manually fix some shellcheck warnings

scripts/cargo.sh

@@ -10,7 +10,7 @@ cmd=$1
 shift || true
 
 if [[ "$cmd" = "jit" ]]; then
-cargo "+${TOOLCHAIN}" rustc $@ -- --jit
+cargo "+${TOOLCHAIN}" rustc "$@" -- --jit
 else
-cargo "+${TOOLCHAIN}" "$cmd" $@
+cargo "+${TOOLCHAIN}" "$cmd" "$@"
 fi

scripts/config.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 set -e
 
 unamestr=$(uname)
@@ -39,7 +41,7 @@ echo
 export RUSTC_WRAPPER=
 fi
 
-dir=$(cd $(dirname "$BASH_SOURCE"); pwd)
+dir=$(cd "$(dirname "${BASH_SOURCE[0]}")"; pwd)
 
 export RUSTC=$dir"/cg_clif"
 export RUSTFLAGS=$linker
@@ -51,7 +53,8 @@ if [[ $(uname) == 'Darwin' ]]; then
    export RUSTFLAGS="$RUSTFLAGS -Clink-arg=-undefined -Clink-arg=dynamic_lookup"
 fi
 
-export LD_LIBRARY_PATH="$dir:$(rustc --print sysroot)/lib:$dir/target/out:$dir/sysroot/lib/rustlib/$TARGET_TRIPLE/lib"
+LD_LIBRARY_PATH="$dir:$(rustc --print sysroot)/lib:$dir/target/out:$dir/sysroot/lib/rustlib/$TARGET_TRIPLE/lib"
+export LD_LIBRARY_PATH
 export DYLD_LIBRARY_PATH=$LD_LIBRARY_PATH
 
 export CG_CLIF_DISPLAY_CG_TIME=1

scripts/tests.sh

@@ -4,7 +4,7 @@ set -e
 
 source build/config.sh
 export CG_CLIF_INCR_CACHE_DISABLED=1
-MY_RUSTC=$RUSTC" "$RUSTFLAGS" -L crate=target/out --out-dir target/out -Cdebuginfo=2"
+MY_RUSTC="$RUSTC $RUSTFLAGS -L crate=target/out --out-dir target/out -Cdebuginfo=2"
 
 function no_sysroot_tests() {
     echo "[BUILD] mini_core"

test.sh

@@ -3,13 +3,13 @@ set -e
 
 export RUSTFLAGS="-Zrun_dsymutil=no"
 
-./build.sh --without-sysroot $@
+./build.sh --without-sysroot "$@"
 
 rm -r target/out || true
 
 scripts/tests.sh no_sysroot
 
-./build.sh $@
+./build.sh "$@"
 
 scripts/tests.sh base_sysroot
 scripts/tests.sh extended_sysroot