Merge pull request #29 from CarlWachter/build_local

Note about LD_LIBRARY_PATH and script for checking requirements

README.md

@@ -9,13 +9,15 @@ The build process works currently only on **x86-based Linux** systems. The follo
 * Netwide Assembler (NASM)
 * GNU Make, GNU Binutils, cmake
 * Tools and libraries to build *linux*, *binutils* and *gcc* (e.g. flex, bison, MPFR library, GMP library, MPC library)
-* texinfo
+* Rust
 
 On Debian-based systems the packets can be installed by executing:
 ```
-  sudo apt-get install cmake nasm texinfo libmpfr-dev libmpc-dev libgmp-dev flex bison
+  sudo apt-get install cmake nasm libmpfr-dev libmpc-dev libgmp-dev flex bison
 ```
 
+Note: If issues arise during the build, try using requirements.sh to check the versions of the necessary packets and the configuration of the LD_LIBRARY_PATH (it should contain the MPFR library, GMP library and MPC library).
+
 ## Building the HermitCore's toolchain
 
 To build the toolchain just call the script as follow:

requirements.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+if echo "$LD_LIBRARY_PATH" | grep -q libgmp && echo "$LD_LIBRARY_PATH" | grep -q libmpc && echo "$LD_LIBRARY_PATH" | grep -q libmpfr; then
+    echo "LD_LIBRARY_PATH contains MPFR library, GMP library and MPC library"
+elif ! echo "$LD_LIBRARY_PATH" | grep -q libgmp; then
+    echo "LD_LIBRARY_PATH missing GMP library"
+elif ! echo "$LD_LIBRARY_PATH" | grep -q libmpc; then
+    echo "LD_LIBRARY_PATH missing MPC library"
+elif ! echo "$LD_LIBRARY_PATH" | grep -q libmpfr; then
+    echo "LD_LIBRARY_PATH missing MPFR library"
+fi
+
+check_version() {
+    package=$1
+    version_command=$2
+
+    echo -n "Checking $package... "
+    if $version_command &> /dev/null; then
+        version=$($version_command | head -n 1)
+        echo "Installed ($version)"
+    else
+        echo "Not installed"
+    fi
+}
+
+# Check versions of packages
+check_version "CMake" "cmake --version"
+check_version "NASM" "nasm -v"
+check_version "Flex" "flex --version"
+check_version "Bison" "bison --version"