我正在尝试交叉编译libsndfile，以便在具有flac功能的intel edison上使用。我已成功将FLAC，OGG和VORBIS编译到我的交叉工具链中，但当我运行./configure时，它给出了以下输出：
checking for pkg-config... /opt/poky-edison/1.7.3/sysroots/i686-pokysdk-linux/usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for flac >= 1.3.1 ... no
checking for ogg >= 1.1.3 ... yes
checking for vorbis >= 1.2.3 ... yes
checking for vorbisenc >= 1.2.3 ... yes
configure: WARNING: *** One or more of the external libraries (ie libflac, libogg and
configure: WARNING: *** libvorbis) is either missing (possibly only the development
configure: WARNING: *** headers) or is of an unsupported version.
configure: WARNING: ***
configure: WARNING: *** Unfortunately, for ease of maintenance, the external libs
configure: WARNING: *** are an all or nothing affair.
我的环境变量设置如下：
export SDKTARGETSYSROOT=/opt/poky-edison/1.7.3/sysroots/core2-32-poky-linux
export PATH=/opt/poky-edison/1.7.3/sysroots/i686-pokysdk-linux/usr/bin:/opt/poky-edison/1.7.3/sysroots/i686-pokysdk-linux/usr/bin/i586-poky-linux:$PATH
export PKG_CONFIG_SYSROOT_DIR=$SDKTARGETSYSROOT
export PKG_CONFIG_PATH=$SDKTARGETSYSROOT/usr/lib/pkgconfig
export CONFIG_SITE=/opt/poky-edison/1.7.3/site-config-core2-32-poky-linux
export OECORE_NATIVE_SYSROOT="/opt/poky-edison/1.7.3/sysroots/i686-pokysdk-linux"
export OECORE_TARGET_SYSROOT="$SDKTARGETSYSROOT"
export OECORE_ACLOCAL_OPTS="-I /opt/poky-edison/1.7.3/sysroots/i686-pokysdk-linux/usr/share/aclocal"
export PYTHONHOME=/opt/poky-edison/1.7.3/sysroots/i686-pokysdk-linux/usr
export CC="i586-poky-linux-gcc -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -mstackrealign -fno-omit-frame-pointer --sysroot=$SDKTARGETSYSROOT"
export CXX="i586-poky-linux-g++ -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -mstackrealign -fno-omit-frame-pointer --sysroot=$SDKTARGETSYSROOT -I${SDKTARGETSYSROOT}/usr/include/c++/4.9.1 -I${SDKTARGETSYSROOT}/usr/include/c++/4.9.1/i586-poky-linux"
export CPP="i586-poky-linux-gcc -E -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -mstackrealign -fno-omit-frame-pointer --sysroot=$SDKTARGETSYSROOT"
export AS="i586-poky-linux-as "
export LD="i586-poky-linux-ld --sysroot=$SDKTARGETSYSROOT"
export GDB=i586-poky-linux-gdb
export STRIP=i586-poky-linux-strip
export RANLIB=i586-poky-linux-ranlib
export OBJCOPY=i586-poky-linux-objcopy
export OBJDUMP=i586-poky-linux-objdump
export AR=i586-poky-linux-ar
export NM=i586-poky-linux-nm
export M4=m4
export TARGET_PREFIX=i586-poky-linux-
export CONFIGURE_FLAGS="--target=i586-poky-linux --host=i586-poky-linux --build=i686-linux --with-libtool-sysroot=$SDKTARGETSYSROOT"
export CFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types"
export CXXFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types"
export LDFLAGS=""
export CPPFLAGS=""
export KCFLAGS="--sysroot=$SDKTARGETSYSROOT"
export OECORE_DISTRO_VERSION="1.7.3"
export OECORE_SDK_VERSION="1.7.3"
export ARCH=x86
export CROSS_COMPILE=i586-poky-linux-
但flac库在那里（在/opt/poky-edison/1.7.3/sysroots/core2-32-poky-linux/usr/local）！我已经尝试添加显式路径到我在几个地方编译的flac库，但没有什么有所作为。我应该尝试调整路径吗？
答案 0 :(得分：2)
Edison SDK实际上已经提供了FLAC，但是旧的版本。将我自己的版本编译到SDK中的@echo off
color 0a
title TEST FOR HACK SIM
:menu
ECHO what do you want to test?
echo.
echo -open disk
echo -save save
echo -open save
echo.
echo.
set /p choice= choose one:
if %choice% == "open disk" goto disk
if %choice% == "open save" goto saveo
if %choice% == "save save" goto saves
:disk
call D:\
echo did it work!?
goto menu
:saveo
cls
pause
(
set /p save=
)<C:\Users\%username%\Searches\savefiles.txt
echo %save%
pause
goto menu
:saves
set /p fun= what number do you want?>
(
echo %fun%
)>C:\Users\%username%\Searches\savefiles.txt
位置并没有更新pkgConfig，因为它将pkgconfig放入usr/local/lib。
最简单的解决方案是将路径/usr/local/ib/pkgconfig添加到环境设置脚本中的:变量中。例如，第4行变为：
PKG_CONFIG_PATH
您也可以在
export PKG_CONFIG_PATH=$SDKTARGETSYSROOT/usr/lib/pkgconfig:$SDKTARGETSYSROOT/usr/local/lib/pkgconfig
步骤中传递路径，但我认为将其添加到变量是更好的长期解决方案。