diff options
| -rw-r--r-- | CMakeLists.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index a515303..285ac4d 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -4,6 +4,8 @@ cmake_minimum_required(VERSION 2.8) project(libfec ASM C) +option(BUILD_32BIT_ON_64BIT "Build a 32-bit library on a 64-bit system" OFF) + # Select the release build type by default to get optimization flags if(NOT CMAKE_BUILD_TYPE) set(CMAKE_BUILD_TYPE "Release") @@ -39,6 +41,14 @@ endif() ######################################################################## # Compiler specific setup ######################################################################## +if(BUILD_32BIT_ON_64BIT) + set(CMAKE_SYSTEM_PROCESSOR "i386") + set(CMAKE_SIZEOF_VOID_P 4) + set(CMAKE_C_FLAGS -m32) + set(CMAKE_CXX_FLAGS -m32) + add_definitions(-m32) +endif() + if((CMAKE_SYSTEM_PROCESSOR MATCHES "i386|i686|x86|AMD64") AND (CMAKE_SIZEOF_VOID_P EQUAL 4)) set(TARGET_ARCH "x86") elseif((CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|AMD64") AND (CMAKE_SIZEOF_VOID_P EQUAL 8)) |