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Support for libc variants without fseeko/ftello

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Some older Android libc implementations don't support `fseeko` or `ftello`.
This commit adds a new compile-time macro `LIBC_NO_FSEEKO` as well as a usage in CMake for old Android APIs.
This commit is contained in:
Victor Zhang
2025-01-02 14:02:10 -08:00
parent f5d9d57fe6
commit 54c3d998a0
4 changed files with 25 additions and 3 deletions
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5
contrib/seekable_format/zstdseek_decompress.c
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@ -77,7 +77,10 @@
/* ************************************************************
* Avoid fseek()'s 2GiB barrier with MSVC, macOS, *BSD, MinGW
***************************************************************/
#if defined(_MSC_VER) && _MSC_VER >= 1400
#if defined(LIBC_NO_FSEEKO)
/* Some older libc implementations don't include these functions (e.g. Bionic < 24) */
#define LONG_SEEK fseek
#elif defined(_MSC_VER) && _MSC_VER >= 1400
# define LONG_SEEK _fseeki64
#elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */
# define LONG_SEEK fseeko