This is required,
because Qt::Core and Qt::Gui modules lost their ability to shrink,
when selecting the appropriate build type or features.

Fixes: QTBUG-89952
Change-Id: I982c25ea84e4793b4006ead0ee516b3f3eb2a054
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
This commit is contained in:
Alexey Edelev 2021-01-20 19:34:26 +01:00
parent df0e98d408
commit e425a2a4b8
2 changed files with 15 additions and 1 deletions
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11
cmake/QtFlagHandlingHelpers.cmake
View File

@ -593,13 +593,22 @@ function(qt_internal_add_optimize_full_flags)
""
${ARGN})
# Assume that FEATURE_optimize_full has higher priority. But if FEATURE_optimize_full is OFF,
# flags are set by FEATURE_optimize_size should remain unchanged.
if(QT_FEATURE_optimize_size AND NOT QT_FEATURE_optimize_full)
return()
endif()
set(args "")
if(arg_IN_CACHE)
list(APPEND args IN_CACHE)
endif()
qt_internal_get_enabled_languages_for_flag_manipulation(enabled_languages)
set(configs RELEASE RELWITHDEBINFO MINSIZEREL)
set(configs RELEASE RELWITHDEBINFO)
if(QT_FEATURE_optimize_full) # Assume that FEATURE_optimize_full has higher priority.
list(APPEND configs MINSIZEREL)
endif()
qt_internal_remove_known_optimization_flags(${args} CONFIGS ${configs})

5
cmake/QtInternalTargets.cmake
View File

@ -149,6 +149,11 @@ endif()
if(WIN32)
target_compile_definitions(PlatformCommonInternal INTERFACE "UNICODE;_UNICODE")
if(MSVC)
target_compile_definitions(PlatformCommonInternal INTERFACE
"$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,SHARED_LIBRARY>:_WINDLL>"
)
endif()
endif()
if(UIKIT)