binutils-gdb/sim/common/configure.ac
Mike Frysinger a13852d936 sim: dv-cfi: check for posix_fallocate
Some systems (like OS X) do not have posix_fallocate.  Add a configure
check for it before we try to use it.  This is less work than trying
to support old systems.

URL: http://sourceware.org/bugzilla/show_bug.cgi?id=13161
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-11-07 16:28:52 +00:00

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dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.64)dnl
AC_INIT(Makefile.in)
SIM_AC_COMMON(cconfig.h)
# Put a useful copy of CPP_FOR_TARGET in Makefile.
# This is only used to build the target values header files. These files are
# shipped with distributions so CPP_FOR_TARGET only needs to work in
# developer's trees. This value is borrowed from ../../Makefile.in.
CPP_FOR_TARGET="\` \
if test -f \$\${rootme}/../../gcc/Makefile ; then \
if test -f \$\${rootme}/../../\$(TARGET_SUBDIR)/newlib/Makefile ; then \
echo \$\${rootme}/../../gcc/xgcc -B\$\${rootme}/../../gcc/ -idirafter \$\${rootme}/../../\$(TARGET_SUBDIR)/newlib/targ-include -idirafter \$(srcroot)/newlib/libc/include -nostdinc; \
else \
echo \$\${rootme}/../../gcc/xgcc -B\$\${rootme}/../../gcc/; \
fi; \
else \
if test '\$(host_canonical)' = '\$(target_canonical)' ; then \
echo \$(CC); \
else \
t='\$(program_transform_name)'; echo gcc | sed -e 's/x/x/' \$\$t; \
fi; \
fi\` -E"
AC_SUBST(CPP_FOR_TARGET)
# Set TARGET_SUBDIR, needed by CPP_FOR_TARGET.
if test x"${host}" = x"${target}" ; then
TARGET_SUBDIR="."
else
TARGET_SUBDIR=${target_alias}
fi
AC_SUBST(TARGET_SUBDIR)
# These aren't all needed yet, but will be eventually.
AC_CHECK_HEADERS(stdlib.h string.h strings.h time.h sys/times.h sys/stat.h sys/mman.h)
AC_CHECK_FUNCS(mmap munmap lstat truncate ftruncate posix_fallocate)
AC_CHECK_MEMBERS([[struct stat.st_dev], [struct stat.st_ino],
[struct stat.st_mode], [struct stat.st_nlink], [struct stat.st_uid],
[struct stat.st_gid], [struct stat.st_rdev], [struct stat.st_size],
[struct stat.st_blksize], [struct stat.st_blocks], [struct stat.st_atime],
[struct stat.st_mtime], [struct stat.st_ctime]], [], [],
[[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif]])
AC_CHECK_TYPES(socklen_t, [], [],
[#include <sys/types.h>
#include <sys/socket.h>
])
AC_OUTPUT(Makefile,
[case x$CONFIG_HEADERS in xcconfig.h:config.in) echo > stamp-h ;; esac])