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a0ea6f1062
* aclocal/check-newlib.m4: Apply AS_IF. * aclocal/config-subdirs.m4: Remove _RTEMS_PUSH_BUILDDIR, _RTEMS_POP_BUILDDIR, _RTEMS_GIVEN_INSTALL, _RTEMS_SUB_SRCDIR. * aclocal/subdirs.m4: Fix comments, apply AS_IF. * aclocal/sysv-ipc.m4: Reflect autoconf-2.5x canonicalization changes. * aclocal/target.m4: Add _RTEMS_PUSH_BUILDDIR, _RTEMS_POP_BUILDDIR, _RTEMS_GIVEN_INSTALL, _RTEMS_SUB_SRCDIR. * automake/compile.am: Remove librtemsall from LINK_FILES.
32 lines
849 B
Plaintext
32 lines
849 B
Plaintext
dnl $Id$
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AC_DEFUN(RTEMS_CHECK_NEWLIB,
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[dnl
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AC_REQUIRE([RTEMS_PROG_CC_FOR_TARGET])dnl
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AC_REQUIRE([RTEMS_CANONICALIZE_TOOLS])dnl
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AC_CACHE_CHECK([for RTEMS newlib],
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rtems_cv_use_newlib,
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[
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dnl some versions of newlib provide not_required_by_rtems
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AC_TRY_LINK(
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[extern void not_required_by_rtems() ;],
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[not_required_by_rtems()],
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rtems_cv_use_newlib="yes")
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dnl some versions of newlib provide rtems_provides_crt0()
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AS_IF([test -z "$rtems_cv_use_newlib"],
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[AC_TRY_LINK(
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[extern void rtems_provides_crt0() ;],
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[rtems_provides_crt0()],
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rtems_cv_use_newlib="yes",
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rtems_cv_use_newlib="no")]
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)
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])
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RTEMS_USE_NEWLIB="$rtems_cv_use_newlib"
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AC_SUBST(RTEMS_USE_NEWLIB)
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AS_IF([test x"${RTEMS_USE_NEWLIB}" = x"yes"],
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[ AC_DEFINE_UNQUOTED(RTEMS_NEWLIB,1,[if using newlib])]
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)
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])
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