gcc: poison default sysroot path

Various pieces of the code assume that the --sysroot option gets passed
into the compiler tools. By having a "sane" default, we don't always
spot when this occurs and this can later show up as breakage in sstate,
or in usage of the external toolchain.

We've long since talked about poisoning the default such that it will
break unless the correct option is specified. This patch does just that.

If this patch causes something to fail to build, it most likely means
the various compiler flags and commands are not correctly being passed
through to the underlying piece of software and that there is a real
problem that needs fixing, its not the fault of this patch.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

6 files changed, 9 insertions, 9 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.9.inc b/meta/recipes-devtools/gcc/gcc-4.9.inc
index 9a66cd294f..c47f244180 100644
--- a/meta/recipes-devtools/gcc/gcc-4.9.inc
+++ b/meta/recipes-devtools/gcc/gcc-4.9.inc
@@ -122,8 +122,8 @@ EXTRA_OECONF_INTERMEDIATE = "\
 EXTRA_OECONF_append_libc-uclibc = " --disable-decimal-float "
 
 EXTRA_OECONF_PATHS = "\ 
-    --with-gxx-include-dir=${STAGING_DIR_TARGET}${target_includedir}/c++/${BINV} \ 
-    --with-sysroot=${STAGING_DIR_TARGET} \ 
+    --with-gxx-include-dir=/not/exist{target_includedir}/c++/${BINV} \ 
+    --with-sysroot=/not/exist \ 
     --with-build-sysroot=${STAGING_DIR_TARGET} \
 "
 
diff --git a/meta/recipes-devtools/gcc/gcc-cross-canadian.inc b/meta/recipes-devtools/gcc/gcc-cross-canadian.inc
index 0b1f37b908..1a63f82722 100644
--- a/meta/recipes-devtools/gcc/gcc-cross-canadian.inc
+++ b/meta/recipes-devtools/gcc/gcc-cross-canadian.inc
@@ -10,9 +10,9 @@ GCCMULTILIB = "--enable-multilib"
 require gcc-configure-common.inc
 
 EXTRA_OECONF_PATHS = "\
-    --with-gxx-include-dir=${SDKPATH}/sysroots/${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS}${target_includedir}/c++/${BINV} \
+    --with-gxx-include-dir=/not/exist${target_includedir}/c++/${BINV} \
     --with-build-time-tools=${STAGING_DIR_NATIVE}${prefix_native}/${TARGET_SYS}/bin \
-    --with-sysroot=${SDKPATH}/sysroots/${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS} \
+    --with-sysroot=/not/exist \
     --with-build-sysroot=${STAGING_DIR_TARGET} \
 "
 # We have to point gcc at a sysroot but we don't need to rebuild if this changes
diff --git a/meta/recipes-devtools/gcc/gcc-cross-initial.inc b/meta/recipes-devtools/gcc/gcc-cross-initial.inc
index 6e2f25b562..7197447080 100644
--- a/meta/recipes-devtools/gcc/gcc-cross-initial.inc
+++ b/meta/recipes-devtools/gcc/gcc-cross-initial.inc
@@ -21,7 +21,7 @@ EXTRA_OECONF = "\
     --enable-languages=c \
     ${OPTSPACE} \
     --program-prefix=${TARGET_PREFIX} \
-    --with-sysroot=${STAGING_DIR_TARGET} \
+    --with-sysroot=/not/exist \
     --with-build-sysroot=${GCCCROSS_BUILDSYSROOT} \
     ${EXTRA_OECONF_INITIAL} \
     ${@bb.utils.contains('DISTRO_FEATURES', 'ld-is-gold', '--with-ld=${STAGING_BINDIR_TOOLCHAIN}/${TARGET_PREFIX}ld.bfd', '', d)} \
diff --git a/meta/recipes-devtools/gcc/gcc-cross.inc b/meta/recipes-devtools/gcc/gcc-cross.inc
index 4cdb55f3ee..9147acd1a8 100644
--- a/meta/recipes-devtools/gcc/gcc-cross.inc
+++ b/meta/recipes-devtools/gcc/gcc-cross.inc
@@ -25,8 +25,8 @@ EXTRA_OECONF += "\
 "
 
 EXTRA_OECONF_PATHS = "\
-    --with-gxx-include-dir=${STAGING_DIR_TARGET}${target_includedir}/c++/${BINV} \
-    --with-sysroot=${STAGING_DIR_TARGET} \
+    --with-gxx-include-dir=/not/exist${target_includedir}/c++/${BINV} \
+    --with-sysroot=/not/exist \
     --with-build-sysroot=${STAGING_DIR_TARGET} \
 "
 
diff --git a/meta/recipes-devtools/gcc/gcc-runtime.inc b/meta/recipes-devtools/gcc/gcc-runtime.inc
index 167869e1f2..0348bc4607 100644
--- a/meta/recipes-devtools/gcc/gcc-runtime.inc
+++ b/meta/recipes-devtools/gcc/gcc-runtime.inc
@@ -4,7 +4,7 @@ CXXFLAGS := "${@oe_filter_out('-fvisibility-inlines-hidden', '${CXXFLAGS}', d)}"
 
 EXTRA_OECONF_PATHS = "\
     --with-gxx-include-dir=${includedir}/c++/${BINV} \
-    --with-sysroot=${STAGING_DIR_TARGET} \
+    --with-sysroot=/not/exist \
     --with-build-sysroot=${STAGING_DIR_TARGET} \
 "
 
diff --git a/meta/recipes-devtools/gcc/libgfortran.inc b/meta/recipes-devtools/gcc/libgfortran.inc
index cf7942f41d..e42843d2f1 100644
--- a/meta/recipes-devtools/gcc/libgfortran.inc
+++ b/meta/recipes-devtools/gcc/libgfortran.inc
@@ -1,7 +1,7 @@
 require gcc-configure-common.inc
 
 EXTRA_OECONF_PATHS = "\
-    --with-sysroot=${STAGING_DIR_TARGET} \
+    --with-sysroot=/not/exist \
     --with-build-sysroot=${STAGING_DIR_TARGET} \
 "