Hello,
I've encountered a compilation error when compiling gnulib with TCC ( Tiny C
Compiler, http://bellard.org/tcc/ ):
it seems the "#include_next" is not working properly, but "m4/include_next.m4"
does not detect it.
Tested with TCC version 0.9.26 from the standard debian/stable package.
To reproduce:
$ ./gnulib-tool --create-testdir --dir=test-base64 --with-tests base64
$ cd test-base64/
$ CC=tcc ./configure
<...>
$ grep include_next config.log
configure:5447: checking whether the preprocessor supports include_next
gl_cv_have_include_next=yes
INCLUDE_NEXT='include_next'
INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
$ make
<...>
make[4]: Entering directory `/tmp/gnulib/test-base64/gltests'
source='test-base64.c' object='test-base64.o' libtool=no \
DEPDIR=.deps depmode=icc /bin/bash ./../build-aux/depcomp \
tcc -DHAVE_CONFIG_H -I. -DGNULIB_STRICT_CHECKING=1 -I. -I. -I.. -I./..
-I../gllib -I./../gllib -g -c test-base64.c
In file included from test-base64.c:24:
In file included from /usr/include/stdlib.h:320:
In file included from ../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
In file included from ./../gllib/sys/types.h:28:
./../gllib/sys/types.h:28: error: #include recursion too deep
make[4]: *** [test-base64.o] Error 1
When explicitly disabling 'include_next', compilation works fine:
$ make distclean
$ gl_cv_have_include_next=no CC=tcc ./configure
<...>
$ make
<...>
(compilation succeeds)
However, the test fails with a compiler-related error:
$ make check
<...>
PASS: test-base64
PASS: test-memchr
PASS: test-stdbool
PASS: test-stddef
PASS: test-string
PASS: test-sys_types
PASS: test-init.sh
PASS: test-unistd
PASS: test-verify
compiler didn't detect verification failure 3
FAIL: test-verify.sh
====================
1 of 10 tests failed
====================
make[4]: *** [check-TESTS] Error 1
make[4]: Leaving directory `/tmp/gnulib/test-base64/gltests'
make[3]: *** [check-am] Error 2
make[3]: Leaving directory `/tmp/gnulib/test-base64/gltests'
make[2]: *** [check-recursive] Error 1
make[2]: Leaving directory `/tmp/gnulib/test-base64/gltests'
make[1]: *** [check] Error 2
make[1]: Leaving directory `/tmp/gnulib/test-base64/gltests'
make: *** [check-recursive] Error 1
Regards,
- Assaf
