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-rw-r--r--Tests/RunCMake/FindOpenSSL/version-range.cmake37
1 files changed, 37 insertions, 0 deletions
diff --git a/Tests/RunCMake/FindOpenSSL/version-range.cmake b/Tests/RunCMake/FindOpenSSL/version-range.cmake
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index 0000000..9390032
--- /dev/null
+++ b/Tests/RunCMake/FindOpenSSL/version-range.cmake
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+cmake_minimum_required (VERSION 3.19...3.20)
+
+find_package (OpenSSL REQUIRED COMPONENTS Crypto)
+# Store version without a possibly trailing letter.
+string (REGEX MATCH "^([0-9.]+)" version "${OPENSSL_VERSION}")
+
+# clean-up OpenSSL variables
+unset (OPENSSL_INCLUDE_DIR)
+unset (OPENSSL_CRYPTO_LIBRARY)
+unset (OPENSSL_CRYPTO_LIBRARIES)
+unset (OPENSSL_LIBRARIES)
+unset (OPENSSL_VERSION)
+unset (OPENSSL_FOUND)
+
+## Specify a range including current OpenSSL version
+string (REGEX MATCH "^([0-9]+)" upper_version "${version}")
+math (EXPR upper_version "${upper_version} + 1")
+
+find_package (OpenSSL 0.9...${upper_version}.0 COMPONENTS Crypto)
+if (NOT OPENSSL_FOUND)
+ message (FATAL_ERROR "Failed to find OpenSSL with version range 0.9...${upper_version}.0")
+endif()
+
+# clean-up OpenSSL variables
+unset (OPENSSL_INCLUDE_DIR)
+unset (OPENSSL_CRYPTO_LIBRARY)
+unset (OPENSSL_CRYPTO_LIBRARIES)
+unset (OPENSSL_LIBRARIES)
+unset (OPENSSL_VERSION)
+unset (OPENSSL_FOUND)
+
+## Specify a range excluding current OpenSSL version
+set (range 0.9...<${version})
+find_package (OpenSSL ${range} COMPONENTS Crypto)
+if (OPENSSL_FOUND)
+ message (FATAL_ERROR "Unexpectedly find OpenSSL with version range ${range}")
+endif()