使用Android工具链与autoconf交叉编译

客观的 交叉编译Cisco libsrtp

安装程序 :我使用以下文件

<setup.sh>
  export CROSS_SYSROOT=/home/psurana/aa/sysroot
  export CROSS_COMPILE=aarch64-linux-android-
  export SYSROOT=/home/psurana/aa/sysroot
  export CC="${CROSS_COMPILE}gcc  --sysroot=${SYSROOT}"
  export CXX="${CROSS_COMPILE}gxx --sysroot=${SYSROOT}" 
  PATH=/home/psurana/aa/bin:$PATH

source setup.sh && ./configure --host=aarch64-linux-android --build=`./config.guess` && make -j

这是为我编译的。正在执行 readelf -h libsrtp.a ,收益率--

File: libsrtp.a(ut_sim.o)
ELF Header:
  Magic:   7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 
  Class:                             ELF64
  Data:                              2's complement, little endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - System V
  ABI Version:                       0
  Type:                              REL (Relocatable file)
  Machine:                           AArch64
  Version:                           0x1
  Entry point address:               0x0
  Start of program headers:          0 (bytes into file)
  Start of section headers:          1480 (bytes into file)
  Flags:                             0x0
  Size of this header:               64 (bytes)
  Size of program headers:           0 (bytes)
  Number of program headers:         0
  Size of section headers:           64 (bytes)
  Number of section headers:         10
  Section header string table index: 7

到现在为止,一直都还不错。

问题

然而,当我链接libsrtp时。作为一个预构建的静态库,我遇到以下错误:

./srtp/libsrtp.a(rand_source.o): In function `rand_source_init':

err.c:(.text+0x0): undefined reference to `stdout'
err.c:(.text+0xc): undefined reference to `stdout'

和

rand_source.c:(.text+0x28): undefined reference to `stderr'
rand_source.c:(.text+0x3c): undefined reference to `stderr'

我的理解是Android的libc中没有stderr,但libsrtp是如何获得这些的呢?

我以前使用类似的东西构建了相同的库,我知道它可以构建。我不知道可能是什么错误。