diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -133,18 +133,17 @@
 check_library_exists(execinfo backtrace "" COMPILER_RT_HAS_LIBEXECINFO)
 
 # Look for terminfo library, used in unittests that depend on LLVMSupport.
-if(LLVM_ENABLE_TERMINFO STREQUAL FORCE_ON)
-  set(MAYBE_REQUIRED REQUIRED)
-else()
-  set(MAYBE_REQUIRED)
-endif()
 if(LLVM_ENABLE_TERMINFO)
-  find_library(COMPILER_RT_TERMINFO_LIB NAMES terminfo tinfo curses ncurses ncursesw ${MAYBE_REQUIRED})
-endif()
-if(COMPILER_RT_TERMINFO_LIB)
-  set(LLVM_ENABLE_TERMINFO 1)
-else()
-  set(LLVM_ENABLE_TERMINFO 0)
+  foreach(library terminfo tinfo curses ncurses ncursesw)
+    string(TOUPPER ${library} library_suffix)
+    check_library_exists(
+      ${library} setupterm "" COMPILER_RT_HAS_TERMINFO_${library_suffix})
+    if(COMPILER_RT_HAS_TERMINFO_${library_suffix})
+      set(COMPILER_RT_HAS_TERMINFO TRUE)
+      set(COMPILER_RT_TERMINFO_LIB "${library}")
+      break()
+    endif()
+  endforeach()
 endif()
 
 if (ANDROID AND COMPILER_RT_HAS_LIBDL)
diff --git a/compiler-rt/lib/xray/tests/CMakeLists.txt b/compiler-rt/lib/xray/tests/CMakeLists.txt
--- a/compiler-rt/lib/xray/tests/CMakeLists.txt
+++ b/compiler-rt/lib/xray/tests/CMakeLists.txt
@@ -55,7 +55,7 @@
 if (NOT APPLE)
   # Needed by LLVMSupport.
   append_list_if(
-    LLVM_ENABLE_TERMINFO
+    COMPILER_RT_HAS_TERMINFO
     -l${COMPILER_RT_TERMINFO_LIB} XRAY_UNITTEST_LINK_FLAGS)
 
   if (COMPILER_RT_STANDALONE_BUILD)
diff --git a/lldb/source/Core/CMakeLists.txt b/lldb/source/Core/CMakeLists.txt
--- a/lldb/source/Core/CMakeLists.txt
+++ b/lldb/source/Core/CMakeLists.txt
@@ -11,8 +11,8 @@
 
 if (LLDB_ENABLE_CURSES)
   list(APPEND LLDB_CURSES_LIBS ${CURSES_LIBRARIES} ${PANEL_LIBRARIES})
-  if(LLVM_ENABLE_TERMINFO)
-    list(APPEND LLDB_CURSES_LIBS ${TERMINFO_LIB})
+  if(LLVM_ENABLE_TERMINFO AND HAVE_TERMINFO)
+    list(APPEND LLDB_CURSES_LIBS ${TERMINFO_LIBS})
   endif()
   if (LLVM_BUILD_STATIC)
     list(APPEND LLDB_CURSES_LIBS gpm)
diff --git a/llvm/cmake/config-ix.cmake b/llvm/cmake/config-ix.cmake
--- a/llvm/cmake/config-ix.cmake
+++ b/llvm/cmake/config-ix.cmake
@@ -148,18 +148,19 @@
     else()
       set(HAVE_LIBEDIT 0)
     endif()
-    if(LLVM_ENABLE_TERMINFO STREQUAL FORCE_ON)
-      set(MAYBE_REQUIRED REQUIRED)
-    else()
-      set(MAYBE_REQUIRED)
-    endif()
     if(LLVM_ENABLE_TERMINFO)
-      find_library(TERMINFO_LIB NAMES terminfo tinfo curses ncurses ncursesw ${MAYBE_REQUIRED})
-    endif()
-    if(TERMINFO_LIB)
-      set(LLVM_ENABLE_TERMINFO 1)
+      set(HAVE_TERMINFO 0)
+      foreach(library terminfo tinfo curses ncurses ncursesw)
+        string(TOUPPER ${library} library_suffix)
+        check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix})
+        if(HAVE_TERMINFO_${library_suffix})
+          set(HAVE_TERMINFO 1)
+          set(TERMINFO_LIBS "${library}")
+          break()
+        endif()
+      endforeach()
     else()
-      set(LLVM_ENABLE_TERMINFO 0)
+      set(HAVE_TERMINFO 0)
     endif()
 
     find_library(ICONV_LIBRARY_PATH NAMES iconv libiconv libiconv-2 c)
@@ -176,11 +177,7 @@
         endif()
       endif()
     endif()
-  else()
-    set(LLVM_ENABLE_TERMINFO 0)
   endif()
-else()
-  set(LLVM_ENABLE_TERMINFO 0)
 endif()
 
 if (LLVM_ENABLE_LIBXML2 STREQUAL "FORCE_ON" AND NOT LLVM_LIBXML2_ENABLED)
diff --git a/llvm/include/llvm/Config/config.h.cmake b/llvm/include/llvm/Config/config.h.cmake
--- a/llvm/include/llvm/Config/config.h.cmake
+++ b/llvm/include/llvm/Config/config.h.cmake
@@ -212,7 +212,7 @@
 #cmakedefine HAVE_SYSEXITS_H ${HAVE_SYSEXITS_H}
 
 /* Define if the setupterm() function is supported this platform. */
-#cmakedefine LLVM_ENABLE_TERMINFO ${LLVM_ENABLE_TERMINFO}
+#cmakedefine HAVE_TERMINFO ${HAVE_TERMINFO}
 
 /* Define if the xar_open() function is supported this platform. */
 #cmakedefine HAVE_LIBXAR ${HAVE_LIBXAR}
diff --git a/llvm/lib/Support/CMakeLists.txt b/llvm/lib/Support/CMakeLists.txt
--- a/llvm/lib/Support/CMakeLists.txt
+++ b/llvm/lib/Support/CMakeLists.txt
@@ -2,19 +2,6 @@
   set(imported_libs ZLIB::ZLIB)
 endif()
 
-function(get_system_libname libpath libname)
-  get_filename_component(libpath ${libpath} NAME)
-  if( CMAKE_FIND_LIBRARY_PREFIXES )
-    string(REPLACE ";" "|" PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}")
-    string(REGEX REPLACE "^(${PREFIXES})" "" libpath ${libpath})
-  endif()
-  if( CMAKE_FIND_LIBRARY_SUFFIXES )
-    string(REPLACE ";" "|" SUFFIXES "${CMAKE_FIND_LIBRARY_SUFFIXES}")
-    string(REGEX REPLACE "(${SUFFIXES})$" "" libpath ${libpath})
-  endif()
-  set(${libname} "${libpath}" PARENT_SCOPE)
-endfunction()
-
 if( MSVC OR MINGW )
   # libuuid required for FOLDERID_Profile usage in lib/Support/Windows/Path.inc.
   # advapi32 required for CryptAcquireContextW in lib/Support/Windows/Path.inc.
@@ -34,8 +21,10 @@
     STRING(REGEX REPLACE "^lib" "" Backtrace_LIBFILE ${Backtrace_LIBFILE})
     set(system_libs ${system_libs} ${Backtrace_LIBFILE})
   endif()
-  if( LLVM_ENABLE_TERMINFO )
-    set(imported_libs ${imported_libs} "${TERMINFO_LIB}")
+  if(LLVM_ENABLE_TERMINFO)
+    if(HAVE_TERMINFO)
+      set(system_libs ${system_libs} ${TERMINFO_LIBS})
+    endif()
   endif()
   if( LLVM_ENABLE_THREADS AND (HAVE_LIBATOMIC OR HAVE_CXX_LIBATOMICS64) )
     set(system_libs ${system_libs} atomic)
@@ -248,15 +237,20 @@
   if(NOT zlib_library)
     get_property(zlib_library TARGET ZLIB::ZLIB PROPERTY LOCATION)
   endif()
-  get_system_libname(${zlib_library} zlib_library)
+  get_filename_component(zlib_library ${zlib_library} NAME)
+  if(CMAKE_STATIC_LIBRARY_PREFIX AND CMAKE_STATIC_LIBRARY_SUFFIX AND
+      zlib_library MATCHES "^${CMAKE_STATIC_LIBRARY_PREFIX}.*${CMAKE_STATIC_LIBRARY_SUFFIX}$")
+    STRING(REGEX REPLACE "^${CMAKE_STATIC_LIBRARY_PREFIX}" "" zlib_library ${zlib_library})
+    STRING(REGEX REPLACE "${CMAKE_STATIC_LIBRARY_SUFFIX}$" "" zlib_library ${zlib_library})
+  endif()
+  if(CMAKE_SHARED_LIBRARY_PREFIX AND CMAKE_SHARED_LIBRARY_SUFFIX AND
+      zlib_library MATCHES "^${CMAKE_SHARED_LIBRARY_PREFIX}.*${CMAKE_SHARED_LIBRARY_SUFFIX}$")
+    STRING(REGEX REPLACE "^${CMAKE_SHARED_LIBRARY_PREFIX}" "" zlib_library ${zlib_library})
+    STRING(REGEX REPLACE "${CMAKE_SHARED_LIBRARY_SUFFIX}$" "" zlib_library ${zlib_library})
+  endif()
   set(llvm_system_libs ${llvm_system_libs} "${zlib_library}")
 endif()
 
-if(LLVM_ENABLE_TERMINFO)
-  get_system_libname(${TERMINFO_LIB} terminfo_library)
-  set(llvm_system_libs ${llvm_system_libs} "${terminfo_library}")
-endif()
-
 set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${llvm_system_libs}")
 
 if(LLVM_WITH_Z3)
diff --git a/llvm/lib/Support/Unix/Process.inc b/llvm/lib/Support/Unix/Process.inc
--- a/llvm/lib/Support/Unix/Process.inc
+++ b/llvm/lib/Support/Unix/Process.inc
@@ -313,7 +313,7 @@
   return getColumns();
 }
 
-#ifdef LLVM_ENABLE_TERMINFO
+#ifdef HAVE_TERMINFO
 // We manually declare these extern functions because finding the correct
 // headers from various terminfo, curses, or other sources is harder than
 // writing their specs down.
@@ -323,12 +323,12 @@
 extern "C" int tigetnum(char *capname);
 #endif
 
-#ifdef LLVM_ENABLE_TERMINFO
+#ifdef HAVE_TERMINFO
 static ManagedStatic<std::mutex> TermColorMutex;
 #endif
 
 static bool terminalHasColors(int fd) {
-#ifdef LLVM_ENABLE_TERMINFO
+#ifdef HAVE_TERMINFO
   // First, acquire a global lock because these C routines are thread hostile.
   std::lock_guard<std::mutex> G(*TermColorMutex);
 
diff --git a/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn b/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
--- a/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
@@ -286,9 +286,9 @@
   }
 
   if (llvm_enable_terminfo) {
-    values += [ "LLVM_ENABLE_TERMINFO=1" ]
+    values += [ "HAVE_TERMINFO=1" ]
   } else {
-    values += [ "LLVM_ENABLE_TERMINFO=" ]
+    values += [ "HAVE_TERMINFO=" ]
   }
 
   if (llvm_enable_dia_sdk) {