Mercurial > hg > octave-lojdl > gnulib-hg
changeset 3230:8623eb4e2c2a
Check for chsize.
Link with ftruncate.o unconditionally if ftruncate is missing.
This was required when cross-compiling to i586-mingw32msvc.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Sat, 21 Apr 2001 14:08:00 +0000 |
| parents | 047f148f6935 |
| children | c1bd3e02bb6f |
| files | m4/ftruncate.m4 |
| diffstat | 1 files changed, 5 insertions(+), 18 deletions(-) [+] |
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--- a/m4/ftruncate.m4 +++ b/m4/ftruncate.m4 @@ -1,27 +1,14 @@ -#serial 2 +#serial 3 -# See if we need to emulate a missing ftruncate function using fcntl. +# See if we need to emulate a missing ftruncate function using fcntl or chsize. AC_DEFUN(jm_FUNC_FTRUNCATE, [ AC_CHECK_FUNCS(ftruncate, , [ftruncate_missing=yes]) if test "$ftruncate_missing" = yes; then - AC_CHECK_HEADERS(unistd.h) - AC_MSG_CHECKING([fcntl emulation of ftruncate]) - AC_CACHE_VAL(fu_cv_sys_ftruncate_emulation, - [AC_TRY_LINK([ -#include <sys/types.h> -#include <fcntl.h>], [ -#if !defined(F_CHSIZE) && !defined(F_FREESP) - chsize(); -#endif - ], - fu_cv_sys_ftruncate_emulation=yes, - fu_cv_sys_ftruncate_emulation=no)]) - AC_MSG_RESULT($fu_cv_sys_ftruncate_emulation) - if test $fu_cv_sys_ftruncate_emulation = yes; then - AC_LIBOBJ(ftruncate) - fi + AC_CHECK_HEADERS([unistd.h]) + AC_CHECK_FUNCS([chsize]) + AC_LIBOBJ(ftruncate) fi ])