X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Fstdio_h.m4;h=f60cc2156e00cccbbc135fd4cc3e1d4b63be3fba;hb=d30babc23b4f25be970ada2e63a50220a3672281;hp=846b65d302cbe5197c136ab96f019c88f6392d00;hpb=785cdec4450a1459fdbb90df1344b69be34e0059;p=debian%2Ftar diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4 index 846b65d3..f60cc215 100644 --- a/m4/stdio_h.m4 +++ b/m4/stdio_h.m4 @@ -1,13 +1,65 @@ -# stdio_h.m4 serial 15 -dnl Copyright (C) 2007-2009 Free Software Foundation, Inc. +# stdio_h.m4 serial 46 +dnl Copyright (C) 2007-2015 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. AC_DEFUN([gl_STDIO_H], [ + dnl For __USE_MINGW_ANSI_STDIO + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) - gl_CHECK_NEXT_HEADERS([stdio.h]) + gl_NEXT_HEADERS([stdio.h]) + + dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and + dnl inttypes.h behave like gnu instead of system; we must give our + dnl printf wrapper the right attribute to match. + AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros], + [gl_cv_func_printf_attribute_flavor], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #define __STDC_FORMAT_MACROS 1 + #include + #include + /* For non-mingw systems, compilation will trivially succeed. + For mingw, compilation will succeed for older mingw (system + printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */ + #if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) && \ + (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) + extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1]; + #endif + ]])], [gl_cv_func_printf_attribute_flavor=system], + [gl_cv_func_printf_attribute_flavor=gnu])]) + if test "$gl_cv_func_printf_attribute_flavor" = gnu; then + AC_DEFINE([GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU], [1], + [Define to 1 if printf and friends should be labeled with + attribute "__gnu_printf__" instead of "__printf__"]) + fi + + dnl No need to create extra modules for these functions. Everyone who uses + dnl likely needs them. + GNULIB_FSCANF=1 + gl_MODULE_INDICATOR([fscanf]) + GNULIB_SCANF=1 + gl_MODULE_INDICATOR([scanf]) + GNULIB_FGETC=1 + GNULIB_GETC=1 + GNULIB_GETCHAR=1 + GNULIB_FGETS=1 + GNULIB_FREAD=1 + dnl This ifdef is necessary to avoid an error "missing file lib/stdio-read.c" + dnl "expected source file, required through AC_LIBSOURCES, not found". It is + dnl also an optimization, to avoid performing a configure check whose result + dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING + dnl or GNULIB_NONBLOCKING redundant. + m4_ifdef([gl_NONBLOCKING_IO], [ + gl_NONBLOCKING_IO + if test $gl_cv_have_nonblocking != yes; then + REPLACE_STDIO_READ_FUNCS=1 + AC_LIBOBJ([stdio-read]) + fi + ]) + dnl No need to create extra modules for these functions. Everyone who uses dnl likely needs them. GNULIB_FPRINTF=1 @@ -20,9 +72,11 @@ AC_DEFUN([gl_STDIO_H], GNULIB_FPUTS=1 GNULIB_PUTS=1 GNULIB_FWRITE=1 - dnl This ifdef is just an optimization, to avoid performing a configure - dnl check whose result is not used. It does not make the test of - dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant. + dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c" + dnl "expected source file, required through AC_LIBSOURCES, not found". It is + dnl also an optimization, to avoid performing a configure check whose result + dnl is not used. But it does not make the test of GNULIB_STDIO_H_SIGPIPE or + dnl GNULIB_SIGPIPE redundant. m4_ifdef([gl_SIGNAL_SIGPIPE], [ gl_SIGNAL_SIGPIPE if test $gl_cv_header_signal_h_SIGPIPE != yes; then @@ -30,104 +84,138 @@ AC_DEFUN([gl_STDIO_H], AC_LIBOBJ([stdio-write]) fi ]) + dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c" + dnl "expected source file, required through AC_LIBSOURCES, not found". It is + dnl also an optimization, to avoid performing a configure check whose result + dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING + dnl or GNULIB_NONBLOCKING redundant. + m4_ifdef([gl_NONBLOCKING_IO], [ + gl_NONBLOCKING_IO + if test $gl_cv_have_nonblocking != yes; then + REPLACE_STDIO_WRITE_FUNCS=1 + AC_LIBOBJ([stdio-write]) + fi + ]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use, and which is not + dnl guaranteed by both C89 and C11. + gl_WARN_ON_USE_PREPARE([[#include + ]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen + renameat snprintf tmpfile vdprintf vsnprintf]) ]) AC_DEFUN([gl_STDIO_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_STDIO_H_DEFAULTS]) - GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_STDIO_H_DEFAULTS], [ - GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF]) - GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX]) - GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF]) - GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX]) - GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF]) - GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX]) - GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF]) - GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX]) - GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF]) - GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX]) - GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF]) - GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX]) GNULIB_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF]) - GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF]) - GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF]) - GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF]) - GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX]) + GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE]) + GNULIB_FDOPEN=0; AC_SUBST([GNULIB_FDOPEN]) + GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH]) + GNULIB_FGETC=0; AC_SUBST([GNULIB_FGETC]) + GNULIB_FGETS=0; AC_SUBST([GNULIB_FGETS]) GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN]) + GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF]) + GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX]) + GNULIB_FPURGE=0; AC_SUBST([GNULIB_FPURGE]) + GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC]) + GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS]) + GNULIB_FREAD=0; AC_SUBST([GNULIB_FREAD]) GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN]) + GNULIB_FSCANF=0; AC_SUBST([GNULIB_FSCANF]) GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK]) GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO]) GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL]) GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO]) - GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH]) - GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE]) - GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC]) - GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC]) - GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR]) - GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS]) - GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS]) GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE]) + GNULIB_GETC=0; AC_SUBST([GNULIB_GETC]) + GNULIB_GETCHAR=0; AC_SUBST([GNULIB_GETCHAR]) GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM]) GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE]) + GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF]) + GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX]) + GNULIB_PCLOSE=0; AC_SUBST([GNULIB_PCLOSE]) GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR]) + GNULIB_POPEN=0; AC_SUBST([GNULIB_POPEN]) + GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF]) + GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX]) + GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC]) + GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR]) + GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS]) + GNULIB_REMOVE=0; AC_SUBST([GNULIB_REMOVE]) + GNULIB_RENAME=0; AC_SUBST([GNULIB_RENAME]) + GNULIB_RENAMEAT=0; AC_SUBST([GNULIB_RENAMEAT]) + GNULIB_SCANF=0; AC_SUBST([GNULIB_SCANF]) + GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF]) + GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX]) + GNULIB_STDIO_H_NONBLOCKING=0; AC_SUBST([GNULIB_STDIO_H_NONBLOCKING]) GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE]) + GNULIB_TMPFILE=0; AC_SUBST([GNULIB_TMPFILE]) + GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF]) + GNULIB_VFSCANF=0; AC_SUBST([GNULIB_VFSCANF]) + GNULIB_VSCANF=0; AC_SUBST([GNULIB_VSCANF]) + GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF]) + GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF]) + GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX]) + GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF]) + GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX]) + GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF]) + GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX]) dnl Assume proper GNU behavior unless another module says otherwise. - REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS]) - REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF]) - REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF]) - REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF]) - REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF]) - REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF]) + HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE]) + HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO]) + HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO]) + HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM]) + HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE]) + HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF]) HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF]) - REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF]) HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF]) - REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF]) - REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF]) HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF]) - REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF]) - HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF]) - REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF]) + HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO]) + HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO]) + HAVE_PCLOSE=1; AC_SUBST([HAVE_PCLOSE]) + HAVE_POPEN=1; AC_SUBST([HAVE_POPEN]) + HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT]) HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF]) - REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF]) - HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF]) - REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF]) + HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF]) + REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF]) + REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE]) + REPLACE_FDOPEN=0; AC_SUBST([REPLACE_FDOPEN]) + REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH]) REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN]) + REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF]) + REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE]) REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN]) - HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO]) - REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO]) REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK]) - HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO]) - REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO]) + REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO]) REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL]) - REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH]) - REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE]) - HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM]) - HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE]) + REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO]) + REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM]) REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE]) + REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF]) REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR]) -]) - -dnl Code shared by fseeko and ftello. Determine if large files are supported, -dnl but stdin does not start as a large file by default. -AC_DEFUN([gl_STDIN_LARGE_OFFSET], - [ - AC_CACHE_CHECK([whether stdin defaults to large file offsets], - [gl_cv_var_stdin_large_offset], - [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], -[[#if defined __SL64 && defined __SCLE /* cygwin */ - /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making - fseeko/ftello needlessly fail. This bug was fixed in 1.5.25, and - it is easier to do a version check than building a runtime test. */ -# include -# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25) - choke me -# endif -#endif]])], - [gl_cv_var_stdin_large_offset=yes], - [gl_cv_var_stdin_large_offset=no])]) + REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN]) + REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF]) + REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE]) + REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME]) + REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT]) + REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF]) + REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF]) + REPLACE_STDIO_READ_FUNCS=0; AC_SUBST([REPLACE_STDIO_READ_FUNCS]) + REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS]) + REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE]) + REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF]) + REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF]) + REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF]) + REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF]) + REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF]) + REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF]) ])