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authorPaolo Bonzini <bonzini@gnu.org>2009-09-09 17:05:46 +0000
committerPaolo Bonzini <bonzini@gnu.org>2009-09-09 17:05:46 +0000
commit07c58694fcc67b13355b7f5eb32d456d7c333e2d (patch)
tree7d7b96abde9fa6136170c27361d80c9146eae3d4 /config
parentcfcac11dc826f830a5ca9a7265ad5e2ecd14e92f (diff)
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config:
2009-09-09 Paolo Bonzini <bonzini@gnu.org> * stdint.m4: Store temporary file in $tmp/_GCC_STDINT_H. bfd: 2009-09-09 Paolo Bonzini <bonzini@gnu.org> * configure: Regnerate.
Diffstat (limited to 'config')
-rw-r--r--config/ChangeLog8
-rw-r--r--config/stdint.m4525
2 files changed, 53 insertions, 480 deletions
diff --git a/config/ChangeLog b/config/ChangeLog
index ba8fd00..34cdad5 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,11 @@
+2009-09-09 Paolo Bonzini <bonzini@gnu.org>
+
+ * stdint.m4: Store temporary file in $tmp/_GCC_STDINT_H.
+
+2009-09-08 Paolo Bonzini <bonzini@gnu.org>
+
+ * stdint.m4: Rewrite by using autoconf 2.64 features.
+
2009-09-03 Alexandre Oliva <aoliva@redhat.com>
* bootstrap-debug-big.mk (STAGE2_CFLAGS): Drop -gtoggle.
diff --git a/config/stdint.m4 b/config/stdint.m4
index 025ffad..6c64c58 100644
--- a/config/stdint.m4
+++ b/config/stdint.m4
@@ -1,528 +1,93 @@
-dnl @synopsis GCC_HEADER_STDINT [( HEADER-TO-GENERATE [, HEADERS-TO-CHECK])]
-dnl
-dnl the "ISO C9X: 7.18 Integer types <stdint.h>" section requires the
-dnl existence of an include file <stdint.h> that defines a set of
-dnl typedefs, especially uint8_t,int32_t,uintptr_t.
-dnl Many older installations will not provide this file, but some will
-dnl have the very same definitions in <inttypes.h>. In other enviroments
-dnl we can use the inet-types in <sys/types.h> which would define the
-dnl typedefs int8_t and u_int8_t respectivly.
-dnl
-dnl This macros will create a local "_stdint.h" or the headerfile given as
-dnl an argument. In many cases that file will pick the definition from a
-dnl "#include <stdint.h>" or "#include <inttypes.h>" statement, while
-dnl in other environments it will provide the set of basic 'stdint's defined:
-dnl int8_t,uint8_t,int16_t,uint16_t,int32_t,uint32_t,intptr_t,uintptr_t
-dnl int_least32_t.. int_fast32_t.. intmax_t
-dnl which may or may not rely on the definitions of other files.
-dnl
-dnl Sometimes the stdint.h or inttypes.h headers conflict with sys/types.h,
-dnl so we test the headers together with sys/types.h and always include it
-dnl into the generated header (to match the tests with the generated file).
-dnl Hopefully this is not a big annoyance.
-dnl
-dnl If your installed header files require the stdint-types you will want to
-dnl create an installable file mylib-int.h that all your other installable
-dnl header may include. So, for a library package named "mylib", just use
-dnl GCC_HEADER_STDINT(mylib-int.h)
-dnl in configure.in and install that header file in Makefile.am along with
-dnl the other headers (mylib.h). The mylib-specific headers can simply
-dnl use "#include <mylib-int.h>" to obtain the stdint-types.
-dnl
-dnl Remember, if the system already had a valid <stdint.h>, the generated
-dnl file will include it directly. No need for fuzzy HAVE_STDINT_H things...
-dnl
-dnl @author Guido Draheim <guidod@gmx.de>, Paolo Bonzini <bonzini@gnu.org>
+AC_DEFUN([GCC_STDINT_TYPES],
+[AC_REQUIRE([AC_TYPE_INT8_T])
+AC_REQUIRE([AC_TYPE_INT16_T])
+AC_REQUIRE([AC_TYPE_INT32_T])
+AC_REQUIRE([AC_TYPE_INT64_T])
+AC_REQUIRE([AC_TYPE_INTMAX_T])
+AC_REQUIRE([AC_TYPE_INTPTR_T])
+AC_REQUIRE([AC_TYPE_UINT8_T])
+AC_REQUIRE([AC_TYPE_UINT16_T])
+AC_REQUIRE([AC_TYPE_UINT32_T])
+AC_REQUIRE([AC_TYPE_UINT64_T])
+AC_REQUIRE([AC_TYPE_UINTMAX_T])
+AC_REQUIRE([AC_TYPE_UINTPTR_T])])
AC_DEFUN([GCC_HEADER_STDINT],
-[m4_define(_GCC_STDINT_H, m4_ifval($1, $1, _stdint.h))
+[AC_REQUIRE([GCC_STDINT_TYPES])
+AC_CHECK_TYPES([int_least32_t, int_fast32_t],,,[#include <sys/types.h>
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif])
+
+m4_define([_GCC_STDINT_H], m4_ifval($1, $1, _stdint.h))
+m4_if(m4_bmatch(m4_quote(/_GCC_STDINT_H),
+ /stdint\.h$, bad,
+ /inttypes\.h$, bad, ok), bad,
+ [m4_fatal([cannot overwrite ]m4_quote(_GCC_STDINT_H))])
-inttype_headers=`echo inttypes.h sys/inttypes.h $2 | sed -e 's/,/ /g'`
-
-acx_cv_header_stdint=stddef.h
-acx_cv_header_stdint_kind="(already complete)"
-for i in stdint.h $inttype_headers; do
- unset ac_cv_type_uintptr_t
- unset ac_cv_type_uintmax_t
- unset ac_cv_type_int_least32_t
- unset ac_cv_type_int_fast32_t
- unset ac_cv_type_uint64_t
- _AS_ECHO_N([looking for a compliant stdint.h in $i, ])
- AC_CHECK_TYPE(uintmax_t,[acx_cv_header_stdint=$i],continue,[#include <sys/types.h>
-#include <$i>])
- AC_CHECK_TYPE(uintptr_t,,[acx_cv_header_stdint_kind="(mostly complete)"], [#include <sys/types.h>
-#include <$i>])
- AC_CHECK_TYPE(int_least32_t,,[acx_cv_header_stdint_kind="(mostly complete)"], [#include <sys/types.h>
-#include <$i>])
- AC_CHECK_TYPE(int_fast32_t,,[acx_cv_header_stdint_kind="(mostly complete)"], [#include <sys/types.h>
-#include <$i>])
- AC_CHECK_TYPE(uint64_t,,[acx_cv_header_stdint_kind="(lacks uint64_t)"], [#include <sys/types.h>
-#include <$i>])
- break
-done
-if test "$acx_cv_header_stdint" = stddef.h; then
- acx_cv_header_stdint_kind="(lacks uintmax_t)"
- for i in stdint.h $inttype_headers; do
- unset ac_cv_type_uintptr_t
- unset ac_cv_type_uint32_t
- unset ac_cv_type_uint64_t
- _AS_ECHO_N([looking for an incomplete stdint.h in $i, ])
- AC_CHECK_TYPE(uint32_t,[acx_cv_header_stdint=$i],continue,[#include <sys/types.h>
-#include <$i>])
- AC_CHECK_TYPE(uint64_t,,,[#include <sys/types.h>
-#include <$i>])
- AC_CHECK_TYPE(uintptr_t,,,[#include <sys/types.h>
-#include <$i>])
- break
- done
-fi
-if test "$acx_cv_header_stdint" = stddef.h; then
- acx_cv_header_stdint_kind="(u_intXX_t style)"
- for i in sys/types.h $inttype_headers; do
- unset ac_cv_type_u_int32_t
- unset ac_cv_type_u_int64_t
- _AS_ECHO_N([looking for u_intXX_t types in $i, ])
- AC_CHECK_TYPE(u_int32_t,[acx_cv_header_stdint=$i],continue,[#include <sys/types.h>
-#include <$i>])
- AC_CHECK_TYPE(u_int64_t,,,[#include <sys/types.h>
-#include <$i>])
- break
- done
-fi
-if test "$acx_cv_header_stdint" = stddef.h; then
- acx_cv_header_stdint_kind="(using manual detection)"
-fi
-
-test -z "$ac_cv_type_uintptr_t" && ac_cv_type_uintptr_t=no
-test -z "$ac_cv_type_uint64_t" && ac_cv_type_uint64_t=no
-test -z "$ac_cv_type_u_int64_t" && ac_cv_type_u_int64_t=no
-test -z "$ac_cv_type_int_least32_t" && ac_cv_type_int_least32_t=no
-test -z "$ac_cv_type_int_fast32_t" && ac_cv_type_int_fast32_t=no
-
-# ----------------- Summarize what we found so far
-
-AC_MSG_CHECKING([what to include in _GCC_STDINT_H])
-
-case `AS_BASENAME(_GCC_STDINT_H)` in
- stdint.h) AC_MSG_WARN([are you sure you want it there?]) ;;
- inttypes.h) AC_MSG_WARN([are you sure you want it there?]) ;;
- *) ;;
-esac
-
-AC_MSG_RESULT($acx_cv_header_stdint $acx_cv_header_stdint_kind)
-
-# ----------------- done included file, check C basic types --------
-
-# Lacking an uintptr_t? Test size of void *
-case "$acx_cv_header_stdint:$ac_cv_type_uintptr_t" in
- stddef.h:* | *:no) AC_CHECK_SIZEOF(void *) ;;
-esac
-
-# Lacking an uint64_t? Test size of long
-case "$acx_cv_header_stdint:$ac_cv_type_uint64_t:$ac_cv_type_u_int64_t" in
- stddef.h:*:* | *:no:no) AC_CHECK_SIZEOF(long) ;;
-esac
-
-if test $acx_cv_header_stdint = stddef.h; then
- # Lacking a good header? Test size of everything and deduce all types.
- AC_CHECK_SIZEOF(int)
- AC_CHECK_SIZEOF(short)
- AC_CHECK_SIZEOF(char)
-
- AC_MSG_CHECKING(for type equivalent to int8_t)
- case "$ac_cv_sizeof_char" in
- 1) acx_cv_type_int8_t=char ;;
- *) AC_MSG_ERROR(no 8-bit type, please report a bug)
- esac
- AC_MSG_RESULT($acx_cv_type_int8_t)
-
- AC_MSG_CHECKING(for type equivalent to int16_t)
- case "$ac_cv_sizeof_int:$ac_cv_sizeof_short" in
- 2:*) acx_cv_type_int16_t=int ;;
- *:2) acx_cv_type_int16_t=short ;;
- *) AC_MSG_ERROR(no 16-bit type, please report a bug)
- esac
- AC_MSG_RESULT($acx_cv_type_int16_t)
-
- AC_MSG_CHECKING(for type equivalent to int32_t)
- case "$ac_cv_sizeof_int:$ac_cv_sizeof_long" in
- 4:*) acx_cv_type_int32_t=int ;;
- *:4) acx_cv_type_int32_t=long ;;
- *) AC_MSG_ERROR(no 32-bit type, please report a bug)
- esac
- AC_MSG_RESULT($acx_cv_type_int32_t)
-fi
-
-# These tests are here to make the output prettier
-
-if test "$ac_cv_type_uint64_t" != yes && test "$ac_cv_type_u_int64_t" != yes; then
- case "$ac_cv_sizeof_long" in
- 8) acx_cv_type_int64_t=long ;;
- esac
- AC_MSG_CHECKING(for type equivalent to int64_t)
- AC_MSG_RESULT(${acx_cv_type_int64_t-'using preprocessor symbols'})
-fi
-
-# Now we can use the above types
-
-if test "$ac_cv_type_uintptr_t" != yes; then
- AC_MSG_CHECKING(for type equivalent to intptr_t)
- case $ac_cv_sizeof_void_p in
- 2) acx_cv_type_intptr_t=int16_t ;;
- 4) acx_cv_type_intptr_t=int32_t ;;
- 8) acx_cv_type_intptr_t=int64_t ;;
- *) AC_MSG_ERROR(no equivalent for intptr_t, please report a bug)
- esac
- AC_MSG_RESULT($acx_cv_type_intptr_t)
-fi
-
-# ----------------- done all checks, emit header -------------
AC_CONFIG_COMMANDS(_GCC_STDINT_H, [
-if test "$GCC" = yes; then
- echo "/* generated for " `$CC --version | sed 1q` "*/" > tmp-stdint.h
-else
- echo "/* generated for $CC */" > tmp-stdint.h
-fi
-
-sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- #ifndef GCC_GENERATED_STDINT_H
- #define GCC_GENERATED_STDINT_H 1
-
- #include <sys/types.h>
-EOF
-
-if test "$acx_cv_header_stdint" != stdint.h; then
- echo "#include <stddef.h>" >> tmp-stdint.h
-fi
-if test "$acx_cv_header_stdint" != stddef.h; then
- echo "#include <$acx_cv_header_stdint>" >> tmp-stdint.h
-fi
-
-sed 's/^ *//' >> tmp-stdint.h <<EOF
- /* glibc uses these symbols as guards to prevent redefinitions. */
- #ifdef __int8_t_defined
- #define _INT8_T
- #define _INT16_T
- #define _INT32_T
- #endif
- #ifdef __uint32_t_defined
- #define _UINT32_T
- #endif
-
-EOF
-
-# ----------------- done header, emit basic int types -------------
-if test "$acx_cv_header_stdint" = stddef.h; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- #ifndef _UINT8_T
- #define _UINT8_T
- #ifndef __uint8_t_defined
- #define __uint8_t_defined
- typedef unsigned $acx_cv_type_int8_t uint8_t;
- #endif
- #endif
-
- #ifndef _UINT16_T
- #define _UINT16_T
- #ifndef __uint16_t_defined
- #define __uint16_t_defined
- typedef unsigned $acx_cv_type_int16_t uint16_t;
- #endif
- #endif
-
- #ifndef _UINT32_T
- #define _UINT32_T
- #ifndef __uint32_t_defined
- #define __uint32_t_defined
- typedef unsigned $acx_cv_type_int32_t uint32_t;
- #endif
- #endif
-
- #ifndef _INT8_T
- #define _INT8_T
- #ifndef __int8_t_defined
- #define __int8_t_defined
- typedef $acx_cv_type_int8_t int8_t;
- #endif
- #endif
-
- #ifndef _INT16_T
- #define _INT16_T
- #ifndef __int16_t_defined
- #define __int16_t_defined
- typedef $acx_cv_type_int16_t int16_t;
- #endif
- #endif
-
- #ifndef _INT32_T
- #define _INT32_T
- #ifndef __int32_t_defined
- #define __int32_t_defined
- typedef $acx_cv_type_int32_t int32_t;
- #endif
- #endif
-EOF
-elif test "$ac_cv_type_u_int32_t" = yes; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- /* int8_t int16_t int32_t defined by inet code, we do the u_intXX types */
- #ifndef _INT8_T
- #define _INT8_T
- #endif
- #ifndef _INT16_T
- #define _INT16_T
- #endif
- #ifndef _INT32_T
- #define _INT32_T
- #endif
-
- #ifndef _UINT8_T
- #define _UINT8_T
- #ifndef __uint8_t_defined
- #define __uint8_t_defined
- typedef u_int8_t uint8_t;
- #endif
- #endif
-
- #ifndef _UINT16_T
- #define _UINT16_T
- #ifndef __uint16_t_defined
- #define __uint16_t_defined
- typedef u_int16_t uint16_t;
- #endif
- #endif
-
- #ifndef _UINT32_T
- #define _UINT32_T
- #ifndef __uint32_t_defined
- #define __uint32_t_defined
- typedef u_int32_t uint32_t;
- #endif
- #endif
-EOF
-else
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- /* Some systems have guard macros to prevent redefinitions, define them. */
- #ifndef _INT8_T
- #define _INT8_T
- #endif
- #ifndef _INT16_T
- #define _INT16_T
- #endif
- #ifndef _INT32_T
- #define _INT32_T
- #endif
- #ifndef _UINT8_T
- #define _UINT8_T
- #endif
- #ifndef _UINT16_T
- #define _UINT16_T
- #endif
- #ifndef _UINT32_T
- #define _UINT32_T
- #endif
-EOF
-fi
-
-# ------------- done basic int types, emit int64_t types ------------
-if test "$ac_cv_type_uint64_t" = yes; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- /* system headers have good uint64_t and int64_t */
- #ifndef _INT64_T
- #define _INT64_T
- #endif
- #ifndef _UINT64_T
- #define _UINT64_T
- #endif
-EOF
-elif test "$ac_cv_type_u_int64_t" = yes; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- /* system headers have an u_int64_t (and int64_t) */
- #ifndef _INT64_T
- #define _INT64_T
- #endif
- #ifndef _UINT64_T
- #define _UINT64_T
- #ifndef __uint64_t_defined
- #define __uint64_t_defined
- typedef u_int64_t uint64_t;
- #endif
- #endif
+cat > $tmp/_GCC_STDINT_H <<EOF
+#ifndef GCC_GENERATED_STDINT_H
+#define GCC_GENERATED_STDINT_H 1
+
+#include "config.h"
+#include <sys/types.h>
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
EOF
-elif test -n "$acx_cv_type_int64_t"; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
- /* architecture has a 64-bit type, $acx_cv_type_int64_t */
- #ifndef _INT64_T
- #define _INT64_T
- typedef $acx_cv_type_int64_t int64_t;
- #endif
- #ifndef _UINT64_T
- #define _UINT64_T
- #ifndef __uint64_t_defined
- #define __uint64_t_defined
- typedef unsigned $acx_cv_type_int64_t uint64_t;
- #endif
- #endif
-EOF
-else
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- /* some common heuristics for int64_t, using compiler-specific tests */
- #if defined __STDC_VERSION__ && (__STDC_VERSION__-0) >= 199901L
- #ifndef _INT64_T
- #define _INT64_T
- #ifndef __int64_t_defined
- typedef long long int64_t;
- #endif
- #endif
- #ifndef _UINT64_T
- #define _UINT64_T
- typedef unsigned long long uint64_t;
- #endif
-
- #elif defined __GNUC__ && defined (__STDC__) && __STDC__-0
- /* NextStep 2.0 cc is really gcc 1.93 but it defines __GNUC__ = 2 and
- does not implement __extension__. But that compiler doesn't define
- __GNUC_MINOR__. */
- # if __GNUC__ < 2 || (__NeXT__ && !__GNUC_MINOR__)
- # define __extension__
- # endif
-
- # ifndef _INT64_T
- # define _INT64_T
- __extension__ typedef long long int64_t;
- # endif
- # ifndef _UINT64_T
- # define _UINT64_T
- __extension__ typedef unsigned long long uint64_t;
- # endif
-
- #elif !defined __STRICT_ANSI__
- # if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__
-
- # ifndef _INT64_T
- # define _INT64_T
- typedef __int64 int64_t;
- # endif
- # ifndef _UINT64_T
- # define _UINT64_T
- typedef unsigned __int64 uint64_t;
- # endif
- # endif /* compiler */
-
- #endif /* ANSI version */
-EOF
-fi
-
-# ------------- done int64_t types, emit intptr types ------------
-if test "$ac_cv_type_uintptr_t" != yes; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- /* Define intptr_t based on sizeof(void*) = $ac_cv_sizeof_void_p */
- #ifndef __uintptr_t_defined
- typedef u$acx_cv_type_intptr_t uintptr_t;
- #endif
- #ifndef __intptr_t_defined
- typedef $acx_cv_type_intptr_t intptr_t;
- #endif
-EOF
-fi
-
-# ------------- done intptr types, emit int_least types ------------
if test "$ac_cv_type_int_least32_t" != yes; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
+ sed 's/^ *//' >> $tmp/_GCC_STDINT_H <<EOF
/* Define int_least types */
typedef int8_t int_least8_t;
typedef int16_t int_least16_t;
typedef int32_t int_least32_t;
- #ifdef _INT64_T
typedef int64_t int_least64_t;
- #endif
typedef uint8_t uint_least8_t;
typedef uint16_t uint_least16_t;
typedef uint32_t uint_least32_t;
- #ifdef _UINT64_T
typedef uint64_t uint_least64_t;
- #endif
EOF
fi
-# ------------- done intptr types, emit int_fast types ------------
if test "$ac_cv_type_int_fast32_t" != yes; then
dnl NOTE: The following code assumes that sizeof (int) > 1.
dnl Fix when strange machines are reported.
- sed 's/^ *//' >> tmp-stdint.h <<EOF
+ sed 's/^ *//' >> $tmp/_GCC_STDINT_H <<EOF
/* Define int_fast types. short is often slow */
typedef int8_t int_fast8_t;
typedef int int_fast16_t;
typedef int32_t int_fast32_t;
- #ifdef _INT64_T
typedef int64_t int_fast64_t;
- #endif
typedef uint8_t uint_fast8_t;
typedef unsigned int uint_fast16_t;
typedef uint32_t uint_fast32_t;
- #ifdef _UINT64_T
typedef uint64_t uint_fast64_t;
- #endif
EOF
fi
-if test "$ac_cv_type_uintmax_t" != yes; then
- sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- /* Define intmax based on what we found */
- #ifdef _INT64_T
- typedef int64_t intmax_t;
- #else
- typedef long intmax_t;
- #endif
- #ifdef _UINT64_T
- typedef uint64_t uintmax_t;
- #else
- typedef unsigned long uintmax_t;
- #endif
-EOF
-fi
-
-sed 's/^ *//' >> tmp-stdint.h <<EOF
-
- #endif /* GCC_GENERATED_STDINT_H */
-EOF
+echo '@%:@endif /* GCC_GENERATED_STDINT_H */' >> $tmp/_GCC_STDINT_H
-if test -r ]_GCC_STDINT_H[ && cmp -s tmp-stdint.h ]_GCC_STDINT_H[; then
- rm -f tmp-stdint.h
+if test -r _GCC_STDINT_H && cmp -s $tmp/_GCC_STDINT_H _GCC_STDINT_H; then
+ rm -f $tmp/_GCC_STDINT_H
else
- mv -f tmp-stdint.h ]_GCC_STDINT_H[
+ mv -f $tmp/_GCC_STDINT_H _GCC_STDINT_H
fi
], [
-GCC="$GCC"
-CC="$CC"
-acx_cv_header_stdint="$acx_cv_header_stdint"
-acx_cv_type_int8_t="$acx_cv_type_int8_t"
-acx_cv_type_int16_t="$acx_cv_type_int16_t"
-acx_cv_type_int32_t="$acx_cv_type_int32_t"
-acx_cv_type_int64_t="$acx_cv_type_int64_t"
-acx_cv_type_intptr_t="$acx_cv_type_intptr_t"
-ac_cv_type_uintmax_t="$ac_cv_type_uintmax_t"
-ac_cv_type_uintptr_t="$ac_cv_type_uintptr_t"
-ac_cv_type_uint64_t="$ac_cv_type_uint64_t"
-ac_cv_type_u_int64_t="$ac_cv_type_u_int64_t"
-ac_cv_type_u_int32_t="$ac_cv_type_u_int32_t"
ac_cv_type_int_least32_t="$ac_cv_type_int_least32_t"
ac_cv_type_int_fast32_t="$ac_cv_type_int_fast32_t"
-ac_cv_sizeof_void_p="$ac_cv_sizeof_void_p"
])
])