[CMake] Introduce "llvm_add_library(SHARED STATIC)" to build both shared lib and static lib simulataneously.
llvm_add_library(foo SHARED STATIC
DEPENDS <dependent targets...>
LINK_LIBS <required libraries...>
)
It generates both foo (foo.so) and foo_static(foo.a) and both of them depend on DEPENDS and LINK_LIBS.
Then, also obj.foo is generated. obj.foo depends on DEPENDS, but doesn't depend on LINK_LIBS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201854
91177308-0d34-0410-b5e6-
96231b3b80d8