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On RHEL 6.2, gcc 4.4.6 complains: cc1: warning: command line option "-Wenum-compare" is valid for C++/ObjC++ but not for C which in turn breaks a -Werror build. Meanwhile, in Fedora 17, gcc 4.7.0, -Wenum-compare has been enhanced to also work on C, but at the same time, it is documented that -Wall now implicitly includes -Wenum-compare. Therefore, it is sufficient to remove explicit checks for this option, avoiding the warning from older gcc while still getting the compile-time safety from newer gcc. * m4/virt-compile-warnings.m4 (-Wenum-compare): Omit explicit check. |
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virt-compile-warnings.m4 | ||
virt-pkgconfig-back-compat.m4 |