From f2782f0a68bf9883160a96300cca9edeb5bb0687 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Wed, 29 Sep 2004 22:10:44 +0000
Subject: [PATCH] New modules 'alloca-opt'.

---
 ChangeLog          |  8 ++++++++
 MODULES.html.sh    |  1 +
 modules/alloca-opt | 34 ++++++++++++++++++++++++++++++++++
 modules/allocsa    |  2 +-
 modules/setenv     |  2 +-
 modules/vasnprintf |  2 +-
 6 files changed, 46 insertions(+), 3 deletions(-)
 create mode 100644 modules/alloca-opt

diff --git a/ChangeLog b/ChangeLog
index cce3fc0ea1..afaca23a6f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2004-09-29  Bruno Haible  <bruno@clisp.org>
+
+	* modules/alloca-opt: New file, derived from modules/alloca.
+	* modules/allocsa: Depend on alloca-opt instead of alloca.
+	* modules/setenv: Likewise.
+	* modules/vasnprintf: Likewise.
+	* MODULES.html.sh: Add alloca-opt.
+
 2004-09-28  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* modules/dummy: Change license to LGPL.
diff --git a/MODULES.html.sh b/MODULES.html.sh
index f3d763adf5..d03092a597 100755
--- a/MODULES.html.sh
+++ b/MODULES.html.sh
@@ -1464,6 +1464,7 @@ func_all_modules ()
   func_module xalloc
   func_module xalloc-die
   func_module alloca
+  func_module alloca-opt
   func_module allocsa
   func_module xallocsa
   func_end_table
diff --git a/modules/alloca-opt b/modules/alloca-opt
new file mode 100644
index 0000000000..efef0a6f0a
--- /dev/null
+++ b/modules/alloca-opt
@@ -0,0 +1,34 @@
+Description:
+Memory allocation on the stack, as an optional optimization.
+It allows using the alloca() macro if and only if the autoconf tests define
+HAVE_ALLOCA.
+
+Files:
+lib/alloca_.h
+m4/alloca.m4
+
+Depends-on:
+
+configure.ac:
+gl_FUNC_ALLOCA
+
+Makefile.am:
+BUILT_SOURCES += $(ALLOCA_H)
+EXTRA_DIST += alloca_.h
+
+# We need the following in order to create an <alloca.h> when the system
+# doesn't have one that works with the given compiler.
+all-local $(lib_OBJECTS): $(ALLOCA_H)
+alloca.h: alloca_.h
+	cp $(srcdir)/alloca_.h $@-t
+	mv $@-t $@
+MOSTLYCLEANFILES += alloca.h alloca.h-t
+
+Include:
+#include <alloca.h>
+
+License:
+LGPL
+
+Maintainer:
+bug-gnulib@gnu.org
diff --git a/modules/allocsa b/modules/allocsa
index db4920dc1f..55fdbb7ed7 100644
--- a/modules/allocsa
+++ b/modules/allocsa
@@ -10,7 +10,7 @@ m4/longlong.m4
 m4/longdouble.m4
 
 Depends-on:
-alloca
+alloca-opt
 
 configure.ac:
 gl_ALLOCSA
diff --git a/modules/setenv b/modules/setenv
index bcb2edf869..22db8d4efb 100644
--- a/modules/setenv
+++ b/modules/setenv
@@ -10,7 +10,7 @@ m4/setenv.m4
 
 Depends-on:
 allocsa
-alloca
+alloca-opt
 
 configure.ac:
 gt_FUNC_SETENV
diff --git a/modules/vasnprintf b/modules/vasnprintf
index 003626407f..6d21bed39f 100644
--- a/modules/vasnprintf
+++ b/modules/vasnprintf
@@ -21,7 +21,7 @@ m4/eoverflow.m4
 m4/vasnprintf.m4
 
 Depends-on:
-alloca
+alloca-opt
 xsize
 
 configure.ac:
-- 
2.30.2