-# XXX: do this with an M4 macro?
-#dnl Check for various -W flags
-#for flag in "" all unreachable-code conversion sign-compare disabled-optimization
-#do
-# AC_CACHE_CHECK([if \$CC accepts -W${flag}],
-# [ac_cv_c_W${flag}],
-# [CFLAGS="-W${flag} ${CFLAGS_save}"
-# AC_TRY_COMPILE([],,ac_cv_c_W${flag}=yes, ac_cv_c_W${flag}=no)])
-# if test "${ac_cv_c_W${flag}}" != "no"; then
-# CFLAGS_save="-W${flag} ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
-# CXXFLAGS_save="-W${flag} ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
-# OBJCFLAGS_save="-W${flag} ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
-# fi
-#done
-
-AC_CACHE_CHECK([if $CC accepts -Wall],
- [ac_cv_c_Wall],
- [CFLAGS="-Wall ${CFLAGS_save}"
- AC_TRY_COMPILE([],,ac_cv_c_Wall=yes, ac_cv_c_Wall=no)])
-
-AC_CACHE_CHECK([if $CC accepts -Wextra],
- [ac_cv_c_Wextra],
- [CFLAGS="-Wextra ${CFLAGS_save}"
- AC_TRY_COMPILE([],,ac_cv_c_Wextra=yes, ac_cv_c_Wextra=no)])
-
-AC_CACHE_CHECK([if $CC accepts -Wno-unused-parameter],
- [ac_cv_c_Wno_unused_parameter],
- [CFLAGS="-Wno-unused-parameter ${CFLAGS_save}"
- AC_TRY_COMPILE([],,ac_cv_c_Wno_unused_parameter=yes, ac_cv_c_Wno_unused_parameter=no)])
-
-AC_CACHE_CHECK([if $CC accepts -Wconversion],
- [ac_cv_c_Wconversion],
- [CFLAGS="-Wconversion ${CFLAGS_save}"
- AC_TRY_COMPILE([],,ac_cv_c_Wconversion=yes, ac_cv_c_Wconversion=no)])
-
-AC_CACHE_CHECK([if $CC accepts -Wunreachable-code],
- [ac_cv_c_Wunreachable_code],
- [CFLAGS="-Wunreachable-code ${CFLAGS_save}"
- AC_TRY_COMPILE([],,ac_cv_c_Wunreachable_code=yes, ac_cv_c_Wunreachable_code=no)])
-
-AC_CACHE_CHECK([if $CC accepts -Wsign-compare],
- [ac_cv_c_Wsign_compare],
- [CFLAGS="-Wsign-compare ${CFLAGS_save}"
- AC_TRY_COMPILE([],,ac_cv_c_Wsign_compare=yes, ac_cv_c_Wsign_compare=no)])
-
-if test "${ac_cv_c_Wall}" != "no"; then
- CFLAGS_save="-Wall ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
- CXXFLAGS_save="-Wall ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
-fi
-
-if test "${ac_cv_c_Wextra}" != "no"; then
- CFLAGS_save="-Wextra ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
- CXXFLAGS_save="-Wextra ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
- OBJCFLAGS_save="-Wextra ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
-fi
-
-if test "${ac_cv_c_Wno_unused_parameter}" != "no"; then
- CFLAGS_save="${CFLAGS_save} -Wno-unused-parameter"; CFLAGS="${CFLAGS_save}"
- CXXFLAGS_save="${CFLAGS_save} -Wno-unused-parameter"; CXXFLAGS="${CXXFLAGS_save}"
- OBJCFLAGS_save="${OBJCFLAGS_save} -Wno-unused-parameter "; OBJCFLAGS="${OBJCFLAGS_save}"
-fi
-
-if test "${ac_cv_c_Wsign_compare}" != "no"; then
- CFLAGS_save="-Wsign-compare ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
- CXXFLAGS_save="-Wsign-compare ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
- OBJCFLAGS_save="-Wsign-compare ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
-fi