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{ stdenv, fetchurl, bison, m4 }:
stdenv.mkDerivation rec {
name = "flex-2.6.0";
src = fetchurl {
url = "mirror://sourceforge/flex/${name}.tar.bz2";
sha256 = "1sdqx63yadindzafrq1w31ajblf9gl1c301g068s20s7bbpi3ri4";
};
buildInputs = [ bison ];
propagatedNativeBuildInputs = [ m4 ];
postConfigure = stdenv.lib.optionalString (stdenv.isDarwin || stdenv.isCygwin) ''
sed -i Makefile -e 's/-no-undefined//;'
'';
crossAttrs = {
preConfigure = ''
export ac_cv_func_malloc_0_nonnull=yes
export ac_cv_func_realloc_0_nonnull=yes
'';
};
meta = {
homepage = http://flex.sourceforge.net/;
description = "A fast lexical analyser generator";
};
}
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