[stb] Add option for precompiled image

recipes/stb/all/CMakeLists.txt

@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.18)
+project(stb LANGUAGES CXX)
+
+set(STB_SOURCES "")
+if(STB_IMAGE)
+    list(APPEND STB_SOURCES "stb_image.cpp")
+endif()
+
+if(STB_SOURCES)
+    add_library(${PROJECT_NAME} ${STB_SOURCES})
+    target_include_directories(${PROJECT_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+endif()
+

recipes/stb/all/conanfile.py

@@ -1,5 +1,6 @@
 from conan import ConanFile
-from conan.tools.files import copy, get, rmdir
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
+from conan.tools.files import copy, get, rmdir, rm
 from conan.tools.layout import basic_layout
 from conan.tools.scm import Version
 import os
@@ -19,10 +20,12 @@ class StbConan(ConanFile):
     no_copy_source = True
     options = {
         "with_deprecated": [True, False],
+        "image": [True, False],
     }
 
     default_options = {
         "with_deprecated": True,
+        "image": False,
     }
 
     @property
@@ -31,10 +34,18 @@ def _version(self):
         #       of the format cci.YYYYMMDD in tools.Version
         return str(self.version)[4:]
 
+    @property
+    def _build_library(self):
+        return self.options.image
+
     def config_options(self):
         if Version(self._version) < "20210713":
             del self.options.with_deprecated
 
+    def export_sources(self):
+        copy(self, pattern="CMakeLists.txt", src=self.recipe_folder, dst=os.path.join(self.export_sources_folder, "src"))
+        copy(self, pattern="stb_image.cpp", src=self.recipe_folder, dst=os.path.join(self.export_sources_folder, "src"))
+
     def layout(self):
         basic_layout(self, src_folder="src")
 
@@ -51,6 +62,20 @@ def package_id(self):
     def source(self):
         get(self, **self.conan_data["sources"][self.version], strip_root=True)
 
+    def layout(self):
+        cmake_layout(self, src_folder="src")
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        if self.options.image:
+            tc.variables["STB_IMAGE"] = "ON"
+        tc.generate()
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
     def package(self):
         copy(self, "LICENSE", src=self.source_folder, dst=os.path.join(self.package_folder, "licenses"))
         copy(self, "*.h", src=self.source_folder, dst=os.path.join(self.package_folder, "include"))
@@ -61,10 +86,13 @@ def package(self):
         if self.options.get_safe("with_deprecated"):
             copy(self, "*.h", src=os.path.join(self.source_folder, "deprecated"), dst=os.path.join(self.package_folder, "include"))
             copy(self, "stb_image.c", src=os.path.join(self.source_folder, "deprecated"), dst=os.path.join(self.package_folder, "include"))
+        copy(self, "lib*.a", src=self.build_folder, dst=os.path.join(self.package_folder, "lib"))
+        if not self.options.image:
+            rm(self, pattern="stb_image.h", folder=os.path.join(self.package_folder, "include"))
 
     def package_info(self):
         self.cpp_info.bindirs = []
-        self.cpp_info.libdirs = []
+        self.cpp_info.libs = ["stb"] if self._build_library else []
         self.cpp_info.defines.append("STB_TEXTEDIT_KEYTYPE=unsigned")
         if self.settings.os in ["Linux", "FreeBSD"]:
             self.cpp_info.system_libs.append("m")

recipes/stb/all/stb_image.cpp

@@ -0,0 +1,2 @@
+#define STB_IMAGE_IMPLEMENTATION
+#include "stb_image.h"