37 lines
938 B
Diff
37 lines
938 B
Diff
fpu_control.h is glibc specific, but we only need some bits from it.
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--- a/ieee-utils/fp-gnuppc.c
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+++ b/ieee-utils/fp-gnuppc.c
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@@ -18,7 +18,31 @@
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*/
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#include <stdio.h>
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+
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+#if defined(__GLIBC__)
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#include <fpu_control.h>
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+#else
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+/* copied from fpu_control.h, only stuff that is needed here */
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+# define _FPU_RC_NEAREST 0x00
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+# define _FPU_RC_DOWN 0x03
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+# define _FPU_RC_UP 0x02
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+# define _FPU_RC_ZERO 0x01
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+
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+# define _FPU_MASK_ZM 0x10
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+# define _FPU_MASK_OM 0x40
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+# define _FPU_MASK_UM 0x20
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+# define _FPU_MASK_IM 0x80
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+
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+# define _FPU_SETCW(cw) \
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+ { union { double __d; unsigned long long __ll; } __u; \
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+ register double __fr; \
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+ __u.__ll = 0xfff80000LL << 32; /* This is a QNaN. */ \
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+ __u.__ll |= (cw) & 0xffffffffLL; \
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+ __fr = __u.__d; \
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+ __asm__ __volatile__("mtfsf 255,%0" : : "f" (__fr)); \
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+ }
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+#endif
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+
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#include <gsl/gsl_errno.h>
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#include <gsl/gsl_ieee_utils.h>
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