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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [bfd/] [warning.m4] - Rev 834

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dnl Common configure.in fragment
 
AC_DEFUN([AM_BINUTILS_WARNINGS],[
GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow"
 
AC_ARG_ENABLE(werror,
  [  --enable-werror         treat compile warnings as errors],
  [case "${enableval}" in
     yes | y) ERROR_ON_WARNING="yes" ;;
     no | n)  ERROR_ON_WARNING="no" ;;
     *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
   esac])
 
# Enable -Wno-format by default when using gcc on mingw
case "${host}" in
  *-*-mingw32*)
    if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
      GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wno-format"
    fi
    ;;
  *) ;;
esac
 
# Enable -Werror by default when using gcc
if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
    ERROR_ON_WARNING=yes
fi
 
NO_WERROR=
if test "${ERROR_ON_WARNING}" = yes ; then
    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
    NO_WERROR="-Wno-error"
fi
 
if test "${GCC}" = yes ; then
  WARN_CFLAGS="${GCC_WARN_CFLAGS}"
fi
 
AC_ARG_ENABLE(build-warnings,
[  --enable-build-warnings enable build-time compiler warnings],
[case "${enableval}" in
  yes)	WARN_CFLAGS="${GCC_WARN_CFLAGS}";;
  no)	if test "${GCC}" = yes ; then
	  WARN_CFLAGS="-w"
	fi;;
  ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
        WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}";;
  *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
        WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}";;
  *)    WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
esac])
 
if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then
  echo "Setting warning flags = $WARN_CFLAGS" 6>&1
fi
 
AC_SUBST(WARN_CFLAGS)
AC_SUBST(NO_WERROR)
])
 

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