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Makefile check if directory not exists. I tried this but it didn't work .
Makefile check if directory not exists. In a proper Makefile, this would typically be formatted with proper indentation for readability. GitHub Gist: instantly share code, notes, and snippets. What's wrong with it? if [ -a myApp ] then rm m. Jul 22, 2016 · This doesn't really seem like the best solution, so is there a way to check if a directory doesn't exist before the build in a make file, and create it if so? This would allow for the object dir not to be present when the make command is called, and created afterwards. echo “File does not exist” prints “File does not exist” if the file doesn’t exist. In his answer @Grundlefleck explains how to check whether a directory exists or not. Jan 25, 2017 · I had a case where I wanted to define a variable based on the test whether a directory exists or not at the top-most level of the Makefile where the approaches described above don't work. I use this code but I receive errors. If the list is empty, then we claim the directory does not exist and we could put our long-running download in there. I mainly use mingw/msys but would like something that works across other shells/systems too. Here is the else @echo "Skipping download because directory already exists. I tried this but it didn't work Makefile check if folder and/or file exists Asked 6 years, 8 months ago Modified 3 years, 4 months ago Viewed 16k times In the clean section of my Makefile I am trying to check if the file exists before deleting permanently. Makefiles should really be described in terms of files as much as possible; in your case, check needs file_name and file_name1, so that’s what should be specified: Jun 6, 2025 · echo “File exists”; prints “File exists” if the file exists. The entire command is actually a single shell command (a Bash if -statement). " endif This leverages wildcard to get back a space-separated list of files that match the supplied pattern, which we set to $(DIR_TO_CHECK_FOR) in this case. I tried this but it didn't work Mar 11, 2016 · test if directory exists in a makefile. Sep 19, 2008 · 9 +5 Q: how to check if a directory exists in a makefile I need to generate a directory in my makefile and I would like to not get the "directory already exists error" over and over even though I can easily ignore it. I tried some to use this inside a makefile as follow: Aug 11, 2020 · Thus if file_name exists when the Makefile is read, the check target will run echo "Hello exists", otherwise it won’t. Hi, I'm having trouble with a makefile I'm trying to write that uses a bash command to test for the existence of a certain directory. vtzaxtebtyhjclwvzdfsygedevpecnugivrlfrreidxpcrikcjl