xbmc/lib/libmpeg2/m4/nonpic.m4 at Helix · AIahmedshrf/xbmc

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dnl AC_LIBTOOL_NON_PIC ([ACTION-IF-WORKS], [ACTION-IF-FAILS])

dnl check for nonbuggy libtool -prefer-non-pic

AC_DEFUN([AC_LIBTOOL_NON_PIC],

[AC_MSG_CHECKING([if libtool supports -prefer-non-pic flag])

mkdir ac_test_libtool; cd ac_test_libtool; ac_cv_libtool_non_pic=no

echo "int g (int i); static int h (int i) {return g (i);} int f (int i) {return h (i);}" >f.c

echo "int (* hook) (int) = 0; int g (int i) {if (hook) i = hook (i); return i + 1;}" >g.c

../libtool --mode=compile $CC $CFLAGS -prefer-non-pic \

-c f.c >/dev/null 2>&1 && \

../libtool --mode=compile $CC $CFLAGS -prefer-non-pic \

-c g.c >/dev/null 2>&1 && \

../libtool --mode=link $CC $CFLAGS -prefer-non-pic -o libfoo.la \

-rpath / f.lo g.lo >/dev/null 2>&1 &&

ac_cv_libtool_non_pic=yes

cd ..; rm -fr ac_test_libtool; AC_MSG_RESULT([$ac_cv_libtool_non_pic])

if test x"$ac_cv_libtool_non_pic" = x"yes"; then

ifelse([$1],[],[:],[$1])

else

ifelse([$2],[],[:],[$2])

fi])