diff options
Diffstat (limited to 'gl/m4/warn-on-use.m4')
| -rw-r--r-- | gl/m4/warn-on-use.m4 | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/gl/m4/warn-on-use.m4 b/gl/m4/warn-on-use.m4 index 42daae87..e43beebd 100644 --- a/gl/m4/warn-on-use.m4 +++ b/gl/m4/warn-on-use.m4 @@ -1,5 +1,5 @@ -# warn-on-use.m4 serial 2 -dnl Copyright (C) 2010 Free Software Foundation, Inc. +# warn-on-use.m4 serial 5 +dnl Copyright (C) 2010-2013 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -18,8 +18,8 @@ dnl with or without modifications, as long as this notice is preserved. # some systems declare functions in the wrong header, then INCLUDES # should do likewise. # -# If you assume C89, then it is generally safe to assume declarations -# for functions declared in that standard (such as gets) without +# It is generally safe to assume declarations for functions declared +# in the intersection of C89 and C11 (such as printf) without # needing gl_WARN_ON_USE_PREPARE. AC_DEFUN([gl_WARN_ON_USE_PREPARE], [ @@ -27,6 +27,8 @@ AC_DEFUN([gl_WARN_ON_USE_PREPARE], [AH_TEMPLATE([HAVE_RAW_DECL_]AS_TR_CPP(m4_defn([gl_decl])), [Define to 1 if ]m4_defn([gl_decl])[ is declared even after undefining macros.])])dnl +dnl FIXME: gl_Symbol must be used unquoted until we can assume +dnl autoconf 2.64 or newer. for gl_func in m4_flatten([$2]); do AS_VAR_PUSHDEF([gl_Symbol], [gl_cv_have_raw_decl_$gl_func])dnl AC_CACHE_CHECK([whether $gl_func is declared without a macro], @@ -35,8 +37,8 @@ AC_DEFUN([gl_WARN_ON_USE_PREPARE], [@%:@undef $gl_func (void) $gl_func;])], [AS_VAR_SET(gl_Symbol, [yes])], [AS_VAR_SET(gl_Symbol, [no])])]) - AS_VAR_IF(gl_Symbol, [yes], - [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1]) + AS_VAR_IF(gl_Symbol, [yes], + [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1]) dnl shortcut - if the raw declaration exists, then set a cache dnl variable to allow skipping any later AC_CHECK_DECL efforts eval ac_cv_have_decl_$gl_func=yes]) |