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The following are generic comments about building the PCRE C library "by hand". |
The following are generic comments about building the PCRE C library "by hand". |
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(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 |
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settings that it contains to whatever is appropriate for your environment. |
settings that it contains to whatever is appropriate for your environment. |
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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 |
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define the NEWLINE macro. |
define the NEWLINE macro. |
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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 |
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compiler command line to make any changes that you need. |
compiler command line to make any changes that you need. |
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(2) Copy or rename the file pcre.h.generic as pcre.h. |
NOTE: There have been occasions when the way in which certain parameters |
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in config.h are used has changed between releases. (In the configure/make |
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(3) EITHER: |
world, this is handled automatically.) When upgrading to a new release, |
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Copy or rename file pcre_chartables.c.dist as pcre_chartables.c. |
you are strongly advised to review config.h.generic before re-using what |
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you had previously. |
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OR: |
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Compile dftables.c as a stand-alone program, and then run it with the |
(2) Copy or rename the file pcre.h.generic as pcre.h. |
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single argument "pcre_chartables.c". This generates a set of standard |
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character tables and writes them to that file. The tables are generated |
(3) EITHER: |
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using the default C locale for your system. If you want to use a locale |
Copy or rename file pcre_chartables.c.dist as pcre_chartables.c. |
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that is specified by LC_xxx environment variables, add the -L option to |
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the dftables command. You must use this method if you are building on |
OR: |
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a system that uses EBCDIC code. |
Compile dftables.c as a stand-alone program, and then run it with the |
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single argument "pcre_chartables.c". This generates a set of standard |
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The tables in pcre_chartables.c are defaults. The caller of PCRE can |
character tables and writes them to that file. The tables are generated |
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specify alternative tables at run time. |
using the default C locale for your system. If you want to use a locale |
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that is specified by LC_xxx environment variables, add the -L option to |
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(4) Compile the following source files: |
the dftables command. You must use this method if you are building on |
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a system that uses EBCDIC code. |
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pcre_chartables.c |
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pcre_compile.c |
The tables in pcre_chartables.c are defaults. The caller of PCRE can |
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pcre_config.c |
specify alternative tables at run time. |
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pcre_dfa_exec.c |
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pcre_exec.c |
(4) Ensure that you have the following header files: |
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pcre_fullinfo.c |
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pcre_get.c |
pcre_internal.h |
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pcre_globals.c |
ucp.h |
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pcre_info.c |
ucpinternal.h |
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pcre_maketables.c |
ucptable.h |
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pcre_newline.c |
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pcre_ord2utf8.c |
(5) Also ensure that you have the following file, which is #included as source |
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pcre_refcount.c |
when building a debugging version of PCRE and is also used by pcretest. |
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pcre_study.c |
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pcre_tables.c |
pcre_printint.src |
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pcre_try_flipped.c |
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pcre_ucp_searchfuncs.c |
(6) Compile the following source files: |
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pcre_valid_utf8.c |
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pcre_version.c |
pcre_chartables.c |
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pcre_xclass.c |
pcre_compile.c |
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pcre_config.c |
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Now link them all together into an object library in whichever form your |
pcre_dfa_exec.c |
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system keeps such libraries. This is the basic PCRE C library. If your |
pcre_exec.c |
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system has static and shared libraries, you may have to do this once for |
pcre_fullinfo.c |
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each type. |
pcre_get.c |
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pcre_globals.c |
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(5) Similarly, compile pcreposix.c and link it (on its own) as the pcreposix |
pcre_info.c |
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library. |
pcre_maketables.c |
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pcre_newline.c |
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(6) Compile the test program pcretest.c. This needs the functions in the |
pcre_ord2utf8.c |
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pcre and pcreposix libraries when linking. |
pcre_refcount.c |
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pcre_study.c |
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(7) Run pcretest on the testinput files in the testdata directory, and check |
pcre_tables.c |
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that the output matches the corresponding testoutput files. Note that the |
pcre_try_flipped.c |
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supplied files are in Unix format, with just LF characters as line |
pcre_ucp_searchfuncs.c |
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terminators. You may need to edit them to change this if your system uses a |
pcre_valid_utf8.c |
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different convention. |
pcre_version.c |
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pcre_xclass.c |
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(7) Now link all the compiled code into an object library in whichever form |
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your system keeps such libraries. This is the basic PCRE C library. If |
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your system has static and shared libraries, you may have to do this once |
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for each type. |
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(8) Similarly, compile pcreposix.c and link the result (on its own) as the |
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pcreposix library. |
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(9) Compile the test program pcretest.c. This needs the functions in the |
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pcre and pcreposix libraries when linking. It also needs the |
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pcre_printint.src source file, which it #includes. |
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(10) Run pcretest on the testinput files in the testdata directory, and check |
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that the output matches the corresponding testoutput files. Note that the |
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supplied files are in Unix format, with just LF characters as line |
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terminators. You may need to edit them to change this if your system uses |
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a different convention. |
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(8) 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 |
126 |
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). |
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THE C++ WRAPPER FUNCTIONS |
THE C++ WRAPPER FUNCTIONS |
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147 |
COMMENTS ABOUT WIN32 BUILDS |
COMMENTS ABOUT WIN32 BUILDS |
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There are two ways of building PCRE using the "congifure, make, make install" |
There are two ways of building PCRE using the "configure, make, make install" |
150 |
paradigm on Windows systems: using MinGW or using Cygwin. These are not at all |
paradigm on Windows systems: using MinGW or using Cygwin. These are not at all |
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the same thing; they are completely different from each other. There is also |
the same thing; they are completely different from each other. There is also |
152 |
some experimental, undocumented support for building using "cmake", which you |
some experimental, undocumented support for building using "cmake", which you |
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./configure && make && make install |
./configure && make && make install |
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However, if you want to statically link your program against the .a file, you |
This should create two libraries called libpcre and libpcreposix, and, if you |
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must define PCRE_STATIC before including pcre.h, otherwise the pcre_malloc() |
have enabled building the C++ wrapper, a third one called libpcrecpp. These are |
182 |
and pcre_free() exported functions will be declared __declspec(dllimport), with |
independent libraries: when you like with libpcreposix or libpcrecpp you must |
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also link with libpcre, which contains the basic functions. (Some earlier |
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releases of PCRE included the basic libpcre functions in libpcreposix. This no |
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longer happens.) |
186 |
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If you want to statically link your program against a non-dll .a file, you must |
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define PCRE_STATIC before including pcre.h, otherwise the pcre_malloc() and |
189 |
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pcre_free() exported functions will be declared __declspec(dllimport), with |
190 |
unwanted results. |
unwanted results. |
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192 |
Using Cygwin's compiler generates libraries and executables that depend on |
Using Cygwin's compiler generates libraries and executables that depend on |
215 |
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216 |
The test files that are supplied with PCRE are in Unix format, with LF |
The test files that are supplied with PCRE are in Unix format, with LF |
217 |
characters as line terminators. It may be necessary to change the line |
characters as line terminators. It may be necessary to change the line |
218 |
terminators in order to get some of the tests to work. We hope to improves |
terminators in order to get some of the tests to work. We hope to improve |
219 |
things in this area in future. |
things in this area in future. |
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$! |
$! |
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========================= |
========================= |
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Last Updated: 26 March 2007 |
Last Updated: 05 July 2007 |
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**** |
**** |