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Diffstat (limited to 'readme.vms')
| -rw-r--r-- | readme.vms | 51 |
1 files changed, 51 insertions, 0 deletions
@@ -1,3 +1,54 @@ +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. + +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. + +Build instructions +Make a 1st version + $ @makefile.com + $ rena make.exe 1st-make.exe +Use the 1st version to generate a 2nd version + $ mc sys$disk:[]1st-make clean + $ mc sys$disk:[]1st-make +Verify your 2nd version + $ rena make.exe 2nd-make.exe + $ mc sys$disk:[]2nd-make clean + $ mc sys$disk:[]2nd-make + +Changes: + +. In default.c define variable ARCH as IA64 for VMS on Itanium systems. + +. In makefile.vms avoid name collision for glob and globfree. + +In newer version of the VMS CRTL there are glob and globfree implemented. +Compiling and linking may result in + + %ILINK-W-MULDEFLNKG, symbol DECC$GLOBFREE has subsequent linkage definition + in module DECC$SHR file SYS$COMMON:[SYSLIB]DECC$SHR.EXE;1 + %ILINK-W-MULDEF, symbol DECC$GLOBFREE multiply defined + in module DECC$SHR file SYS$COMMON:[SYSLIB]DECC$SHR.EXE;1 + +linker messages (and similar for DECC$GLOB). The messages just say, that +globfree is a known CRTL whose name was mapped by the compiler to +DECC$GLOBFREE. This is done in glob.c as well, so this name is defined +twice. One possible solution is to use the VMS versions of glob and +globfree. However, then the build environment needs to figure out if +there is a new CRTL supporting these or not. This adds complexity. Even +more, these functions return VMS file specifications, which is not +expected by the other make sources. There is a switch at run time (a VMS +logical DECC$GLOB_UNIX_STYLE), which can be set to get Unix style +names. This may conflict with other software. The recommended solution +for this is to set this switch just prior to calling main: in an +initialization routine. This adds more complexity and more VMS specific +code. It is easier to tell the compiler NOT to map the routine names +with a simple change in makefile.vms. + 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 |