1. Edit the Makefile
From
DESTDIR ?= /usr/local MANDIR ?= share/man/man3 To
DESTDIR = /data/data/com.termux/files/usr/local MANDIR = /data/data/com.termux/files/usr/share/man/man3 In the Makefile, the question mark equal sign (?=) is for asking if the variable isn't defined. In this case just force it to use the specified path.
2. Build & Install without SUDO
$ make install You'll end up getting an error at end
ldconfig /data/data/com.termux/files/usr/local/lib make: ldconfig: No such file or directory make: *** [Makefile:55: install] Error 127 However the libraries are in the /data/data/com.termux/files/usr/local/lib directory and the man files should be in the right place
$ man get_string should display the CS50 man page for get_string
3. Add missing linking reference
More of a hack but works.
In build/lib there should be three files:
$ ls -1 libcs50.a libcs50.so libcs50.so.10.1.10 These three same files should also be in: /data/data/com.termux/files/usr/local/lib
$ cd /data/data/com.termux/files/usr/local/lib $ ls -l .... libcs50.a .... libcs50.so -> libcs50.so.10.1.0 .... libcs50.so.10.1.0 You'll need to add one symbolic link for libcs50.so.10:
$ ln -s libcs50.so.10.1.0 libcs50.so.10 $ ln -l .... libcs50.a .... libcs50.so -> libcs50.so.10.1.0 .... libcs50.so.10 -> libcs50.so.10.1.0 .... libcs50.so.10.1.0 4. Add needed environment variables
$ export LIBRARY_PATH="/data/data/com.termux/files/usr/local/lib" $ export LD_LIBRARY_PATH="/data/data/com.termux/files/usr/local/lib" You'll probably want to add these to your shell environment.
5. Run test C code
$ cd <unzip_directory>/tests $ cc -lcs50 hackerrank.c $ ./a.out Message here: <type stuff> hello, <type stuff output> $ Always double check your environment variables with the export command if you are having problems compiling or running.
$ export ... ... declare -x LIBRARY_PATH="/data/data/com.termux/files/usr/local/lib" declare -x LD_LIBRARY_PATH="/data/data/com.termux/files/usr/local/lib" ... ...