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Re: 64 bit LFS compile error

"Leslie Rhorer" <lrhorer@satx.rr.com> writes:

> I downloaded an application (mfs-tools) which I am trying to compile on my
> Debian "Lenny" system, but the make is failing with the following errors:
> gcc -DHAVE_CONFIG_H -I. -I../include -I../include    -g -O2 -MT
> readwrite.o -MD -MP -MF .deps/readwrite.Tpo -c -o readwrite.o readwrite.c
> readwrite.c: In function 'tivo_partition_read':
> readwrite.c:146: error: 'off64_t' undeclared (first use in this function)
> readwrite.c:146: error: (Each undeclared identifier is reported only once
> readwrite.c:146: error: for each function it appears in.)
> readwrite.c:146: error: expected ')' before 'sector'
> readwrite.c:146: error: expected ')' before 'sector'
> readwrite.c: In function 'tivo_partition_write':
> readwrite.c:261: error: 'off64_t' undeclared (first use in this function)
> readwrite.c:261: error: expected ')' before 'sector'
> readwrite.c:261: error: expected ')' before 'sector'
> make[1]: *** [readwrite.o] Error 1
> make[1]: Leaving directory `/downloads/software/mfstools-src/lib'
> make: *** [all-recursive] Error 1
> I've searched for the error, and I found some background information, but no
> clear suggestions on how to resolve the issue.  I submitted the issue to
> some Usenet groups, and one of the respondents suggested I report the issue
> here.  Clearly, the off64_t type is not defined in any of the headers.  I
> have glibc-source installed, and it looks to me like the type may be
> defined there, but the make is not seeing it.

On amd64 off_t and all the others are naturally 64bit. And for 32bit
code you should rather enable LFS so off_t is 64bit instead of using
off64_t (adding -D_FILE_OFFSET_BITS=64).


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