build: Use ld.lld as linker

.github/workflows/analysis.yml

@@ -42,10 +42,13 @@ jobs:
       run: |
         mkdir -p build
         cd build
-        CC=gcc-10 CXX=g++-10 cmake \
-          -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
+        CC=gcc-10 CXX=g++-10 cmake              \
+          -DCMAKE_BUILD_TYPE=$BUILD_TYPE        \
           -DCMAKE_INSTALL_PREFIX="$PWD/install" \
-          -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+          -DCMAKE_C_COMPILER_LAUNCHER=ccache    \
+          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache  \
+          -DCMAKE_C_FLAGS="-fuse-ld=lld"        \
+          -DCMAKE_CXX_FLAGS="-fuse-ld=lld"      \
           ..
         make -j 4 install
 

.github/workflows/build.yml

@@ -50,11 +50,14 @@ jobs:
       run: |
         mkdir -p build
         cd build
-        CC=gcc-10 CXX=g++-10 cmake \
-          -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
+        CC=gcc-10 CXX=g++-10 cmake              \
+          -DCMAKE_BUILD_TYPE=$BUILD_TYPE        \
           -DCMAKE_INSTALL_PREFIX="$PWD/install" \
-          -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
-          -DRUST_PATH="$HOME/.cargo/bin/" \
+          -DCMAKE_C_COMPILER_LAUNCHER=ccache    \
+          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache  \
+          -DCMAKE_C_FLAGS="-fuse-ld=lld"        \
+          -DCMAKE_CXX_FLAGS="-fuse-ld=lld"      \
+          -DRUST_PATH="$HOME/.cargo/bin/"       \
           ..
         make -j 4 install
 
@@ -128,6 +131,7 @@ jobs:
         msystem: mingw64
         pacboy: >-
           gcc:p
+          lld:p
           cmake:p
           make:p
           ccache:p
@@ -169,13 +173,16 @@ jobs:
         PYTHON_LIB_NAME=$(pkg-config --libs-only-l python3 | sed 's/^-l//' | sed 's/ //')
         PYTHON_LIB_PATH=$(cygpath -m $(which lib${PYTHON_LIB_NAME}.dll))
 
-        cmake -G "MinGW Makefiles" \
-          -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
-          -DCMAKE_INSTALL_PREFIX="$PWD/install" \
-          -DCREATE_PACKAGE=ON \
-          -DPython_LIBRARY="$PYTHON_LIB_PATH" \
-          -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
-          -DRUST_PATH="$USERPROFILE/.cargo/bin/" \
+        cmake -G "MinGW Makefiles"                \
+          -DCMAKE_BUILD_TYPE=$BUILD_TYPE          \
+          -DCMAKE_INSTALL_PREFIX="$PWD/install"   \
+          -DCREATE_PACKAGE=ON                     \
+          -DPython_LIBRARY="$PYTHON_LIB_PATH"     \
+          -DCMAKE_C_COMPILER_LAUNCHER=ccache      \
+          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache    \
+          -DCMAKE_C_FLAGS="-fuse-ld=lld"          \
+          -DCMAKE_CXX_FLAGS="-fuse-ld=lld"        \
+          -DRUST_PATH="$USERPROFILE/.cargo/bin/"  \
           ..
         mingw32-make -j4 install
         cpack
@@ -225,11 +232,14 @@ jobs:
         CXX=$(brew --prefix llvm)/bin/clang++ \
         PKG_CONFIG_PATH="$(brew --prefix openssl)/lib/pkgconfig":"$(brew --prefix)/lib/pkgconfig" \
         MACOSX_DEPLOYMENT_TARGET="10.15" \
-        cmake \
-          -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
-          -DCREATE_BUNDLE=ON \
-          -DCREATE_PACKAGE=ON \
-          -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+        cmake                                   \
+          -DCMAKE_BUILD_TYPE=$BUILD_TYPE        \
+          -DCREATE_BUNDLE=ON                    \
+          -DCREATE_PACKAGE=ON                   \
+          -DCMAKE_C_COMPILER_LAUNCHER=ccache    \
+          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache  \
+          -DCMAKE_C_FLAGS="-fuse-ld=lld"        \
+          -DCMAKE_CXX_FLAGS="-fuse-ld=lld"      \
           ..
         make -j4 package
 

.github/workflows/tests.yml

@@ -39,10 +39,13 @@ jobs:
       run: |
         mkdir -p build
         cd build
-        CC=gcc-10 CXX=g++-10 cmake \
-          -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
+        CC=gcc-10 CXX=g++-10 cmake              \
+          -DCMAKE_BUILD_TYPE=$BUILD_TYPE        \
           -DCMAKE_INSTALL_PREFIX="$PWD/install" \
-          -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+          -DCMAKE_C_COMPILER_LAUNCHER=ccache    \
+          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache  \
+          -DCMAKE_C_FLAGS="-fuse-ld=lld"        \
+          -DCMAKE_CXX_FLAGS="-fuse-ld=lld"      \
           ..
         make -j4 unit_tests install
 

dist/get_deps_archlinux.sh

@@ -1,11 +1,12 @@
 #!/usr/bin/env sh
 
 pacman -S --needed \
-  cmake \
-  gcc \
-  glfw \
-  file \
-  mbedtls \
-  python3 \
+  cmake     \
+  gcc       \
+  lld       \
+  glfw      \
+  file      \
+  mbedtls   \
+  python3   \
   freetype2 \
   gtk3

dist/get_deps_debian.sh

@@ -14,6 +14,7 @@ apt install -y \
   build-essential       \
   gcc-10                \
   g++-10                \
+  lld                   \
   ${PKGCONF:-}          \
   cmake                 \
   make                  \

dist/get_deps_fedora.sh

@@ -1,12 +1,13 @@
 #!/usr/bin/env sh
 
-dnf install \
-  cmake \
-  gcc-c++ \
-  file-devel \
-  glfw-devel \
-  mesa-libGL-devel \
-  mbedtls-devel \
-  python-devel \
-  freetype-devel \
+dnf install         \
+  cmake             \
+  gcc-c++           \
+  lld               \
+  file-devel        \
+  glfw-devel        \
+  mesa-libGL-devel  \
+  mbedtls-devel     \
+  python-devel      \
+  freetype-devel    \
   gtk3-devel

dist/get_deps_msys2.sh

@@ -1,13 +1,14 @@
 #!/usr/bin/env sh
 
-pacman -S --needed --noconfirm \
-  mingw-w64-x86_64-gcc \
-  mingw-w64-x86_64-cmake \
-  mingw-w64-x86_64-make \
-  mingw-w64-x86_64-ccache \
-  mingw-w64-x86_64-glfw \
-  mingw-w64-x86_64-file \
-  mingw-w64-x86_64-mbedtls \
-  mingw-w64-x86_64-python \
-  mingw-w64-x86_64-freetype \
+pacman -S --needed --noconfirm  \
+  mingw-w64-x86_64-gcc          \
+  mingw-w64-x86_64-lld          \
+  mingw-w64-x86_64-cmake        \
+  mingw-w64-x86_64-make         \
+  mingw-w64-x86_64-ccache       \
+  mingw-w64-x86_64-glfw         \
+  mingw-w64-x86_64-file         \
+  mingw-w64-x86_64-mbedtls      \
+  mingw-w64-x86_64-python       \
+  mingw-w64-x86_64-freetype     \
   mingw-w64-x86_64-dlfcn

dist/msys2/PKGBUILD

@@ -9,6 +9,7 @@ url="https://github.com/WerWolv/ImHex"
 license=('GPLv2')
 depends=("${MINGW_PACKAGE_PREFIX}-python")
 makedepends=("${MINGW_PACKAGE_PREFIX}-gcc"
+             "${MINGW_PACKAGE_PREFIX}-lld"
              "${MINGW_PACKAGE_PREFIX}-cmake"
              "${MINGW_PACKAGE_PREFIX}-make"
              "${MINGW_PACKAGE_PREFIX}-dlfcn"