diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 7395436ab9..67560498af 100644 --- a/configure.in +++ b/configure.in @@ -615,6 +615,11 @@ if test x$enable_gcc_warnings = xyes; then #error #endif]), have_gcc4=yes, have_gcc4=no) + AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [ +#if !defined(__GNUC__) || (__GNUC_MINOR__ < 2) +#error +#endif]), have_gcc42=yes, have_gcc42=no) + CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror" if test x$have_gcc4 = xyes ; then @@ -622,6 +627,14 @@ if test x$enable_gcc_warnings = xyes; then CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition" fi + if test x$have_gcc42 = xyes ; then + # These warnings break gcc 4.0.2 and work on gcc 4.2 + # XXXX020 Use -fstack-protector. + # XXXX020 See if any of these work with earlier versions. + # XXXX020 See if we can get -Wstrict-overflow=x for x>1 working. + CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -W" + fi + ##This will break the world on some 64-bit architectures # CFLAGS="$CFLAGS -Winline" |