diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 5cdba0d5..d9519d9c 100644
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -88,13 +88,12 @@ jobs:
           sudo apt-add-repository -y "deb http://apt.llvm.org/noble/ llvm-toolchain-noble-22 main"
           sudo apt-get update
           sudo apt-get install -y clang-22 lld-22 llvm-22 gcc-14 pkg-config libfreetype6-dev libx11-dev libxext-dev libgl1-mesa-dev libegl1-mesa-dev
+          # crash callstack symbolizer depends on LLVM
           sudo ln -s /usr/bin/llvm-symbolizer-22 /usr/bin/llvm-symbolizer
       - name: run-torture
         shell: bash
         run: |
-          CC="${{ matrix.compiler }}" ./build.sh meta raddbg raddbg_non_graphical radbin radlink torture "${{ matrix.mode }}"
-          cd build
-          ./torture --gen_crash_dump
+          CC="${{ matrix.compiler }}" ./run_tests.sh "${{ matrix.compiler }}" "${{ matrix.mode }}" -- --gen_crash_dump
       - name: upload torture artifacts
         if: failure()
         uses: actions/upload-artifact@v7
diff --git a/build.sh b/build.sh
index 3a34a8bc..e1ef4605 100755
--- a/build.sh
+++ b/build.sh
@@ -18,7 +18,7 @@ git_hash_full=$(git rev-parse HEAD)
 
 # --- Compile/Link Line Definitions -------------------------------------------
 cc_cflags_gcc=""
-cc_cflags_clang=${cc_sanitize}" -fuse-ld=lld -fdiagnostics-absolute-paths -Wno-for-loop-analysis  -Wno-incompatible-pointer-types-discards-qualifiers -Wno-initializer-overrides -Wno-compare-distinct-pointer-types -Wno-single-bit-bitfield-constant-conversion -Wno-deprecated-declarations -Wno-writable-strings -Wno-unknown-warning-option -Wno-deprecated-register -Wno-unused-local-typedef"
+cc_cflags_clang=${cc_sanitize}" -fdiagnostics-absolute-paths -Wno-for-loop-analysis  -Wno-incompatible-pointer-types-discards-qualifiers -Wno-initializer-overrides -Wno-compare-distinct-pointer-types -Wno-single-bit-bitfield-constant-conversion -Wno-deprecated-declarations -Wno-writable-strings -Wno-unknown-warning-option -Wno-deprecated-register -Wno-unused-local-typedef"
 cc_common="-mcx16 -I../src/ -I../local/ -D_GNU_SOURCE -g -DBUILD_GIT_HASH=\"$git_hash\" -DBUILD_GIT_HASH_FULL=\"$git_hash_full\" -Wall -Wno-missing-braces -Wno-unused-function -Wno-unused-variable -Wno-unused-but-set-variable -Wno-unused-value -D_USE_MATH_DEFINES -Dstrdup=_strdup -Dgnu_printf=printf"
 cc_debug="-g -O0 -DBUILD_DEBUG=1 ${cc_common}"
 cc_release="-g -O2 -DBUILD_DEBUG=0 ${cc_common}"
diff --git a/run_tests.sh b/run_tests.sh
old mode 100644
new mode 100755
index a7441389..be90422f
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -3,23 +3,60 @@ set -eu
 cd "$(dirname "$0")"
 
 target_values=(raddbg raddbg_non_graphical radlink radbin torture)
-# TODO: gcc
-cc_values=(clang)
+cc_values=(clang gcc)
 mode_values=(debug release)
+run_torture=1
+torture_args=()
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --)
+      shift
+      torture_args=("$@")
+      break
+      ;;
+    clang|clang-*)
+      cc_values=("$1")
+      shift
+      ;;
+    gcc|gcc-*)
+      cc_values=("$1")
+      shift
+      ;;
+    debug|release)
+      mode_values=("$1")
+      shift
+      ;;
+    no_torture)
+      run_torture=0
+      shift
+      ;;
+    *)
+      echo "usage: $0 [clang|clang-*|gcc|gcc-*] [debug|release] [no_torture] [-- <torture args>]"
+      exit 1
+      ;;
+  esac
+done
 
 for m in "${mode_values[@]}"; do
   for c in "${cc_values[@]}"; do
+    build_cc=clang
+    if [[ "$c" == gcc* ]]; then build_cc=gcc; fi
 
     # nuke artifacts from last run
     rm -rf build/torture_artifacts
+    rm -f build/metagen
+    for t in "${target_values[@]}"; do
+      rm -f "build/$t"
+    done
 
-    ./build.sh meta "$c" "$m" "${target_values[@]}"
+    # build targets
+    CC="$c" ./build.sh meta "$build_cc" "$m" "${target_values[@]}"
 
-    # run torture
-    cd build
-    ./torture "$@"
-    cd ..
+    # run torture from build folder
+    if [[ "$run_torture" == "1" ]]; then
+      (cd build && ./torture "${torture_args[@]}")
+    fi
 
   done
 done
-