Makefile logging which stops at first error and display the error

Question

I am looking for a way to log compilation errors within a makefile but here is my problem:

the line without log function is as follows:

$(OBJ_PATH)/%.obj: $(SRC_PATH_ASW)/%.c
    @echo -Compiling $<:
    $(CC) $(INCLUDE_ASW) $(INCLUDE_ASW_AUTO) $(INCLUDE_BSW) -c $< $(CFLAGS)

I tried to redirect stderr and/or stdout in a log file using the following command

$(OBJ_PATH)/%.obj: $(SRC_PATH_ASW)/%.c
    @echo -Compiling $<:
    $(CC) $(INCLUDE_ASW) $(INCLUDE_ASW_AUTO) $(INCLUDE_BSW) -c $< $(CFLAGS)  > $@.log

This solution won't display the message to the terminal but only within the log file. (i tried all possible kind of redirection without success)

I also tried with tee but the problem is different, in fact the makefile won't stop at first error since the tee command return code will always be successful.

$(OBJ_PATH)/%.obj: $(SRC_PATH_ASW)/%.c
    @echo -Compiling $<:
    $(CC) $(INCLUDE_ASW) $(INCLUDE_ASW_AUTO) $(INCLUDE_BSW) -c $< $(CFLAGS) | tee $@.log

What I would like if possible is to be able to log compilation result into a file as well as disply it but that the makefile stops at first compilation error and does not continue with other files compilation.

Thank you for your support.

Duplicate: see http://stackoverflow.com/questions/1221833/pipe-output-and-capture-exit-status-in-bash — blackghost, Mar 09 '17 at 18:08

score 0 · Answer 1 · answered Mar 09 '17 at 16:22

0

I've often wanted to do this too and the solution I came up with was to create this short shell script and alias make to run that instead.

#!/bin/sh

make $* | tee make.log

answered Mar 09 '17 at 16:22

Chris Turner

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score 0 · Accepted Answer · answered Mar 09 '17 at 18:02

You can use set -o pipefail or PIPESTATUS[0]

set -o pipefail; $(CC) ... | tee file.log

will return an error if the $(CC) ... or tee... commands fail. Alternatively if you just do

$(CC) ... | tee file.log

Then ${PIPESTATUS[0]} will be the error code of the first command ($(CC)...) (you can tack an exit ${PIPESTATUS[0]} at the end of the line for example.

Makefile logging which stops at first error and display the error

2 Answers2