| This is the VMS port of GNU Make done by Hartmut.Becker@compaq.com. |
| |
| It is based on the specific version 3.77k and on 3.78.1. 3.77k was done |
| by Klaus Kämpf <kkaempf@rmi.de>, the code was based on the VMS port of |
| GNU Make 3.60 by Mike Moretti. |
| |
| It was ported on OpenVMS/Alpha V7.1, DECC V5.7-006. It was re-build and |
| tested on OpenVMS/Alpha V7.2, OpenVMS/VAX 7.1 and 5.5-2. Different |
| versions of DECC were used. VAXC was tried: it fails; but it doesn't |
| seem worth to get it working. There are still some PTRMISMATCH warnings |
| during the compile. Although perl is working on VMS the test scripts |
| don't work. The function $shell is still missing. |
| |
| There is a known bug in some of the VMS CRTLs. It is in the shipped |
| versions of VMS V7.2 and V7.2-1 and in the currently (October 1999) |
| available ECOs for VMS V7.1 and newer versions. It is fixed in versions |
| shipped with newer VMS versions and all ECO kits after October 1999. It |
| only shows up during the daylight saving time period (DST): stat() |
| returns a modification time 1 hour ahead. This results in GNU make |
| warning messages. For a just created source you will see: |
| |
| $ gmake x.exe |
| gmake.exe;1: *** Warning: File `x.c' has modification time in the future (940582863 > 940579269) |
| cc /obj=x.obj x.c |
| link x.obj /exe=x.exe |
| gmake.exe;1: *** Warning: Clock skew detected. Your build may be incomplete. |
| |
| |
| New in 3.78.1: |
| |
| Fix a problem with automatically remaking makefiles. GNU make uses an |
| execve to restart itself after a successful remake of the makefile. On |
| UNIX systems execve replaces the running program with a new one and |
| resets all signal handling to the default. On VMS execve creates a child |
| process, signal and exit handlers of the parent are still active, and, |
| unfortunately, corrupt the exit code from the child. Fix in job.c: |
| ignore SIGCHLD. |
| |
| Added some switches to reflect latest features of DECC. Modifications in |
| makefile.vms. |
| |
| Set some definitions to reflect latest features of DECC. Modifications in |
| config.h-vms (which is copied to config.h). |
| |
| Added extern strcmpi declaration to avoid 'implicitly declared' messages. |
| Modification in make.h. |
| |
| Default rule for C++, conditionals for gcc (GCC_IS_NATIVE) or DEC/Digital/ |
| Compaq c/c++ compilers. Modifications in default.c. |
| |
| Usage of opendir() and friends, suppress file version. Modifications in dir.c. |
| |
| Added VMS specific code to handle ctrl+c and ctrl+y to abort make. |
| Modifications in job.c. |
| |
| Added support to have case sensitive targets and dependencies but to |
| still use case blind file names. This is especially useful for Java |
| makefiles on VMS: |
| |
| .SUFFIXES : |
| .SUFFIXES : .class .java |
| .java.class : |
| javac "$< |
| HelloWorld.class : HelloWorld.java |
| |
| A new macro WANT_CASE_SENSITIVE_TARGETS in config.h-vms was introduced. |
| It needs to be enabled to get this feature; default is disabled. The |
| macro HAVE_CASE_INSENSITIVE_FS must not be touched: it is still enabled. |
| Modifications in file.c and config.h-vms. |
| |
| Bootstrap make to start building make is still makefile.com, but make |
| needs to be re-made with a make to make a correct version: ignore all |
| possible warnings, delete all objects, rename make.exe to a different |
| name and run it. |
| |
| Made some minor modifications to the bootstrap build makefile.com. |
| |
| This is the VMS port of GNU Make. |
| |
| It is based on the VMS port of GNU Make 3.60 by Mike Moretti. |
| |
| This port was done by Klaus Kämpf <kkaempf@rmi.de> |
| |
| There is first-level support available from proGIS Software, Germany. |
| Visit their web-site at http://www.progis.de to get information |
| about other vms software and forthcoming updates to gnu make. |
| |
| New for 3.77: |
| |
| /bin/sh style I/O redirection is supported. You can now write lines like |
| mcr sys$disk:[]program.exe < input.txt > output.txt &> error.txt |
| |
| Makefile variables are looked up in the current environment. You can set |
| symbols or logicals in DCL and evaluate them in the Makefile via |
| $(<name-of-symbol-or-logical>). Variables defined in the Makefile |
| override VMS symbols/logicals ! |
| |
| Functions for file names are working now. See the GNU Make manual for |
| $(dir ...) and $(wildcard ...). Unix-style and VMS-style names are |
| supported as arguments. |
| |
| The default rules are set up for GNU C. Building an executable from a |
| single source file is as easy as 'make file.exe'. |
| |
| The variable $(ARCH) is predefined as ALPHA or VAX resp. Makefiles for |
| different VMS systems can now be written by checking $(ARCH) as in |
| ifeq ($(ARCH),ALPHA) |
| $(ECHO) "On the Alpha" |
| else |
| $(ECHO) "On the VAX" |
| endif |
| |
| Command lines of excessive length are correctly broken and written to a |
| batch file in sys$scratch for later execution. There's no limit to the |
| lengths of commands (and no need for .opt files :-) any more. |
| |
| Empty commands are handled correctly and don't end in a new DCL process. |
| |
| |
| New for 3.76: |
| |
| John W. Eaton has updated the VMS port to support libraries and VPATH. |
| |
| |
| To build Make, simply type @makefile. This should compile all the |
| necessary files and link Make. There is also a file called |
| makefile.vms. If you already have GNU Make built you can just use |
| Make with this makefile to rebuild. |
| |
| Here are some notes about GNU Make for VMS: |
| |
| The cd command is supported if it's called as $(CD). This invokes |
| the 'builtin_cd' command which changes the directory. |
| Calling 'set def' doesn't do the trick, since a sub-shell is |
| spawned for this command, the directory is changed *in this sub-shell* |
| and the sub-shell ends. |
| |
| Libraries are not supported. They were in GNU Make 3.60 but somehow I |
| didn't care porting the code. If there is enough interest, I'll do it at |
| some later time. |
| |
| The variable $^ separates files with commas instead of spaces (It's the |
| natural thing to do for VMS). |
| |
| See defaults.c for VMS default suffixes and my definitions for default |
| rules and variables. |
| |
| The shell function is not implemented yet. |
| |
| Load average routines haven't been implemented for VMS yet. |
| |
| The default include directory for including other makefiles is |
| SYS$SYSROOT:[SYSLIB] (I don't remember why I didn't just use |
| SYS$LIBRARY: instead; maybe it wouldn't work that way). |
| |
| The default makefiles make looks for are: makefile.vms, gnumakefile, |
| makefile., and gnumakefile. . |
| |
| The stat() function and handling of time stamps in VMS is broken, so I |
| replaced it with a hack in vmsfunctions.c. I will provide a full rewrite |
| somewhere in the future. Be warned, the time resolution inside make is |
| less than what vms provides. This might be a problem on the faster Alphas. |
| |
| You can use a : in a filename only if you preceed it with a backslash ('\'). |
| E.g.- hobbes\:[bogas.files] |
| |
| Make ignores success, informational, or warning errors (-S-, -I-, or |
| -W-). But it will stop on -E- and -F- errors. (unless you do something |
| to override this in your makefile, or whatever). |
| |
| Remote stuff isn't implemented yet. |
| |
| Multiple line DCL commands, such as "if" statements, must be put inside |
| command files. You can run a command file by using \@. |
| |
| |
| VMS changes made for 3.74.3 |
| |
| Lots of default settings are adapted for VMS. See default.c. |
| |
| Long command lines are now converted to command files. |
| |
| Comma (',') as a separator is now allowed. See makefile.vms for an example. |