5649af8523
The gcc version used on Darwin fails to compile the C++ interface to the PCRE library when optimizations are enabled. Building C++ code with -O0 remedies the problem. This is unsatisfactory, though, because the resulting library is likely to perform more poorly than it would if built with -O2 or -O3. svn path=/nixpkgs/trunk/; revision=24072
38 lines
1.4 KiB
Nix
38 lines
1.4 KiB
Nix
{stdenv, fetchurl, unicodeSupport ? false, cplusplusSupport ? true}:
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stdenv.mkDerivation {
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name = "pcre-7.8";
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src = fetchurl {
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url = mirror://sourceforge/pcre/pcre-7.8.tar.bz2;
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sha256 = "1zsqk352mx2zklf9bgpg9d88ckfdssbbbiyslhrycfckw8m3qpvr";
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};
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# The compiler on Darwin crashes with an internal error while building the
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# C++ interface. Disabling optimizations on that platform remedies the
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# problem. In case we ever update the Darwin GCC version, the exception for
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# that platform ought to be removed.
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configureFlags = ''
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CPPFLAGS=-NDEBUG CFLAGS=-O3 CXXFLAGS=${if stdenv.isDarwin then "-O0" else "-O3"}
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${if unicodeSupport then "--enable-unicode-properties" else ""}
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${if !cplusplusSupport then "--disable-cpp" else ""}
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'';
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meta = {
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homepage = "http://www.pcre.org/";
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description = "A library for Perl Compatible Regular Expressions";
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license = "BSD-3";
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longDescription = ''
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The PCRE library is a set of functions that implement regular
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expression pattern matching using the same syntax and semantics as
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Perl 5. PCRE has its own native API, as well as a set of wrapper
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functions that correspond to the POSIX regular expression API. The
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PCRE library is free, even for building proprietary software.
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'';
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platforms = stdenv.lib.platforms.all;
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maintainers = [ stdenv.lib.maintainers.simons ];
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};
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}
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