From: Paul Eggert Date: Tue, 14 Mar 2017 20:23:25 +0000 (-0700) Subject: snippets: move unadjusted snippet sources to lib X-Git-Tag: v1.0~6324 X-Git-Url: https://gitweb.git.savannah.gnu.org/gitweb/?a=commitdiff_plain;h=47cbe8bab23d3d7d064334e6ed34975a1e503227;p=gnulib.git snippets: move unadjusted snippet sources to lib Problem reported by Michal Privoznik in: http://lists.gnu.org/archive/html/bug-gnulib/2017-03/msg00039.html * lib/_Noreturn.h: Rename from build-aux/snippet/_Noreturn.h. * lib/arg-nonnull.h: Rename from build-aux/snippet/arg-nonnull.h. * lib/c++defs.h: Rename from build-aux/snippet/c++defs.h. * lib/unused-parameter.h: Rename from build-aux/snippet/unused-parameter.h. * lib/warn-on-use.h: Rename from build-aux/snippet/warn-on-use.h. * modules/snippet/_Noreturn (Files:, _NORETURN_H): * modules/snippet/arg-nonnull (Files:, ARG_NONNULL_H): * modules/snippet/c++defs (Files:, CXXDEFS_H): * modules/snippet/unused-parameter (Files:, UNUSED_PARAMETER_H): * modules/snippet/warn-on-use (Files: WARN_ON_USE_H): Adjust to file renamings. --- diff --git a/ChangeLog b/ChangeLog index 87d6a1901b..c237be4e1e 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,21 @@ +2017-03-14 Paul Eggert + + snippets: move unadjusted snippet sources to lib + Problem reported by Michal Privoznik in: + http://lists.gnu.org/archive/html/bug-gnulib/2017-03/msg00039.html + * lib/_Noreturn.h: Rename from build-aux/snippet/_Noreturn.h. + * lib/arg-nonnull.h: Rename from build-aux/snippet/arg-nonnull.h. + * lib/c++defs.h: Rename from build-aux/snippet/c++defs.h. + * lib/unused-parameter.h: Rename from + build-aux/snippet/unused-parameter.h. + * lib/warn-on-use.h: Rename from build-aux/snippet/warn-on-use.h. + * modules/snippet/_Noreturn (Files:, _NORETURN_H): + * modules/snippet/arg-nonnull (Files:, ARG_NONNULL_H): + * modules/snippet/c++defs (Files:, CXXDEFS_H): + * modules/snippet/unused-parameter (Files:, UNUSED_PARAMETER_H): + * modules/snippet/warn-on-use (Files: WARN_ON_USE_H): + Adjust to file renamings. + 2017-03-14 Mathieu Lirzin gnulib-tool: don't automatically distribute files from top/ diff --git a/build-aux/snippet/_Noreturn.h b/build-aux/snippet/_Noreturn.h deleted file mode 100644 index c44ad89b7c..0000000000 --- a/build-aux/snippet/_Noreturn.h +++ /dev/null @@ -1,10 +0,0 @@ -#if !defined _Noreturn && __STDC_VERSION__ < 201112 -# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \ - || 0x5110 <= __SUNPRO_C) -# define _Noreturn __attribute__ ((__noreturn__)) -# elif 1200 <= _MSC_VER -# define _Noreturn __declspec (noreturn) -# else -# define _Noreturn -# endif -#endif diff --git a/build-aux/snippet/arg-nonnull.h b/build-aux/snippet/arg-nonnull.h deleted file mode 100644 index f98a9cae24..0000000000 --- a/build-aux/snippet/arg-nonnull.h +++ /dev/null @@ -1,26 +0,0 @@ -/* A C macro for declaring that specific arguments must not be NULL. - Copyright (C) 2009-2017 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see . */ - -/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools - that the values passed as arguments n, ..., m must be non-NULL pointers. - n = 1 stands for the first argument, n = 2 for the second argument etc. */ -#ifndef _GL_ARG_NONNULL -# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 -# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) -# else -# define _GL_ARG_NONNULL(params) -# endif -#endif diff --git a/build-aux/snippet/c++defs.h b/build-aux/snippet/c++defs.h deleted file mode 100644 index ae1065343d..0000000000 --- a/build-aux/snippet/c++defs.h +++ /dev/null @@ -1,316 +0,0 @@ -/* C++ compatible function declaration macros. - Copyright (C) 2010-2017 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see . */ - -#ifndef _GL_CXXDEFS_H -#define _GL_CXXDEFS_H - -/* Begin/end the GNULIB_NAMESPACE namespace. */ -#if defined __cplusplus && defined GNULIB_NAMESPACE -# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE { -# define _GL_END_NAMESPACE } -#else -# define _GL_BEGIN_NAMESPACE -# define _GL_END_NAMESPACE -#endif - -/* The three most frequent use cases of these macros are: - - * For providing a substitute for a function that is missing on some - platforms, but is declared and works fine on the platforms on which - it exists: - - #if @GNULIB_FOO@ - # if !@HAVE_FOO@ - _GL_FUNCDECL_SYS (foo, ...); - # endif - _GL_CXXALIAS_SYS (foo, ...); - _GL_CXXALIASWARN (foo); - #elif defined GNULIB_POSIXCHECK - ... - #endif - - * For providing a replacement for a function that exists on all platforms, - but is broken/insufficient and needs to be replaced on some platforms: - - #if @GNULIB_FOO@ - # if @REPLACE_FOO@ - # if !(defined __cplusplus && defined GNULIB_NAMESPACE) - # undef foo - # define foo rpl_foo - # endif - _GL_FUNCDECL_RPL (foo, ...); - _GL_CXXALIAS_RPL (foo, ...); - # else - _GL_CXXALIAS_SYS (foo, ...); - # endif - _GL_CXXALIASWARN (foo); - #elif defined GNULIB_POSIXCHECK - ... - #endif - - * For providing a replacement for a function that exists on some platforms - but is broken/insufficient and needs to be replaced on some of them and - is additionally either missing or undeclared on some other platforms: - - #if @GNULIB_FOO@ - # if @REPLACE_FOO@ - # if !(defined __cplusplus && defined GNULIB_NAMESPACE) - # undef foo - # define foo rpl_foo - # endif - _GL_FUNCDECL_RPL (foo, ...); - _GL_CXXALIAS_RPL (foo, ...); - # else - # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ - _GL_FUNCDECL_SYS (foo, ...); - # endif - _GL_CXXALIAS_SYS (foo, ...); - # endif - _GL_CXXALIASWARN (foo); - #elif defined GNULIB_POSIXCHECK - ... - #endif -*/ - -/* _GL_EXTERN_C declaration; - performs the declaration with C linkage. */ -#if defined __cplusplus -# define _GL_EXTERN_C extern "C" -#else -# define _GL_EXTERN_C extern -#endif - -/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); - declares a replacement function, named rpl_func, with the given prototype, - consisting of return type, parameters, and attributes. - Example: - _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) - _GL_ARG_NONNULL ((1))); - */ -#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ - _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) -#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ - _GL_EXTERN_C rettype rpl_func parameters_and_attributes - -/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); - declares the system function, named func, with the given prototype, - consisting of return type, parameters, and attributes. - Example: - _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) - _GL_ARG_NONNULL ((1))); - */ -#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ - _GL_EXTERN_C rettype func parameters_and_attributes - -/* _GL_CXXALIAS_RPL (func, rettype, parameters); - declares a C++ alias called GNULIB_NAMESPACE::func - that redirects to rpl_func, if GNULIB_NAMESPACE is defined. - Example: - _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); - - Wrapping rpl_func in an object with an inline conversion operator - avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is - actually used in the program. */ -#define _GL_CXXALIAS_RPL(func,rettype,parameters) \ - _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) -#if defined __cplusplus && defined GNULIB_NAMESPACE -# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ - namespace GNULIB_NAMESPACE \ - { \ - static const struct _gl_ ## func ## _wrapper \ - { \ - typedef rettype (*type) parameters; \ - \ - inline operator type () const \ - { \ - return ::rpl_func; \ - } \ - } func = {}; \ - } \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#else -# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#endif - -/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); - is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); - except that the C function rpl_func may have a slightly different - declaration. A cast is used to silence the "invalid conversion" error - that would otherwise occur. */ -#if defined __cplusplus && defined GNULIB_NAMESPACE -# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ - namespace GNULIB_NAMESPACE \ - { \ - static const struct _gl_ ## func ## _wrapper \ - { \ - typedef rettype (*type) parameters; \ - \ - inline operator type () const \ - { \ - return reinterpret_cast(::rpl_func); \ - } \ - } func = {}; \ - } \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#else -# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#endif - -/* _GL_CXXALIAS_SYS (func, rettype, parameters); - declares a C++ alias called GNULIB_NAMESPACE::func - that redirects to the system provided function func, if GNULIB_NAMESPACE - is defined. - Example: - _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); - - Wrapping func in an object with an inline conversion operator - avoids a reference to func unless GNULIB_NAMESPACE::func is - actually used in the program. */ -#if defined __cplusplus && defined GNULIB_NAMESPACE -# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ - namespace GNULIB_NAMESPACE \ - { \ - static const struct _gl_ ## func ## _wrapper \ - { \ - typedef rettype (*type) parameters; \ - \ - inline operator type () const \ - { \ - return ::func; \ - } \ - } func = {}; \ - } \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#else -# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#endif - -/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); - is like _GL_CXXALIAS_SYS (func, rettype, parameters); - except that the C function func may have a slightly different declaration. - A cast is used to silence the "invalid conversion" error that would - otherwise occur. */ -#if defined __cplusplus && defined GNULIB_NAMESPACE -# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ - namespace GNULIB_NAMESPACE \ - { \ - static const struct _gl_ ## func ## _wrapper \ - { \ - typedef rettype (*type) parameters; \ - \ - inline operator type () const \ - { \ - return reinterpret_cast(::func); \ - } \ - } func = {}; \ - } \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#else -# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#endif - -/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); - is like _GL_CXXALIAS_SYS (func, rettype, parameters); - except that the C function is picked among a set of overloaded functions, - namely the one with rettype2 and parameters2. Two consecutive casts - are used to silence the "cannot find a match" and "invalid conversion" - errors that would otherwise occur. */ -#if defined __cplusplus && defined GNULIB_NAMESPACE - /* The outer cast must be a reinterpret_cast. - The inner cast: When the function is defined as a set of overloaded - functions, it works as a static_cast<>, choosing the designated variant. - When the function is defined as a single variant, it works as a - reinterpret_cast<>. The parenthesized cast syntax works both ways. */ -# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ - namespace GNULIB_NAMESPACE \ - { \ - static const struct _gl_ ## func ## _wrapper \ - { \ - typedef rettype (*type) parameters; \ - \ - inline operator type () const \ - { \ - return reinterpret_cast((rettype2 (*) parameters2)(::func)); \ - } \ - } func = {}; \ - } \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#else -# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ - _GL_EXTERN_C int _gl_cxxalias_dummy -#endif - -/* _GL_CXXALIASWARN (func); - causes a warning to be emitted when ::func is used but not when - GNULIB_NAMESPACE::func is used. func must be defined without overloaded - variants. */ -#if defined __cplusplus && defined GNULIB_NAMESPACE -# define _GL_CXXALIASWARN(func) \ - _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) -# define _GL_CXXALIASWARN_1(func,namespace) \ - _GL_CXXALIASWARN_2 (func, namespace) -/* To work around GCC bug , - 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 -#endif - -/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); - causes a warning to be emitted when the given overloaded variant of ::func - is used but not when GNULIB_NAMESPACE::func is used. */ -#if defined __cplusplus && defined GNULIB_NAMESPACE -# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ - _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ - GNULIB_NAMESPACE) -# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ - _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) -/* To work around GCC bug , - 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 -#endif - -#endif /* _GL_CXXDEFS_H */ diff --git a/build-aux/snippet/unused-parameter.h b/build-aux/snippet/unused-parameter.h deleted file mode 100644 index eece864dc9..0000000000 --- a/build-aux/snippet/unused-parameter.h +++ /dev/null @@ -1,36 +0,0 @@ -/* A C macro for declaring that specific function parameters are not used. - Copyright (C) 2008-2017 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see . */ - -/* _GL_UNUSED_PARAMETER is a marker that can be appended to function parameter - declarations for parameters that are not used. This helps to reduce - warnings, such as from GCC -Wunused-parameter. The syntax is as follows: - type param _GL_UNUSED_PARAMETER - or more generally - param_decl _GL_UNUSED_PARAMETER - For example: - int param _GL_UNUSED_PARAMETER - int *(*param)(void) _GL_UNUSED_PARAMETER - Other possible, but obscure and discouraged syntaxes: - int _GL_UNUSED_PARAMETER *(*param)(void) - _GL_UNUSED_PARAMETER int *(*param)(void) - */ -#ifndef _GL_UNUSED_PARAMETER -# if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) -# define _GL_UNUSED_PARAMETER __attribute__ ((__unused__)) -# else -# define _GL_UNUSED_PARAMETER -# endif -#endif diff --git a/build-aux/snippet/warn-on-use.h b/build-aux/snippet/warn-on-use.h deleted file mode 100644 index f2f69f6a34..0000000000 --- a/build-aux/snippet/warn-on-use.h +++ /dev/null @@ -1,109 +0,0 @@ -/* A C macro for emitting warnings if a function is used. - Copyright (C) 2010-2017 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see . */ - -/* _GL_WARN_ON_USE (function, "literal string") issues a declaration - for FUNCTION which will then trigger a compiler warning containing - the text of "literal string" anywhere that function is called, if - supported by the compiler. If the compiler does not support this - feature, the macro expands to an unused extern declaration. - - This macro is useful for marking a function as a potential - portability trap, with the intent that "literal string" include - instructions on the replacement function that should be used - instead. However, one of the reasons that a function is a - portability trap is if it has the wrong signature. Declaring - FUNCTION with a different signature in C is a compilation error, so - this macro must use the same type as any existing declaration so - that programs that avoid the problematic FUNCTION do not fail to - compile merely because they included a header that poisoned the - function. But this implies that _GL_WARN_ON_USE is only safe to - use if FUNCTION is known to already have a declaration. Use of - this macro implies that there must not be any other macro hiding - the declaration of FUNCTION; but undefining FUNCTION first is part - of the poisoning process anyway (although for symbols that are - provided only via a macro, the result is a compilation error rather - than a warning containing "literal string"). Also note that in - C++, it is only safe to use if FUNCTION has no overloads. - - For an example, it is possible to poison 'getline' by: - - adding a call to gl_WARN_ON_USE_PREPARE([[#include ]], - [getline]) in configure.ac, which potentially defines - HAVE_RAW_DECL_GETLINE - - adding this code to a header that wraps the system : - #undef getline - #if HAVE_RAW_DECL_GETLINE - _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but" - "not universally present; use the gnulib module getline"); - #endif - - It is not possible to directly poison global variables. But it is - possible to write a wrapper accessor function, and poison that - (less common usage, like &environ, will cause a compilation error - rather than issue the nice warning, but the end result of informing - the developer about their portability problem is still achieved): - #if HAVE_RAW_DECL_ENVIRON - static char ***rpl_environ (void) { return &environ; } - _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared"); - # undef environ - # define environ (*rpl_environ ()) - #endif - */ -#ifndef _GL_WARN_ON_USE - -# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) -/* 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 -# endif -#endif - -/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") - is like _GL_WARN_ON_USE (function, "string"), except that the function is - declared with the given prototype, consisting of return type, parameters, - and attributes. - This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does - not work in this case. */ -#ifndef _GL_WARN_ON_USE_CXX -# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) -# 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 -# endif -#endif - -/* _GL_WARN_EXTERN_C declaration; - performs the declaration with C linkage. */ -#ifndef _GL_WARN_EXTERN_C -# if defined __cplusplus -# define _GL_WARN_EXTERN_C extern "C" -# else -# define _GL_WARN_EXTERN_C extern -# endif -#endif diff --git a/lib/_Noreturn.h b/lib/_Noreturn.h new file mode 100644 index 0000000000..c44ad89b7c --- /dev/null +++ b/lib/_Noreturn.h @@ -0,0 +1,10 @@ +#if !defined _Noreturn && __STDC_VERSION__ < 201112 +# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \ + || 0x5110 <= __SUNPRO_C) +# define _Noreturn __attribute__ ((__noreturn__)) +# elif 1200 <= _MSC_VER +# define _Noreturn __declspec (noreturn) +# else +# define _Noreturn +# endif +#endif diff --git a/lib/arg-nonnull.h b/lib/arg-nonnull.h new file mode 100644 index 0000000000..f98a9cae24 --- /dev/null +++ b/lib/arg-nonnull.h @@ -0,0 +1,26 @@ +/* A C macro for declaring that specific arguments must not be NULL. + Copyright (C) 2009-2017 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools + that the values passed as arguments n, ..., m must be non-NULL pointers. + n = 1 stands for the first argument, n = 2 for the second argument etc. */ +#ifndef _GL_ARG_NONNULL +# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 +# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) +# else +# define _GL_ARG_NONNULL(params) +# endif +#endif diff --git a/lib/c++defs.h b/lib/c++defs.h new file mode 100644 index 0000000000..ae1065343d --- /dev/null +++ b/lib/c++defs.h @@ -0,0 +1,316 @@ +/* C++ compatible function declaration macros. + Copyright (C) 2010-2017 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +#ifndef _GL_CXXDEFS_H +#define _GL_CXXDEFS_H + +/* Begin/end the GNULIB_NAMESPACE namespace. */ +#if defined __cplusplus && defined GNULIB_NAMESPACE +# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE { +# define _GL_END_NAMESPACE } +#else +# define _GL_BEGIN_NAMESPACE +# define _GL_END_NAMESPACE +#endif + +/* The three most frequent use cases of these macros are: + + * For providing a substitute for a function that is missing on some + platforms, but is declared and works fine on the platforms on which + it exists: + + #if @GNULIB_FOO@ + # if !@HAVE_FOO@ + _GL_FUNCDECL_SYS (foo, ...); + # endif + _GL_CXXALIAS_SYS (foo, ...); + _GL_CXXALIASWARN (foo); + #elif defined GNULIB_POSIXCHECK + ... + #endif + + * For providing a replacement for a function that exists on all platforms, + but is broken/insufficient and needs to be replaced on some platforms: + + #if @GNULIB_FOO@ + # if @REPLACE_FOO@ + # if !(defined __cplusplus && defined GNULIB_NAMESPACE) + # undef foo + # define foo rpl_foo + # endif + _GL_FUNCDECL_RPL (foo, ...); + _GL_CXXALIAS_RPL (foo, ...); + # else + _GL_CXXALIAS_SYS (foo, ...); + # endif + _GL_CXXALIASWARN (foo); + #elif defined GNULIB_POSIXCHECK + ... + #endif + + * For providing a replacement for a function that exists on some platforms + but is broken/insufficient and needs to be replaced on some of them and + is additionally either missing or undeclared on some other platforms: + + #if @GNULIB_FOO@ + # if @REPLACE_FOO@ + # if !(defined __cplusplus && defined GNULIB_NAMESPACE) + # undef foo + # define foo rpl_foo + # endif + _GL_FUNCDECL_RPL (foo, ...); + _GL_CXXALIAS_RPL (foo, ...); + # else + # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ + _GL_FUNCDECL_SYS (foo, ...); + # endif + _GL_CXXALIAS_SYS (foo, ...); + # endif + _GL_CXXALIASWARN (foo); + #elif defined GNULIB_POSIXCHECK + ... + #endif +*/ + +/* _GL_EXTERN_C declaration; + performs the declaration with C linkage. */ +#if defined __cplusplus +# define _GL_EXTERN_C extern "C" +#else +# define _GL_EXTERN_C extern +#endif + +/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); + declares a replacement function, named rpl_func, with the given prototype, + consisting of return type, parameters, and attributes. + Example: + _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) + _GL_ARG_NONNULL ((1))); + */ +#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ + _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) +#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ + _GL_EXTERN_C rettype rpl_func parameters_and_attributes + +/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); + declares the system function, named func, with the given prototype, + consisting of return type, parameters, and attributes. + Example: + _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) + _GL_ARG_NONNULL ((1))); + */ +#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ + _GL_EXTERN_C rettype func parameters_and_attributes + +/* _GL_CXXALIAS_RPL (func, rettype, parameters); + declares a C++ alias called GNULIB_NAMESPACE::func + that redirects to rpl_func, if GNULIB_NAMESPACE is defined. + Example: + _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); + + Wrapping rpl_func in an object with an inline conversion operator + avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is + actually used in the program. */ +#define _GL_CXXALIAS_RPL(func,rettype,parameters) \ + _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) +#if defined __cplusplus && defined GNULIB_NAMESPACE +# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ + namespace GNULIB_NAMESPACE \ + { \ + static const struct _gl_ ## func ## _wrapper \ + { \ + typedef rettype (*type) parameters; \ + \ + inline operator type () const \ + { \ + return ::rpl_func; \ + } \ + } func = {}; \ + } \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#else +# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#endif + +/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); + is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); + except that the C function rpl_func may have a slightly different + declaration. A cast is used to silence the "invalid conversion" error + that would otherwise occur. */ +#if defined __cplusplus && defined GNULIB_NAMESPACE +# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ + namespace GNULIB_NAMESPACE \ + { \ + static const struct _gl_ ## func ## _wrapper \ + { \ + typedef rettype (*type) parameters; \ + \ + inline operator type () const \ + { \ + return reinterpret_cast(::rpl_func); \ + } \ + } func = {}; \ + } \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#else +# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#endif + +/* _GL_CXXALIAS_SYS (func, rettype, parameters); + declares a C++ alias called GNULIB_NAMESPACE::func + that redirects to the system provided function func, if GNULIB_NAMESPACE + is defined. + Example: + _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); + + Wrapping func in an object with an inline conversion operator + avoids a reference to func unless GNULIB_NAMESPACE::func is + actually used in the program. */ +#if defined __cplusplus && defined GNULIB_NAMESPACE +# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ + namespace GNULIB_NAMESPACE \ + { \ + static const struct _gl_ ## func ## _wrapper \ + { \ + typedef rettype (*type) parameters; \ + \ + inline operator type () const \ + { \ + return ::func; \ + } \ + } func = {}; \ + } \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#else +# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#endif + +/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); + is like _GL_CXXALIAS_SYS (func, rettype, parameters); + except that the C function func may have a slightly different declaration. + A cast is used to silence the "invalid conversion" error that would + otherwise occur. */ +#if defined __cplusplus && defined GNULIB_NAMESPACE +# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ + namespace GNULIB_NAMESPACE \ + { \ + static const struct _gl_ ## func ## _wrapper \ + { \ + typedef rettype (*type) parameters; \ + \ + inline operator type () const \ + { \ + return reinterpret_cast(::func); \ + } \ + } func = {}; \ + } \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#else +# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#endif + +/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); + is like _GL_CXXALIAS_SYS (func, rettype, parameters); + except that the C function is picked among a set of overloaded functions, + namely the one with rettype2 and parameters2. Two consecutive casts + are used to silence the "cannot find a match" and "invalid conversion" + errors that would otherwise occur. */ +#if defined __cplusplus && defined GNULIB_NAMESPACE + /* The outer cast must be a reinterpret_cast. + The inner cast: When the function is defined as a set of overloaded + functions, it works as a static_cast<>, choosing the designated variant. + When the function is defined as a single variant, it works as a + reinterpret_cast<>. The parenthesized cast syntax works both ways. */ +# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ + namespace GNULIB_NAMESPACE \ + { \ + static const struct _gl_ ## func ## _wrapper \ + { \ + typedef rettype (*type) parameters; \ + \ + inline operator type () const \ + { \ + return reinterpret_cast((rettype2 (*) parameters2)(::func)); \ + } \ + } func = {}; \ + } \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#else +# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ + _GL_EXTERN_C int _gl_cxxalias_dummy +#endif + +/* _GL_CXXALIASWARN (func); + causes a warning to be emitted when ::func is used but not when + GNULIB_NAMESPACE::func is used. func must be defined without overloaded + variants. */ +#if defined __cplusplus && defined GNULIB_NAMESPACE +# define _GL_CXXALIASWARN(func) \ + _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) +# define _GL_CXXALIASWARN_1(func,namespace) \ + _GL_CXXALIASWARN_2 (func, namespace) +/* To work around GCC bug , + 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 +#endif + +/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); + causes a warning to be emitted when the given overloaded variant of ::func + is used but not when GNULIB_NAMESPACE::func is used. */ +#if defined __cplusplus && defined GNULIB_NAMESPACE +# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ + _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ + GNULIB_NAMESPACE) +# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ + _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) +/* To work around GCC bug , + 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 +#endif + +#endif /* _GL_CXXDEFS_H */ diff --git a/lib/unused-parameter.h b/lib/unused-parameter.h new file mode 100644 index 0000000000..eece864dc9 --- /dev/null +++ b/lib/unused-parameter.h @@ -0,0 +1,36 @@ +/* A C macro for declaring that specific function parameters are not used. + Copyright (C) 2008-2017 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +/* _GL_UNUSED_PARAMETER is a marker that can be appended to function parameter + declarations for parameters that are not used. This helps to reduce + warnings, such as from GCC -Wunused-parameter. The syntax is as follows: + type param _GL_UNUSED_PARAMETER + or more generally + param_decl _GL_UNUSED_PARAMETER + For example: + int param _GL_UNUSED_PARAMETER + int *(*param)(void) _GL_UNUSED_PARAMETER + Other possible, but obscure and discouraged syntaxes: + int _GL_UNUSED_PARAMETER *(*param)(void) + _GL_UNUSED_PARAMETER int *(*param)(void) + */ +#ifndef _GL_UNUSED_PARAMETER +# if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) +# define _GL_UNUSED_PARAMETER __attribute__ ((__unused__)) +# else +# define _GL_UNUSED_PARAMETER +# endif +#endif diff --git a/lib/warn-on-use.h b/lib/warn-on-use.h new file mode 100644 index 0000000000..f2f69f6a34 --- /dev/null +++ b/lib/warn-on-use.h @@ -0,0 +1,109 @@ +/* A C macro for emitting warnings if a function is used. + Copyright (C) 2010-2017 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +/* _GL_WARN_ON_USE (function, "literal string") issues a declaration + for FUNCTION which will then trigger a compiler warning containing + the text of "literal string" anywhere that function is called, if + supported by the compiler. If the compiler does not support this + feature, the macro expands to an unused extern declaration. + + This macro is useful for marking a function as a potential + portability trap, with the intent that "literal string" include + instructions on the replacement function that should be used + instead. However, one of the reasons that a function is a + portability trap is if it has the wrong signature. Declaring + FUNCTION with a different signature in C is a compilation error, so + this macro must use the same type as any existing declaration so + that programs that avoid the problematic FUNCTION do not fail to + compile merely because they included a header that poisoned the + function. But this implies that _GL_WARN_ON_USE is only safe to + use if FUNCTION is known to already have a declaration. Use of + this macro implies that there must not be any other macro hiding + the declaration of FUNCTION; but undefining FUNCTION first is part + of the poisoning process anyway (although for symbols that are + provided only via a macro, the result is a compilation error rather + than a warning containing "literal string"). Also note that in + C++, it is only safe to use if FUNCTION has no overloads. + + For an example, it is possible to poison 'getline' by: + - adding a call to gl_WARN_ON_USE_PREPARE([[#include ]], + [getline]) in configure.ac, which potentially defines + HAVE_RAW_DECL_GETLINE + - adding this code to a header that wraps the system : + #undef getline + #if HAVE_RAW_DECL_GETLINE + _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but" + "not universally present; use the gnulib module getline"); + #endif + + It is not possible to directly poison global variables. But it is + possible to write a wrapper accessor function, and poison that + (less common usage, like &environ, will cause a compilation error + rather than issue the nice warning, but the end result of informing + the developer about their portability problem is still achieved): + #if HAVE_RAW_DECL_ENVIRON + static char ***rpl_environ (void) { return &environ; } + _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared"); + # undef environ + # define environ (*rpl_environ ()) + #endif + */ +#ifndef _GL_WARN_ON_USE + +# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) +/* 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 +# endif +#endif + +/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") + is like _GL_WARN_ON_USE (function, "string"), except that the function is + declared with the given prototype, consisting of return type, parameters, + and attributes. + This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does + not work in this case. */ +#ifndef _GL_WARN_ON_USE_CXX +# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) +# 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 +# endif +#endif + +/* _GL_WARN_EXTERN_C declaration; + performs the declaration with C linkage. */ +#ifndef _GL_WARN_EXTERN_C +# if defined __cplusplus +# define _GL_WARN_EXTERN_C extern "C" +# else +# define _GL_WARN_EXTERN_C extern +# endif +#endif diff --git a/modules/snippet/_Noreturn b/modules/snippet/_Noreturn index d5e8ff0264..0aac8136d7 100644 --- a/modules/snippet/_Noreturn +++ b/modules/snippet/_Noreturn @@ -5,7 +5,7 @@ Applicability: all Files: -build-aux/snippet/_Noreturn.h +lib/_Noreturn.h Depends-on: @@ -16,7 +16,7 @@ Makefile.am: # gnulib Makefile snippets, it must be present in all makefiles that # need it. This is ensured by the applicability 'all' defined above. -_NORETURN_H=$(top_srcdir)/build-aux/snippet/_Noreturn.h +_NORETURN_H=$(srcdir)/_Noreturn.h Include: diff --git a/modules/snippet/arg-nonnull b/modules/snippet/arg-nonnull index 0eab137e6f..a397ecb6f1 100644 --- a/modules/snippet/arg-nonnull +++ b/modules/snippet/arg-nonnull @@ -5,7 +5,7 @@ Applicability: all Files: -build-aux/snippet/arg-nonnull.h +lib/arg-nonnull.h Depends-on: @@ -16,7 +16,7 @@ Makefile.am: # gnulib Makefile snippets, it must be present in all makefiles that # need it. This is ensured by the applicability 'all' defined above. -ARG_NONNULL_H=$(top_srcdir)/build-aux/snippet/arg-nonnull.h +ARG_NONNULL_H=$(srcdir)/arg-nonnull.h Include: diff --git a/modules/snippet/c++defs b/modules/snippet/c++defs index 9612c8b75d..a952b0136a 100644 --- a/modules/snippet/c++defs +++ b/modules/snippet/c++defs @@ -5,7 +5,7 @@ Applicability: all Files: -build-aux/snippet/c++defs.h +lib/c++defs.h Depends-on: @@ -16,7 +16,7 @@ Makefile.am: # gnulib Makefile snippets, it must be present in all makefiles that # need it. This is ensured by the applicability 'all' defined above. -CXXDEFS_H=$(top_srcdir)/build-aux/snippet/c++defs.h +CXXDEFS_H=$(srcdir)/c++defs.h Include: diff --git a/modules/snippet/unused-parameter b/modules/snippet/unused-parameter index 4a231fed0d..561b3e45a3 100644 --- a/modules/snippet/unused-parameter +++ b/modules/snippet/unused-parameter @@ -5,7 +5,7 @@ Applicability: all Files: -build-aux/snippet/unused-parameter.h +lib/unused-parameter.h Depends-on: @@ -16,7 +16,7 @@ Makefile.am: # gnulib Makefile snippets, it must be present in all makefiles that # need it. This is ensured by the applicability 'all' defined above. -UNUSED_PARAMETER_H=$(top_srcdir)/build-aux/snippet/unused-parameter.h +UNUSED_PARAMETER_H=$(srcdir)/unused-parameter.h Include: diff --git a/modules/snippet/warn-on-use b/modules/snippet/warn-on-use index 2642bc2ebc..4f91818cee 100644 --- a/modules/snippet/warn-on-use +++ b/modules/snippet/warn-on-use @@ -5,7 +5,7 @@ Applicability: all Files: -build-aux/snippet/warn-on-use.h +lib/warn-on-use.h m4/warn-on-use.m4 Depends-on: @@ -17,7 +17,7 @@ Makefile.am: # gnulib Makefile snippets, it must be present in all makefiles that # need it. This is ensured by the applicability 'all' defined above. -WARN_ON_USE_H=$(top_srcdir)/build-aux/snippet/warn-on-use.h +WARN_ON_USE_H=$(srcdir)/warn-on-use.h Include: