[DO-971] ffmpeg recipe with requirements (!9)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/9

recipes/libcap/all/test_package/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.1)
+project(test_package LANGUAGES C)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(CAP REQUIRED IMPORTED_TARGET libcap)
+
+add_executable(${PROJECT_NAME} test_package.c)
+target_link_libraries(${PROJECT_NAME} PRIVATE PkgConfig::CAP)

recipes/libcap/all/test_package/conanfile.py

@@ -0,0 +1,30 @@
+import os
+
+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import CMake, cmake_layout
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeToolchain", "PkgConfigDeps", "VirtualBuildEnv", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def layout(self):
+        cmake_layout(self)
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def build_requirements(self):
+        self.tool_requires("pkgconf/[>=2.0.3]")
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
+            self.run(bin_path, env="conanrun")

recipes/libcap/all/test_package/test_package.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <sys/capability.h>
+
+int main(void) {
+    puts("Allocate cap state");
+    cap_t cap = cap_get_proc();
+    if (!cap) {
+        puts("Failed");
+        return EXIT_FAILURE;
+    }
+    puts("Success");
+    cap_free(cap);
+}