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LibC: Make <limits.h> compatible with GCC so that it doesn't install a fixed header
GCC installs a fixed version of the <limits.h> header as per https://gcc.gnu.org/onlinedocs/gcc/Fixed-Headers.html. The fixed header doesn't include the target's <limits.h> which in turn means that some definitions (such as PATH_MAX) aren't available. This change requires rebuilding the toolchain (Toolchain/BuildIt.sh). This fixes the flatbuffers port. The commit also removes some non-standard defines (U*_MIN) which don't appear to be used anywhere. By definition they're always 0 though so they're not strictly necessary.
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2 changed files with 24 additions and 2 deletions
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@ -74,7 +74,6 @@ typedef __INTPTR_TYPE__ intptr_t;
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typedef __UINTMAX_TYPE__ uintmax_t;
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#define UINTMAX_MAX __UINTMAX_MAX__
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#define UINTMAX_MIN __UINTMAX_MIN__
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typedef __INTMAX_TYPE__ intmax_t;
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#define INTMAX_MAX __INTMAX_MAX__
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@ -47,13 +47,17 @@
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#define INT_MIN INT32_MIN
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#define UINT_MAX UINT32_MAX
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#define UINT_MIN UINT32_MIN
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#define CHAR_BIT 8
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#define SCHAR_MIN (-128)
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#define SCHAR_MAX 127
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#define UCHAR_MAX 255
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#define SHRT_MAX 32768
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#define SHRT_MIN (-SHRT_MAX - 1)
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#define USHRT_MAX 65535
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#define LONG_MAX 2147483647L
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#define LONG_MIN (-LONG_MAX - 1L)
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@ -62,11 +66,30 @@
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#define LONG_LONG_MAX 9223372036854775807LL
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#define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
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#define LLONG_MAX LONG_LONG_MAX
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#define LLONG_MIN LONG_LONG_MIN
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#define ULONG_LONG_MAX 18446744073709551615ULL
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#define CHAR_MIN SCHAR_MIN
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#define CHAR_MAX SCHAR_MAX
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#define CHAR_WIDTH 8
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#define SCHAR_WIDTH 8
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#define UCHAR_WIDTH 8
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#define SHRT_WIDTH 16
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#define USHRT_WIDTH 16
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#define INT_WIDTH 32
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#define UINT_WIDTH 32
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#define LONG_WIDTH 32
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#define ULONG_WIDTH 32
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#define LLONG_WIDTH 64
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#define ULLONG_WIDTH 64
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#define MB_LEN_MAX 16
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#define ARG_MAX 65536
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