Home > Exit Code > Makefile Check Exit Code

Makefile Check Exit Code

Contents

This means that attempting to read from standard input will usually be a fatal error (a `Broken pipe' signal) for most child processes if there are several. So generally the right thing to do is to delete the target file if the recipe fails after beginning to change the file. share|improve this answer answered Mar 9 '15 at 12:39 Giel Berkers 41134 It prints the error and continues the execution, which was desired for my case. –worldsayshi Feb 29 What to do about a player who takes risks and dies (without consequence)? http://0pacity.com/exit-code/bash-exit-code-check.html

This is done if the target file's last-modification time has changed since make first checked it. It would be very bad for personal choices like this to affect the functioning of makefiles. One of the easiest is use of the shell ‘-e' set/command line arg. Next: Interrupts, Previous: Parallel, Up: Recipes [Contents][Index] current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. https://www.gnu.org/s/make/manual/html_node/Errors.html

Makefile Check Exit Code

and by the way, the makefile is using /usr/local/bin/ginstall (not sure if that helps) gcc this is the command i'm running in the source directory: fakeroot gmake clean all install buildpkg At what point is brevity no longer a virtue? All examples are with rm, but are applicable to any other command you need to ignore errors from (i.e. Is it a security vulnerability if the addresses of university students are exposed?

Is there a reason why similar or the same musical instruments would develop? See the next section. If you use a special version of make to run the top-level makefile, the same special version will be executed for recursive invocations. Makefile Error Handling If there is nothing looking like an integer after the `-j' option, there is no limit on the number of job slots.

share|improve this answer answered Apr 19 '10 at 19:22 Brian Carlton 3,91742444 add a comment| up vote 9 down vote make -k (or --keep-going on gnumake) will do what you are See section The Variable MAKEFILES. is zero and || is proceed in case of a non-zero return value. http://stackoverflow.com/questions/2670130/make-how-to-continue-after-a-command-fails This is the case when you are the owner of a file with readonly permissions for owner (-r--------).

When the shell is `/bin/sh', a `#' starts a comment that extends to the end of the line. Make Error 1 Ignored list of files based on permission Digital Hardness of Integers Sort an array of integers into odd, then even Node modules have 755 permissions, what permissions should I set so that The value of MAKEFILES is a whitespace-separated list of file names. If you give `-j' with no numeric argument, meaning to run as many jobs as possible in parallel, this is passed down, since multiple infinities are no more than one.

Makefile Exit On Error

For example, after an error in compiling one object file, `make -k' will continue compiling other object files even though it already knows that linking them will be impossible. click for more info update: Following and expanding on the accepted answer, below is how it should be written: failure: @-/bin/false && ([ $$? -eq 0 ] && echo "success!") || echo "failure!" success: @-/bin/true Makefile Check Exit Code Use of line continuation to join multi-line commands within a makefile. Makefile Catch Error When file existence is not mandatory $(if ) conditions and extra target rules can conditionally copy when needed.

In particular, make invokes a separate subshell for each line. have a peek at these guys This is why Emacs' compile command passes the `-k' flag by default. The shell builtin true could be used instead and would be more readable. –Dennis Williamson Feb 10 '14 at 15:46 More about : – What Is the Purpose of The ‘-k’ option says that the real purpose is to test as many of the changes made in the program as possible, perhaps to find several independent problems so that you Recipe For Target Failed Makefile

A rule in the makefile for the special target .SILENT without dependencies has the same effect (see section Special Built-in Target Names). .SILENT is essentially obsolete since `@' is more flexible. Why do shampoo ingredient labels feature the the term "Aqua"? Any variable given in an unexport directive will still not be exported. check over here Can time travel make us rich through trading, and is this a problem?

Command Echoing Normally make prints each command line before it is executed. Make Exit Code You may be wondering why you would want to define a command string that does nothing. Weird CentOS server behavior time zones Keeping windshield ice-free without heater Does the Ōura ring measure heart rate well enough to assess HRV?

Thus, the following is equivalent to the preceding example: foo : bar/lose cd bar; \ gobble lose > ../foo The program used as the shell is taken from the variable SHELL.

in the makefile, i have a set of "make installs" that runs in specific directories. how can i get the makefile to keep running despite the errors it comes across as a result of my newly inputted commands? Is there a reason why similar or the same musical instruments would develop? Makefile Return Value What does "went through the guards of the broadsword" mean?

This is because the SHELL environment variable is used to specify your personal choice of shell program for interactive use. Go to the first, previous, next, last section, table of contents. Forum Operations by The UNIX and Linux Forums Joey Armstrong's blog Blogging at mozilla Skip to content Home ← Build system tools: make-makefile, file generation An interesting view outside this morning this content This site is not affiliated with Linus Torvalds or The Open Group in any way.

So this works fine failure: @/bin/false && echo "success!" || echo "failure!" success: @/bin/true && echo "success!" || echo "failure!" The opposite happens: If you wanna do your own message and Some reasons why you might do this are that the target is updated in some atomic fashion, or exists only to record a modification-time (its contents do not matter), or must How does Decomission (and Revolt) work with multiple permanents leaving the battlefield? does not contain the exit status of the previous failed command, it contains whatever the default value is for $?

For your problem something like this should work [email protected][ -e "foo.o" ] && mv -f foo.o ../baz share|improve this answer answered Jun 29 '10 at 18:42 Charles 2,57912139 i Just add the -f flag to rm and it'll no longer fail when trying to delete files which don't exist. These variables are defined in the sub-make as defaults, but do not override what is specified in the makefile used by the sub-make makefile unless you use the `-e' switch (see Another problem is that two processes cannot both take input from the same device; so to make sure that only one command tries to take input from the terminal at once,

Errors shouldn't be ignored, but it's good to know the options. –brian_o Sep 4 '15 at 16:14 | show 1 more comment up vote 4 down vote To get make to Does anyone know what that blue thing is? The Ctrl-c kills the compiler, resulting in an incomplete file whose last-modification time is newer than the source file `foo.c'. Stop1gnu make, vpath, extra o file directory, confusion0why is my liquidsoap make install command failing Hot Network Questions Why are there no Imperial KX-series Security Droids in the original trilogy?

Not the answer you're looking for? The `-' is discarded before the command is passed to the shell for execution. To utilize make's exit status in a case like this, execute make from a script: #!/bin/bash make ([ $? -eq 0 ] && echo "success!") || echo "failure!" And have your In place of using hyphens to code around a set of conditions remove them outright and use an external shell script to do the right thing.

up vote 24 down vote favorite 3 The command $ make all gives errors such as rm: cannot remove '.lambda': No such file or directory so it stops. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed This is why Emacs’ compile command passes the ‘-k’ flag by default.