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A prefix is used in preference to a namespace to facilitate exposing functions
to C code.
diff --git a/fdlibm.h b/fdlibm.h
--- a/fdlibm.h
+++ b/fdlibm.h
@@ -16,67 +16,67 @@
#ifndef mozilla_imported_fdlibm_h
#define mozilla_imported_fdlibm_h
#ifndef M_PI_2
#define M_PI_2 1.57079632679489661923 /* pi/2 */
#endif
-double acos(double);
-double asin(double);
-double atan(double);
-double atan2(double, double);
-double cos(double);
-double sin(double);
-double tan(double);
+double fdlibm_acos(double);
+double fdlibm_asin(double);
+double fdlibm_atan(double);
+double fdlibm_atan2(double, double);
+double fdlibm_cos(double);
+double fdlibm_sin(double);
+double fdlibm_tan(double);
-double cosh(double);
-double sinh(double);
-double tanh(double);
+double fdlibm_cosh(double);
+double fdlibm_sinh(double);
+double fdlibm_tanh(double);
-double exp(double);
-double log(double);
-double log10(double);
+double fdlibm_exp(double);
+double fdlibm_log(double);
+double fdlibm_log10(double);
-double pow(double, double);
+double fdlibm_pow(double, double);
-double ceil(double);
-double fabs(double);
-double floor(double);
+double fdlibm_ceil(double);
+double fdlibm_fabs(double);
+double fdlibm_floor(double);
-double acosh(double);
-double asinh(double);
-double atanh(double);
-double cbrt(double);
-double exp2(double);
-double expm1(double);
-double hypot(double, double);
-double log1p(double);
-double log2(double);
-double rint(double);
-double copysign(double, double);
-double nearbyint(double);
-double scalbn(double, int);
-double trunc(double);
-float acosf(float);
-float asinf(float);
-float atanf(float);
-float cosf(float);
-float sinf(float);
-float tanf(float);
-float exp2f(float);
-float expf(float);
-float log10f(float);
-float logf(float);
-float powf(float, float);
-float sqrtf(float);
+double fdlibm_acosh(double);
+double fdlibm_asinh(double);
+double fdlibm_atanh(double);
+double fdlibm_cbrt(double);
+double fdlibm_exp2(double);
+double fdlibm_expm1(double);
+double fdlibm_hypot(double, double);
+double fdlibm_log1p(double);
+double fdlibm_log2(double);
+double fdlibm_rint(double);
+double fdlibm_copysign(double, double);
+double fdlibm_nearbyint(double);
+double fdlibm_scalbn(double, int);
+double fdlibm_trunc(double);
+float fdlibm_acosf(float);
+float fdlibm_asinf(float);
+float fdlibm_atanf(float);
+float fdlibm_cosf(float);
+float fdlibm_sinf(float);
+float fdlibm_tanf(float);
+float fdlibm_exp2f(float);
+float fdlibm_expf(float);
+float fdlibm_log10f(float);
+float fdlibm_logf(float);
+float fdlibm_powf(float, float);
+float fdlibm_sqrtf(float);
-float ceilf(float);
-float fabsf(float);
-float floorf(float);
-float hypotf(float, float);
-float nearbyintf(float);
-float rintf(float);
-float scalbnf(float, int);
-float truncf(float);
+float fdlibm_ceilf(float);
+float fdlibm_fabsf(float);
+float fdlibm_floorf(float);
+float fdlibm_hypotf(float, float);
+float fdlibm_nearbyintf(float);
+float fdlibm_rintf(float);
+float fdlibm_scalbnf(float, int);
+float fdlibm_truncf(float);
#endif /* !mozilla_imported_fdlibm_h */
diff --git a/math_private.h b/math_private.h
--- a/math_private.h
+++ b/math_private.h
@@ -867,16 +867,69 @@ irintl(long double x)
#define __ieee754_j1f j1f
#define __ieee754_y0f y0f
#define __ieee754_y1f y1f
#define __ieee754_jnf jnf
#define __ieee754_ynf ynf
#define __ieee754_remainderf remainderf
#define __ieee754_scalbf scalbf
+#define acos fdlibm_acos
+#define acosf fdlibm_acosf
+#define asin fdlibm_asin
+#define asinf fdlibm_asinf
+#define atan fdlibm_atan
+#define atanf fdlibm_atanf
+#define atan2 fdlibm_atan2
+#define cos fdlibm_cos
+#define cosf fdlibm_cosf
+#define sin fdlibm_sin
+#define sinf fdlibm_sinf
+#define tan fdlibm_tan
+#define tanf fdlibm_tanf
+#define cosh fdlibm_cosh
+#define sinh fdlibm_sinh
+#define tanh fdlibm_tanh
+#define exp fdlibm_exp
+#define expf fdlibm_expf
+#define exp2 fdlibm_exp2
+#define exp2f fdlibm_exp2f
+#define log fdlibm_log
+#define logf fdlibm_logf
+#define log10 fdlibm_log10
+#define log10f fdlibm_log10f
+#define pow fdlibm_pow
+#define powf fdlibm_powf
+#define ceil fdlibm_ceil
+#define ceilf fdlibm_ceilf
+#define fabs fdlibm_fabs
+#define fabsf fdlibm_fabsf
+#define floor fdlibm_floor
+#define acosh fdlibm_acosh
+#define asinh fdlibm_asinh
+#define atanh fdlibm_atanh
+#define cbrt fdlibm_cbrt
+#define expm1 fdlibm_expm1
+#define hypot fdlibm_hypot
+#define hypotf fdlibm_hypotf
+#define log1p fdlibm_log1p
+#define log2 fdlibm_log2
+#define scalb fdlibm_scalb
+#define copysign fdlibm_copysign
+#define scalbn fdlibm_scalbn
+#define scalbnf fdlibm_scalbnf
+#define trunc fdlibm_trunc
+#define truncf fdlibm_truncf
+#define floorf fdlibm_floorf
+#define nearbyint fdlibm_nearbyint
+#define nearbyintf fdlibm_nearbyintf
+#define rint fdlibm_rint
+#define rintf fdlibm_rintf
+#define sqrtf fdlibm_sqrtf
+
/* fdlibm kernel function */
int __kernel_rem_pio2(double*,double*,int,int,int);
/* double precision kernel functions */
#ifndef INLINE_REM_PIO2
int __ieee754_rem_pio2(double,double*);
#endif
double __kernel_sin(double,double,int);