sst-integration: fix wrong env name

Dockerfile

@@ -8,11 +8,12 @@ ADD . /accel-sim
 ENV CUDA_INSTALL_PATH /usr/local/cuda-11.7
 ENV PTXAS_CUDA_INSTALL_PATH /usr/local/cuda-11.7
 ENV GPUAPPS_ROOT /accel-sim/gpu-app-collection
+ENV LLVM_INSTALL_PATH /accel-sim/llvm-install
+ENV RISCV_TOOLCHAIN_INSTALL_PATH /accel-sim/riscv-gnu-install
 
 # Build LLVM 18.1.8
 # RUN git clone https://github.com/llvm/llvm-project.git \
 # && mkdir llvm-install \
-# && export LLVM_INSTALL_PATH=$(pwd)/llvm-install \
 # && cd llvm-project \
 # && git checkout llvmorg-18.1.8 \
 # && mkdir build && cd build \
@@ -26,10 +27,9 @@ ENV GPUAPPS_ROOT /accel-sim/gpu-app-collection
 RUN apt-get update && apt-get -y install autoconf automake autotools-dev curl python3 python3-pip libmpc-dev libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev libexpat-dev ninja-build git cmake libglib2.0-dev libslirp-dev
 RUN git clone https://github.com/riscv-collab/riscv-gnu-toolchain.git \
 && mkdir riscv-gnu-install \
-&& export RISCV_TOOLCHAIN_INSTALL_PATH=$(pwd)/riscv-gnu-install \
 && cd riscv-gnu-toolchain \
 && git checkout 2024.08.06 \
-&& ./configure --prefix=$RISCV_INSTALL_PATH \
+&& ./configure --prefix=$RISCV_TOOLCHAIN_INSTALL_PATH \
 && make linux -j4 \
 && cd ..