dnl Copyright (C) 2009 Sun Microsystems dnl This file is free software; Sun Microsystems dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl AC_PANDORA_WARNINGS([less-warnings|warnings-always-on]) dnl less-warnings turn on a limited set of warnings dnl warnings-always-on always set warnings=error regardless of tarball/vc dnl @TODO: remove less-warnings option as soon as Drizzle is clean enough to dnl allow it AC_DEFUN([PANDORA_WARNINGS],[ m4_define([PW_LESS_WARNINGS],[no]) m4_define([PW_WARN_ALWAYS_ON],[no]) ifdef([m4_define],,[define([m4_define], defn([define]))]) ifdef([m4_undefine],,[define([m4_undefine], defn([undefine]))]) m4_foreach([pw_arg],[$*],[ m4_case(pw_arg, [less-warnings],[ m4_undefine([PW_LESS_WARNINGS]) m4_define([PW_LESS_WARNINGS],[yes]) ], [warnings-always-on],[ m4_undefine([PW_WARN_ALWAYS_ON]) m4_define([PW_WARN_ALWAYS_ON],[yes]) ]) ]) AC_REQUIRE([PANDORA_BUILDING_FROM_VC]) m4_if(PW_WARN_ALWAYS_ON, [yes], [ac_cv_warnings_as_errors=yes], AS_IF([test "$ac_cv_building_from_vc" = "yes"], [ac_cv_warnings_as_errors=yes], [ac_cv_warnings_as_errors=no])) AC_ARG_ENABLE([profiling], [AS_HELP_STRING([--enable-profiling], [Toggle profiling @<:@default=off@:>@])], [ac_profiling="$enableval"], [ac_profiling="no"]) AC_ARG_ENABLE([coverage], [AS_HELP_STRING([--enable-coverage], [Toggle coverage @<:@default=off@:>@])], [ac_coverage="$enableval"], [ac_coverage="no"]) AS_IF([test "$GCC" = "yes"],[ AS_IF([test "$ac_profiling" = "yes"],[ CC_PROFILING="-pg" save_LIBS="${LIBS}" LIBS="" AC_CHECK_LIB(c_p, read) LIBC_P="${LIBS}" LIBS="${save_LIBS}" AC_SUBST(LIBC_P) ],[ CC_PROFILING=" " ]) AS_IF([test "$ac_coverage" = "yes"], [CC_COVERAGE="-fprofile-arcs -ftest-coverage"]) AS_IF([test "$ac_cv_warnings_as_errors" = "yes"], [W_FAIL="-Werror"]) AC_CACHE_CHECK([whether it is safe to use -fdiagnostics-show-option], [ac_cv_safe_to_use_fdiagnostics_show_option_], [save_CFLAGS="$CFLAGS" CFLAGS="-fdiagnostics-show-option ${AM_CFLAGS}" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([],[])], [ac_cv_safe_to_use_fdiagnostics_show_option_=yes], [ac_cv_safe_to_use_fdiagnostics_show_option_=no]) CFLAGS="$save_CFLAGS"]) AS_IF([test "$ac_cv_safe_to_use_fdiagnostics_show_option_" = "yes"], [ F_DIAGNOSTICS_SHOW_OPTION="-fdiagnostics-show-option" ]) AC_CACHE_CHECK([whether it is safe to use -Wconversion], [ac_cv_safe_to_use_wconversion_], [save_CFLAGS="$CFLAGS" dnl Use -Werror here instead of ${W_FAIL} so that we don't spew dnl conversion warnings to all the tarball folks CFLAGS="-Wconversion -Werror -pedantic ${AM_CFLAGS}" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ #include void foo(bool a) { (void)a; } ]],[[ foo(0); ]])], [ac_cv_safe_to_use_wconversion_=yes], [ac_cv_safe_to_use_wconversion_=no]) CFLAGS="$save_CFLAGS"]) AS_IF([test "$ac_cv_safe_to_use_wconversion_" = "yes"], [W_CONVERSION="-Wconversion" AC_CACHE_CHECK([whether it is safe to use -Wconversion with htons], [ac_cv_safe_to_use_Wconversion_], [save_CFLAGS="$CFLAGS" dnl Use -Werror here instead of ${W_FAIL} so that we don't spew dnl conversion warnings to all the tarball folks CFLAGS="-Wconversion -Werror -pedantic ${AM_CFLAGS}" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ #include ]],[[ uint16_t x= htons(80); ]])], [ac_cv_safe_to_use_Wconversion_=yes], [ac_cv_safe_to_use_Wconversion_=no]) CFLAGS="$save_CFLAGS"]) AS_IF([test "$ac_cv_safe_to_use_Wconversion_" = "no"], [NO_CONVERSION="-Wno-conversion"]) ]) NO_STRICT_ALIASING="-fno-strict-aliasing -Wno-strict-aliasing" NO_SHADOW="-Wno-shadow" m4_if(PW_LESS_WARNINGS,[no],[ BASE_WARNINGS_FULL="-Wformat=2 ${W_CONVERSION} -Wstrict-aliasing" CC_WARNINGS_FULL="-Wswitch-default -Wswitch-enum -Wwrite-strings" CXX_WARNINGS_FULL="-Weffc++ -Wold-style-cast" ],[ BASE_WARNINGS_FULL="-Wformat ${NO_STRICT_ALIASING}" ]) BASE_WARNINGS="${W_FAIL} -pedantic -Wall -Wextra -Wundef -Wshadow ${F_DIAGNOSTICS_SHOW_OPTION} ${CFLAG_VISIBILITY} ${BASE_WARNINGS_FULL}" CC_WARNINGS="${BASE_WARNINGS} -Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wcast-align ${CC_WARNINGS_FULL}" CXX_WARNINGS="${BASE_WARNINGS} -Woverloaded-virtual -Wnon-virtual-dtor -Wctor-dtor-privacy -Wno-long-long ${CXX_WARNINGS_FULL}" AC_CACHE_CHECK([whether it is safe to use -Wmissing-declarations from C++], [ac_cv_safe_to_use_Wmissing_declarations_], [AC_LANG_PUSH(C++) save_CXXFLAGS="$CXXFLAGS" CXXFLAGS="-Werror -pedantic -Wmissing-declarations ${AM_CXXFLAGS}" AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( [[ #include ]], [[]]) ], [ac_cv_safe_to_use_Wmissing_declarations_=yes], [ac_cv_safe_to_use_Wmissing_declarations_=no]) CXXFLAGS="$save_CXXFLAGS" AC_LANG_POP() ]) AS_IF([test "$ac_cv_safe_to_use_Wmissing_declarations_" = "yes"], [CXX_WARNINGS="${CXX_WARNINGS} -Wmissing-declarations"]) AC_CACHE_CHECK([whether it is safe to use -Wlogical-op], [ac_cv_safe_to_use_Wlogical_op_], [save_CFLAGS="$CFLAGS" CFLAGS="${W_FAIL} -pedantic -Wlogical-op ${AM_CFLAGS}" AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( [[ #include ]], [[]]) ], [ac_cv_safe_to_use_Wlogical_op_=yes], [ac_cv_safe_to_use_Wlogical_op_=no]) CFLAGS="$save_CFLAGS"]) AS_IF([test "$ac_cv_safe_to_use_Wlogical_op_" = "yes"], [CC_WARNINGS="${CC_WARNINGS} -Wlogical-op"]) AC_CACHE_CHECK([whether it is safe to use -Wredundant-decls from C++], [ac_cv_safe_to_use_Wredundant_decls_], [AC_LANG_PUSH(C++) save_CXXFLAGS="${CXXFLAGS}" CXXFLAGS="${W_FAIL} -pedantic -Wredundant-decls ${AM_CXXFLAGS}" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([ template struct C { void foo(); }; template void C::foo() { } template <> void C::foo(); AC_INCLUDES_DEFAULT])], [ac_cv_safe_to_use_Wredundant_decls_=yes], [ac_cv_safe_to_use_Wredundant_decls_=no]) CXXFLAGS="${save_CXXFLAGS}" AC_LANG_POP()]) AS_IF([test "$ac_cv_safe_to_use_Wredundant_decls_" = "yes"], [CXX_WARNINGS="${CXX_WARNINGS} -Wredundant-decls"], [CXX_WARNINGS="${CXX_WARNINGS} -Wno-redundant-decls"]) NO_REDUNDANT_DECLS="-Wno-redundant-decls" PROTOSKIP_WARNINGS="-Wno-effc++ -Wno-shadow" ]) AS_IF([test "$SUNCC" = "yes"],[ AS_IF([test "$ac_profiling" = "yes"], [CC_PROFILING="-xinstrument=datarace"]) AS_IF([test "$ac_cv_warnings_as_errors" = "yes"], [W_FAIL="-errwarn=%all"]) AC_CACHE_CHECK([whether E_PASTE_RESULT_NOT_TOKEN is usable], [ac_cv_paste_result], [ save_CFLAGS="${CFLAGS}" CFLAGS="-errwarn=%all -erroff=E_PASTE_RESULT_NOT_TOKEN ${CFLAGS}" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([ AC_INCLUDES_DEFAULT ],[ int x= 0;])], [ac_cv_paste_result=yes], [ac_cv_paste_result=no]) CFLAGS="${save_CFLAGS}" ]) AS_IF([test $ac_cv_paste_result = yes], [W_PASTE_RESULT=",E_PASTE_RESULT_NOT_TOKEN"]) m4_if(PW_LESS_WARNINGS, [no],[ CC_WARNINGS_FULL="-erroff=E_INTEGER_OVERFLOW_DETECTED${W_PASTE_RESULT}" ],[ CC_WARNINGS_FULL="-erroff=E_ATTRIBUTE_NOT_VAR" CXX_WARNINGS_FULL="-erroff=attrskipunsup,doubunder,reftotemp,inllargeuse,truncwarn1,signextwarn,inllargeint" ]) CC_WARNINGS="-v -errtags=yes ${W_FAIL} ${CC_WARNINGS_FULL}" CXX_WARNINGS="+w +w2 -xwe -xport64 -errtags=yes ${CXX_WARNINGS_FULL} ${W_FAIL}" PROTOSKIP_WARNINGS="-erroff=attrskipunsup,doubunder,reftotemp,wbadinitl,identexpected,inllargeuse,truncwarn1,signextwarn" NO_UNREACHED="-erroff=E_STATEMENT_NOT_REACHED" ]) AC_SUBST(NO_CONVERSION) AC_SUBST(NO_REDUNDANT_DECLS) AC_SUBST(NO_UNREACHED) AC_SUBST(NO_SHADOW) AC_SUBST(NO_STRICT_ALIASING) AC_SUBST(PROTOSKIP_WARNINGS) ])