Use conan for downloading missing external dependencies

externals/CMakeLists.txt

@@ -1,30 +1,13 @@
 # Definitions for all external bundled libraries
 
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/CMakeModules)
+list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/CMakeModules")
+list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/externals/find-modules")
 include(DownloadExternals)
 
-# pkgconfig -- it is used to find shared libraries without cmake modules on linux systems
-find_package(PkgConfig)
-if (NOT PkgConfig_FOUND)
-    function(pkg_check_modules)
-        # STUB
-    endfunction()
-endif()
-
 # Catch
 add_library(catch-single-include INTERFACE)
 target_include_directories(catch-single-include INTERFACE catch/single_include)
 
-# libfmt
-pkg_check_modules(FMT IMPORTED_TARGET GLOBAL fmt>=6.2.0)
-if (FMT_FOUND)
-    add_library(fmt::fmt ALIAS PkgConfig::FMT)
-else()
-    message(STATUS "fmt 6.2.0 or newer not found, falling back to externals")
-    add_subdirectory(fmt)
-    add_library(fmt::fmt ALIAS fmt)
-endif()
-
 # Dynarmic
 if (ARCHITECTURE_x86_64)
     set(DYNARMIC_TESTS OFF)
@@ -43,17 +26,6 @@ add_subdirectory(glad)
 # inih
 add_subdirectory(inih)
 
-# lz4
-pkg_check_modules(LIBLZ4 IMPORTED_TARGET GLOBAL liblz4>=1.8.0)
-if (LIBLZ4_FOUND)
-    add_library(lz4_static ALIAS PkgConfig::LIBLZ4)
-else()
-    message(STATUS "liblz4 1.8.0 or newer not found, falling back to externals")
-    set(LZ4_BUNDLED_MODE ON)
-    add_subdirectory(lz4/contrib/cmake_unofficial EXCLUDE_FROM_ALL)
-    target_include_directories(lz4_static INTERFACE ./lz4/lib)
-endif()
-
 # mbedtls
 add_subdirectory(mbedtls EXCLUDE_FROM_ALL)
 target_include_directories(mbedtls PUBLIC ./mbedtls/include)
@@ -66,29 +38,9 @@ target_include_directories(microprofile INTERFACE ./microprofile)
 add_library(unicorn-headers INTERFACE)
 target_include_directories(unicorn-headers INTERFACE ./unicorn/include)
 
-# Zstandard
-pkg_check_modules(LIBZSTD IMPORTED_TARGET GLOBAL libzstd>=1.3.8)
-if (LIBZSTD_FOUND)
-    add_library(libzstd_static ALIAS PkgConfig::LIBZSTD)
-else()
-    message(STATUS "libzstd 1.3.8 or newer not found, falling back to externals")
-    add_subdirectory(zstd/build/cmake EXCLUDE_FROM_ALL)
-    target_include_directories(libzstd_static INTERFACE ./zstd/lib)
-endif()
-
 # SoundTouch
 add_subdirectory(soundtouch)
 
-# Opus
-pkg_check_modules(OPUS IMPORTED_TARGET GLOBAL opus>=1.3.1)
-if (OPUS_FOUND)
-    add_library(opus ALIAS PkgConfig::OPUS)
-else()
-    message(STATUS "opus 1.3.1 or newer not found, falling back to externals")
-    add_subdirectory(opus)
-    target_include_directories(opus INTERFACE ./opus/include)
-endif()
-
 # Cubeb
 if(ENABLE_CUBEB)
     set(BUILD_TESTS OFF CACHE BOOL "")
@@ -106,37 +58,14 @@ if (ENABLE_VULKAN)
     add_subdirectory(sirit)
 endif()
 
-# zlib
-find_package(ZLIB 1.2.11)
-if (NOT ZLIB_FOUND)
-    message(STATUS "zlib 1.2.11 or newer not found, falling back to externals")
-    add_subdirectory(zlib EXCLUDE_FROM_ALL)
-    set(ZLIB_LIBRARIES z)
-endif()
-
 # libzip
-pkg_check_modules(LIBZIP IMPORTED_TARGET GLOBAL libzip>=1.5.3)
-if (LIBZIP_FOUND)
-    add_library(zip ALIAS PkgConfig::LIBZIP)
-else()
-    message(STATUS "libzip 1.5.3 or newer not found, falling back to externals")
+find_package(Libzip 1.5)
+if (NOT LIBZIP_FOUND)
+    message(STATUS "libzip 1.5 or newer not found, falling back to externals")
     add_subdirectory(libzip EXCLUDE_FROM_ALL)
 endif()
 
 if (ENABLE_WEB_SERVICE)
-    # LibreSSL
-    find_package(OpenSSL COMPONENTS Crypto SSL)
-    if (NOT OpenSSL_FOUND)
-        message(STATUS "OpenSSL not found, falling back to externals")
-        set(LIBRESSL_SKIP_INSTALL ON CACHE BOOL "")
-        add_subdirectory(libressl EXCLUDE_FROM_ALL)
-        target_include_directories(ssl INTERFACE ./libressl/include)
-        target_compile_definitions(ssl PRIVATE -DHAVE_INET_NTOP)
-        get_directory_property(OPENSSL_LIBRARIES
-            DIRECTORY libressl
-            DEFINITION OPENSSL_LIBS)
-    endif()
-
     # lurlparser
     add_subdirectory(lurlparser EXCLUDE_FROM_ALL)
 
@@ -144,9 +73,5 @@ if (ENABLE_WEB_SERVICE)
     add_library(httplib INTERFACE)
     target_include_directories(httplib INTERFACE ./httplib)
     target_compile_definitions(httplib INTERFACE -DCPPHTTPLIB_OPENSSL_SUPPORT)
-    target_link_libraries(httplib INTERFACE ${OPENSSL_LIBRARIES})
-
-    # JSON
-    add_library(json-headers INTERFACE)
-    target_include_directories(json-headers INTERFACE ./json)
+    target_link_libraries(httplib INTERFACE OpenSSL::SSL OpenSSL::Crypto)
 endif()

externals/find-modules/FindIconv.cmake

@@ -1,41 +0,0 @@
-
-find_package(PkgConfig QUIET)
-pkg_check_modules(PC_iconv QUIET iconv)
-
-find_path(iconv_INCLUDE_DIR
-  NAMES iconv.h
-  PATHS ${PC_iconv_INCLUDE_DIRS} ${CONAN_INCLUDE_DIRS_LIBICONV}
-)
-find_library(iconv_LIBRARY
-  NAMES iconv
-  PATHS ${PC_iconv_LIBRARY_DIRS} ${CONAN_LIB_DIRS_LIBICONV}
-)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(iconv
-  FOUND_VAR iconv_FOUND
-  REQUIRED_VARS
-    iconv_LIBRARY
-    iconv_INCLUDE_DIR
-  VERSION_VAR iconv_VERSION
-)
-
-if(iconv_FOUND)
-  set(iconv_LIBRARIES ${iconv_LIBRARY})
-  set(iconv_INCLUDE_DIRS ${iconv_INCLUDE_DIR})
-  set(iconv_DEFINITIONS ${PC_iconv_CFLAGS_OTHER})
-endif()
-
-if(iconv_FOUND AND NOT TARGET iconv::iconv)
-  add_library(iconv::iconv UNKNOWN IMPORTED)
-  set_target_properties(iconv::iconv PROPERTIES
-    IMPORTED_LOCATION "${iconv_LIBRARY}"
-    INTERFACE_COMPILE_OPTIONS "${PC_iconv_CFLAGS_OTHER}"
-    INTERFACE_INCLUDE_DIRECTORIES "${iconv_INCLUDE_DIR}"
-  )
-endif()
-
-mark_as_advanced(
-    iconv_INCLUDE_DIR
-    iconv_LIBRARY
-)

externals/find-modules/FindLIBZIP.cmake

@@ -1,41 +0,0 @@
-
-find_package(PkgConfig QUIET)
-pkg_check_modules(PC_libzip QUIET libzip)
-
-find_path(libzip_INCLUDE_DIR
-  NAMES zip.h
-  PATHS ${PC_libzip_INCLUDE_DIRS}
-)
-find_library(libzip_LIBRARY
-  NAMES libzip
-  PATHS ${PC_libzip_LIBRARY_DIRS}
-)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(libzip
-  FOUND_VAR libzip_FOUND
-  REQUIRED_VARS
-    libzip_LIBRARY
-    libzip_INCLUDE_DIR
-  VERSION_VAR libzip_VERSION
-)
-
-if(libzip_FOUND)
-  set(libzip_LIBRARIES ${libzip_LIBRARY})
-  set(libzip_INCLUDE_DIRS ${libzip_INCLUDE_DIR})
-  set(libzip_DEFINITIONS ${PC_libzip_CFLAGS_OTHER})
-endif()
-
-if(libzip_FOUND AND NOT TARGET libzip::libzip)
-  add_library(libzip::libzip UNKNOWN IMPORTED)
-  set_target_properties(libzip::libzip PROPERTIES
-    IMPORTED_LOCATION "${libzip_LIBRARY}"
-    INTERFACE_COMPILE_OPTIONS "${PC_libzip_CFLAGS_OTHER}"
-    INTERFACE_INCLUDE_DIRECTORIES "${libzip_INCLUDE_DIR}"
-  )
-endif()
-
-mark_as_advanced(
-    libzip_INCLUDE_DIR
-    libzip_LIBRARY
-)

externals/find-modules/FindLibzip.cmake

@@ -0,0 +1,69 @@
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_LIBZIP QUIET libzip)
+
+find_path(LIBZIP_INCLUDE_DIR
+  NAMES zip.h
+  PATHS ${PC_LIBZIP_INCLUDE_DIRS}
+  "$ENV{LIB_DIR}/include"
+  "$ENV{INCLUDE}"
+  /usr/local/include
+  /usr/include
+)
+find_path(LIBZIP_INCLUDE_DIR_ZIPCONF
+  NAMES zipconf.h
+  HINTS ${PC_LIBZIP_INCLUDE_DIRS}
+  "$ENV{LIB_DIR}/include"
+  "$ENV{LIB_DIR}/lib/libzip/include"
+  "$ENV{LIB}/lib/libzip/include"
+  /usr/local/lib/libzip/include
+  /usr/lib/libzip/include
+  /usr/local/include
+  /usr/include
+  "$ENV{INCLUDE}"
+)
+find_library(LIBZIP_LIBRARY
+  NAMES zip
+  PATHS ${PC_LIBZIP_LIBRARY_DIRS}
+  "$ENV{LIB_DIR}/lib" "$ENV{LIB}" /usr/local/lib /usr/lib
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Libzip
+  FOUND_VAR LIBZIP_FOUND
+  REQUIRED_VARS
+    LIBZIP_LIBRARY
+    LIBZIP_INCLUDE_DIR
+    LIBZIP_INCLUDE_DIR_ZIPCONF
+)
+
+set(LIBZIP_VERSION 0)
+
+if (LIBZIP_INCLUDE_DIR_ZIPCONF)
+  FILE(READ "${LIBZIP_INCLUDE_DIR_ZIPCONF}/zipconf.h" _LIBZIP_VERSION_CONTENTS)
+  if (_LIBZIP_VERSION_CONTENTS)
+    STRING(REGEX REPLACE ".*#define LIBZIP_VERSION \"([0-9.]+)\".*" "\\1" LIBZIP_VERSION "${_LIBZIP_VERSION_CONTENTS}")
+  endif()
+endif()
+
+set(LIBZIP_VERSION ${LIBZIP_VERSION} CACHE STRING "Version number of libzip")
+
+if(LIBZIP_FOUND)
+  set(LIBZIP_LIBRARIES ${LIBZIP_LIBRARY})
+  set(LIBZIP_INCLUDE_DIRS ${LIBZIP_INCLUDE_DIR})
+  set(LIBZIP_DEFINITIONS ${PC_LIBZIP_CFLAGS_OTHER})
+endif()
+
+if(LIBZIP_FOUND AND NOT TARGET libzip::libzip)
+  add_library(libzip::libzip UNKNOWN IMPORTED)
+  set_target_properties(libzip::libzip PROPERTIES
+    IMPORTED_LOCATION "${LIBZIP_LIBRARY}"
+    INTERFACE_COMPILE_OPTIONS "${PC_LIBZIP_CFLAGS_OTHER}"
+    INTERFACE_INCLUDE_DIRECTORIES "${LIBZIP_INCLUDE_DIR}"
+  )
+endif()
+
+mark_as_advanced(
+    LIBZIP_INCLUDE_DIR
+    LIBZIP_LIBRARY
+)

externals/find-modules/Findgetopt.cmake

@@ -1,33 +0,0 @@
-
-find_package(PkgConfig QUIET)
-pkg_check_modules(PC_getopt QUIET getopt)
-
-find_path(getopt_INCLUDE_DIR
-  NAMES getopt.h
-  PATHS ${PC_getopt_INCLUDE_DIRS}
-)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(getopt
-  FOUND_VAR getopt_FOUND
-  REQUIRED_VARS
-    getopt_INCLUDE_DIR
-  VERSION_VAR getopt_VERSION
-)
-
-if(getopt_FOUND)
-  set(getopt_INCLUDE_DIRS ${getopt_INCLUDE_DIR})
-  set(getopt_DEFINITIONS ${PC_getopt_CFLAGS_OTHER})
-endif()
-
-if(getopt_FOUND AND NOT TARGET getopt::getopt)
-  add_library(getopt::getopt UNKNOWN IMPORTED)
-  set_target_properties(getopt::getopt PROPERTIES
-    INTERFACE_COMPILE_OPTIONS "${PC_getopt_CFLAGS_OTHER}"
-    INTERFACE_INCLUDE_DIRECTORIES "${getopt_INCLUDE_DIR}"
-  )
-endif()
-
-mark_as_advanced(
-    getopt_INCLUDE_DIR
-)

externals/find-modules/Findlz4.cmake

@@ -11,6 +11,19 @@ find_library(lz4_LIBRARY
   PATHS ${PC_lz4_LIBRARY_DIRS}
 )
 
+if(lz4_INCLUDE_DIR)
+  file(STRINGS "${lz4_INCLUDE_DIR}/lz4.h" _lz4_version_lines
+    REGEX "#define[ \t]+LZ4_VERSION_(MAJOR|MINOR|RELEASE)")
+  string(REGEX REPLACE ".*LZ4_VERSION_MAJOR *\([0-9]*\).*" "\\1" _lz4_version_major "${_lz4_version_lines}")
+  string(REGEX REPLACE ".*LZ4_VERSION_MINOR *\([0-9]*\).*" "\\1" _lz4_version_minor "${_lz4_version_lines}")
+  string(REGEX REPLACE ".*LZ4_VERSION_RELEASE *\([0-9]*\).*" "\\1" _lz4_version_release "${_lz4_version_lines}")
+  set(lz4_VERSION "${_lz4_version_major}.${_lz4_version_minor}.${_lz4_version_release}")
+  unset(_lz4_version_major)
+  unset(_lz4_version_minor)
+  unset(_lz4_version_release)
+  unset(_lz4_version_lines)
+endif()
+
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(lz4
   FOUND_VAR lz4_FOUND

externals/find-modules/Findopus.cmake

@@ -22,14 +22,14 @@ find_package_handle_standard_args(opus
 )
 
 if(opus_FOUND)
-  set(opus_LIBRARIES ${opus_LIBRARY})
-  set(opus_INCLUDE_DIRS ${opus_INCLUDE_DIR})
-  set(opus_DEFINITIONS ${PC_opus_CFLAGS_OTHER})
+  set(Opus_LIBRARIES ${opus_LIBRARY})
+  set(Opus_INCLUDE_DIRS ${opus_INCLUDE_DIR})
+  set(Opus_DEFINITIONS ${PC_opus_CFLAGS_OTHER})
 endif()
 
-if(opus_FOUND AND NOT TARGET opus::opus)
-  add_library(opus::opus UNKNOWN IMPORTED)
-  set_target_properties(opus::opus PROPERTIES
+if(opus_FOUND AND NOT TARGET Opus::Opus)
+  add_library(Opus::Opus UNKNOWN IMPORTED)
+  set_target_properties(Opus::Opus PROPERTIES
     IMPORTED_LOCATION "${opus_LIBRARY}"
     INTERFACE_COMPILE_OPTIONS "${PC_opus_CFLAGS_OTHER}"
     INTERFACE_INCLUDE_DIRECTORIES "${opus_INCLUDE_DIR}"

externals/find-modules/Findzstd.cmake

@@ -1,13 +1,13 @@
 
 find_package(PkgConfig QUIET)
-pkg_check_modules(PC_zstd QUIET zstd)
+pkg_check_modules(PC_zstd QUIET libzstd)
 
 find_path(zstd_INCLUDE_DIR
   NAMES zstd.h
   PATHS ${PC_zstd_INCLUDE_DIRS}
 )
 find_library(zstd_LIBRARY
-  NAMES zstd_static
+  NAMES zstd
   PATHS ${PC_zstd_LIBRARY_DIRS}
 )
 

externals/json/README.md

@@ -1,9 +0,0 @@
-JSON for Modern C++
-===================
-
-v3.1.2
-
-This is a mirror providing the single required header file.
-
-The original repository can be found at:
-https://github.com/nlohmann/json/commit/d2dd27dc3b8472dbaa7d66f83619b3ebcd9185fe