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authorRay Donnelly <mingw.android@gmail.com>2015-11-30 20:14:25 (GMT)
committerRay Donnelly <mingw.android@gmail.com>2016-01-03 15:52:26 (GMT)
commit29f03e3295f506e65fa5d064ae33164413f4bb1b (patch)
treeaee7593114c25155e24c3899602171f834456c92
parent44ee416289b08dc454f4d63864314f0ef6c2ba7f (diff)
Cygwin + MinGW-w64: GCC 5+ plugin support
Define PICFLAG, UNDEFINEDPREAMBLE and UNDEFINEDCODE to nothing since Windows doesn't have -fPIC (GCC warns) and can't handle undefined variable references (which are not needed anyway). Signed-off-by: Ray Donnelly <mingw.android@gmail.com>
-rw-r--r--patches/gcc/5.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch160
1 files changed, 160 insertions, 0 deletions
diff --git a/patches/gcc/5.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch b/patches/gcc/5.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
new file mode 100644
index 0000000..d8986d5
--- /dev/null
+++ b/patches/gcc/5.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
@@ -0,0 +1,160 @@
+diff -urN gcc-5.3.0.orig/config/gcc-plugin.m4 gcc-5.3.0/config/gcc-plugin.m4
+--- gcc-5.3.0.orig/config/gcc-plugin.m4 2015-12-19 14:39:04.120734900 +0000
++++ gcc-5.3.0/config/gcc-plugin.m4 2015-12-20 01:28:45.381965300 +0000
+@@ -20,6 +20,9 @@
+
+ pluginlibs=
+
++ PICFLAG="-fPIC"
++ UNDEFINEDPREAMBLE="extern int X;"
++ UNDEFINEDCODE="return X == 0;"
+ case "${host}" in
+ *-*-darwin*)
+ if test x$build = x$host; then
+@@ -30,6 +33,11 @@
+ export_sym_check=
+ fi
+ ;;
++ *-*-mingw*|*-*-cygwin*|*-*-msys*)
++ PICFLAG=""
++ UNDEFINEDPREAMBLE=""
++ UNDEFINEDCODE=""
++ ;;
+ *)
+ if test x$build = x$host; then
+ export_sym_check="objdump${exeext} -T"
+@@ -81,17 +89,17 @@
+ 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"$ac_cv_search_dlopen" = x"no"; then
+diff -urN gcc-5.3.0.orig/gcc/configure gcc-5.3.0/gcc/configure
+--- gcc-5.3.0.orig/gcc/configure 2015-12-19 14:40:16.893975900 +0000
++++ gcc-5.3.0/gcc/configure 2015-12-20 01:28:45.472476700 +0000
+@@ -28386,6 +28386,9 @@
+
+ pluginlibs=
+
++ PICFLAG="-fPIC"
++ UNDEFINEDPREAMBLE="extern int X;"
++ UNDEFINEDCODE="return X == 0;"
+ case "${host}" in
+ *-*-darwin*)
+ if test x$build = x$host; then
+@@ -28396,6 +28399,11 @@
+ export_sym_check=
+ fi
+ ;;
++ *-*-mingw*|*-*-cygwin*|*-*-msys*)
++ PICFLAG=""
++ UNDEFINEDPREAMBLE=""
++ UNDEFINEDCODE=""
++ ;;
+ *)
+ if test x$build = x$host; then
+ export_sym_check="objdump${exeext} -T"
+@@ -28508,23 +28516,23 @@
+ case "${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 -urN gcc-5.3.0.orig/libcc1/configure gcc-5.3.0/libcc1/configure
+--- gcc-5.3.0.orig/libcc1/configure 2015-12-19 14:40:20.855979000 +0000
++++ gcc-5.3.0/libcc1/configure 2015-12-20 01:28:45.504980900 +0000
+@@ -14500,6 +14500,9 @@
+
+ pluginlibs=
+
++ PICFLAG="-fPIC"
++ UNDEFINEDPREAMBLE="extern int X;"
++ UNDEFINEDCODE="return X == 0;"
+ case "${host}" in
+ *-*-darwin*)
+ if test x$build = x$host; then
+@@ -14510,6 +14513,11 @@
+ export_sym_check=
+ fi
+ ;;
++ *-*-mingw*|*-*-cygwin*|*-*-msys*)
++ PICFLAG=""
++ UNDEFINEDPREAMBLE=""
++ UNDEFINEDCODE=""
++ ;;
+ *)
+ if test x$build = x$host; then
+ export_sym_check="objdump${exeext} -T"
+@@ -14622,23 +14630,23 @@
+ 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;
+ }