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@@ -819,6 +819,15 @@ if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xy
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have_shorten64_flag=no)
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CFLAGS="$save_CFLAGS"
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+ case $host in
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+ *-*-openbsd*)
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+ # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
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+ # That's fine, except that the headers don't pass -Wredundant-decls.
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+ # Therefore, let's disable -Wsystem-headers when we're building
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+ # with maximal warnings on OpenBSD.
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+ CFLAGS="$CFLAGS -Wno-system-headers" ;;
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+ esac
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+
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CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum"
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if test x$enable_gcc_warnings = xyes; then
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CFLAGS="$CFLAGS -Werror"
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@@ -826,7 +835,7 @@ if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xy
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# Disabled, so we can use mallinfo(): -Waggregate-return
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- if test x$have_gcc4 = xyes ; then
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+ if test x$have_gcc4 = xyes ; then
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# These warnings break gcc 3.3.5 and work on gcc 4.0.2
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CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
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fi
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