1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
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()
|
