Makefile shell parenthesis

[deehuck]

Hi,
In a Makefile I would like to know how to escape parenthesis inside a shell call like this:

GL_LIBS := $(shell case `uname` in "Darwin") echo "-framework OpenGL";; "Linux") echo "-lGL";; esac)

Thanks

[deehuck]

found the answer, for someone else interested by the answer:

CMD := case `uname` in "Darwin") echo "-framework OpenGL";; "Linux") echo "-lGL";; esac
GL_LIBS := $(shell $(CMD))