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0006337

CMake

public

2008-02-13 12:25

2008-10-01 17:00

Reporter

Brandon Van Every

Assigned To

Bill Hoffman

Priority

normal

Severity

crash

Reproducibility

always

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0006337: cmake -P crashes on configure_file

Description

It is documented that cmake -P does not have a configuration stage or a cache. However in CMake 2.4.8, if a cmake -P script attempts to execute a configure_file command, the error message says that CMake has not been built correctly. This is worrisome. Run the following script twice with cmake -P to reproduce:

set(input ${CMAKE_SOURCE_DIR}/a.txt)
if(EXISTS ${input})
  set(output ${CMAKE_BINARY_DIR}/b.txt)
  if(EXISTS ${output})
    message("${output} already exists")
  else(EXISTS ${output})
    configure_file(${input} ${output})
  endif(EXISTS ${output})
else(EXISTS ${input})
  file(WRITE ${input} "This is some text")
  message("Created ${input}")
  message("Can't use output of file(WRITE ...) for configure_file")
  message("Re-run script")
endif(EXISTS ${input})

C:\devel\src\cbugs\configure>cmake -P configure_file.cmake
Created C:/devel/src/cbugs/configure/a.txt
Can't use output of file(WRITE ...) for configure_file
Re-run script

C:\devel\src\cbugs\configure>cmake -P configure_file.cmake
CMake Error: Error required internal CMake variable not set, cmake may be not be
built correctly.
Missing variable is:
CMAKE_BACKWARDS_COMPATIBILITY

C:\devel\src\cbugs\configure>

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Notes
(0010482) Alex Neundorf (developer) 2008-02-13 14:08	Can you please check how it behaves with cmake cvs ? Alex

(0010489) Brandon Van Every (reporter) 2008-02-13 17:54	Interesting. Under CMake 2.5-20080213 it dies silently. No messages, either from my message() calls or from error diagnostics. No configure_file output either.

(0010500) Alex Neundorf (developer) 2008-02-14 15:50	Can you get a backtrace ?

Issue History
Date Modified	Username	Field	Change
2008-02-13 12:25	Brandon Van Every	New Issue
2008-02-13 14:08	Alex Neundorf	Note Added: 0010482
2008-02-13 17:54	Brandon Van Every	Note Added: 0010489
2008-02-14 15:50	Alex Neundorf	Note Added: 0010500
2008-02-15 10:28	Bill Hoffman	Status	new => assigned
2008-02-15 10:28	Bill Hoffman	Assigned To	=> Bill Hoffman
2008-10-01 17:00	Bill Hoffman	Status	assigned => closed
2008-10-01 17:00	Bill Hoffman	Resolution	open => fixed