# This is a freestanding configuration; there is nothing to do here.
;;
+ avr*-*-*)
+ AC_DEFINE(HAVE_ACOSF)
+ AC_DEFINE(HAVE_ASINF)
+ AC_DEFINE(HAVE_ATAN2F)
+ AC_DEFINE(HAVE_ATANF)
+ AC_DEFINE(HAVE_CEILF)
+ AC_DEFINE(HAVE_COSF)
+ AC_DEFINE(HAVE_COSHF)
+ AC_DEFINE(HAVE_EXPF)
+ AC_DEFINE(HAVE_FABSF)
+ AC_DEFINE(HAVE_FLOORF)
+ AC_DEFINE(HAVE_FMODF)
+ AC_DEFINE(HAVE_FREXPF)
+ AC_DEFINE(HAVE_SQRTF)
+ AC_DEFINE(HAVE_HYPOTF)
+ AC_DEFINE(HAVE_LDEXPF)
+ AC_DEFINE(HAVE_LOG10F)
+ AC_DEFINE(HAVE_LOGF)
+ AC_DEFINE(HAVE_MODFF)
+ AC_DEFINE(HAVE_POWF)
+ AC_DEFINE(HAVE_SINF)
+ AC_DEFINE(HAVE_SINHF)
+ AC_DEFINE(HAVE_TANF)
+ AC_DEFINE(HAVE_TANHF)
+ ;;
+
mips*-sde-elf*)
# These definitions are for the SDE C library rather than newlib.
SECTION_FLAGS='-ffunction-sections -fdata-sections'
AC_DEFINE(HAVE_SQRTF)
;;
- spu-*-elf*)
- GLIBCXX_CHECK_COMPILER_FEATURES
- GLIBCXX_CHECK_LINKER_FEATURES
- GLIBCXX_CHECK_MATH_SUPPORT
- GLIBCXX_CHECK_STDLIB_SUPPORT
- AM_ICONV
- ;;
-
*-aix*)
GLIBCXX_CHECK_LINKER_FEATURES
GLIBCXX_CHECK_MATH_SUPPORT
GLIBCXX_CHECK_STDLIB_SUPPORT
+ AC_DEFINE(_GLIBCXX_USE_DEV_RANDOM)
AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1)
# We don't yet support AIX's TLS ABI.
#GCC_CHECK_TLS
AM_ICONV
+
+ AC_DEFINE(HAVE_USELOCALE)
;;
*-darwin*)
# Don't call GLIBCXX_CHECK_LINKER_FEATURES, Darwin doesn't have a GNU ld
GLIBCXX_CHECK_MATH_SUPPORT
GLIBCXX_CHECK_STDLIB_SUPPORT
+
+ AC_CHECK_FUNCS(uselocale)
;;
*djgpp)
AC_DEFINE(HAVE_ISINFL)
AC_DEFINE(HAVE_ISNANL)
fi
+ AC_CHECK_FUNCS(__cxa_thread_atexit)
+ AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc)
+ AC_CHECK_FUNCS(timespec_get)
+ AC_CHECK_FUNCS(sockatmark)
+ AC_CHECK_FUNCS(uselocale)
+ ;;
+
+ *-fuchsia*)
+ SECTION_FLAGS='-ffunction-sections -fdata-sections'
+ AC_SUBST(SECTION_FLAGS)
;;
+
*-hpux*)
SECTION_FLAGS='-ffunction-sections -fdata-sections'
AC_SUBST(SECTION_FLAGS)
AC_DEFINE(HAVE_STRTOLD)
GCC_CHECK_TLS
- case "$target" in
- *-hpux10*)
- AC_DEFINE(HAVE_ISINF)
- AC_DEFINE(HAVE_ISINFF)
- AC_DEFINE(HAVE_ISNANF)
- AC_DEFINE(HAVE_FINITE)
- AC_DEFINE(HAVE_FINITEF)
- ;;
- esac
;;
- *-linux* | *-uclinux* | *-gnu* | *-kfreebsd*-gnu | *-knetbsd*-gnu | *-cygwin*)
+ *-linux* | *-uclinux* | *-gnu* | *-kfreebsd*-gnu | *-cygwin* | *-solaris*)
GLIBCXX_CHECK_COMPILER_FEATURES
GLIBCXX_CHECK_LINKER_FEATURES
GLIBCXX_CHECK_MATH_SUPPORT
GLIBCXX_CHECK_STDLIB_SUPPORT
+ AC_DEFINE(_GLIBCXX_USE_DEV_RANDOM)
AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1)
GCC_CHECK_TLS
+ AC_CHECK_FUNCS(__cxa_thread_atexit_impl)
+ AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc)
+ AC_CHECK_FUNCS(timespec_get)
+ AC_CHECK_FUNCS(sockatmark)
+ AC_CHECK_FUNCS(uselocale)
+ AC_CHECK_FUNCS(secure_getenv)
AM_ICONV
;;
*-mingw32*)
GLIBCXX_CHECK_LINKER_FEATURES
GLIBCXX_CHECK_MATH_SUPPORT
GLIBCXX_CHECK_STDLIB_SUPPORT
+ AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc)
+ AC_CHECK_FUNCS(_wfopen)
+ GCC_CHECK_TLS
;;
- *-netbsd*)
+ *-netbsd* | *-openbsd*)
SECTION_FLAGS='-ffunction-sections -fdata-sections'
AC_SUBST(SECTION_FLAGS)
GLIBCXX_CHECK_LINKER_FEATURES
AC_DEFINE(HAVE_ISINFL)
AC_DEFINE(HAVE_ISNANL)
fi
+ AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc)
+ AC_CHECK_FUNCS(timespec_get)
+ AC_CHECK_FUNCS(sockatmark)
;;
*-qnx6.1* | *-qnx6.2*)
SECTION_FLAGS='-ffunction-sections -fdata-sections'
AC_DEFINE(HAVE_SINHF)
AC_DEFINE(HAVE_SINHL)
;;
- *-rtems*)
- GLIBCXX_CHECK_COMPILER_FEATURES
- GLIBCXX_CHECK_LINKER_FEATURES
- GLIBCXX_CHECK_MATH_SUPPORT
- GLIBCXX_CHECK_STDLIB_SUPPORT
- ;;
- *-solaris*)
- case "$target" in
- *-solaris2.9 | *-solaris2.10)
- GLIBCXX_CHECK_LINKER_FEATURES
- AC_DEFINE(HAVE_MBSTATE_T)
- AC_DEFINE(HAVE_FINITE)
- AC_DEFINE(HAVE_FPCLASS)
- # All of the dependencies for wide character support are here, so
- # turn it on.
- AC_DEFINE(_GLIBCXX_USE_WCHAR_T)
- ;;
- esac
- case "$target" in
- *-*-solaris2.10)
- # These two C99 functions are present only in Solaris >= 10
- AC_DEFINE(HAVE_STRTOF)
- AC_DEFINE(HAVE_STRTOLD)
- ;;
- esac
- AC_DEFINE(HAVE_ISNAN)
- AC_DEFINE(HAVE_ISNANF)
- AC_DEFINE(HAVE_MODFF)
- AC_DEFINE(HAVE_HYPOT)
- ;;
*-tpf)
SECTION_FLAGS='-ffunction-sections -fdata-sections'
SECTION_LDFLAGS='-Wl,--gc-sections $SECTION_LDFLAGS'
GLIBCXX_CHECK_MATH_SUPPORT
GLIBCXX_CHECK_STDLIB_SUPPORT
;;
- *-vxworks)
+ *-vxworks*)
AC_DEFINE(HAVE_ACOSF)
AC_DEFINE(HAVE_ASINF)
AC_DEFINE(HAVE_ATAN2F)
AC_DEFINE(HAVE_SQRTF)
AC_DEFINE(HAVE_TANF)
AC_DEFINE(HAVE_TANHF)
+
+dnl # Different versions and execution modes implement different
+dnl # subsets of these functions. Instead of hard-coding, test for C
+dnl # declarations in headers. The C primitives could be defined as
+dnl # macros, in which case the tests might fail, and we might have to
+dnl # switch to more elaborate tests.
+ GLIBCXX_CHECK_MATH_DECLS([
+ acosl asinl atan2l atanl ceill cosl coshl expl fabsl floorl fmodl
+ frexpl ldexpl log10l logl modfl powl sinl sinhl sqrtl tanl tanhl hypotl
+ ldexpf modff hypotf frexpf])
+dnl # sincosl is the only one missing here, compared with the *l
+dnl # functions in the list guarded by
+dnl # long_double_math_on_this_cpu in configure.ac, right after
+dnl # the expansion of the present macro.
;;
*)
AC_MSG_ERROR([No support for this host/target combination.])
;;
esac
])
+
+
+dnl
+dnl Check to see if the (math function) argument passed is
+dnl declared when using the c compiler
+dnl
+dnl Define HAVE_CARGF etc if "cargf" is declared
+dnl
+dnl argument 1 is name of function to check
+dnl
+dnl ASSUMES argument is a math function
+dnl
+dnl GLIBCXX_CHECK_MATH_DECL
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECL], [
+ AC_CACHE_CHECK([for $1 declaration],
+ [glibcxx_cv_func_$1_use], [
+ AC_LANG_SAVE
+ AC_LANG_C
+ AC_TRY_COMPILE([
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef $1
+], [
+ void (*f)(void) = (void (*)(void))$1;
+], [glibcxx_cv_func_$1_use=yes
+], [glibcxx_cv_func_$1_use=no])])
+ if test "x$glibcxx_cv_func_$1_use" = xyes; then
+ AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]))
+ fi
+])
+
+dnl
+dnl Check to see whether multiple math functions are
+dnl declared when using the c compiler
+dnl
+dnl Define HAVE_CARGF HAVE_POWL etc if "cargf" and "powl"
+dnl are declared
+dnl
+dnl argument 1 is a word list naming function to check
+dnl
+dnl ASSUMES arguments are math functions
+dnl
+dnl GLIBCXX_CHECK_MATH_DECLS
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECLS], [
+ m4_foreach_w([glibcxx_func], [$1], [
+ GLIBCXX_CHECK_MATH_DECL(glibcxx_func)
+ ])
+])
git://gcc.gnu.org / gcc.git / blobdiff