为 android 交叉编译 openconnect-8.08 时出错

Question

When i follow instructions here , i get this error when running latest instruction that is "make":

make[1]: Entering directory '/home/fasegiar/Downloads/openconnect-8.08'
  CC       libopenconnect_la-ssl.lo
In file included from ssl.c:41:
In file included from ./openconnect-internal.h:102:
In file included from /usr/include/libxml2/libxml/tree.h:1307:
In file included from /usr/include/libxml2/libxml/xmlmemory.h:218:
In file included from /usr/include/libxml2/libxml/threads.h:35:
In file included from /usr/include/libxml2/libxml/globals.h:18:
In file included from /usr/include/libxml2/libxml/parser.h:810:
/usr/include/libxml2/libxml/encoding.h:31:10: fatal error: 'unicode/ucnv.h' file not found
#include <unicode/ucnv.h>
         ^~~~~~~~~~~~~~~~
1 error generated.
Makefile:1037: recipe for target 'libopenconnect_la-ssl.lo' failed
make[1]: *** [libopenconnect_la-ssl.lo] Error 1
make[1]: Leaving directory '/home/fasegiar/Downloads/openconnect-8.08'
Makefile:749: recipe for target 'all' failed
make: *** [all] Error 2

The TARGET that i use is: armv7a-linux-androideabi

My TOOLCHAIN is: /home/fasegiar/Documents/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64

Here is the output of the config.log after./configure call

Answer 1

From the snippet you posted I can already tell you this is not going to work. When cross-compiling you need to cross-compile all dependencies first for your target platform (ie Android) and then tell the configure script where to find the installed dependencies. For openconnect the dependencies are:

Required:

• libxml2 (this in turn requires libicu, as your error points out)
• zlib (this is bundled )
• Either OpenSSL or GnuTLS (v3.2.10+) (see NDKPorts )

Optional:

• p11-kit (for PKCS#11 support)
• libp11 (also needed for PKCS#11 support if using OpenSSL)
• libproxy
• trousers (for TPMv1 support if using GnuTLS)
• libtasn1 and either tss2-esys or IBM's TPM 2.0 TSS. (for TPMv2 support if using GnuTLS)
• libstoken (for SecurID software token support)
• libpskc (for RFC6030 PSKC file storage of HOTP/TOTP keys)
• libpcsclite (for Yubikey hardware HOTP/HOTP support)