在ubuntu上編譯 wpa_supplicant-2.6

1.1 libnl-3.4.0
./configure --prefix=/home/fnie/wpa/out/libnl --disable-static
make
make check
make install
// to install the API documentation:
mkdir -vp /home/fnie/wpa/out/libnl/doc
tar -xf ../libnl-doc-3.4.0.tar.gz --strip-components=1 --no-same-owner -C /home/fnie/wpa/out/libnl/doc

1.2 libnl-1.1-stable
后面編譯 wpa_supplicant-2.6 時報錯，"can't find -lnl"，所以編譯 libnl-1.1-stable。
./configure --prefix=/home/fnie/wpa/out/libnl-1.1-stable
make
make check
make install
// to install the API documentation:
mkdir -vp /home/fnie/wpa/out/libnl/doc
tar -xf ../libnl-doc-3.4.0.tar.gz --strip-components=1 --no-same-owner -C /home/fnie/wpa/out/libnl/doc

2. openssl
   ./config shared --prefix=/home/fnie/wpa/out/ssl/prefix --openssldir=/home/fnie/wpa/out/ssl/configuration
   make
   make test
   make install

3. wpa_supplicant-2.6
   cd ~/wpa/wpa_supplicant-2.6/wpa_supplicant
   cp defconfig .config
   修改配置文件 .config，在"#Uncomment following two linee and fix..."下增加如下語句，用來添加openssl和libnl的頭文件和庫文件目錄，更新編譯鏈接環境變量：
   CFLAGS += -I/home/fnie/wpa/out/ssl/prefix/include
   CFLAGS += -I/home/fnie/wpa/out/libnl/include
   LIBS += -L/home/fnie/wpa/out/ssl/prefix/lib
   LIBS += -L/home/fnie/wpa/out/libnl/lib
   LIBS += -L/home/fnie/wpa/out/libnl-1.1-stable/lib
   LIBS_p += -L/home/fnie/wpa/out/ssl/prefix/lib

   執行 make 進行編譯，成功后生成三個目標文件 wpa_supplicant, wpa_cli, wpa_passphrase 。