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df54c7fb02
Depending on the platform and on build options, we may or may not build libgit2 with support for nanoseconds when using `stat` calls. It's currently unclear though whether sub-second stat information is used at all. Add feature info for this to tell at configure time whether it's being used or not.
27 lines
921 B
CMake
27 lines
921 B
CMake
INCLUDE(FeatureSummary)
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CHECK_STRUCT_HAS_MEMBER ("struct stat" st_mtim "sys/types.h;sys/stat.h"
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HAVE_STRUCT_STAT_ST_MTIM LANGUAGE C)
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CHECK_STRUCT_HAS_MEMBER ("struct stat" st_mtimespec "sys/types.h;sys/stat.h"
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HAVE_STRUCT_STAT_ST_MTIMESPEC LANGUAGE C)
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CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtime_nsec sys/stat.h
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HAVE_STRUCT_STAT_MTIME_NSEC LANGUAGE C)
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IF (HAVE_STRUCT_STAT_ST_MTIM)
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CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec sys/stat.h
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HAVE_STRUCT_STAT_NSEC LANGUAGE C)
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ELSEIF (HAVE_STRUCT_STAT_ST_MTIMESPEC)
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CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec sys/stat.h
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HAVE_STRUCT_STAT_NSEC LANGUAGE C)
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ELSE ()
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SET( HAVE_STRUCT_STAT_NSEC ON )
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ENDIF()
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IF (HAVE_STRUCT_STAT_NSEC OR WIN32)
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OPTION( USE_NSEC "Care about sub-second file mtimes and ctimes" ON )
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ELSE()
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SET(USE_NSEC OFF)
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ENDIF()
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ADD_FEATURE_INFO(nanoseconds USE_NSEC "whether to use sub-second file mtimes and ctimes")
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