cmake : avoid -march=native when reproducible build is wanted (#11366)
See https://reproducible-builds.org/ for why this is good and https://reproducible-builds.org/specs/source-date-epoch/ for the definition of this variable. Without this patch, compiling on different machines produced different binaries, which made verification of results difficult. Fixes: #11317 This patch was done while working on reproducible builds for openSUSE.
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@ -58,7 +58,8 @@ else()
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set(GGML_BLAS_VENDOR_DEFAULT "Generic")
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endif()
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if (CMAKE_CROSSCOMPILING)
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if (CMAKE_CROSSCOMPILING OR DEFINED ENV{SOURCE_DATE_EPOCH})
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message(STATUS "Setting GGML_NATIVE_DEFAULT to OFF")
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set(GGML_NATIVE_DEFAULT OFF)
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else()
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set(GGML_NATIVE_DEFAULT ON)
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