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Individual autoconf function broken out of acincludes.m4. This change

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per the recommended style guide for autoconf and so that individual
autoconf functions can more easily be shared across projects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16223 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-09-07 06:56:14 +00:00
parent 10c0a2e7f9
commit 491f6812ef
15 changed files with 435 additions and 0 deletions
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18
autoconf/m4/bison.m4 Normal file
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#
# Check for Bison.
#
# This macro verifies that Bison is installed. If successful, then
# 1) YACC is set to bison -y (to emulate YACC calls)
# 2) BISON is set to bison
#
AC_DEFUN([AC_PROG_BISON],
[AC_CACHE_CHECK(,
ac_cv_has_bison,
[AC_PROG_YACC()
])
if test "$YACC" != "bison -y"; then
AC_MSG_ERROR([bison not found but required])
else
AC_SUBST(BISON,[bison],[location of bison])
fi
])

31
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#
# Determine if the printf() functions have the %a format character.
# This is modified from:
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_slist.html
AC_DEFUN([AC_C_PRINTF_A],
[
AC_MSG_CHECKING([for printf %a format specifier])
AC_LANG_SAVE
AC_LANG_C
AC_RUN_IFELSE(
AC_LANG_PROGRAM([#include <stdio.h>
#include <stdlib.h>],
[[[
volatile double A, B;
char Buffer[100];
A = 1;
A /= 10.0;
sprintf(Buffer, "%a", A);
B = atof(Buffer);
if (A != B)
return (1);
if (A != 0x1.999999999999ap-4)
return (1);
return (0);]]]),
ac_c_printf_a=yes,ac_c_printf_a=no)
AC_LANG_RESTORE
AC_MSG_RESULT($ac_c_printf_a)
if test "$ac_c_printf_a" = "yes"; then
AC_DEFINE([HAVE_PRINTF_A],[1],[Define to have the %a format string])
fi
])

25
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#
# Check for GNU Make. This is from
# http://www.gnu.org/software/ac-archive/htmldoc/check_gnu_make.html
#
AC_DEFUN([AC_CHECK_GNU_MAKE],
[ AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
_cv_gnu_make_command='' ;
dnl Search all the common names for GNU make
for a in "$MAKE" make gmake gnumake ; do
if test -z "$a" ; then continue ; fi ;
if ( sh -c "$a --version" 2> /dev/null | grep GNU 2>&1 > /dev/null ) ; then
_cv_gnu_make_command=$a ;
break;
fi
done ;
) ;
dnl If there was a GNU version, then set @ifGNUmake@ to the empty string, '#' otherwise
if test "x$_cv_gnu_make_command" != "x" ; then
ifGNUmake='' ;
else
ifGNUmake='#' ;
AC_MSG_RESULT("Not found");
fi
AC_SUBST(ifGNUmake)
])

7
autoconf/m4/config_makefile.m4 Normal file
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#
# Configure a Makefile without clobbering it if it exists and is not out of
# date. This macro is unique to LLVM.
#
AC_DEFUN([AC_CONFIG_MAKEFILE],
[AC_CONFIG_COMMANDS($1,${SHELL} ${srcdir}/autoconf/install-sh -c ${srcdir}/$1 $1,${srcdir}/autoconf/mkinstalldirs `dirname $1`)
])

23
autoconf/m4/cxx_bidi_iterator.m4 Normal file
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#
# Check for bidirectional iterator extension. This is modified from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
#
AC_DEFUN([AC_CXX_HAVE_BI_ITERATOR],
[AC_CACHE_CHECK(whether the compiler has the bidirectional iterator,
ac_cv_cxx_have_bi_iterator,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <iterator>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif],[bidirectional_iterator<int,int> t; return 0;],
ac_cv_cxx_have_bi_iterator=yes, ac_cv_cxx_have_bi_iterator=no)
AC_LANG_RESTORE
])
HAVE_BI_ITERATOR=0
if test "$ac_cv_cxx_have_bi_iterator" = yes
then
HAVE_BI_ITERATOR=1
fi
AC_SUBST(HAVE_BI_ITERATOR)])

23
autoconf/m4/cxx_fwd_iterator.m4 Normal file
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# Check for forward iterator extension. This is modified from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
AC_DEFUN([AC_CXX_HAVE_FWD_ITERATOR],
[AC_CACHE_CHECK(whether the compiler has forward iterators,
ac_cv_cxx_have_fwd_iterator,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <iterator>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif],[forward_iterator<int,int> t; return 0;],
ac_cv_cxx_have_fwd_iterator=yes, ac_cv_cxx_have_fwd_iterator=no)
AC_LANG_RESTORE
])
HAVE_FWD_ITERATOR=0
if test "$ac_cv_cxx_have_fwd_iterator" = yes
then
HAVE_FWD_ITERATOR=1
fi
AC_SUBST(HAVE_FWD_ITERATOR)])

62
autoconf/m4/cxx_hash_map.m4 Normal file
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# Check for hash_map extension. This is from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_map.html
AC_DEFUN([AC_CXX_HAVE_STD_EXT_HASH_MAP],
[AC_CACHE_CHECK([whether the compiler has <ext/hash_map> defining template class std::hash_map],
ac_cv_cxx_have_std_ext_hash_map,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <ext/hash_map>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif],[hash_map<int, int> t;],
[ac_cv_cxx_have_std_ext_hash_map=yes], [ac_cv_cxx_have_std_ext_hash_map=no])
AC_LANG_RESTORE])
HAVE_STD_EXT_HASH_MAP=0
if test "$ac_cv_cxx_have_std_ext_hash_map" = yes
then
HAVE_STD_EXT_HASH_MAP=1
fi
AC_SUBST(HAVE_STD_EXT_HASH_MAP)])
AC_DEFUN([AC_CXX_HAVE_GNU_EXT_HASH_MAP],
[AC_CACHE_CHECK([whether the compiler has <ext/hash_map> defining template class __gnu_cxx::hash_map],
ac_cv_cxx_have_gnu_ext_hash_map,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <ext/hash_map>
#ifdef HAVE_NAMESPACES
using namespace __gnu_cxx;
#endif],[hash_map<int,int> t; ],
[ac_cv_cxx_have_gnu_ext_hash_map=yes],[ac_cv_cxx_have_gnu_ext_hash_map=no])
AC_LANG_RESTORE])
HAVE_GNU_EXT_HASH_MAP=0
if test "$ac_cv_cxx_have_gnu_ext_hash_map" = yes
then
HAVE_GNU_EXT_HASH_MAP=1
fi
AC_SUBST(HAVE_GNU_EXT_HASH_MAP)])
AC_DEFUN([AC_CXX_HAVE_GLOBAL_HASH_MAP],
[AC_CACHE_CHECK([whether the compiler has <hash_map> defining template class ::hash_map],
ac_cv_cxx_have_global_hash_map,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <hash_map>],[hash_map<int,int> t; ],
[ac_cv_cxx_have_global_hash_map=yes], [ac_cv_cxx_have_global_hash_map=no])
AC_LANG_RESTORE])
HAVE_GLOBAL_HASH_MAP=0
if test "$ac_cv_cxx_have_global_hash_map" = yes
then
HAVE_GLOBAL_HASH_MAP=1
fi
AC_SUBST(HAVE_GLOBAL_HASH_MAP)])
AC_DEFUN([AC_CXX_HAVE_HASH_MAP],
[AC_CXX_HAVE_STD_EXT_HASH_MAP
AC_CXX_HAVE_GNU_EXT_HASH_MAP
AC_CXX_HAVE_GLOBAL_HASH_MAP])

63
autoconf/m4/cxx_hash_set.m4 Normal file
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# Check for hash_set extension. This is modified from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
AC_DEFUN([AC_CXX_HAVE_STD_EXT_HASH_SET],
[AC_CACHE_CHECK([whether the compiler has <ext/hash_set> defining template class std::hash_set],
ac_cv_cxx_have_std_ext_hash_set,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <ext/hash_set>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif],[hash_set<int> t; ],
[ac_cv_cxx_have_std_ext_hash_set=yes], [ac_cv_cxx_have_std_ext_hash_set=no])
AC_LANG_RESTORE])
HAVE_STD_EXT_HASH_SET=0
if test "$ac_cv_cxx_have_std_ext_hash_set" = yes
then
HAVE_STD_EXT_HASH_SET=1
fi
AC_SUBST(HAVE_STD_EXT_HASH_SET)])
AC_DEFUN([AC_CXX_HAVE_GNU_EXT_HASH_SET],
[AC_CACHE_CHECK(
[whether the compiler has <ext/hash_set> defining template class __gnu_cxx::hash_set],
ac_cv_cxx_have_gnu_ext_hash_set,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <ext/hash_set>
#ifdef HAVE_NAMESPACES
using namespace __gnu_cxx;
#endif],[hash_set<int> t; ],
[ac_cv_cxx_have_gnu_ext_hash_set=yes], [ac_cv_cxx_have_gnu_ext_hash_set=no])
AC_LANG_RESTORE])
HAVE_GNU_EXT_HASH_SET=0
if test "$ac_cv_cxx_have_gnu_ext_hash_set" = yes
then
HAVE_GNU_EXT_HASH_SET=1
fi
AC_SUBST(HAVE_GNU_EXT_HASH_SET)])
AC_DEFUN([AC_CXX_HAVE_GLOBAL_HASH_SET],
[AC_CACHE_CHECK([whether the compiler has <hash_set> defining template class ::hash_set],
ac_cv_cxx_have_global_hash_set,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <hash_set>],[hash_set<int> t; return 0;],
[ac_cv_cxx_have_global_hash_set=yes], [ac_cv_cxx_have_global_hash_set=no])
AC_LANG_RESTORE])
HAVE_GLOBAL_HASH_SET=0
if test "$ac_cv_cxx_have_global_hash_set" = yes
then
HAVE_GLOBAL_HASH_SET=1
fi
AC_SUBST(HAVE_GLOBAL_HASH_SET)])
AC_DEFUN([AC_CXX_HAVE_HASH_SET],
[AC_CXX_HAVE_STD_EXT_HASH_SET
AC_CXX_HAVE_GNU_EXT_HASH_SET
AC_CXX_HAVE_GLOBAL_HASH_SET])

18
autoconf/m4/cxx_namespaces.m4 Normal file
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# Check for C++ namespace support. This is from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_namespaces.html
#
AC_DEFUN([AC_CXX_NAMESPACES],
[AC_CACHE_CHECK(whether the compiler implements namespaces,
ac_cv_cxx_namespaces,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([namespace Outer { namespace Inner { int i = 0; }}],
[using namespace Outer::Inner; return i;],
ac_cv_cxx_namespaces=yes, ac_cv_cxx_namespaces=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_namespaces" = yes; then
AC_DEFINE(HAVE_NAMESPACES,,[define if the compiler implements namespaces])
fi
])

23
autoconf/m4/cxx_std_iterator.m4 Normal file
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# Check for standard iterator extension. This is modified from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
AC_DEFUN([AC_CXX_HAVE_STD_ITERATOR],
[AC_CACHE_CHECK(whether the compiler has the standard iterator,
ac_cv_cxx_have_std_iterator,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <iterator>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif],[iterator<int,int,int> t; return 0;],
ac_cv_cxx_have_std_iterator=yes, ac_cv_cxx_have_std_iterator=no)
AC_LANG_RESTORE
])
HAVE_STD_ITERATOR=0
if test "$ac_cv_cxx_have_std_iterator" = yes
then
HAVE_STD_ITERATOR=1
fi
AC_SUBST(HAVE_STD_ITERATOR)])

17
autoconf/m4/flex.m4 Normal file
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#
# Check for FLEX.
#
# This macro verifies that flex is installed. If successful, then
# 1) $LEX is set to "flex" (to emulate lex calls)
# 2) BISON is set to bison
AC_DEFUN([AC_PROG_FLEX],
[AC_CACHE_CHECK(,
ac_cv_has_flex,
[AC_PROG_LEX()
])
if test "$LEX" != "flex"; then
AC_MSG_ERROR([flex not found but required])
else
AC_SUBST(FLEX,[flex],[location of flex])
fi
])

32
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#
# Check for the ability to mmap a file.
#
AC_DEFUN([AC_FUNC_MMAP_FILE],
[AC_CACHE_CHECK(for mmap of files,
ac_cv_func_mmap_file,
[AC_LANG_SAVE
AC_LANG_C
AC_TRY_RUN([
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
int fd;
int main () {
fd = creat ("foo",0777); fd = (int) mmap (0, 1, PROT_READ, MAP_SHARED, fd, 0); unlink ("foo"); return (fd != (int) MAP_FAILED);}],
ac_cv_func_mmap_file=yes, ac_cv_func_mmap_file=no)
AC_LANG_RESTORE
])
if test "$ac_cv_func_mmap_file" = yes; then
AC_DEFINE([HAVE_MMAP_FILE],[],[Define if mmap() can map files into memory])
AC_SUBST(MMAP_FILE,[yes])
fi
])

22
autoconf/m4/header_mmap_anonymous.m4 Normal file
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#
# Check for anonymous mmap macros. This is modified from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_slist.html
#
AC_DEFUN([AC_HEADER_MMAP_ANONYMOUS],
[AC_CACHE_CHECK(for MAP_ANONYMOUS vs. MAP_ANON,
ac_cv_header_mmap_anon,
[AC_LANG_SAVE
AC_LANG_C
AC_TRY_COMPILE([#include <sys/mman.h>
#include <unistd.h>
#include <fcntl.h>],
[mmap (0, 1, PROT_READ, MAP_ANONYMOUS, -1, 0); return (0);],
ac_cv_header_mmap_anon=yes, ac_cv_header_mmap_anon=no)
AC_LANG_RESTORE
])
if test "$ac_cv_header_mmap_anon" = yes; then
AC_DEFINE([HAVE_MMAP_ANONYMOUS],[],[Define if mmap() uses MAP_ANONYMOUS to map anonymous pages, or undefine if it uses MAP_ANON])
fi
])

23
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#
# Determine if the system can handle the -R option being passed to the linker.
#
# This macro is specific to LLVM.
#
AC_DEFUN([AC_LINK_USE_R],
[
AC_MSG_CHECKING([for compiler -Wl,-R<path> option])
AC_LANG_SAVE
AC_LANG_C
oldcflags="$CFLAGS"
CFLAGS="$CFLAGS -Wl,-R."
AC_LINK_IFELSE([int main() { return 0; }],[ac_cv_link_use_r=yes],[ac_cv_link_use_r=no])
CFLAGS="$oldcflags"
AC_LANG_RESTORE
AC_MSG_RESULT($ac_cv_link_use_r)
if test "$ac_cv_link_use_r" = yes
then
AC_DEFINE([HAVE_LINK_R],[1],[Define if you can use -Wl,-R. to pass -R. to the linker, in order to add the current directory to the dynamic linker search path.])
fi
])

48
autoconf/m4/single_cxx_check.m4 Normal file
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dnl AC_SINGLE_CXX_CHECK(DEFINEVAR, CACHEVAR, FUNCTION, HEADER, PROGRAM)
dnl $1, $2, $3, $4, $5
dnl
AC_DEFUN([AC_SINGLE_CXX_CHECK],
[AC_CACHE_CHECK([for $3 in $4], [$2],
[AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE(AC_LANG_SOURCE([$5]),[$2=yes],[$2=no])
AC_LANG_POP(C++)])
if test "$$2" = "yes"
then
AC_DEFINE($1, 1, [Define to 1 if your compiler defines $3 in the $4
header file.])
fi])
AC_DEFUN([AC_FUNC_ISNAN],[
AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_MATH_H], [ac_cv_func_isnan_in_math_h],
[isnan], [<math.h>],
[#include <math.h>
int foo(float f) {return isnan(f);}])
AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_CMATH], [ac_cv_func_isnan_in_cmath],
[isnan], [<cmath>],
[#include <cmath>
int foo(float f) {return isnan(f);}])
AC_SINGLE_CXX_CHECK([HAVE_STD_ISNAN_IN_CMATH], [ac_cv_func_std_isnan_in_cmath],
[std::isnan], [<cmath>],
[#include <cmath>
using std::isnan; int foo(float f) {return isnan(f);}])
])
AC_DEFUN([AC_FUNC_ISINF],[
AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_MATH_H], [ac_cv_func_isinf_in_math_h],
[isinf], [<math.h>],
[#include <math.h>
int foo(float f) {return isinf(f);}])
AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_CMATH], [ac_cv_func_isinf_in_cmath],
[isinf], [<cmath>],
[#include <cmath>
int foo(float f) {return isinf(f);}])
AC_SINGLE_CXX_CHECK([HAVE_STD_ISINF_IN_CMATH], [ac_cv_func_std_isinf_in_cmath],
[std::isinf], [<cmath>],
[#include <cmath>
using std::isinf; int foo(float f) {return isinf(f);}])
AC_SINGLE_CXX_CHECK([HAVE_FINITE_IN_IEEEFP_H], [ac_cv_func_finite_in_ieeefp_h],
[finite], [<ieeefp.h>],
[#include <ieeefp.h>
int foo(float f) {return finite(f);}])
])