Use the clang RemoveCStrCalls tool to automatically migrate the
code. This was only run on linux, so does not have any positive or
negative effect on other platforms.
Commit "KWSys: Fix SystemTools environment memory handling" (2012-04-26)
added a _WIN32 case inside !KWSYS_CXX_HAS_ENVIRON_IN_STDLIB_H to dllimport
the "environ" global. Howver, KWSYS_CXX_HAS_ENVIRON_IN_STDLIB_H is true
on every Windows toolchain we support so the case is never reached.
Furthermore, even if it were reached the use of dllimport is incorrect
because the toolchain might not be compiling with a dynamic runtime
library. Remove the unused incorrect line and supporting conditionals.
The SystemTools::PutEnv function tries to provide the "putenv" API
without leaking memory. However, the kwsysDeletingCharVector singleton
frees memory that may still be referenced by the environment table,
having been placed there by putenv. If any static destruction or
processing by an external tool happens after the singleton is destroyed
and accesses the environment it will read invalid memory.
Replace use of putenv with setenv/unsetenv when available. The latter
manage internal copies of the values passed instead of referencing the
original memory. When setenv/unsetenv are not available use putenv with
a singleton that removes its values from the environment before freeing
their memory. This requires an "unputenv" implementation. On at least
some platforms it must be written in terms of "putenv" because other
APIs are not available and direct modification of the "environ" global
is not safe (e.g. on Windows there is interaction with "wenviron").
Fortunately either putenv("A=") or putenv("A") will remove "A" from the
environment on these platforms. On other platforms fall back to direct
manipulation of "environ".
Also add UnPutEnv to the API and add a test for the behavior of both.
Fix a crash which occurs when SystemTools::GetPath attempts to process
an empty environment variable.
Author: Vladimir Panteleev <vladimir@thecybershadow.net>
CommandLineArguments.cxx:
remark #181: argument is incompatible with corresponding format
string conversion
SystemInformation.cxx:
remark #193: zero used for undefined preprocessing identifier "_WIN32"
warning #177: variable "Regebx" was declared but never referenced
SystemTools.cxx(375):
remark #444: destructor for base class "std::vector<char*>" is not virtual
class kwsysDeletingCharVector : private kwsys_stl::vector<char*>
Author: Hans Johnson <hans-johnson@uiowa.edu>
Change-Id: Ibc899c3ba14990158ef7bbabace4b435b22495c3
In SystemTools::ClassInitialize, remove call to AddTranslationPath
that was originally put in place to "work around an SGI problem."
This code precluded using CMake effectively in valid directories
under "/tmp_mnt/"
We already use GetSystemTimeAsFileTime() and gettimeofday()
unconditionally on supported Windows and non-Windows platforms,
respectively. Remove outdated portability complexity.
CMake fails to find any registry paths on Windows 2000: according to regmon
it fails with an access denied error. I double checked all the access rights
and they are fine. After checking the access modes on MSDN I found that it
says KEY_WOW64_32KEY / KEY_WOW64_64KEY are not supported on Windows 2000.
CMake does not check if the current system supports Wow64 before applying
these flags.
This commit adds a check for IsWow64Process in kernel32.dll before adding
these flags.
Author: Axel Gembe <ago@bastart.eu.org>
Signed-off-by: Axel Gembe <ago@bastart.eu.org>
Pass the lpClass argument of RegCreateKeyEx as a real char[] instead of
a string literal. At least one platform declares the argument as char*
instead of "const char*".
This method replaces '//' with '/' to make the paths look nicer.
Originally it correctly skipped a leading '//' in a UNC path as the
comment says. However, commit "Removed extra variable initializations"
(2005-04-15) accidentally removed the "pos=1" initializer. It was then
incorrectly restored by commit "Added missing variable initialization"
(2005-04-15) as just "pos=0". Restore the proper initializer.
The test for this added by commit "better coverage" (2006-07-31)
included incorrect output for a sample UNC-like path. Fix it.
Commit "merge in changes for beos support" (2006-12-04) added a realpath
call for every directory parsed out of a PATH-style environment
variable. No reason was given in the commit message or comments.
The call incorrectly resolves symlinks in referenced paths. Remove it.
If BeOS support really needs it then it can be restored for that
platform with a full explanation.
The CopyFileIfDifferent, CopyFileAlways, CopyAFile and CopyADirectory
methods should always copy permissions. The special cases in which a
caller would pass copyPermissions=false should be handled at the call
site. The parameter needlessly complicates the interface and semantics
of these methods.
Brad King
Stephen Kelly
David Cole