[LLVMbugs] [Bug 5647] New: LLVM does not build with warnings enabled

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=5647

           Summary: LLVM does not build with warnings enabled
           Product: Build scripts
           Version: trunk
          Platform: PC
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: cmake
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: grosser at fim.uni-passau.de
                CC: llvmbugs at cs.uiuc.edu


I just tried to fix some warnings and realized that llvm is build without any
warning flags using cmake, whereas a autoconf build adds these warning flags
automatically.

"-Wall -W -Wno-unused-parameter -Wwrite-strings"

Here a verbose output for a cmake Debug build:

% gmake VERBOSE=1
/usr/local/bin/cmake -H/home/Tobi/Projekte/llvm/git
-B/home/Tobi/Projekte/llvm/build --check-build-system CMakeFiles/Makefile.cmake
0
/usr/local/bin/cmake -E cmake_progress_start
/home/Tobi/Projekte/llvm/build/CMakeFiles
/home/Tobi/Projekte/llvm/build/CMakeFiles/progress.make
gmake -f CMakeFiles/Makefile2 all
gmake[1]: Entering directory `/usr/home/Tobi/Projekte/llvm/build'
gmake -f lib/System/CMakeFiles/LLVMSystem.dir/build.make
lib/System/CMakeFiles/LLVMSystem.dir/depend
gmake[2]: Entering directory `/usr/home/Tobi/Projekte/llvm/build'
cd /home/Tobi/Projekte/llvm/build && /usr/local/bin/cmake -E cmake_depends
"Unix Makefiles" /home/Tobi/Projekte/llvm/git
/home/Tobi/Projekte/llvm/git/lib/System /home/Tobi/Projekte/llvm/build
/home/Tobi/Projekte/llvm/build/lib/System
/home/Tobi/Projekte/llvm/build/lib/System/CMakeFiles/LLVMSystem.dir/DependInfo.cmake
--color=
gmake[2]: Leaving directory `/usr/home/Tobi/Projekte/llvm/build'
gmake -f lib/System/CMakeFiles/LLVMSystem.dir/build.make
lib/System/CMakeFiles/LLVMSystem.dir/build
gmake[2]: Entering directory `/usr/home/Tobi/Projekte/llvm/build'
/usr/local/bin/cmake -E cmake_progress_report
/home/Tobi/Projekte/llvm/build/CMakeFiles 
[  0%] Building CXX object lib/System/CMakeFiles/LLVMSystem.dir/Alarm.cpp.o
cd /home/Tobi/Projekte/llvm/build/lib/System && /usr/local/bin/g++44   -D_DEBUG
-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -g
-I/home/Tobi/Projekte/llvm/build/include -I/home/Tobi/Projekte/llvm/git/include
  -o CMakeFiles/LLVMSystem.dir/Alarm.cpp.o -c
/home/Tobi/Projekte/llvm/git/lib/System/Alarm.cpp
/usr/local/bin/cmake -E cmake_progress_report
/home/Tobi/Projekte/llvm/build/CMakeFiles 
[  0%] Building CXX object lib/System/CMakeFiles/LLVMSystem.dir/Atomic.cpp.o
cd /home/Tobi/Projekte/llvm/build/lib/System && /usr/local/bin/g++44   -D_DEBUG
-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -g
-I/home/Tobi/Projekte/llvm/build/include -I/home/Tobi/Projekte/llvm/git/include
  -o CMakeFiles/LLVMSystem.dir/Atomic.cpp.o -c
/home/Tobi/Projekte/llvm/git/lib/System/Atomic.cpp
/usr/local/bin/cmake -E cmake_progress_report
/home/Tobi/Projekte/llvm/build/CMakeFiles


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