dnl
-dnl This file contains stuff.
+dnl This file contains macros for testing linkage.
dnl
dnl
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCXX_CHECK_MATH_DECL_1
-AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_1, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_1], [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcxx_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
#endif
],
[ $1(0);],
- [glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
+ [glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
AC_LANG_RESTORE
])
fi
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1
-AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1], [
GLIBCXX_CHECK_MATH_DECL_1($1)
if test x$glibcxx_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
dnl of functions at once. It's an all-or-nothing check -- either
dnl HAVE_XYZ is defined for each of the functions, or for none of them.
dnl Doing it this way saves significant configure time.
-AC_DEFUN(GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1], [
AC_MSG_CHECKING([for $1 functions])
AC_CACHE_VAL(glibcxx_cv_func_$2_use, [
AC_LANG_SAVE
dnl ASSUMES argument is a math function with TWO parameters
dnl
dnl GLIBCXX_CHECK_MATH_DECL_2
-AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_2, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_2], [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcxx_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
dnl ASSUMES argument is a math function with TWO parameters
dnl
dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2
-AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2], [
GLIBCXX_CHECK_MATH_DECL_2($1)
if test x$glibcxx_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
dnl ASSUMES argument is a math function with THREE parameters
dnl
dnl GLIBCXX_CHECK_MATH_DECL_3
-AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_3, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_3], [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcxx_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
dnl ASSUMES argument is a math function with THREE parameters
dnl
dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3
-AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3], [
GLIBCXX_CHECK_MATH_DECL_3($1)
if test x$glibcxx_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
dnl ASSUMES argument is a stdlib function without parameters
dnl
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0
-AC_DEFUN(GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0, [
+AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0], [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcxx_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
dnl ASSUMES argument is a math function with TWO parameters
dnl
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2
-AC_DEFUN(GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
+AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2], [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcxx_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
dnl ASSUMES argument is a function with THREE parameters
dnl
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3
-AC_DEFUN(GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3, [
+AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3], [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcxx_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCXX_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
-AC_DEFUN(GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
+AC_DEFUN([GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1], [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcxx_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
AC_MSG_RESULT($glibcxx_cv_func_$1_link)
if test x$glibcxx_cv_func_$1_link = x"yes"; then
ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
- AC_DEFINE_UNQUOTED(${ac_tr_func})
+ AC_DEFINE_UNQUOTED(${ac_tr_func}, 1, [Defined if $1 exists.])
fi
fi
])
dnl check for __builtin_cosl
dnl
dnl GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
-AC_DEFUN(GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT, [
+AC_DEFUN([GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT], [
dnl Test for builtin math functions.
dnl These are made in gcc/c-common.c
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
-
- dnl There is, without a doubt, a more elegant way to have these
- dnl names exported so that they won't be stripped out of acconfig.h by
- dnl autoheader. I leave this as an exercise to somebody less frustrated
- dnl than I.... please email the libstdc++ list if you can figure out a
- dnl more elegant approach (see autoconf/acgen.m4 and specifically
- dnl AC_CHECK_FUNC for things to steal.)
- dummyvar=no
- if test x$dummyvar = x"yes"; then
- AC_DEFINE(HAVE___BUILTIN_ABS)
- AC_DEFINE(HAVE___BUILTIN_LABS)
- AC_DEFINE(HAVE___BUILTIN_COS)
- AC_DEFINE(HAVE___BUILTIN_COSF)
- AC_DEFINE(HAVE___BUILTIN_COSL)
- AC_DEFINE(HAVE___BUILTIN_FABS)
- AC_DEFINE(HAVE___BUILTIN_FABSF)
- AC_DEFINE(HAVE___BUILTIN_FABSL)
- AC_DEFINE(HAVE___BUILTIN_SIN)
- AC_DEFINE(HAVE___BUILTIN_SINF)
- AC_DEFINE(HAVE___BUILTIN_SINL)
- AC_DEFINE(HAVE___BUILTIN_SQRT)
- AC_DEFINE(HAVE___BUILTIN_SQRTF)
- AC_DEFINE(HAVE___BUILTIN_SQRTL)
- fi
])
dnl
dnl Define HAVE_STRTOF if "strtof" is declared and links
dnl
dnl GLIBCXX_CHECK_STDLIB_SUPPORT
-AC_DEFUN(GLIBCXX_CHECK_STDLIB_SUPPORT, [
+AC_DEFUN([GLIBCXX_CHECK_STDLIB_SUPPORT], [
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
dnl Define HAVE_CARGF etc if "cargf" is found.
dnl
dnl GLIBCXX_CHECK_MATH_SUPPORT
-AC_DEFUN(GLIBCXX_CHECK_MATH_SUPPORT, [
+AC_DEFUN([GLIBCXX_CHECK_MATH_SUPPORT], [
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
dnl
dnl GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
-AC_DEFUN(GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT, [
+AC_DEFUN([GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT], [
dnl Check for complex versions of math functions of platform. This will
dnl always pass if libm is available, and fail if it isn't. If it is
dnl available, we assume we'll need it later, so add it to LIBS.
AC_REPLACE_MATHFUNCS(copysignf)
dnl For __signbit to signbit conversions.
+ dnl Not sure why this is done, as these will be macros mostly.
+ dnl Should probably coordinate this with std_cmath.h.
AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
+
AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
dnl Compile the long double complex functions only if the function
AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
fi
- # XXX Review this. Nothing uses it.
+ # Used in libmath/Makefile.am.
if test -n "$LIBMATHOBJS"; then
need_libmath=yes
fi
# serial 1
#
dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
-AC_DEFUN(AC_REPLACE_MATHFUNCS,
+AC_DEFUN([AC_REPLACE_MATHFUNCS],
[AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])])
-
-dnl vim:et:ts=2
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