diff options
| -rw-r--r-- | test cases/common/37 has function/meson.build | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/test cases/common/37 has function/meson.build b/test cases/common/37 has function/meson.build index 26f13d6..a3f0a3c 100644 --- a/test cases/common/37 has function/meson.build +++ b/test cases/common/37 has function/meson.build @@ -44,11 +44,13 @@ foreach cc : compilers error('Found non-existent function "hfkerhisadf".') endif - # With glibc on Linux lchmod is a stub that will always return an error, - # we want to detect that and declare that the function is not available. - # We can't check for the C library used here of course, but if it's not - # implemented in glibc it's probably not implemented in any other 'slimmer' - # C library variants either, so the check should be safe either way hopefully. + # With glibc (before 2.32, see below) on Linux, lchmod is a stub that will + # always return an error, we want to detect that and declare that the + # function is not available. + # We can't check for the C library used here of course, but the main + # alternative Linux C library (musl) doesn't use glibc's stub mechanism; + # also, it has implemented lchmod since 2013, so it should be safe to check + # that lchmod is available on Linux when not using glibc. if host_system == 'linux' or host_system == 'darwin' assert (cc.has_function('poll', prefix : '#include <poll.h>', args : unit_test_args), @@ -57,15 +59,22 @@ foreach cc : compilers has_lchmod = cc.has_function('lchmod', prefix : lchmod_prefix, args : unit_test_args) if host_system == 'linux' - glibc_major = cc.get_define('__GLIBC__', prefix: '#include <gnu/libc-version.h>', args: unit_test_args) - glibc_minor = cc.get_define('__GLIBC_MINOR__', prefix: '#include <gnu/libc-version.h>', args: unit_test_args) - glibc_vers = '@0@.@1@'.format(glibc_major, glibc_minor) - message('GLIBC vetsion:', glibc_vers) + # __GLIBC__ macro can be retrieved by including almost any C library header + glibc_major = cc.get_define('__GLIBC__', prefix: '#include <unistd.h>', args: unit_test_args) + # __GLIBC__ will only be set for glibc + if glibc_major != '' + glibc_minor = cc.get_define('__GLIBC_MINOR__', prefix: '#include <unistd.h>', args: unit_test_args) + glibc_vers = '@0@.@1@'.format(glibc_major, glibc_minor) + message('GLIBC version:', glibc_vers) - # lchmod was implemented in glibc 2.32 (https://sourceware.org/pipermail/libc-announce/2020/000029.html) - if glibc_vers.version_compare('<2.32') - assert (not has_lchmod, '"lchmod" check should have failed') + # lchmod was implemented in glibc 2.32 (https://sourceware.org/pipermail/libc-announce/2020/000029.html) + if glibc_vers.version_compare('<2.32') + assert (not has_lchmod, '"lchmod" check should have failed') + else + assert (has_lchmod, '"lchmod" check should have succeeded') + endif else + # Other C libraries for Linux should have lchmod assert (has_lchmod, '"lchmod" check should have succeeded') endif else |