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dnl AC_COMPILE_WARNINGS
dnl
dnl Set the maximum warning verbosity according to compiler
dnl used. Currently supports g++ and gcc. This macro must be put after
dnl AC_PROG_CC and AC_PROG_CXX in configure.in
dnl
dnl Author: Loic Dachary
dnl
dnl Source:
dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_compile_warnings.html
AC_DEFUN([AC_COMPILE_WARNINGS],
[AC_MSG_CHECKING(maximum warning verbosity option)
if test -n "$CXX"
then
if test "$GXX" = "yes"
then
ac_compile_warnings_opt='-W -Wall'
fi
CXXFLAGS="$CXXFLAGS $ac_compile_warnings_opt"
ac_compile_warnings_msg="$ac_compile_warnings_opt for C++"
fi
if test -n "$CC"
then
if test "$GCC" = "yes"
then
ac_compile_warnings_opt='-W -Wall'
fi
CFLAGS="$CFLAGS $ac_compile_warnings_opt"
ac_compile_warnings_msg="$ac_compile_warnings_msg $ac_compile_warnings_opt for C"
fi
AC_MSG_RESULT($ac_compile_warnings_msg)
unset ac_compile_warnings_msg
unset ac_compile_warnings_opt
])
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