Thanks so much for the quick response!
My OS is ubuntu-15.04-desktop-amd64 The uname -a gives me:
[my computer name] 3.19.0-18-generic #18-Ubuntu SMP x86_64 GNU/Linux
echo $SHELL gives:
shell interpreter: /bin/bash
When I modify head of check_tools.sh from "#!/bin/sh" to "#!/bin/sh -x" and execute verbosely using make V=1, it gives me:
/bin/sh: 0: Illegal option -
Picked up JAVA_TOOLS_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar
So it doesn't like the -x. I also tried –x, and also previously had tried chmod +x check_tools.sh before doing the make, and also tried running it as su, with no results. When I take out the -x again, and run in verbose mode, the first line says the same as in my original posting, followed by the 3 lines above:
make: ./check_tools.sh: Command not found
Picked up JAVA_TOOLS_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar
As instructed, I'm in the console in the /usr/local/linphone-android/ directory with all the git files, and have the tools, platform-tools, and android-ndk-r10e directories in the same /usr/local directory with their paths added to the .bashrc file, as follows:
export PATH=${PATH}:/usr/local/tools
export PATH=${PATH}:/usr/local/platform-tools
export PATH=${PATH}:/usr/local/android-ndk-r10e
I hope this is a little helpful diagnosing the problem.