I'm using CMake 2.4.2 and using the Visual Studio .NET 2003 generator.
When I do
FIND_PROGRAM(MAKEINFO_EXE NAMES makeinfo)
it picks up my MSYS makeinfo, because I have my MSYS tools in my Windows
system path. The exact filename found, as reported by CMakeCache.txt, is
MAKEINFO_EXE:FILEPATH=E:/msys/1.0/bin/makeinfo
Most of the MSYS tools have .exe suffixes and will run under a plain
Windows command prompt. Some, however, do not have .exe suffixes and
are not meant to run outside of MSYS. Such is makeinfo. When I open
makeinfo under a text editor, I see that it is some kind of binary, and
it has a string near the top of it that says, "This program cannot be
run in DOS mode."
EXECUTE_PROCESS proves to be exceptionally clever at getting makeinfo to
run. Too clever. Somehow, it gets it to run, and returns a success
code. Under a VS71 generator, it should be flunking it. Because it
certainly doesn't work in the resultant VS71 .sln file, which presumably
uses a 'DOS' mode to execute custom targets.
My mighty CMakeLists.txt:
FIND_PROGRAM(MAKEINFO_EXE NAMES makeinfo)
IF(MAKEINFO_EXE)
MESSAGE("Testing whether makeinfo returns error codes.")
EXECUTE_PROCESS(COMMAND ${MAKEINFO_EXE} --idiot
RESULT_VARIABLE MAKEINFO_FAILED)
IF(MAKEINFO_FAILED)
MESSAGE("makeinfo returns an error code when given bogus arguments.")
ELSE(MAKEINFO_FAILED)
MESSAGE("makeinfo returns success even with bogus arguments.")
ENDIF(MAKEINFO_FAILED)
MESSAGE("Testing whether makeinfo actually works.")
EXECUTE_PROCESS(COMMAND ${MAKEINFO_EXE} --version
RESULT_VARIABLE MAKEINFO_FAILED)
IF(MAKEINFO_FAILED)
MESSAGE("makeinfo does not work")
ADD_CUSTOM_TARGET(info
COMMAND ${CMAKE_COMMAND} -E echo makeinfo does not work)
ELSE(MAKEINFO_FAILED)
MESSAGE("makeinfo works")
ADD_CUSTOM_TARGET(info
COMMAND ${MAKEINFO_EXE} --version)
ENDIF(MAKEINFO_FAILED)
ELSE(MAKEINFO_EXE)
MESSAGE("makeinfo not available")
ADD_CUSTOM_TARGET(info
COMMAND ${CMAKE_COMMAND} -E echo makeinfo not available)
ENDIF(MAKEINFO_EXE)
My results in CMakeSetup:
Testing whether makeinfo returns error codes.
makeinfo returns an error code when given bogus arguments.
Testing whether makeinfo actually works.
makeinfo works
It fails in VS71 thusly:
------ Build started: Project: info, Configuration: Debug Win32 ------
Performing Post-Build Event...
'E:\msys\1.0\bin\makeinfo' is not recognized as an internal or external
command,
operable program or batch file.
Project : error PRJ0019: A tool returned an error code from "Performing
Post-Build Event..."
Build log was saved at
"file://e:\devel\vs71\info\info.dir\Debug\BuildLog.htm"
info - 1 error(s), 0 warning(s)
Cheers,
Brandon Van Every
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