diff --git a/lib/libc/mingw/math/x86/fmodf.c b/lib/libc/mingw/math/x86/fmodf.c
deleted file mode 100644
index 45106adaa6..0000000000
--- a/lib/libc/mingw/math/x86/fmodf.c
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
- * This file has no copyright assigned and is placed in the Public Domain.
- * This file is part of the mingw-w64 runtime package.
- * No warranty is given; refer to the file DISCLAIMER.PD within this package.
- */
-/*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Public domain.
- *
- * Adapted for float type by Danny Smith
- *  <dannysmith@users.sourceforge.net>.
- */
-
-#include <math.h>
-
-float
-fmodf (float x, float y)
-{
-  float res = 0.0F;
-
-  asm volatile (
-       "1:\tfprem\n\t"
-       "fstsw   %%ax\n\t"
-       "sahf\n\t"
-       "jp      1b\n\t"
-       "fstp    %%st(1)"
-       : "=t" (res) : "0" (x), "u" (y) : "ax", "st(1)");
-  return res;
-}
diff --git a/lib/libc/mingw/math/x86/fmodl.c b/lib/libc/mingw/math/x86/fmodl.c
deleted file mode 100644
index 462b6fa79f..0000000000
--- a/lib/libc/mingw/math/x86/fmodl.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/**
- * This file has no copyright assigned and is placed in the Public Domain.
- * This file is part of the mingw-w64 runtime package.
- * No warranty is given; refer to the file DISCLAIMER.PD within this package.
- */
-long double fmodl (long double x, long double y);
-
-long double
-fmodl (long double x, long double y)
-{
-  long double res = 0.0L;
-
-  asm volatile (
-       "1:\tfprem\n\t"
-       "fstsw   %%ax\n\t"
-       "sahf\n\t"
-       "jp      1b\n\t"
-       "fstp    %%st(1)"
-       : "=t" (res) : "0" (x), "u" (y) : "ax", "st(1)");
-  return res;
-}
diff --git a/lib/libc/musl/src/math/i386/fmod.c b/lib/libc/musl/src/math/i386/fmod.c
deleted file mode 100644
index ea0c58d9b4..0000000000
--- a/lib/libc/musl/src/math/i386/fmod.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#include <math.h>
-
-double fmod(double x, double y)
-{
-	unsigned short fpsr;
-	// fprem does not introduce excess precision into x
-	do __asm__ ("fprem; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y));
-	while (fpsr & 0x400);
-	return x;
-}
diff --git a/lib/libc/musl/src/math/i386/fmodf.c b/lib/libc/musl/src/math/i386/fmodf.c
deleted file mode 100644
index 90b56ab0fa..0000000000
--- a/lib/libc/musl/src/math/i386/fmodf.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#include <math.h>
-
-float fmodf(float x, float y)
-{
-	unsigned short fpsr;
-	// fprem does not introduce excess precision into x
-	do __asm__ ("fprem; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y));
-	while (fpsr & 0x400);
-	return x;
-}
diff --git a/lib/libc/musl/src/math/i386/fmodl.c b/lib/libc/musl/src/math/i386/fmodl.c
deleted file mode 100644
index 3daeab0600..0000000000
--- a/lib/libc/musl/src/math/i386/fmodl.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <math.h>
-
-long double fmodl(long double x, long double y)
-{
-	unsigned short fpsr;
-	do __asm__ ("fprem; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y));
-	while (fpsr & 0x400);
-	return x;
-}
diff --git a/lib/libc/musl/src/math/x32/fmodl.s b/lib/libc/musl/src/math/x32/fmodl.s
deleted file mode 100644
index c3f790c9bf..0000000000
--- a/lib/libc/musl/src/math/x32/fmodl.s
+++ /dev/null
@@ -1,11 +0,0 @@
-.global fmodl
-.type fmodl,@function
-fmodl:
-	fldt 24(%esp)
-	fldt 8(%esp)
-1:	fprem
-	fnstsw %ax
-	testb $4,%ah
-	jnz 1b
-	fstp %st(1)
-	ret
diff --git a/lib/libc/musl/src/math/x86_64/fmodl.c b/lib/libc/musl/src/math/x86_64/fmodl.c
deleted file mode 100644
index 3daeab0600..0000000000
--- a/lib/libc/musl/src/math/x86_64/fmodl.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <math.h>
-
-long double fmodl(long double x, long double y)
-{
-	unsigned short fpsr;
-	do __asm__ ("fprem; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y));
-	while (fpsr & 0x400);
-	return x;
-}
diff --git a/src/libs/mingw.zig b/src/libs/mingw.zig
index 62e451acfb..f36fde251e 100644
--- a/src/libs/mingw.zig
+++ b/src/libs/mingw.zig
@@ -966,7 +966,6 @@ const mingw32_x86_src = [_][]const u8{
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "exp2l.S",
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "expl.c",
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "expm1l.c",
-    "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "fmodl.c",
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "fucom.c",
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "ilogbl.S",
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "internal_logl.S",
@@ -1005,7 +1004,6 @@ const mingw32_x86_32_src = [_][]const u8{
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "asinf.c",
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "atan2f.c",
     "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "atanf.c",
-    "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "fmodf.c",
 };
 
 const mingw32_arm_src = [_][]const u8{
diff --git a/src/libs/musl.zig b/src/libs/musl.zig
index ebd2727eb8..1aa4c84136 100644
--- a/src/libs/musl.zig
+++ b/src/libs/musl.zig
@@ -924,9 +924,6 @@ const src_files = [_][]const u8{
     "musl/src/math/i386/exp_ld.s",
     "musl/src/math/i386/expl.s",
     "musl/src/math/i386/expm1l.s",
-    "musl/src/math/i386/fmod.c",
-    "musl/src/math/i386/fmodf.c",
-    "musl/src/math/i386/fmodl.c",
     "musl/src/math/i386/hypotf.s",
     "musl/src/math/i386/hypot.s",
     "musl/src/math/i386/__invtrigl.s",
@@ -1147,7 +1144,6 @@ const src_files = [_][]const u8{
     "musl/src/math/x32/expm1l.s",
     "musl/src/math/x32/fma.c",
     "musl/src/math/x32/fmaf.c",
-    "musl/src/math/x32/fmodl.s",
     "musl/src/math/x32/__invtrigl.s",
     "musl/src/math/x32/llrintf.s",
     "musl/src/math/x32/llrintl.s",
@@ -1173,7 +1169,6 @@ const src_files = [_][]const u8{
     "musl/src/math/x86_64/expm1l.s",
     "musl/src/math/x86_64/fma.c",
     "musl/src/math/x86_64/fmaf.c",
-    "musl/src/math/x86_64/fmodl.c",
     "musl/src/math/x86_64/__invtrigl.s",
     "musl/src/math/x86_64/llrint.c",
     "musl/src/math/x86_64/llrintf.c",