fpng: add recipe

[toge]

Specify library name and version: fpng/*

---

• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[valgur]

Inconsistent indentation.

[toge]

@valgur
Thanks a lot!
Fixed.

[valgur]

Not worth changing it here, but I generally find it easier to

def export_sources(self):
    copy(self, "CMakeLists.txt", self.recipe_folder, os.path.join(self.export_sources_folder, "src"))

That way all of the CMakeLists.txt and source paths work without any prefixing.

The current approach is not wrong either, though, of course.

[toge]

@valgur
Sorry for my late response.

I tried your comment, but I failed.
Are there any misunderstandings in my modification?

Error message is following.

fpng/1.0.6: Running CMake.configure()
fpng/1.0.6: RUN: cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="generators/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="/home/toge/.conan2/p/b/fpng8db6eab8b7baf/p" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/toge/.conan2/p/b/fpng8db6eab8b7baf/b/src"
CMake Warning:
  Ignoring extra path from command line:

   "/home/toge/.conan2/p/b/fpng8db6eab8b7baf/b/src"


CMake Error: The source directory "/home/toge/.conan2/p/b/fpng8db6eab8b7baf/b/src" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.

modified conanfile.py

``` from conan import ConanFile from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout from conan.tools.files import get, save, load, copy, rm from conan.tools.build import check_min_cppstd import os

required_conan_version = ">=1.53.0"

class FpngConan(ConanFile):
name = "fpng"
description = "Super fast C++ .PNG writer/reader"
license = "Unlicense",
url = "https://github.com/conan-io/conan-center-index"
homepage = "https://github.com/richgel999/fpng"
topics = ("png", "writer", "reader")
package_type = "library"
settings = "os", "arch", "compiler", "build_type"
options = {
"shared": [True, False],
"fPIC": [True, False],
"with_sse": [True, False],
}
default_options = {
"shared": False,
"fPIC": True,
"with_sse": True,
}

def export_sources(self):
    copy(self, "CMakeLists.txt", self.recipe_folder, os.path.join(self.export_sources_folder, "src"))

def config_options(self):
    if self.settings.os == "Windows":
        del self.options.fPIC

def configure(self):
    if self.options.shared:
        self.options.rm_safe("fPIC")

def layout(self):
    cmake_layout(self, src_folder="src")

def validate(self):
    check_min_cppstd(self, 11)

def source(self):
    get(self, **self.conan_data["sources"][self.version], strip_root=True)
    # remove original CMakeLists.txt (which builds a test program only)
    rm(self, "CMakeLists.txt", self.source_folder)

def generate(self):
    tc = CMakeToolchain(self)
    tc.variables["FPNG_WITH_SSE"] = self.options.with_sse
    tc.generate()

def build(self):
    cmake = CMake(self)
    cmake.configure()
    cmake.build()

def package(self):
    filename = os.path.join(self.source_folder, "src", "fpng.cpp")
    file_content = load(self, filename)
    license_start = "	This is free and unencumbered software"
    license_end = "*/"
    license_contents = file_content[file_content.find(license_start):file_content.find(license_end)]
    save(self, os.path.join(self.package_folder, "licenses", "LICENSE"), license_contents)
    cmake = CMake(self)
    cmake.install()

def package_info(self):
    self.cpp_info.libs = ["fpng"]
    if self.settings.os in ("FreeBSD", "Linux"):
        self.cpp_info.system_libs = ["m"]

</details>

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 4 (848de399f8c095159a1cb48fae9fc4e49ed22c07):

• fpng/1.0.6:
  All packages built successfully! (All logs)

---

Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 4 (848de399f8c095159a1cb48fae9fc4e49ed22c07):

• fpng/1.0.6:
  All packages built successfully! (All logs)