[BACK]Return to include_next.m4 CVS log [TXT] [DIR] Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / libiconv / srcm4

Diff for /embedaddon/libiconv/srcm4/include_next.m4 between versions 1.1.1.2 and 1.1.1.3

version 1.1.1.2, 2012/05/29 09:29:44 version 1.1.1.3, 2021/03/17 13:38:46
Line 1 Line 1
# include_next.m4 serial 20# include_next.m4 serial 24
dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.dnl Copyright (C) 2006-2019 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation  dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,  dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.  dnl with or without modifications, as long as this notice is preserved.
   
 dnl From Paul Eggert and Derek Price.  dnl From Paul Eggert and Derek Price.
   
dnl Sets INCLUDE_NEXT and PRAGMA_SYSTEM_HEADER.dnl Sets INCLUDE_NEXT, INCLUDE_NEXT_AS_FIRST_DIRECTIVE, PRAGMA_SYSTEM_HEADER,
 dnl and PRAGMA_COLUMNS.
 dnl  dnl
 dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to  dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to
 dnl 'include' otherwise.  dnl 'include' otherwise.
Line 143  choke me Line 144  choke me
 # even if the compiler does not support include_next.  # even if the compiler does not support include_next.
 # The three "///" are to pacify Sun C 5.8, which otherwise would say  # The three "///" are to pacify Sun C 5.8, which otherwise would say
 # "warning: #include of /usr/include/... may be non-portable".  # "warning: #include of /usr/include/... may be non-portable".
# Use `""', not `<>', so that the /// cannot be confused with a C99 comment.# Use '""', not '<>', so that the /// cannot be confused with a C99 comment.
 # Note: This macro assumes that the header file is not empty after  # Note: This macro assumes that the header file is not empty after
 # preprocessing, i.e. it does not only define preprocessor macros but also  # preprocessing, i.e. it does not only define preprocessor macros but also
 # provides some type/enum definitions or function/variable declarations.  # provides some type/enum definitions or function/variable declarations.
Line 192  dnl until we can assume autoconf 2.64 or newer. Line 193  dnl until we can assume autoconf 2.64 or newer.
              if test AS_VAR_GET(gl_header_exists) = yes; then               if test AS_VAR_GET(gl_header_exists) = yes; then
              AS_VAR_POPDEF([gl_header_exists])               AS_VAR_POPDEF([gl_header_exists])
             ])              ])
               AC_LANG_CONFTEST(           gl_ABSOLUTE_HEADER_ONE(gl_HEADER_NAME)
                 [AC_LANG_SOURCE(           AS_VAR_COPY([gl_header], [gl_cv_absolute_]AS_TR_SH(gl_HEADER_NAME))
                    [[#include <]]m4_dquote(m4_defn([gl_HEADER_NAME]))[[>]]           AS_VAR_SET(gl_next_header, ['"'$gl_header'"'])
                  )]) 
               dnl AIX "xlc -E" and "cc -E" omit #line directives for header 
               dnl files that contain only a #include of other header files and 
               dnl no non-comment tokens of their own. This leads to a failure 
               dnl to detect the absolute name of <dirent.h>, <signal.h>, 
               dnl <poll.h> and others. The workaround is to force preservation 
               dnl of comments through option -C. This ensures all necessary 
               dnl #line directives are present. GCC supports option -C as well. 
               case "$host_os" in 
                 aix*) gl_absname_cpp="$ac_cpp -C" ;; 
                 *)    gl_absname_cpp="$ac_cpp" ;; 
               esac 
               dnl eval is necessary to expand gl_absname_cpp. 
               dnl Ultrix and Pyramid sh refuse to redirect output of eval, 
               dnl so use subshell. 
               AS_VAR_SET(gl_next_header, 
                 ['"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | 
                  sed -n '\#/]m4_defn([gl_HEADER_NAME])[#{ 
                    s#.*"\(.*/]m4_defn([gl_HEADER_NAME])[\)".*#\1# 
                    s#^/[^/]#//&# 
                    p 
                    q 
                  }'`'"']) 
           m4_if([$2], [check],            m4_if([$2], [check],
             [else              [else
                AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>'])                 AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>'])
Removed from v.1.1.1.2  
changed lines
  Added in v.1.1.1.3

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>