diff options
Diffstat (limited to 'build-aux')
| -rw-r--r-- | build-aux/c++defs.h | 36 | ||||
| -rw-r--r-- | build-aux/warn-on-use.h | 9 |
2 files changed, 36 insertions, 9 deletions
diff --git a/build-aux/c++defs.h b/build-aux/c++defs.h index 7d710898..0c2fad7a 100644 --- a/build-aux/c++defs.h +++ b/build-aux/c++defs.h @@ -221,10 +221,20 @@ _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) # define _GL_CXXALIASWARN_1(func,namespace) \ _GL_CXXALIASWARN_2 (func, namespace) -# define _GL_CXXALIASWARN_2(func,namespace) \ - _GL_WARN_ON_USE (func, \ - "The symbol ::" #func " refers to the system function. " \ - "Use " #namespace "::" #func " instead.") +/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, + we enable the warning only when not optimizing. */ +# if !__OPTIMIZE__ +# define _GL_CXXALIASWARN_2(func,namespace) \ + _GL_WARN_ON_USE (func, \ + "The symbol ::" #func " refers to the system function. " \ + "Use " #namespace "::" #func " instead.") +# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING +# define _GL_CXXALIASWARN_2(func,namespace) \ + extern __typeof__ (func) func +# else +# define _GL_CXXALIASWARN_2(func,namespace) \ + _GL_EXTERN_C int _gl_cxxalias_dummy +# endif #else # define _GL_CXXALIASWARN(func) \ _GL_EXTERN_C int _gl_cxxalias_dummy @@ -239,10 +249,20 @@ GNULIB_NAMESPACE) # define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) -# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ - _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ - "The symbol ::" #func " refers to the system function. " \ - "Use " #namespace "::" #func " instead.") +/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, + we enable the warning only when not optimizing. */ +# if !__OPTIMIZE__ +# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ + _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ + "The symbol ::" #func " refers to the system function. " \ + "Use " #namespace "::" #func " instead.") +# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING +# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ + extern __typeof__ (func) func +# else +# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ + _GL_EXTERN_C int _gl_cxxalias_dummy +# endif #else # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ _GL_EXTERN_C int _gl_cxxalias_dummy diff --git a/build-aux/warn-on-use.h b/build-aux/warn-on-use.h index 1cd5062d..171e5991 100644 --- a/build-aux/warn-on-use.h +++ b/build-aux/warn-on-use.h @@ -67,7 +67,10 @@ /* A compiler attribute is available in gcc versions 4.3.0 and later. */ # define _GL_WARN_ON_USE(function, message) \ extern __typeof__ (function) function __attribute__ ((__warning__ (message))) - +# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING +/* Verify the existence of the function. */ +# define _GL_WARN_ON_USE(function, message) \ +extern __typeof__ (function) function # else /* Unsupported. */ # define _GL_WARN_ON_USE(function, message) \ _GL_WARN_EXTERN_C int _gl_warn_on_use @@ -85,6 +88,10 @@ _GL_WARN_EXTERN_C int _gl_warn_on_use # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ extern rettype function parameters_and_attributes \ __attribute__ ((__warning__ (msg))) +# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING +/* Verify the existence of the function. */ +# define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ +extern rettype function parameters_and_attributes # else /* Unsupported. */ # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ _GL_WARN_EXTERN_C int _gl_warn_on_use |