| dnl @synopsis AC_COMPILE_WARNINGS |
| dnl |
| dnl Set the maximum warning verbosity according to C and C++ compiler used. |
| dnl Currently supports g++ and gcc. |
| dnl |
| dnl The compiler options are always added CFLAGS and CXXFLAGS even if |
| dnl these are overidden at configure time. Removing the maximum warning |
| dnl flags can be removed with --without-maximum-compile-warnings. For example: |
| dnl |
| dnl ./configure --without-maximum-compile-warnings CFLAGS= CXXFLAGS= |
| dnl |
| dnl @category Misc |
| dnl @author Loic Dachary <loic@senga.org> |
| dnl @author William Fulton <wsf@fultondesigns.co.uk> |
| dnl @version 2005-04-29 |
| dnl @license GPLWithACException |
| |
| AC_DEFUN([AC_COMPILE_WARNINGS], [ |
| AC_MSG_CHECKING([maximum warning verbosity option]) |
| AC_REQUIRE([AC_PROG_CC]) |
| AC_REQUIRE([AC_PROG_CXX]) |
| |
| AC_ARG_WITH([maximum-compile-warnings], |
| AS_HELP_STRING([--without-maximum-compile-warnings], |
| [Disable maximum warning verbosity]), |
| [ac_compile_warnings_on="$withval"], |
| [ac_compile_warnings_on=""]) |
| |
| if test x"$ac_compile_warnings_on" = xno |
| then |
| ac_compile_warnings_msg=no |
| else |
| if test -n "$CXX" |
| then |
| if test "$GXX" = "yes" |
| then |
| ac_compile_warnings_opt='-Wall -W -ansi -pedantic' |
| 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='-Wall -W -ansi -pedantic' |
| fi |
| CFLAGS="$CFLAGS $ac_compile_warnings_opt" |
| ac_compile_warnings_msg="$ac_compile_warnings_msg $ac_compile_warnings_opt for C" |
| fi |
| fi |
| AC_MSG_RESULT([$ac_compile_warnings_msg]) |
| unset ac_compile_warnings_msg |
| unset ac_compile_warnings_opt |
| ]) |
