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lib/libm_dbl: Allow building when DBL_EPSILON is defined in <float.h>.

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This is the case in arm-none-eabi-gcc 14.2.1 (debian trixie).

This fixes a diagnostic like:

    ../../lib/libm_dbl/libm.h:92:9: error:
        "DBL_EPSILON" redefined [-Werror]
    /usr/lib/gcc/arm-none-eabi/14.2.1/include/float.h:114:9: note:
        this is the location of the previous definition

when building MPS2_AN500 (qemu port).

Signed-off-by: Jeff Epler <jepler@unpythonic.net>
This commit is contained in:
Jeff Epler
2025-10-13 11:26:54 -05:00
committed by Damien George
parent 007f127a61
commit 2af0c52a91
1 changed files with 2 additions and 0 deletions
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2
lib/libm_dbl/libm.h
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@@ -89,7 +89,9 @@ do { \
(d) = __u.f; \
} while (0)
#if !defined(DBL_EPSILON)
#define DBL_EPSILON 2.22044604925031308085e-16
#endif
int __rem_pio2(double, double*);
int __rem_pio2_large(double*, double*, int, int, int);