jiridanek commented on a change in pull request #1514:
URL: https://github.com/apache/qpid-dispatch/pull/1514#discussion_r804152531



##########
File path: tests/c_unittests/CMakeLists.txt
##########
@@ -20,7 +20,7 @@
 # -fno-inline: just to be extra sure, no particular reason so far
 # -fno-builtin: GCC would optimize e.g. abs() and we would not be able to stub
 # -fno-stack-protector: 
https://stackoverflow.com/questions/12201625/disable-using-sprintf-chk
-# -D_FORTIFY_SOURCE=0: for Ubuntu with -O1+, 
https://stackoverflow.com/questions/34907503/gcc-fread-chk-warn-warning
+# -U_FORTIFY_SOURCE: for Ubuntu with -O1+, 
https://stackoverflow.com/questions/34907503/gcc-fread-chk-warn-warning
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_STANDARD_FLAGS} -fno-inline 
-fno-builtin -fno-stack-protector -U_FORTIFY_SOURCE")

Review comment:
       while I think that setting `_FORTIFY_SOURCE` to disable tests is silly 
and such ideas should not be encouraged, you have a point saying that 
undefining options the way it's there now is not a good practice
   
   thanks




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