Mercurial > hg > octave-lyh > gnulib-hg
changeset 2817:00319a3d4087
(jm_FUNC_UNLINK_BUSY_TEXT): New file/macro.
From J. David Anglin.
author | Jim Meyering <jim@meyering.net> |
---|---|
date | Sat, 12 Aug 2000 04:57:18 +0000 |
parents | bd9c110a1342 |
children | 97693c68566b |
files | m4/unlink-busy.m4 |
diffstat | 1 files changed, 32 insertions(+), 0 deletions(-) [+] |
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new file mode 100644 --- /dev/null +++ b/m4/unlink-busy.m4 @@ -0,0 +1,32 @@ +#serial 4 + +dnl From J. David Anglin. + +dnl HPUX and other systems can't unlink shared text that is being executed. + +AC_DEFUN(jm_FUNC_UNLINK_BUSY_TEXT, +[dnl + AC_CACHE_CHECK([whether a program can unlink itself], + jm_cv_func_unlink_busy_text, + [ + AC_TRY_RUN([ + main (argc, argv) + int argc; + char **argv; + { + if (!argc) + exit (-1); + exit (unlink (argv[0])); + } + ], + jm_cv_func_unlink_busy_text=yes, + jm_cv_func_unlink_busy_text=no, + jm_cv_func_unlink_busy_text=no + ) + ] + ) + + if test $jm_cv_func_unlink_busy_text = no; then + INSTALL=$ac_install_sh + fi +])