[PATCH 1/2] erofs-utils: Drop configure checks for unused functions

[Gao Xiang]

Hi James,

On 2026/1/2 23:38, James Le Cuirot wrote:
> Signed-off-by: James Le Cuirot <chewi at gentoo.org>

I will apply this patch, but Cc the erofs mailing list as well.

Thanks,
Gao Xiang

> ---
>   configure.ac | 25 -------------------------
>   1 file changed, 25 deletions(-)
> 
> diff --git a/configure.ac b/configure.ac
> index 2d42b1f..4d34e1f 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -233,29 +233,6 @@ AC_CHECK_MEMBERS([struct stat.st_atim])
>   AC_CHECK_MEMBERS([struct stat.st_atimensec])
>   AC_TYPE_UINT64_T
>   
> -#
> -# Check to see if llseek() is declared in unistd.h.  On some libc's
> -# it is, and on others it isn't..... Thank you glibc developers....
> -#
> -AC_CHECK_DECL(llseek,
> -  [AC_DEFINE(HAVE_LLSEEK_PROTOTYPE, 1,
> -    [Define to 1 if llseek declared in unistd.h])],,
> -  [#include <unistd.h>])
> -
> -#
> -# Check to see if lseek64() is declared in unistd.h.  Glibc's header files
> -# are so convoluted that I can't tell whether it will always be defined,
> -# and if it isn't defined while lseek64 is defined in the library,
> -# disaster will strike.
> -#
> -# Warning!  Use of --enable-gcc-wall may throw off this test.
> -#
> -AC_CHECK_DECL(lseek64,[AC_DEFINE(HAVE_LSEEK64_PROTOTYPE, 1,
> -  [Define to 1 if lseek64 declared in unistd.h])],,
> -  [#define _LARGEFILE_SOURCE
> -   #define _LARGEFILE64_SOURCE
> -   #include <unistd.h>])
> -
>   AC_CHECK_DECL(memrchr,[AC_DEFINE(HAVE_MEMRCHR, 1,
>     [Define to 1 if memrchr declared in string.h])],,
>     [#define _GNU_SOURCE
> @@ -274,8 +251,6 @@ AC_CHECK_FUNCS(m4_flatten([
>   	lsetxattr
>   	memset
>   	realpath
> -	lseek64
> -	ftello64
>   	pread64
>   	pwrite64
>   	pwritev