boost: add version 1.84.0

recipes/boost/all/conandata.yml

@@ -1,4 +1,9 @@
 sources:
+  "1.84.0":
+    url:
+      - "https://boostorg.jfrog.io/artifactory/main/release/1.84.0/source/boost_1_84_0.tar.bz2"
+      - "https://sourceforge.net/projects/boost/files/boost/1.84.0/boost_1_84_0.tar.bz2"
+    sha256: "cc4b893acf645c9d4b698e9a0f08ca8846aa5d6c68275c14c3e7949c24109454"
   "1.83.0":
     url:
       - "https://boostorg.jfrog.io/artifactory/main/release/1.83.0/source/boost_1_83_0.tar.bz2"
@@ -63,6 +68,10 @@ sources:
     url: "https://boostorg.jfrog.io/artifactory/main/release/1.71.0/source/boost_1_71_0.tar.bz2"
     sha256: "d73a8da01e8bf8c7eda40b4c84915071a8c8a0df4a6734537ddde4a8580524ee"
 patches:
+  "1.84.0":
+    - patch_file: "patches/1.82.0-locale-iconv-library-option.patch"
+      patch_description: "Optional flag to specify iconv from either libc of libiconv"
+      patch_type: "conan"
   "1.83.0":
     - patch_file: "patches/1.82.0-locale-iconv-library-option.patch"
       patch_description: "Optional flag to specify iconv from either libc of libiconv"

recipes/boost/all/conanfile.py

@@ -29,6 +29,7 @@
 CONFIGURE_OPTIONS = (
     "atomic",
     "chrono",
+    "cobalt",
     "container",
     "context",
     "contract",
@@ -163,16 +164,25 @@ def export_sources(self):
     @property
     def _min_compiler_version_default_cxx11(self):
         # Minimum compiler version having c++ standard >= 11
-        if self.settings.compiler == "apple-clang":
-            # For now, assume apple-clang will enable c++11 in the distant future
-            return 99
         return {
             "gcc": 6,
             "clang": 6,
+            "apple-clang": 14,
             "Visual Studio": 14,  # guess
             "msvc": 190,  # guess
         }.get(str(self.settings.compiler))
 
+    @property
+    def _min_compiler_version_default_cxx20(self):
+        return {
+            "gcc": 99,
+            "clang": 99,
+            # As of the end of 2023, only apple-clang >=14 use C++20 as their default C++ version.
+            "apple-clang": 14,
+            "Visual Studio": 99,
+            "msvc": 999,
+        }.get(str(self.settings.compiler))
+
     @property
     def _min_compiler_version_nowide(self):
         # Nowide needs c++11 + swappable std::fstream
@@ -369,6 +379,28 @@ def disable_locale():
                 elif Version(self.settings.compiler.version) < min_compiler_version:
                     disable_locale()
 
+        if Version(self.version) >= "1.84.0":
+            # Starting from 1.84.0, Boost.Cobalt requires a c++20 capable compiler
+            # ==> disable it by default for older compilers or c++ standards
+
+            def disable_cobalt():
+                super_modules = self._all_super_modules("cobalt")
+                for smod in super_modules:
+                    try:
+                        setattr(self.options, f"without_{smod}", True)
+                    except ConanException:
+                        pass
+
+            if self.settings.compiler.get_safe("cppstd"):
+                if not valid_min_cppstd(self, 20):
+                    disable_cobalt()
+            else:
+                min_compiler_version = self._min_compiler_version_default_cxx20
+                if min_compiler_version is None:
+                    self.output.warning("Assuming the compiler supports c++20 by default")
+                elif Version(self.settings.compiler.version) < min_compiler_version:
+                    disable_cobalt()
+
     @property
     def _configure_options(self):
         return self._dependencies["configure_options"]
@@ -429,6 +461,10 @@ def configure(self):
         if self.options.without_fiber:
             self.options.rm_safe("numa")
 
+        # FIXME: Compilation errors on msvc shared build for boost.fiber https://github.com/boostorg/fiber/issues/314
+        if Version(self.version) >= "1.84.0" and is_msvc(self) and self._shared:
+            self.options.without_fiber = True
+
     def layout(self):
         basic_layout(self, src_folder="src")
 
@@ -441,6 +477,14 @@ def _cxx11_boost_libraries(self):
             libraries.append("wave")
         if Version(self.version) >= "1.81.0":
             libraries.append("locale")
+        if Version(self.version) >= "1.84.0":
+            libraries.append("atomic")
+            libraries.append("filesystem")
+            libraries.append("log")
+            libraries.append("random")
+            libraries.append("stacktrace")
+            libraries.append("test")
+            libraries.append("thread")
         libraries.sort()
         return filter(lambda library: f"without_{library}" in self.options, libraries)
 
@@ -457,6 +501,10 @@ def validate(self):
         if is_msvc(self) and self._shared and is_msvc_static_runtime(self):
             raise ConanInvalidConfiguration("Boost can not be built as shared library with MT runtime.")
 
+        # FIXME: In 1.84.0, there are compilation errors on msvc shared build for boost.fiber.
+        if Version(self.version) >= "1.84.0" and is_msvc(self) and self._shared and not self.options.without_fiber:
+            raise ConanInvalidConfiguration("Boost.fiber can not be built as shared library on MSVC.")
+
         if not self.options.without_locale and self.options.i18n_backend_iconv == "off" and \
            not self.options.i18n_backend_icu and not self._is_windows_platform:
             raise ConanInvalidConfiguration(