CMake将字符串解释为变量

Question

我正在寻找一种方法将字符串解释为cmake中的变量名。

假设：

set(MY_SECRET_VAR "foo")

# later only the name of the variable is known.
set(THE_NAME "MY_SECRET_VAR")

# Now i'm looking for a way to get the value "foo" from the name
# something like:
set(THE_VALUE "${THE_NAME}")

# THE_VALUE should be "foo"

Answer 1

第二级展开：

set(THE_VALUE "${${THE_NAME}}")