sys-apps/man-pages-posix: add version 2013.a

sys-apps/man-pages-posix/licenses/POSIX

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+The Institute of Electrical and Electronics Engineers (IEEE) and
+The Open Group, have given us permission to reprint portions of
+their documentation.
+
+In the following statement, the phrase ``this text'' refers to
+portions of the system documentation.
+
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri-
+cal and Electronics Engineers, Inc and The Open Group.  (This is
+POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document.  The original Standard can be obtained online
+at http://www.unix.org/online.html .
+
+This notice shall appear on any product containing this material.
+
+Redistribution of this material is permitted so long as this notice and
+the corresponding notices within each POSIX manual page are retained on
+any distribution, and the nroff source is included. Modifications to
+the text are permitted so long as any conflicts with the standard
+are clearly marked as such in the text.

sys-apps/man-pages-posix/man_pages_posix-2013.a.recipe

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+SUMMARY="POSIX man-pages (0p, 1p, 3p)"
+DESCRIPTION="Contains descriptions of the headers, the utilities, \
+and the functions documented in the POSIX standard."
+HOMEPAGE="https://www.kernel.org/doc/man-pages/"
+COPYRIGHT="2013 Institute of Electrical and Electronics Engineers, Inc
+	2013 The Open Group"
+LICENSE="POSIX"
+REVISION="1"
+SOURCE_URI="https://www.kernel.org/pub/linux/docs/man-pages/man-pages-posix/${portName//_/-}-${portVersion/./-}.tar.xz"
+CHECKSUM_SHA256="19633a5c75ff7deab35b1d2c3d5b7748e7bd4ef4ab598b647bb7e7f60b90a808"
+SOURCE_DIR="${portName//_/-}-${portVersion/./-}"
+
+ARCHITECTURES="any"
+DISABLE_SOURCE_PACKAGE="yes"
+
+PROVIDES="
+	$portName = $portVersion
+	"
+REQUIRES=""
+
+BUILD_REQUIRES=""
+BUILD_PREREQUIRES="
+	cmd:find
+	cmd:make
+	cmd:perl
+	"
+
+PATCH() {
+	# Replace Linux's prolog with Haiku's
+	local prolog="This manual page is part of the POSIX Programmer's Manual.\\n\
+This interface might not be implemented on Haiku."
+
+	local manpages=( $(find man?p -type f) )
+	for m in "${manpages[@]}"
+	do
+		perl -e '
+while (<>) {
+	$s .= $_;
+}
+chomp $s;
+$s =~ s/(?<=\.SH PROLOG\n).*?(?=^\s*$)/'"$prolog"'/gms;
+print "$s"
+' < "$m" > "$m.new"
+		mv "$m.new" "$m"
+	done
+}
+
+INSTALL() {
+	make MANDIR="$manDir" install
+}