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Building PCRE on a Unix-like system |
Building PCRE on a Unix-like system |
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----------------------------------- |
----------------------------------- |
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If you are using HP's ANSI C++ compiler (aCC), please see the special note |
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in the section entitled "Using HP's ANSI C++ compiler (aCC)" below. |
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To build PCRE on a Unix-like system, first run the "configure" command from the |
To build PCRE on a Unix-like system, first run the "configure" command from the |
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PCRE distribution directory, with your current directory set to the directory |
PCRE distribution directory, with your current directory set to the directory |
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where you want the files to be created. This command is a standard GNU |
where you want the files to be created. This command is a standard GNU |
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cd /build/pcre/pcre-xxx |
cd /build/pcre/pcre-xxx |
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/source/pcre/pcre-xxx/configure |
/source/pcre/pcre-xxx/configure |
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PCRE is written in C and is normally compiled as a C library. However, it is |
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possible to build it as a C++ library, though the provided building apparatus |
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does not have any features to support this. |
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There are some optional features that can be included or omitted from the PCRE |
There are some optional features that can be included or omitted from the PCRE |
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library. You can read more about them in the pcrebuild man page. |
library. You can read more about them in the pcrebuild man page. |
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property table); only the basic two-letter properties such as Lu are |
property table); only the basic two-letter properties such as Lu are |
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supported. |
supported. |
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. You can build PCRE to recognized CR or NL as the newline character, instead |
. You can build PCRE to recognize either CR or LF as the newline character, |
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of whatever your compiler uses for "\n", by adding --newline-is-cr or |
instead of whatever your compiler uses for "\n", by adding --newline-is-cr or |
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--newline-is-nl to the "configure" command, respectively. Only do this if you |
--newline-is-lf to the "configure" command, respectively. Only do this if you |
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really understand what you are doing. On traditional Unix-like systems, the |
really understand what you are doing. On traditional Unix-like systems, the |
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newline character is NL. |
newline character is LF. |
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. When called via the POSIX interface, PCRE uses malloc() to get additional |
. When called via the POSIX interface, PCRE uses malloc() to get additional |
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storage for processing capturing parentheses if there are more than 10 of |
storage for processing capturing parentheses if there are more than 10 of |
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to the values of CC and CFLAGS. |
to the values of CC and CFLAGS. |
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Using HP's ANSI C++ compiler (aCC) |
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---------------------------------- |
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Unless C++ support is disabled by specifiying the "--disable-cpp" option of the |
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"configure" script, you *must* include the "-AA" option in the CXXFLAGS |
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environment variable in order for the C++ components to compile correctly. |
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Also, note that the aCC compiler on PA-RISC platforms may have a defect whereby |
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needed libraries fail to get included when specifying the "-AA" compiler |
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option. If you experience unresolved symbols when linking the C++ programs, |
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use the workaround of specifying the following environment variable prior to |
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running the "configure" script: |
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CXXLDFLAGS="-lstd_v2 -lCsup_v2" |
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Building on non-Unix systems |
Building on non-Unix systems |
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---------------------------- |
---------------------------- |
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pcre_internal.h header for internal use |
pcre_internal.h header for internal use |
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config.in template for config.h, which is built by configure |
config.in template for config.h, which is built by configure |
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pcrecpp.h.in "source" for the header file for the C++ wrapper |
pcrecpp.h the header file for the C++ wrapper |
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pcrecpparg.h.in "source" for another C++ header file |
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pcrecpp.cc ) |
pcrecpp.cc ) |
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pcre_scanner.cc ) source for the C++ wrapper library |
pcre_scanner.cc ) source for the C++ wrapper library |
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Philip Hazel |
Philip Hazel |
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Email local part: ph10 |
Email local part: ph10 |
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Email domain: cam.ac.uk |
Email domain: cam.ac.uk |
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August 2005 |
January 2006 |