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revision 197 by ph10, Tue Jul 31 10:50:18 2007 UTC revision 259 by ph10, Wed Sep 19 09:52:44 2007 UTC
# Line 7  This document contains the following sec Line 7  This document contains the following sec
7    Generic instructions for the PCRE C library    Generic instructions for the PCRE C library
8    The C++ wrapper functions    The C++ wrapper functions
9    Building for virtual Pascal    Building for virtual Pascal
10      Stack size in Windows environments
11    Comments about Win32 builds    Comments about Win32 builds
12      Building PCRE with Cmake
13    Building under Windows with BCC5.5    Building under Windows with BCC5.5
14    Building PCRE on OpenVMS    Building PCRE on OpenVMS
15    
16    
17  GENERAL  GENERAL
18    
19  I (Philip Hazel) have no knowledge of Windows or VMS sytems and how their  I (Philip Hazel) have no experience of Windows or VMS sytems and how their
20  libraries work. The items in the PCRE distribution and Makefile that relate to  libraries work. The items in the PCRE distribution and Makefile that relate to
21  anything other than Unix-like systems are untested by me.  anything other than Unix-like systems are untested by me.
22    
# Line 30  successfully on any system that has a St Line 32  successfully on any system that has a St
32  wrapper functions are a separate issue (see below).  wrapper functions are a separate issue (see below).
33    
34  The PCRE distribution contains some experimental support for "cmake", but this  The PCRE distribution contains some experimental support for "cmake", but this
35  is incomplete and not documented. However if you are a "cmake" user you might  is incomplete and not fully documented. However if you are a "cmake" user you
36  like to try building with "cmake".  might like to try building with "cmake". There are some instructions in the
37    section entitled "Building PCRE with Cmake" below.
38    
39    
40  GENERIC INSTRUCTIONS FOR THE PCRE C LIBRARY  GENERIC INSTRUCTIONS FOR THE PCRE C LIBRARY
# Line 41  The following are generic comments about Line 44  The following are generic comments about
44   (1) Copy or rename the file config.h.generic as config.h, and edit the macro   (1) Copy or rename the file config.h.generic as config.h, and edit the macro
45       settings that it contains to whatever is appropriate for your environment.       settings that it contains to whatever is appropriate for your environment.
46       In particular, if you want to force a specific value for newline, you can       In particular, if you want to force a specific value for newline, you can
47       define the NEWLINE macro.       define the NEWLINE macro. When you compile any of the PCRE modules, you
48         must specify -DHAVE_CONFIG_H to your compiler so that config.h is included
49         in the sources.
50    
51       An alternative approach is not to edit config.h, but to use -D on the       An alternative approach is not to edit config.h, but to use -D on the
52       compiler command line to make any changes that you need.       compiler command line to make any changes that you need to the
53         configuration options. In this case -DHAVE_CONFIG_H must not be set.
54    
55       NOTE: There have been occasions when the way in which certain parameters       NOTE: There have been occasions when the way in which certain parameters
56       in config.h are used has changed between releases. (In the configure/make       in config.h are used has changed between releases. (In the configure/make
# Line 58  The following are generic comments about Line 64  The following are generic comments about
64         Copy or rename file pcre_chartables.c.dist as pcre_chartables.c.         Copy or rename file pcre_chartables.c.dist as pcre_chartables.c.
65    
66       OR:       OR:
67         Compile dftables.c as a stand-alone program, and then run it with the         Compile dftables.c as a stand-alone program (using -DHAVE_CONFIG_H if
68         single argument "pcre_chartables.c". This generates a set of standard         you have set up config.h), and then run it with the single argument
69         character tables and writes them to that file. The tables are generated         "pcre_chartables.c". This generates a set of standard character tables
70         using the default C locale for your system. If you want to use a locale         and writes them to that file. The tables are generated using the default
71         that is specified by LC_xxx environment variables, add the -L option to         C locale for your system. If you want to use a locale that is specified
72         the dftables command. You must use this method if you are building on         by LC_xxx environment variables, add the -L option to the dftables
73         a system that uses EBCDIC code.         command. You must use this method if you are building on a system that
74           uses EBCDIC code.
75    
76       The tables in pcre_chartables.c are defaults. The caller of PCRE can       The tables in pcre_chartables.c are defaults. The caller of PCRE can
77       specify alternative tables at run time.       specify alternative tables at run time.
# Line 81  The following are generic comments about Line 88  The following are generic comments about
88    
89         pcre_printint.src         pcre_printint.src
90    
91   (6) Compile the following source files:   (6) Compile the following source files, setting -DHAVE_CONFIG_H as a compiler
92         option if you have set up config.h with your configuration, or else use
93         other -D settings to change the configuration as required.
94    
95         pcre_chartables.c         pcre_chartables.c
96         pcre_compile.c         pcre_compile.c
# Line 104  The following are generic comments about Line 113  The following are generic comments about
113         pcre_version.c         pcre_version.c
114         pcre_xclass.c         pcre_xclass.c
115    
116         Make sure that you include -I. in the compiler command (or equivalent for
117         an unusual compiler) so that all included PCRE header files are first
118         sought in the current directory. Otherwise you run the risk of picking up
119         a previously-installed file from somewhere else.
120    
121   (7) Now link all the compiled code into an object library in whichever form   (7) Now link all the compiled code into an object library in whichever form
122       your system keeps such libraries. This is the basic PCRE C library. If       your system keeps such libraries. This is the basic PCRE C library. If
123       your system has static and shared libraries, you may have to do this once       your system has static and shared libraries, you may have to do this once
124       for each type.       for each type.
125    
126   (8) Similarly, compile pcreposix.c and link the result (on its own) as the   (8) Similarly, compile pcreposix.c (remembering -DHAVE_CONFIG_H if necessary)
127       pcreposix library.       and link the result (on its own) as the pcreposix library.
128    
129   (9) Compile the test program pcretest.c. This needs the functions in the   (9) Compile the test program pcretest.c (again, don't forget -DHAVE_CONFIG_H).
130       pcre and pcreposix libraries when linking. It also needs the       This needs the functions in the pcre and pcreposix libraries when linking.
131       pcre_printint.src source file, which it #includes.       It also needs the pcre_printint.src source file, which it #includes.
132    
133  (10) Run pcretest on the testinput files in the testdata directory, and check  (10) Run pcretest on the testinput files in the testdata directory, and check
134       that the output matches the corresponding testoutput files. Note that the       that the output matches the corresponding testoutput files. Note that the
135       supplied files are in Unix format, with just LF characters as line       supplied files are in Unix format, with just LF characters as line
136       terminators. You may need to edit them to change this if your system uses       terminators. You may need to edit them to change this if your system uses
137       a different convention.       a different convention. If you are using Windows, you probably should use
138         the wintestinput3 file instead of testinput3 (and the corresponding output
139         file). This is a locale test; wintestinput3 sets the locale to "french"
140         rather than "fr_FR", and there some minor output differences.
141    
142  (11) If you want to use the pcregrep command, compile and link pcregrep.c; it  (11) If you want to use the pcregrep command, compile and link pcregrep.c; it
143       uses only the basic PCRE library (it does not need the pcreposix library).       uses only the basic PCRE library (it does not need the pcreposix library).
# Line 144  additional files. The following files in Line 161  additional files. The following files in
161  for use with VP/Borland: makevp_c.txt, makevp_l.txt, makevp.bat, pcregexp.pas.  for use with VP/Borland: makevp_c.txt, makevp_l.txt, makevp.bat, pcregexp.pas.
162    
163    
164    STACK SIZE IN WINDOWS ENVIRONMENTS
165    
166    The default processor stack size of 1Mb in some Windows environments is too
167    small for matching patterns that need much recursion. In particular, test 2 may
168    fail because of this. Normally, running out of stack causes a crash, but there
169    have been cases where the test program has just died silently. See your linker
170    documentation for how to increase stack size if you experience problems. The
171    Linux default of 8Mb is a reasonable choice for the stack, though even that can
172    be too small for some pattern/subject combinations. There is more about stack
173    usage in the "pcrestack" documentation.
174    
175    
176  COMMENTS ABOUT WIN32 BUILDS  COMMENTS ABOUT WIN32 BUILDS
177    
178  There are two ways of building PCRE using the "configure, make, make install"  There are two ways of building PCRE using the "configure, make, make install"
# Line 219  terminators in order to get some of the Line 248  terminators in order to get some of the
248  things in this area in future.  things in this area in future.
249    
250    
251    BUILDING PCRE WITH CMAKE
252    
253    These instructions were contributed by a PCRE user.
254    
255    1. Download CMake 2.4.7 or above from http://www.cmake.org/, install and ensure
256       that cmake\bin is on your path.
257    
258    2. Unzip (retaining folder structure) the PCRE source tree into a source
259       directory such as C:\pcre.
260    
261    3. Create a new, empty build directory: C:\pcre\build\
262    
263    4. Run CMakeSetup from the Shell envirornment of your build tool, e.g., Msys
264       for Msys/MinGW or Visual Studio Command Prompt for VC/VC++
265    
266    5. Enter C:\pcre\pcre-xx and C:\pcre\build for the source and build
267       directories, respectively
268    
269    6. Hit the "Configure" button.
270    
271    7. Select the particular IDE / build tool that you are using (Visual Studio,
272       MSYS makefiles, MinGW makefiles, etc.)
273    
274    8. The GUI will then list several configuration options. This is where you can
275       enable UTF-8 support, etc.
276    
277    9. Hit "Configure" again. The adjacent "OK" button should now be active.
278    
279    10. Hit "OK".
280    
281    11. The build directory should now contain a usable build system, be it a
282        solution file for Visual Studio, makefiles for MinGW, etc.
283    
284    Testing with RunTest.bat
285    
286    1. Copy RunTest.bat into the directory where pcretest.exe has been created.
287    
288    2. Edit RunTest.bat and insert a line that indentifies the relative location of
289       the pcre source, e.g.:
290    
291       set srcdir=..\pcre-7.4-RC3
292    
293    3. Run RunTest.bat from a command shell environment. Test outputs will
294       automatically be compared to expected results, and discrepancies will
295       identified in the console output.
296    
297    4. To test pcrecpp, run pcrecpp_unittest.exe, pcre_stringpiece_unittest.exe and
298       pcre_scanner_unittest.exe.
299    
300    
301  BUILDING UNDER WINDOWS WITH BCC5.5  BUILDING UNDER WINDOWS WITH BCC5.5
302    
303  Michael Roy sent these comments about building PCRE under Windows with BCC5.5:  Michael Roy sent these comments about building PCRE under Windows with BCC5.5:
# Line 297  $!   Locale could not be set to fr Line 376  $!   Locale could not be set to fr
376  $!  $!
377  =========================  =========================
378    
379  Last Updated: 05 July 2007  Last Updated: 17 September 2007
380  ****  ****

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