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Annotation of gcc/g++, revision 1.1.1.5

1.1       root        1: #!/bin/sh
                      2: # Compile programs, treating .c files as C++.
1.1.1.2   root        3: : || exec /bin/sh -f $0 $argv:q
1.1       root        4: 
1.1.1.4   root        5: # The compiler name might be different when doing cross-compilation
                      6: # (this should be configured)
                      7: gcc_name=gcc
                      8: speclang=-xnone
                      9: 
                     10: # replace the command name by the name of the new command
                     11: progname=`basename $0`
                     12: case "$0" in
                     13:   */*)
                     14:     gcc=`echo $0 | sed -e "s;/[^/]*$;;"`/$gcc_name
                     15:     ;;
                     16:   *)
                     17:     gcc=$gcc_name
                     18:     ;;
                     19: esac
                     20: 
                     21: # $first is yes for first arg, no afterwards.
                     22: first=yes
                     23: # If next arg is the argument of an option, $quote is non-empty.
                     24: # More precisely, it is the option that wants an argument.
                     25: quote=
                     26: # $library is made empty to disable use of libg++.
1.1       root       27: library=-lg++
1.1.1.4   root       28: numargs=$#
1.1       root       29: 
1.1.1.4   root       30: # ash requires the newline before `do'.
                     31: for arg
1.1       root       32: do
1.1.1.4   root       33:   if [ $first = yes ]
                     34:   then
                     35:     # Need some 1st arg to `set' which does not begin with `-'.
                     36:     # We get rid of it after the loop ends.
                     37:     set gcc
                     38:     first=no
                     39:   fi
                     40:   # If you have to ask what this does, you should not edit this file. :-)
                     41:   # The ``S'' at the start is so that echo -nostdinc does not eat the
                     42:   # -nostdinc.
                     43:   arg=`echo "S$arg" | sed "s/^S//; s/'/'\\\\\\\\''/g"`
                     44:   if [ x$quote != x ]
1.1       root       45:   then
1.1.1.4   root       46:     quote=
1.1       root       47:   else
1.1.1.4   root       48:     quote=
1.1       root       49:     case $arg in
                     50:       -nostdlib)
                     51:        # Inhibit linking with -lg++.
                     52:        library=
                     53:        ;;
1.1.1.5 ! root       54:       -lm | -lmath)
        !            55:        # Because libg++ uses things from the math library, make sure it
        !            56:        # always comes before the math library.  We recognize both -lm
        !            57:        # and -lmath, since on some systems (e.g. m88k SVR3), it
        !            58:        # doesn't call it libm.a for some reason.
1.1.1.4   root       59:        set "$@" $library
                     60:        library=""
                     61:        ;;
1.1       root       62:       -[bBVDUoeTuIYmLiA] | -Tdata)
                     63:        # these switches take following word as argument,
                     64:        # so don't treat it as a file name.
1.1.1.4   root       65:        quote=$arg
1.1       root       66:        ;;
1.1.1.3   root       67:       -[cSEM] | -MM)
1.1       root       68:        # Don't specify libraries if we won't link,
                     69:        # since that would cause a warning.
                     70:        library=
                     71:        ;;
                     72:       -x*)
1.1.1.4   root       73:        speclang=$arg
                     74:        ;;
                     75:       -v)
                     76:        # catch `g++ -v'
                     77:        if [ $numargs = 1 ] ; then library="" ; fi
1.1       root       78:        ;;
                     79:       -*)
                     80:        # Pass other options through; they don't need -x and aren't inputs.
                     81:        ;;
                     82:       *)
                     83:        # If file ends in .c or .i, put options around it.
                     84:        # But not if a specified -x option is currently active.
1.1.1.4   root       85:        case "$speclang $arg" in -xnone\ *.[ci])
                     86:          set "$@" -xc++ "'$arg'" -xnone
                     87:          continue
                     88:        esac
1.1       root       89:        ;;
                     90:     esac
                     91:   fi
1.1.1.4   root       92:   set "$@" "'$arg'"
1.1       root       93: done
                     94: 
1.1.1.4   root       95: # Get rid of that initial 1st arg
                     96: if [ $first = no ]; then
                     97:   shift
                     98: else
                     99:   echo "$0: No input files specified."
1.1       root      100:   exit 1
                    101: fi
                    102: 
1.1.1.4   root      103: if [ x$quote != x ]
1.1       root      104: then
1.1.1.4   root      105:   echo "$0: argument to \`$quote' missing"
                    106:   exit 1
1.1       root      107: fi
1.1.1.4   root      108: 
                    109: eval $gcc "$@" $library

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