sys-fs/fuse: fix build with glibc 2.34

Backporting the same patch which is now upstream,
converted to patches for autotools changes rather
than sed for further changes.

Bug: https://bugs.gentoo.org/438250
Closes: https://bugs.gentoo.org/803923
Signed-off-by: Sam James <sam@gentoo.org>

3 files changed, 110 insertions, 10 deletions

diff --git a/sys-fs/fuse/files/fuse-2.9.9-avoid-calling-umount.patch b/sys-fs/fuse/files/fuse-2.9.9-avoid-calling-umount.patch
new file mode 100644
index 000000000000..b5c141d29ed0
--- /dev/null
+++ b/sys-fs/fuse/files/fuse-2.9.9-avoid-calling-umount.patch
@@ -0,0 +1,38 @@
+From acb69eca6c25db44523efb4cb1e7088ae66d093d Mon Sep 17 00:00:00 2001
+From: Sam James <sam@gentoo.org>
+Date: Tue, 3 Aug 2021 23:14:12 +0100
+Subject: [PATCH] Avoid calling umount
+
+Converting a sed into a patch.
+
+Ebuild had:
+	# sandbox violation with mtab writability wrt #438250
+	# don't sed configure.in without eautoreconf because of maintainer mode
+	sed -i 's:umount --fake:true --fake:' configure || die
+
+Bug: https://bugs.gentoo.org/438250
+---
+ configure.ac | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 9946a0e..de433cb 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -101,11 +101,11 @@ util_linux_ok=yes
+ if test "$arch" = linux -a "$cross_compiling" != "yes"; then
+ 	AC_MSG_CHECKING([if umount supports --fake --no-canonicalize])
+ 	# exit code of umount is 1 if option is unrecognised, 2 otherwise
+-	umount --fake --no-canonicalize > /dev/null 2>&1
++	true --fake --no-canonicalize > /dev/null 2>&1
+ 	if test $? != 1; then
+ 		AC_MSG_RESULT([yes])
+ 	else
+-		firstline=`umount --fake --no-canonicalize 2>&1 | head -1`
++		firstline=`true --fake --no-canonicalize 2>&1 | head -1`
+ 		if test "$firstline" = 'umount: only root can use "--fake" option'; then
+ 			AC_MSG_RESULT([yes])
+ 		else
+-- 
+2.32.0
+
diff --git a/sys-fs/fuse/files/fuse-2.9.9-closefrom-glibc-2-34.patch b/sys-fs/fuse/files/fuse-2.9.9-closefrom-glibc-2-34.patch
new file mode 100644
index 000000000000..beb8d51da1ee
--- /dev/null
+++ b/sys-fs/fuse/files/fuse-2.9.9-closefrom-glibc-2-34.patch
@@ -0,0 +1,60 @@
+From ae2352bca9b4e607538412da0cc2a9625cd8b692 Mon Sep 17 00:00:00 2001
+From: Sam James <sam@gentoo.org>
+Date: Sat, 24 Jul 2021 22:02:45 +0100
+Subject: [PATCH] util/ulockmgr_server.c: conditionally define closefrom (fix
+ glibc-2.34+)
+
+closefrom(3) has joined us in glibc-land from *BSD and Solaris. Since
+it's available in glibc 2.34+, we want to detect it and only define our
+fallback if the libc doesn't provide it.
+
+Bug: https://bugs.gentoo.org/803923
+Signed-off-by: Sam James <sam@gentoo.org>
+---
+ configure.ac           | 1 +
+ util/ulockmgr_server.c | 6 ++++++
+ 2 files changed, 7 insertions(+)
+
+diff --git a/configure.ac b/configure.ac
+index 9946a0efa..a2d481aa9 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -55,6 +55,7 @@ fi
+ 
+ AC_CHECK_FUNCS([fork setxattr fdatasync splice vmsplice utimensat])
+ AC_CHECK_FUNCS([posix_fallocate])
++AC_CHECK_FUNCS([closefrom])
+ AC_CHECK_MEMBERS([struct stat.st_atim])
+ AC_CHECK_MEMBERS([struct stat.st_atimespec])
+ 
+diff --git a/util/ulockmgr_server.c b/util/ulockmgr_server.c
+index 273c7d923..a04dac5c6 100644
+--- a/util/ulockmgr_server.c
++++ b/util/ulockmgr_server.c
+@@ -22,6 +22,10 @@
+ #include <sys/socket.h>
+ #include <sys/wait.h>
+ 
++#ifdef HAVE_CONFIG_H
++	#include "config.h"
++#endif
++
+ struct message {
+ 	unsigned intr : 1;
+ 	unsigned nofd : 1;
+@@ -124,6 +128,7 @@ static int receive_message(int sock, void *buf, size_t buflen, int *fdp,
+ 	return res;
+ }
+ 
++#if !defined(HAVE_CLOSEFROM)
+ static int closefrom(int minfd)
+ {
+ 	DIR *dir = opendir("/proc/self/fd");
+@@ -141,6 +146,7 @@ static int closefrom(int minfd)
+ 	}
+ 	return 0;
+ }
++#endif
+ 
+ static void send_reply(int cfd, struct message *msg)
+ {
diff --git a/sys-fs/fuse/fuse-2.9.9-r1.ebuild b/sys-fs/fuse/fuse-2.9.9-r1.ebuild
index aaf77a867a81..d7a2b42e6113 100644
--- a/sys-fs/fuse/fuse-2.9.9-r1.ebuild
+++ b/sys-fs/fuse/fuse-2.9.9-r1.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit flag-o-matic libtool linux-info udev
+inherit autotools flag-o-matic linux-info udev
 
 DESCRIPTION="An interface for filesystems implemented in userspace"
 HOMEPAGE="https://github.com/libfuse/libfuse"
@@ -18,6 +18,12 @@ PDEPEND="kernel_FreeBSD? ( sys-fs/fuse4bsd )"
 BDEPEND="virtual/pkgconfig"
 RDEPEND=">=sys-fs/fuse-common-3.3.0-r1"
 
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.9.3-kernel-types.patch
+	"${FILESDIR}"/${PN}-2.9.9-avoid-calling-umount.patch
+	"${FILESDIR}"/${PN}-2.9.9-closefrom-glibc-2-34.patch
+)
+
 pkg_setup() {
 	if use kernel_linux ; then
 		if kernel_is lt 2 6 9 ; then
@@ -30,21 +36,17 @@ pkg_setup() {
 }
 
 src_prepare() {
-	local PATCHES=( "${FILESDIR}"/${PN}-2.9.3-kernel-types.patch )
-	# sandbox violation with mtab writability wrt #438250
-	# don't sed configure.in without eautoreconf because of maintainer mode
-	sed -i 's:umount --fake:true --fake:' configure || die
-	elibtoolize
+	default
 
+	eautoreconf
+}
+
+src_configure() {
 	# lto not supported yet -- https://github.com/libfuse/libfuse/issues/198
 	# gcc-9 with -flto leads to link failures: #663518,
 	# https://gcc.gnu.org/PR91186
 	filter-flags -flto*
 
-	default
-}
-
-src_configure() {
 	econf \
 		INIT_D_PATH="${EPREFIX}/etc/init.d" \
 		MOUNT_FUSE_PATH="${EPREFIX}/sbin" \