nobu	2009-01-27 11:09:47 +0900 (Tue, 27 Jan 2009)

  New Revision: 21791

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=21791

  Log:
    * lib/mkmf.rb (try_header): checks the header depending on
      platform.
    * lib/mkmf.rb (have_header, find_header): use try_header.
    
    * win32/Makefile.sub (try_header): uses try_compile to get rid of
      slow -E option of VC.

  Modified files:
    trunk/ChangeLog
    trunk/lib/mkmf.rb
    trunk/win32/Makefile.sub

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 21790)
+++ ChangeLog	(revision 21791)
@@ -1,3 +1,13 @@
+Tue Jan 27 11:09:45 2009  Nobuyoshi Nakada  <nobu@r...>
+
+	* lib/mkmf.rb (try_header): checks the header depending on
+	  platform.
+
+	* lib/mkmf.rb (have_header, find_header): use try_header.
+
+	* win32/Makefile.sub (try_header): uses try_compile to get rid of
+	  slow -E option of VC.
+
 Tue Jan 27 11:03:52 2009  Nobuyoshi Nakada  <nobu@r...>
 
 	* common.mk (distclean-enc, realclean-enc): do not call clean of
Index: lib/mkmf.rb
===================================================================
--- lib/mkmf.rb	(revision 21790)
+++ lib/mkmf.rb	(revision 21791)
@@ -433,6 +433,10 @@
   rm_f "conftest*"
 end
 
+class Object
+  alias_method :try_header, (config_string('try_header') || :try_cpp)
+end
+
 def cpp_include(header)
   if header
     header = [header] unless header.kind_of? Array
@@ -806,7 +810,7 @@
 #
 def have_header(header, &b)
   checking_for header do
-    if try_cpp(cpp_include(header), &b)
+    if try_header(cpp_include(header), &b)
       $defs.push(format("-DHAVE_%s", header.tr("a-z./\055", "A-Z___")))
       true
     else
@@ -825,13 +829,13 @@
   message = checking_message(header, paths)
   header = cpp_include(header)
   checking_for message do
-    if try_cpp(header)
+    if try_header(header)
       true
     else
       found = false
       paths.each do |dir|
         opt = "-I#{dir}".quote
-        if try_cpp(header, opt)
+        if try_header(header, opt)
           $INCFLAGS << " " << opt
           found = true
           break
Index: win32/Makefile.sub
===================================================================
--- win32/Makefile.sub	(revision 21790)
+++ win32/Makefile.sub	(revision 21791)
@@ -654,6 +654,7 @@
 s,@configure_input@,$$configure_input,;t t
 s,@srcdir@,$(srcdir),;t t
 s,@top_srcdir@,$(srcdir),;t t
+s,@try_header@,try_compile,;t t
 <<KEEP
 
 miniruby: miniruby$(EXEEXT)

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