[DOC] Added another SMPI_PRETEND_CC warning

diff --git a/doc/doxygen/module-smpi.doc b/doc/doxygen/module-smpi.doc
index 52f1353..9ce6424 100644 (file)
--- a/doc/doxygen/module-smpi.doc
+++ b/doc/doxygen/module-smpi.doc
@@ -49,10 +49,10 @@ go.
 
 For that, simply use <tt>smpicc</tt> as a compiler just
 like you use mpicc with other MPI implementations. This script
-replaces your usual compiler (gcc, clang, whatever) and adds the right
+still calls your default compiler (gcc, clang, ...) and adds the right
 compilation flags along the way.
 
-This may badly interact with some building infrastructure. Your
+Alas, some building infrastructures cannot cope with that and your
 <tt>./configure</tt> may fail, reporting that the compiler is not
 functional. If this happens, define the <tt>SMPI_PRETEND_CC</tt>
 environment variable before running the configuration. Do not define
@@ -63,6 +63,12 @@ SMPI_PRETEND_CC=1 ./configure # here come the configure parameters
 make
 @endverbatim
 
+\warn
+  Again, make sure that SMPI_PRETEND_CC is not set when you actually 
+  compile your application. It is just a work-around for some configure-scripts
+  and replaces some internals by "return 0;". Your simulation will not
+  work with this variable set!
+
 @subsection SMPI_use_exec Executing your code on the simulator
 
 Use the <tt>smpirun</tt> script as follows for that:
@@ -544,4 +550,4 @@ TBD
 */
 
 
-/** @example include/smpi/smpi.h */
\ No newline at end of file
+/** @example include/smpi/smpi.h */