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CPP-991 Add extraction of version string for OpenSSL 3.x #556

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merged 1 commit into from
Sep 19, 2023
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CPP-991 Add extraction of version string for OpenSSL 3.x #556

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19 changes: 19 additions & 0 deletions cmake/FindOpenSSL.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -377,6 +377,25 @@ 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}")

# Setting OPENSSL_VERSION_MAJOR OPENSSL_VERSION_MINOR and OPENSSL_VERSION_FIX
string(REGEX MATCHALL "([0-9])+" OPENSSL_VERSION_NUMBER "${OPENSSL_VERSION}")
list(POP_FRONT OPENSSL_VERSION_NUMBER
OPENSSL_VERSION_MAJOR
OPENSSL_VERSION_MINOR
OPENSSL_VERSION_FIX)

unset(OPENSSL_VERSION_NUMBER)
unset(OPENSSL_VERSION_STR)
endif ()
endif ()

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