+# Helper to populate a list (_items) with a label when conditions (the remaining
+# args) are satisfied
+function(_add_if label)
+ # TODO need to disable policy CMP0054 (CMake 3.1) to allow this indirection
+ if(${ARGN})
+ set(_items ${_items} "${label}" PARENT_SCOPE)
+ endif()
+endfunction()
+
+# Clear list and try to detect available features
+set(_items)
+_add_if("WinSSL" SSL_ENABLED AND USE_WINDOWS_SSPI)
+_add_if("OpenSSL" SSL_ENABLED AND USE_OPENSSL)
+_add_if("DarwinSSL" SSL_ENABLED AND USE_DARWINSSL)
+_add_if("mbedTLS" SSL_ENABLED AND USE_MBEDTLS)
+_add_if("IPv6" ENABLE_IPV6)
+_add_if("unix-sockets" USE_UNIX_SOCKETS)
+_add_if("libz" HAVE_LIBZ)
+_add_if("AsynchDNS" USE_ARES OR USE_THREADS_POSIX OR USE_THREADS_WIN32)
+_add_if("IDN" HAVE_LIBIDN2)
+_add_if("Largefile" (CURL_SIZEOF_CURL_OFF_T GREATER 4) AND
+ ((SIZEOF_OFF_T GREATER 4) OR USE_WIN32_LARGE_FILES))
+# TODO SSP1 (WinSSL) check is missing
+_add_if("SSPI" USE_WINDOWS_SSPI)
+_add_if("GSS-API" HAVE_GSSAPI)
+# TODO SSP1 missing for SPNEGO
+_add_if("SPNEGO" NOT CURL_DISABLE_CRYPTO_AUTH AND
+ (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
+_add_if("Kerberos" NOT CURL_DISABLE_CRYPTO_AUTH AND
+ (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
+# NTLM support requires crypto function adaptions from various SSL libs
+# TODO alternative SSL libs tests for SSP1, GNUTLS, NSS
+if(NOT CURL_DISABLE_CRYPTO_AUTH AND (USE_OPENSSL OR USE_WINDOWS_SSPI OR USE_DARWINSSL OR USE_MBEDTLS))
+ _add_if("NTLM" 1)
+ # TODO missing option (autoconf: --enable-ntlm-wb)
+ _add_if("NTLM_WB" NOT CURL_DISABLE_HTTP AND NTLM_WB_ENABLED)
+endif()
+# TODO missing option (--enable-tls-srp), depends on GNUTLS_SRP/OPENSSL_SRP
+_add_if("TLS-SRP" USE_TLS_SRP)
+# TODO option --with-nghttp2 tests for nghttp2 lib and nghttp2/nghttp2.h header
+_add_if("HTTP2" USE_NGHTTP2)
+string(REPLACE ";" " " SUPPORT_FEATURES "${_items}")
+message(STATUS "Enabled features: ${SUPPORT_FEATURES}")
+
+# Clear list and try to detect available protocols
+set(_items)
+_add_if("HTTP" NOT CURL_DISABLE_HTTP)
+_add_if("HTTPS" NOT CURL_DISABLE_HTTP AND SSL_ENABLED)
+_add_if("FTP" NOT CURL_DISABLE_FTP)
+_add_if("FTPS" NOT CURL_DISABLE_FTP AND SSL_ENABLED)
+_add_if("FILE" NOT CURL_DISABLE_FILE)
+_add_if("TELNET" NOT CURL_DISABLE_TELNET)
+_add_if("LDAP" NOT CURL_DISABLE_LDAP)
+# CURL_DISABLE_LDAP implies CURL_DISABLE_LDAPS
+# TODO check HAVE_LDAP_SSL (in autoconf this is enabled with --enable-ldaps)
+_add_if("LDAPS" NOT CURL_DISABLE_LDAPS AND
+ ((USE_OPENLDAP AND SSL_ENABLED) OR
+ (NOT USE_OPENLDAP AND HAVE_LDAP_SSL)))
+_add_if("DICT" NOT CURL_DISABLE_DICT)
+_add_if("TFTP" NOT CURL_DISABLE_TFTP)
+_add_if("GOPHER" NOT CURL_DISABLE_GOPHER)
+_add_if("POP3" NOT CURL_DISABLE_POP3)
+_add_if("POP3S" NOT CURL_DISABLE_POP3 AND SSL_ENABLED)
+_add_if("IMAP" NOT CURL_DISABLE_IMAP)
+_add_if("IMAPS" NOT CURL_DISABLE_IMAP AND SSL_ENABLED)
+_add_if("SMTP" NOT CURL_DISABLE_SMTP)
+_add_if("SMTPS" NOT CURL_DISABLE_SMTP AND SSL_ENABLED)
+_add_if("SCP" USE_LIBSSH2)
+_add_if("SFTP" USE_LIBSSH2)
+_add_if("RTSP" NOT CURL_DISABLE_RTSP)
+_add_if("RTMP" USE_LIBRTMP)
+list(SORT _items)
+string(REPLACE ";" " " SUPPORT_PROTOCOLS "${_items}")
+message(STATUS "Enabled protocols: ${SUPPORT_PROTOCOLS}")
+
+# curl-config needs the following options to be set.
+set(CC "${CMAKE_C_COMPILER}")
+# TODO probably put a -D... options here?
+set(CONFIGURE_OPTIONS "")
+# TODO when to set "-DCURL_STATICLIB" for CPPFLAG_CURL_STATICLIB?
+set(CPPFLAG_CURL_STATICLIB "")
+set(CURLVERSION "${CURL_VERSION}")
+set(ENABLE_SHARED "yes")
+if(CURL_STATICLIB)
+ set(ENABLE_STATIC "yes")
+else()
+ set(ENABLE_STATIC "no")
+endif()
+set(exec_prefix "\${prefix}")
+set(includedir "\${prefix}/include")
+set(LDFLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
+set(LIBCURL_LIBS "")
+set(libdir "${CMAKE_INSTALL_PREFIX}/lib")
+foreach(_lib ${CMAKE_C_IMPLICIT_LINK_LIBRARIES} ${CURL_LIBS})
+ if(_lib MATCHES ".*/.*" OR _lib MATCHES "^-")
+ set(LIBCURL_LIBS "${LIBCURL_LIBS} ${_lib}")
+ else()
+ set(LIBCURL_LIBS "${LIBCURL_LIBS} -l${_lib}")
+ endif()
+endforeach()
+# "a" (Linux) or "lib" (Windows)
+string(REPLACE "." "" libext "${CMAKE_STATIC_LIBRARY_SUFFIX}")
+set(prefix "${CMAKE_INSTALL_PREFIX}")
+# Set this to "yes" to append all libraries on which -lcurl is dependent
+set(REQUIRE_LIB_DEPS "no")
+# SUPPORT_FEATURES
+# SUPPORT_PROTOCOLS
+set(VERSIONNUM "${CURL_VERSION_NUM}")
+
+# Finally generate a "curl-config" matching this config
+configure_file("${CURL_SOURCE_DIR}/curl-config.in"
+ "${CURL_BINARY_DIR}/curl-config" @ONLY)
+install(FILES "${CURL_BINARY_DIR}/curl-config"
+ DESTINATION bin
+ PERMISSIONS
+ OWNER_READ OWNER_WRITE OWNER_EXECUTE
+ GROUP_READ GROUP_EXECUTE
+ WORLD_READ WORLD_EXECUTE)
+
+# Finally generate a pkg-config file matching this config
+configure_file("${CURL_SOURCE_DIR}/libcurl.pc.in"
+ "${CURL_BINARY_DIR}/libcurl.pc" @ONLY)
+install(FILES "${CURL_BINARY_DIR}/libcurl.pc"
+ DESTINATION lib/pkgconfig)
+