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Preserve config.h timestamp when contents are unchanged #6140

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Preserve config.h timestamp when contents are unchanged #6140

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Preserve config.h timestamp when contents are unchanged
birolcapa Oct 20, 2026
da4704b
Update minimum required CMake version to 3.21.0
birolcapa Oct 21, 2026
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2 changes: 1 addition & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
## Author: Hank Anderson <hank@statease.com>
##

cmake_minimum_required(VERSION 3.16.0)
cmake_minimum_required(VERSION 3.21.0)

set (CMAKE_ASM_SOURCE_FILE_EXTENSIONS "S")
project(OpenBLAS C ASM)
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3 changes: 2 additions & 1 deletion cmake/prebuild.cmake
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Expand Up @@ -1605,7 +1605,8 @@ endif ()
"#define GEMM_MULTITHREAD_THRESHOLD\t${GEMM_MULTITHREAD_THRESHOLD}\n")
# Move to where gen_config_h would place it
file(MAKE_DIRECTORY ${TARGET_CONF_DIR})
file(RENAME ${TARGET_CONF_TEMP} "${TARGET_CONF_DIR}/${TARGET_CONF}")
file(COPY_FILE "${TARGET_CONF_TEMP}" "${TARGET_CONF_DIR}/${TARGET_CONF}" ONLY_IF_DIFFERENT)
file(REMOVE "${TARGET_CONF_TEMP}")

else(NOT CMAKE_CROSSCOMPILING)
# compile getarch
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