Import buildroot 2016.02.01
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@@ -0,0 +1,153 @@
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From c7c769990bca3049bc389dcbd9985adaec134946 Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Sat, 29 Aug 2015 11:59:18 +0200
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Subject: [PATCH] Use the native compiler to build generate_cookbook
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The generate_cookbook binary needs to be executed at build time. When
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cross-compiling, this means that it should be built with the native
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compiler rather than the cross-compiler.
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To achieve this, this commit imports the AX_CC_FOR_BUILD autoconf
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macro from the GNU Autoconf Archive project, and adjusts
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src/Makefile.am to use CC_FOR_BUILD to build generate_cookbook.
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Based on initial work by Bernd Kuhls.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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Makefile.am | 1 +
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configure.ac | 2 ++
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m4/ax_cc_for_build.m4 | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++
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src/Makefile.am | 3 ++
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4 files changed, 83 insertions(+)
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create mode 100644 m4/ax_cc_for_build.m4
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diff --git a/Makefile.am b/Makefile.am
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index 4468bca..bd3ce01 100644
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--- a/Makefile.am
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+++ b/Makefile.am
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@@ -2,6 +2,7 @@ AM_CFLAGS = -Isrc -fPIC -Wall -O3 -lm
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AUTOMAKE_OPTIONS = gnu
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NAME = codec2
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AM_CPPFLAGS = $(AM_CFLAGS)
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+ACLOCAL_AMFLAGS = -I m4
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pkgconfigdir = $(libdir)/pkgconfig
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pkgconfig_DATA = codec2.pc
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diff --git a/configure.ac b/configure.ac
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index 493c517..7520af6 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -4,10 +4,12 @@
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AC_PREREQ([2.59])
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AC_INIT(codec2, 0.2, david@rowetel.com)
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AM_INIT_AUTOMAKE
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+AC_CONFIG_MACRO_DIR([m4])
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# Checks for programs.
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AC_PROG_CC
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AC_PROG_LIBTOOL
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+AX_CC_FOR_BUILD
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# Checks for libraries.
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# FIXME: Replace `main' with a function in `-lm':
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diff --git a/m4/ax_cc_for_build.m4 b/m4/ax_cc_for_build.m4
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new file mode 100644
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index 0000000..c880fd0
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--- /dev/null
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+++ b/m4/ax_cc_for_build.m4
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@@ -0,0 +1,77 @@
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+# ===========================================================================
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+# http://www.gnu.org/software/autoconf-archive/ax_cc_for_build.html
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+# ===========================================================================
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+#
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+# SYNOPSIS
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+#
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+# AX_CC_FOR_BUILD
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+#
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+# DESCRIPTION
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+#
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+# Find a build-time compiler. Sets CC_FOR_BUILD and EXEEXT_FOR_BUILD.
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+#
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+# LICENSE
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+#
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+# Copyright (c) 2010 Reuben Thomas <rrt@sc3d.org>
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+# Copyright (c) 1999 Richard Henderson <rth@redhat.com>
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+#
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+# This program is free software: you can redistribute it and/or modify it
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+# under the terms of the GNU General Public License as published by the
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+# Free Software Foundation, either version 3 of the License, or (at your
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+# option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful, but
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+# WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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+# Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License along
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+# with this program. If not, see <http://www.gnu.org/licenses/>.
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+#
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+# As a special exception, the respective Autoconf Macro's copyright owner
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+# gives unlimited permission to copy, distribute and modify the configure
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+# scripts that are the output of Autoconf when processing the Macro. You
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+# need not follow the terms of the GNU General Public License when using
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+# or distributing such scripts, even though portions of the text of the
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+# Macro appear in them. The GNU General Public License (GPL) does govern
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+# all other use of the material that constitutes the Autoconf Macro.
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+#
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+# This special exception to the GPL applies to versions of the Autoconf
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+# Macro released by the Autoconf Archive. When you make and distribute a
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+# modified version of the Autoconf Macro, you may extend this special
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+# exception to the GPL to apply to your modified version as well.
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+
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+#serial 2
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+
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+dnl Get a default for CC_FOR_BUILD to put into Makefile.
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+AC_DEFUN([AX_CC_FOR_BUILD],
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+[# Put a plausible default for CC_FOR_BUILD in Makefile.
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+if test -z "$CC_FOR_BUILD"; then
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+ if test "x$cross_compiling" = "xno"; then
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+ CC_FOR_BUILD='$(CC)'
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+ else
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+ CC_FOR_BUILD=gcc
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+ fi
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+fi
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+AC_SUBST(CC_FOR_BUILD)
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+# Also set EXEEXT_FOR_BUILD.
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+if test "x$cross_compiling" = "xno"; then
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+ EXEEXT_FOR_BUILD='$(EXEEXT)'
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+else
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+ AC_CACHE_CHECK([for build system executable suffix], bfd_cv_build_exeext,
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+ [rm -f conftest*
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+ echo 'int main () { return 0; }' > conftest.c
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+ bfd_cv_build_exeext=
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+ ${CC_FOR_BUILD} -o conftest conftest.c 1>&5 2>&5
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+ for file in conftest.*; do
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+ case $file in
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+ *.c | *.o | *.obj | *.ilk | *.pdb) ;;
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+ *) bfd_cv_build_exeext=`echo $file | sed -e s/conftest//` ;;
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+ esac
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+ done
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+ rm -f conftest*
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+ test x"${bfd_cv_build_exeext}" = x && bfd_cv_build_exeext=no])
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+ EXEEXT_FOR_BUILD=""
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+ test x"${bfd_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${bfd_cv_build_exeext}
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+fi
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+AC_SUBST(EXEEXT_FOR_BUILD)])dnl
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diff --git a/src/Makefile.am b/src/Makefile.am
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index 1153b3c..719088d 100644
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--- a/src/Makefile.am
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+++ b/src/Makefile.am
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@@ -77,6 +77,9 @@ CODEBOOKSGE= \
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noinst_PROGRAMS = generate_codebook genlspdtcb
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+generate_codebook$(EXEEXT_FOR_BUILD): generate_codebook.c
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+ $(CC_FOR_BUILD) -o $@ generate_codebook.c -lm
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+
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codebook.$(OBJEXT): codebook.c
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codebookd.$(OBJEXT): codebookd.c
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codebookdt.$(OBJEXT): codebookdt.c
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--
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2.5.0
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