configure: replace buggy AX_RUBY_EXT by a proper implementation

[libsigrok.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 88424a8b6f956a4d9712a0a27a74ec4105d57e4d..c60e403d4438e32fd89b31bae80d38b99723bca2 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -403,10 +403,16 @@ AS_IF([test "x$BINDINGS_CXX" = xyes],
        [sr_ruby_missing=],
        [sr_ruby_missing='C++ bindings'])
 
-AX_RUBY_EXT
+AC_PATH_PROGS(RUBY, ["${RUBY-ruby}"], [])
+AS_IF([test "x$RUBY" != x],
+       AC_MSG_CHECKING([for Ruby version])
+    [RUBY_VERSION=`$RUBY -e 'puts RUBY_VERSION'`]
+    AC_MSG_RESULT([$RUBY_VERSION])
+    [RUBY_DLEXT=`$RUBY -rrbconfig -e 'puts RbConfig::CONFIG[["DLEXT"]]'`]
+    AC_SUBST(RUBY_DLEXT))
 
 AS_IF([test "x$RUBY" = x],
-       [SR_APPEND([sr_ruby_missing], [', '], ['Ruby'])])
+       [SR_APPEND([sr_ruby_missing], [', '], [Ruby])])
 
 # Extract major and minor version number of the Ruby interpreter.
 sr_rbmajor=${RUBY_VERSION%%.*}
@@ -430,7 +436,6 @@ AS_IF([test "x$SWIG" = x],
 AS_IF([test -z "$sr_ruby_missing"],
        [BINDINGS_RUBY=$enable_ruby], [BINDINGS_RUBY=no])
 AM_CONDITIONAL([BINDINGS_RUBY], [test "x$BINDINGS_RUBY" = xyes])
-# AC_SUBST(RUBY_EXT_DLEXT, $RUBY_EXT_DLEXT)
 
 ####################
 ##  Java bindings ##