xmake-repo/packages/l/libtiff/patches/4.7.0/cmath.patch

diff --git a/cmake/FindCMath.cmake b/cmake/FindCMath.cmake
index ad92218..d3dc089 100644
--- a/cmake/FindCMath.cmake
+++ b/cmake/FindCMath.cmake
@@ -55,18 +55,11 @@ if(CMath_FOUND)
         set(CMath_INCLUDE_DIRS)
     endif()
     if(NOT CMath_LIBRARIES)
+        if(NOT CMath_LIBRARY)
+            unset(CMath_LIBRARY)
+        endif()
         if (CMath_LIBRARY)
             set(CMath_LIBRARIES ${CMath_LIBRARY})
         endif()
     endif()
-
-    if(NOT TARGET CMath::CMath)
-        if(CMath_LIBRARIES)
-            add_library(CMath::CMath UNKNOWN IMPORTED)
-            set_target_properties(CMath::CMath PROPERTIES
-                  IMPORTED_LOCATION "${CMath_LIBRARY}")
-        else()
-            add_library(CMath::CMath INTERFACE IMPORTED)
-        endif()
-    endif()
 endif()
diff --git a/contrib/dbs/CMakeLists.txt b/contrib/dbs/CMakeLists.txt
index 74b2a02..2ed96ac 100644
--- a/contrib/dbs/CMakeLists.txt
+++ b/contrib/dbs/CMakeLists.txt
@@ -26,13 +26,19 @@ add_executable(tiff-bi tiff-bi.c)
 target_link_libraries(tiff-bi tiff tiff_port)
 
 add_executable(tiff-grayscale tiff-grayscale.c)
-target_link_libraries(tiff-grayscale tiff tiff_port CMath::CMath)
+target_link_libraries(tiff-grayscale tiff tiff_port)
+if(CMath_LIBRARIES)
+    target_link_libraries(tiff-grayscale ${CMath_LIBRARIES})
+endif()
 
 add_executable(tiff-palette tiff-palette.c)
 target_link_libraries(tiff-palette tiff tiff_port)
 
 add_executable(tiff-rgb tiff-rgb.c)
-target_link_libraries(tiff-rgb tiff tiff_port CMath::CMath)
+target_link_libraries(tiff-rgb tiff tiff_port)
+if(CMath_LIBRARIES)
+    target_link_libraries(tiff-rgb ${CMath_LIBRARIES})
+endif()
 
 if(WEBP_SUPPORT AND EMSCRIPTEN)
   # Emscripten is pretty finnicky about linker flags.
diff --git a/libtiff/CMakeLists.txt b/libtiff/CMakeLists.txt
index a8aa0c3..25914c9 100644
--- a/libtiff/CMakeLists.txt
+++ b/libtiff/CMakeLists.txt
@@ -184,9 +184,9 @@ if(WEBP_SUPPORT)
   target_link_libraries(tiff PRIVATE WebP::webp)
   string(APPEND tiff_requires_private " libwebp")
 endif()
-if(CMath_LIBRARY)
-  target_link_libraries(tiff PRIVATE CMath::CMath)
-  list(APPEND tiff_libs_private_list "${CMath_LIBRARY}")
+if(CMath_LIBRARIES)
+  target_link_libraries(tiff PRIVATE ${CMath_LIBRARIES})
+  list(APPEND tiff_libs_private_list "${CMath_LIBRARIES}")
 endif()
 
 set(tiff_libs_private_list "${tiff_libs_private_list}" PARENT_SCOPE)
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 5bf93b1..f6c4e2f 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -48,7 +48,10 @@ target_link_libraries(ppm2tiff PRIVATE tiff tiff_port)
 
 add_executable(raw2tiff ../placeholder.h)
 target_sources(raw2tiff PRIVATE raw2tiff.c ${MSVC_RESOURCE_FILE})
-target_link_libraries(raw2tiff PRIVATE tiff tiff_port CMath::CMath)
+target_link_libraries(raw2tiff PRIVATE tiff tiff_port)
+if(CMath_LIBRARIES)
+    target_link_libraries(raw2tiff PRIVATE ${CMath_LIBRARIES})
+endif()
 
 add_executable(rgb2ycbcr ../placeholder.h)
 target_sources(rgb2ycbcr PRIVATE rgb2ycbcr.c ${MSVC_RESOURCE_FILE})
@@ -56,7 +59,10 @@ target_link_libraries(rgb2ycbcr PRIVATE tiff tiff_port)
 
 add_executable(thumbnail ../placeholder.h)
 target_sources(thumbnail PRIVATE thumbnail.c ${MSVC_RESOURCE_FILE})
-target_link_libraries(thumbnail PRIVATE tiff tiff_port CMath::CMath)
+target_link_libraries(thumbnail PRIVATE tiff tiff_port)
+if(CMath_LIBRARIES)
+    target_link_libraries(thumbnail PRIVATE ${CMath_LIBRARIES})
+endif()
 
 add_executable(tiff2bw ../placeholder.h)
 target_sources(tiff2bw PRIVATE tiff2bw.c ${MSVC_RESOURCE_FILE})
@@ -68,7 +74,10 @@ target_link_libraries(tiff2pdf PRIVATE tiff tiff_port)
 
 add_executable(tiff2ps ../placeholder.h)
 target_sources(tiff2ps PRIVATE tiff2ps.c ${MSVC_RESOURCE_FILE})
-target_link_libraries(tiff2ps PRIVATE tiff tiff_port CMath::CMath)
+target_link_libraries(tiff2ps PRIVATE tiff tiff_port)
+if(CMath_LIBRARIES)
+    target_link_libraries(tiff2ps PRIVATE ${CMath_LIBRARIES})
+endif()
 
 add_executable(tiff2rgba ../placeholder.h)
 target_sources(tiff2rgba PRIVATE tiff2rgba.c ${MSVC_RESOURCE_FILE})
@@ -84,7 +93,10 @@ target_link_libraries(tiffcp PRIVATE tiff tiff_port)
 
 add_executable(tiffcrop ../placeholder.h)
 target_sources(tiffcrop PRIVATE tiffcrop.c ${MSVC_RESOURCE_FILE})
-target_link_libraries(tiffcrop PRIVATE tiff tiff_port CMath::CMath)
+target_link_libraries(tiffcrop PRIVATE tiff tiff_port)
+if(CMath_LIBRARIES)
+    target_link_libraries(tiffcrop PRIVATE ${CMath_LIBRARIES})
+endif()
 
 add_executable(tiffdither ../placeholder.h)
 target_sources(tiffdither PRIVATE tiffdither.c ${MSVC_RESOURCE_FILE})