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| author | Jim Meyering <jim@meyering.net> | 2000-01-23 10:34:04 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 2000-01-23 10:34:04 +0000 |
| commit | aef5ff97f7b4212606124053c54dbc0c858fa0c5 (patch) | |
| tree | 67010a7f1282a133cdde1e8e26a98d1558445402 /m4 | |
| parent | 7d7c1047228f9f0db1c2395d5bcb3c1fd7737907 (diff) | |
| download | coreutils-aef5ff97f7b4212606124053c54dbc0c858fa0c5.tar.xz | |
*** empty log message ***
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ftruncate.m4 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/m4/ftruncate.m4 b/m4/ftruncate.m4 new file mode 100644 index 000000000..bcb4ba1ed --- /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 +]) |