Mercurial > mxe-octave
diff src/mingw-w64-2-float-h.patch @ 3554:b1ca68ddd02c
build native-gcc using untared dependancies within gcc source tree
* src/native-gcc.mk: untar gmp, mpc, mpfr, cloog and isl into the gcc source tree before configure and build, set sysroot.
* src/native-binutils.mk: set sysroot path.
* src/mingw-w64-1-math-h.patch, mingw-w64-2-float-h.patch: New files.
author | John Donoghue <john.donoghue@ieee.org> |
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date | Fri, 21 Feb 2014 06:05:39 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/mingw-w64-2-float-h.patch Fri Feb 21 06:05:39 2014 -0500 @@ -0,0 +1,25 @@ +This file is part of MXE. +See index.html for further information. + +workaround for -isystem flag messing up include order +https://bugzilla.redhat.com/show_bug.cgi?id=843436 + +diff -ur a/mingw-w64-headers/crt/float.h b/mingw-w64-headers/crt/float.h +--- a/mingw-w64-headers/crt/float.h 2014-01-11 21:38:50.640418500 +1100 ++++ b/mingw-w64-headers/crt/float.h 2014-01-11 21:44:08.528393903 +1100 +@@ -105,6 +105,15 @@ + #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__ + #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__ + ++ /* The difference between 1 and the least value greater than 1 that is ++ representable in the given floating point type, b**1-p. */ ++ #undef FLT_EPSILON ++ #undef DBL_EPSILON ++ #undef LDBL_EPSILON ++ #define FLT_EPSILON __FLT_EPSILON__ ++ #define DBL_EPSILON __DBL_EPSILON__ ++ #define LDBL_EPSILON __LDBL_EPSILON__ ++ + /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown. */ + /* ??? This is supposed to change with calls to fesetround in <fenv.h>. */ + #undef FLT_ROUNDS