Ah. Thanks for forcing me to look better. I didn't notice that the $CC
was supposed to be the half-built compiler.
The error that occurs is probably due to the "winsup" part of the path
in some of the lines which should have been replaced by something else.
The place where I addressed this is in gcc/config/i386/t-wince :
SHLIB_LC = -lmingw32 -lmingwex -lceoldname -lcoredll
LIBGCC2_INCLUDES += \
-I$(srcdir)/../../mingw/include \
-I$(srcdir)/../../w32api/include
CRTSTUFF_CFLAGS += \
-I$(srcdir)/../../mingw/include \
-I$(srcdir)/../../w32api/include
which should get included by this line in gcc/config.gcc :
tmake_file="${tmake_file} i386/t-wince"
I seem to miss why this works when running on Linux but not on Cygwin.
Anyone ?
Danny
On Sat, 2009-06-13 at 23:05 +0100, Dave Korn wrote:
> Danny Backx wrote:
>
> > P.S. As I already said (see below) the offending code is in
> > src/gcc-4.4.0/libgcc/configure.
> > This is what it looks like :
> >
> > if test -z "$CPP"; then
> > if test "${ac_cv_prog_CPP+set}" = set; then
> > echo $ECHO_N "(cached) $ECHO_C" >&6
> > else
> > # Double quotes because CPP needs to be expanded
> > for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
> > do
> > ac_preproc_ok=false
> > ...
>
> There's nothing wrong with this code as such; the real question is why
> didn't "$CC -E" work like it's supposed to, and why did it end up falling back
> on the last resort "/lib/cpp"?
>
> The answer is at least partially in
> gcc-bootstrap/i386-mingw32ce/libgcc/config.log:
>
> configure:3041: checking how to run the C preprocessor
> configure:3076:
> /tmp/cegcc/cegcc/trunk/cegcc/build-i386/gcc-bootstrap/./gcc/xgcc
> -B/tmp/cegcc/cegcc/trunk/cegcc/build-i386/gcc-bootstrap/./gcc/
> -L/tmp/cegcc/cegcc/trunk/cegcc/build-i386/gcc-bootstrap/i386-mingw32ce/winsup/mingw
> -L/tmp/cegcc/cegcc/trunk/cegcc/build-i386/gcc-bootstrap/i386-mingw32ce/winsup/w32api/lib
> -isystem /tmp/cegcc/cegcc/trunk/cegcc/src/gcc-4.4.0/winsup/mingw/include
> -isystem /tmp/cegcc/cegcc/trunk/cegcc/src/gcc-4.4.0/winsup/w32api/include
> -B/opt/x86mingw32ce/i386-mingw32ce/bin/
> -B/opt/x86mingw32ce/i386-mingw32ce/lib/ -isystem
> /opt/x86mingw32ce/i386-mingw32ce/include -isystem
> /opt/x86mingw32ce/i386-mingw32ce/sys-include -E conftest.c
> In file included from
> /tmp/cegcc/cegcc/trunk/cegcc/build-i386/gcc-bootstrap/./gcc/include-fixed/syslimits.h:7,
> from
> /tmp/cegcc/cegcc/trunk/cegcc/build-i386/gcc-bootstrap/./gcc/include-fixed/limits.h:11,
> from conftest.c:10:
> /tmp/cegcc/cegcc/trunk/cegcc/build-i386/gcc-bootstrap/./gcc/include-fixed/limits.h:122:61:
> error: no include path in which to search for limits.h
> configure:3082: $? = 1
> configure: failed program was:
> | /* confdefs.h. */
> |
> | #define PACKAGE_NAME "GNU C Runtime Library"
> | #define PACKAGE_TARNAME "libgcc"
> | #define PACKAGE_VERSION "1.0"
> | #define PACKAGE_STRING "GNU C Runtime Library 1.0"
> | #define PACKAGE_BUGREPORT ""
> | /* end confdefs.h. */
> | #ifdef __STDC__
> | # include <limits.h>
> | #else
> | # include <assert.h>
> | #endif
> | Syntax error
>
> ... so, there was some kind of error from the half-built compiler and
> configure figured that means it can't use "$CC -E" to preprocess. Which begs
> the question "Why", because when I re-run the failing command manually, it
> passes fine. Odd.
>
> cheers,
> DaveK
>
>
>
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--
Danny Backx ; danny.backx - at - scarlet.be ; http://danny.backx.info
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