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cmake: document OpenSSL and ngtcp2 crypto lib custom variables

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Cherry-picked from #17561

Closes #17574
This commit is contained in:
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()

8
docs/INSTALL-CMAKE.md
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@ -386,6 +386,9 @@ Details via CMake
## Dependency options (via CMake)
- `OPENSSL_ROOT_DIR`: Set this variable to the root installation of OpenSSL (and forks).
- `OPENSSL_INCLUDE_DIR`: The OpenSSL include directory.
- `OPENSSL_SSL_LIBRARY`: Path to `ssl` library. With MSVC, CMake uses variables `SSL_EAY_DEBUG`/`SSL_EAY_RELEASE` instead.
- `OPENSSL_CRYPTO_LIBRARY`: Path to `crypto` library. With MSVC, CMake uses variables `LIB_EAY_DEBUG`/`LIB_EAY_RELEASE` instead.
- `OPENSSL_USE_STATIC_LIBS`: Look for static OpenSSL libraries.
- `ZLIB_INCLUDE_DIR`: The zlib include directory.
- `ZLIB_LIBRARY`: Path to `zlib` library.
@ -440,6 +443,11 @@ Details via CMake
- `NGHTTP3_LIBRARY`: Path to `nghttp3` 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.
- `NETTLE_INCLUDE_DIR`: The nettle include directory.
- `NETTLE_LIBRARY`: Path to `nettle` library.
- `PTHREAD_LIBRARY`: Path to `pthread` library. (for Rustls)