Date: Thu, 26 Dec 2019 15:21:58 -0800 From: Mark Millard <marklmi@yahoo.com> To: John Baldwin <jhb@freebsd.org>, FreeBSD Toolchain <freebsd-toolchain@freebsd.org>, freebsd-ppc@freebsd.org, FreeBSD ports <freebsd-ports@freebsd.org> Cc: Gerald Pfeifer <gerald@pfeifer.com> Subject: devel/freebsd-gcc9@powerpc (for example) : it has the clang vs. gcc vec_step name conflict (for powerpc families): build fails under clang Message-ID: <BE95732C-A03D-47D6-969B-78966768AD5E@yahoo.com>
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I tried to build devel/freebsd-gcc9@powerpc on a powerpc64 (in an
ELFv1 clang environment) and it reported (listing just one of the
examples that pointed to vec_step):
/wrkdirs/usr/ports/devel/freebsd-gcc9/work-powerpc/gcc-9.2.0/gcc/tree-vect-loop.c:4595:12: error: expected unqualified-id
tree vec_step = build_vector_from_val (cr_index_vector_type, step);
^
(Unsure if white handling will still end up with ^
pointing to vec_step.)
clang reserves a name that the gcc source code uses:
vec_step . (I'll not get into the long, messy history
of this name and multiple standards built on top of
C/C++, not necessarily in a language appropriate
way.)
It turns out that:
# ls -laT /usr/ports/devel/freebsd-gcc9/files/
total 44
drwxr-xr-x 2 root wheel 512 Dec 25 19:25:26 2019 .
drwxr-xr-x 3 root wheel 512 Dec 25 19:25:26 2019 ..
-rw-r--r-- 1 root wheel 4781 Dec 25 19:25:26 2019 patch-freebsd-format-extensions
-rw-r--r-- 1 root wheel 1413 Dec 25 19:25:26 2019 patch-freebsd-libdir
-rw-r--r-- 1 root wheel 588 Dec 25 19:25:26 2019 patch-gcc-configure
-rw-r--r-- 1 root wheel 16346 Dec 25 19:25:26 2019 patch-gcc-freebsd-mips
-rw-r--r-- 1 root wheel 231 Dec 25 19:25:26 2019 xtoolchain.mk.in
is missing the patch-clang-vec_step that is in:
FBSDG5L2# ls -laT /usr/ports/lang/gcc9/files/
total 32
drwxr-xr-x 2 root wheel 512 Dec 25 20:57:52 2019 .
drwxr-xr-x 3 root wheel 512 Dec 25 21:07:33 2019 ..
-rw-r--r-- 1 root wheel 3450 Jun 1 18:44:50 2019 patch-arm-unwind-cxx-support
-rw-r--r-- 1 root wheel 651 Sep 18 11:08:37 2019 patch-clang-vec_step
-rw-r--r-- 1 root wheel 2148 Jun 1 18:44:50 2019 patch-gets-no-more
-rw-r--r-- 1 root wheel 2897 Jun 1 18:44:50 2019 patch-gfortran-libgcc
-rw-r--r-- 1 root wheel 932 Dec 25 19:25:10 2019 patch-powerpc32
-rw-r--r-- 1 root wheel 294 Sep 15 13:10:46 2019 pkg-message.in
I do not know if other differences in the patch
lists might be important to other aspects (in
either direction).
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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