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CMakeLists.txt: add a option (BUILD_SMALL_DEBUG_FILES, default off) to create smaller binaries in debug mode. 

It forces link option -g1 instead og -g3 which allows basic debug.

This is especially useful on Mingw because binaries in debug build are very large:
_pcbnew.kiface: 1.25 Gb, small file option: 65Mb
This commit is contained in:
jean-pierre charras 2018-07-28 10:38:00 +02:00
parent 3e5cd86288
commit 9a6fe2b8cd
1 changed files with 19 additions and 2 deletions
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17
CMakeLists.txt
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@ -45,6 +45,13 @@ include( GNUInstallDirs )
# Path to local CMake modules.
set( CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMakeModules )
# On Windows, binaries created by link option -g3 are very large (more than 1Gb for pcbnew,
# and more than 3Gb for the full kicad suite)
# This option create binaries using link option -g1 that create much smaller files, but
# there are less info in debug (but the file names and line numbers are available)
option( BUILD_SMALL_DEBUG_FILES "In debug build: create smaller binaries." OFF )
#
# KiCad build options should be added below.
#
@ -274,8 +281,18 @@ if( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
set( CMAKE_C_FLAGS "-Wall ${CMAKE_C_FLAGS}" )
set( CMAKE_CXX_FLAGS "-Wall ${CMAKE_CXX_FLAGS}" )
# Link flags in Debug: -g1 and -ggdb1 or -g1 and -ggdb3 can be used.
# Level 1 produces minimal information, enough for making basic backtraces.
# This includes descriptions of functions and external variables, and line number tables,
# but no information about local variables.
# Level 3 includes full information, but binaries are much larger.
if( BUILD_SMALL_DEBUG_FILES )
set( CMAKE_C_FLAGS_DEBUG "-g1 -ggdb1 -DDEBUG" )
set( CMAKE_CXX_FLAGS_DEBUG "-g1 -ggdb1 -DDEBUG -Wno-deprecated-declarations" )
else()
set( CMAKE_C_FLAGS_DEBUG "-g3 -ggdb3 -DDEBUG" )
set( CMAKE_CXX_FLAGS_DEBUG "-g3 -ggdb3 -DDEBUG -Wno-deprecated-declarations" )
endif()
if( MINGW )
set( CMAKE_EXE_LINKER_FLAGS_RELEASE "-s" )