Gnumake All Returned Error 2
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in the recipe is executed in a new shell; after the last line is finished, the rule is finished. If there is an error (the exit status is nonzero), make gives up on the current rule, and perhaps on all rules. Sometimes make error codes the failure of a certain recipe line does not indicate a problem. For example, you makefile error 2 may use the mkdir command to ensure that a directory exists. If the directory already exists, mkdir will report an error, but you makefile error 1 probably want make to continue regardless. To ignore errors in a recipe line, write a ‘-’ at the beginning of the line’s text (after the initial tab). The ‘-’ is discarded before the line is passed to the shell
Makefile Recipe For Target Failed
for execution. For example, clean: -rm -f *.o This causes make to continue even if rm is unable to remove a file. When you run make with the ‘-i’ or ‘--ignore-errors’ flag, errors are ignored in all recipes of all rules. A rule in the makefile for the special target .IGNORE has the same effect, if there are no prerequisites. These ways of ignoring errors are obsolete because ‘-’ is more flexible. When errors are to be makefile exit on error ignored, because of either a ‘-’ or the ‘-i’ flag, make treats an error return just like success, except that it prints out a message that tells you the status code the shell exited with, and says that the error has been ignored. When an error happens that make has not been told to ignore, it implies that the current target cannot be correctly remade, and neither can any other that depends on it either directly or indirectly. No further recipes will be executed for these targets, since their preconditions have not been achieved. Normally make gives up immediately in this circumstance, returning a nonzero status. However, if the ‘-k’ or ‘--keep-going’ flag is specified, make continues to consider the other prerequisites of the pending targets, remaking them if necessary, before it gives up and returns nonzero status. 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. See Summary of Options. The usual behavior assumes that your purpose is to get the specified targets up to date; once make learns that this is impossible, it might as well report the failure immediately. 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 i
to fix them. Sometimes make errors are not fatal, especially in the presence of a - prefix on a recipe line, gnu make error or the -k command line option. Errors that are fatal are prefixed
Makefile Stop On Error
with the string ***. Error messages are all either prefixed with the name of the program (usually ‘make’),
Recipe Commences Before First Target. Stop.
or, if the error is found in a makefile, the name of the file and line number containing the problem. In the table below, these common prefixes are left off. https://www.gnu.org/s/make/manual/html_node/Errors.html ‘[foo] Error NN’ ‘[foo] signal description’ These errors are not really make errors at all. They mean that a program that make invoked as part of a recipe returned a non-0 error code (‘Error NN’), which make interprets as failure, or it exited in some other abnormal fashion (with a signal of some type). See Errors in Recipes. If no https://www.gnu.org/s/make/manual/html_node/Error-Messages.html *** is attached to the message, then the sub-process failed but the rule in the makefile was prefixed with the - special character, so make ignored the error. ‘missing separator. Stop.’ ‘missing separator (did you mean TAB instead of 8 spaces?). Stop.’ This means that make could not understand much of anything about the makefile line it just read. GNU make looks for various separators (:, =, recipe prefix characters, etc.) to indicate what kind of line it’s parsing. This message means it couldn’t find a valid one. One of the most common reasons for this message is that you (or perhaps your oh-so-helpful editor, as is the case with many MS-Windows editors) have attempted to indent your recipe lines with spaces instead of a tab character. In this case, make will use the second form of the error above. Remember that every line in the recipe must begin with a tab character (unless you set .RECIPEPREFIX; see Special Variables). Eight spaces do not count. See Rule Syntax. ‘recipe commences before first target. Stop.’ ‘missing rule before recipe. Stop.&rsq
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company http://stackoverflow.com/questions/1864385/how-to-force-an-error-in-a-gnumake-file Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to force an error in a gnumake file up vote 34 down vote favorite 6 I want to detect a condition error 2 in my makefile where a tool is the wrong version and force the make to fail with an error message indicating the item is not the right version. Can anyone give an example of doing this? I tried the following but it is not the right syntax: ifeq "$(shell svnversion --version | sed s/[^0-9\.]*://)" "1.4" $error("Bad svnversion v1.4, please install v1.6") endif Thanks. makefile gnu-make share|improve this question asked Dec 8 '09 at 3:31 WilliamKF gnumake all returned 10.9k33108208 You might want to check this against 1.4. I have 1.4.4 installed and the --version output contains a lot more than the version number. Try something like ifeq "$(shell svn --version | sed -nE -e '/version/s/^.*([0-9]+\.[0-9]\+)\..*$$/\1/p')" "1.4" instead –D.Shawley Dec 8 '09 at 4:05 My sed does not accept the -E: "sed: invalid option -- E" –WilliamKF Dec 8 '09 at 4:09 1 Does it have to be make? I tend to write these tests in configure. –Dirk Eddelbuettel Dec 8 '09 at 4:15 Ah.. then change the match portion of the expression to ^.*\([0-9][0-9]*\.[0-9][0-9]*\)\..*$$. The -E would enable extended regular expressions which allow for more compact expressions amongst other goodies. –D.Shawley Dec 8 '09 at 12:04 I'd recommend quoting the regular expression for the shell too. Just to be safe. I.e., ifeq ($(shell svnversion --version | sed '