Merge pull request #29054 from compnerd/defines

swiftMSVCRT: build with `-Xcc -D_USE_MATH_DEFINES`

Author: compnerd

stdlib/public/Platform/CMakeLists.txt

@@ -22,7 +22,10 @@ add_swift_target_library(swiftDarwin ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} IS_SDK_
       ${swift_platform_gyb_sources}
       Darwin.swift.gyb
 
-    SWIFT_COMPILE_FLAGS -Xfrontend -disable-objc-attr-requires-foundation-module ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS} ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
+    SWIFT_COMPILE_FLAGS
+      ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS}
+      ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
+      -Xfrontend -disable-objc-attr-requires-foundation-module
     LINK_FLAGS "${SWIFT_RUNTIME_SWIFT_LINK_FLAGS}"
     TARGET_SDKS ALL_APPLE_PLATFORMS
     INSTALL_IN_COMPONENT sdk-overlay
@@ -37,7 +40,9 @@ add_swift_target_library(swiftGlibc ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} IS_SDK_O
       ${swift_platform_gyb_sources}
       Glibc.swift.gyb
 
-    SWIFT_COMPILE_FLAGS ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS} ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
+    SWIFT_COMPILE_FLAGS
+      ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS}
+      ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
     LINK_FLAGS "${SWIFT_RUNTIME_SWIFT_LINK_FLAGS}"
     TARGET_SDKS ANDROID CYGWIN FREEBSD LINUX HAIKU
     INSTALL_IN_COMPONENT sdk-overlay
@@ -51,7 +56,10 @@ add_swift_target_library(swiftMSVCRT ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} IS_SDK_
     GYB_SOURCES
       ${swift_platform_gyb_sources}
 
-    SWIFT_COMPILE_FLAGS ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS} ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
+    SWIFT_COMPILE_FLAGS
+      ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS}
+      ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
+      -Xcc -D_USE_MATH_DEFINES
     LINK_FLAGS "${SWIFT_RUNTIME_SWIFT_LINK_FLAGS}"
     TARGET_SDKS WINDOWS
     INSTALL_IN_COMPONENT sdk-overlay)