[CMAKE]
[reactos.git] / gcc.cmake
index 2f5225c..f35d639 100644 (file)
--- a/gcc.cmake
+++ b/gcc.cmake
@@ -33,6 +33,32 @@ add_definitions(-Wall -Wno-char-subscripts -Wpointer-arith -Wno-multichar -Wno-e
 add_definitions(-Os -fno-strict-aliasing -ftracer -momit-leaf-frame-pointer -mpreferred-stack-boundary=2 -fno-set-stack-executable -fno-optimize-sibling-calls)
 
 # Macros
+MACRO(_PCH_GET_COMPILE_FLAGS _target_name _out_compile_flags _header_filename)
+    # Add the precompiled header to the build
+    get_filename_component(FILE ${_header_filename} NAME)
+    set(_gch_filename "${_target_name}_${FILE}.gch")
+    list(APPEND ${_out_compile_flags} -c ${_header_filename} -o ${_gch_filename})
+
+    # This gets us our includes
+    get_directory_property(DIRINC INCLUDE_DIRECTORIES)
+    foreach(item ${DIRINC})
+        list(APPEND ${_out_compile_flags} -I${item})
+    endforeach(item) 
+
+    # This is a particular bit of undocumented/hacky magic I'm quite proud of
+    get_directory_property(_compiler_flags DEFINITIONS)
+    string(REPLACE "\ " "\t" _compiler_flags ${_compiler_flags})
+    list(APPEND ${_out_compile_flags} ${_compiler_flags})
+
+    # This gets any specific definitions that were added with set-target-property
+    get_target_property(_target_defs ${_target_name} COMPILE_DEFINITIONS)
+    if (_target_defs)
+        foreach(item ${_target_defs})
+            list(APPEND ${_out_compile_flags} -D${item})
+        endforeach(item)
+    endif()
+ENDMACRO(_PCH_GET_COMPILE_FLAGS) 
+
 MACRO(add_pch _target_name _header_filename _src_list)
     get_filename_component(FILE ${_header_filename} NAME)
     set(_gch_filename "${_target_name}_${FILE}.gch")