| $! make-gcc.com -- VMS build procedure for GNU CC. |
| $! |
| $! Usage: |
| $! $ @make-gcc.com [host-compiler] [component list] |
| $! |
| $! where [host-compiler] is one of "GNUC", "VAXC", "DECC"; |
| $! default when none specified is "GNUC", |
| $! and where [component list] is space separated list beginning |
| $! with "CC1" and optionally followed by "CC1PLUS"; default if |
| $! nothing is specified is "CC1" (the C compiler); choosing |
| $! "CC1PLUS" (the C++ compiler) without also specifying "CC1" |
| $! will not work. (See make-cc1.com for other potential component |
| $! values; but unless you're developing or debugging the compiler |
| $! suite itself, the two above are the only ones of interest.) |
| $! |
| $! For a "stage 2" or subsequent build, always specify GNUC as |
| $! the host compiler. |
| $! |
| $! Note: |
| $! Even though it is possible to build with VAX C or DEC C, |
| $! a prior version of the gcc-vms binary distribution is still |
| $! required to be able to use the newly built GNU CC compiler(s), |
| $! because the gcc source distribution does not supply the driver |
| $! program which the DCL command "GCC" implements or the C header |
| $! files and gcclib support library. |
| $! |
| $ |
| $! |
| $! Change working directory to the location of this procedure. |
| $! |
| $ flnm = f$enviroment("PROCEDURE") !get current procedure name |
| $ set default 'f$parse(flnm,,,"DEVICE")''f$parse(flnm,,,"DIRECTORY")' |
| $ |
| $! |
| $! First, we build the preprocessor. |
| $! |
| $ @make-cccp.com 'p1' 'p2' |
| $! |
| $! To install it, copy the resulting GCC-CPP.EXE to the GNU_CC:[000000] |
| $! directory. |
| $! |
| $ |
| $! |
| $! Now we build the C compiler. To build the C++ compiler too, use |
| $! $ @make-gcc GNUC cc1 cc1plus |
| $! when invoking this command procedure. Note that you should not |
| $! do this for a "stage 1" build. |
| $! |
| $ @make-cc1.com 'p1' 'p2' 'p3' 'p4' 'p5' 'p6' 'p7' 'p8' |
| $! |
| $! To install it (them), copy the resulting GCC-CC1.EXE (and GCC-CC1PLUS.EXE) |
| $! to the GNU_CC:[000000] directory. |
| $! |
| $ |
| $! |
| $! Now we build the `libgcc2' support library. It will need to be merged |
| $! with the existing gcclib.olb library. |
| $! |
| $ @make-l2.com 'p1' 'p2' 'p3' 'p4' 'p5' 'p6' 'p7' 'p8' |
| $! |
| $! To install, save a backup copy of GNU_CC:[000000]GCCLIB.OLB somewhere, |
| $! then update the original using the newly created LIBGCC2.OLB via |
| $! $ library/Obj libgcc2.olb /Extract=*/Output=libgcc2.obj |
| $! $ library/Obj gnu_cc:[000000]gcclib.olb libgcc2.obj /Replace |
| $! |
| $! Depending upon how old your present gcclib library is, you might have |
| $! to delete some modules, such as `eprintf' and `new', to avoid conflicting |
| $! symbols from obsolete routines. After deleting any such modules, just |
| $! repeat the `library/replace' step. |
| $! |
| $ exit |