nobu	2013-03-22 16:57:09 +0900 (Fri, 22 Mar 2013)

  New Revision: 39873

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=39873

  Log:
    compiler version
    
    * common.mk (showflags): show the compiler version.
    
    * configure.in (CC_VERSION): compiler with version option.

  Modified files:
    trunk/Makefile.in
    trunk/common.mk
    trunk/configure.in

Index: configure.in
===================================================================
--- configure.in	(revision 39872)
+++ configure.in	(revision 39873)
@@ -422,6 +422,13 @@ RUBY_CPPOUTFILE https://github.com/ruby/ruby/blob/trunk/configure.in#L422
 AC_SUBST(OUTFLAG)
 AC_SUBST(COUTFLAG)
 
+cc_version_option=
+for option in --version -v -V -qversion; do
+    $CC $option > /dev/null 2>&1 || continue
+    cc_version='$(CC) '$option
+done
+AC_SUBST(CC_VERSION, $cc_version)
+
 RUBY_UNIVERSAL_ARCH
 if test "$target_cpu" != "$host_cpu" -a "$GCC" = yes -a "$cross_compiling" = no -a "$universal_binary" = no; then
     RUBY_DEFAULT_ARCH("$target_cpu")
Index: common.mk
===================================================================
--- common.mk	(revision 39872)
+++ common.mk	(revision 39873)
@@ -159,6 +159,7 @@ showflags: https://github.com/ruby/ruby/blob/trunk/common.mk#L159
 	"	DLDFLAGS = $(DLDFLAGS)" \
 	"	SOLIBS = $(SOLIBS)" \
 	$(MESSAGE_END)
+	-@$(CC_VERSION)
 
 .PHONY: showconfig
 showconfig:
Index: Makefile.in
===================================================================
--- Makefile.in	(revision 39872)
+++ Makefile.in	(revision 39873)
@@ -53,6 +53,7 @@ arch_hdrdir = $(EXTOUT)/include/$(arch) https://github.com/ruby/ruby/blob/trunk/Makefile.in#L53
 VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(srcdir):$(srcdir)/enc:$(srcdir)/missing
 
 empty =
+CC_VERSION = @CC_VERSION@
 OUTFLAG = @OUTFLAG@$(empty)
 COUTFLAG = @COUTFLAG@$(empty)
 ARCH_FLAG = @ARCH_FLAG@

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