crosstool-ng/packages/gcc-linaro/4.8-2015.06/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch

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diff -urpN '--exclude=autom4te.cache' gcc-4.8.5.orig/gcc/configure gcc-4.8.5/gcc/configure
--- gcc-4.8.5.orig/gcc/configure 2014-12-08 03:29:43.000000000 -0800
+++ gcc-4.8.5/gcc/configure 2017-02-11 16:57:27.424807994 -0800
@@ -27364,6 +27364,9 @@ fi
pluginlibs=
+PICFLAG="-fPIC"
+UNDEFINEDPREAMBLE="extern int X;"
+UNDEFINEDCODE="return X == 0;"
case "${host}" in
*-*-darwin*)
@@ -27375,6 +27378,11 @@ case "${host}" in
export_sym_check=
fi
;;
+ *-*-mingw*|*-*-cygwin*|*-*-msys*)
+ PICFLAG=""
+ UNDEFINEDPREAMBLE=""
+ UNDEFINEDCODE=""
+ ;;
*)
if test x$build = x$host; then
export_sym_check="objdump${exeext} -T"
@@ -27487,23 +27495,23 @@ fi
case "${host}" in
*-*-darwin*)
CFLAGS=`echo $CFLAGS | sed s/-mdynamic-no-pic//g`
- CFLAGS="$CFLAGS -fPIC"
+ CFLAGS="$CFLAGS ${PICFLAG}"
LDFLAGS="$LDFLAGS -shared -undefined dynamic_lookup"
;;
*)
- CFLAGS="$CFLAGS -fPIC"
- LDFLAGS="$LDFLAGS -fPIC -shared"
+ CFLAGS="$CFLAGS ${PICFLAG}"
+ LDFLAGS="$LDFLAGS ${PICFLAG} -shared"
;;
esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fPIC -shared" >&5
-$as_echo_n "checking for -fPIC -shared... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${PICFLAG} -shared" >&5
+$as_echo_n "checking for ${PICFLAG} -shared... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-extern int X;
+${UNDEFINEDPREAMBLE}
int
main ()
{
-return X == 0;
+${UNDEFINEDCODE}
;
return 0;
}
diff -urpN '--exclude=autom4te.cache' gcc-4.8.5.orig/gcc/configure.ac gcc-4.8.5/gcc/configure.ac
--- gcc-4.8.5.orig/gcc/configure.ac 2014-12-08 03:29:43.000000000 -0800
+++ gcc-4.8.5/gcc/configure.ac 2017-02-11 16:57:27.424807994 -0800
@@ -5243,6 +5243,9 @@ enable_plugin=$enableval,
enable_plugin=yes; default_plugin=yes)
pluginlibs=
+PICFLAG="-fPIC"
+UNDEFINEDPREAMBLE="extern int X;"
+UNDEFINEDCODE="return X == 0;"
case "${host}" in
*-*-darwin*)
@@ -5254,6 +5257,11 @@ case "${host}" in
export_sym_check=
fi
;;
+ *-*-mingw*|*-*-cygwin*|*-*-msys*)
+ PICFLAG=""
+ UNDEFINEDPREAMBLE=""
+ UNDEFINEDCODE=""
+ ;;
*)
if test x$build = x$host; then
export_sym_check="objdump${exeext} -T"
@@ -5305,17 +5313,17 @@ if test x"$enable_plugin" = x"yes"; then
case "${host}" in
*-*-darwin*)
CFLAGS=`echo $CFLAGS | sed s/-mdynamic-no-pic//g`
- CFLAGS="$CFLAGS -fPIC"
+ CFLAGS="$CFLAGS ${PICFLAG}"
LDFLAGS="$LDFLAGS -shared -undefined dynamic_lookup"
;;
*)
- CFLAGS="$CFLAGS -fPIC"
- LDFLAGS="$LDFLAGS -fPIC -shared"
+ CFLAGS="$CFLAGS ${PICFLAG}"
+ LDFLAGS="$LDFLAGS ${PICFLAG} -shared"
;;
esac
- AC_MSG_CHECKING([for -fPIC -shared])
+ AC_MSG_CHECKING([for ${PICFLAG} -shared])
AC_TRY_LINK(
- [extern int X;],[return X == 0;],
+ [${UNDEFINEDPREAMBLE}],[${UNDEFINEDCODE}],
[AC_MSG_RESULT([yes]); have_pic_shared=yes],
[AC_MSG_RESULT([no]); have_pic_shared=no])
if test x"$have_pic_shared" != x"yes" -o x"$ac_cv_search_dlopen" = x"no"; then