160 lines
7.6 KiB
Plaintext
160 lines
7.6 KiB
Plaintext
# stdio_h.m4 serial 31
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dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_STDIO_H],
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[
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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AC_REQUIRE([AC_C_INLINE])
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AC_REQUIRE([gl_ASM_SYMBOL_PREFIX])
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gl_CHECK_NEXT_HEADERS([stdio.h])
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dnl No need to create extra modules for these functions. Everyone who uses
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dnl <stdio.h> likely needs them.
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GNULIB_FPRINTF=1
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GNULIB_PRINTF=1
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GNULIB_VFPRINTF=1
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GNULIB_VPRINTF=1
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GNULIB_FPUTC=1
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GNULIB_PUTC=1
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GNULIB_PUTCHAR=1
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GNULIB_FPUTS=1
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GNULIB_PUTS=1
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GNULIB_FWRITE=1
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dnl This ifdef is just an optimization, to avoid performing a configure
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dnl check whose result is not used. It does not make the test of
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dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant.
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m4_ifdef([gl_SIGNAL_SIGPIPE], [
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gl_SIGNAL_SIGPIPE
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if test $gl_cv_header_signal_h_SIGPIPE != yes; then
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REPLACE_STDIO_WRITE_FUNCS=1
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AC_LIBOBJ([stdio-write])
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fi
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])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use, and which is not
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dnl guaranteed by both C89 and C11.
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gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
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]], [dprintf fpurge fseeko ftello getdelim getline gets popen renameat
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snprintf tmpfile vdprintf vsnprintf])
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])
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AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
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[
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dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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AC_DEFUN([gl_STDIO_H_DEFAULTS],
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[
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GNULIB_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF])
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GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE])
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GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH])
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GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN])
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GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF])
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GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX])
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GNULIB_FPURGE=0; AC_SUBST([GNULIB_FPURGE])
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GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC])
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GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS])
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GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN])
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GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK])
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GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO])
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GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL])
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GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO])
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GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE])
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GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM])
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GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE])
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GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF])
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GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
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GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR])
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GNULIB_POPEN=0; AC_SUBST([GNULIB_POPEN])
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GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF])
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GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX])
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GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC])
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GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR])
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GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS])
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GNULIB_REMOVE=0; AC_SUBST([GNULIB_REMOVE])
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GNULIB_RENAME=0; AC_SUBST([GNULIB_RENAME])
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GNULIB_RENAMEAT=0; AC_SUBST([GNULIB_RENAMEAT])
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GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF])
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GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX])
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GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE])
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GNULIB_TMPFILE=0; AC_SUBST([GNULIB_TMPFILE])
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GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF])
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GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF])
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GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF])
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GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX])
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GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF])
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GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX])
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GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF])
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GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX])
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE])
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HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM])
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HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE])
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HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
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HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF])
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HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF])
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HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF])
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HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO])
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HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO])
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HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT])
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HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
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HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF])
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REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF])
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REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE])
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REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH])
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REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN])
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REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF])
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REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE])
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REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN])
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REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK])
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REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
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REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
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REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
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REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM])
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REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE])
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REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF])
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REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR])
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REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN])
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REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF])
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REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE])
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REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME])
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REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT])
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REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF])
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REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF])
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REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
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REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE])
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REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF])
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REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF])
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REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF])
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REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF])
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REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF])
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REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF])
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])
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dnl Code shared by fseeko and ftello. Determine if large files are supported,
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dnl but stdin does not start as a large file by default.
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AC_DEFUN([gl_STDIN_LARGE_OFFSET],
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[
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AC_CACHE_CHECK([whether stdin defaults to large file offsets],
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[gl_cv_var_stdin_large_offset],
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[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]],
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[[#if defined __SL64 && defined __SCLE /* cygwin */
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/* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
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fseeko/ftello needlessly fail. This bug was fixed in 1.5.25, and
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it is easier to do a version check than building a runtime test. */
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# include <cygwin/version.h>
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# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
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choke me
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# endif
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#endif]])],
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[gl_cv_var_stdin_large_offset=yes],
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[gl_cv_var_stdin_large_offset=no])])
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])
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