无法未定义引用'pj
尝试使用以下指南从Android源代码构建pjSIP - https://trac.pjsip.org/repos/wiki/Getting-Started/Android
./configure-android --use-ndk-cflags --disable-video --disable-l16-codec --disable-gsm-codec --disable-g722-codec --disable-g7221-codec --disable-ssl --disable-ilbc-codec --disable-tls
配置成功完成。
make dep && make clean && make
我得到了以下错误 - >
../src/pj/guid_android.c:43: error: undefined reference to 'pj_jni_jvm'
../src/pj/guid_android.c:117: error: undefined reference to 'pj_jni_jvm'
由链接调用的命令会导致此错误
/home/dev/android/android-ndk-r9b/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc -o ../bin/pjlib-test-arm-unknown-linux-androideabi
output/pjlib-test-arm-unknown-linux-androideabi/main.o output/pjlib-test-arm-unknown-linux-androideabi/activesock.o output/pjlib-test-arm-unknown-linux-androideabi/atomic.o output/pjlib-test-arm-unknown-linux-androideabi/echo_clt.o output/pjlib-test-arm-unknown-linux-androideabi/errno.o output/pjlib-test-arm-unknown-linux-androideabi/exception.o output/pjlib-test-arm-unknown-linux-androideabi/fifobuf.o output/pjlib-test-arm-unknown-linux-androideabi/file.o output/pjlib-test-arm-unknown-linux-androideabi/hash_test.o output/pjlib-test-arm-unknown-linux-androideabi/ioq_perf.o output/pjlib-test-arm-unknown-linux-androideabi/ioq_udp.o output/pjlib-test-arm-unknown-linux-androideabi/ioq_unreg.o output/pjlib-test-arm-unknown-linux-androideabi/ioq_tcp.o output/pjlib-test-arm-unknown-linux-androideabi/list.o output/pjlib-test-arm-unknown-linux-androideabi/mutex.o output/pjlib-test-arm-unknown-linux-androideabi/os.o output/pjlib-test-arm-unknown-linux-androideabi/pool.o output/pjlib-test-arm-unknown-linux-androideabi/pool_perf.o output/pjlib-test-arm-unknown-linux-androideabi/rand.o output/pjlib-test-arm-unknown-linux-androideabi/rbtree.o output/pjlib-test-arm-unknown-linux-androideabi/select.o output/pjlib-test-arm-unknown-linux-androideabi/sleep.o output/pjlib-test-arm-unknown-linux-androideabi/sock.o output/pjlib-test-arm-unknown-linux-androideabi/sock_perf.o output/pjlib-test-arm-unknown-linux-androideabi/ssl_sock.o output/pjlib-test-arm-unknown-linux-androideabi/string.o output/pjlib-test-arm-unknown-linux-androideabi/test.o output/pjlib-test-arm-unknown-linux-androideabi/thread.o output/pjlib-test-arm-unknown-linux-androideabi/timer.o output/pjlib-test-arm-unknown-linux-androideabi/timestamp.o output/pjlib-test-arm-unknown-linux-androideabi/udp_echo_srv_sync.o output/pjlib-test-arm-unknown-linux-androideabi/udp_echo_srv_ioqueue.o output/pjlib-test-arm-unknown-linux-androideabi/util.o -lpj-arm-unknown-linux-androideabi -nostdlib -L/home/dev/android/android-ndk-r9b/platforms/android-13/arch-arm/usr/lib -L/home/dev/android/android-ndk-r9b/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi/ -lm /home/dev/android/android-ndk-r9b/platforms/android-13/arch-arm/usr/lib/crtbegin_so.o -lgnustl_static -lc -lgcc -ldl -lOpenSLES -llog -L/home/dev/android/pjproject-2.5/pjlib/lib -L/home/dev/android/pjproject-2.5/pjlib-util/lib -L/home/dev/android/pjproject-2.5/pjnath/lib -L/home/dev/android/pjproject-2.5/pjmedia/lib -L/home/dev/android/pjproject-2.5/pjsip/lib -L/home/dev/android/pjproject-2.5/third_party/lib -nostdlib -L/home/dev/android/android-ndk-r9b/platforms/android-13/arch-arm/usr/lib -L/home/dev/android/android-ndk-r9b/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi/
代码guid_androind.c
#include <pj/guid.h>
#include <pj/log.h>
#include <pj/string.h>
#include <jni.h>
extern JavaVM *pj_jni_jvm;
static pj_bool_t attach_jvm(JNIEnv **jni_env)
{
if ((*pj_jni_jvm)->GetEnv(pj_jni_jvm, (void **)jni_env,
JNI_VERSION_1_4) < 0)
{
if ((*pj_jni_jvm)->AttachCurrentThread(pj_jni_jvm, jni_env, NULL) < 0)
{
jni_env = NULL;
return PJ_FALSE;
}
return PJ_TRUE;
}
return PJ_FALSE;
}
#define detach_jvm(attached)
if (attached)
(*pj_jni_jvm)->DetachCurrentThread(pj_jni_jvm);
挣扎着这个错误一整天，任何线索都非常感谢。 同时我能够构建2.3版本，没有任何错误，但不是2.5
我相信你错过了一步。 https://trac.pjsip.org/repos/wiki/Getting-Started/Android#BuildPreparation
将你的config_site.h设置为以下内容：
/* Activate Android specific settings in the 'config_site_sample.h' */
#define PJ_CONFIG_ANDROID 1
#include <pj/config_site_sample.h>
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