GNU Make documentation example error

[Niko's ProtonMail Account]

Dear GNU maintainers,

I think there may be a mistake in the section “5.8 Defining Canned Recipes” of 
the GNU Make manual: 
https://www.gnu.org/software/make/manual/make.html#Canned-Recipes.
The examples show the “define” directive followed by an equals sign (“=“), 
however for me it only works once I remove the equals sign as shown in the 
section on defining multi-line variables: 
https://www.gnu.org/software/make/manual/make.html#Multi_002dLine.
Interestingly, even that section contains an example where the equals sign is 
used (at the bottom of the section) and it likewise only works once I remove 
the equals sign.

Best,
Nikolai