webkit在win32下的编译规则（三）
首先来看WTF这个project，这个project的Pre-build event如下：
1: REM Do not edit from the Visual Studio IDE! Customize via a $(ProjectName)PreBuild.cmd file.
2: if not exist "$(ProjectDir)$(ProjectName)PreBuild.cmd" exit /b
3:
4: set CONFIGURATIONBUILDDIR=$(ConfigurationBuildDir)
5: set CONFIGURATIONNAME=$(ConfigurationName)
6: set INPUTDIR=$(InputDir)
7: set INPUTFILENAME=$(InputFileName)
8: set INPUTPATH=$(InputPath)
9: set INTDIR=$(IntDir)
10: set LIBRARYCONFIGSUFFIX=$(LibraryConfigSuffix)
11: set OUTDIR=$(OutDir)
12: set PLATFORMNAME=$(PlatformName)
13: set PROJECTDIR=$(ProjectDir)
14: set PROJECTFILENAME=$(ProjectFileName)
15: set PROJECTNAME=$(ProjectName)
16: set PROJECTPATH=$(ProjectPath)
17: set SOLUTIONDIR=$(SolutionDir)
18: set SOLUTIONFILENAME=$(SolutionFileName)
19: set SOLUTIONNAME=$(SolutionName)
20: set SOLUTIONPATH=$(SolutionPath)
21: set TARGETDIR=$(TargetDir)
22: set TARGETEXT=$(TargetExt)
23: set TARGETFILENAME=$(TargetFileName)
24: set TARGETPATH=$(TargetPath)
25: set WEBKITCONFIGSUFFIX=$(WebKitConfigSuffix)
26: set WEBKITDLLCONFIGSUFFIX=$(WebKitDLLConfigSuffix)
27:
28: REM If any of the above variables didnt exist previously and
29: REM were set to an empty string, set will set the errorlevel to 1,
30: REM which will cause the project-specific script to think the build
31: REM has failed. This cmd /c call will clear the errorlevel.
32: cmd /c
33:
34: "$(ProjectDir)$(ProjectName)PreBuild.cmd"
这些脚本首先利用vs自带的一些内置变量来设置环境变量，然后调用"$(ProjectDir)$(ProjectName)PreBuild.cmd"这个脚本，展开后的路径是D: oolscygwinhomexufanWebKitSourceJavaScriptCoreJavaScriptCore.vcprojJavaScriptCoreJavaScriptCorePreBuild.cmd。从上面的28-31行可以看出，cmd /c的主要作用是为了清除errorlevel。JavaScriptCorePreBuild.cmd这个脚本的内容如下：
1: %SystemDrive%cygwininwhich.exe bash
2: if errorlevel 1 set PATH=%SystemDrive%cygwinin;%PATH%
3: cmd /c
4: if exist "%CONFIGURATIONBUILDDIR%uildfailed" grep XX%PROJECTNAME%XX "%CONFIGURATIONBUILDDIR%uildfailed"
5: if errorlevel 1 exit 1
6: echo XX%PROJECTNAME%XX > "%CONFIGURATIONBUILDDIR%uildfailed"
7:
8: bash "%WEBKITLIBRARIESDIR% oolsscriptsauto-version.sh" "%INTDIR%"
JavaScriptCorePreBuild.cmd首先检查前面的编译有没有问题，如果没有问题，就会调用D: oolscygwinhomexufanWebKitWebKitLibrarieswin oolsscriptsauto-version.sh这个perl脚本，内容如下：
1: #!/usr/bin/bash
2:
3: # Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
4: #
5: # Redistribution and use in source and binary forms, with or without
6: # modification, are permitted provided that the following conditions
7: # are met:
8: # 1. Redistributions of source code must retain the above copyright
9: # notice, this list of conditions and the following disclaimer.
10: # 2. Redistributions in binary form must reproduce the above copyright
11: # notice, this list of conditions and the following disclaimer in the
12: # documentation and/or other materials provided with the distribution.
13: #
14: # THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS AND ANY
15: # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17: # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18: # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19: # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20: # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21: # PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22: # OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23: # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24: # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25:
26:
27: # Trim any trailing or
from the given variable.
28: chomp()
29: {
30: local old_value=$(eval echo "$$1");
31: local value=$(echo "$old_value" | sed s/[
]*$//)
32: eval $1=$value;
33: }
34:
35: if [[ -n "$WEBKITLIBRARIESDIR" ]]; then
36: FALLBACK_VERSION_PATH=`cygpath -u "$WEBKITLIBRARIESDIR\tools\scripts\VERSION"`
37: FALLBACK_VERSION=$(cat "$FALLBACK_VERSION_PATH");
38:
39: COPYRIGHT_END_YEAR_PATH=`cygpath -u "$WEBKITLIBRARIESDIR\tools\scripts\COPYRIGHT-END-YEAR"`
40: COPYRIGHT_END_YEAR=$(cat "$COPYRIGHT_END_YEAR_PATH");
41: chomp COPYRIGHT_END_YEAR
42: fi
43:
44: OUTPUT_FILE=$(cygpath -u "$1")/include/autoversion.h
45: mkdir -p "$(dirname "$OUTPUT_FILE")"
46:
47: # Take the initial version number from RC_PROJECTSOURCEVERSION if it
48: # exists, otherwise fall back to the version number stored in the source.
49: ENVIRONMENT_VERSION="$RC_PROJECTSOURCEVERSION";
50: PROPOSED_VERSION=${ENVIRONMENT_VERSION:-$FALLBACK_VERSION}
51: chomp PROPOSED_VERSION
52:
53: # Split out the three components of the dotted version number. We pad
54: # the input with trailing dots to handle the case where the input version
55: # has fewer components than we expect.
56: BUILD_MAJOR_VERSION=$(echo "$PROPOSED_VERSION.." | cut -d . -f 1)
57: BUILD_MINOR_VERSION=$(echo "$PROPOSED_VERSION.." | cut -d . -f 2)
58: BUILD_TINY_VERSION=$(echo "$PROPOSED_VERSION.." | cut -d . -f 3)
59:
60: # Cut the major component down to three characters by dropping any
61: # extra leading digits, then adjust the major version portion of the
62: # version string to match.
63: CHARACTERS_TO_DROP=$(( ${#BUILD_MAJOR_VERSION} > 3 ? ${#BUILD_MAJOR_VERSION} - 3 : 0 ))
64: BUILD_MAJOR_VERSION=${BUILD_MAJOR_VERSION:$CHARACTERS_TO_DROP}
65: PROPOSED_VERSION=${PROPOSED_VERSION:$CHARACTERS_TO_DROP}
66:
67: # Have the minor and tiny components default to zero if not present.
68: BUILD_MINOR_VERSION=${BUILD_MINOR_VERSION:-0}
69: BUILD_TINY_VERSION=${BUILD_TINY_VERSION:-0}
70:
71: # Split the first component further by using the first digit for the
72: # major version and the remaining two characters as the minor version.
73: # The minor version is shifted down to the tiny version, with the tiny
74: # version becoming the variant version.
75: MAJOR_VERSION=${BUILD_MAJOR_VERSION:0:1}
76: MINOR_VERSION=${BUILD_MAJOR_VERSION:1}
77: TINY_VERSION=${BUILD_MINOR_VERSION}
78: VARIANT_VERSION=${BUIL
补充：综合编程 , 其他综合 ,
