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From 996012f6abe0ce4d68a2de9f249935c6d5b467bc Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?V=C3=ADt=20Ondruch?= <vondruch@redhat.com>
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Date: Fri, 4 Oct 2013 22:13:11 +0200
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Subject: [PATCH] Allow to specify addition preludes by configuration option.
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---
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 Makefile.in  | 2 ++
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 common.mk    | 2 +-
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 configure.ac | 7 +++++++
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 3 files changed, 10 insertions(+), 1 deletion(-)
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diff --git a/Makefile.in b/Makefile.in
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index 7e8ed82..7916993 100644
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -119,6 +119,8 @@ XRUBY_RUBYLIBDIR = @XRUBY_RUBYLIBDIR@
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 XRUBY_RUBYHDRDIR = @XRUBY_RUBYHDRDIR@
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 BOOTSTRAPRUBY = @BOOTSTRAPRUBY@
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+OPTIONAL_PRELUDES = @OPTIONAL_PRELUDES@
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+
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 #### End of system configuration section. ####
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 MAJOR=	@MAJOR@
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diff --git a/common.mk b/common.mk
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index 5cfbc3d..3f0a82e 100644
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--- a/common.mk
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+++ b/common.mk
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@@ -147,7 +147,7 @@ ALLOBJS       = $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(INITOBJS)
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 GOLFOBJS      = goruby.$(OBJEXT) golf_prelude.$(OBJEXT)
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 DEFAULT_PRELUDES = $(GEM_PRELUDE)
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-PRELUDE_SCRIPTS = $(srcdir)/prelude.rb $(DEFAULT_PRELUDES)
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+PRELUDE_SCRIPTS = $(srcdir)/prelude.rb $(DEFAULT_PRELUDES) $(OPTIONAL_PRELUDES)
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 GEM_PRELUDE   = $(srcdir)/gem_prelude.rb
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 PRELUDES      = {$(srcdir)}prelude.c {$(srcdir)}miniprelude.c
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 GOLFPRELUDES  = {$(srcdir)}golf_prelude.c
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diff --git a/configure.ac b/configure.ac
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index 028ef7ca3e..cdeff87871 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -4396,6 +4396,13 @@ AC_SUBST(rubyarchhdrdir)dnl
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 AC_SUBST(sitearchhdrdir)dnl
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 AC_SUBST(vendorarchhdrdir)dnl
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+AC_ARG_WITH(prelude,
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+		AS_HELP_STRING([--with-prelude=FILE-LIST], [specify additional preludes separated by space]),
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+		[prelude=$withval])
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+if test "$prelude" != ""; then
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+    AC_SUBST(OPTIONAL_PRELUDES, $prelude)
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+fi
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+
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 AC_ARG_WITH(mantype,
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 	AS_HELP_STRING([--with-mantype=TYPE], [specify man page type; TYPE is one of man and doc]),
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 		[
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-- 
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1.8.3.1
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