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# Process this file with autoconf to produce a configure script.
AC_INIT([libatomic_ops],[1.1])
AC_CANONICAL_TARGET([])
AC_CONFIG_SRCDIR(src/atomic_ops.c)
AM_INIT_AUTOMAKE
AC_PROG_RANLIB
AM_CONFIG_HEADER(src/config.h)
# Checks for programs.
AC_PROG_CC
AM_PROG_AS
# Checks for functions.
AC_FUNC_MMAP
# Checks for header files.
AC_HEADER_STDC
# AC_CHECK_HEADERS([ ])
# Determine PIC flag, adjust default CFLAGS
need_asm=false
PICFLAG=
AC_MSG_CHECKING(Determining PIC compiler flag)
if test "$GCC" = yes; then
AC_MSG_RESULT(-fPIC)
PICFLAG=-fPIC
else
case "$host" in
*-*-hpux*)
AC_MSG_RESULT("+Z")
PICFLAG="+Z"
if test "$GCC" != yes; then
CFLAGS="$CFLAGS +O2 -mt"
fi
;;
*-*-solaris*)
AC_MSG_RESULT(-Kpic)
PICFLAG=-Kpic
if test "$GCC" != yes; then
CFLAGS="$CFLAGS -O"
need_asm=true
fi
;;
*-*-linux*)
AC_MSG_RESULT(-fPIC)
PICFLAG=-fPIC
# Any Linux compiler had better be gcc compatible.
;;
*)
AC_MSG_RESULT("<none>")
;;
esac
fi
CFLAGS="$CFLAGS -DNDEBUG"
AC_SUBST(PICFLAG)
AC_SUBST(DEFS)
AM_CONDITIONAL(NEED_ASM, test x$need_asm = xtrue)
AC_CONFIG_FILES([Makefile src/Makefile src/atomic_ops/Makefile src/atomic_ops/sysdeps/Makefile doc/Makefile tests/Makefile])
AC_CONFIG_COMMANDS([default],[[]],[[PICFLAG=${PICFLAG}
CC=${CC}
DEFS=${DEFS}]])
AC_OUTPUT
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