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cmake: document OpenSSL and ngtcp2 crypto lib custom variables

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Cherry-picked from #17561

Closes #17574
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Viktor Szakats 2025-06-10 10:42:26 +02:00
parent dd4088d916
commit a7e364df81
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2 changed files with 23 additions and 10 deletions
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25
CMake/FindNGTCP2.cmake
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@ -34,23 +34,28 @@
#
# Input variables:
#
# - `NGTCP2_INCLUDE_DIR`: The ngtcp2 include directory.
# - `NGTCP2_LIBRARY`: Path to `ngtcp2` library.
# - `NGTCP2_INCLUDE_DIR`: The ngtcp2 include directory.
# - `NGTCP2_LIBRARY`: Path to `ngtcp2` library.
# - `NGTCP2_CRYPTO_BORINGSSL_LIBRARY`: Path to `ngtcp2_crypto_boringssl` library.
# - `NGTCP2_CRYPTO_GNUTLS_LIBRARY`: Path to `ngtcp2_crypto_gnutls` library.
# - `NGTCP2_CRYPTO_OSSL_LIBRARY`: Path to `ngtcp2_crypto_ossl` library.
# - `NGTCP2_CRYPTO_QUICTLS_LIBRARY`: Path to `ngtcp2_crypto_quictls` library.
# - `NGTCP2_CRYPTO_WOLFSSL_LIBRARY`: Path to `ngtcp2_crypto_wolfssl` library.
#
# Result variables:
#
# - `NGTCP2_FOUND`: System has ngtcp2.
# - `NGTCP2_INCLUDE_DIRS`: The ngtcp2 include directories.
# - `NGTCP2_LIBRARIES`: The ngtcp2 library names.
# - `NGTCP2_LIBRARY_DIRS`: The ngtcp2 library directories.
# - `NGTCP2_PC_REQUIRES`: The ngtcp2 pkg-config packages.
# - `NGTCP2_CFLAGS`: Required compiler flags.
# - `NGTCP2_VERSION`: Version of ngtcp2.
# - `NGTCP2_FOUND`: System has ngtcp2.
# - `NGTCP2_INCLUDE_DIRS`: The ngtcp2 include directories.
# - `NGTCP2_LIBRARIES`: The ngtcp2 library names.
# - `NGTCP2_LIBRARY_DIRS`: The ngtcp2 library directories.
# - `NGTCP2_PC_REQUIRES`: The ngtcp2 pkg-config packages.
# - `NGTCP2_CFLAGS`: Required compiler flags.
# - `NGTCP2_VERSION`: Version of ngtcp2.
if(NGTCP2_FIND_COMPONENTS)
set(_ngtcp2_crypto_backend "")
foreach(_component IN LISTS NGTCP2_FIND_COMPONENTS)
if(_component MATCHES "^(BoringSSL|quictls|wolfSSL|GnuTLS|ossl)")
if(_component MATCHES "^(BoringSSL|GnuTLS|ossl|quictls|wolfSSL)")
if(_ngtcp2_crypto_backend)
message(FATAL_ERROR "NGTCP2: Only one crypto library can be selected")
endif()