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cmake: Avoid contaminating parent project's cache with BUILD_SHARED_LIBS #1688

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11 changes: 7 additions & 4 deletions CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -33,10 +33,13 @@ set(CMAKE_C_EXTENSIONS OFF)
#=============================
# Configurable options
#=============================
option(BUILD_SHARED_LIBS "Build shared libraries." ON)
option(SECP256K1_DISABLE_SHARED "Disable shared library. Overrides BUILD_SHARED_LIBS." OFF)
if(SECP256K1_DISABLE_SHARED)
set(BUILD_SHARED_LIBS OFF)
if(PROJECT_IS_TOP_LEVEL)
option(BUILD_SHARED_LIBS "Build shared libraries." ON)
else()
option(SECP256K1_DISABLE_SHARED "Disable shared library. Overrides BUILD_SHARED_LIBS." OFF)
if(SECP256K1_DISABLE_SHARED)
set(BUILD_SHARED_LIBS OFF)
endif()
endif()

option(SECP256K1_INSTALL "Enable installation." ${PROJECT_IS_TOP_LEVEL})
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