qemacs, texi2html: new packages (#48537)

* qemacs, texi2html: new packages
* Make plugin support variant

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

@@ -0,0 +1,59 @@
+# Copyright Spack Project Developers. See COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class Qemacs(MakefilePackage):
+    """Light emacs clone."""
+
+    homepage = "https://github.com/qemacs/qemacs/"
+    git = "https://github.com/qemacs/qemacs.git"
+
+    license("MIT", checked_by="Buldram")
+    maintainers("Buldram")
+
+    version("master", branch="master")
+    version("6.3.3", commit="e3c5bfd457614773508feefdc12dbc60073030ed")
+    version("6.3.2", commit="0e90c181078f3d85d0d44d985d541184223668e1")
+    version("6.3.1", commit="288eeb450e534a39adb337396aa9ffcdc629f94e")
+    version("6.2.1", commit="e566f230642f63fe7870990374e1bdc4d69fee9c")
+
+    conflicts("%apple-clang", msg="Incompatible with Apple Clang's default linker.")
+
+    depends_on("which", type="build")
+
+    variant("docs", default=False, description="Build documentation")
+    variant("plugins", default=False, description="Enable plugin support")
+    variant("X", default=False, description="Build with X11 support")
+    variant("png", default=True, when="+X", description="Build with PNG support")
+    variant("xshm", default=True, when="+X", description="Build with XShm support")
+    variant("xv", default=True, when="+X", description="Build with X Video support")
+
+    conflicts("+docs", when="platform=freebsd")
+    conflicts("+plugins", when="platform=freebsd")
+    conflicts("+plugins", when="platform=darwin")
+
+    depends_on("texi2html", type="build", when="+docs")
+    depends_on("libx11", type="link", when="+X")
+    depends_on("libxcb", type="link", when="+X")
+    depends_on("libxau", type="link", when="+X")
+    depends_on("libxdmcp", type="link", when="+X")
+    depends_on("libpng", type="link", when="+png")
+    depends_on("libxext", type="link", when="+xshm")
+    depends_on("libxv", type="link", when="+xv")
+
+    def edit(self, spec, prefix):
+        Executable("./configure")(
+            "--prefix=" + prefix,
+            "--" + ("enable" if spec.satisfies("+plugins") else "disable") + "-plugins",
+            "--" + ("enable" if spec.satisfies("+X") else "disable") + "-x11",
+            "--" + ("enable" if spec.satisfies("+png") else "disable") + "-png",
+            "--" + ("enable" if spec.satisfies("+xshm") else "disable") + "-xshm",
+            "--" + ("enable" if spec.satisfies("+xv") else "disable") + "-xv",
+            "--disable-tiny",  # Currently broken
+            "--disable-html",  # Currently broken
+            "--disable-ffmpeg",  # Currently broken
+            "--disable-xrender",  # Currently broken
+        )

var/spack/repos/builtin/packages/texi2html/package.py

@@ -0,0 +1,36 @@
+# Copyright Spack Project Developers. See COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class Texi2html(MakefilePackage):
+    """A highly customizable texinfo to HTML and other formats translator."""
+
+    homepage = "https://www.nongnu.org/texi2html/"
+    url = "http://download.savannah.nongnu.org/releases/texi2html/texi2html-5.0.tar.gz"
+
+    license("GPL-2.0-or-later", checked_by="Buldram")
+
+    version("5.0", sha256="e60edd2a9b8399ca615c6e81e06fa61946ba2f2406c76cd63eb829c91d3a3d7d")
+
+    depends_on("gettext", type="build")
+    depends_on("perl", type=("build", "run"))
+
+    def edit(self, spec, prefix):
+        Executable("./configure")("--prefix=" + prefix)
+
+        perl_files = FileFilter(
+            "gettext_to_separated.pl",
+            "manage_i18n.pl",
+            "parse_8bit_makeinfo_maps.pl",
+            "regenerate_documentlanguages.pl",
+            "separated_to_hash.pl",
+            "lib/Unicode-EastAsianWidth/Makefile.PL",
+            "lib/Unicode-EastAsianWidth/t/0-signature.t",
+            "lib/Unicode-EastAsianWidth/t/1-basic.t",
+        )
+        perl_files.filter("/usr/bin/perl", spec["perl"].prefix.bin.perl, string=True)
+
+        set_executable("install-sh")