new macro MACRO_APPEND_IF(var condition value1..valuen)

can be used to simplify code:
macro_append_if(mySrcs SOMELIB_FOUND file1.cpp file2.cpp)

instead of 

if(SOMELIB_FOUND)
   set(mySrcs file1.cpp file2.cpp)
endif(SOMELIB_FOUND)


Alex


svn path=/trunk/KDE/kdelibs/; revision=749077

1 files changed, 22 insertions, 0 deletions

diff --git a/modules/MacroAppendIf.cmake b/modules/MacroAppendIf.cmake
new file mode 100644
index 00000000..62949de2
--- /dev/null
+++ b/modules/MacroAppendIf.cmake
@@ -0,0 +1,22 @@
+# MACRO_APPEND_IF( VAR CONDITION VALUE1...VALUEN )
+# This convenience macro appends the values VALUE1 up to VALUEN to the list
+# given in VAR, but only if the variable CONDITION is TRUE:
+#
+# usage example:
+# IF(SOMELIB_FOUND)
+#   SET(my_sources ${my_sources} somefile.c someotherfile.c)
+# ENDIF(SOMELIB_FOUND)
+#
+# becomes:
+# MACRO_APPEND_IF(my_sources SOMELIB_FOUND somefile.c someotherfile.c)
+
+# Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+macro(macro_append_if _list _cond )
+  if(${_cond})
+    list(APPEND ${_list} ${ARGN})
+  endif(${_cond})
+endmacro(macro_append_if _list _cond )