use newly acquired 'AX_COMPARE_VERSION' to simplify some version checks

diff --git a/configure.ac b/configure.ac
index 77ba70a23679e282de4e0a2ee97ddaa77801d4e5..e703cd7bb9eed6af9c7381f1d7055f092e1a02b6 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -540,24 +540,12 @@ else
   else
     SWIG_VERSION=`$SWIG -version 2>&1 | $EGREP Version | cut -d ' ' -f 3`
     AC_SUBST([SWIG_VERSION])
-    SWIG_VERSION_MAJOR=`echo $SWIG_VERSION | cut -d '.' -f 1`
-    SWIG_VERSION_MINOR=`echo $SWIG_VERSION | cut -d '.' -f 2`
-    SWIG_VERSION_MICRO=`echo $SWIG_VERSION | cut -d '.' -f 3`
-    if test $SWIG_VERSION_MAJOR -lt 2; then
-      if test $SWIG_VERSION_MAJOR -lt 1; then
-        SWIG=
-      else
-        if test $SWIG_VERSION_MINOR -lt 3; then
-          SWIG=
-        else
-          # EL5 has swig-1.3.29 which does not define SWIGJAVA
-          if test $SWIG_VERSION_MICRO -lt 40; then
-            SWIGJAVA_CPPFLAGS=-DSWIGJAVA
-            AC_SUBST([SWIGJAVA_CPPFLAGS])
-          fi
-        fi
-      fi
-    fi
+    AX_COMPARE_VERSION([$SWIG_VERSION], [lt], [1.3.0], [SWIG=])
+    AX_COMPARE_VERSION([$SWIG_VERSION], [lt], [1.3.40], [
+      # EL5 has swig-1.3.29 which does not define SWIGJAVA
+      SWIGJAVA_CPPFLAGS=-DSWIGJAVA
+      AC_SUBST([SWIGJAVA_CPPFLAGS])
+    ])
     AX_COMPARE_VERSION([$SWIG_VERSION], [lt], [4.1.0], [
       SWIG_PHP_DATA=gv.php
     ], [
@@ -700,15 +688,8 @@ else
         GUILE_VERSION_MAJOR=`echo $GUILE_VERSION | cut -d '.' -f 1`
         GUILE_VERSION_MINOR=`echo $GUILE_VERSION | cut -d '.' -f 2`
         AC_CHECK_PROGS(GUILE,guile$GUILE_VERSION_MAJOR.$GUILE_VERSION_MINOR guile$GUILE_VERSION_MAJOR guile)
-        if test 0$GUILE_VERSION_MAJOR -lt 2; then
-          if test 0$GUILE_VERSION_MAJOR -lt 1; then
-            GUILE_CONFIG=
-          else
-            if test 0$GUILE_VERSION_MINOR -lt 4; then
-             GUILE_CONFIG=
-            fi
-          fi
-        fi
+        AX_COMPARE_VERSION([0$GUILE_VERSION_MAJOR.0$GUILE_VERSION_MINOR], [lt],
+                           [1.4], [GUILE_CONFIG=])
         if test "x$GUILE_CONFIG" = "x"; then
          use_guile="No (guile is too old)"
         else
@@ -1187,10 +1168,7 @@ else
         if test "x$PYTHON_VERSION" = "x"; then
           PYTHON=
         else
-          PYTHON_VERSION_MAJOR=`echo $PYTHON_VERSION | cut -d '.' -f 1`
-          if test $PYTHON_VERSION_MAJOR -lt 3; then
-            PYTHON=
-          fi
+          AX_COMPARE_VERSION([$PYTHON_VERSION], [lt], [3], [PYTHON=])
         fi
       fi
       if test "x$PYTHON" = "x"; then
@@ -2192,29 +2170,11 @@ if test "x$use_gd" = "x"; then
          GD_FEATURES=`$GDLIB_CONFIG --features`
 
          # GD version check >= 2.0.33  -- centos-5.8 has gd-2.0.33
-         GDLIB_VERSION_MAJOR=`echo $GDLIB_VERSION | cut -d '.' -f 1`
-         GDLIB_VERSION_MINOR=`echo $GDLIB_VERSION | cut -d '.' -f 2`
-         GDLIB_VERSION_MICRO=`echo $GDLIB_VERSION | cut -d '.' -f 3`
-         REQ_GDLIB_VERSION_MAJOR=2
-         REQ_GDLIB_VERSION_MINOR=0
-         REQ_GDLIB_VERSION_MICRO=33
-         if test $GDLIB_VERSION_MAJOR -lt $REQ_GDLIB_VERSION_MAJOR; then
-            use_gd="No (major version too old)"
-         else
-            if test $GDLIB_VERSION_MAJOR -eq $REQ_GDLIB_VERSION_MAJOR; then
-              if test $GDLIB_VERSION_MINOR -lt $REQ_GDLIB_VERSION_MINOR; then
-                 use_gd="No (minor version too old)"
-              else
-                 if test $GDLIB_VERSION_MINOR -eq $REQ_GDLIB_VERSION_MINOR; then
-                           if test $GDLIB_VERSION_MICRO -lt $REQ_GDLIB_VERSION_MICRO; then
-                       use_gd="No (revision too old)"
-                           fi
-                    fi
-                 fi
-           fi
-        fi
+         AX_COMPARE_VERSION([$GDLIB_VERSION], [lt], [2.0.33], [
+           use_gd="No (version too old)"
+         ])
         if test "x$use_gd" != "x"; then
-            AC_MSG_WARN(GD library version $GDLIB_VERSION_MAJOR.$GDLIB_VERSION_MINOR.$GDLIB_VERSION_MICRO < $REQ_GDLIB_VERSION_MAJOR.$REQ_GDLIB_VERSION_MINOR.$REQ_GDLIB_VERSION_MICRO)
+            AC_MSG_WARN(GD library version $GDLIB_VERSION < 2.0.33)
         fi
      else
         AC_MSG_WARN(GD neither gdlib pkgconfig nor gdlib-config was found)