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CMake: CMAKE_SIZEOF_VOID_P must be 8 for an x86_64 build

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This is an issue because CMAKE_SYSTEM_PROCESSOR is defined as the host
processor when not cross-compiling, and building for Win32 doesn't count
as cross-compiling.
This commit is contained in:
Michael Maltese 2017-01-27 00:56:38 -08:00
parent f37c5f1f1c
commit 4a422dffaa
1 changed files with 4 additions and 2 deletions
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6
CMakeLists.txt
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@ -166,7 +166,7 @@ if(ENABLE_GENERIC)
message(STATUS "Warning! Building generic build!")
set(_M_GENERIC 1)
add_definitions(-D_M_GENERIC=1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|AMD64")
elseif(_ARCH_64 AND CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|AMD64")
set(_M_X86 1)
set(_M_X86_64 1)
add_definitions(-D_M_X86=1)
@ -180,7 +180,9 @@ elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
# CRC instruction set is used in the CRC32 hash function
check_and_add_flag(HAVE_ARCH_ARMV8 -march=armv8-a+crc)
else()
message(FATAL_ERROR "You're building on an unsupported platform '${CMAKE_SYSTEM_PROCESSOR}'. Enable generic build if you really want a JIT-less binary.")
message(FATAL_ERROR "You're building on an unsupported platform: "
"'${CMAKE_SYSTEM_PROCESSOR}' with ${CMAKE_SIZEOF_VOID_P}-byte pointers."
" Enable generic build if you really want a JIT-less binary.")
endif()