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Content starts here
DEC C CCAE03062 Compaq C V6.2 for OpenVMS Alpha ECO Summary
TITLE: DEC C CCAE03062 Compaq C V6.2 for OpenVMS Alpha ECO Summary
 
Modification Date:  06-APR-2000
Modification Type:  Updated Kit:  Supersedes CCAE02062

NOTE:  An OpenVMS saveset or PCSI installation file is stored
       on the Internet in a self-expanding compressed file.
 
       For OpenVMS savesets, the name of the compressed saveset
       file will be kit_name.a-dcx_vaxexe for OpenVMS VAX or
       kit_name.a-dcx_axpexe for OpenVMS Alpha. Once the OpenVMS
       saveset is copied to your system, expand the compressed
       saveset by typing RUN kitname.dcx_vaxexe or kitname.dcx_alpexe.
 
       For PCSI files, once the PCSI file is copied to your system,
       rename the PCSI file to kitname.pcsi-dcx_axpexe, then it can
       be expanded by typing RUN kitname.pcsi-dcx_axpexe.  The resultant
       file will be the PCSI installation file which can be used to install
       the ECO.
 
Copyright (c) Compaq Computer Corporation 2000.  All rights reserved.

PRODUCT:    Compaq C for OpenVMS Alpha (formerly DEC C)

OP/SYS:     OpenVMS Alpha

SOURCE:     Compaq Computer Corporation

ECO INFORMATION:
                    
     ECO Kit Name:  CCAE03062
     ECO Kits Superseded by This ECO Kit:  CCAE02062
                                           CCAE01062
     ECO Kit Approximate Size:   39,942 Blocks
     Kit Applies To:  Compaq C V6.2 for OpenVMS Alpha 
                      OpenVMS Alpha V6.2 and higher
     System/Cluster Reboot Necessary:  No
     Installation Rating:  INSTALL_UNKNOWN

     Kit Dependencies:

       The following remedial kit(s) must be installed BEFORE
       installation of this kit:

         None 

       In order to receive all the corrections listed in this kit, 
       the following remedial kits should also be installed:

         None 

ECO KIT SUMMARY:

An ECO kit exists for Compaq C V6.2 (formerly DEC C) for OpenVMS Alpha 
on OpenVMS Alpha V6.2 and higher.  This kit addresses the following 
problems: 

Problems addressed in CCAE03062:

  o  The compiler emits the message bltinimplret by default when 
     certain runtime library functions that do not return an int are 
     called without including the appropriate header.  This message 
     is confusing to many users when it appears in existing well-debugged 
     applications.

     The compiler has been changed so that bltinimplret is no longer 
     emitted by default, but only when enabled explicitly (or as part 
     of the performance or level5 message groups).


Problems addressed in CCAE02062:

  o  The compiler may hang when large programs containing
     misaligned data are compiled with the /DEBUG qualifier and
     optimization is not suppressed.  

  o  The compiler may incorrectly optimize away the "store"
     instruction that performs an assignment to a struct member.
     The only reliable workaround is to compile /NOOPTIMIZE.

  o  This kit includes a fix which was made available in the ECO1 kit for
     a problem with the __CMP_STORE_QUAD built-in function
     with 64-bit parameters.


Problems addressed in CCAE01062:

  o  Using the __CMP_STORE_QUAD built-in function with a 64-bit value 
     as the third parameter of the built-in will cause the compiler 
     to generate code that truncates the third parameter to 32-bits.

     Customers who do not use the __CMP_STORE_QUAD built-in function 
     or who use it with a 32-bit values will not need this kit.


Please see the Release Notes included in this kit for more details.


INSTALLATION NOTES:

The system does not need to be rebooted after this kit is installed.

Please note that this is not a complete kit.  If Compaq C V6.2 for 
OpenVMS Alpha is not already installed on the system, please use 
VMSINSTAL to install CC062 in the usual manner before installing this 
ECO kit.  When installing this kit, please note that the saveset name 
is CCAE03062 rather than the CC062 saveset name which is specified in 
the installation guide:

     $ SET DEF SYS$UPDATE
     $ SET PROCESS /PRIV=ALL
     $! if V6.2 not already installed then
     $!     @VMSINSTAL CC062 disk$:[dir]
     $ @VMSINSTAL CCAE03062 disk$:[dir]

All trademarks are the property of their respective owners.
Files on this server are as follows:
»ccae03062.README
»ccae03062.CHKSUM
»ccae03062.CVRLET_TXT
»ccae03062.a-dcx_axpexe
»ccae03062.CVRLET_TXT
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