Hi Daiki, On a glibc system (glibc 2.15, Linux 3.8) I get this test failure from a gnulib testdir:
./../build-aux/test-driver: line 107: 13312 Aborted "$@" > $log_file 2>&1 FAIL: test-u8-strtok unistr/test-u-strtok.h:80: assertion 'result == first_ptr' failed FAIL test-u8-strtok (exit status: 134) The reason is through the bug fix from Seiya Kawashima on 2015-07-03 (very nice finding and nice testcase, by the way!) the behaviour of the u*_strtok functions have changed. However, on my system, the autoconfiguration finds a preinstalled libunistring.so.2 of version 0.9.3 (or so): $ ldd test-u8-strtok linux-vdso.so.1 => (0x00007fffa250f000) libunistring.so.2 => /arch/x86_64-linux-gnu/gnu/lib/libunistring.so.2 (0x00007f60910ae000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6090d93000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f60909d4000) /lib64/ld-linux-x86-64.so.2 (0x00007f6091417000) But the unit test expects a libunistring of version 0.9.6 or newer (since that was the version in which the fix was delivered). This proposed patch fixes the issue for me, along the lines of the comment in m4/libunistring-base.m4. OK to push? 2016-10-16 Bruno Haible <br...@clisp.org> Make sure the libunistring detection rejects older versions with a known bug. * modules/unistr/u8-strtok (configure.ac): Bump required version. * modules/unistr/u16-strtok (configure.ac): Likewise. * modules/unistr/u32-strtok (configure.ac): Likewise. diff --git a/modules/unistr/u16-strtok b/modules/unistr/u16-strtok index 98cfcf6..4f8ce09 100644 --- a/modules/unistr/u16-strtok +++ b/modules/unistr/u16-strtok @@ -12,7 +12,7 @@ unistr/u16-strpbrk unistr/u16-strmblen configure.ac: -gl_LIBUNISTRING_MODULE([0.9], [unistr/u16-strtok]) +gl_LIBUNISTRING_MODULE([0.9.6], [unistr/u16-strtok]) Makefile.am: if LIBUNISTRING_COMPILE_UNISTR_U16_STRTOK diff --git a/modules/unistr/u32-strtok b/modules/unistr/u32-strtok index 1206248..c7435a8 100644 --- a/modules/unistr/u32-strtok +++ b/modules/unistr/u32-strtok @@ -12,7 +12,7 @@ unistr/u32-strpbrk unistr/u32-strmblen configure.ac: -gl_LIBUNISTRING_MODULE([0.9], [unistr/u32-strtok]) +gl_LIBUNISTRING_MODULE([0.9.6], [unistr/u32-strtok]) Makefile.am: if LIBUNISTRING_COMPILE_UNISTR_U32_STRTOK diff --git a/modules/unistr/u8-strtok b/modules/unistr/u8-strtok index 657b6fd..b921d0f 100644 --- a/modules/unistr/u8-strtok +++ b/modules/unistr/u8-strtok @@ -12,7 +12,7 @@ unistr/u8-strpbrk unistr/u8-strmblen configure.ac: -gl_LIBUNISTRING_MODULE([0.9], [unistr/u8-strtok]) +gl_LIBUNISTRING_MODULE([0.9.6], [unistr/u8-strtok]) Makefile.am: if LIBUNISTRING_COMPILE_UNISTR_U8_STRTOK