Try vanilla clang

Author: lrettig

build.sh

@@ -43,9 +43,9 @@ cat > /tmp/riscv32em-athena-zkvm-elf.json << EOF
 EOF
 
 # Set environment variables to override compiler flags
-export CC_riscv32em_athena_zkvm_elf="riscv32-unknown-elf-clang"
-export CXX_riscv32em_athena_zkvm_elf="riscv32-unknown-elf-clang++"
-export AR_riscv32em_athena_zkvm_elf="riscv32-unknown-elf-ar"
+export CC_riscv32em_athena_zkvm_elf="clang"
+export CXX_riscv32em_athena_zkvm_elf="clang++"
+#export AR_riscv32em_athena_zkvm_elf="ar"
 
 # Explicitly set CFLAGS without the problematic flags
 export CFLAGS_riscv32em_athena_zkvm_elf="-ffunction-sections -fdata-sections -fPIC -target riscv32-unknown-elf"

patches/config.toml

@@ -7,10 +7,8 @@ tools = ["cargo", "cargo-clippy", "clippy", "rustfmt"]
 configure-args = []
 
 [target.riscv32em-athena-zkvm-elf]
-cc = "riscv32-unknown-elf-clang"
-cxx = "riscv32-unknown-elf-clang++"
-linker = "riscv32-unknown-elf-gcc"
-ar = "riscv32-unknown-elf-ar"
+cc = "clang"
+cxx = "clang++"
 
 [rust]
 lld = true