1{ stdenv, fetchurl, bison, m4 }:
2
3stdenv.mkDerivation rec {
4 name = "flex-2.6.0";
5
6 src = fetchurl {
7 url = "mirror://sourceforge/flex/${name}.tar.bz2";
8 sha256 = "1sdqx63yadindzafrq1w31ajblf9gl1c301g068s20s7bbpi3ri4";
9 };
10
11 buildInputs = [ bison ];
12
13 propagatedNativeBuildInputs = [ m4 ];
14
15 postConfigure = stdenv.lib.optionalString (stdenv.isDarwin || stdenv.isCygwin) ''
16 sed -i Makefile -e 's/-no-undefined//;'
17 '';
18
19 crossAttrs = {
20
21 # disable tests which can't run on build machine
22 postPatch = ''
23 substituteInPlace Makefile.in --replace "tests" " ";
24 '';
25
26 preConfigure = ''
27 export ac_cv_func_malloc_0_nonnull=yes
28 export ac_cv_func_realloc_0_nonnull=yes
29 '';
30 };
31
32 meta = {
33 homepage = http://flex.sourceforge.net/;
34 description = "A fast lexical analyser generator";
35 platforms = stdenv.lib.platforms.unix;
36 };
37}