Reduce libc_errno usage in fmod smoke tests.

Author: vonosmas

libc/test/src/math/smoke/CMakeLists.txt

@@ -4438,8 +4438,8 @@ add_fp_unittest(
   HDRS
     FModTest.h
   DEPENDS
+    libc.hdr.errno_macros
     libc.hdr.fenv_macros
-    libc.src.errno.errno
     libc.src.math.fmodf
     libc.src.__support.FPUtil.fenv_impl
   # FIXME: Currently fails on the GPU build.
@@ -4455,8 +4455,8 @@ add_fp_unittest(
   HDRS
     FModTest.h
   DEPENDS
+    libc.hdr.errno_macros
     libc.hdr.fenv_macros
-    libc.src.errno.errno
     libc.src.math.fmod
     libc.src.__support.FPUtil.fenv_impl
   # FIXME: Currently fails on the GPU build.
@@ -4472,8 +4472,8 @@ add_fp_unittest(
   HDRS
     FModTest.h
   DEPENDS
+    libc.hdr.errno_macros
     libc.hdr.fenv_macros
-    libc.src.errno.errno
     libc.src.math.fmodl
     libc.src.__support.FPUtil.fenv_impl
   # FIXME: Currently fails on the GPU build.
@@ -4489,8 +4489,8 @@ add_fp_unittest(
   HDRS
     FModTest.h
   DEPENDS
+    libc.hdr.errno_macros
     libc.hdr.fenv_macros
-    libc.src.errno.errno
     libc.src.math.fmodf16
     libc.src.__support.FPUtil.fenv_impl
   # FIXME: Currently fails on the GPU build.
@@ -4506,8 +4506,8 @@ add_fp_unittest(
   HDRS
     FModTest.h
   DEPENDS
+    libc.hdr.errno_macros
     libc.hdr.fenv_macros
-    libc.src.errno.errno
     libc.src.math.fmodf128
     libc.src.__support.FPUtil.fenv_impl
   # FIXME: Currently fails on the GPU build.
@@ -4523,8 +4523,8 @@ add_fp_unittest(
   HDRS
     FModTest.h
   DEPENDS
+    libc.hdr.errno_macros
     libc.hdr.fenv_macros
-    libc.src.errno.errno
     libc.src.math.fmodbf16
     libc.src.__support.FPUtil.bfloat16
     libc.src.__support.FPUtil.fenv_impl

libc/test/src/math/smoke/FModTest.h

@@ -9,8 +9,8 @@
 #ifndef LLVM_LIBC_TEST_SRC_MATH_FMODTEST_H
 #define LLVM_LIBC_TEST_SRC_MATH_FMODTEST_H
 
+#include "hdr/errno_macros.h"
 #include "src/__support/FPUtil/FEnvImpl.h"
-#include "src/__support/libc_errno.h"
 #include "test/UnitTest/FEnvSafeTest.h"
 #include "test/UnitTest/FPMatcher.h"
 #include "test/UnitTest/Test.h"