From 82ba818ff456bcd6d56a06226e3f27e98fbb55c3 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Thu, 14 Aug 2025 22:58:58 -0500 Subject: removing all downloaded devdocs files --- devdocs/gnu_make/testing-flags.html | 14 -------------- 1 file changed, 14 deletions(-) delete mode 100644 devdocs/gnu_make/testing-flags.html (limited to 'devdocs/gnu_make/testing-flags.html') diff --git a/devdocs/gnu_make/testing-flags.html b/devdocs/gnu_make/testing-flags.html deleted file mode 100644 index a87777df..00000000 --- a/devdocs/gnu_make/testing-flags.html +++ /dev/null @@ -1,14 +0,0 @@ -

Conditionals that Test Flags

You can write a conditional that tests make command flags such as ‘-t’ by using the variable MAKEFLAGS together with the findstring function (see Functions for String Substitution and Analysis). This is useful when touch is not enough to make a file appear up to date.

Recall that MAKEFLAGS will put all single-letter options (such as ‘-t’) into the first word, and that word will be empty if no single-letter options were given. To work with this, it’s helpful to add a value at the start to ensure there’s a word: for example ‘-$(MAKEFLAGS)’.

The findstring function determines whether one string appears as a substring of another. If you want to test for the ‘-t’ flag, use ‘t’ as the first string and the first word of MAKEFLAGS as the other.

For example, here is how to arrange to use ‘ranlib -t’ to finish marking an archive file up to date: 

archive.a: …
-ifneq (,$(findstring t,$(word 1,-$(MAKEFLAGS))))
-        +touch archive.a
-        +ranlib -t archive.a
-else
-        ranlib archive.a
-endif
-
-

The ‘+’ prefix marks those recipe lines as “recursive” so that they will be executed despite use of the ‘-t’ flag. See Recursive Use of make.

-

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Licensed under the GNU Free Documentation License.
- https://www.gnu.org/software/make/manual/html_node/Testing-Flags.html -

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