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|
AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_START,
[
echo "LIBREPLACE_CC_CHECKS: START"
])
AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_END,
[
echo "LIBREPLACE_CC_CHECKS: END"
])
dnl
dnl
dnl AC_LIBREPLACE_CC_CHECKS
dnl
dnl Note: we need to use m4_define instead of AC_DEFUN because
dnl of the ordering of tests
dnl
dnl
m4_define(AC_LIBREPLACE_CC_CHECKS,
[
AC__LIBREPLACE_ONLY_CC_CHECKS_START
dnl stop the C89 attempt by autoconf - if autoconf detects -Ae it will enable it
dnl which conflicts with C99 on HPUX
ac_cv_prog_cc_Ae=no
savedCFLAGS=$CFLAGS
AC_PROG_CC
CFLAGS=$savedCFLAGS
dnl don't try for C99 if we are using gcc, as otherwise we
dnl lose immediate structure constants
if test x"$GCC" != x"yes" ; then
AC_PROG_CC_C99
fi
if test x"$GCC" = x"yes" ; then
AC_MSG_CHECKING([for version of gcc])
GCC_VERSION=`$CC -dumpversion`
AC_MSG_RESULT(${GCC_VERSION})
fi
AC_USE_SYSTEM_EXTENSIONS
AC_C_BIGENDIAN
AC_C_INLINE
LIBREPLACE_C99_STRUCT_INIT([],[AC_MSG_WARN([c99 structure initializer are not supported])])
AC_PROG_INSTALL
AC_ISC_POSIX
AC_EXTENSION_FLAG(_XOPEN_SOURCE_EXTENDED)
AC_EXTENSION_FLAG(_OSF_SOURCE)
AC_SYS_LARGEFILE
dnl Add #include for broken IRIX header files
case "$host_os" in
*irix6*) AC_ADD_INCLUDE(<standards.h>)
;;
*hpux*)
# mmap on HPUX is completely broken...
AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
if test "`uname -r`" = "B.11.00"; then
AC_MSG_WARN([Enabling HPUX 11.00 header bug workaround])
CFLAGS="$CFLAGS -Dpread=pread64 -Dpwrite=pwrite64"
fi
if test "`uname -r`" = "B.11.11"; then
AC_MSG_WARN([Enabling HPUX 11.11 header bug workaround])
CFLAGS="$CFLAGS -D_LARGEFILE64_SUPPORT -D__LP64__ -DO_LARGEFILE=04000"
fi
if test "`uname -r`" = "B.11.23"; then
AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround])
CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED"
fi
;;
*aix*)
AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken])
AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken])
if test "${GCC}" != "yes"; then
## for funky AIX compiler using strncpy()
CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
fi
;;
#
# VOS may need to have POSIX support and System V compatibility enabled.
#
*vos*)
case "$CFLAGS" in
*-D_POSIX_C_SOURCE*);;
*)
CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
;;
esac
case "$CFLAGS" in
*-D_SYSV*|*-D_SVID_SOURCE*);;
*)
CFLAGS="$CFLAGS -D_SYSV"
AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
;;
esac
;;
esac
AC_CHECK_HEADERS([standards.h])
# Solaris needs HAVE_LONG_LONG defined
AC_CHECK_TYPES(long long)
AC_CHECK_TYPE(uint_t, unsigned int)
AC_CHECK_TYPE(int8_t, char)
AC_CHECK_TYPE(uint8_t, unsigned char)
AC_CHECK_TYPE(int16_t, short)
AC_CHECK_TYPE(uint16_t, unsigned short)
AC_CHECK_TYPE(int32_t, long)
AC_CHECK_TYPE(uint32_t, unsigned long)
AC_CHECK_TYPE(int64_t, long long)
AC_CHECK_TYPE(uint64_t, unsigned long long)
AC_CHECK_TYPE(size_t, unsigned int)
AC_CHECK_TYPE(ssize_t, int)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(off_t)
AC_CHECK_SIZEOF(size_t)
AC_CHECK_SIZEOF(ssize_t)
AC_CHECK_TYPE(intptr_t, unsigned long long)
AC_CHECK_TYPE(ptrdiff_t, unsigned long long)
if test x"$ac_cv_type_long_long" != x"yes";then
AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
fi
if test $ac_cv_sizeof_long_long -lt 8;then
AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
fi
############################################
# check if the compiler can do immediate structures
AC_SUBST(libreplace_cv_immediate_structures)
AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[
AC_TRY_COMPILE([
#include <stdio.h>
],[
typedef struct {unsigned x;} FOOBAR;
#define X_FOOBAR(x) ((FOOBAR) { x })
#define FOO_ONE X_FOOBAR(1)
FOOBAR f = FOO_ONE;
static const struct {
FOOBAR y;
} f2[] = {
{FOO_ONE}
};
],
libreplace_cv_immediate_structures=yes,
libreplace_cv_immediate_structures=no,
libreplace_cv_immediate_structures=cross)
])
if test x"$libreplace_cv_immediate_structures" = x"yes"; then
AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
fi
AC__LIBREPLACE_ONLY_CC_CHECKS_END
]) dnl end AC_LIBREPLACE_CC_CHECKS
|
