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  1. Qt
  2. QTBUG-32530

CFLAGS picked up from environment are overridden by mkspecs

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3: Somewhat important
    • Resolution: Done
    • Affects Version/s: 4.8.5
    • Fix Version/s: 5.8.0 Alpha
    • Component/s: Build System
    • Labels:
      None
    • Commits:
      fd3e12e7a6c71a244650415a86e98d910a011ebe

      Description

      Hello, in the configure phase the build system adds -O2 after user's CFLAGS ignoring user's -O*.

      My CFLAGS:
      CFLAGS="-march=native -O2 -pipe"
      
      Output:
      x86_64-pc-linux-gnu-g++ -c -pipe -mmmx -march=native -O2 -pipe -std=c++0x -O2 -Wall -W  -I../../../mkspecs/linux-g++ -I. -I/usr/include/freetype2 -o mmx.o mmx.cpp
      x86_64-pc-linux-gnu-g++ -Wl,-O1 -Wl,--as-needed -Wl,-O1 -o mmx mmx.o     -L/usr/lib64 -mmmx 
      mmx enabled.
      3dnow auto-detection... ()
      x86_64-pc-linux-gnu-g++ -c -pipe -m3dnow -march=native -O2 -pipe -std=c++0x -O2 -Wall -W  -I../../../mkspecs/linux-g++ -I. -I/usr/include/freetype2 -o 3dnow.o 3dnow.cpp
      x86_64-pc-linux-gnu-g++ -Wl,-O1 -Wl,--as-needed -Wl,-O1 -o 3dnow 3dnow.o     -L/usr/lib64 -m3dnow 
      [...]
      
      
      Same on another system:
      i686-pc-linux-gnu-g++ -c -pipe -mmmx -Os -g0 -pipe -O2 -Wall -W  -I../../../mkspecs/linux-g++ -I. -I/usr/include/freetype2 -o mmx.o mmx.cpp
      i686-pc-linux-gnu-g++ -Wl,-O1 -Wl,--as-needed -Wl,-O1 -o mmx mmx.o     -mmmx 
      mmx enabled.
      3dnow auto-detection... ()
      i686-pc-linux-gnu-g++ -c -pipe -m3dnow -Os -g0 -pipe -O2 -Wall -W  -I../../../mkspecs/linux-g++ -I. -I/usr/include/freetype2 -o 3dnow.o 3dnow.cpp
      i686-pc-linux-gnu-g++ -Wl,-O1 -Wl,--as-needed -Wl,-O1 -o 3dnow 3dnow.o     -m3dnow 
      [...]
      

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          Issue Links

          For Gerrit Dashboard: QTBUG-32530
          # Subject Branch Project Status CR V

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              People

              Assignee:
              buddenha Oswald Buddenhagen
              Reporter:
              phr33d0m Denis M. (Phr33d0m)
              Votes:
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                Dates

                Created:
                Updated:
                Resolved:

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