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CMakeLists.txt: Make D3_ARCH/dumpmachine output prettier

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the newline in ${cc_dumpmachine_out} was a bit ugly
This commit is contained in:
Daniel Gibson 2021-10-12 19:59:40 +02:00
parent ad327d34d1
commit 0958d8464a
1 changed files with 3 additions and 2 deletions
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5
neo/CMakeLists.txt
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@ -95,12 +95,13 @@ else() # not MSVC and not cross-compiling, assume GCC or clang (-compatible), se
RESULT_VARIABLE cc_dumpmachine_res
OUTPUT_VARIABLE cc_dumpmachine_out)
if(cc_dumpmachine_res EQUAL 0)
message(STATUS "${CMAKE_C_COMPILER} -dumpmachine says ${cc_dumpmachine_out}")
string(STRIP ${cc_dumpmachine_out} cc_dumpmachine_out) # get rid of trailing newline
message(STATUS "`${CMAKE_C_COMPILER} -dumpmachine` says: \"${cc_dumpmachine_out}\"")
# gcc -dumpmachine and clang -dumpmachine seem to print something like "x86_64-linux-gnu" (gcc)
# or "x64_64-pc-linux-gnu" (clang) or "i686-w64-mingw32" (32bit mingw-w64) i.e. starting with the CPU,
# then "-" and then OS or whatever - so use everything up to first "-"
string(REGEX MATCH "^[^-]+" cpu ${cc_dumpmachine_out})
message(STATUS " => CPU extracted from that: ${cpu}")
message(STATUS " => CPU architecture extracted from that: \"${cpu}\"")
else()
message(WARNING "${CMAKE_C_COMPILER} -dumpmachine failed with error (code) ${cc_dumpmachine_res}")
message(WARNING "will use the (sometimes incorrect) CMAKE_SYSTEM_PROCESSOR (${cpu}) to determine D3_ARCH")