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check-newlib.m4 @ 823938f

4.104.114.84.95

Last change on this file since 823938f was 823938f, checked in by Joel Sherrill <joel.sherrill@…>, on 07/07/00 at 17:01:29
Patch rtems-rc-20000707-1-cvs.diff from Ralf Corsepius <corsepiu@…> that adds a piece of the *-rc-20000705-? series that was not added to CVS accidentally.
Property mode set to `100644`
File size: 957 bytes

Rev	Line
[eb299afc]	1	dnl $Id$
	2
	3	AC_DEFUN(RTEMS_CHECK_NEWLIB,
	4	[dnl
	5	AC_REQUIRE([RTEMS_PROG_CC_FOR_TARGET])dnl
	6	AC_REQUIRE([RTEMS_CANONICALIZE_TOOLS])dnl
	7	AC_CACHE_CHECK([for newlib],
	8	rtems_cv_use_newlib,
	9	[
	10	rtems_save_CC=$CC
	11	CC=$CC_FOR_TARGET
	12
	13	dnl some versions of newlib provide not_required_by_rtems
	14	AC_TRY_LINK(
[04e4829]	15	[extern void not_required_by_rtems() ;],
[eb299afc]	16	[not_required_by_rtems()],
	17	rtems_cv_use_newlib="yes")
	18
[04e4829]	19	dnl some versions of newlib provide rtems_provides_crt0()
[eb299afc]	20	if test -z "$rtems_cv_use_newlib"; then
	21	AC_TRY_LINK(
[04e4829]	22	[extern void rtems_provides_crt0() ;],
	23	[rtems_provides_crt0()],
[eb299afc]	24	rtems_cv_use_newlib="yes",
[04e4829]	25	rtems_cv_use_newlib="no")
[eb299afc]	26	fi
	27	CC=$rtems_save_CC])
	28	RTEMS_USE_NEWLIB="$rtems_cv_use_newlib"
	29	AC_SUBST(RTEMS_USE_NEWLIB)
[823938f]	30
	31	if test x"${RTEMS_USE_NEWLIB}" = x"yes";
	32	then
	33	AC_DEFINE_UNQUOTED(RTEMS_NEWLIB,1,[if using newlib])
	34	AC_DEFINE_UNQUOTED(MALLOC_PROVIDED,1,[if malloc is provided])
	35	fi
[eb299afc]	36	])
	37

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