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Diffstat (limited to 'U/d_vfork.U')
| -rw-r--r-- | U/d_vfork.U | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/U/d_vfork.U b/U/d_vfork.U new file mode 100644 index 0000000000..fb674340e2 --- /dev/null +++ b/U/d_vfork.U @@ -0,0 +1,56 @@ +?RCS: $Id: d_vfork.U,v 3.0.1.2 1993/10/16 13:49:39 ram Exp $ +?RCS: +?RCS: Copyright (c) 1991-1993, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic Licence, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic Licence; a copy of which may be found at the root +?RCS: of the source tree for dist 3.0. +?RCS: +?RCS: $Log: d_vfork.U,v $ +?RCS: Revision 3.0.1.2 1993/10/16 13:49:39 ram +?RCS: patch12: added magic for vfork() +?RCS: +?RCS: Revision 3.0.1.1 1993/09/13 16:06:57 ram +?RCS: patch10: removed automatic remapping of vfork on fork (WAD) +?RCS: patch10: added compatibility code for older config.sh (WAD) +?RCS: +?RCS: Revision 3.0 1993/08/18 12:07:55 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_vfork: Inlibc +?MAKE: -pick add $@ %< +?S:d_vfork: +?S: This variable conditionally defines the HAS_VFORK symbol, which +?S: indicates the vfork() routine is available. +?S:. +?C:HAS_VFORK (VFORK): +?C: This symbol, if defined, indicates that vfork() exists. +?C:. +?H:#$d_vfork HAS_VFORK /**/ +?H:. +?M:vfork: HAS_VFORK +?M:#ifndef HAS_VFORK +?M:#define vfork fork +?M:#endif +?M:. +?LINT:set d_vfork +: see if there is a vfork +set vfork d_vfork +eval $inlibc +: But do we want to use it. vfork is reportedly unreliable in +: perl in Solaris 2.x, and probably elsewhere. +case "$d_vfork" in +define) + dflt='n' + rp="Some systems have problems with vork. Do you want to use it?" + . ./myread + case "$ans" in + y|Y) ;; + *) echo "Ok, we won't use vfork." + d_vfork="$undef" + ;; + esac + ;; +esac |