Mercurial > hg > octave-lyh > gnulib-hg
changeset 2201:941d51aef6f1
*** empty log message ***
author | Jim Meyering <jim@meyering.net> |
---|---|
date | Sun, 23 Jan 2000 10:34:04 +0000 |
parents | fd4d430731d5 |
children | 5f28a99afb62 |
files | m4/ftruncate.m4 |
diffstat | 1 files changed, 27 insertions(+), 0 deletions(-) [+] |
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new file mode 100644 --- /dev/null +++ b/m4/ftruncate.m4 @@ -0,0 +1,27 @@ +#serial 1 + +# See if we need to emulate a missing ftruncate function using fcntl. + +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 $fu_cv_sys_ftruncate_emulation = yes; then + LIBOBJS="$LIBOBJS ftruncate.$ac_objext" + fi + fi +])