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Add support for building position-independent executables.

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This commit is contained in:
Felix Geyer 2012-04-23 16:26:15 +02:00
parent bf25959b68
commit 6340ed8993
1 changed files with 12 additions and 2 deletions
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14
CMakeLists.txt
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@ -22,6 +22,7 @@ set( CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake )
option(WITH_TESTS "Enable building of unit tests" ON)
option(WITH_GUI_TESTS "Enable building of GUI tests" OFF)
option(WITH_LTO "Enable Link Time Optimization (LTO)" OFF)
option(WITH_PIE "Build as Position-independent executable (PIE)" OFF)
set( KEEPASSX_VERSION "0.9.0" )
@ -80,7 +81,7 @@ endif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
if(WITH_LTO)
include(CheckCXXCompilerFlag)
if(CMAKE_COMPILER_IS_GNUCXX)
if(CMAKE_COMPILER_IS_GNUCC and CMAKE_COMPILER_IS_GNUCXX)
check_cxx_compiler_flag("-flto -fuse-linker-plugin" LTO_AVAILABLE)
if(LTO_AVAILABLE)
@ -90,9 +91,18 @@ if(WITH_LTO)
endif(LTO_AVAILABLE)
else()
message(FATAL_ERROR "LTO is only supported with gcc")
endif(CMAKE_COMPILER_IS_GNUCXX)
endif(CMAKE_COMPILER_IS_GNUCC and CMAKE_COMPILER_IS_GNUCXX)
endif(WITH_LTO)
if(WITH_PIE)
if((CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG) AND (CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_CLANGXX))
add_gcc_compiler_flags("-fPIE")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fPIE -pie")
else()
message(FATAL_ERROR "PIE is only supported with gcc and clang")
endif((CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG) AND (CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_CLANGXX))
endif(WITH_PIE)
if( APPLE OR MINGW )
set( PROGNAME KeePassX )
else( APPLE OR MINGW )