Android build PJSIP with openssl

问题

I'm trying to build PJSIP on Android with SSL/TLS support.

I successfully built OpenSSL following this answer (without fips, as shared-.so libraries) and installed it in ~/android (which created the ~/android/ssl directory).

Now, when i do

./configure-android --with-ssl=/home/andrea/android/ssl

and look at the config.log, the first error states

<ndk-directories-and-stuff>/arm-linux-androideabi/bin/ld: warning: libdl.so, needed by /home/andrea/android/ssl/lib/libcrypto.so, not found (try using -rpath or -rpath-link)

a lot of undefined references follow.

As consequence SSL support is disabled:

aconfigure:7012: result: ** OpenSSL libraries not found, disabling SSL support **
ac_cv_header_openssl_ssl_h=yes
ac_cv_lib_ssl_SSL_library_init=no
CFLAGS=' -I/home/andrea/android/android-ndk-r8e/platforms/android-14/arch-arm/usr/include -DPJ_IS_BIG_ENDIAN=0 -DPJ_IS_LITTLE_ENDIAN=1 -I/home/andrea/android/ssl/include'
LDFLAGS=' -nostdlib -L/home/andrea/android/android-ndk-r8e/platforms/android-14/arch-arm/usr/lib/ -L/home/andrea/android/ssl/lib'
ac_no_ssl=''
libssl_present=''
openssl_h_present='1'

but libdl.so exists in the ndk's directory:

<ndk-dir>/platforms/android-14/arch-arm/usr/lib/

I guess I have to tell ld where the other libraries are, what does ld's suggestion mean?

try using -rpath or -rpath-link

I can't understand what -rpath or rpath-link are or where to apply them .

any ideas?

回答1:

I successfully built PJSIP with OpenSSL. please follow the following steps:

First download openssl-android and compile it by reading ReadMe File. (Put your android-ndk to PATH and execute command ndk-build in openssl-android root) then just copy libcrypto.so and libssl.so from libs/armeabi/ folder to lib/ folder in root of openssl-android (you can create this folder). your directory structure now should be like:
openssl-android/
->apps
->crypto
->include
->jni
->lib
->libs
->...

now just execute in root directory of pjsip:
./configure-android --with-ssl=/home/your-user-name/path-to-openssl-android-dir

for confirmation that openssl is included just pipe this command to grep like:
./configure-android --with-ssl=/home/your-user-name/path-to-openssl-android-dir | grep -wi ssl

then you will see this line result: OpenSSL library found, SSL support enabled. This means, OpenSSL is now enabled for your PJSIP. Now you can continue normal.

hope this helps.

来源：https://stackoverflow.com/questions/16632796/android-build-pjsip-with-openssl

标签

android

OpenSSL

pjsip