gnu.org/help2man (#2947)

* gnu.org/help2man

* remove .bak

---------

Co-authored-by: Jacob Heider <jacob@tea.xyz>

projects/gnu.org/help2man/package.yml

@@ -0,0 +1,41 @@
+distributable:
+  url: https://ftp.gnu.org/gnu/help2man/help2man-{{version}}.tar.xz
+  strip-components: 1
+versions:
+  url: https://ftp.gnu.org/gnu/help2man/
+  match: /help2man-\d+\.\d+\.\d+\.tar\.xz/
+  strip:
+    - /^help2man-/
+    - /\.tar\.xz/
+dependencies:
+  gnu.org/gettext: '*'
+  perl.org: '*'
+runtime:
+  env:
+    PERL5LIB: "{{prefix}}/lib/perl5:{{prefix}}/libexec/lib/perl5:$PERL5LIB"
+build:
+  dependencies:
+    tea.xyz/gx/cc: c99
+    gnu.org/make: '*'
+    cpanmin.us: '*'
+  script:
+    - cpanm -l {{prefix}} Locale::gettext
+    - ./configure $CONFIGURE_ARGS
+    - make install
+    - run: |
+        sed -i.bak '1s|.*|#!/usr/bin/env perl|' help2man
+        rm help2man.bak
+      working-directory: ${{prefix}}/bin
+  env:
+    PERL5LIB: "{{prefix}}/lib/perl5:{{prefix}}/libexec/lib/perl5:$PERL5LIB"
+    CONFIGURE_ARGS:
+      - --disable-debug
+      - --disable-dependency-tracking
+      - --prefix="{{prefix}}"
+      - --libdir="{{prefix}}/lib"
+provides:
+  - bin/help2man
+test:
+  script:
+    - help2man --version | grep {{version}}
+    - help2man --locale=en_US.UTF-8 help2man | grep {{version}}