Hello, Brian Dessent, Thank you Brian. Although I'm not the questioner, I have to appreciate that your answer is very complete and understanding.
======== 2007-10-23 08:51:49 You wrote: ======== k wayne wrote: > someTarget: dependencies > <tab > if [ "`/bin/sh -c 'myCommand --options -asdf'`" -eq "5" ]; then fail > fi A couple of things here. When you say "return value", do you mean the exit status code (an integer that is typically zero for success, otherwise failure) or do you mean some text that the process outputs to stdout? The shell backtick captures the latter, whereas the former is stored in the shell value $?. Also, explicitly calling the shell should not be necessary as make does this for you. How about just: someTarget: dependencies myCommand --options -asdf; \ if [ $$? -eq 5 ]; then \ echo "it was 5"; \ else \ echo "it wasn't 5"; \ fi Note: If you want to access shell variables like $? you have to double-$ because otherwise make would try to expand them before passing the command to the shell. Also note that you have to write shell commands as if they were all one single command (so that make invokes them all with one call to "sh -c 'everything'") but that doesn't mean you have to stuff it all on one physical line. Finally note that make will take the final exit code of the last command executed in the composite shell fragment as the status for the entire target rule, so make sure to propagate a success/failure to make as appropriate. Brian _______________________________________________ Help-make mailing list Help-make@gnu.org http://lists.gnu.org/mailman/listinfo/help-make = = = = = = = = = = = = = = = = = = = = = = Best Regards Chen Jun (陈军) [EMAIL PROTECTED] 2007-10-23
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