From 0f5f0d65a05ff8f878122f3a360ce814b2499b8d Mon Sep 17 00:00:00 2001
From: Johannes Stoelp <johannes.stoelp@gmail.com>
Date: Sun, 2 Jul 2023 21:25:19 +0200
Subject: make: add patsubst example

---
 src/development/make.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/development')

diff --git a/src/development/make.md b/src/development/make.md
index 1ebe98e..254a7d7 100644
--- a/src/development/make.md
+++ b/src/development/make.md
@@ -101,6 +101,15 @@ out := $(in:.o=.c)
 # => out = a.c l.a c.c
 ```
 
+### `patsubst` ([ref][make-patsubst])
+```make
+in  := a.c b.c
+out := $(patsubst %.c, build/%.o, $(in))
+# => out = build/a.o build/b.o
+
+# This is actually equivalent to $(in:%.c=build/%.o)
+```
+
 ### `filter`
 Keep strings matching a pattern in a list.
 ```make
@@ -129,3 +138,4 @@ $(realpath fname1 fname2 ..)
 ```
 
 [make-var-override]: https://www.gnu.org/software/make/manual/html_node/Overriding.html
+[make-patsubst]: https://www.gnu.org/software/make/manual/html_node/Text-Functions.html#index-patsubst-1
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