Using makefile wildcard command for file names with spaces

Question

I have a makefile that I use to compress pictures:

src=$(wildcard Photos/*.jpg) $(wildcard Photos/*.JPG)
out=$(subst Photos,Compressed,$(src))

all : $(out)
         


        

Answer 1

Generally having spaces in file names is a bad idea with make, but for your case this may work:

src=$(shell find Photos/ -iname '*.JPG' | sed 's/ /\\ /g')

out=$(subst Photos,Compressed,$(src))

all : $(out)

Compressed:
  @mkdir Compressed

Compressed/%: Photos/% Compressed
  @echo "Compressing $<"
  @convert "$<" -scale 20% "$@"