man_pages_posix: bump to 2017.a (#10641)

* man_pages_posix: added 2017.a recipe

* man_pages_posix: Fixed SOURCE_DIR

sys-apps/man-pages-posix/man_pages_posix-2017.a.recipe

@@ -0,0 +1,51 @@
+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="2017 Institute of Electrical and Electronics Engineers, Inc
+	2017 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="ce67bb25b5048b20dad772e405a83f4bc70faf051afa289361c81f9660318bc3"
+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
+}