[linux] Fix compiler in native ARM host builds (#38113)

#35084 introduced a regression for native ARM Linux builds where the
toolchain would mistakenly try to reference a cross-compiler (e.g.
`aarch64-linux-gnu-gcc`) despite building natively because vcpkg spells
the architecture differently from what the system reports (`arm64` vs.
`aarch64`).

This fixes the issue by checking whether the
`CMAKE_HOST_SYSTEM_PROCESSOR` matches the target (in CMake's spelling of
the architecture).

---------

Co-authored-by: Kai Pastor <dg0yt@darc.de>
This commit is contained in:
fwcd 2024-04-19 21:11:15 +02:00 committed by GitHub
parent f551e4b52a
commit 3f55ea9fce
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@ -13,7 +13,8 @@ elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "x86")
string(APPEND VCPKG_LINKER_FLAGS " -m32")
elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "arm")
set(CMAKE_SYSTEM_PROCESSOR armv7l CACHE STRING "")
if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux")
if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux" AND NOT CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "armv7l")
if(NOT DEFINED CMAKE_CXX_COMPILER)
set(CMAKE_CXX_COMPILER "arm-linux-gnueabihf-g++")
endif()
@ -30,7 +31,8 @@ elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "arm")
endif()
elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "arm64")
set(CMAKE_SYSTEM_PROCESSOR aarch64 CACHE STRING "")
if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux")
if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux" AND NOT CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "aarch64")
if(NOT DEFINED CMAKE_CXX_COMPILER)
set(CMAKE_CXX_COMPILER "aarch64-linux-gnu-g++")
endif()