From f441ec5c3570ad92fa8fa50dda45381c7b1926cc Mon Sep 17 00:00:00 2001
From: Alexey Nagaev <aleksei.nagaev@onlyoffice.com>
Date: Thu, 3 Apr 2025 03:02:37 +0300
Subject: [PATCH] Testing clang build

---
 Common/3dParty/boost/boost.pri                |  5 +++
 Common/base.pri                               | 33 ++++++++++++++++++-
 DesktopEditor/graphics/pro/raster.pri         |  4 +++
 .../raster/Metafile/Common/MetaFileTypes.h    |  1 +
 DesktopEditor/xml/build/qt/libxml2.pri        |  4 +++
 OfficeUtils/OfficeUtils.pri                   |  3 ++
 6 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/Common/3dParty/boost/boost.pri b/Common/3dParty/boost/boost.pri
index 7a0278cea4..1e6a683ad5 100644
--- a/Common/3dParty/boost/boost.pri
+++ b/Common/3dParty/boost/boost.pri
@@ -4,6 +4,11 @@ CORE_BOOST_LIBS = $$PWD/build/$$CORE_BUILDS_PLATFORM_PREFIX/lib
 core_ios:CONFIG += disable_enum_constexpr_conversion
 core_android:CONFIG += disable_enum_constexpr_conversion
 core_mac:CONFIG += disable_enum_constexpr_conversion
+core_linux_clang:CONFIG += disable_enum_constexpr_conversion
+
+core_linux_clang {
+    DEFINES += _LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION
+}
 
 core_android {
     INCLUDEPATH += $$PWD/build/android/include
diff --git a/Common/base.pri b/Common/base.pri
index e8dc81b132..1a0473e98a 100644
--- a/Common/base.pri
+++ b/Common/base.pri
@@ -109,6 +109,35 @@ win32:!contains(QMAKE_TARGET.arch, x86_64): {
 	CONFIG += core_win_32
 }
 
+linux-clang-libc++ {
+    CONFIG += core_linux
+	CONFIG += core_linux_64
+	CONFIG += core_linux_clang
+	message("linux-64-clang-libc++")
+}
+linux-clang-libc++-32 {
+    CONFIG += core_linux
+	CONFIG += core_linux_32
+	CONFIG += core_linux_clang
+	message("linux-32-clang-libc++")
+}
+linux-clang {
+	CONFIG += core_linux
+	CONFIG += core_linux_64
+	CONFIG += core_linux_clang
+	message("linux-64-clang")
+}
+linux-clang-32 {
+	CONFIG += core_linux
+	CONFIG += core_linux_32
+	CONFIG += core_linux_clang
+	message("linux-32-clang")
+}
+
+core_linux_clang {
+    CONFIG += c++1z
+}
+
 linux-g++ {
 	CONFIG += core_linux
 linux-g++:contains(QMAKE_HOST.arch, x86_64): {
@@ -246,9 +275,11 @@ core_linux {
 }
 
 core_linux {
+!core_linux_clang {
 	equals(TEMPLATE, app):CONFIG += core_static_link_libstd
 	plugin:CONFIG += core_static_link_libstd
 }
+}
 
 core_win_32 {
 	CORE_BUILDS_PLATFORM_PREFIX = win_32
@@ -414,7 +445,7 @@ core_windows:CONFIG += no_batch
 message($$CORE_BUILDS_PLATFORM_PREFIX/$$CORE_BUILDS_CONFIGURATION_PREFIX)
 
 # COMPILER
-CONFIG += c++11
+# CONFIG += c++11
 
 !core_windows {
 	QMAKE_CXXFLAGS += -Wno-register
diff --git a/DesktopEditor/graphics/pro/raster.pri b/DesktopEditor/graphics/pro/raster.pri
index f5e54810fc..28d4b2d2d8 100644
--- a/DesktopEditor/graphics/pro/raster.pri
+++ b/DesktopEditor/graphics/pro/raster.pri
@@ -19,6 +19,10 @@ core_linux {
 	QMAKE_CXXFLAGS += -Wno-narrowing
 }
 
+core_linux_clang {
+    QMAKE_CFLAGS += -Wno-incompatible-function-pointer-types
+}
+
 core_mac {
 	DEFINES += HAVE_UNISTD_H HAVE_FCNTL_H
 }
diff --git a/DesktopEditor/raster/Metafile/Common/MetaFileTypes.h b/DesktopEditor/raster/Metafile/Common/MetaFileTypes.h
index 09ff44864a..e3ec2d110b 100644
--- a/DesktopEditor/raster/Metafile/Common/MetaFileTypes.h
+++ b/DesktopEditor/raster/Metafile/Common/MetaFileTypes.h
@@ -34,6 +34,7 @@
 
 #include <string>
 #include <cfloat>
+#include <cmath>
 #include "../../../common/StringExt.h"
 
 #ifndef BYTE
diff --git a/DesktopEditor/xml/build/qt/libxml2.pri b/DesktopEditor/xml/build/qt/libxml2.pri
index 960bacfa1a..1cfa7555a9 100644
--- a/DesktopEditor/xml/build/qt/libxml2.pri
+++ b/DesktopEditor/xml/build/qt/libxml2.pri
@@ -1,3 +1,7 @@
+core_linux_clang {
+    QMAKE_CFLAGS += -std=c99
+}
+
 DEFINES += HAVE_VA_COPY
 
 core_static_link_xml_full {
diff --git a/OfficeUtils/OfficeUtils.pri b/OfficeUtils/OfficeUtils.pri
index b4e1f497a8..232efd8f4e 100644
--- a/OfficeUtils/OfficeUtils.pri
+++ b/OfficeUtils/OfficeUtils.pri
@@ -5,6 +5,9 @@ core_mac {
     QMAKE_CXXFLAGS += -Wall -Wno-ignored-qualifiers
     DEFINES += unix
 }
+core_linux_clang {
+    QMAKE_CFLAGS += -Wno-implicit-function-declaration
+}
 
 build_zlib_as_sources {
     DEFINES += BUILD_ZLIB_AS_SOURCES