Adding upstream version 19.2.0.upstream/19.2.0upstream

Signed-off-by: Daniel Baumann <daniel@debian.org>

1 files changed, 136 insertions, 0 deletions

diff --git a/mingw_conf.sh b/mingw_conf.sh
new file mode 100644
index 000000000..a03eb95dd
--- /dev/null
+++ b/mingw_conf.sh
@@ -0,0 +1,136 @@
+#!/usr/bin/env bash
+
+# MINGW Settings:
+# Due to inconsistencies between distributions, mingw versions, binaries,
+# and directories must be determined (or defined) prior to building.
+
+# This script expects the following variables:
+# * OS - currently ubuntu, rhel, or suse. In the future we may attempt to
+#   detect the platform.
+# * MINGW_CMAKE_FILE - if set, a cmake toolchain file will be created
+# * MINGW_POSIX_FLAGS - if set, Mingw Posix compatibility mode will be
+#                       enabled by defining the according flags.
+# * USE_MINGW_LLVM - allows using the mingw llvm toolchain
+# * MINGW_LLVM_DIR - allows specifying the mingw-llvm toolchain location.
+#                    If unset, we'll use the default path from build.deps.
+
+SCRIPT_DIR="$(dirname "$BASH_SOURCE")"
+SCRIPT_DIR="$(realpath "$SCRIPT_DIR")"
+
+MINGW_CMAKE_FILE=${MINGW_CMAKE_FILE:-}
+MINGW_POSIX_FLAGS=${MINGW_POSIX_FLAGS:-}
+
+if [[ -n $USE_MINGW_LLVM ]]; then
+    MINGW_LLVM_DIR=${MINGW_LLVM_DIR:-"$SCRIPT_DIR/build.deps/mingw-llvm"}
+fi
+
+# -Common mingw settings-
+MINGW_PREFIX="x86_64-w64-mingw32-"
+MINGW_BASE="x86_64-w64-mingw32"
+MINGW_CPP="${MINGW_BASE}-c++"
+MINGW_DLLTOOL="${MINGW_BASE}-dlltool"
+MINGW_WINDRES="${MINGW_BASE}-windres"
+MINGW_STRIP="${MINGW_BASE}-strip"
+MINGW_OBJCOPY="${MINGW_BASE}-objcopy"
+
+if [[ -n $USE_MINGW_LLVM ]]; then
+    # This package isn't currently provided by Linux distributions, we're
+    # fetching it from Github.
+    export PATH="$MINGW_LLVM_DIR/bin:$PATH"
+    mingwPosix=""
+    mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
+    mingwX64IncludeDir="$MINGW_LLVM_DIR/x86_64-w64-mingw32/include"
+    mingwX64BinDir="$MINGW_LLVM_DIR/x86_64-w64-mingw32/bin"
+    mingwX64LibDir="$MINGW_LLVM_DIR/x86_64-w64-mingw32/lib"
+    mingwTargetLibDir="$mingwX64BinDir"
+    mingwLibpthreadDir="$mingwX64BinDir"
+    PTW32Include="$mingwX64IncludeDir"
+    PTW32Lib="$mingwX64LibDir"
+
+    MINGW_CC="${MINGW_BASE}-clang${mingwPosix}"
+    MINGW_CXX="${MINGW_BASE}-clang++${mingwPosix}"
+
+    MINGW_FIND_ROOT_PATH="$MINGW_LLVM_DIR/x86_64-w64-mingw32"
+else
+    # -Distribution specific mingw settings-
+    case "$OS" in
+        ubuntu)
+            mingwPosix="-posix"
+            mingwLibDir="/usr/lib/gcc"
+            mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
+            mingwTargetLibDir="${mingwLibDir}/${MINGW_BASE}/${mingwVersion}"
+            mingwLibpthreadDir="/usr/${MINGW_BASE}/lib"
+            PTW32Include=/usr/share/mingw-w64/include
+            PTW32Lib=/usr/x86_64-w64-mingw32/lib
+            ;;
+        rhel)
+            mingwPosix=""
+            mingwLibDir="/usr/lib64/gcc"
+            mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
+            mingwTargetLibDir="/usr/${MINGW_BASE}/sys-root/mingw/bin"
+            mingwLibpthreadDir="$mingwTargetLibDir"
+            PTW32Include=/usr/x86_64-w64-mingw32/sys-root/mingw/include
+            PTW32Lib=/usr/x86_64-w64-mingw32/sys-root/mingw/lib
+            ;;
+        suse)
+            mingwPosix=""
+            mingwLibDir="/usr/lib64/gcc"
+            mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
+            mingwTargetLibDir="/usr/${MINGW_BASE}/sys-root/mingw/bin"
+            mingwLibpthreadDir="$mingwTargetLibDir"
+            PTW32Include=/usr/x86_64-w64-mingw32/sys-root/mingw/include
+            PTW32Lib=/usr/x86_64-w64-mingw32/sys-root/mingw/lib
+            ;;
+        *)
+            echo "$ID is unknown, automatic mingw configuration is not possible."
+            exit 1
+            ;;
+    esac
+    MINGW_CC="${MINGW_BASE}-gcc${mingwPosix}"
+    MINGW_CXX="${MINGW_BASE}-g++${mingwPosix}"
+
+    # -Common mingw settings, dependent upon distribution specific settings-
+    MINGW_FIND_ROOT_LIB_PATH="${mingwLibDir}/${MINGW_BASE}/${mingwVersion}"
+    MINGW_FIND_ROOT_PATH="/usr/${MINGW_BASE} ${MINGW_FIND_ROOT_LIB_PATH}"
+fi
+# End MINGW configuration
+
+
+if [[ -n $MINGW_CMAKE_FILE ]]; then
+    cat > $MINGW_CMAKE_FILE <<EOL
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR x86_64)
+
+# We'll need to use posix threads in order to use
+# C++11 features, such as std::thread.
+set(CMAKE_C_COMPILER ${MINGW_CC})
+set(CMAKE_CXX_COMPILER ${MINGW_CXX})
+set(CMAKE_RC_COMPILER ${MINGW_WINDRES})
+
+set(CMAKE_FIND_ROOT_PATH ${MINGW_FIND_ROOT_PATH})
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+# TODO: consider switching this to "ONLY". The issue with
+# that is that all our libs should then be under
+# CMAKE_FIND_ROOT_PATH and CMAKE_PREFIX_PATH would be ignored.
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH)
+EOL
+    if [[ -n $MINGW_POSIX_FLAGS ]]; then
+        cat >> $MINGW_CMAKE_FILE <<EOL
+# Some functions (e.g. localtime_r) will not be available unless we set
+# the following flag.
+add_definitions(-D_POSIX=1)
+add_definitions(-D_POSIX_C_SOURCE=1)
+add_definitions(-D_POSIX_=1)
+add_definitions(-D_POSIX_THREADS=1)
+EOL
+    fi
+
+    if [[ -n $USE_MINGW_LLVM ]]; then
+        cat >> $MINGW_CMAKE_FILE <<EOL
+add_definitions(-I$mingwX64IncludeDir)
+add_compile_options(-march=native)
+add_compile_options(-Wno-unknown-attributes)
+EOL
+    fi
+fi