# Setting the compiler based on the existence of clang bin directory
if test -d "$HOME/.mozbuild/clang/bin"; then
    export CC="$HOME/.mozbuild/clang/bin/clang"
    export CXX="$HOME/.mozbuild/clang/bin/clang++"
else
    export CC=clang
    export CXX=clang++
fi

if test "$SURFER_COMPAT" = "x86_64"; then
    ac_add_options --target=x86_64-pc-linux
    ac_add_options --enable-eme=widevine

    # Enable Profile Guided Optimization
    export MOZ_PGO=1
    ac_add_options MOZ_PGO=1

    # Optimization flags for SURFER_COMPAT
    ac_add_options --enable-optimize="-O3 -march=x86-64"

    export CFLAGS="$CFLAGS -O3 -ffp-contract=fast -march=x86-64"
    export CPPFLAGS="$CPPFLAGS -O3 -ffp-contract=fast -march=x86-64"
    export CXXFLAGS="$CXXFLAGS -O3 -flto=thin -ffp-contract=fast -march=x86-64"
    export LDFLAGS="$LDFLAGS -Wl,-O3 -Wl,-mllvm,-fp-contract=fast -march=x86-64"
    export RUSTFLAGS="$RUSTFLAGS -C target-cpu=x86-64 -C codegen-units=1 -Clink-args=--icf=safe"
elif test "$SURFER_COMPAT" = "aarch64"; then
    ac_add_options --target=aarch64-linux-gnu

    ac_add_options --enable-optimize="-O3"

    export CFLAGS="$CFLAGS -O3"
    export CPPFLAGS="$CPPFLAGS -O3"
    export CXXFLAGS="$CXXFLAGS -O3"
    export LDFLAGS="$LDFLAGS -Wl,-O3"
    export RUSTFLAGS="$RUSTFLAGS -C codegen-units=1 -Clink-args=--icf=safe"
elif test "$ZEN_RELEASE"; then
    ac_add_options --target=x86_64-pc-linux
    ac_add_options --enable-eme=widevine

    # Enable Profile Guided Optimization
    export MOZ_PGO=1
    ac_add_options MOZ_PGO=1

    # Optimization flags for general release
    ac_add_options --enable-wasm-avx
    ac_add_options --enable-optimize="-O3 -march=x86-64-v3 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -maes -mpopcnt -mpclmul"
        
    export CFLAGS="$CFLAGS -O3 -ffp-contract=fast -march=x86-64-v3 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mavx2 -mfma -maes -mpopcnt -mpclmul"
    export CPPFLAGS="$CPPFLAGS -O3 -ffp-contract=fast -march=x86-64-v3 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mavx2 -mfma -maes -mpopcnt -mpclmul"
    export CXXFLAGS="$CXXFLAGS -O3 -flto=thin -ffp-contract=fast -march=x86-64-v3 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mavx2 -mfma -maes -mpopcnt -mpclmul"
    export LDFLAGS="$LDFLAGS -Wl,-O3 -Wl,-mllvm,-fp-contract=fast -march=x86-64-v3"
    export RUSTFLAGS="$RUSTFLAGS -C target-cpu=x86-64-v3 -C target-feature=+sse4.1 -C target-feature=+avx2 -C codegen-units=1 -Clink-args=--icf=safe"
fi

    export VERBOSE=1
    # Uncomment if you want to enable Polly optimizations
    #export POLLY="-mllvm -polly -mllvm -polly-2nd-level-tiling -mllvm -polly-loopfusion-greedy -mllvm -polly-pattern-matching-based-opts -mllvm -polly-position=before-vectorizer -mllvm -polly-vectorizer=stripmine"

# Common options
ac_add_options --enable-alsa
ac_add_options --enable-pulseaudio

if test "$ZEN_RELEASE"; then
    # Disable DMD and ELF hacks, enable linker lld
    ac_add_options --disable-dmd
    ac_add_options --enable-linker=lld
    ac_add_options --disable-elf-hack
    ac_add_options --disable-necko-wifi

    # Stripping options for release builds
    ac_add_options --enable-install-strip
    ac_add_options --enable-strip
    export STRIP_FLAGS="--strip-debug --strip-unneeded"

    # Using sccache if available
    if [ -f /home/runner/.mozbuild/sccache/sccache ]; then
        mk_add_options 'export RUSTC_WRAPPER=/home/runner/.mozbuild/sccache/sccache'
        mk_add_options 'export CCACHE_CPP2=yes'
        ac_add_options --with-ccache=/home/runner/.mozbuild/sccache/sccache
        mk_add_options 'export SCCACHE_GHA_ENABLED=on'
    fi
fi