odbc: conan v2 support + unvendor libltdl

recipes/odbc/all/conandata.yml

@@ -10,6 +10,8 @@ sources:
       - "http://www.unixodbc.net/unixODBC-2.3.7.tar.gz"
     sha256: "45f169ba1f454a72b8fcbb82abd832630a3bf93baa84731cf2949f449e1e3e77"
 patches:
+  "2.3.9":
+    - patch_file: "patches/0001-duplicated-get-connection.patch"
   "2.3.7":
-    - patch_file: "patches/missing-declarations.patch"
-      base_path: "source_subfolder"
+    - patch_file: "patches/0001-duplicated-get-connection.patch"
+    - patch_file: "patches/0002-missing-declarations.patch"

recipes/odbc/all/conanfile.py

@@ -1,10 +1,12 @@
-from conans import ConanFile, AutoToolsBuildEnvironment, tools
-from conans.errors import ConanInvalidConfiguration
-import functools
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, replace_in_file, rm, rmdir
+from conan.tools.gnu import Autotools, AutotoolsToolchain
+from conan.tools.layout import basic_layout
 import os
 import shutil
 
-required_conan_version = ">=1.43.0"
+required_conan_version = ">=1.52.0"
 
 
 class OdbcConan(ConanFile):
@@ -27,84 +29,106 @@ class OdbcConan(ConanFile):
         "with_libiconv": True,
     }
 
-    @property
-    def _source_subfolder(self):
-        return "source_subfolder"
-
     @property
     def _user_info_build(self):
         return getattr(self, "user_info_build", self.deps_user_info)
 
     def export_sources(self):
-        for patch in self.conan_data.get("patches", {}).get(self.version, []):
-            self.copy(patch["patch_file"])
+        export_conandata_patches(self)
 
     def configure(self):
         if self.options.shared:
-            del self.options.fPIC
-        del self.settings.compiler.libcxx
-        del self.settings.compiler.cppstd
+            try:
+                del self.options.fPIC
+            except Exception:
+                pass
+        try:
+            del self.settings.compiler.cppstd
+        except Exception:
+            pass
+        try:
+            del self.settings.compiler.libcxx
+        except Exception:
+            pass
+
+    def layout(self):
+        basic_layout(self, src_folder="src")
 
     def requirements(self):
+        self.requires("libtool/2.4.7")
         if self.options.with_libiconv:
             self.requires("libiconv/1.17")
 
     def validate(self):
-        if self.settings.os == "Windows":
+        if self.info.settings.os == "Windows":
             raise ConanInvalidConfiguration("odbc is a system lib on Windows")
 
     def build_requirements(self):
-        self.build_requires("gnu-config/cci.20201022")
+        self.tool_requires("gnu-config/cci.20210814")
 
     def source(self):
-        tools.get(**self.conan_data["sources"][self.version],
-                  destination=self._source_subfolder, strip_root=True)
+        get(self, **self.conan_data["sources"][self.version],
+            destination=self.source_folder, strip_root=True)
+
+    def generate(self):
+        tc = AutotoolsToolchain(self)
+        yes_no = lambda v: "yes" if v else "no"
+        tc.configure_args.extend([
+            "--without-included-ltdl",
+            f"--with-ltdl-include={self.dependencies['libtool'].cpp_info.includedirs[0]}",
+            f"--with-ltdl-lib={self.dependencies['libtool'].cpp_info.libdirs[0]}",
+            "--disable-ltdl-install",
+            f"--enable-iconv={yes_no(self.options.with_libiconv)}",
+            "--sysconfdir=/etc",
+        ])
+        if self.options.with_libiconv:
+            libiconv_prefix = self.dependencies["libiconv"].package_folder
+            tc.configure_args.append(f"--with-libiconv-prefix={libiconv_prefix}")
+        tc.generate()
 
     def _patch_sources(self):
-        for patch in self.conan_data.get("patches", {}).get(self.version, []):
-            tools.patch(**patch)
+        apply_conandata_patches(self)
+        # support more triplets
         shutil.copy(self._user_info_build["gnu-config"].CONFIG_SUB,
-                    os.path.join(self._source_subfolder, "config.sub"))
+                    os.path.join(self.source_folder, "config.sub"))
         shutil.copy(self._user_info_build["gnu-config"].CONFIG_GUESS,
-                    os.path.join(self._source_subfolder, "config.guess"))
+                    os.path.join(self.source_folder, "config.guess"))
+        # allow external libtdl (in libtool recipe)
+        replace_in_file(
+            self,
+            os.path.join(self.source_folder, "configure"),
+            "if test -f \"$with_ltdl_lib/libltdl.la\";",
+            "if true;",
+        )
+        libtool_system_libs = self.dependencies["libtool"].cpp_info.system_libs
+        if libtool_system_libs:
+            replace_in_file(
+                self,
+                os.path.join(self.source_folder, "configure"),
+                "-L$with_ltdl_lib -lltdl",
+                "-L$with_ltdl_lib -lltdl -l{}".format(" -l".join(libtool_system_libs)),
+            )
         # relocatable shared libs on macOS
         for configure in [
-            os.path.join(self._source_subfolder, "configure"),
-            os.path.join(self._source_subfolder, "libltdl", "configure"),
+            os.path.join(self.source_folder, "configure"),
+            os.path.join(self.source_folder, "libltdl", "configure"),
         ]:
-            tools.replace_in_file(configure, "-install_name \\$rpath/", "-install_name @rpath/")
-
-    @functools.lru_cache(1)
-    def _configure_autotools(self):
-        autotools = AutoToolsBuildEnvironment(self)
-        autotools.libs = []
-        yes_no = lambda v: "yes" if v else "no"
-        args = [
-            "--enable-shared={}".format(yes_no(self.options.shared)),
-            "--enable-static={}".format(yes_no(not self.options.shared)),
-            "--enable-ltdl-install",
-            "--enable-iconv={}".format(yes_no(self.options.with_libiconv)),
-            "--sysconfdir=/etc",
-        ]
-        if self.options.with_libiconv:
-            libiconv_prefix = self.deps_cpp_info["libiconv"].rootpath
-            args.append("--with-libiconv-prefix={}".format(libiconv_prefix))
-        autotools.configure(configure_dir=self._source_subfolder, args=args)
-        return autotools
+            replace_in_file(self, configure, "-install_name \\$rpath/", "-install_name @rpath/")
 
     def build(self):
         self._patch_sources()
-        autotools = self._configure_autotools()
+        autotools = Autotools(self)
+        autotools.configure()
         autotools.make()
 
     def package(self):
-        self.copy("COPYING", src=self._source_subfolder, dst="licenses")
-        autotools = self._configure_autotools()
+        copy(self, "COPYING", src=self.source_folder, dst=os.path.join(self.package_folder, "licenses"))
+        autotools = Autotools(self)
         autotools.install()
-        tools.rmdir(os.path.join(self.package_folder, "share"))
-        tools.rmdir(os.path.join(self.package_folder, "etc"))
-        tools.rmdir(os.path.join(self.package_folder, "lib", "pkgconfig"))
-        tools.remove_files_by_mask(os.path.join(self.package_folder, "lib"), "*.la")
+        rmdir(self, os.path.join(self.package_folder, "share"))
+        rmdir(self, os.path.join(self.package_folder, "etc"))
+        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
+        rm(self, "*.la", os.path.join(self.package_folder, "lib"))
 
     def package_info(self):
         self.cpp_info.set_property("cmake_find_mode", "both")
@@ -119,26 +143,24 @@ def package_info(self):
         # odbc
         self.cpp_info.components["_odbc"].set_property("pkg_config_name", "odbc")
         self.cpp_info.components["_odbc"].libs = ["odbc"]
-        self.cpp_info.components["_odbc"].requires = ["odbcltdl"]
+        self.cpp_info.components["_odbc"].requires = ["libtool::libtool"]
         if self.options.with_libiconv:
             self.cpp_info.components["_odbc"].requires.append("libiconv::libiconv")
 
         # odbcinst
         self.cpp_info.components["odbcinst"].set_property("pkg_config_name", "odbcinst")
         self.cpp_info.components["odbcinst"].libs = ["odbcinst"]
-        self.cpp_info.components["odbcinst"].requires = ["odbcltdl"]
+        self.cpp_info.components["odbcinst"].requires = ["libtool::libtool"]
 
         # odbccr
         self.cpp_info.components["odbccr"].set_property("pkg_config_name", "odbccr")
         self.cpp_info.components["odbccr"].libs = ["odbccr"]
 
-        self.cpp_info.components["odbcltdl"].libs = ["ltdl"]
-
         if self.settings.os in ["Linux", "FreeBSD"]:
             self.cpp_info.components["_odbc"].system_libs = ["pthread"]
             self.cpp_info.components["odbcinst"].system_libs = ["pthread"]
-            self.cpp_info.components["odbcltdl"].system_libs = ["dl"]
 
+        # TODO: to remove in conan v2
         bin_path = os.path.join(self.package_folder, "bin")
-        self.output.info("Appending PATH environment variable: {}".format(bin_path))
+        self.output.info(f"Appending PATH environment variable: {bin_path}")
         self.env_info.PATH.append(bin_path)

recipes/odbc/all/patches/0001-duplicated-get-connection.patch

@@ -0,0 +1,11 @@
+--- a/cur/SQLGetDiagRec.c
++++ b/cur/SQLGetDiagRec.c
+@@ -101,8 +101,4 @@ SQLRETURN CLGetDiagRec( SQLSMALLINT handle_type,
+                          text_length_ptr);
+ }
+
+-DMHDBC __get_connection( EHEAD * head )
+-{
+-    return 0;
+-}
+

recipes/odbc/all/test_package/CMakeLists.txt

@@ -1,10 +1,7 @@
 cmake_minimum_required(VERSION 3.1)
-project(test_package C)
-
-include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
-conan_basic_setup(TARGETS)
+project(test_package LANGUAGES C)
 
 find_package(ODBC REQUIRED)
 
 add_executable(${PROJECT_NAME} test_package.c)
-target_link_libraries(${PROJECT_NAME} ODBC::ODBC)
+target_link_libraries(${PROJECT_NAME} PRIVATE ODBC::ODBC)

recipes/odbc/all/test_package/conanfile.py

@@ -1,27 +1,27 @@
-from conans import ConanFile, CMake, tools
+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import CMake, cmake_layout
 import os
 
 
 class TestPackageConan(ConanFile):
     settings = "os", "arch", "compiler", "build_type"
-    generators = "cmake", "cmake_find_package"
+    generators = "CMakeToolchain", "CMakeDeps", "VirtualRunEnv"
+    test_type = "explicit"
 
-    def build_requirements(self):
-        if self.settings.os == "Macos" and self.settings.arch == "armv8":
-            # Workaround for CMake bug with error message:
-            # Attempting to use @rpath without CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG being
-            # set. This could be because you are using a Mac OS X version less than 10.5
-            # or because CMake's platform configuration is corrupt.
-            # FIXME: Remove once CMake on macOS/M1 CI runners is upgraded.
-            self.build_requires("cmake/3.22.0")
+    def layout(self):
+        cmake_layout(self)
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
 
     def build(self):
         cmake = CMake(self)
         cmake.configure()
         cmake.build()
 
     def test(self):
-        if not tools.cross_building(self):
-            bin_path = os.path.join("bin", "test_package")
-            self.run(bin_path, run_environment=True)
-            self.run("odbcinst --version", run_environment=True)
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
+            self.run(bin_path, env="conanrun")
+            self.run("odbcinst --version", env="conanrun")

recipes/odbc/all/test_v1_package/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.1)
+project(test_package LANGUAGES C)
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup(TARGETS)
+
+find_package(ODBC REQUIRED)
+
+add_executable(${PROJECT_NAME} ../test_package/test_package.c)
+target_link_libraries(${PROJECT_NAME} PRIVATE ODBC::ODBC)

recipes/odbc/all/test_v1_package/conanfile.py

@@ -0,0 +1,18 @@
+from conans import ConanFile, CMake, tools
+import os
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "cmake", "cmake_find_package"
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if not tools.cross_building(self):
+            bin_path = os.path.join("bin", "test_package")
+            self.run(bin_path, run_environment=True)
+            self.run("odbcinst --version", run_environment=True)