# stdio_h.m4 serial 31 dnl Copyright (C) 2007-2010 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], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([AC_C_INLINE]) AC_REQUIRE([gl_ASM_SYMBOL_PREFIX]) gl_CHECK_NEXT_HEADERS([stdio.h]) dnl No need to create extra modules for these functions. Everyone who uses dnl likely needs them. GNULIB_FPRINTF=1 GNULIB_PRINTF=1 GNULIB_VFPRINTF=1 GNULIB_VPRINTF=1 GNULIB_FPUTC=1 GNULIB_PUTC=1 GNULIB_PUTCHAR=1 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. m4_ifdef([gl_SIGNAL_SIGPIPE], [ gl_SIGNAL_SIGPIPE if test $gl_cv_header_signal_h_SIGPIPE != 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 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]) 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_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF]) GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE]) GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH]) 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_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN]) 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_FWRITE=0; AC_SUBST([GNULIB_FWRITE]) 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_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_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF]) GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX]) 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_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. HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE]) 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]) HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF]) HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF]) HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO]) HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO]) HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT]) HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF]) HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF]) REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF]) REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE]) 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]) REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK]) REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO]) REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL]) 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]) 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_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]) ]) 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])]) ])