| Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame^] | 1 | dnl AX_COPY_IF_CHANGE(source, dest) |
| 2 | dnl copy source to dest if they don't compare equally or if dest doesn't exist | ||||
| 3 | AC_DEFUN([AX_COPY_IF_CHANGE], [ | ||||
| 4 | if test -r $2; then | ||||
| 5 | if cmp $1 $2 > /dev/null; then | ||||
| 6 | echo $2 is unchanged | ||||
| 7 | else | ||||
| 8 | cp -f $1 $2 | ||||
| 9 | fi | ||||
| 10 | else | ||||
| 11 | cp -f $1 $2 | ||||
| 12 | fi | ||||
| 13 | ]) | ||||