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package/syslog-ng: allow building with static libraries
Bring in an upstream patch to fix builds for targets which lack dlfcn.h
and revert "package/syslog-ng: depend on !BR2_STATIC_LIBS".
This reverts commit 44dbd2907c. Now that
upstream has different fix for the build issues with a static libc we
can re-enable syslog-ng on these systems.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Chris Packham
Thomas Petazzoni
parent
4d5d0124c7
commit
8cac823b00
160
package/syslog-ng/0002-build-make-dlsym-optional.patch
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160
package/syslog-ng/0002-build-make-dlsym-optional.patch
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@ -0,0 +1,160 @@
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From d85121c0dc700cad4bd9735b0ee1dab9addf9dd7 Mon Sep 17 00:00:00 2001
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From: Kokan <kokaipeter@gmail.com>
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Date: Thu, 17 Jan 2019 18:44:41 +0100
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Subject: [PATCH] build: make dlsym optional
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In case of static uClibc-ng lib, the <dlfcn.h> does not exists.
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The signal-handler.c solves an issue in case of program src/dst
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and Java destination. That combination is really rare if not impossible.
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This patch simply disables own sigaction if <dlfcn.h> is not present.
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Signed-off-by: Kokan <kokaipeter@gmail.com>
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Downloaded from upstream commit
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https://github.com/balabit/syslog-ng/commit/d85121c0dc700cad4bd9735b0ee1dab9addf9dd7
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Signed-off-by: Chris Packham <judge.packham@gmail.com>
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---
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CMakeLists.txt | 1 +
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configure.ac | 1 +
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lib/CMakeLists.txt | 1 -
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lib/Makefile.am | 1 -
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lib/signal-handler.c | 8 ++++----
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lib/signal-handler.h | 31 -------------------------------
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syslog-ng-config.h.in | 1 +
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7 files changed, 7 insertions(+), 37 deletions(-)
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delete mode 100644 lib/signal-handler.h
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diff --git a/CMakeLists.txt b/CMakeLists.txt
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index c847a547b..dee691388 100644
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--- a/CMakeLists.txt
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+++ b/CMakeLists.txt
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@@ -106,6 +106,7 @@ check_symbol_exists("getrandom" "sys/random.h" SYSLOG_NG_HAVE_GETRANDOM)
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check_include_files(utmp.h SYSLOG_NG_HAVE_UTMP_H)
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check_include_files(utmpx.h SYSLOG_NG_HAVE_UTMPX_H)
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+check_include_files(dlfcn.h SYSLOG_NG_HAVE_DLFCN_H)
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check_struct_has_member("struct utmpx" "ut_type" "utmpx.h" UTMPX_HAS_UT_TYPE LANGUAGE C)
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check_struct_has_member("struct utmp" "ut_type" "utmp.h" UTMP_HAS_UT_TYPE LANGUAGE C)
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diff --git a/configure.ac b/configure.ac
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index 6bdd8d252..6ef0ad2b4 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -627,6 +627,7 @@ dnl ***************************************************************************
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AC_HEADER_STDC
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AC_CHECK_HEADER(dmalloc.h)
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+AC_CHECK_HEADER(dlfcn.h)
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AC_CHECK_HEADERS(strings.h \
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getopt.h \
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stropts.h \
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diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
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index be2da32a4..5268712e9 100644
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--- a/lib/CMakeLists.txt
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+++ b/lib/CMakeLists.txt
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@@ -91,7 +91,6 @@ set (LIB_HEADERS
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logthrdestdrv.h
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logwriter.h
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mainloop.h
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- signal-handler.h
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mainloop-call.h
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mainloop-worker.h
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mainloop-io-worker.h
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diff --git a/lib/Makefile.am b/lib/Makefile.am
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index ec1928795..5f9e93d79 100644
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--- a/lib/Makefile.am
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+++ b/lib/Makefile.am
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@@ -129,7 +129,6 @@ pkginclude_HEADERS += \
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lib/logthrdestdrv.h \
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lib/logwriter.h \
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lib/mainloop.h \
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- lib/signal-handler.h \
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lib/mainloop-call.h \
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lib/mainloop-worker.h \
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lib/mainloop-io-worker.h \
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diff --git a/lib/signal-handler.c b/lib/signal-handler.c
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index 5657ba182..8f52f675b 100644
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--- a/lib/signal-handler.c
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+++ b/lib/signal-handler.c
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@@ -21,14 +21,15 @@
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* COPYING for details.
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*
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*/
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-#include "signal-handler.h"
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#include "syslog-ng.h"
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#include "children.h"
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-#ifndef _WIN32
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+#include <signal.h>
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+
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+#if SYSLOG_NG_HAVE_DLFCN_H
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+
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#include <dlfcn.h>
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-#endif
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static const struct sigaction *sgchld_handler;
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@@ -41,7 +42,6 @@ trigger_sigchld_handler_chain(int signum)
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}
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}
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-#ifndef _WIN32
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static int
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call_original_sigaction(int signum, const struct sigaction *act, struct sigaction *oldact)
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{
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diff --git a/lib/signal-handler.h b/lib/signal-handler.h
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deleted file mode 100644
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index 36e5ac293..000000000
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--- a/lib/signal-handler.h
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+++ /dev/null
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@@ -1,31 +0,0 @@
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-/*
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- * Copyright (c) 2018 Balabit
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- * Copyright (c) 2018 Kokan
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- *
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- * This library is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU Lesser General Public
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- * License as published by the Free Software Foundation; either
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- * version 2.1 of the License, or (at your option) any later version.
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- *
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- * This library is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- * Lesser General Public License for more details.
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- *
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- * You should have received a copy of the GNU Lesser General Public
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- * License along with this library; if not, write to the Free Software
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- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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- *
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- * As an additional exemption you are allowed to compile & link against the
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- * OpenSSL libraries as published by the OpenSSL project. See the file
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- * COPYING for details.
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- *
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- */
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-#ifndef SIGNAL_HANDLER_H_INCLUDED
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-#define SIGNAL_HANDLER_H_INCLUDED
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-
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-#include <signal.h>
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-
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-void trigger_sigchld_handler_chain(int);
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-
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-#endif
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diff --git a/syslog-ng-config.h.in b/syslog-ng-config.h.in
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index 9e372f103..d8208eedd 100644
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--- a/syslog-ng-config.h.in
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+++ b/syslog-ng-config.h.in
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@@ -38,6 +38,7 @@
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#cmakedefine SYSLOG_NG_PATH_XSDDIR "@SYSLOG_NG_PATH_XSDDIR@"
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#cmakedefine SYSLOG_NG_HAVE_GETUTENT @SYSLOG_NG_HAVE_GETUTENT@
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#cmakedefine SYSLOG_NG_HAVE_GETUTXENT @SYSLOG_NG_HAVE_GETUTXENT@
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+#cmakedefine SYSLOG_NG_HAVE_DLFCN_H @SYSLOG_NG_HAVE_DLFCN_H@
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#cmakedefine SYSLOG_NG_HAVE_UTMPX_H @SYSLOG_NG_HAVE_UTMPX_H@
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#cmakedefine SYSLOG_NG_HAVE_UTMP_H @SYSLOG_NG_HAVE_UTMP_H@
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#cmakedefine SYSLOG_NG_HAVE_MODERN_UTMP @SYSLOG_NG_HAVE_MODERN_UTMP@
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--
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2.20.1
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@ -3,7 +3,6 @@ config BR2_PACKAGE_SYSLOG_NG
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depends on BR2_USE_WCHAR # glib2
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depends on BR2_TOOLCHAIN_HAS_THREADS
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depends on BR2_USE_MMU # fork()
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depends on !BR2_STATIC_LIBS # dlfcn.h
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depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
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select BR2_PACKAGE_EVENTLOG
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select BR2_PACKAGE_LIBGLIB2
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@ -16,8 +15,7 @@ config BR2_PACKAGE_SYSLOG_NG
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https://syslog-ng.org/
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comment "syslog-ng needs a toolchain w/ dynamic library, wchar, threads"
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comment "syslog-ng needs a toolchain w/ wchar, threads"
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depends on BR2_USE_MMU
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depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
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BR2_STATIC_LIBS
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depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS
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depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
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