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Revision 63 - (hide annotations) (download)
Sat Feb 24 21:40:03 2007 UTC (7 years, 2 months ago) by nigel
File size: 4790 byte(s)
Load pcre-4.0 into code/trunk.

1 nigel 41 Compiling PCRE on non-Unix systems
2     ----------------------------------
4 nigel 63 See below for comments on Cygwin or MinGW usage.
6 nigel 41 If you want to compile PCRE for a non-Unix system, note that it consists
7     entirely of code written in Standard C, and so should compile successfully
8     on any machine with a Standard C compiler and library, using normal compiling
9     commands to do the following:
11 nigel 43 (1) Copy or rename the file config.in as config.h, and change the macros that
12     define HAVE_STRERROR and HAVE_MEMMOVE to define them as 1 rather than 0.
13     Unfortunately, because of the way Unix autoconf works, the default setting has
14 nigel 53 to be 0. You may also want to make changes to other macros in config.h. In
15     particular, if you want to force a specific value for newline, you can define
16     the NEWLINE macro. The default is to use '\n', thereby using whatever value
17     your compiler gives to '\n'.
18 nigel 41
19 nigel 43 (2) Copy or rename the file pcre.in as pcre.h, and change the macro definitions
20     for PCRE_MAJOR, PCRE_MINOR, and PCRE_DATE near its start to the values set in
21     configure.in.
23     (3) Compile dftables.c as a stand-alone program, and then run it with
24 nigel 41 the standard output sent to chartables.c. This generates a set of standard
25     character tables.
27 nigel 43 (4) Compile maketables.c, get.c, study.c and pcre.c and link them all
28 nigel 41 together into an object library in whichever form your system keeps such
29 nigel 63 libraries. This is the pcre library (chartables.c is included by means of an
30 nigel 41 #include directive).
32 nigel 43 (5) Similarly, compile pcreposix.c and link it as the pcreposix library.
33 nigel 41
34 nigel 43 (6) Compile the test program pcretest.c. This needs the functions in the
35 nigel 41 pcre and pcreposix libraries when linking.
37 nigel 43 (7) Run pcretest on the testinput files in the testdata directory, and check
38 nigel 41 that the output matches the corresponding testoutput files. You must use the
39 nigel 63 -i option when checking testinput2. Note that the supplied files are in Unix
40     format, with just LF characters as line terminators. You may need to edit them
41     to change this if your system uses a different convention.
42 nigel 41
43     If you have a system without "configure" but where you can use a Makefile, edit
44     Makefile.in to create Makefile, substituting suitable values for the variables
45     at the head of the file.
47     Some help in building a Win32 DLL of PCRE in GnuWin32 environments was
48 nigel 63 contributed by Paul Sokolovsky. These environments are Mingw32
49     (http://www.xraylith.wisc.edu/~khan/software/gnu-win32/) and CygWin
50     (http://sourceware.cygnus.com/cygwin/). Paul comments:
51 nigel 41
52     For CygWin, set CFLAGS=-mno-cygwin, and do 'make dll'. You'll get
53     pcre.dll (containing pcreposix also), libpcre.dll.a, and dynamically
54     linked pgrep and pcretest. If you have /bin/sh, run RunTest (three
55     main test go ok, locale not supported).
57 nigel 63 Changes to do MinGW with autoconf 2.50 were supplied by Fred Cox
58     <sailorFred@yahoo.com>, who comments as follows:
60     If you are using the PCRE DLL, the normal Unix style configure && make &&
61     make check && make install should just work[*]. If you want to statically
62     link against the .a file, you must define PCRE_STATIC before including
63     pcre.h, otherwise the pcre_malloc and pcre_free exported functions will be
64     declared __declspec(dllimport), with hilarious results. See the configure.in
65     and pcretest.c for how it is done for the static test.
67     Also, there will only be a libpcre.la, not a libpcreposix.la, as you
68     would expect from the Unix version. The single DLL includes the pcreposix
69     interface.
71     [*] But note that the supplied test files are in Unix format, with just LF
72     characters as line terminators. You will have to edit them to change to CR LF
73     terminators.
75     A script for building PCRE using Borland's C++ compiler for use with VPASCAL
76     was contributed by Alexander Tokarev. It is called makevp.bat.
78     These are some further comments about Win32 builds from Mark Evans. They
79     were contributed before Fred Cox's changes were made, so it is possible that
80     they may no longer be relevant.
82     The documentation for Win32 builds is a bit shy. Under MSVC6 I
83     followed their instructions to the letter, but there were still
84     some things missing.
86     (1) Must #define STATIC for entire project if linking statically.
87     (I see no reason to use DLLs for code this compact.) This of
88     course is a project setting in MSVC under Preprocessor.
90     (2) Missing some #ifdefs relating to the function pointers
91     pcre_malloc and pcre_free. See my solution below. (The stubs
92     may not be mandatory but they made me feel better.)
94     =========================
95     #ifdef _WIN32
96     #include <malloc.h>
98     void* malloc_stub(size_t N)
99     { return malloc(N); }
100     void free_stub(void* p)
101     { free(p); }
102     void *(*pcre_malloc)(size_t) = &malloc_stub;
103     void (*pcre_free)(void *) = &free_stub;
105     #else
107     void *(*pcre_malloc)(size_t) = malloc;
108     void (*pcre_free)(void *) = free;
110     #endif
111     =========================
113 nigel 41 ****

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