blob: bb5bdb0996ef57eba71cc9088bba6308347dd022 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmCMakeMinimumRequired.h"
#include "cmVersion.h"
// cmCMakeMinimumRequired
bool cmCMakeMinimumRequired
::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
{
// Process arguments.
std::string version_string;
bool doing_version = false;
for(unsigned int i=0; i < args.size(); ++i)
{
if(args[i] == "VERSION")
{
doing_version = true;
}
else if(args[i] == "FATAL_ERROR")
{
if(doing_version)
{
this->SetError("called with no value for VERSION.");
return false;
}
doing_version = false;
}
else if(doing_version)
{
doing_version = false;
version_string = args[i];
}
else
{
cmOStringStream e;
e << "called with unknown argument \"" << args[i].c_str() << "\".";
this->SetError(e.str().c_str());
return false;
}
}
if(doing_version)
{
this->SetError("called with no value for VERSION.");
return false;
}
// Make sure there was a version to check.
if(version_string.empty())
{
return true;
}
// Save the required version string.
this->Makefile->AddDefinition("CMAKE_MINIMUM_REQUIRED_VERSION",
version_string.c_str());
// Get the current version number.
int current_major = cmVersion::GetMajorVersion();
int current_minor = cmVersion::GetMinorVersion();
int current_patch = cmVersion::GetPatchVersion();
// Parse the required version number. If no patch-level is given
// use zero.
int required_major = 0;
int required_minor = 0;
int required_patch = 0;
if(sscanf(version_string.c_str(), "%d.%d.%d",
&required_major, &required_minor, &required_patch) < 2)
{
cmOStringStream e;
e << "could not parse VERSION \"" << version_string.c_str() << "\".";
this->SetError(e.str().c_str());
return false;
}
// Compare the version numbers.
if(current_major < required_major ||
current_major == required_major &&
current_minor < required_minor ||
current_major == required_major &&
current_minor == required_minor &&
current_patch < required_patch)
{
// The current version is too low.
cmOStringStream e;
e << "This project requires version " << version_string.c_str()
<< " of CMake. "
<< "You are running version "
<< current_major << "." << current_minor << "." << current_patch
<< ".\n";
cmSystemTools::Error(e.str().c_str());
cmSystemTools::SetFatalErrorOccured();
}
if (required_major < 2 || required_major == 2 && required_minor < 4)
{
this->Makefile->SetPolicyVersion("2.4");
}
else
{
this->Makefile->SetPolicyVersion(version_string.c_str());
}
return true;
}
|
