9 files changed, 22 insertions, 2 deletions
diff --git a/mkspecs/common/clang.conf b/mkspecs/common/clang.conf
index 5800aaa5b4..df210fe42d 100644
--- a/mkspecs/common/clang.conf
+++ b/mkspecs/common/clang.conf
@@ -31,9 +31,11 @@ QMAKE_CXXFLAGS_DISABLE_LTCG      = $$QMAKE_CFLAGS_DISABLE_LTCG
 QMAKE_CXXFLAGS_CXX11             = -std=c++11
 QMAKE_CXXFLAGS_CXX14             = -std=c++1y
 QMAKE_CXXFLAGS_CXX1Z             = -std=c++1z
+QMAKE_CXXFLAGS_CXX2A             = -std=c++2a
 QMAKE_CXXFLAGS_GNUCXX11          = -std=gnu++11
 QMAKE_CXXFLAGS_GNUCXX14          = -std=gnu++1y
 QMAKE_CXXFLAGS_GNUCXX1Z          = -std=gnu++1z
+QMAKE_CXXFLAGS_GNUCXX2A          = -std=gnu++2a
 
 QMAKE_LFLAGS_CXX11      =
 QMAKE_LFLAGS_CXX14      =
@@ -44,3 +46,7 @@ QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
 QMAKE_AR_LTCG           = llvm-ar cqs
 QMAKE_NM_LTCG           = llvm-nm -P
 QMAKE_RANLIB_LTCG       = true      # No need to run, since llvm-ar has "s"
+
+QMAKE_CFLAGS_COVERAGE_TRACE_PC_GUARD   = -fsanitize-coverage=trace-pc-guard
+QMAKE_CXXFLAGS_COVERAGE_TRACE_PC_GUARD = -fsanitize-coverage=trace-pc-guard
+QMAKE_LFLAGS_COVERAGE_TRACE_PC_GUARD   = -fsanitize-coverage=trace-pc-guard
diff --git a/mkspecs/common/g++-base.conf b/mkspecs/common/g++-base.conf
index fa0f0c391d..8053feb876 100644
--- a/mkspecs/common/g++-base.conf
+++ b/mkspecs/common/g++-base.conf
@@ -32,9 +32,11 @@ QMAKE_CFLAGS_GNUC11     = -std=gnu11
 QMAKE_CXXFLAGS_CXX11    = -std=c++11
 QMAKE_CXXFLAGS_CXX14    = -std=c++1y
 QMAKE_CXXFLAGS_CXX1Z    = -std=c++1z
+QMAKE_CXXFLAGS_CXX2A    = -std=c++2a
 QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++11
 QMAKE_CXXFLAGS_GNUCXX14 = -std=gnu++1y
 QMAKE_CXXFLAGS_GNUCXX1Z = -std=gnu++1z
+QMAKE_CXXFLAGS_GNUCXX2A = -std=gnu++2a
 QMAKE_LFLAGS_CXX11      =
 QMAKE_LFLAGS_CXX14      =
 QMAKE_LFLAGS_CXX1Z      =
diff --git a/mkspecs/common/g++-win32.conf b/mkspecs/common/g++-win32.conf
index f0df324b64..c3a1f3a373 100644
--- a/mkspecs/common/g++-win32.conf
+++ b/mkspecs/common/g++-win32.conf
@@ -31,8 +31,6 @@ QMAKE_YACCFLAGS         = -d
 
 QMAKE_CFLAGS_SSE2      += -mstackrealign
 
-QMAKE_CXXFLAGS_RTTI_ON  = -frtti
-QMAKE_CXXFLAGS_RTTI_OFF = -fno-rtti
 QMAKE_CXXFLAGS_EXCEPTIONS_ON = -fexceptions -mthreads
 
 QMAKE_INCDIR            =
diff --git a/mkspecs/common/gcc-base-unix.conf b/mkspecs/common/gcc-base-unix.conf
index 700f228c36..a456c8f3eb 100644
--- a/mkspecs/common/gcc-base-unix.conf
+++ b/mkspecs/common/gcc-base-unix.conf
@@ -20,7 +20,9 @@ QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
 QMAKE_LFLAGS_RPATHLINK  = -Wl,-rpath-link,
 QMAKE_LFLAGS_NEW_DTAGS  = -Wl,--enable-new-dtags
 QMAKE_LFLAGS_GDB_INDEX  = -Wl,--gdb-index
+QMAKE_LFLAGS_USE_BFD    = -fuse-ld=bfd
 QMAKE_LFLAGS_USE_GOLD   = -fuse-ld=gold
+QMAKE_LFLAGS_USE_LLD    = -fuse-ld=lld
 
 # -Bsymbolic-functions (ld) support
 QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
diff --git a/mkspecs/common/gcc-base.conf b/mkspecs/common/gcc-base.conf
index c2669e4833..44b4267207 100644
--- a/mkspecs/common/gcc-base.conf
+++ b/mkspecs/common/gcc-base.conf
@@ -68,6 +68,8 @@ QMAKE_CXXFLAGS_APP        += $$QMAKE_CFLAGS_APP
 QMAKE_CXXFLAGS_YACC       += $$QMAKE_CFLAGS_YACC
 QMAKE_CXXFLAGS_HIDESYMS   += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
 QMAKE_CXXFLAGS_EXCEPTIONS_OFF += $$QMAKE_CFLAGS_EXCEPTIONS_OFF
+QMAKE_CXXFLAGS_RTTI_ON     = -frtti
+QMAKE_CXXFLAGS_RTTI_OFF    = -fno-rtti
 QMAKE_CXXFLAGS_SPLIT_SECTIONS += $$QMAKE_CFLAGS_SPLIT_SECTIONS
 QMAKE_CXXFLAGS_LTCG        = $$QMAKE_CFLAGS_LTCG
 QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
diff --git a/mkspecs/common/msvc-desktop.conf b/mkspecs/common/msvc-desktop.conf
index c0d4bd2acc..0b94e5a3f5 100644
--- a/mkspecs/common/msvc-desktop.conf
+++ b/mkspecs/common/msvc-desktop.conf
@@ -115,4 +115,5 @@ VCSOLUTION_EXTENSION    = .sln
 VCPROJ_KEYWORD          = Qt4VSv1.0
 
 include(angle.conf)
+include(windows-desktop.conf)
 include(windows-vulkan.conf)
diff --git a/mkspecs/common/msvc-version.conf b/mkspecs/common/msvc-version.conf
index 06af6abf13..af33132077 100644
--- a/mkspecs/common/msvc-version.conf
+++ b/mkspecs/common/msvc-version.conf
@@ -116,6 +116,8 @@ greaterThan(QMAKE_MSC_VER, 1910) {
 greaterThan(QMAKE_MSC_VER, 1919) {
     # Visual Studio 2019 (16.0) / Visual C++ 19.20 and up
     MSVC_VER            = 16.0
+    QMAKE_CXXFLAGS_CXX2A = -std:c++latest
+
 }
 
 !isEmpty(COMPAT_MKSPEC):!$$COMPAT_MKSPEC: CONFIG += $$COMPAT_MKSPEC
diff --git a/mkspecs/common/windows-desktop.conf b/mkspecs/common/windows-desktop.conf
new file mode 100644
index 0000000000..c1f2955e1b
--- /dev/null
+++ b/mkspecs/common/windows-desktop.conf
@@ -0,0 +1,5 @@
+# This file contains initializations for Windows Desktop platforms (non-UWP)
+
+WINDOWS_TARGET_PLATFORM_VERSION = $$(WindowsSDKVersion)
+# The version number might have a trailing backslash due to a VS bug.
+WINDOWS_TARGET_PLATFORM_VERSION ~= s/\\\\$//
diff --git a/mkspecs/common/winrt_winphone/qmake.conf b/mkspecs/common/winrt_winphone/qmake.conf
index 375e084127..03fb96f2c5 100644
--- a/mkspecs/common/winrt_winphone/qmake.conf
+++ b/mkspecs/common/winrt_winphone/qmake.conf
@@ -97,6 +97,8 @@ WINRT_ASSETS_PATH       = $$PWD/assets
 WINRT_MANIFEST.capabilities = defaults
 WINRT_MANIFEST.capabilities_device = defaults
 
+WINDOWS_TARGET_PLATFORM_VERSION = $$(UCRTVERSION)
+
 include(../angle.conf)
 
 load(qt_config)