diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am
index 766aee6..94a480c 100644
--- a/mingw-w64-crt/Makefile.am
+++ b/mingw-w64-crt/Makefile.am
@@ -2927,7 +2927,7 @@
 		%/libapi-ms-win-core-processthreads-l1-1-2_windowsapp.a \
 		%/libapi-ms-win-core-processthreads-l1-1-3_windowsapp.a \
 		%/libapi-ms-win-core-processtopology-l1-1-0_windowsapp.a \
-		%/libapi-ms-win-core-processtopology-obsolete-l1-1-0.a \
+		%/libapi-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.a \
 		%/libapi-ms-win-core-profile-l1-1-0.a \
 		%/libapi-ms-win-core-psapi-ansi-l1-1-0.a \
 		%/libapi-ms-win-core-psapi-l1-1-0_windowsapp.a \
diff --git a/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-0.def b/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-0.def
index ab09b2e..6f54d0b 100644
--- a/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-0.def
+++ b/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-0.def
@@ -2,6 +2,7 @@
 
 EXPORTS
 
+GetActiveProcessorCount
 GetProcessAffinityMask
 GetProcessIoCounters
 SetProcessAffinityMask
diff --git a/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.def b/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.def
new file mode 100644
index 0000000..ab09b2e
--- /dev/null
+++ b/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.def
@@ -0,0 +1,8 @@
+LIBRARY api-ms-win-core-processtopology-obsolete-l1-1-0
+
+EXPORTS
+
+GetProcessAffinityMask
+GetProcessIoCounters
+SetProcessAffinityMask
+SetThreadAffinityMask
diff --git a/mingw-w64-crt/lib-common/windowsapp.mri b/mingw-w64-crt/lib-common/windowsapp.mri
index 575fdbf..e9f8154 100644
--- a/mingw-w64-crt/lib-common/windowsapp.mri
+++ b/mingw-w64-crt/lib-common/windowsapp.mri
@@ -95,7 +95,7 @@
 ADDLIB libapi-ms-win-core-processthreads-l1-1-2_windowsapp.a
 ADDLIB libapi-ms-win-core-processthreads-l1-1-3_windowsapp.a
 ADDLIB libapi-ms-win-core-processtopology-l1-1-0_windowsapp.a
-ADDLIB libapi-ms-win-core-processtopology-obsolete-l1-1-0.a
+ADDLIB libapi-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.a
 ADDLIB libapi-ms-win-core-profile-l1-1-0.a
 ADDLIB libapi-ms-win-core-psapi-ansi-l1-1-0.a
 ADDLIB libapi-ms-win-core-psapi-l1-1-0_windowsapp.a
diff --git a/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-0.def b/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-0.def
index 7b60bf7..c995351 100644
--- a/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-0.def
+++ b/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-0.def
@@ -2,6 +2,7 @@
 
 EXPORTS
 
+GetActiveProcessorCount@4
 GetProcessAffinityMask@12
 GetProcessIoCounters@8
 SetProcessAffinityMask@8
diff --git a/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.def b/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.def
new file mode 100644
index 0000000..7b60bf7
--- /dev/null
+++ b/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-0_windowsapp.def
@@ -0,0 +1,8 @@
+LIBRARY api-ms-win-core-processtopology-obsolete-l1-1-0
+
+EXPORTS
+
+GetProcessAffinityMask@12
+GetProcessIoCounters@8
+SetProcessAffinityMask@8
+SetThreadAffinityMask@8