-
-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"])
-
-if test "$GCC" = "yes"
-then
-
- AC_CACHE_CHECK([whether it is safe to use -fdiagnostics-show-option],
- [ac_cv_safe_to_use_fdiagnostics_show_option_],
- [save_CFLAGS="$CFLAGS"
- CFLAGS="-fdiagnostics-show-option ${CFLAGS}"
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([],[])],
- [ac_cv_safe_to_use_fdiagnostics_show_option_=yes],
- [ac_cv_safe_to_use_fdiagnostics_show_option_=no])
- CFLAGS="$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"
- CFLAGS="-Werror -Wconversion ${CFLAGS}"
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([[
-#include <stdbool.h>
-void foo(bool a)
-{
- (void)a;
-}
- ]],[[
-foo(0);
- ]])],
- [ac_cv_safe_to_use_wconversion_=yes],
- [ac_cv_safe_to_use_wconversion_=no])
- CFLAGS="$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"
- CFLAGS="-Werror -Wconversion ${CFLAGS}"
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[
-#include <netinet/in.h>
- ]],[[
-uint16_t x= htons(80);
- ]])],
- [ac_cv_safe_to_use_Wconversion_=yes],
- [ac_cv_safe_to_use_Wconversion_=no])
- CFLAGS="$save_CFLAGS"])
-
- AS_IF([test "$ac_cv_safe_to_use_Wconversion_" = "no"],
- [
- NO_CONVERSION="-Wno-conversion"
- ])
- ])
-
- W_STRICT_ALIASING="-Wno-strict-aliasing"
-
- AS_IF([test "$ac_profiling" = "yes"],
- [CC_PROFILING="-pg"])
-
- AS_IF([test "$ac_coverage" = "yes"],
- [CC_COVERAGE="-fprofile-arcs -ftest-coverage"])
-
- AS_IF([test "$building_from_bzr" = "yes"],
- [W_FAIL="-Werror"])
-
- BASE_WARNINGS="-pedantic -W -Wall -Wextra ${W_FAIL} -Wundef -Wshadow -Wmissing-declarations ${W_STRICT_ALIASING} ${F_DIAGNOSTICS_SHOW_OPTION} ${W_CONVERSION}"
- CC_WARNINGS="${BASE_WARNINGS} -Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls -Wswitch-default -Wswitch-enum -Wcast-align"
- CXX_WARNINGS="${BASE_WARNINGS} -Woverloaded-virtual -Wnon-virtual-dtor -Wctor-dtor-privacy -Wold-style-cast -Weffc++ -Wno-long-long"
-
- AC_CACHE_CHECK([whether it is safe to use -Wlogical-op],
- [ac_cv_safe_to_use_Wlogical_op_],
- [save_CFLAGS="$CFLAGS"
- CFLAGS="-Wlogical-op"
- AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM(
- [[
-#include <stdio>
- ]], [[]])
- ],
- [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="${CXXFLAGS} ${W_FAIL} -Wredundant-decls"
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([
-template <typename E> struct C { void foo(); };
-template <typename E> void C<E>::foo() { }
-template <> void C<int>::foo();
- AC_INCLUDES_DEFAULT])],
- [ac_cv_safe_to_use_Wredundant_decls_=yes],
- [ac_cv_safe_to_use_Wredundant_decls_=no])
- CXXFLAGS="${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"