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0000806

CMake

public

2004-04-28 18:01

2004-04-29 10:27

Reporter

Gordon Schumacher

Assigned To

System Admin

Priority

normal

Severity

major

Reproducibility

always

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0000806: Changing CMAKE_GENERATOR by -Cfile crashes cmake

Description

I have only the following files in a directory (i.e., otherwise a clean tree):

--- test.cmake ---
IF(TARGET MATCHES dos32)
SET(CMAKE_GENERATOR CACHE INTERNAL "Unix Makefiles" FORCE)
ENDIF(TARGET MATCHES dos32)
--- test.cmake ---

--- CMakeLists.txt ---
CMAKE_MINIMUM_REQUIRED(VERSION 1.8)
--- CMakeLists.txt ---

If I issue the following command:
D:\Progra~1\cmake-devel\bin\cmake -DTARGET:STRING=dos32 -Ctest.cmake

This appears to be because genName, as set from the call to m_CacheManager->GetCacheValue on line 1011 of cmake.cxx, is an empty-string - which means that the call to CreateGlobalGenerator will fail, leaving m_GlobalGenerator NULL.

I am not at all sure why CMAKE_GENERATOR is being set to empty-string, though this appears to be true any time I set CMAKE_GENERATOR, under any conditions, on any version of cmake.

I have pulled the CVS nightly stamp as of two hours ago.

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Notes
(0000999) Bill Hoffman (manager) 2004-04-29 10:27	I have fixed the crash, but the problem actually was in you test.cmake file and a mis-use of the SET command. You actually set the generator to the empty string. The correct syntax is this: SET(CMAKE_GENERATOR "Unix Makefiles" CACHE INTERNAL "" FORCE ) If you make that change, it should work even without the crash fix.

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