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|
#
# This offers a nice overview how to build shared libraries on all platforms
# http://www.fortran-2000.com/ArnaudRecipes/sharedlib.html
#
AC_DEFUN([AC_LD_EXPORT_DYNAMIC],
[
saved_LDFLAGS="$LDFLAGS"
if AC_TRY_COMMAND([${CC-cc} $CFLAGS -Wl,--version 2>&1 | grep "GNU ld" >/dev/null]); then
LD_EXPORT_DYNAMIC="-Wl,-export-dynamic"
else
case "$host_os" in
hpux* )
LD_EXPORT_DYNAMIC="-Wl,-E"
;;
*)
LD_EXPORT_DYNAMIC=""
;;
esac
fi
AC_SUBST(LD_EXPORT_DYNAMIC)
LDFLAGS="$saved_LDFLAGS"
])
AC_DEFUN([AC_LD_PICFLAG],
[
case "$host_os" in
*linux*)
PICFLAG="-fPIC"
;;
*solaris*)
if test "${GCC}" = "yes"; then
PICFLAG="-fPIC"
else
PICFLAG="-KPIC"
fi
;;
*sunos*)
PICFLAG="-KPIC" # Is this correct for SunOS
;;
*netbsd* | *freebsd* | *dragonfly* )
PICFLAG="-fPIC -DPIC"
;;
*openbsd*)
PICFLAG="-fPIC"
;;
*irix*)
if test "${GCC}" = "yes"; then
PICFLAG="-fPIC"
else
PICFLAG="-KPIC"
fi
;;
*aix*)
# as AIX code is always position independent...
PICFLAG="-O2"
;;
*hpux*)
if test $ac_cv_prog_cc_Ae = yes; then
PICFLAG="+z +ESnolit"
elif test "${GCC}" = "yes"; then
PICFLAG="-fPIC"
fi
if test "$host_cpu" = "ia64"; then
PICFLAG="+z"
fi
;;
*osf*)
PICFLAG="-fPIC"
;;
*unixware*)
PICFLAG="-KPIC"
;;
*darwin*)
PICFLAG="-fno-common"
;;
esac
AC_SUBST(PICFLAG)
])
AC_DEFUN([AC_LD_SHLDFLAGS],
[
SHLD_FLAGS="-shared"
case "$host_os" in
*linux*)
SHLD_FLAGS="-shared -Wl,-Bsymbolic"
;;
*solaris*)
SHLD_FLAGS="-G"
if test "${GCC}" = "no"; then
## ${CFLAGS} added for building 64-bit shared
## libs using Sun's Compiler
SHLD_FLAGS="-G \${CFLAGS}"
fi
;;
*sunos*)
SHLD_FLAGS="-G"
;;
*irix*)
SHLD_FLAGS="-shared"
;;
*aix*)
SHLD_FLAGS="-Wl,-G,-bexpall,-bbigtoc"
;;
*hpux*)
if test "${GCC}" = "yes"; then
SHLD_FLAGS="-shared"
else
SHLD_FLAGS="-b"
fi
;;
*osf*)
SHLD_FLAGS="-shared -warning_unresolved"
;;
*darwin*)
SHLD_FLAGS="-bundle -flat_namespace -undefined warning -Wl,-search_paths_first"
;;
esac
AC_SUBST(SHLD_FLAGS)
])
AC_DEFUN([AC_LD_SHLIBEXT],
[
SHLIBEXT="so"
case "$host_os" in
*hpux*)
if test "$host_cpu" = "ia64"; then
SHLIBEXT="so"
else
SHLIBEXT="sl"
fi
;;
*darwin*)
SHLIBEXT="dylib"
;;
esac
AC_SUBST(SHLIBEXT)
])
AC_DEFUN([AC_LD_SONAMEFLAG],
[
AC_SUBST(SONAMEFLAG)
SONAMEFLAG=""
case "$host_os" in
*linux*)
SONAMEFLAG="-Wl,-soname="
;;
*solaris*)
SONAMEFLAG="-h "
if test "${GCC}" = "yes"; then
SONAMEFLAG="-Wl,-soname="
fi
;;
*sunos*)
SONAMEFLAG="-Wl,-h,"
;;
*netbsd* | *freebsd* | *dragonfly* )
SONAMEFLAG="-Wl,-soname,"
;;
*openbsd*)
SONAMEFLAG="-Wl,-soname,"
;;
*irix*)
SONAMEFLAG="-Wl,-soname,"
;;
*hpux*)
SONAMEFLAG="-Wl,+h,"
;;
*osf*)
SONAMEFLAG="-Wl,-soname,"
;;
*unixware*)
SONAMEFLAG="-Wl,-soname,"
;;
*darwin*)
SONAMEFLAG="#"
;;
*aix*)
# Not supported
SONAMEFLAG="#"
;;
esac
])
AC_DEFUN([AC_LIBREPLACE_MDLD],
[
MDLD="${CC}"
case "$host_os" in
*irix*)
MDLD="${PROG_LD}"
;;
esac
AC_SUBST(MDLD)
])
AC_DEFUN([AC_LIBREPLACE_MDLD_FLAGS],
[
MDLD_FLAGS="-shared"
case "$host_os" in
*linux*)
MDLD_FLAGS="-shared -Wl,-Bsymbolic -Wl,--allow-shlib-undefined"
;;
*solaris*)
MDLD_FLAGS="-G"
if test "${GCC}" = "no"; then
## ${CFLAGS} added for building 64-bit shared
## libs using Sun's Compiler
NDLD_FLAGS="-G \${CFLAGS}"
fi
;;
*sunos*)
MDLD_FLAGS="-G"
;;
*aix*)
MDLD_FLAGS="-Wl,-G,-bexpall,-bbigtoc"
;;
*hpux*)
if test "${GCC}" = "yes"; then
MDLD_FLAGS="-shared"
else
MDLD_FLAGS="-b"
fi
;;
*osf*)
MDLD_FLAGS="-shared -expect_unresolved '*'"
;;
*darwin*)
MDLD_FLAGS="-bundle -flat_namespace -undefined suppress -Wl,-search_paths_first"
;;
esac
AC_SUBST(MDLD_FLAGS)
])
|
