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Qt4Macros: Added support for generated resource files 

Using the QT4_ADD_RESOURCES() macro required the resource file to exist
already for dependency scanning.  This prevented the use of resource
files that are generated by cmake because it needs the file before
resolving the dependency.  This patch adds support for generated
resource files by not scanning the resource file for dependencies if it
doesn't exist yet.  The add_custom_command() to generate the resource
file should add the dependencies on the files used by the resource file.
This commit is contained in:
Tobias Bieniek 2012-05-29 17:45:03 +02:00 committed by Brad King
parent b639549c67
commit 9ce67d3001
1 changed files with 24 additions and 16 deletions
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40
Modules/Qt4Macros.cmake
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@ -182,23 +182,31 @@ MACRO (QT4_ADD_RESOURCES outfiles )
GET_FILENAME_COMPONENT(infile ${it} ABSOLUTE)
GET_FILENAME_COMPONENT(rc_path ${infile} PATH)
SET(outfile ${CMAKE_CURRENT_BINARY_DIR}/qrc_${outfilename}.cxx)
# parse file for dependencies
# all files are absolute paths or relative to the location of the qrc file
FILE(READ "${infile}" _RC_FILE_CONTENTS)
STRING(REGEX MATCHALL "<file[^<]+" _RC_FILES "${_RC_FILE_CONTENTS}")
SET(_RC_DEPENDS)
FOREACH(_RC_FILE ${_RC_FILES})
STRING(REGEX REPLACE "^<file[^>]*>" "" _RC_FILE "${_RC_FILE}")
IF(NOT IS_ABSOLUTE "${_RC_FILE}")
SET(_RC_FILE "${rc_path}/${_RC_FILE}")
ENDIF(NOT IS_ABSOLUTE "${_RC_FILE}")
SET(_RC_DEPENDS ${_RC_DEPENDS} "${_RC_FILE}")
ENDFOREACH(_RC_FILE)
# Since this cmake macro is doing the dependency scanning for these files,
# let's make a configured file and add it as a dependency so cmake is run
# again when dependencies need to be recomputed.
QT4_MAKE_OUTPUT_FILE("${infile}" "" "qrc.depends" out_depends)
CONFIGURE_FILE("${infile}" "${out_depends}" COPY_ONLY)
IF(EXISTS "${infile}")
# parse file for dependencies
# all files are absolute paths or relative to the location of the qrc file
FILE(READ "${infile}" _RC_FILE_CONTENTS)
STRING(REGEX MATCHALL "<file[^<]+" _RC_FILES "${_RC_FILE_CONTENTS}")
FOREACH(_RC_FILE ${_RC_FILES})
STRING(REGEX REPLACE "^<file[^>]*>" "" _RC_FILE "${_RC_FILE}")
IF(NOT IS_ABSOLUTE "${_RC_FILE}")
SET(_RC_FILE "${rc_path}/${_RC_FILE}")
ENDIF(NOT IS_ABSOLUTE "${_RC_FILE}")
SET(_RC_DEPENDS ${_RC_DEPENDS} "${_RC_FILE}")
ENDFOREACH(_RC_FILE)
# Since this cmake macro is doing the dependency scanning for these files,
# let's make a configured file and add it as a dependency so cmake is run
# again when dependencies need to be recomputed.
QT4_MAKE_OUTPUT_FILE("${infile}" "" "qrc.depends" out_depends)
CONFIGURE_FILE("${infile}" "${out_depends}" COPY_ONLY)
ELSE(EXISTS "${infile}")
# The .qrc file does not exist (yet). Let's add a dependency and hope
# that it will be generated later
SET(out_depends)
ENDIF(EXISTS "${infile}")
ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
COMMAND ${QT_RCC_EXECUTABLE}
ARGS ${rcc_options} -name ${outfilename} -o ${outfile} ${infile}