diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 117 |
1 files changed, 74 insertions, 43 deletions
diff --git a/configure.ac b/configure.ac index a4ac589..8272764 100644 --- a/configure.ac +++ b/configure.ac @@ -4502,6 +4502,71 @@ then fi AC_MSG_RESULT([$with_doc_strings]) +# Check for stdatomic.h, required for mimalloc. +AC_CACHE_CHECK([for stdatomic.h], [ac_cv_header_stdatomic_h], [ +AC_LINK_IFELSE( +[ + AC_LANG_SOURCE([[ + #include <stdatomic.h> + atomic_int int_var; + atomic_uintptr_t uintptr_var; + int main() { + atomic_store_explicit(&int_var, 5, memory_order_relaxed); + atomic_store_explicit(&uintptr_var, 0, memory_order_relaxed); + int loaded_value = atomic_load_explicit(&int_var, memory_order_seq_cst); + return 0; + } + ]]) +],[ac_cv_header_stdatomic_h=yes],[ac_cv_header_stdatomic_h=no]) +]) + +AS_VAR_IF([ac_cv_header_stdatomic_h], [yes], [ + AC_DEFINE(HAVE_STD_ATOMIC, 1, + [Has stdatomic.h with atomic_int and atomic_uintptr_t]) +]) + +# Check for GCC >= 4.7 and clang __atomic builtin functions +AC_CACHE_CHECK([for builtin __atomic_load_n and __atomic_store_n functions], [ac_cv_builtin_atomic], [ +AC_LINK_IFELSE( +[ + AC_LANG_SOURCE([[ + int val; + int main() { + __atomic_store_n(&val, 1, __ATOMIC_SEQ_CST); + (void)__atomic_load_n(&val, __ATOMIC_SEQ_CST); + return 0; + } + ]]) +],[ac_cv_builtin_atomic=yes],[ac_cv_builtin_atomic=no]) +]) + +AS_VAR_IF([ac_cv_builtin_atomic], [yes], [ + AC_DEFINE(HAVE_BUILTIN_ATOMIC, 1, [Has builtin __atomic_load_n() and __atomic_store_n() functions]) +]) + +# --with-mimalloc +AC_MSG_CHECKING([for --with-mimalloc]) +AC_ARG_WITH([mimalloc], + [AS_HELP_STRING([--with-mimalloc], + [build with mimalloc memory allocator (default is yes if C11 stdatomic.h is available.)])], + [], + [with_mimalloc="$ac_cv_header_stdatomic_h"] +) + +if test "$with_mimalloc" != no; then + if test "$ac_cv_header_stdatomic_h" != yes; then + # mimalloc-atomic.h wants C11 stdatomic.h on POSIX + AC_MSG_ERROR([mimalloc requires stdatomic.h, use --without-mimalloc to disable mimalloc.]) + fi + with_mimalloc=yes + AC_DEFINE([WITH_MIMALLOC], [1], [Define if you want to compile in mimalloc memory allocator.]) + AC_SUBST([MIMALLOC_HEADERS], ['$(MIMALLOC_HEADERS)']) +fi + +AC_MSG_RESULT([$with_mimalloc]) +AC_SUBST([WITH_MIMALLOC]) +AC_SUBST([MIMALLOC_HEADERS]) + # Check for Python-specific malloc support AC_MSG_CHECKING([for --with-pymalloc]) AC_ARG_WITH( @@ -6530,6 +6595,8 @@ SRCDIRS="\ Modules/cjkcodecs \ Modules/expat \ Objects \ + Objects/mimalloc \ + Objects/mimalloc/prim \ Parser \ Parser/tokenizer \ Parser/lexer \ @@ -6627,49 +6694,6 @@ if test "$ac_cv_gcc_asm_for_x87" = yes; then esac fi -# Check for stdatomic.h -AC_CACHE_CHECK([for stdatomic.h], [ac_cv_header_stdatomic_h], [ -AC_LINK_IFELSE( -[ - AC_LANG_SOURCE([[ - #include <stdatomic.h> - atomic_int int_var; - atomic_uintptr_t uintptr_var; - int main(void) { - atomic_store_explicit(&int_var, 5, memory_order_relaxed); - atomic_store_explicit(&uintptr_var, 0, memory_order_relaxed); - int loaded_value = atomic_load_explicit(&int_var, memory_order_seq_cst); - return 0; - } - ]]) -],[ac_cv_header_stdatomic_h=yes],[ac_cv_header_stdatomic_h=no]) -]) - -AS_VAR_IF([ac_cv_header_stdatomic_h], [yes], [ - AC_DEFINE([HAVE_STD_ATOMIC], [1], - [Has stdatomic.h with atomic_int and atomic_uintptr_t]) -]) - -# Check for GCC >= 4.7 and clang __atomic builtin functions -AC_CACHE_CHECK([for builtin __atomic_load_n and __atomic_store_n functions], [ac_cv_builtin_atomic], [ -AC_LINK_IFELSE( -[ - AC_LANG_SOURCE([[ - int val; - int main(void) { - __atomic_store_n(&val, 1, __ATOMIC_SEQ_CST); - (void)__atomic_load_n(&val, __ATOMIC_SEQ_CST); - return 0; - } - ]]) -],[ac_cv_builtin_atomic=yes],[ac_cv_builtin_atomic=no]) -]) - -AS_VAR_IF([ac_cv_builtin_atomic], [yes], [ - AC_DEFINE([HAVE_BUILTIN_ATOMIC], [1], - [Has builtin __atomic_load_n() and __atomic_store_n() functions]) -]) - # ensurepip option AC_MSG_CHECKING([for ensurepip]) AC_ARG_WITH([ensurepip], @@ -7401,3 +7425,10 @@ AS_VAR_IF([PY_SUPPORT_TIER], [0], [AC_MSG_WARN([ Platform "$host" with compiler "$ac_cv_cc_name" is not supported by the CPython core team, see https://peps.python.org/pep-0011/ for more information. ])]) + +if test "$ac_cv_header_stdatomic_h" != "yes"; then + AC_MSG_NOTICE(m4_normalize([ + Your compiler or platform does have a working C11 stdatomic.h. A future + version of Python may require stdatomic.h. + ])) +fi |