[PATCH] Pass GUILE down to subdirectories

[Tom Tromey <tom@tromey.com>]

When I enable cgen rebuilding in the binutils-gdb tree, the default is
to run cgen using 'guile'.  However, on my host, guile is guile 2.2,
which doesn't work for me -- I have to use guile3.0.

This patch arranges to pass "GUILE" down to subdirectories, so I can
use 'make GUILE=guile3.0'.

ChangeLog
2023-12-30  Tom Tromey  <tom@tromey.com>

	* Makefile.in: Rebuild.
	* Makefile.tpl (BASE_EXPORTS): Add GUILE.
	(GUILE): New variable.
	* Makefile.def (flags_to_pass): Add GUILE.
---
 ChangeLog    | 7 +++++++
 Makefile.def | 1 +
 Makefile.in  | 8 ++++++--
 Makefile.tpl | 7 +++++--
 4 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/Makefile.def b/Makefile.def
index 662e50fdc18..792919e561c 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -310,6 +310,7 @@ flags_to_pass = { flag= GNATBIND ; };
 flags_to_pass = { flag= GNATMAKE ; };
 flags_to_pass = { flag= GDC ; };
 flags_to_pass = { flag= GDCFLAGS ; };
+flags_to_pass = { flag= GUILE ; };
 
 // Target tools
 flags_to_pass = { flag= AR_FOR_TARGET ; };
diff --git a/Makefile.in b/Makefile.in
index 48320bb549e..9a58d5a4f20 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -3,7 +3,7 @@
 #
 # Makefile for directory with subdirs to build.
 #   Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-#   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+#   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2023
 #   Free Software Foundation
 #
 # This file is free software; you can redistribute it and/or modify
@@ -143,7 +143,8 @@ BASE_EXPORTS = \
 	M4="$(M4)"; export M4; \
 	SED="$(SED)"; export SED; \
 	AWK="$(AWK)"; export AWK; \
-	MAKEINFO="$(MAKEINFO)"; export MAKEINFO;
+	MAKEINFO="$(MAKEINFO)"; export MAKEINFO; \
+	GUILE="$(GUILE)"; export GUILE;
 
 # This is the list of variables to export in the environment when
 # configuring subdirectories for the build system.
@@ -450,6 +451,8 @@ GM2FLAGS = $(CFLAGS)
 
 PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
 
+GUILE = guile
+
 # Pass additional PGO and LTO compiler options to the PGO build.
 BUILD_CFLAGS = $(PGO_BUILD_CFLAGS) $(PGO_BUILD_LTO_CFLAGS)
 override CFLAGS += $(BUILD_CFLAGS)
@@ -878,6 +881,7 @@ BASE_FLAGS_TO_PASS = \
 	"GNATMAKE=$(GNATMAKE)" \
 	"GDC=$(GDC)" \
 	"GDCFLAGS=$(GDCFLAGS)" \
+	"GUILE=$(GUILE)" \
 	"AR_FOR_TARGET=$(AR_FOR_TARGET)" \
 	"AS_FOR_TARGET=$(AS_FOR_TARGET)" \
 	"CC_FOR_TARGET=$(CC_FOR_TARGET)" \
diff --git a/Makefile.tpl b/Makefile.tpl
index 36fa20950d4..17e585df541 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -6,7 +6,7 @@ in
 #
 # Makefile for directory with subdirs to build.
 #   Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-#   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+#   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2023
 #   Free Software Foundation
 #
 # This file is free software; you can redistribute it and/or modify
@@ -146,7 +146,8 @@ BASE_EXPORTS = \
 	M4="$(M4)"; export M4; \
 	SED="$(SED)"; export SED; \
 	AWK="$(AWK)"; export AWK; \
-	MAKEINFO="$(MAKEINFO)"; export MAKEINFO;
+	MAKEINFO="$(MAKEINFO)"; export MAKEINFO; \
+	GUILE="$(GUILE)"; export GUILE;
 
 # This is the list of variables to export in the environment when
 # configuring subdirectories for the build system.
@@ -453,6 +454,8 @@ GM2FLAGS = $(CFLAGS)
 
 PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
 
+GUILE = guile
+
 # Pass additional PGO and LTO compiler options to the PGO build.
 BUILD_CFLAGS = $(PGO_BUILD_CFLAGS) $(PGO_BUILD_LTO_CFLAGS)
 override CFLAGS += $(BUILD_CFLAGS)
-- 
2.43.0