Mercurial > mm7
comparison lib/swig/swigwin-2.0.11/Tools/config/ac_compare_version.m4 @ 1899:b3009adc0e2f
Adding swig, gitignore, hgignore
| author | Nomad |
|---|---|
| date | Mon, 21 Oct 2013 10:42:27 +0200 |
| parents | |
| children |
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| 1867:eb580660bbbb | 1899:b3009adc0e2f |
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| 1 dnl @synopsis AC_COMPARE_VERSION\ | |
| 2 dnl (version-a, version-b, action-if-greater, action-if-equal, action-if-less) | |
| 3 dnl | |
| 4 dnl This macro compares two version numbers and executes the indicated action | |
| 5 dnl based on whether they're equal or one is greater than the other. | |
| 6 dnl It's needed to determine whether ocaml is new enough that the incompatible | |
| 7 dnl change 'loc' -> '_loc' is present in this version of camlp4. | |
| 8 dnl | |
| 9 dnl It's implemented from scratch just for SWIG by arty. | |
| 10 dnl | |
| 11 dnl @category Misc | |
| 12 dnl @author arty | |
| 13 dnl @version 2006-11-02 | |
| 14 dnl @license GPLWithACException | |
| 15 | |
| 16 AC_DEFUN([AC_COMPARE_VERSION], [ | |
| 17 # Split the version into units. | |
| 18 ver_a="[$1]" | |
| 19 ver_b="[$2]" | |
| 20 nodots_a=`echo $ver_a | sed -e 's/\./ /g'` | |
| 21 condition="equal" | |
| 22 isolate_b_regex='\([[0-9]]\+\).*' | |
| 23 for ver_part in $nodots_a ; do | |
| 24 b_ver_part=`echo "$ver_b" | sed -e 's/'"$isolate_b_regex"'/\1/'` | |
| 25 if test \( "$ver_part" -lt "$b_ver_part" \) -a \( "x$condition" = "xequal" \) ; then | |
| 26 condition=less | |
| 27 elif test \( "$ver_part" -gt "$b_ver_part" \) -a \( "x$condition" = "xequal" \) ; then | |
| 28 condition=greater | |
| 29 fi | |
| 30 isolate_b_regex='[[0-9]]\+\.'"$isolate_b_regex" | |
| 31 done | |
| 32 | |
| 33 if test "x$condition" = "xequal" ; then | |
| 34 [$4] | |
| 35 elif test "x$condition" = "xless" ; then | |
| 36 [$3] | |
| 37 elif test "x$condition" = "xgreater" ; then | |
| 38 [$5] | |
| 39 fi | |
| 40 ]) |