How do I capture all of my compiler's output to a file?

Question

I\'m building an opensource project from source (CPP) in Linux. This is the order:

$CFLAGS=\"-g Wall\" CXXFLAGS=\"-g Wall\" ../trunk/configure --prefix=/some         


        

Answer 1

The compiler warnings happen on stderr, not stdout, which is why you don't see them when you just redirect make somewhere else. Instead, try this if you're using Bash:

$ make &> results.txt

The & means "redirect stdout and stderr to this location". Other shells often have similar constructs.

Answer 2

In C shell - The ampersand is after the greater-than symbol

make >& filename

Answer 3

It is typically not what you want to do. You want to run your compilation in an editor that has support for reading the output of the compiler and going to the file/line char that has the problems. It works in all editors worth considering. Here is the emacs setup:

https://www.gnu.org/software/emacs/manual/html_node/emacs/Compilation.html

Answer 4

The output went to stderr. Use 2> to capture that.

$make 2> file

Answer 5

Based on an earlier reply by @dmckee

make | tee makelog.txt

This gives you real-time scrolling output while compiling, and simultaneously write to the makelog.txt file.

Answer 6

In a bourne shell:

make > my.log 2>&1

I.e. > redirects stdout, 2>&1 redirects stderr to the same place as stdout