Add new package MozJPEG (#37052)

* Add new package MozJPEG
  MozJPEG is a patched version of libjpeg-turbo which improves JPEG compression efficiency achieving higher visual quality and smaller file sizes at the same time.
* MozJPEG: Add myself as a maintainer and fix style

var/spack/repos/builtin/packages/mozjpeg/package.py

@@ -0,0 +1,48 @@
+# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class Mozjpeg(CMakePackage):
+    """MozJPEG is a patched version of libjpeg-turbo which improves
+    JPEG compression efficiency achieving higher visual quality and
+    smaller file sizes at the same time"""
+
+    homepage = "https://github.com/mozilla/mozjpeg"
+    url = "https://github.com/mozilla/mozjpeg/archive/refs/tags/v4.1.1.tar.gz"
+
+    maintainers("RemiLacroix-IDRIS")
+
+    version("4.1.1", sha256="66b1b8d6b55d263f35f27f55acaaa3234df2a401232de99b6d099e2bb0a9d196")
+
+    provides("jpeg")
+
+    variant("shared", default=True, description="Build shared libs")
+    variant("static", default=True, description="Build static libs")
+    variant("jpeg8", default=False, description="Emulate libjpeg v8 API/ABI")
+    variant("png", default=False, description="Enable PNG support")
+
+    # Can use either of these. But in the current version of the package
+    # only nasm is used. In order to use yasm an environmental variable
+    # NASM must be set.
+    # TODO: Implement the selection between two supported assemblers.
+    # depends_on("yasm", type="build")
+    depends_on("nasm", type="build")
+    depends_on("libpng@1.6:", when="+png")
+
+    @property
+    def libs(self):
+        return find_libraries("libjpeg*", root=self.prefix, recursive=True)
+
+    def cmake_args(self):
+        args = [
+            self.define_from_variant("ENABLE_SHARED", "shared"),
+            self.define_from_variant("ENABLE_STATIC", "static"),
+            self.define_from_variant("WITH_JPEG8", "jpeg8"),
+            self.define_from_variant("PNG_SUPPORTED", "png"),
+        ]
+
+        return args