ci: robustly locate FreeMiNT cross compiler

Author: pgousdal

.github/workflows/qualification.yml

@@ -108,11 +108,16 @@ jobs:
           export CROSS_TOOL=m68k-atari-mint
           export PATH="/usr/${CROSS_TOOL}/bin:$PATH"
           SYSROOT_DIR=/tmp/mint-toolchain ./.scripts/install-freemint.sh binutils gcc mintbin
-          toolbin="$(find /tmp/mint-toolchain -type f -name m68k-atari-mint-gcc -printf '%h\n' | head -n1)"
-          test -n "$toolbin"
+          compiler="$(find /tmp/mint-toolchain \( -type f -o -type l \) -name m68k-atari-mint-gcc -print -quit)"
+          if [ -z "$compiler" ]; then
+            echo "ERROR: m68k-atari-mint-gcc not found after toolchain install" >&2
+            find /tmp/mint-toolchain -maxdepth 4 \( -type f -o -type l \) -print | sort | tail -n 300
+            exit 1
+          fi
+          toolbin="$(dirname "$compiler")"
           export PATH="$toolbin:$PATH"
-          echo "MiNT toolchain bin: $toolbin"
-          m68k-atari-mint-gcc --version
+          echo "MiNT toolchain compiler: $compiler"
+          "$compiler" --version
           cd sys
           make 030
           test -s .compile_030/mint030.prg