early-access version 2853

externals/vcpkg/scripts/buildsystems/make_wrapper/cl_cpp_wrapper

@@ -0,0 +1,104 @@
+#!/usr/bin/bash
+# cl_cpp_wrapper
+# Wrapper around MS's cl.exe to make it act more like Unix cpp
+
+PATH="$PATH:/usr/bin"
+
+case $MACHTYPE in
+    *-msys)
+        slash="-"
+        ;;
+    *)
+        slash="/"
+        ;;
+esac
+
+# prog specifies the program that should be run cl.exe
+prog=cl.exe
+debug=
+cppopt=("${slash}nologo")
+cppopt+=("${slash}E")
+verbose=
+shared_index=-1
+
+processargs()
+{
+### Run through every option and convert it to the proper MS one
+while test $# -gt 0; do
+    case "$1" in
+    -D*) optarg= ;;
+    -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+    *) optarg= ;;
+    esac
+    gotparam=1
+    case "$1" in
+    --help)
+        usage
+        exit 0
+        ;;
+    --verbose)
+        verbose=1
+        ;;
+    -*)
+        # Remaining '-' options are passed to the compiler
+        if test x$optarg != x ; then
+            cppopt+=("${slash}${1:1}=$optarg")
+        else
+            cppopt+=("${slash}${1:1}")
+        fi
+        ;;
+
+    /*)
+        # All '/' options are assumed to be for cpp and are passed through
+        cppopt+=("${slash}${1:1}")
+        ;;
+
+    *)
+        file=$1
+        #cppopt+=("$1")
+        ;;
+    esac
+    shift
+done
+}
+
+# Whitespace in paths is dealt with by setting IFS and using bash arrays
+
+# processargs $CPP_FLAGS
+IFS=""
+processargs $@
+
+if test x$V = x1 ; then
+    verbose=1
+fi
+
+if test -n "$verbose" ; then
+  echo -n "$prog"
+  for opt in "${cppopt[@]}" ; do
+    echo -n " \"$opt\""
+  done
+  echo ""
+fi
+
+[ $# -ge 1 -a -f "$1" ] && input="$file" || input="-"
+
+input_file="${file:-/proc/self/fd/0}"
+if [ "$input_file" == "/proc/self/fd/0" ]; then
+    #echo "STDIN"
+    # CL does not support reading from STDIN so it is wrapped here. 
+    tmpout=cpp_wrapper_$RANDOM.h
+    /usr/bin/cp $input_file $tmpout
+    # from https://stackoverflow.com/questions/36313562/how-to-redirect-stdin-to-file-in-bash
+    #exec 3> cppstdtmp.h
+    #while IFS= read -r line; do
+    #  printf '%s' "$line"
+    #done
+    #exec 3<&-
+    #echo "$(</dev/stdin)" > cppstdtmp.h
+    exec $prog ${cppopt[@]} $tmpout
+    rm -f $tmpout
+else
+    #echo "FILE"
+    exec $prog ${cppopt[@]} $input_file
+fi
+