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FindOpenSSL: Detect OpenSSL 3.0.0

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The OpenSSL versioning is changing with the upcoming 3.0.0 release.
https://www.openssl.org/blog/blog/2018/11/28/version/
Since 3.0.0, the patch letters are being dropped. The new format is:
MAJOR.MINOR.PATCH

The OPENSSL_VERSION variable can now be directly derived from the new
OPENSSL_VERSION_STR macro.
https://www.openssl.org/docs/manmaster/man3/OPENSSL_VERSION_NUMBER.html
This commit is contained in:
Vitezslav Cizek
2020-05-27 14:52:17 +02:00
committed by Brad King
parent 615129f3eb
commit 61d746e592
1 changed files with 9 additions and 0 deletions
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9
Modules/FindOpenSSL.cmake
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@@ -415,6 +415,15 @@ if(OPENSSL_INCLUDE_DIR AND EXISTS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h")
endif ()
set(OPENSSL_VERSION "${OPENSSL_VERSION_MAJOR}.${OPENSSL_VERSION_MINOR}.${OPENSSL_VERSION_FIX}${OPENSSL_VERSION_PATCH_STRING}")
else ()
# Since OpenSSL 3.0.0, the new version format is MAJOR.MINOR.PATCH and
# a new OPENSSL_VERSION_STR macro contains exactly that
file(STRINGS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h" OPENSSL_VERSION_STR
REGEX "^#[\t ]*define[\t ]+OPENSSL_VERSION_STR[\t ]+\"([0-9])+\.([0-9])+\.([0-9])+\".*")
string(REGEX REPLACE "^.*OPENSSL_VERSION_STR[\t ]+\"([0-9]+\.[0-9]+\.[0-9]+)\".*$"
"\\1" OPENSSL_VERSION_STR "${OPENSSL_VERSION_STR}")
set(OPENSSL_VERSION "${OPENSSL_VERSION_STR}")
endif ()
endif ()