AC_MSG_RESULT($glibcxx_cv_func_$1_use)
])
+
+dnl
+dnl Define autoheader template for using the underscore functions
+dnl For each parameter, create a macro where if func doesn't exist,
+dnl but _func does, then it will "#define func _func".
+dnl
+dnl GLIBCXX_MAYBE_UNDERSCORED_FUNCS
+AC_DEFUN([GLIBCXX_MAYBE_UNDERSCORED_FUNCS],
+[AC_FOREACH([glibcxx_ufunc], [$1],
+ [AH_VERBATIM(_[]glibcxx_ufunc,
+[#if defined (]AS_TR_CPP(HAVE__[]glibcxx_ufunc)[) && ! defined (]AS_TR_CPP(HAVE_[]glibcxx_ufunc)[)
+# define ]AS_TR_CPP(HAVE_[]glibcxx_ufunc)[ 1
+# define ]glibcxx_ufunc[ _]glibcxx_ufunc[
+#endif])])
+])
+
+
dnl
dnl Check to see if the (math function) argument passed is
dnl 1) declared when using the c++ compiler
AC_CHECK_FUNCS(_$1)
fi
fi
+ GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
])
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], [
+ define([funclist],patsubst($3,\(\w+\)\(\W*\),\1 ))dnl
AC_MSG_CHECKING([for $1 functions])
AC_CACHE_VAL(glibcxx_cv_func_$2_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
- [ `for x in $3; do echo "$x (0);"; done` ],
+ patsubst(funclist,[\w+],[\& (0);]),
[glibcxx_cv_func_$2_use=yes],
[glibcxx_cv_func_$2_use=no])
AC_LANG_RESTORE])
AC_MSG_RESULT($glibcxx_cv_func_$2_use)
if test x$glibcxx_cv_func_$2_use = x"yes"; then
- AC_CHECK_FUNCS($3)
+ AC_CHECK_FUNCS(funclist)
+ else
+ AC_MSG_CHECKING([for _$1 functions])
+ AC_CACHE_VAL(glibcxx_cv_func__$2_use, [
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([#include <math.h>],
+ patsubst(funclist,[\w+],[_\& (0);]),
+ [glibcxx_cv_func__$2_use=yes],
+ [glibcxx_cv_func__$2_use=no])
+ AC_LANG_RESTORE])
+ AC_MSG_RESULT($glibcxx_cv_func__$2_use)
+ if test x$glibcxx_cv_func__$2_use = x"yes"; then
+ AC_CHECK_FUNCS(patsubst(funclist,[\w+],[_\&]))
+ fi
fi
+ GLIBCXX_MAYBE_UNDERSCORED_FUNCS(funclist)
+ undefine([funclist])
])
dnl
AC_CHECK_FUNCS(_$1)
fi
fi
+ GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
])
AC_CHECK_FUNCS(_$1)
fi
fi
+ GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
])
dnl
dnl argument 1 is name of function to check
dnl
-dnl ASSUMES argument is a math function with TWO parameters
+dnl ASSUMES argument is a stdlib function with TWO parameters
dnl
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2], [
if test x$glibcxx_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
fi
+ GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
])
dnl
dnl argument 1 is name of function to check
dnl
-dnl ASSUMES argument is a function with THREE parameters
+dnl ASSUMES argument is a stdlib function with THREE parameters
dnl
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3], [
])
fi
AC_MSG_RESULT($glibcxx_cv_func_$1_link)
+ define([NAME], [translit([$1],[abcdefghijklmnopqrstuvwxyz],
+ [ABCDEFGHIJKLMNOPQRSTUVWXYZ])])
if test x$glibcxx_cv_func_$1_link = x"yes"; then
- ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
- AC_DEFINE(${ac_tr_func}, 1, [Defined if $1 exists.])
+ AC_DEFINE([HAVE_]NAME, 1, [Define if the compiler/host combination has $1.])
fi
+ undefine([NAME])
fi
])
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
+ GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modf)
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
- dnl Some runtimes have these functions with a preceding underscore. Please
- dnl keep this sync'd with the one above. And if you add any new symbol,
- dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
- dnl Check to see if certain C math functions exist.
-
- dnl Check to see if basic C math functions have float versions.
- GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
- _float_trig,
- _acosf _asinf _atanf \
- _cosf _sinf _tanf \
- _coshf _sinhf _tanhf)
- GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
- _float_round,
- _ceilf _floorf)
-
- dnl Check to see if basic C math functions have long double versions.
- GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
- _long_double_trig,
- _acosl _asinl _atanl \
- _cosl _sinl _tanl \
- _coshl _sinhl _tanhl)
- GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
- _long_double_round,
- _ceill _floorl)
-
LIBS="$ac_save_LIBS"
CXXFLAGS="$ac_save_CXXFLAGS"
])