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Diffstat (limited to 'readme.vms')
| -rw-r--r-- | readme.vms | 95 |
1 files changed, 87 insertions, 8 deletions
@@ -1,16 +1,13 @@ This is the VMS version of GNU Make, updated by Hartmut Becker -Changes are based on GNU make 3.80. Latest changes are for OpenVMS/I64 -and new VMS CRTLs. +Changes are based on GNU make 3.82. -This version was tested on OpenVMS/I64 V8.2 (field test) with hp C -X7.1-024 OpenVMS/Alpha V7.3-2 with Compaq C V6.5-001 and OpenVMS/VAX 7.1 -with Compaq C V6.2-003 There are still some warning and informational -message issued by the compilers. +This version was built and tested on OpenVMS V7.3 (VAX), V7.3-2 (Alpha) and +V8.3-1H1 (I64). Build instructions Make a 1st version - $ @makefile.com + $ @makefile.com ! ignore any compiler and/or linker warning $ rena make.exe 1st-make.exe Use the 1st version to generate a 2nd version $ mc sys$disk:[]1st-make clean @@ -20,7 +17,89 @@ Verify your 2nd version $ mc sys$disk:[]2nd-make clean $ mc sys$disk:[]2nd-make -Changes: +Changes (3.81.90) + +Michael Gehre (at VISTEC-SEMI dot COM) supplied a fix for a problem with +timestamps of object modules in OLBs. The timestamps were not correctly +adjusted to GMT based time, if the local VMS time was using a daylight saving +algorithm and if daylight saving was switched off. + +John Eisenbraun (at HP dot COM) supplied fixes and and an enhancement to append +output redirection in action lines. + +Rework of ctrl+c and ctrl+y handling. + +Fix a problem with cached strings, which showed on case-insensitive file +systems. + +Build fixes for const-ified code in VMS specific sources. + +Build notes: +- Try to avoid HP C V7.2-001, which has an incompatible change +how __STDC__ is defined. This results at least in compile time warnings. + +- On V8.3-1H1, if you press Ctrl+C you may see a traceback, starting with +%SYSTEM-F-CONTROLC, operation completed under CTRL/C +%TRACE-F-TRACEBACK, symbolic stack dump follows +image module routine line rel PC abs PC + +DECC$SHR C$SIGNAL gsignal 27991 0000000000001180 +FFFFFFFF84AB2DA0 +DECC$SHR C$SIGNAL raise 28048 0000000000001280 +FFFFFFFF84AB2EA0 +DECC$SHR C$SIGPENDING decc$$deliver_signals + 12475 0000000000000890 +FFFFFFFF84C13690 +... +This looks like an incompatibility to the Alpha and VAX behavior, so it looks +like a problem in I64 VMS version(s). + +- There is no clean build on VAX. In the environment I tested, I had to use GNU +make's alloca which produced a couple of compile time warnings. It seems too +much effort to work on a clean build on VAX. + +A note on appending the redirected output. With this change, a simple mechanism +is implemented to make ">>" work in action lines. In VMS there is no simple +feature like ">>" to have DCL command or program output redirected and appended +to a file. GNU make for VMS already implements the redirection of output. If +such a redirection is detected, an ">" on the action line, GNU make creates a +DCL command procedure to execute the action and to redirect its output. Based +on that, now ">>" is also recognized and a similar but different command +procedure is created to implement the append. The main idea here is to create a +temporary file which collects the output and which is appended to the wanted +output file. Then the temporary file is deleted. This is all done in the +command procedure to keep changes in make small and simple. This obviously has +some limitations but it seems good enough compared with the current ">" +implementation. (And in my opinion, redirection is not really what GNU make has +to do.) With this approach, it may happen that the temporary file is not yet +appended and is left in SYS$SCRATCH. The temporary file names look like +"CMDxxxxx.". Any time the created command procedure can not complete, this +happens. Pressing Ctrl+Y to abort make is one case. In case of Ctrl+Y the +associated command procedure is left in SYS$SCRATCH as well. Its name is +CMDxxxxx.COM. + +Change in the Ctrl+Y handling + +Ctrl+Y was: The CtrlY handler called $forcex for the current child. + +Ctrl+Y changed: The CtrlY handler uses $delprc to delete all children. This way +also actions with DCL commands will be stopped. As before Ctrl+Y then sends +SIGQUIT to itself, which is handled in common code. + +Change in deleteing temporary command files + +Temporary command files were deleted in the main line, after returning from the +vms child termination handler. If Ctrl+C was pressed, the handler is called but +did not return to main line. + +Now, temporary command files are deleted in the vms child termination +handler. That deletes the them even if a Ctrl+C was pressed. + +The behavior of pressing Ctrl+C is not changed. It still has only an effect, +after the current action is terminated. If that doesn't happen or takes too +long, Ctrl+Y should be used instead. + +Changes (3.80) . In default.c define variable ARCH as IA64 for VMS on Itanium systems. |