linux from - In Unix, can I run 'make' in a directory without cd'ing to that directory first?




another output (5)

In Unix, can I run 'make' in a directory without cd'ing to that directory first?


Answers

As noted in other answers, make(1) has a -C option for this; several commands have similar options (e.g. tar). It is useful to note that for other commands which lack such options the following can be used:

(cd /dir/path && command-to-run)

This runs the command in a sub-shell which first has its working directory changed (while leaving the working directory of the parent shell alone). Here && is used instead of ; to catch error cases where the directory can not be changed.


Also you may use:

make --directory /path/to/dir

If the reason you don't want to cd to a directory is because you need to stay in the current directory for a later task, you can use pushd and popd:

pushd ProjectDir ; make ; popd

That goes into the ProjectDir, runs make, and goes back to where you were.


makefile:

all:
    gcc -Wall -Wpedantic -std=gnu99 -g src/test.c -o build/test

run:
    ./build/test

or

run:
    ./../build/test

etc.


Also worth mentioning are

  1. HPCToolkit (http://hpctoolkit.org/) - Open-source, works for parallel programs and has a GUI with which to look at the results multiple ways
  2. Intel VTune (https://software.intel.com/en-us/vtune) - If you have intel compilers this is very good
  3. TAU (http://www.cs.uoregon.edu/research/tau/home.php)

I have used HPCToolkit and VTune and they are very effective at finding the long pole in the tent and do not need your code to be recompiled (except that you have to use -g -O or RelWithDebInfo type build in CMake to get meaningful output). I have heard TAU is similar in capabilities.







linux unix makefile