homebrew-core/Formula/flex.rb

90 lines
2.9 KiB
Ruby

class Flex < Formula
desc "Fast Lexical Analyzer, generates Scanners (tokenizers)"
homepage "https://github.com/westes/flex"
license "BSD-2-Clause"
revision 2
stable do
url "https://github.com/westes/flex/releases/download/v2.6.4/flex-2.6.4.tar.gz"
sha256 "e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995"
# Fix -flat_namespace being used on Big Sur and later.
patch do
url "https://raw.githubusercontent.com/Homebrew/formula-patches/03cf8088210822aa2c1ab544ed58ea04c897d9c4/libtool/configure-big_sur.diff"
sha256 "35acd6aebc19843f1a2b3a63e880baceb0f5278ab1ace661e57a502d9d78c93c"
end
end
bottle do
sha256 arm64_ventura: "900f81d92ac336f0deac4e23141807b77cd15c57460c55ddfafa873d62447d0c"
sha256 arm64_monterey: "fba3fc3fe93abae2c8c436f0cf2fba194f6cf68e6938496937163c416fe6f402"
sha256 arm64_big_sur: "ba78304da35f69526d386e1d1decca8818b155b4dda4f470d9393d23cf713e11"
sha256 monterey: "937f34d36419d74cb32ef93df71f5fad1638b2ec5290cb865840e1fcc95ac595"
sha256 big_sur: "89ec2b04b1aab94297f490c60fe6ca2bcde7de9b7661482728b07931e635d21c"
sha256 catalina: "e563a7a42aceff203cca4f420ebc6a8bbd5075a2b0007d46724f037ebc7b41a5"
sha256 mojave: "687132db0837bdcb6e02b5715f6a07f658bdf109b5353908f260d46d354f7bdb"
sha256 x86_64_linux: "b2bff056ad86d8a1cb1a08944867b5f60636ad4e7edca623810937330d87d8eb"
end
head do
url "https://github.com/westes/flex.git", branch: "master"
depends_on "autoconf" => :build
depends_on "automake" => :build
# https://github.com/westes/flex/issues/294
depends_on "gnu-sed" => :build
depends_on "libtool" => :build
depends_on :macos # Needs a pre-existing `flex` to bootstrap.
end
keg_only :provided_by_macos
depends_on "help2man" => :build
depends_on "gettext"
uses_from_macos "bison" => :build
uses_from_macos "m4"
def install
if build.head?
ENV.prepend_path "PATH", Formula["gnu-sed"].opt_libexec/"gnubin"
system "./autogen.sh"
end
# Fix segmentation fault during install on Ubuntu 18.04 (caused by glibc 2.26+),
# remove with the next release
ENV.append "CPPFLAGS", "-D_GNU_SOURCE" if OS.linux?
system "./configure", "--disable-dependency-tracking",
"--disable-silent-rules",
"--enable-shared",
"--prefix=#{prefix}"
system "make", "install"
bin.install_symlink "flex" => "lex"
end
test do
(testpath/"test.flex").write <<~EOS
CHAR [a-z][A-Z]
%%
{CHAR}+ printf("%s", yytext);
[ \\t\\n]+ printf("\\n");
%%
int main()
{
yyin = stdin;
yylex();
}
EOS
system "#{bin}/flex", "test.flex"
system ENV.cc, "lex.yy.c", "-L#{lib}", "-lfl", "-o", "test"
assert_equal shell_output("echo \"Hello World\" | ./test"), <<~EOS
Hello
World
EOS
end
end