永远也记不住的linux环境变量，库文件，头文件，交叉编译...

一、环境变量
1、node-v4.9.1-linux-armv7l
1）安装
cp node-v4.9.1-linux-armv7l.tar.gz /usr/local/
cd /usr/local/
tar xvf node-v4.9.1-linux-armv7l.tar.gz

2）添加环境变量
export PATH=$PATH:/usr/local/node-v4.9.1-linux-armv7l/bin
export LD_LIBRARY_PATH=/usr/local/node-v4.9.1-linux-armv7l/lib:$LD_LIBRARY_PATH
添加到/etc/profile文件或者~/.bashrc文件
vi /etc/profie
export PATH=$PATH:/usr/local/node-v4.9.1-linux-armv7l/bin
export LD_LIBRARY_PATH=/usr/local/node-v4.9.1-linux-armv7l/lib:$LD_LIBRARY_PATH
source /etc/profile
vi ~/.bashrc
export PATH=$PATH:/usr/local/node-v4.9.1-linux-armv7l/bin
source ~/.bashrc
或者直接echo "export PATH=$PATH:/usr/local/node-v4.9.1-linux-armv7l/bin " >> ~/.bashrc

二、交叉编译，库文件，头文件
1、redis服务端
1）redis编译
wget http://download.redis.io/releases/redis-4.0.11.tar.gz
tar xvf redis-4.0.11.tar.gz
cd redis-4.0.11
#make MALLOC=libc
make MALLOC=Jemalloc
make install PREFIX=/usr/local/redis
sudo mkdir -p /usr/local/redis/etc
sudo cp redis.conf /usr/local/redis/etc
vi /etc/profile
export PATH=$PATH:/usr/local/redis/bin
source /etc/profile
/usr/local/redis/redis-server /usr/local/redis/etc/redis.conf

2）redis交叉编译
tar xvf redis-4.0.11.tar.gz
cd redis-4.0.11
export CC=arm-linux-gnueabihf-gcc
export CXX=arm-linux-gnueabihf-g++
export LD=arm-linux-gnueabihf-ld
export RAINLIB=arm-linux-gnueabihf-rainlib
export AR=arm-linux-gnueabihf-ar
export LINK=arm-linux-gnueabihf-g++
#make MALLOC=libc
make MALLOC=Jemalloc
make install PREFIX=_install
mkdir _install/etc
sudo cp redis.conf _install/etc
vi /etc/profile
export PATH=$PATH:/usr/local/xxx/bin
source /etc/profile
./redis-server /usr/local/xxx/redis/etc/redis.conf

2、redis c语言客户端
1）hiredis编译
make
make install PREFIX=_install
gcc -o example example.c -I ./_install/include/hiredis -L ./_install/lib -lhiredis
export LD_LIBRARY_PATH=/usr/local/hiredis/lib:$LD_LIBRARY_PATH
./example

2）hiredis交叉编译
export CC=arm-linux-gnueabihf-gcc
export CXX=arm-linux-gnueabihf-g++
export LD=arm-linux-gnueabihf-ld
export RAINLIB=arm-linux-gnueabihf-rainlib
export AR=arm-linux-gnueabihf-ar
export LINK=arm-linux-gnueabihf-g++
make
make install PREFIX=_install
arm-linux-gnueabihf-gcc -o example example.c -I ./_install/include/hiredis -L ./_install/lib -lhiredis
export LD_LIBRARY_PATH=/usr/local/hiredis/lib:$LD_LIBRARY_PATH
./example

 

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3、pjsip移植

1）alsa交叉编译

export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf
tar xjvf alsa-lib-1.1.7.tar.bz2
cd alsa-lib-1.1.7/
./configure --host=arm-linux-gnueabihf CC=arm-linux-gnueabihf-gcc --prefix=/home/dong/alsa-lib-1.1.7/_install
make
make install

2）pjsip交叉编译

./configure --prefix=/home/dong/pjproject-2.8/_install --host=arm-linux-gnueabihf CC=/usr/local/gcc-linaro-arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc --disable-libwebrtc CFLAGS=-I/home/dong/alsa-lib-1.1.7/_install/include LDFLAGS=-L/home/dong/alsa-lib-1.1.7/_install/lib

make dep

make

make install

 

pkg-config

https://blog.csdn.net/newchenxf/article/details/51750239

 

autogen.sh

#!/bin/sh
# Run this to generate all the initial makefiles, etc.

set -e

srcdir=`dirname $0`
test -z "$srcdir" && srcdir=.

DIE=0

(test -f $srcdir/configure.ac) || {
    echo -n "**Error**: Directory $srcdir does not look like the"
    echo " top-level package directory"
    exit 1
}

(autoconf --version) < /dev/null > /dev/null 2>&1 || {
  echo
  echo "**Error**: You must have autoconf installed."
  echo "Download the appropriate package for your distribution,"
  echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
  DIE=1
}

(grep "^AM_PROG_LIBTOOL" $srcdir/configure.ac >/dev/null) && {
  (libtool --version) < /dev/null > /dev/null 2>&1 || {
    echo
    echo "**Error**: You must have libtool installed."
    echo "You can get it from: ftp://ftp.gnu.org/pub/gnu/"
    DIE=1
  }
}

(automake --version) < /dev/null > /dev/null 2>&1 || {
  echo
  echo "**Error**: You must have automake installed."
  echo "You can get it from: ftp://ftp.gnu.org/pub/gnu/"
  DIE=1
  NO_AUTOMAKE=yes
}


# if no automake, don't bother testing for aclocal
test -n "$NO_AUTOMAKE" || (aclocal --version) < /dev/null > /dev/null 2>&1 || {
  echo
  echo "**Error**: Missing aclocal.  The version of automake"
  echo "installed doesn't appear recent enough."
  echo "You can get automake from ftp://ftp.gnu.org/pub/gnu/"
  DIE=1
}

if test "$DIE" -eq 1; then
  exit 1
fi

if test -z "$*"; then
  echo "**Warning**: I am going to run configure with no arguments."
  echo "If you wish to pass any to it, please specify them on the"
  echo $0 " command line."
  echo
fi

case $CC in
xlc )
  am_opt=--include-deps;;
esac

aclocalinclude="$ACLOCAL_FLAGS"

echo "Running libtoolize..."
libtoolize --force --copy
echo "Running gtkdocize..."
gtkdocize
echo "Running aclocal $aclocalinclude ..."
aclocal $aclocalinclude
echo "Running autoheader..."
autoheader
echo "Running automake --foreign -Wno-portability $am_opt ..."
automake --add-missing --foreign -Wno-portability $am_opt
echo "Running autoconf ..."
autoconf

conf_flags="--enable-maintainer-mode"

if test x$NOCONFIGURE = x; then
  echo "Running $srcdir/configure $conf_flags $@ ..."
  $srcdir/configure $conf_flags "$@" \
  && echo "Now type make to compile." || exit 1
else
  echo "Skipping configure process."
fi

 

# 2020年 06月 05日 星期五 15:58:19 CST
# HuaWei LiteOS Linux, Cross-Toolchain PATH
export PATH="/opt/hisi-linux/x86-arm/arm-himix100-linux/bin:$PATH"
#

 

【1】include头文件路径

# C

export C_INCLUDE_PATH=/usr/local/include/opencv4:$C_INCLUDE_PATH

# CPP

export CPLUS_INCLUDE_PATH=/usr/local/include/opencv4:$CPLUS_INCLUDE_PATH

【2】link链接库文件路径

-fPIC -shared

-fPIC -static

链接库文件的搜索路径指定有两种方式：1）修改/etc/so.ld.conf 2）修改环境变量，在其中添加自己的路径

1）在环境变量中添加

动态链接库搜索路径：

export LD_LIBRARY_PATH=XXX:$LD_LIBRARY_PATH

静态链接库搜索路径：

export LIBRARY_PATH=XXX:$LIBRARY_PATH

以上修改可以直接命令行输入（一次性），可以在/etc/profile中完成（对所有用户生效），也可以在用户home目录下的.bashrc或.bash_profile中添加（针对某个用户生效）,修改完后重新登录即生效。

2）在/etc/ld.so.conf 中添加指定的链接库搜索路径（需要root权限），然后运行 /sbin/ldconfig，以达到刷新 /etc/ld.so.cache的效果。

以上两种方式均可以达到指定链接库搜索路径的效果。