Drop support for i586

This patch removes support for i586 according to the decision being
taken over a year ago.

It removes the architecture from the build system and removes all
required hacks and other quirks that have been necessary before.

There is no need to ship any changed files to the remaining
architectures as the removed code branches have not been used.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/initscripts/system/sysctl

@@ -26,9 +26,8 @@ case "${1}" in
 		fi
 		arch=`uname -m`
 		case "${arch}" in
-			i?86 )	arch="i586";
-				;;
-			armv*)	arch="armv6l":
+			armv*)
+				arch="armv6l":
 				;;
 		esac
 		if [ -f "/etc/sysctl-${arch}.conf" ]; then

src/installer/install-bootloader

@@ -104,9 +104,6 @@ function grub_install() {
 		aarch64)
 			arches="arm64-efi"
 			;;
-		i?86)
-			arches="i386-pc"
-			;;
 		x86_64)
 			arches="i386-pc x86_64-efi"
 			;;

src/pakfire/lib/functions.pl

@@ -977,10 +977,6 @@ sub get_arch() {
 	# We only support armv6l for 32 bit arm
 	if ($machine =~ m/armv[67]/) {
 		return "armv6l";
-
-	# We only support i586 for 32 bit x86
-	} elsif ($machine =~ m/i[0-9]86/) {
-		return "i586";
 	}
 
 	return $machine;
@@ -1015,10 +1011,7 @@ sub make_version() {
 	}
 
 	# Append architecture
-	my $arch = &get_arch();
-	if ($arch ne "i586") {
-		$version .= "-${arch}";
-	}
+	$version .= "-" . &get_arch();
 
 	return $version;
 }

src/patches/libloc/libloc-0.9.3-perl-i586-regular-stack-protector.patch

@@ -1,12 +0,0 @@
-diff --git a/src/perl/Makefile.PL b/src/perl/Makefile.PL
-index 38d5390..62016ca 100644
---- a/src/perl/Makefile.PL
-+++ b/src/perl/Makefile.PL
-@@ -11,6 +11,7 @@ WriteMakefile(
-     LIBS              => ['-lloc'],
-     DEFINE            => '', # e.g., '-DHAVE_SOMETHING'
-     INC               => '-I. -I../../',
-+    CCFLAGS           => '-D_REENTRANT -D_GNU_SOURCE -O2 -pipe -Wall -fexceptions -fPIC -march=i586 -mindirect-branch=thunk -mfunction-return=thunk -mtune=generic -fomit-frame-pointer -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector -fwrapv -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
- 	# Un-comment this if you add C files to link with later:
-     # OBJECT            => '$(O_FILES)', # link all the C files too
- );

src/patches/rng-tools-6-Enable-RDRAND-for-i586-too.patch

@@ -1,35 +0,0 @@
-From 1f023b49959aa58246e6bb7091ba7710116f6915 Mon Sep 17 00:00:00 2001
-From: Michael Tremer <michael.tremer@ipfire.org>
-Date: Sun, 9 Sep 2018 17:29:15 +0100
-Subject: [PATCH] Enable RDRAND for i586, too
-
-IPFire is being compiled for i586 omitting some instructions
-for i686. However, RDRAND is available on some systems and
-can of course be used.
-
-Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
-
-Pull request sent: https://github.com/nhorman/rng-tools/pull/31
-
----
- configure.ac | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/configure.ac b/configure.ac
-index faba7cc9857e..716175328ff6 100644
---- a/configure.ac
-+++ b/configure.ac
-@@ -53,8 +53,8 @@ AC_CHECK_TOOLS([AR], [ar gar], :)
- 
- AX_PTHREAD
- 
--AM_CONDITIONAL([RDRAND], [test $target_cpu = x86_64 -o $target_cpu = i686])
--AS_IF([test $target_cpu = x86_64 -o $target_cpu = i686], [AC_DEFINE([HAVE_RDRAND],1,[Enable RDRAND])],[])
-+AM_CONDITIONAL([RDRAND], [test $target_cpu = x86_64 -o $target_cpu = i686 -o $target_cpu = i586])
-+AS_IF([test $target_cpu = x86_64 -o $target_cpu = i686 -o $target_cpu = i586], [AC_DEFINE([HAVE_RDRAND],1,[Enable RDRAND])],[])
- 
- AM_CONDITIONAL([DARN], [test $target_cpu = powerpc64le])
- AS_IF([test $target_cpu = powerpc64le], [AC_DEFINE([HAVE_DARN],1,[Enable DARN])],[])
--- 
-2.17.1
-

src/scripts/backupiso

@@ -9,9 +9,6 @@ arch=$(uname -m)
 case "${arch}" in
 	aarch64|x86_64)
 		;;
-	i?86)
-		arch="i586"
-		;;
 	*)
 		echo "Arch is not supported" >&2
 		exit 1