最新版OpenWrt編譯教程，解決依賴問題

1. Install  git , to conveniently download the OpenWrt source code, and  build tools to do the cross-compilation process:

   apt-get update
   sudo apt-get install git-core build-essential libssl-dev libncurses5-dev unzip

   Some feeds might not available over git but only via  subversion (short:  svn) or  mercurial. If you want to obtain their source-code, you need to install svn and mercurial as well:

   sudo apt-get install subversion mercurial

   • for information about the build tools see  make and  build-essential
   • for information about git see  git(7)
   • for information about the subversion tool see  svn and  subversion documentation (multiple languages)
2. Download the OpenWrt bleeding edge(trunk Version) with  git ( see Downloading Sources for more options!):

   git clone git:git.openwrt.org/openwrt.git

   this creates a directory 'openwrt', which is the OpenWrt Buildroot build-directory 
   the OpenWrt toolchain "OpenWrt Buildroot" is included

3. ( optional) Download and install all available "feeds" ( see OpenWrt Feeds for more options!):

   cd openwrt && ./scripts/feeds update -a && ./scripts/feeds install -a

4. Make OpenWrt Buildroot check for missing packages on your build-system using one of the following commands:

   make defconfig
   make prereq
   make menuconfig

   There you will need to select what you want to compile.

5. Proceed with  build (i.e. cross-compile the downloaded sources to binaries)

   After the cross-compilation process the ''trunk''-directory contained 244,451 files with a total size of 3.2GiB!

      其它版本號地址:http://git.openwrt.org/

      dl文件夾下載:http://downloads.openwrt.org.cn/sources/

我在第一次編譯OpenWRT時，出現例如如下錯誤提示：

gconvert.c:66:2: error: #error GNU libiconv not in use but included iconv.h is from libiconv

我在網上找解決方式，結果一致地都是說，又一次 ./configure 一下：

./configure --enable-iconv=no --with-libiconv=gnu
make

可問題的關鍵是：OpenWRT的trunk路徑下沒見有個 configure 呀！

後來，通過細緻推敲，發現是在編glib時沒經過。

$ find -name "gconvert.c"
./build_dir/host/pkg-config-0.28/glib/glib/gconvert.c

那我就直接進到 ./build_dir/host/pkg-config-0.28/glib/ 路徑下。發現該路徑下有 configure 文件。

那我說直接在該路徑下編譯 glib

$ cd build_dir/host/pkg-config-0.28/glib/
./configure --enable-iconv=no --with-libiconv=gnu
make

這樣。glib 就順利經過了編譯。

再回到 OpenWRT的trunk路徑下，繼續 make.