I need to build the latest OpenSSL (1.0.0g) for an Android application. I am trying to follow the example given by https://github.com/fries/android-external-openssl, but I just can't get it built.
I am running Windows 7 Professional (64-bit) with a complete and recent Cygwin. I have installed the Android SDK and NDK, and I can successfully build and run the NDK's hello-jni sample application.
I created a new sample NDK app called hello-openssl. In its jni directory, I created an openssl directory. There, I unzipped https://github.com/fries/android-external-openssl/zipball/master, which gave me this tree structure under c:\android\android-ndk\samples\hello-openssl:
jni
+- openssl
+- apps
+- crypto
+- include
+- openssl
+- ssl
I then modified the Android.mk file in the jni directory in an attempt to include the OpenSSL files:
subdirs := $(addprefix $(LOCAL_PATH)/,$(addsuffix /Android.mk, \
openssl \
))
include $(subdirs)
Now when I execute ndk-build, it compiles several .c files, but then quickly fails:
Compile thumb : crypto <= cryptlib.c
In file included from jni/openssl/crypto/cryptlib.c:117:
jni/openssl/crypto/cryptlib.h:65:18: error: e_os.h: No such file or directory
jni/openssl/crypto/cryptlib.h:72:28: error: openssl/crypto.h: No such file or directory
I found http://osdir.com/ml/android-ndk/2010-07/msg00424.html, which tells me to "addjni and jni/include to the above LOCAL_C_INCLUDES" in crypto/Android.mk, but I can't figure out the syntax I should use to achieve this.
I also can't figure out of I have the correct directory structure.
I sincerely appreciate any help that can be offered.
Thanks!