Hi John, apropos gcc's -Wundef :) The attached patch allows to compile static_assert.hpp with that option turned on. While I was at it I've also changed the license reference text and removed a spurious space at the end of the line that begins with 'agurt 15/sep/02:'. Maybe BOOST_BUGGY_INTEGRAL_CONSTANT_EXPRESSIONS could be removed too (replacing it with __BORLANDC__) PS: What's 'agurt'? -- Genny. begin 644 static_assert.hpp.diff M1FEL92!D:69F97)E;F-E(')E<&]R="!G96YE<F%T960@8GD@0U-$:69F(&)Y M($-O;7!O;F5N=%-O9G1W87)E(&]N(#(P+S`S+S(P,#0@,3DN,C`-"@T*0F%S M92!F:6QE.B!#.EQ$3T-5345^,5Q!1$U)3DE^,5Q)35!/4U1^,5Q496UP7'-T M871I8U]A<W-E<G1?;W)I9U\S+FAP<`T*0V]M<&%R960@9FEL93H@1#I<0U93 M(%)E<'-<8F]O<W1<8F]O<W1<8F]O<W1<8F]O<W1<8F]O<W1<<W1A=&EC7V%S M<V5R="YH<'`-"@T*,2PU8S$L-0T*/"`O+R`@*$,I($-O<'ER:6=H="!*;VAN M($UA9&1O8VL@,C`P,"X-"CP@+R\@(%5S92P@;6]D:69I8V%T:6]N(&%N9"!D M:7-T<FEB=71I;VX@87)E('-U8FIE8W0@=&\@=&AE(`T*/"`O+R`@0F]O<W0@ M4V]F='=A<F4@3&EC96YS92P@5F5R<VEO;B`Q+C`N("A3964@86-C;VUP86YY M:6YG(&9I;&4@#0H\("\O("!,24-%3E-%7S%?,"YT>'0@;W(@8V]P>2!A="!H M='1P.B\O=W=W+F)O;W-T+F]R9R],24-%3E-%7S%?,"YT>'0I#0H\(`T*+2TM M#0H^("\O("`@("`@("`@("`@*$,I($-O<'ER:6=H="!*;VAN($UA9&1O8VL@ M,C`P,"X-"CX@+R\@1&ES=')I8G5T960@=6YD97(@=&AE($)O;W-T(%-O9G1W M87)E($QI8V5N<V4L(%9E<G-I;VX@,2XP+@T*/B`O+R`@("`H4V5E(&%C8V]M M<&%N>6EN9R!F:6QE($Q)0T5.4T5?,5\P+G1X="!O<B!C;W!Y(&%T#0H^("\O M("`@("`@("`@(&AT='`Z+R]W=W<N8F]O<W0N;W)G+TQ)0T5.4T5?,5\P+G1X M="D-"CX@+R\-"C8Q8S8Q#0H\("`@("`A0D]/4U1?5T]22T%23U5.1"A?7TU7 M15)+4U]?+"`\(#!X,S`P,RD-"BTM+0T*/B`@("`@(2AD969I;F5D(%]?35=% M4DM37U\@)B8@0D]/4U1?5T]22T%23U5.1"A?7TU715)+4U]?+"`\(#!X,S`P M,RDI#0HW-F,W-@T*/"`O+R!A9W5R="`Q-2]S97`O,#(Z(&$@<W!E8VEA;"!C M87)E(&ES(&YE961E9"!T;R!F;W)C92!);G1E;"!#*RL@:7-S=64@86X@97)R M;W(@#0HM+2T-"CX@+R\@86=U<G0@,34O<V5P+S`R.B!A('-P96-I86P@8V%R M92!I<R!N965D960@=&\@9F]R8V4@26YT96P@0RLK(&ES<W5E(&%N(&5R<F]R M#0H-"@T*/"TM+2TM+2TM+2TM+2TM+2TM+2TM+2`@16YD(&]F(')E<&]R="`@ :+2TM+2TM+2TM+2TM+2TM+2TM+2TM/@T*#0HM ` end