diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 0b0d887..09d2ab7 100644 --- a/configure.ac +++ b/configure.ac @@ -483,6 +483,9 @@ with_fp_cond=1 # A preconfigure script may define another name to TLS descriptor variant mtls_descriptor=gnu2 +# A preconfigure script may define another name to traditional TLS variant +mtls_traditional=gnu + dnl Let sysdeps/*/preconfigure act here. LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) @@ -522,7 +525,7 @@ AC_PROG_LN_S LIBC_PROG_BINUTILS -# Accept binutils 2.25 or newer. +# Accept binutils 2.39 or newer. libc_cv_with_lld=no case $($LD --version) in "GNU gold"*) @@ -543,7 +546,7 @@ case $($LD --version) in *) AC_CHECK_PROG_VER(LD, $LD, --version, [GNU ld.* \([0-9][0-9]*\.[0-9.]*\)], - [2.1[0-9][0-9]*|2.2[5-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*], + [2.[1-9][0-9][0-9]*|2.39*|2.[4-9][0-9]*|[3-9].*|[1-9][0-9]*], LD=: critic_missing="$critic_missing GNU ld") ;; esac @@ -1401,6 +1404,16 @@ LIBC_TRY_TEST_CC_COMMAND([for tls descriptor support], LIBC_CONFIG_VAR([have-test-mtls-descriptor], [$libc_cv_test_mtls_descriptor]) +dnl Check if TEST_CC support traditional tls. +LIBC_TRY_TEST_CC_COMMAND([for traditional tls support], + [$conftest_code], + [-fPIC -mtls-dialect=$mtls_traditional -nostdlib -nostartfiles -shared], + libc_cv_test_mtls_traditional, + [libc_cv_test_mtls_traditional=$mtls_traditional], + [libc_cv_test_mtls_traditional=no]) +LIBC_CONFIG_VAR([have-test-mtls-traditional], + [$libc_cv_test_mtls_traditional]) + dnl clang emits an warning for a double alias redirection, to warn the dnl original symbol is sed even when weak definition overrides it. dnl It is a usual pattern for weak_alias, where multiple alias point to @@ -1575,6 +1588,29 @@ LIBC_CONFIG_VAR([cc-option-wimplicit-fallthrough], [$libc_cv_cc_wimplicit_fallthrough]) AC_SUBST(libc_cv_test_cc_wimplicit_fallthrough) +LIBC_TRY_CC_AND_TEST_CC_OPTION([for -Wfree-labels], + [-Werror -Wfree-labels], + libc_cv_cc_wfree_labels, + [libc_cv_cc_wfree_labels=-Wfree-labels], + [libc_cv_cc_wfree_labels=], + libc_cv_test_cc_wfree_labels, + [libc_cv_test_cc_wfree_labels=-Wfree-labels], + [libc_cv_test_cc_wfree_labels=]) +LIBC_CONFIG_VAR([cc-option-wfree-labels], [$libc_cv_cc_wfree_labels]) +AC_SUBST(libc_cv_test_cc_wfree_labels) + +LIBC_TRY_CC_AND_TEST_CC_OPTION([for -Wmissing-parameter-name], + [-Werror -Wmissing-parameter-name], + libc_cv_cc_wmissing_parameter_name, + [libc_cv_cc_wmissing_parameter_name=-Wmissing-parameter-name], + [libc_cv_cc_wmissing_parameter_name=], + libc_cv_test_cc_wmissing_parameter_name, + [libc_cv_test_cc_wmissing_parameter_name=-Wmissing-parameter-name], + [libc_cv_test_cc_wmissing_parameter_name=]) +LIBC_CONFIG_VAR([cc-option-wmissing-parameter-name], + [$libc_cv_cc_wmissing_parameter_name]) +AC_SUBST(libc_cv_test_cc_wmissing_parameter_name) + conftest_code=" void bar (void (*callback) (void)); int foo (void) |