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* [Bug bootstrap/55163] New: Ongoing problem with gengtype-lex.c under CygWin with CRLF text mode line endings since 4.8
@ 2012-11-01 11:03 nico at josuttis dot de
  2013-02-08 15:42 ` [Bug bootstrap/55163] [4.8 Regression] " rguenth at gcc dot gnu.org
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: nico at josuttis dot de @ 2012-11-01 11:03 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55163

             Bug #: 55163
           Summary: Ongoing problem with gengtype-lex.c under CygWin with
                    CRLF text mode line endings since 4.8
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: nico@josuttis.de


For all versions of 4.8.0 I tried to compile, I run into the same problem
when building a C++ compiler in my CygWin environment.

The error is as follows:
========================
flex  -ogengtype-lex.c ../../src/gcc/gengtype-lex.l && { \
  echo '#include "bconfig.h"' > gengtype-lex.c.tmp; \
  cat gengtype-lex.c >> gengtype-lex.c.tmp; \
  mv gengtype-lex.c.tmp gengtype-lex.c; \
}
g++ -c   -g -O2 -DIN_GCC    -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wwrite-strings -Wcast-qual
-Wmissing-format-attribute -fno-common -Wno-error -DHAVE_CONFIG_H
-DGENERATOR_FILE -I. -Ibuild -I../../src/gcc -I../../src/gcc/build 
-I../../src/gcc/../include   -I../../src/gcc/../libcpp/include
-I/cygdrive/p/gcc/gcc-trunk-install/build/./gmp
-I/cygdrive/p/gcc/gcc-trunk-install/src/gmp
-I/cygdrive/p/gcc/gcc-trunk-install/build/./mpfr
-I/cygdrive/p/gcc/gcc-trunk-install/src/mpfr
-I/cygdrive/p/gcc/gcc-trunk-install/src/mpc/src 
-I../../src/gcc/../libdecnumber -I../../src/gcc/../libdecnumber/bid
-I../libdecnumber -I../../src/gcc/../libbacktrace     \
    -o build/gengtype-lex.o gengtype-lex.c
gengtype-lex.c:332: error: expected unqualified-id before "do"
gengtype-lex.c:332: error: expected `,' or `;' before "do"
gengtype-lex.c:352: error: expected unqualified-id before "while"
gengtype-lex.c:352: error: expected `,' or `;' before "while"
gengtype-lex.c:394: error: `yy_size_t' does not name a type
gengtype-lex.c:524: error: expected unqualified-id before '?' token
...

It seems that there is a CR/LF problem because I can fix it by
running
 /usr/bin/sed -e 's/^M$//' 
on the generated gengtype-lex.c and then continue with the build.

It looks like my CygWin settings let gengtype-lex.c get created with
some CR/LF combinations, which the compiler is then not able to handle.
This is probably caused by having DOS/text default file system type:
 $ mount -m
 none /cygdrive cygdrive text,posix=0,user 0 0

However, as I might not be the only one having text mode (with CRLF generated)
as default, we should better fix this problem.

Note that with gcc 4.7.x this problem does not exist, so this problem is new
with 4.8.


^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2013-10-25 11:49 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-01 11:03 [Bug bootstrap/55163] New: Ongoing problem with gengtype-lex.c under CygWin with CRLF text mode line endings since 4.8 nico at josuttis dot de
2013-02-08 15:42 ` [Bug bootstrap/55163] [4.8 Regression] " rguenth at gcc dot gnu.org
2013-02-15 10:32 ` steven at gcc dot gnu.org
2013-02-20 14:06 ` rguenth at gcc dot gnu.org
2013-03-22 14:48 ` [Bug bootstrap/55163] [4.8/4.9 Regression] Ongoing problem with gengtype-lex.c under CygWin with CRLF text mode line endings since 4.8/4.9 jakub at gcc dot gnu.org
2013-05-31 11:00 ` jakub at gcc dot gnu.org
2013-10-16  9:50 ` jakub at gcc dot gnu.org
2013-10-25 11:49 ` rguenth at gcc dot gnu.org

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