41 lines
1001 B
Plaintext
41 lines
1001 B
Plaintext
/*
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* and its toplevel COPYING file starts with:
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*
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* GROMACS is free software, distributed under the GNU General Public License
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* (GPL) Version 2.
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*/
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#cmakedefine _LARGEFILE_SOURCE
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#cmakedefine _LARGEFILE64_SOURCE
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#cmakedefine _LARGE_FILES
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#cmakedefine _FILE_OFFSET_BITS @_FILE_OFFSET_BITS@
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/* detect failure even with -Wno-error on command line */
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#pragma GCC diagnostic error "-Werror"
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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int main(int argc, char **argv)
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{
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/* Cause a compile-time error if off_t is smaller than 64 bits,
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* and make sure we have ftello / fseeko.
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*/
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#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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int off_t_is_large[ (LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1 ];
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/* silence unused warnings */
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FILE *fp;
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off_t offset;
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(void)off_t_is_large;
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(void)argc;
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(void)argv;
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fp = fopen(argv[0],"r");
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offset = ftello( fp );
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fseeko( fp, offset, SEEK_CUR );
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fclose(fp);
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return 0;
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}
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