diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am
index d94461c..9f8149e 100644
--- a/mingw-w64-crt/Makefile.am
+++ b/mingw-w64-crt/Makefile.am
@@ -2767,7 +2767,7 @@
 		%/libapi-ms-win-core-registry-l1-1-2.a \
 		%/libapi-ms-win-core-registry-l2-1-0.a \
 		%/libapi-ms-win-core-rtlsupport-l1-1-0.a \
-		%/libapi-ms-win-core-rtlsupport-l1-2-0.a \
+		%/libapi-ms-win-core-rtlsupport-l1-2-0_windowsapp.a \
 		%/libapi-ms-win-core-shutdown-l1-1-0_windowsapp.a \
 		%/libapi-ms-win-core-slapi-l1-1-0.a \
 		%/libapi-ms-win-core-string-l1-1-0.a \
diff --git a/mingw-w64-crt/lib-common/api-ms-win-core-rtlsupport-l1-2-0.def b/mingw-w64-crt/lib-common/api-ms-win-core-rtlsupport-l1-2-0.def
index 89e8d2d..2c4b211 100644
--- a/mingw-w64-crt/lib-common/api-ms-win-core-rtlsupport-l1-2-0.def
+++ b/mingw-w64-crt/lib-common/api-ms-win-core-rtlsupport-l1-2-0.def
@@ -3,11 +3,14 @@
 EXPORTS
 
 RtlAddFunctionTable
+RtlAddGrowableFunctionTable
 RtlCaptureContext
 RtlCaptureStackBackTrace
 RtlCompareMemory
 RtlDeleteFunctionTable
+RtlDeleteGrowableFunctionTable
 RtlInstallFunctionTableCallback
+RtlGrowFunctionTable
 RtlLookupFunctionEntry
 RtlPcToFileHeader
 RtlRaiseException
diff --git a/mingw-w64-crt/lib-common/api-ms-win-core-rtlsupport-l1-2-0_windowsapp.def b/mingw-w64-crt/lib-common/api-ms-win-core-rtlsupport-l1-2-0_windowsapp.def
new file mode 100644
index 0000000..89e8d2d
--- /dev/null
+++ b/mingw-w64-crt/lib-common/api-ms-win-core-rtlsupport-l1-2-0_windowsapp.def
@@ -0,0 +1,17 @@
+LIBRARY api-ms-win-core-rtlsupport-l1-2-0
+
+EXPORTS
+
+RtlAddFunctionTable
+RtlCaptureContext
+RtlCaptureStackBackTrace
+RtlCompareMemory
+RtlDeleteFunctionTable
+RtlInstallFunctionTableCallback
+RtlLookupFunctionEntry
+RtlPcToFileHeader
+RtlRaiseException
+RtlRestoreContext
+RtlUnwind
+RtlUnwindEx
+RtlVirtualUnwind
diff --git a/mingw-w64-crt/lib-common/windowsapp.mri b/mingw-w64-crt/lib-common/windowsapp.mri
index 4241ff3..061bc83 100644
--- a/mingw-w64-crt/lib-common/windowsapp.mri
+++ b/mingw-w64-crt/lib-common/windowsapp.mri
@@ -109,7 +109,7 @@
 ADDLIB libapi-ms-win-core-registry-l1-1-2.a
 ADDLIB libapi-ms-win-core-registry-l2-1-0.a
 ADDLIB libapi-ms-win-core-rtlsupport-l1-1-0.a
-ADDLIB libapi-ms-win-core-rtlsupport-l1-2-0.a
+ADDLIB libapi-ms-win-core-rtlsupport-l1-2-0_windowsapp.a
 ADDLIB libapi-ms-win-core-shutdown-l1-1-0_windowsapp.a
 ADDLIB libapi-ms-win-core-slapi-l1-1-0.a
 ADDLIB libapi-ms-win-core-string-l1-1-0.a
diff --git a/mingw-w64-crt/lib32/api-ms-win-core-rtlsupport-l1-2-0_windowsapp.def b/mingw-w64-crt/lib32/api-ms-win-core-rtlsupport-l1-2-0_windowsapp.def
new file mode 100644
index 0000000..c3d634d
--- /dev/null
+++ b/mingw-w64-crt/lib32/api-ms-win-core-rtlsupport-l1-2-0_windowsapp.def
@@ -0,0 +1,13 @@
+LIBRARY api-ms-win-core-rtlsupport-l1-2-0
+
+EXPORTS
+
+RtlCaptureContext@4
+RtlCaptureStackBackTrace@16
+RtlCompareMemory@12
+RtlLookupFunctionEntry
+RtlPcToFileHeader@8
+RtlRaiseException@4
+RtlUnwind@16
+RtlUnwindEx
+RtlVirtualUnwind