# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
#
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-# 2006, 2007, 2008 Free Software Foundation, Inc.
+# 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
# Written by Gordon Matzigkeit, 1996
#
# This file is free software; the Free Software Foundation gives
# _LT_SETUP
+# _LT_PREPARE_SED_QUOTE_VARS
+# --------------------------
+# Define a few sed substitution that help us do robust quoting.
+
+
# _LT_PROG_LTMAIN
# ---------------
# Note that this code is called both from `configure', and `config.status'
# embedded single quotes properly. In configure, this macro expands
# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
#
-# <var>='`$ECHO "X$<var>" | $Xsed -e "$delay_single_quote_subst"`'
+# <var>='`$ECHO "$<var>" | $SED "$delay_single_quote_subst"`'
# Initialize.
+# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
+# ------------------------------------
+# Generate a child script FILE with all initialization necessary to
+# reuse the environment learned by the parent script, and make the
+# file executable. If COMMENT is supplied, it is inserted after the
+# `#!' sequence but before initialization text begins. After this
+# macro, additional text can be appended to FILE to form the body of
+# the child script. The macro ends with non-zero status if the
+# file could not be fully written (such as if the disk is full).
+# _LT_GENERATED_FILE_INIT
# LT_OUTPUT
# ---------
# about autoupdate's warning because that contains
# information on what to do *after* running autoupdate.
+# This is what autoupdate's m4 run will expand. It fires
+# the warning (with _au_warn_XXX), outputs it into the
+# updated configure.ac (with AC_DIAGNOSE), and then outputs
+# the replacement expansion.
+
+
+# This is an auxiliary macro that is also run when
+# autoupdate runs m4. It simply calls m4_warning, but
+# we need a wrapper so that each warning is emitted only
+# once. We break the quoting in m4_warning's argument in
+# order to expand this macro's arguments, not AU_DEFUN's.
+
+
+# Finally, this is the expansion that is picked up by
+# autoconf. It tells the user to run autoupdate, and
+# then outputs the replacement expansion. We do not care
+# about autoupdate's warning because that contains
+# information on what to do *after* running autoupdate.
+
# _LT_TAG_COMPILER
# _LT_SHELL_INIT
+
# _LT_PROG_ECHO_BACKSLASH
# -----------------------
-# Add some code to the start of the generated configure script which
-# will find an echo command which doesn't interpret backslashes.
+# Find how we can fake an echo command that does not interpret backslash.
+# In particular, with Autoconf 2.60 or later we add some code to the start
+# of the generated configure script which will find a shell with a builtin
+# printf (which we can use as an echo command).
# _LT_PROG_ECHO_BACKSLASH
# _LT_LANG_C_CONFIG
-# _LT_PROG_CXX
-# ------------
-# Since AC_PROG_CXX is broken, in that it returns g++ if there is no c++
-# compiler, we have our own version here.
-# _LT_PROG_CXX
-
-
-
# _LT_LANG_CXX_CONFIG([TAG])
# --------------------------
# Ensure that the configuration variables for a C++ compiler are suitably
# _LT_SYS_HIDDEN_LIBDEPS
-# _LT_PROG_F77
-# ------------
-# Since AC_PROG_F77 is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-# _LT_PROG_F77
-
-
-
# _LT_LANG_F77_CONFIG([TAG])
# --------------------------
# Ensure that the configuration variables for a Fortran 77 compiler are
# _LT_LANG_F77_CONFIG
-# _LT_PROG_FC
-# -----------
-# Since AC_PROG_FC is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-# _LT_PROG_FC
-
-
-
# _LT_LANG_FC_CONFIG([TAG])
# -------------------------
# Ensure that the configuration variables for a Fortran compiler are
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