commit:     0e119d6ee286d0274b66e660f31a4272a069c32d
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Sun Sep 11 16:25:38 2022 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Sun Sep 11 16:25:38 2022 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0e119d6e

sys-libs/pam: fix configure with Clang 15

Would give wrong result in spool dir test otherwise.

Signed-off-by: Sam James <sam <AT> gentoo.org>

 ...am-1.5.2-clang-15-configure-implicit-func.patch |  29 ++++
 sys-libs/pam/pam-1.5.2-r3.ebuild                   | 148 +++++++++++++++++++++
 2 files changed, 177 insertions(+)

diff --git 
a/sys-libs/pam/files/pam-1.5.2-clang-15-configure-implicit-func.patch 
b/sys-libs/pam/files/pam-1.5.2-clang-15-configure-implicit-func.patch
new file mode 100644
index 000000000000..5ad7b8c4776e
--- /dev/null
+++ b/sys-libs/pam/files/pam-1.5.2-clang-15-configure-implicit-func.patch
@@ -0,0 +1,29 @@
+https://github.com/linux-pam/linux-pam/pull/490
+
+From 5fccc4cbac82b4677af28b59e7a657c86acab7fc Mon Sep 17 00:00:00 2001
+From: Sam James <s...@gentoo.org>
+Date: Sun, 11 Sep 2022 16:37:59 +0100
+Subject: [PATCH] configure.ac: fix implicit function declaration in mail spool
+ directory check
+
+Fixes the following error with Clang 15 (which makes implicit function
+declarations an error by default):
+```
++error: call to undeclared library function 'exit' with type 'void (int) 
__attribute__((noreturn))'; ISO C99 and later do not support implicit function 
declarations [-Wimplicit-function-declaration]
+ exit(0);
+ ^
+ note: include the header <stdlib.h> or explicitly provide a declaration for 
'exit'
+```
+
+Signed-off-by: Sam James <s...@gentoo.org>
+--- a/configure.ac
++++ b/configure.ac
+@@ -297,6 +297,7 @@ if test x$with_mailspool != x ; then
+ else
+       AC_RUN_IFELSE([AC_LANG_SOURCE([[
+ #include <paths.h>
++#include <stdlib.h>
+ int main() {
+ #ifdef _PATH_MAILDIR
+ exit(0);
+

diff --git a/sys-libs/pam/pam-1.5.2-r3.ebuild b/sys-libs/pam/pam-1.5.2-r3.ebuild
new file mode 100644
index 000000000000..f2636469a82f
--- /dev/null
+++ b/sys-libs/pam/pam-1.5.2-r3.ebuild
@@ -0,0 +1,148 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+MY_P="Linux-${PN^^}-${PV}"
+
+# Avoid QA warnings
+# Can reconsider w/ EAPI 8 and IDEPEND, bug #810979
+TMPFILES_OPTIONAL=1
+
+inherit autotools db-use fcaps flag-o-matic toolchain-funcs usr-ldscript 
multilib-minimal
+
+DESCRIPTION="Linux-PAM (Pluggable Authentication Modules)"
+HOMEPAGE="https://github.com/linux-pam/linux-pam";
+
+SRC_URI="https://github.com/linux-pam/linux-pam/releases/download/v${PV}/${MY_P}.tar.xz
+       
https://github.com/linux-pam/linux-pam/releases/download/v${PV}/${MY_P}-docs.tar.xz";
+
+LICENSE="|| ( BSD GPL-2 )"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 
~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux"
+IUSE="audit berkdb debug nis selinux"
+
+BDEPEND="
+       dev-libs/libxslt
+       sys-devel/flex
+       sys-devel/gettext
+       virtual/pkgconfig
+       virtual/yacc
+"
+
+DEPEND="
+       virtual/libcrypt:=[${MULTILIB_USEDEP}]
+       >=virtual/libintl-0-r1[${MULTILIB_USEDEP}]
+       audit? ( >=sys-process/audit-2.2.2[${MULTILIB_USEDEP}] )
+       berkdb? ( >=sys-libs/db-4.8.30-r1:=[${MULTILIB_USEDEP}] )
+       selinux? ( >=sys-libs/libselinux-2.2.2-r4[${MULTILIB_USEDEP}] )
+       nis? ( net-libs/libnsl:=[${MULTILIB_USEDEP}]
+       >=net-libs/libtirpc-0.2.4-r2:=[${MULTILIB_USEDEP}] )"
+
+RDEPEND="${DEPEND}"
+
+PDEPEND=">=sys-auth/pambase-20200616"
+
+S="${WORKDIR}/${MY_P}"
+
+PATCHES=(
+       "${FILESDIR}"/${PN}-1.5.1-musl.patch
+       "${FILESDIR}"/${PN}-1.5.2-clang-15-configure-implicit-func.patch
+)
+
+src_prepare() {
+       default
+       touch ChangeLog || die
+       eautoreconf
+}
+
+multilib_src_configure() {
+       # Do not let user's BROWSER setting mess us up. #549684
+       unset BROWSER
+
+       # This whole weird has_version libxcrypt block can go once
+       # musl systems have libxcrypt[system] if we ever make
+       # that mandatory. See bug #867991.
+       if use elibc_musl && ! has_version sys-libs/libxcrypt[system] ; then
+               # Avoid picking up symbol-versioned compat symbol on musl 
systems
+               export ac_cv_search_crypt_gensalt_rn=no
+
+               # Need to avoid picking up the libxcrypt headers which define
+               # CRYPT_GENSALT_IMPLEMENTS_AUTO_ENTROPY.
+               cp "${ESYSROOT}"/usr/include/crypt.h "${T}"/crypt.h || die
+               append-cppflags -I"${T}"
+       fi
+
+       local myconf=(
+               CC_FOR_BUILD="$(tc-getBUILD_CC)"
+               --with-db-uniquename=-$(db_findver sys-libs/db)
+               --with-xml-catalog="${EPREFIX}"/etc/xml/catalog
+               --enable-securedir="${EPREFIX}"/$(get_libdir)/security
+               --includedir="${EPREFIX}"/usr/include/security
+               --libdir="${EPREFIX}"/usr/$(get_libdir)
+               --enable-pie
+               --enable-unix
+               --disable-prelude
+               --disable-doc
+               --disable-regenerate-docu
+               --disable-static
+               --disable-Werror
+               $(use_enable audit)
+               $(use_enable berkdb db)
+               $(use_enable debug)
+               $(use_enable nis)
+               $(use_enable selinux)
+               --enable-isadir='.' #464016
+               )
+       ECONF_SOURCE="${S}" econf "${myconf[@]}"
+}
+
+multilib_src_compile() {
+       emake sepermitlockdir="/run/sepermit"
+}
+
+multilib_src_install() {
+       emake DESTDIR="${D}" install \
+               sepermitlockdir="/run/sepermit"
+
+       gen_usr_ldscript -a pam pam_misc pamc
+}
+
+multilib_src_install_all() {
+       find "${ED}" -type f -name '*.la' -delete || die
+
+       # tmpfiles.eclass is impossible to use because
+       # there is the pam -> tmpfiles -> systemd -> pam dependency loop
+
+       dodir /usr/lib/tmpfiles.d
+
+       cat ->>  "${D}"/usr/lib/tmpfiles.d/${CATEGORY}-${PN}.conf <<-_EOF_
+               d /run/faillock 0755 root root
+       _EOF_
+       use selinux && cat ->>  
"${D}"/usr/lib/tmpfiles.d/${CATEGORY}-${PN}-selinux.conf <<-_EOF_
+               d /run/sepermit 0755 root root
+       _EOF_
+
+       local page
+
+       for page in doc/man/*.{3,5,8} modules/*/*.{5,8} ; do
+               doman ${page}
+       done
+}
+
+pkg_postinst() {
+       ewarn "Some software with pre-loaded PAM libraries might experience"
+       ewarn "warnings or failures related to missing symbols and/or versions"
+       ewarn "after any update. While unfortunate this is a limit of the"
+       ewarn "implementation of PAM and the software, and it requires you to"
+       ewarn "restart the software manually after the update."
+       ewarn ""
+       ewarn "You can get a list of such software running a command like"
+       ewarn "  lsof / | grep -E -i 'del.*libpam\\.so'"
+       ewarn ""
+       ewarn "Alternatively, simply reboot your system."
+
+       # The pam_unix module needs to check the password of the user which 
requires
+       # read access to /etc/shadow only.
+       fcaps cap_dac_override sbin/unix_chkpwd
+}

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