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annotate src/mingw-w64-2-float-h.patch @ 3554:b1ca68ddd02c

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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>
date Fri, 21 Feb 2014 06:05:39 -0500
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3554
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
John Donoghue <john.donoghue@ieee.org>
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1 This file is part of MXE.
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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2 See index.html for further information.
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3
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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4 workaround for -isystem flag messing up include order
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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5 https://bugzilla.redhat.com/show_bug.cgi?id=843436
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6
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7 diff -ur a/mingw-w64-headers/crt/float.h b/mingw-w64-headers/crt/float.h
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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8 --- a/mingw-w64-headers/crt/float.h 2014-01-11 21:38:50.640418500 +1100
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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9 +++ b/mingw-w64-headers/crt/float.h 2014-01-11 21:44:08.528393903 +1100
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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10 @@ -105,6 +105,15 @@
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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11 #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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12 #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__
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13
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14 + /* The difference between 1 and the least value greater than 1 that is
b1ca68ddd02c build native-gcc using untared dependancies within gcc source tree
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15 + representable in the given floating point type, b**1-p. */
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16 + #undef FLT_EPSILON
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17 + #undef DBL_EPSILON
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18 + #undef LDBL_EPSILON
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19 + #define FLT_EPSILON __FLT_EPSILON__
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20 + #define DBL_EPSILON __DBL_EPSILON__
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21 + #define LDBL_EPSILON __LDBL_EPSILON__
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22 +
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23 /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown. */
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24 /* ??? This is supposed to change with calls to fesetround in <fenv.h>. */
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25 #undef FLT_ROUNDS