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Linux32.cmake
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Linux32.cmake
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# Copyright (c) 2019 The Bitcoin developers
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR i686)
# Use given TOOLCHAIN_PREFIX if specified
if(CMAKE_TOOLCHAIN_PREFIX)
set(TOOLCHAIN_PREFIX ${CMAKE_TOOLCHAIN_PREFIX})
else()
set(TOOLCHAIN_PREFIX ${CMAKE_SYSTEM_PROCESSOR}-pc-linux-gnu)
endif()
# Cross compilers to use for C and C++
set(CMAKE_C_COMPILER gcc)
set(CMAKE_CXX_COMPILER g++)
set(CMAKE_C_COMPILER_TARGET ${TOOLCHAIN_PREFIX})
set(CMAKE_CXX_COMPILER_TARGET ${TOOLCHAIN_PREFIX})
# Target environment on the build host system
# Set 1st to directory with the cross compiler's C/C++ headers/libs
set(CMAKE_FIND_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX}")
# We also may have built dependencies for the native platform.
set(CMAKE_PREFIX_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX}/native")
# Modify default behavior of FIND_XXX() commands to:
# - search for headers in the target environment,
# - search the libraries in the target environment first then the host (to find
# the compiler supplied libraries),
# - search for programs in the build host environment.
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
string(APPEND CMAKE_C_FLAGS_INIT " -m32")
string(APPEND CMAKE_CXX_FLAGS_INIT " -m32")