gcc:

	PR target/20353
	PR target/24578
	PR target/24837
	* config/linux.opt: New file.
	* config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
	LINUX_DYNAMIC_LINKER): Define.
	(TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
	* config.gcc (*-*-linux*): Define extra_options.
	(*-*-*uclibc*): Define UCLIBC_DEFAULT.
	(arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
	* config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
	GLIBC_DYNAMIC_LINKER.
	* config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
	(LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
	(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
	* doc/invoke.texi (GNU/Linux Options): New section.

gcc/testsuite:
	* gcc.dg/builtins-config.h (HAVE_C99_RUNTIME): Don't define if
	__UCLIBC__ is defined.

libstdc++-v3:
	PR libstdc++/14939
	* config/os/uclibc/ctype_base.h, config/os/uclibc/ctype_inline.h,
	config/os/uclibc/ctype_noninline.h, config/os/uclibc/os_defines.h:
	New.
	* acinclude.m4 (GLIBCXX_CONFIGURE): Test whether using uClibc.
	* configure.host: Use os/uclibc for uClibc.
	* crossconfig.m4 (*-linux*): Use link tests.  Don't hardcode
	presence of math functions.
	* configure: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111160 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 62 deletions

diff --git a/libstdc++-v3/crossconfig.m4 b/libstdc++-v3/crossconfig.m4
index ec43775be29..a04dfa19ee8 100644
--- a/libstdc++-v3/crossconfig.m4
+++ b/libstdc++-v3/crossconfig.m4
@@ -149,9 +149,13 @@ case "${host}" in
       fp.h float.h endian.h inttypes.h locale.h float.h stdint.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS)
+    GLIBCXX_CHECK_COMPILER_FEATURES
     GLIBCXX_CHECK_LINKER_FEATURES
+    GLIBCXX_CHECK_MATH_SUPPORT
+    GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
     GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
     GLIBCXX_CHECK_ICONV_SUPPORT
+    GLIBCXX_CHECK_STDLIB_SUPPORT
 
     # For LFS.
     AC_DEFINE(HAVE_INT64_T)
@@ -171,68 +175,6 @@ case "${host}" in
     # For xsputn_2().
     AC_CHECK_HEADERS(sys/uio.h)
     GLIBCXX_CHECK_WRITEV
-
-    AC_DEFINE(HAVE_ACOSF)
-    AC_DEFINE(HAVE_ASINF)
-    AC_DEFINE(HAVE_ATANF)
-    AC_DEFINE(HAVE_ATAN2F)
-    AC_DEFINE(HAVE_CEILF)
-    AC_DEFINE(HAVE_COPYSIGN)
-    AC_DEFINE(HAVE_COPYSIGNF)
-    AC_DEFINE(HAVE_COSF)
-    AC_DEFINE(HAVE_COSHF)
-    AC_DEFINE(HAVE_EXPF)
-    AC_DEFINE(HAVE_FABSF)
-    AC_DEFINE(HAVE_FINITE)
-    AC_DEFINE(HAVE_FINITEF)
-    AC_DEFINE(HAVE_FLOORF)
-    AC_DEFINE(HAVE_FMODF)
-    AC_DEFINE(HAVE_FREXPF)
-    AC_DEFINE(HAVE_HYPOT)
-    AC_DEFINE(HAVE_HYPOTF)
-    AC_DEFINE(HAVE_ISINF)
-    AC_DEFINE(HAVE_ISINFF)
-    AC_DEFINE(HAVE_ISNAN)
-    AC_DEFINE(HAVE_ISNANF)
-    AC_DEFINE(HAVE_LOGF)
-    AC_DEFINE(HAVE_LOG10F)
-    AC_DEFINE(HAVE_MODFF)
-    AC_DEFINE(HAVE_SINF)
-    AC_DEFINE(HAVE_SINHF)
-    AC_DEFINE(HAVE_SINCOS)
-    AC_DEFINE(HAVE_SINCOSF)
-    AC_DEFINE(HAVE_SQRTF)
-    AC_DEFINE(HAVE_TANF)
-    AC_DEFINE(HAVE_TANHF)
-    if test x"long_double_math_on_this_cpu" = x"yes"; then
-      AC_DEFINE(HAVE_ACOSL)
-      AC_DEFINE(HAVE_ASINL)
-      AC_DEFINE(HAVE_ATANL)
-      AC_DEFINE(HAVE_ATAN2L)
-      AC_DEFINE(HAVE_CEILL)
-      AC_DEFINE(HAVE_COPYSIGNL)
-      AC_DEFINE(HAVE_COSL)
-      AC_DEFINE(HAVE_COSHL)
-      AC_DEFINE(HAVE_EXPL)
-      AC_DEFINE(HAVE_FABSL)
-      AC_DEFINE(HAVE_FINITEL)
-      AC_DEFINE(HAVE_FLOORL)
-      AC_DEFINE(HAVE_FMODL)
-      AC_DEFINE(HAVE_FREXPL)
-      AC_DEFINE(HAVE_HYPOTL)
-      AC_DEFINE(HAVE_ISINFL)
-      AC_DEFINE(HAVE_ISNANL)
-      AC_DEFINE(HAVE_LOGL)
-      AC_DEFINE(HAVE_LOG10L)
-      AC_DEFINE(HAVE_MODFL)
-      AC_DEFINE(HAVE_POWL)
-      AC_DEFINE(HAVE_SINL)
-      AC_DEFINE(HAVE_SINHL)
-      AC_DEFINE(HAVE_SINCOSL)
-      AC_DEFINE(HAVE_SQRTL)
-      AC_DEFINE(HAVE_TANL)
-      AC_DEFINE(HAVE_TANHL)
-    fi
     ;;
   *-mingw32*)
     AC_CHECK_HEADERS([sys/types.h locale.h float.h])