Edit
thodg/libiconv/m4/stdint.m4
Bruno Haible
- m4/stdint.m4
-
# stdint.m4 serial 6 dnl Copyright (C) 2001-2002, 2004-2006 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. dnl From Bruno Haible. dnl Test whether <stdint.h> is supported or must be substituted. AC_DEFUN([gl_STDINT_H], [ dnl Check for <stdint.h> that doesn't clash with <sys/types.h>. gl_HEADER_STDINT_H if test $gl_cv_header_stdint_h = yes; then ac_cv_header_stdint_h=yes; dnl Hack for gl_FULL_HEADER_PATH. gl_FULL_HEADER_PATH([stdint.h]) FULL_PATH_STDINT_H=$gl_cv_full_path_stdint_h AC_SUBST([FULL_PATH_STDINT_H]) HAVE_STDINT_H=1 else HAVE_STDINT_H=0 fi AC_SUBST([HAVE_STDINT_H]) dnl Check for <inttypes.h> that doesn't clash with <sys/types.h>. gl_HEADER_INTTYPES_H if test $gl_cv_header_inttypes_h = yes; then ac_cv_header_inttypes_h=yes; dnl Hack for gl_FULL_HEADER_PATH. gl_FULL_HEADER_PATH([inttypes.h]) FULL_PATH_INTTYPES_H=$gl_cv_full_path_inttypes_h AC_SUBST([FULL_PATH_INTTYPES_H]) HAVE_INTTYPES_H=1 else HAVE_INTTYPES_H=0 fi AC_SUBST([HAVE_INTTYPES_H]) dnl Check for <sys/inttypes.h>. AC_CHECK_HEADERS([sys/inttypes.h]) if test $ac_cv_header_sys_inttypes_h = yes; then HAVE_SYS_INTTYPES_H=1 else HAVE_SYS_INTTYPES_H=0 fi AC_SUBST([HAVE_SYS_INTTYPES_H]) dnl Check for <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5). AC_CHECK_HEADERS([sys/bitypes.h]) if test $ac_cv_header_sys_bitypes_h = yes; then HAVE_SYS_BITYPES_H=1 else HAVE_SYS_BITYPES_H=0 fi AC_SUBST([HAVE_SYS_BITYPES_H]) dnl Is long == int64_t ? AC_CACHE_CHECK([whether 'long' is 64 bit wide], gl_cv_long_bitsize_64, [ AC_TRY_COMPILE([ #define POW63 ((((((long) 1 << 15) << 15) << 15) << 15) << 3) #define POW64 ((((((long) 1 << 15) << 15) << 15) << 15) << 4) typedef int array [2 * (POW63 != 0 && POW64 == 0) - 1]; ], , gl_cv_long_bitsize_64=yes, gl_cv_long_bitsize_64=no)]) if test $gl_cv_long_bitsize_64 = yes; then HAVE_LONG_64BIT=1 else HAVE_LONG_64BIT=0 fi AC_SUBST(HAVE_LONG_64BIT) dnl Is long long == int64_t ? AC_CACHE_CHECK([whether 'long long' is 64 bit wide], gl_cv_longlong_bitsize_64, [ AC_TRY_COMPILE([ #define POW63 ((((((long long) 1 << 15) << 15) << 15) << 15) << 3) #define POW64 ((((((long long) 1 << 15) << 15) << 15) << 15) << 4) typedef int array [2 * (POW63 != 0 && POW64 == 0) - 1]; ], , gl_cv_longlong_bitsize_64=yes, gl_cv_longlong_bitsize_64=no)]) if test $gl_cv_longlong_bitsize_64 = yes; then HAVE_LONG_LONG_64BIT=1 else HAVE_LONG_LONG_64BIT=0 fi AC_SUBST(HAVE_LONG_LONG_64BIT) dnl Here we use FULL_PATH_INTTYPES_H and FULL_PATH_STDINT_H, not just dnl <inttypes.h> and <stdint.h>, so that it also works during a dnl "config.status --recheck" if an inttypes.h or stdint.h have been dnl created in the build directory. other_includes=' /* Get those types that are already defined in other system include files. */ #if defined(__FreeBSD__) && (__FreeBSD__ >= 3) && (__FreeBSD__ <= 4) # include <sys/inttypes.h> #endif #if defined(__OpenBSD__) # include <sys/types.h> # if HAVE_INTTYPES_H # include FULL_PATH_INTTYPES_H # endif #endif #if defined(__linux__) && HAVE_SYS_BITYPES_H # include <sys/bitypes.h> #endif #if defined(__sun) && HAVE_SYS_INTTYPES_H # include <sys/inttypes.h> #endif #if (defined(__hpux) || defined(_AIX)) && HAVE_INTTYPES_H # include FULL_PATH_INTTYPES_H #endif #if HAVE_STDINT_H # include FULL_PATH_STDINT_H #endif ' gl_STDINT_CHECK_TYPES( [int8_t int16_t int32_t int64_t \ uint8_t uint16_t uint32_t uint64_t \ int_least8_t int_least16_t int_least32_t int_least64_t \ uint_least8_t uint_least16_t uint_least32_t uint_least64_t \ int_fast8_t int_fast16_t int_fast32_t int_fast64_t \ uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t \ intptr_t uintptr_t \ intmax_t uintmax_t], [$other_includes], [gl_cv_type_], [], []) dnl Now see if we need a substitute <stdint.h>. gl_cv_header_working_stdint_h=no if test $gl_cv_header_stdint_h = yes; then gl_STDINT_CHECK_TYPES( [int64_t uint64_t \ int_least64_t uint_least64_t \ int_fast64_t uint_fast64_t], [#include <stdint.h>], [gl_cv_stdint_], [_IN_STDINT_H], [in <stdint.h>]) AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([ #define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */ #include <stdint.h> int8_t a1 = INT8_C (17); int16_t a2 = INT16_C (17); int32_t a3 = INT32_C (17); #if HAVE_INT64_T_IN_STDINT_H int64_t a4 = INT64_C (17); #endif uint8_t b1 = UINT8_C (17); uint16_t b2 = UINT16_C (17); uint32_t b3 = UINT32_C (17); #if HAVE_UINT64_T_IN_STDINT_H uint64_t b4 = UINT64_C (17); #endif int_least8_t c1 = 17; int_least16_t c2 = 17; int_least32_t c3 = 17; #if HAVE_INT_LEAST64_T_IN_STDINT_H int_least64_t c4 = 17; #endif uint_least8_t d1 = 17; uint_least16_t d2 = 17; uint_least32_t d3 = 17; #if HAVE_UINT_LEAST64_T_IN_STDINT_H uint_least64_t d4 = 17; #endif int_fast8_t e1 = 17; int_fast16_t e2 = 17; int_fast32_t e3 = 17; #if HAVE_INT_FAST64_T_IN_STDINT_H int_fast64_t e4 = 17; #endif uint_fast8_t f1 = 17; uint_fast16_t f2 = 17; uint_fast32_t f3 = 17; #if HAVE_UINT_FAST64_T_IN_STDINT_H uint_fast64_t f4 = 17; #endif intptr_t g = 17; uintptr_t h = 17; intmax_t i = INTMAX_C (17); uintmax_t j = UINTMAX_C (17); ])], [gl_cv_header_working_stdint_h=yes]) fi if test $gl_cv_header_working_stdint_h = yes; then dnl Use the existing <stdint.h>, adding missing macro definitions. suff64= suffu64= if test $HAVE_LONG_64BIT = 1; then suff64=L suffu64=UL else if test $HAVE_LONG_LONG_64BIT = 1; then suff64=LL suffu64=ULL else AC_EGREP_CPP([msvc compiler], [ #ifdef _MSC_VER msvc compiler #endif ], [ suff64=i64 suffu64=ui64 ]) fi fi dnl Here we assume a standard architecture where the hardware integer dnl types have 8, 16, 32, optionally 64 bits. gl_STDINT_MISSING_BOUND([INT8_MIN], [-128], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT8_MAX], [127], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([UINT8_MAX], [255], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT16_MIN], [-32768], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT16_MAX], [32767], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([UINT16_MAX], [65535], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT32_MIN], [(~INT32_MAX)], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT32_MAX], [2147483647], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([UINT32_MAX], [4294967295U], [Define if <stdint.h> doesn't define it.]) if test $gl_cv_stdint_int64_t = yes; then gl_STDINT_MISSING_BOUND([INT64_MIN], [(~INT64_MAX)], [Define if <stdint.h> doesn't define it but has the int64_t type.]) gl_STDINT_MISSING_BOUND([INT64_MAX], [9223372036854775807${suff64}], [Define if <stdint.h> doesn't define it but has the int64_t type.]) fi if test $gl_cv_stdint_uint64_t = yes; then gl_STDINT_MISSING_BOUND([UINT64_MAX], [18446744073709551615${suffu64}], [Define if <stdint.h> doesn't define it but has the uint64_t type.]) fi dnl Here we assume a standard architecture where the hardware integer dnl types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types dnl are the same as the corresponding N_t types. gl_STDINT_MISSING_BOUND([INT_LEAST8_MIN], [INT8_MIN], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT_LEAST8_MAX], [INT8_MAX], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([UINT_LEAST8_MAX], [UINT8_MAX], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT_LEAST16_MIN], [INT16_MIN], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT_LEAST16_MAX], [INT16_MAX], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([UINT_LEAST16_MAX], [UINT16_MAX], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT_LEAST32_MIN], [INT32_MIN], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([INT_LEAST32_MAX], [INT32_MAX], [Define if <stdint.h> doesn't define it.]) gl_STDINT_MISSING_BOUND([UINT_LEAST32_MAX], [UINT32_MAX], [Define if <stdint.h> doesn't define it.]) if test $gl_cv_stdint_int_least64_t = yes; then gl_STDINT_MISSING_BOUND([INT_LEAST64_MIN], [INT64_MIN], [Define if <stdint.h> doesn't define it but has the int_least64_t type.]) gl_STDINT_MISSING_BOUND([INT_LEAST64_MAX], [INT64_MAX], [Define if <stdint.h> doesn't define it but has the int_least64_t type.]) fi if test $gl_cv_stdint_uint_least64_t = yes; then gl_STDINT_MISSING_BOUND([UINT_LEAST64_MAX], [UINT64_MAX], [Define if <stdint.h> doesn't define it but has the uint_least64_t type.]) fi dnl Here we assume a standard architecture where the hardware integer dnl types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types dnl are taken from the same list of types. gl_STDINT_MISSING_BOUNDS([INT_FAST8_MIN INT_FAST8_MAX UINT_FAST8_MAX \ INT_FAST16_MIN INT_FAST16_MAX UINT_FAST16_MAX \ INT_FAST32_MIN INT_FAST32_MAX UINT_FAST32_MAX]) if test $gl_cv_stdint_uint_fast64_t = yes; then gl_STDINT_MISSING_BOUNDS([INT_FAST64_MIN INT_FAST64_MAX]) fi if test $gl_cv_stdint_uint_fast64_t = yes; then gl_STDINT_MISSING_BOUNDS([UINT_FAST64_MAX]) fi gl_STDINT_MISSING_BOUNDS([INTPTR_MIN INTPTR_MAX UINTPTR_MAX \ INTMAX_MIN INTMAX_MAX UINTMAX_MAX]) gl_STDINT_MISSING_BOUNDS([PTRDIFF_MIN PTRDIFF_MAX], [#include <stddef.h>]) gl_SIZE_MAX gl_STDINT_MISSING_BOUNDS2([SIG_ATOMIC_MIN SIG_ATOMIC_MAX], [#include <signal.h>]) dnl Don't bother defining WCHAR_MIN and WCHAR_MAX, since they should dnl already be defined in <stddef.h>. dnl For wint_t we need <wchar.h>. dnl Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included dnl before <wchar.h>. dnl BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before dnl <wchar.h>. gl_STDINT_MISSING_BOUNDS2([WINT_MIN WINT_MAX], [ #include <stdio.h> #include <time.h> #include <wchar.h> ]) STDINT_H='' else gl_STDINT_BITSIZEOF( [int8_t int16_t int32_t int64_t \ uint8_t uint16_t uint32_t uint64_t \ int_least8_t int_least16_t int_least32_t int_least64_t \ uint_least8_t uint_least16_t uint_least32_t uint_least64_t \ int_fast8_t int_fast16_t int_fast32_t int_fast64_t \ uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t \ intptr_t uintptr_t \ intmax_t uintmax_t], [$other_includes]) gl_cv_type_unsigned_int=yes gl_cv_type_long=yes gl_cv_type_unsigned_long=yes gl_STDINT_BITSIZEOF([unsigned_int long unsigned_long], [typedef unsigned int unsigned_int; typedef unsigned long unsigned_long;]) AC_CHECK_TYPES([ptrdiff_t]) gl_cv_type_ptrdiff_t=$ac_cv_type_ptrdiff_t AC_REQUIRE([AC_TYPE_SIZE_T]) gl_cv_type_size_t=yes gl_STDINT_BITSIZEOF([ptrdiff_t size_t], [#include <stddef.h>]) gl_CHECK_TYPE_SAME([ptrdiff_t], [long], [#include <stddef.h>]) gl_CHECK_TYPE_SAME([size_t], [unsigned long], [#include <stddef.h>]) AC_CHECK_TYPES([sig_atomic_t], , , [#include <signal.h>]) gl_cv_type_sig_atomic_t=$ac_cv_type_sig_atomic_t gl_STDINT_BITSIZEOF([sig_atomic_t], [#include <signal.h>]) gl_CHECK_TYPES_SIGNED([sig_atomic_t], [#include <signal.h>]) if test $HAVE_SIGNED_SIG_ATOMIC_T = 1; then gl_CHECK_TYPE_SAME([sig_atomic_t], [long], [#include <signal.h>]) else gl_CHECK_TYPE_SAME([sig_atomic_t], [unsigned long], [#include <signal.h>]) fi AC_REQUIRE([gt_TYPE_WCHAR_T]) gl_cv_type_wchar_t=$gt_cv_c_wchar_t gl_STDINT_BITSIZEOF([wchar_t], [#include <stddef.h>]) gl_CHECK_TYPES_SIGNED([wchar_t], [#include <stddef.h>]) if test $HAVE_SIGNED_WCHAR_T = 1; then gl_CHECK_TYPE_SAME([wchar_t], [long], [#include <stddef.h>]) else gl_CHECK_TYPE_SAME([wchar_t], [unsigned long], [#include <stddef.h>]) fi dnl For wint_t we need <wchar.h>. dnl Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included dnl before <wchar.h>. dnl BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before dnl <wchar.h>. AC_CHECK_TYPES([wint_t], , , [#include <stdio.h> #include <time.h> #include <wchar.h> ]) gl_cv_type_wint_t=$ac_cv_type_wint_t gl_STDINT_BITSIZEOF([wint_t], [#include <stdio.h> #include <time.h> #include <wchar.h> ]) gl_CHECK_TYPES_SIGNED([wint_t], [#include <stdio.h> #include <time.h> #include <wchar.h> ]) if test $HAVE_SIGNED_WINT_T = 1; then gl_CHECK_TYPE_SAME([wint_t], [long], [#include <stdio.h> #include <time.h> #include <wchar.h> ]) else gl_CHECK_TYPE_SAME([wint_t], [unsigned long], [#include <stdio.h> #include <time.h> #include <wchar.h> ]) fi STDINT_H='stdint.h' fi AC_SUBST(STDINT_H) ]) dnl Set gl_cv_header_stdint_h to yes and define HAVE_STDINT_H if dnl <stdint.h> exists and doesn't clash with <sys/types.h>. AC_DEFUN([gl_HEADER_STDINT_H], [ dnl Check for <stdint.h> that doesn't clash with <sys/types.h>. AC_CACHE_CHECK([for stdint.h], gl_cv_header_stdint_h, [ AC_TRY_COMPILE([ #include <sys/types.h> #include <stdint.h>], [], gl_cv_header_stdint_h=yes, gl_cv_header_stdint_h=no) ]) if test $gl_cv_header_stdint_h = yes; then AC_DEFINE_UNQUOTED(HAVE_STDINT_H, 1, [Define if <stdint.h> exists and doesn't clash with <sys/types.h>.]) fi ]) dnl Set gl_cv_header_inttypes_h to yes and define HAVE_INTTYPES_H if dnl <inttypes.h> exists and doesn't clash with <sys/types.h>. AC_DEFUN([gl_HEADER_INTTYPES_H], [ dnl Check for <inttypes.h> that doesn't clash with <sys/types.h>. dnl On IRIX 5.3, <inttypes.h> conflicts with <sys/types.h>. AC_CACHE_CHECK([for inttypes.h], gl_cv_header_inttypes_h, [ AC_TRY_COMPILE([ #include <sys/types.h> #include <inttypes.h>], [], gl_cv_header_inttypes_h=yes, gl_cv_header_inttypes_h=no) ]) if test $gl_cv_header_inttypes_h = yes; then AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H, 1, [Define if <inttypes.h> exists and doesn't clash with <sys/types.h>.]) fi ]) dnl gl_STDINT_CHECK_TYPES(TYPES, INCLUDES, CACHE_VAR_PREFIX, MACRO_SUFFIX, DESCRIPTION_SUFFIX) dnl Check each of the given types, whether they are defined in the given dnl include files. AC_DEFUN([gl_STDINT_CHECK_TYPES], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in, dnl - extra AC_SUBST calls, so that the right substitutions are made. AC_FOREACH([gltype], [$1], [AH_TEMPLATE([HAVE_]translit(gltype,[abcdefghijklmnopqrstuvwxyz],[ABCDEFGHIJKLMNOPQRSTUVWXYZ])[$4], [Define to 1 if the type ']gltype[' is already defined$5.])]) for gltype in $1 ; do AC_MSG_CHECKING([for $gltype]) AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([$2 /* Test if the type exists. */ $gltype x = 17; ])], result=yes, result=no) eval $3${gltype}=\$result AC_MSG_RESULT($result) GLTYPE=`echo "$gltype" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` if test $result = yes; then AC_DEFINE_UNQUOTED([HAVE_${GLTYPE}$4], 1) eval HAVE_${GLTYPE}$4=1 else eval HAVE_${GLTYPE}$4=0 fi done AC_FOREACH([gltype], [$1], [AC_SUBST([HAVE_]translit(gltype,[abcdefghijklmnopqrstuvwxyz],[ABCDEFGHIJKLMNOPQRSTUVWXYZ])[$4])]) ]) dnl gl_STDINT_MISSING_BOUND(TYPE_BOUND, DEFAULT, DESCRIPTION) dnl assumes an otherwise complete <stdint.h> and defines TYPE_BOUND if dnl <stdint.h> doesn't define it. AC_DEFUN([gl_STDINT_MISSING_BOUND], [ AC_CACHE_CHECK([for $1], [gl_cv_stdint_$1], [AC_EGREP_CPP([found it], [#include <stdint.h> #ifdef $1 found it #endif ], [gl_cv_stdint_$1=yes], [gl_cv_stdint_$1="$2"])]) if test "$gl_cv_stdint_$1" != yes; then AC_DEFINE_UNQUOTED([$1], [$2], [$3]) fi ]) dnl gl_STDINT_MISSING_BOUNDS(BOUNDS, INCLUDES) dnl assumes an otherwise complete <stdint.h> and defines each element of BOUNDS dnl if <stdint.h> doesn't define it. dnl Use this for types whose signedness is determined by the first letter dnl ('u' or not). AC_DEFUN([gl_STDINT_MISSING_BOUNDS], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in. AC_FOREACH([bound], [$1], [AH_TEMPLATE(bound, [Define if <stdint.h> doesn't define it.])]) changequote(,)dnl sed_unsigned='s,^\(U*\).*,\1,' sed_limitkind='s,^.*\(_[^_]*\)$,\1,' changequote([,])dnl for bound in $1; do type=`echo $bound | sed -e 's,_MAX,_t,' -e 's,_MIN,_t,' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` unsigned=`echo $bound | sed -e "$sed_unsigned" | tr U u` width=`echo $bound | sed -e 's,^U*INT,,' -e 's,_MIN,,' -e 's,_MAX,,'` limitkind=`echo $bound | sed -e "$sed_limitkind"` AC_CACHE_CHECK([for $bound], [gl_cv_stdint_$bound], [AC_EGREP_CPP([found it], [#include <stdint.h> #ifdef $bound found it #endif ], [eval gl_cv_stdint_$bound=yes], [result= case $width in *8) widthlist="8 16 32 64" ;; *16) widthlist="16 32 64" ;; *32 | PTR | MAX | PTRDIFF) widthlist="32 64" ;; *64) widthlist="64" ;; esac for w in $widthlist; do if test -z "$result"; then AC_COMPILE_IFELSE([[$2 #include <stdint.h> int verify[2 * (sizeof ($type) == sizeof (${unsigned}int${w}_t)) - 1]; ]], [result=`echo "$unsigned" | tr u U`INT${w}${limitkind}]) else break fi done if test -z "$result"; then result=no fi eval gl_cv_stdint_$bound=\$result ])]) eval result=\$gl_cv_stdint_$bound if test "$result" != yes && test "$result" != no; then AC_DEFINE_UNQUOTED([$bound], [$result], [Define if <stdint.h> doesn't define it.]) fi done ]) dnl gl_STDINT_MISSING_BOUNDS2(BOUNDS, INCLUDES) dnl assumes an otherwise complete <stdint.h> and defines each element of BOUNDS dnl if <stdint.h> doesn't define it. dnl Use this for types whose signedness is a priori unknown. AC_DEFUN([gl_STDINT_MISSING_BOUNDS2], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in. AC_FOREACH([bound], [$1], [AH_TEMPLATE(bound, [Define if <stdint.h> doesn't define it.])]) changequote(,)dnl sed_limitkind='s,^.*\(_[^_]*\)$,\1,' changequote([,])dnl for bound in $1; do type=`echo $bound | sed -e 's,_MAX,_t,' -e 's,_MIN,_t,' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` limitkind=`echo $bound | sed -e "$sed_limitkind"` AC_CACHE_CHECK([for $bound], [gl_cv_stdint_$bound], [AC_EGREP_CPP([found it], [#include <stdint.h> #ifdef $bound found it #endif ], [eval gl_cv_stdint_$bound=yes], [result= AC_COMPILE_IFELSE([[$2 int verify[2 * (($type) -1 >= ($type) 0) - 1]; ]], [eval gl_cv_${type}_signed=no], [eval gl_cv_${type}_signed=yes]) if eval test \$gl_cv_${type}_signed = yes; then for w in 8 16 32 64; do if test -z "$result"; then AC_COMPILE_IFELSE([[$2 #include <stdint.h> int verify[2 * (sizeof ($type) == sizeof (int${w}_t)) - 1]; ]], [result=INT${w}${limitkind}]) else break fi done else if test ${limitkind} = _MIN; then result=0 else for w in 8 16 32 64; do if test -z "$result"; then AC_COMPILE_IFELSE([[$2 #include <stdint.h> int verify[2 * (sizeof ($type) == sizeof (uint${w}_t)) - 1]; ]], [result=UINT${w}${limitkind}]) else break fi done fi fi if test -z "$result"; then result=no fi eval gl_cv_stdint_$bound=\$result ])]) eval result=\$gl_cv_stdint_$bound if test "$result" != yes && test "$result" != no; then AC_DEFINE_UNQUOTED([$bound], [$result], [Define if <stdint.h> doesn't define it.]) fi done ]) dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) dnl Determine the size of each of the given types in bits. AC_DEFUN([gl_STDINT_BITSIZEOF], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in, dnl - extra AC_SUBST calls, so that the right substitutions are made. AC_FOREACH([gltype], [$1], [AH_TEMPLATE([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), [Define to the number of bits in type ']gltype['.])]) for gltype in $1 ; do if eval test \$gl_cv_type_${gltype} = yes; then AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}], [_AC_COMPUTE_INT([sizeof ($gltype) * CHAR_BIT], result, [$2 #include <limits.h>], result=unknown) eval gl_cv_bitsizeof_${gltype}=\$result ]) eval result=\$gl_cv_bitsizeof_${gltype} GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result]) eval BITSIZEOF_${GLTYPE}=\$result fi done AC_FOREACH([gltype], [$1], [AC_SUBST([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES) dnl Determine the signedness of each of the given types. dnl Define HAVE_SIGNED_TYPE if type is signed. AC_DEFUN([gl_CHECK_TYPES_SIGNED], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in, dnl - extra AC_SUBST calls, so that the right substitutions are made. AC_FOREACH([gltype], [$1], [AH_TEMPLATE([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), [Define to 1 if ']gltype[' is a signed integer type.])]) for gltype in $1 ; do AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[$2 int verify[2 * (($1) -1 < ($1) 0) - 1]; ]])], result=yes, result=no) eval gl_cv_type_${gltype}_signed=\$result ]) eval result=\$gl_cv_type_${gltype}_signed GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` if test "$result" = yes; then AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], 1) eval HAVE_SIGNED_${GLTYPE}=1 else eval HAVE_SIGNED_${GLTYPE}=0 fi done AC_FOREACH([gltype], [$1], [AC_SUBST([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) dnl gl_CHECK_TYPE_SAME(TYPE, KNOWNTYPE, INCLUDES) dnl Determines whether two types are the same. AC_DEFUN([gl_CHECK_TYPE_SAME], [ AC_TRY_COMPILE([$3 extern $1 foo; extern $2 foo;], [], [SAME_TYPE_]AS_TR_CPP([$1])[_]AS_TR_CPP([$2])[=1], [SAME_TYPE_]AS_TR_CPP([$1])[_]AS_TR_CPP([$2])[=0]) AC_SUBST([SAME_TYPE_]AS_TR_CPP([$1])[_]AS_TR_CPP([$2])) ])