From d4fdeab4db0d0e699c8fbbb07f12c4e1f64d0f94 Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Mon, 16 May 2016 09:22:21 +0000 Subject: tar-1.29 --- m4/wctype_h.m4 | 209 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 209 insertions(+) create mode 100644 m4/wctype_h.m4 (limited to 'm4/wctype_h.m4') diff --git a/m4/wctype_h.m4 b/m4/wctype_h.m4 new file mode 100644 index 0000000..95a4705 --- /dev/null +++ b/m4/wctype_h.m4 @@ -0,0 +1,209 @@ +# wctype_h.m4 serial 18 + +dnl A placeholder for ISO C99 , for platforms that lack it. + +dnl Copyright (C) 2006-2015 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_DEFUN([gl_WCTYPE_H], +[ + AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS_ONCE([iswcntrl]) + if test $ac_cv_func_iswcntrl = yes; then + HAVE_ISWCNTRL=1 + else + HAVE_ISWCNTRL=0 + fi + AC_SUBST([HAVE_ISWCNTRL]) + + AC_REQUIRE([gt_TYPE_WINT_T]) + if test $gt_cv_c_wint_t = yes; then + HAVE_WINT_T=1 + else + HAVE_WINT_T=0 + fi + AC_SUBST([HAVE_WINT_T]) + + gl_CHECK_NEXT_HEADERS([wctype.h]) + if test $ac_cv_header_wctype_h = yes; then + if test $ac_cv_func_iswcntrl = yes; then + dnl Linux libc5 has an iswprint function that returns 0 for all arguments. + dnl The other functions are likely broken in the same way. + AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + /* Tru64 with Desktop Toolkit C has a bug: must be + included before . + BSD/OS 4.0.1 has a bug: , and + must be included before . */ + #include + #include + #include + #include + #include + int main () { return iswprint ('x') == 0; } + ]])], + [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include + #if __GNU_LIBRARY__ == 1 + Linux libc5 i18n is broken. + #endif]], [])], + [gl_cv_func_iswcntrl_works="guessing yes"], + [gl_cv_func_iswcntrl_works="guessing no"]) + ]) + ]) + fi + HAVE_WCTYPE_H=1 + else + HAVE_WCTYPE_H=0 + fi + AC_SUBST([HAVE_WCTYPE_H]) + + case "$gl_cv_func_iswcntrl_works" in + *yes) REPLACE_ISWCNTRL=0 ;; + *) REPLACE_ISWCNTRL=1 ;; + esac + AC_SUBST([REPLACE_ISWCNTRL]) + + if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then + dnl Redefine all of iswcntrl, ..., iswxdigit in . + : + fi + + if test $REPLACE_ISWCNTRL = 1; then + REPLACE_TOWLOWER=1 + else + AC_CHECK_FUNCS([towlower]) + if test $ac_cv_func_towlower = yes; then + REPLACE_TOWLOWER=0 + else + AC_CHECK_DECLS([towlower],,, + [[/* Tru64 with Desktop Toolkit C has a bug: must be + included before . + BSD/OS 4.0.1 has a bug: , and + must be included before . */ + #include + #include + #include + #include + #if HAVE_WCTYPE_H + # include + #endif + ]]) + if test $ac_cv_have_decl_towlower = yes; then + dnl On Minix 3.1.8, the system's declares towlower() and + dnl towupper() although it does not have the functions. Avoid a + dnl collision with gnulib's replacement. + REPLACE_TOWLOWER=1 + else + REPLACE_TOWLOWER=0 + fi + fi + fi + AC_SUBST([REPLACE_TOWLOWER]) + + if test $HAVE_ISWCNTRL = 0 || test $REPLACE_TOWLOWER = 1; then + dnl Redefine towlower, towupper in . + : + fi + + dnl We assume that the wctype() and iswctype() functions exist if and only + dnl if the type wctype_t is defined in or in if that + dnl exists. + dnl HP-UX 11.00 declares all these in and lacks . + AC_CACHE_CHECK([for wctype_t], [gl_cv_type_wctype_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[/* Tru64 with Desktop Toolkit C has a bug: must be + included before . + BSD/OS 4.0.1 has a bug: , and + must be included before . */ + #include + #include + #include + #include + #if HAVE_WCTYPE_H + # include + #endif + wctype_t a; + ]], + [[]])], + [gl_cv_type_wctype_t=yes], + [gl_cv_type_wctype_t=no]) + ]) + if test $gl_cv_type_wctype_t = no; then + HAVE_WCTYPE_T=0 + fi + + dnl We assume that the wctrans() and towctrans() functions exist if and only + dnl if the type wctrans_t is defined in . + AC_CACHE_CHECK([for wctrans_t], [gl_cv_type_wctrans_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[/* Tru64 with Desktop Toolkit C has a bug: must be + included before . + BSD/OS 4.0.1 has a bug: , and + must be included before . */ + #include + #include + #include + #include + #include + wctrans_t a; + ]], + [[]])], + [gl_cv_type_wctrans_t=yes], + [gl_cv_type_wctrans_t=no]) + ]) + if test $gl_cv_type_wctrans_t = no; then + HAVE_WCTRANS_T=0 + fi + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +/* Tru64 with Desktop Toolkit C has a bug: must be included before + . + BSD/OS 4.0.1 has a bug: , and must be + included before . */ +#if !(defined __GLIBC__ && !defined __UCLIBC__) +# include +# include +# include +# include +#endif +#include + ]], + [wctype iswctype wctrans towctrans + ]) +]) + +AC_DEFUN([gl_WCTYPE_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +AC_DEFUN([gl_WCTYPE_H_DEFAULTS], +[ + GNULIB_ISWBLANK=0; AC_SUBST([GNULIB_ISWBLANK]) + GNULIB_WCTYPE=0; AC_SUBST([GNULIB_WCTYPE]) + GNULIB_ISWCTYPE=0; AC_SUBST([GNULIB_ISWCTYPE]) + GNULIB_WCTRANS=0; AC_SUBST([GNULIB_WCTRANS]) + GNULIB_TOWCTRANS=0; AC_SUBST([GNULIB_TOWCTRANS]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_ISWBLANK=1; AC_SUBST([HAVE_ISWBLANK]) + HAVE_WCTYPE_T=1; AC_SUBST([HAVE_WCTYPE_T]) + HAVE_WCTRANS_T=1; AC_SUBST([HAVE_WCTRANS_T]) + REPLACE_ISWBLANK=0; AC_SUBST([REPLACE_ISWBLANK]) +]) -- cgit v1.2.1