nobu	2010-11-12 01:36:04 +0900 (Fri, 12 Nov 2010)

  New Revision: 29766

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=29766

  Log:
    * configure.in (DOT, DOXYGEN, PKG_CONFIG): tools running on build
      platform, no tool prefix.

  Modified files:
    trunk/configure.in

Index: configure.in
===================================================================
--- configure.in	(revision 29765)
+++ configure.in	(revision 29766)
@@ -356,13 +356,11 @@
 MAKEDIRS="$MKDIR_P"
 AC_SUBST(MAKEDIRS)
 
-AC_CHECK_TOOL(DOT, dot)
-AC_CHECK_TOOL(DOXYGEN, doxygen)
+AC_CHECK_PROG(DOT, dot)
+AC_CHECK_PROG(DOXYGEN, doxygen)
 
-AC_CHECK_TOOL(PKG_CONFIG, pkg-config)
-if test -n "$PKG_CONFIG"; then
-    $PKG_CONFIG --print-errors --version > /dev/null 2>&1 || PKG_CONFIG=
-fi
+AC_CHECK_PROG(PKG_CONFIG, pkg-config, [], [], [],
+    [`$as_dir/$ac_word$ac_exec_ext --print-errors --version > /dev/null 2>&1 || continue`])
 
 # checks for UNIX variants that set C preprocessor variables
 AC_USE_SYSTEM_EXTENSIONS

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