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POHow to run some commands globally in a Gnu Make file
 

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  1. POHow to run some commands globally in a Gnu Make file
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    <p>I have a gnu Makefile that collects version information through environment variables. Now, I want to do "something" globally before any target is built using the gnumake syntax. As pseudo code, this means:</p> <ul> <li>when a specified file exists, delete it</li> <li>run through an array of strings and put their value into a specified file</li> </ul> <p>I tried this:</p> <pre><code>$(shell if exist $(subst /,\,$(products)filenames.h) del /F/Q $(subst /,\,$(products)filenames.h)) $(foreach Item, $(EnvFilenames), @echo $(Item) &gt;&gt; $(subst /,\,$(products)filenames.h)) </code></pre> <p>this gives me an error:</p> <pre><code>C:\temp\Makefile.mak:72: *** missing separator. Stop. </code></pre> <p>where Line 72 is the <code>$(shell ...</code> line. If I put this in a <code>define</code> section:</p> <pre><code>define foobar $(shell if exist $(subst /,\,$(products)filenames.h) del /F/Q $(subst /,\,$(products)filenames.h)) $(foreach Item, $(EnvFilenames), @echo $(Item) &gt;&gt; $(subst /,\,$(products)filenames.h)) endef </code></pre> <p>and call this for a target, it runs fine:</p> <pre><code>$(products)$test.o : test.c $(commons) $(call foobar) $(cc) $(cflags_m) test.c -o$@ </code></pre> <p>and does what it should... but as soon as I want to call it from inside of another <code>define</code>, it fails again with a missing seperator.</p> <p>What does it mean and how can I fix it?</p> <p>Compilation takes place on a Win32 platform and does not have to be multi-platform.</p>
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