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mpdecimal: Fix cxx+shared, remove unnecessary automake dependency #25903

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27 changes: 11 additions & 16 deletions recipes/mpdecimal/2.5.x/conanfile.py
Original file line number Diff line number Diff line change
Expand Up @@ -32,10 +32,6 @@ class MpdecimalConan(ConanFile):
"cxx": True,
}

@property
def _settings_build(self):
return getattr(self, "setings_build", self.settings)

def export_sources(self):
export_conandata_patches(self)

Expand All @@ -57,20 +53,16 @@ def validate(self):
if is_msvc(self) and self.settings.arch not in ("x86", "x86_64"):
raise ConanInvalidConfiguration(
f"{self.ref} currently does not supported {self.settings.arch}. Contributions are welcomed")
if self.options.cxx:
if self.options.cxx and Version(self.version) < "2.5.1":
if self.options.shared and self.settings.os == "Windows":
raise ConanInvalidConfiguration(
"A shared libmpdec++ is not possible on Windows (due to non-exportable thread local storage)")

def build_requirements(self):
if is_msvc(self):
self.tool_requires("automake/1.16.5")
else:
# required to support windows as a build machine
if self._settings_build.os == "Windows":
self.win_bash = True
if not self.conf.get("tools.microsoft.bash:path", check_type=str):
self.tool_requires("msys2/cci.latest")
if not is_msvc(self) and self.settings_build.os == "Windows":
self.win_bash = True
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given that our CI only covers win+msvc, I suppose this is an untested branch now.
Is this to support mingw?

Chances are that we need to detect clang and check if it it needs to fall outside of this conditional as well

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I believe I tested this branch with Mingw and it worked. I can play around with it, but regardless of if it works or not this should still be a strict improvement, because the only change is just removing the automake dependency, which definitely was not used.

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I'm actually not very familiar with what msys2 is used for in general. Is it just whenever we need access to a unix-style shell in a Windows build? So if we're calling commands like ls, sed, etc. (things that aren't available in Windows)?

if not self.conf.get("tools.microsoft.bash:path", check_type=str):
self.tool_requires("msys2/cci.latest")

def source(self):
get(self, **self.conan_data["sources"][self.version], strip_root=True)
Expand Down Expand Up @@ -141,13 +133,16 @@ def _build_msvc(self):
copy(self, "mpdecimal.h", libmpdec_folder, dist_folder)
if self.options.shared:
copy(self, f"libmpdec-{self.version}.dll", libmpdec_folder, dist_folder)
copy(self, f"libmpdec-{self.version}.dll.exp", libmpdec_folder, dist_folder)
copy(self, f"libmpdec-{self.version}.dll.lib", libmpdec_folder, dist_folder)
else:
copy(self, f"libmpdec-{self.version}.lib", libmpdec_folder, dist_folder)
if self.options.cxx:
if self.options.shared:
copy(self, f"libmpdec++-{self.version}.dll", libmpdecpp_folder, dist_folder)
copy(self, f"libmpdec++-{self.version}.dll.lib", libmpdecpp_folder, dist_folder)
else:
copy(self, f"libmpdec++-{self.version}.lib", libmpdecpp_folder, dist_folder)
copy(self, "decimal.hh", libmpdecpp_folder, dist_folder)
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copy(self, f"libmpdec++-{self.version}.lib", libmpdecpp_folder, dist_folder)

@property
def _shared_suffix(self):
Expand Down Expand Up @@ -239,4 +234,4 @@ def package_info(self):
if self.settings.os in ["Linux", "FreeBSD"]:
self.cpp_info.components["libmpdecimal++"].system_libs = ["pthread"]
if self.options.shared and Version(self.version) >= "2.5.1":
self.cpp_info.components["libmpdecimal"].defines = ["MPDECIMALXX_DLL"]
self.cpp_info.components["libmpdecimal++"].defines = ["MPDECIMALXX_DLL"]