Comments

8 responses to “Let’s try to build gemrb for android on Mac OSX”

1. 

   Fugu Tabetai

   2013-07-07

   I don’t have make and friends installed. I do have XCode installed. It doesn’t include gcc and those guys. You need to install Xcode 4.2 and the command line tools for that. XCode 4.2 is not available for OSX 10.6 (Snow Leopard.)

   I installed https://github.com/kennethreitz/osx-gcc-installer instead.

   Reply
2. 

   fugu Tabetai

   2013-07-07

   don’t have a space in the path the NDK.
   I had my ndk installed in “~/Android Development/android-ndk-xxxx” and that resulted in errors like:

   dirname: extra operand `Development/android-ndk-r8e/ndk-build’
   Try `dirname –help’ for more information.
   make: /Users/davee/build/core/build-local.mk: No such file or directory
   make: *** No rule to make target `/Users/davee/build/core/build-local.mk’. Stop.

   changing to android_development at least allowed openal to compile. continuing on…

   Reply
3. 

   fugu Tabetai

   2013-07-07

   You need to have at least the “tools” subdir of the android sdk on your path as well:

   export PATH=”$PATH:/Users/davee/android_development/adt-bundle-mac-x86_64-20130219/sdk/tools”

   Reply
4. 

   fugu Tabetai

   2013-07-08

   Something is wrong with the include files. Possibly related to the case insensitivity of the file system? It looks like string.h is not being properly included:

   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:77:11: error: ‘::memchr’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:78:11: error: ‘::memcmp’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:79:11: error: ‘::memcpy’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:80:11: error: ‘::memmove’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:81:11: error: ‘::memset’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:82:11: error: ‘::strcat’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:83:11: error: ‘::strcmp’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:84:11: error: ‘::strcoll’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:85:11: error: ‘::strcpy’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:86:11: error: ‘::strcspn’ has not been declared
   /Users/davee/android_development/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.6/include/cstring:87:11: error: ‘::strerror’ has not been declared

   etc. I have a small hello world program that I compiled and that works fine with
   #include

   which is what is causing the problems in the build.

   I guess I’ll have to look closer at the files that are being included.

   Reply
5. 

   Fugu Tabetai

   2013-07-13

   Ok, the problem with the include files is that the local include paths are being included on the include path for the build. Basically, when does an #include instead of including the system string.h, we are including gemrb/core/System/String.h

   So there are a few things I can do. This happens on OSX because the file system is case insensitive. gcc things that “string.h” and “String.h” are the same thing, and since gemrb/core/System is included on the include path, String.h is picked up first.

   I think the best thing to do is to clean up the include path, and then make sure that all things we want to include that are gemrb specific are either in the main gemrb include location (gemrb/include) or are included off of the “gemrb/core” path including the subdirectory they are in:

   #include “System/String.h”

   I made changes to the android/build/gemrb/jni/src/Android.mk to remove all of the subdirectories from the include path. Now we just include the 3rd party dependencies include paths, “gemrb/includes”, and “gemrb/core”.

   That gets me much further in the compile process:

   /Users/davee/android_development/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: warning: ./obj/local/armeabi/libpython.so uses variable-size enums yet the output is to use 32-bit enums; use of enum values across objects may fail
   /Users/davee/android_development/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs-debug/main/main/gemrb/plugins/BAMImporter/BAMImporter.o: in function GemRB::BAMImporter::GetFrameInternal(unsigned short, unsigned char, bool, unsigned char const*, GemRB::AnimationFactory*):jni/src/main/gemrb/plugins/BAMImporter/BAMImporter.cpp:152: error: undefined reference to ‘GemRB::BAMSprite2D::BAMSprite2D(int, int, void const*, bool, GemRB::AnimationFactory*, GemRB::Palette*, unsigned int)’
   /Users/davee/android_development/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs-debug/main/main/gemrb/plugins/SDLVideo/SDLVideo.o: in function GemRB::SDLVideoDriver::CreateSprite(int, int, int, unsigned int, unsigned int, unsigned int, unsigned int, void*, bool, int):jni/src/main/gemrb/plugins/SDLVideo/SDLVideo.cpp:336: error: undefined reference to ‘GemRB::SDLSurfaceSprite2D::SDLSurfaceSprite2D(int, int, int, void*, unsigned int, unsigned int, unsigned int, unsigned int)’
   /Users/davee/android_development/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs-debug/main/main/gemrb/plugins/SDLVideo/SDLVideo.o: in function GemRB::SDLVideoDriver::CreatePalettedSprite(int, int, int, void*, GemRB::Color*, bool, int):jni/src/main/gemrb/plugins/SDLVideo/SDLVideo.cpp:357: error: undefined reference to ‘GemRB::SDLSurfaceSprite2D::SDLSurfaceSprite2D(int, int, int, void*, unsigned int, unsigned int, unsigned int, unsigned int)’
   /Users/davee/android_development/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs-debug/main/main/gemrb/plugins/SDLVideo/SDLVideo.o: in function GemRB::SDLVideoDriver::CreatePalettedSprite(int, int, int, void*, GemRB::Color*, bool, int):jni/src/main/gemrb/plugins/SDLVideo/SDLVideo.cpp:358: error: undefined reference to ‘GemRB::SDLSurfaceSprite2D::SetPalette(GemRB::Color*)’
   /Users/davee/android_development/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs-debug/main/main/gemrb/plugins/SDLVideo/SDLVideo.o: in function GemRB::SDLVideoDriver::GetScreenshot(GemRB::Region):jni/src/main/gemrb/plugins/SDLVideo/SDLVideo.cpp:866: error: undefined reference to ‘GemRB::SDLSurfaceSprite2D::SDLSurfaceSprite2D(int, int, int, void*, unsigned int, unsigned int, unsigned int, unsigned int)’
   collect2: ld returned 1 exit status
   make: *** [obj/local/armeabi/libmain.so] Error 1

   Reply
6. 

   Fugu Tabetai

   2013-07-15

   It turns out that in the time that I cloned the GemRB project and tried to build it, some updates had been made.
   I did a git fetch and a git merge origin/master and that seemed to work.
   I had a few other problems, but basically I think the problem is this: when I did the update, I got updated files in my project workspace. There is a build script, prep_env.sh that pulls some dependencies and copies some files to the build directory. It isn’t really made to run to update after pulling a new version down, so the Android.mk that I was using was different from the GEMRB_Android.mk that was packaged for the build. So I had to re-create some changes to that (including some new cpp files so their .o files would be included and hence the functions found) as well as fix a typo that had a single character transposed.

   I should think about writing a script that will just do the source code copying, or modify prep_env.sh to only re-copy the necessary GemRB source files to the build directory.

   In the mean time, I’ll leave this note here, and now I have to try to figure out how to debug the build on my device.

   Reply
7. 

   fugu Tabetai

   2013-07-15

   Trying to run “ant debug” I had a problem: it was complaining about some files ending in -e. I think that is due to a change I made in the prep_env.sh script that left some -e files around as sed backup files. I deleted them (find . -name “.*-e” -exec rm {} ¥;) and things seemed to go well.

   And by go well, I mean:

   -compile:
   [javac] Compiling 4 source files to /Users/davee/Documents/workspace/gemrb/android/build/gemrb/bin/classes
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/src/net/sourceforge/gemrb/GemRB.java:25: cannot find symbol
   [javac] symbol : class Environment
   [javac] location: package android.content
   [javac] import android.content.Environment;
   [javac] ^
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/src/net/sourceforge/gemrb/GemRB.java:52: cannot find symbol
   [javac] symbol : variable Environment
   [javac] location: class net.sourceforge.gemrb.GemRB
   [javac] File userSuppliedConfig = new File(Environment.getExternalStoragePath().concat(gemrbHomeFolder.separator).concat(“GemRB.cfg”));
   [javac] ^
   [javac] Note: /Users/davee/Documents/workspace/gemrb/android/build/gemrb/src/org/libsdl/app/SDLActivity.java uses or overrides a deprecated API.
   [javac] Note: Recompile with -Xlint:deprecation for details.
   [javac] 2 errors

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8. 

   Fugu Tabetai

   2013-07-15

   I guess the problem is that I don’t have android.jar on my classpath:

   THawk:gemrb davee$ find /Users/davee/android_development/adt-bundle-mac-x86_64-20130219/ -name “android.jar”
   /Users/davee/android_development/adt-bundle-mac-x86_64-20130219//sdk/platforms/android-10/android.jar
   /Users/davee/android_development/adt-bundle-mac-x86_64-20130219//sdk/platforms/android-15/android.jar
   /Users/davee/android_development/adt-bundle-mac-x86_64-20130219//sdk/platforms/android-17/android.jar
   THawk:gemrb davee$ export CLASSPATH=/Users/davee/android_development/adt-bundle-mac-x86_64-20130219//sdk/platforms/android-15/android.jar

   Hm, that didn’t fix it; same errors.

   ant -verbose debug:

   -compile:
   [javac] net/sourceforge/gemrb/GemRB.java added as net/sourceforge/gemrb/GemRB.class doesn’t exist.
   [javac] org/libsdl/app/SDLActivity.java added as org/libsdl/app/SDLActivity.class doesn’t exist.
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/gen/R.java.d skipped – don’t know how to handle it
   [javac] net/sourceforge/gemrb/BuildConfig.java added as net/sourceforge/gemrb/BuildConfig.class doesn’t exist.
   [javac] net/sourceforge/gemrb/R.java added as net/sourceforge/gemrb/R.class doesn’t exist.
   [javac] Compiling 4 source files to /Users/davee/Documents/workspace/gemrb/android/build/gemrb/bin/classes
   [javac] Using modern compiler
   [javac] Compilation arguments:
   [javac] ‘-d’
   [javac] ‘/Users/davee/Documents/workspace/gemrb/android/build/gemrb/bin/classes’
   [javac] ‘-classpath’
   [javac] ‘/Users/davee/Documents/workspace/gemrb/android/build/gemrb/bin/classes’
   [javac] ‘-sourcepath’
   [javac] ‘/Users/davee/Documents/workspace/gemrb/android/build/gemrb/src:/Users/davee/Documents/workspace/gemrb/android/build/gemrb/gen’
   [javac] ‘-target’
   [javac] ‘1.5’
   [javac] ‘-bootclasspath’
   [javac] ‘/Users/davee/android_development/adt-bundle-mac-x86_64-20130219/sdk/platforms/android-17/android.jar’
   [javac] ‘-encoding’
   [javac] ‘UTF-8’
   [javac] ‘-g’
   [javac] ‘-source’
   [javac] ‘1.5’
   [javac]
   [javac] The ‘ characters around the executable and arguments are
   [javac] not part of the command.
   [javac] Files to be compiled:
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/src/net/sourceforge/gemrb/GemRB.java
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/src/org/libsdl/app/SDLActivity.java
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/gen/net/sourceforge/gemrb/BuildConfig.java
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/gen/net/sourceforge/gemrb/R.java
   [javac] /Users/davee/Documents/workspace/gemrb/android/build/gemrb/src/net/sourceforge/gemrb/GemRB.java:25: cannot find symbol
   [javac] symbol : class Environment
   [javac] location: package android.content
   [javac] import android.content.Environment;
   [javac] ^

   (and more.)

   THawk:gemrb davee$ jar -tf /Users/davee/android_development/adt-bundle-mac-x86_64-20130219/sdk/platforms/android-17/android.jar | grep Environment.class
   android/os/Environment.class

   Looks like an issue with the version of the SDK that I am using. So I can change the code to use android.os.Environment, or see if I can find an older version of the android.jar. I’ll have to think about that for a bit.

   Reply