[CMake] file property SWIG_FLAGS results in NOTFOUND

[Axel Wachtler]

Hallo Anton, Hallo Brad,

thanks for your help to my questions. Just for documentation
I want to post the fixes I made, to solve the issues - maybe
somebody will find it helpfull.

In the bug tracker, I created to fix (1) the entries 1729 and 1730
and for (2) the entry 1731.

The patch attached to this mail should be applied to a local copy
of UseSWIG.cmake.

cp /<where_cmake_resides>/share/CMake/Modules/UseSWIG.cmake .
patch -p0 < UseSWIG.patch

It comments out the SWIG_FLAGS-property and the "-c" line (1) and
uses a SWIG_MODULE_${name}_EXTRA_DEPS variable in the custom command 
(2), which generates the swig command line.
With SWIG_MODULE_${name}_EXTRA_DEPS a code generator can be triggered.

Best Regards

Axel


> Please report this as a bug here:
>
> http://www.cmake.org/Bug
>
> > (2)
> > The second question is, I want to add a custom file generator
> > before swig is called (a Python script, which generates
> > another swig module),  how I can do this? I could not find a
> > valid target  name, to use in  ADD_CUSTOM_(TARGET|COMMAND).
>
>
> You don't actually need a target name.  That is the old custom command
> format.  Just specify as an OUTPUT a file that is used as an input by
> the swig macro.  The generation rule should automatically be put in the
> right place.
>
> -Brad


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Axel Wachtler
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-------------- next part --------------
--- UseSWIG.cmake	Sat Apr  2 11:33:30 2005
+++ MyUseSWIG.cmake	Sat Apr  2 11:33:30 2005
@@ -64,7 +64,7 @@
   GET_FILENAME_COMPONENT(swig_source_file_name_we "${infile}" NAME_WE)
   GET_SOURCE_FILE_PROPERTY(swig_source_file_generated ${infile} GENERATED)
   GET_SOURCE_FILE_PROPERTY(swig_source_file_cplusplus ${infile} CPLUSPLUS)
-  GET_SOURCE_FILE_PROPERTY(swig_source_file_flags ${infile} SWIG_FLAGS)
+#  GET_SOURCE_FILE_PROPERTY(swig_source_file_flags ${infile} SWIG_FLAGS)
   SET(swig_source_file_fullname "${infile}")
   IF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_SOURCE_DIR}")
     STRING(REGEX REPLACE 
@@ -122,8 +122,8 @@
   SET(swig_special_flags)
   IF(swig_source_file_cplusplus)
     SET(swig_special_flags ${swig_special_flags} "-c++")
-  ELSE(swig_source_file_cplusplus)
-    SET(swig_special_flags ${swig_special_flags} "-c")
+#  ELSE(swig_source_file_cplusplus)
+#    SET(swig_special_flags ${swig_special_flags} "-c")
   ENDIF(swig_source_file_cplusplus)
   SET(swig_extra_flags)
   IF(SWIG_MODULE_${name}_EXTRA_FLAGS)
@@ -140,6 +140,7 @@
     ${swig_include_dirs}
     -o "${swig_generated_file_fullname}"
     "${swig_source_file_fullname}"
+    DEPENDS ${SWIG_MODULE_${name}_EXTRA_DEPS}
     MAIN_DEPENDENCY "${swig_source_file_fullname}"
     COMMENT "Swig source") 
   SET_SOURCE_FILES_PROPERTIES("${swig_generated_file_fullname}"