vcpkg/ports/tiff/FindCMath.patch

diff --git a/cmake/FindCMath.cmake b/cmake/FindCMath.cmake
index ad92218..9c8247f 100644
--- a/cmake/FindCMath.cmake
+++ b/cmake/FindCMath.cmake
@@ -31,6 +31,15 @@ include(CheckSymbolExists)
 include(CheckLibraryExists)
 
 check_symbol_exists(pow "math.h" CMath_HAVE_LIBC_POW)
+set(CMAKE_FIND_LIBRARY_SUFFIXES_SAVE "${CMAKE_FIND_LIBRARY_SUFFIXES}")
+if(VCPKG_CRT_LINKAGE STREQUAL "static")
+    list(PREPEND CMAKE_FIND_LIBRARY_SUFFIXES "${CMAKE_STATIC_LIBRARY_SUFFIX}")
+endif()
+find_library(CMath_LIBRARY_PATH m PATHS ${CMAKE_C_IMPLICIT_LINK_DIRECTORIES})
+if(CMath_LIBRARY_PATH)
+    set(CMath_LIBRARY m CACHE STRING "Math link library")
+endif()
+set(CMAKE_FIND_LIBRARY_SUFFIXES "${CMAKE_FIND_LIBRARY_SUFFIXES_SAVE}")
 find_library(CMath_LIBRARY NAMES m)
 
 if(NOT CMath_HAVE_LIBC_POW)
@@ -61,7 +70,11 @@ if(CMath_FOUND)
     endif()
 
     if(NOT TARGET CMath::CMath)
-        if(CMath_LIBRARIES)
+        if(CMath_LIBRARIES STREQUAL "m")
+            add_library(CMath::CMath INTERFACE IMPORTED)
+            set_target_properties(CMath::CMath PROPERTIES
+                  INTERFACE_LINK_LIBRARIES m)
+        elseif(CMath_LIBRARIES)
             add_library(CMath::CMath UNKNOWN IMPORTED)
             set_target_properties(CMath::CMath PROPERTIES
                   IMPORTED_LOCATION "${CMath_LIBRARY}")