On 2018-Jul-1, at 6:34 AM, Mark Millard wrote:
> My brain finally engaged for showing exactly what files are included
> for the gcc builds: the .meta files include that information explicitly
> (along with other files that are opened during the operation).
>
> amd64 is as I reported, just one header file from gcc: float.h .
>
> powerpc64 builds Lex/Lexer.cpp without defining __ALTIVEC__ and so
> is not including . Building without __ALTIVEC__ might
> be an error itself but would be a workaround for the altivec.h
> file name aliasing vs. search-path problem.
>
> . . .
Going in a different direction, what of the unchanged Makefile.inc1
code block:
.if ${WANT_COMPILER_TYPE} == gcc || \
(defined(X_COMPILER_TYPE) && ${X_COMPILER_TYPE} == gcc)
# GCC requires -isystem and -L when using a cross-compiler. --sysroot
# won't set header path and -L is used to ensure the base library path
# is added before the port PREFIX library path.
CD2CFLAGS+= -isystem ${XDDESTDIR}/usr/include -L${XDDESTDIR}/usr/lib
# GCC requires -B to find /usr/lib/crti.o when using a cross-compiler
# combined with --sysroot.
CD2CFLAGS+= -B${XDDESTDIR}/usr/lib
# Force using libc++ for external GCC.
.if defined(X_COMPILER_TYPE) && \
${X_COMPILER_TYPE} == gcc && ${X_COMPILER_VERSION} >= 40800
CD2CXXFLAGS+= -isystem ${XDDESTDIR}/usr/include/c++/v1 -std=c++11 \
-nostdinc++
.endif
.endif
Why is that pair of -isystem uses that gives the old search order
okay? Or was the block just missed? (Similarly for other options
listed above.)
Note: Locally I've reverted the -r335782 changes in order for my use
of devel/*-gcc as cross compilers to work where they used to (hopefully:
still building), restoring the historical search order for the
directories for now.
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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