Mercurial > gnulib
view m4/floorf.m4 @ 40163:b89f4c441767
Avoid build errors due to wrong references between modules.
* lib/uninorm/canonical-decomposition.c: Include
"uninorm/decomposition-table.h", not "decomposition-table.h".
* lib/uninorm/decomposition.c: Likewise.
* lib/uninorm/u8-normalize.c: Include "uninorm/decompose-internal.h",
not "decompose-internal.h".
* lib/uninorm/u16-normalize.c: Likewise.
* lib/uninorm/u32-normalize.c: Likewise.
* lib/uninorm/uninorm-filter.c: Likewise.
* lib/uninorm/nfkc.c: Likewise.
* lib/uninorm/nfkd.c: Likewise.
* lib/unicase/u8-casemap.c: Include "unicase/caseprop.h", not
"caseprop.h".
* lib/unicase/u8-ct-totitle.c: Likewise.
* lib/unicase/u8-prefix-context.c: Likewise.
* lib/unicase/u8-suffix-context.c: Likewise.
* lib/unicase/u16-casemap.c: Likewise.
* lib/unicase/u16-ct-totitle.c: Likewise.
* lib/unicase/u16-prefix-context.c: Likewise.
* lib/unicase/u16-suffix-context.c: Likewise.
* lib/unicase/u32-casemap.c: Likewise.
* lib/unicase/u32-ct-totitle.c: Likewise.
* lib/unicase/u32-prefix-context.c: Likewise.
* lib/unicase/u32-suffix-context.c: Likewise.
* lib/unicase/u8-tolower.c: Include "unicase/unicasemap.h", not
"unicasemap.h".
* lib/unicase/u8-toupper.c: Likewise.
* lib/unicase/u8-ct-tolower.c: Likewise.
* lib/unicase/u8-ct-toupper.c: Likewise.
* lib/unicase/u16-tolower.c: Likewise.
* lib/unicase/u16-toupper.c: Likewise.
* lib/unicase/u16-ct-tolower.c: Likewise.
* lib/unicase/u16-ct-toupper.c: Likewise.
* lib/unicase/u32-tolower.c: Likewise.
* lib/unicase/u32-toupper.c: Likewise.
* lib/unicase/u32-ct-tolower.c: Likewise.
* lib/unicase/u32-ct-toupper.c: Likewise.
* lib/unicase/u8-ct-casefold.c: Include "unicase/unicasemap.h", not
"unicasemap.h", and "unicase/casefold.h", not "casefold.h".
* lib/unicase/u16-ct-casefold.c: Likewise.
* lib/unicase/u32-ct-casefold.c: Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 28 Jan 2019 01:20:11 +0100 |
parents | e2e6dc79463b |
children |
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# floorf.m4 serial 16 dnl Copyright (C) 2007, 2009-2019 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. AC_DEFUN([gl_FUNC_FLOORF], [ m4_divert_text([DEFAULTS], [gl_floorf_required=plain]) AC_REQUIRE([gl_MATH_H_DEFAULTS]) dnl Persuade glibc <math.h> to declare floorf(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Test whether floorf() is declared. AC_CHECK_DECLS([floorf], , , [[#include <math.h>]]) if test "$ac_cv_have_decl_floorf" = yes; then dnl Test whether floorf() can be used without libm. gl_FUNC_FLOORF_LIBS if test "$FLOORF_LIBM" = "?"; then dnl Sun C 5.0 on Solaris declares floorf() and has it in the system-wide dnl libm.so, but not in the libm.so that the compiler uses. REPLACE_FLOORF=1 fi m4_ifdef([gl_FUNC_FLOORF_IEEE], [ if test $gl_floorf_required = ieee && test $REPLACE_FLOORF = 0; then AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether floorf works according to ISO C 99 with IEC 60559], [gl_cv_func_floorf_ieee], [ save_LIBS="$LIBS" LIBS="$LIBS $FLOORF_LIBM" AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #ifndef __NO_MATH_INLINES # define __NO_MATH_INLINES 1 /* for glibc */ #endif #include <math.h> ]gl_FLOAT_MINUS_ZERO_CODE[ ]gl_FLOAT_SIGNBIT_CODE[ static float dummy (float f) { return 0; } int main (int argc, char *argv[]) { float (* volatile my_floorf) (float) = argc ? floorf : dummy; /* Test whether floorf (-0.0f) is -0.0f. */ if (signbitf (minus_zerof) && !signbitf (my_floorf (minus_zerof))) return 1; return 0; } ]])], [gl_cv_func_floorf_ieee=yes], [gl_cv_func_floorf_ieee=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_floorf_ieee="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_floorf_ieee="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_floorf_ieee="guessing no" ;; esac ]) LIBS="$save_LIBS" ]) case "$gl_cv_func_floorf_ieee" in *yes) ;; *) REPLACE_FLOORF=1 ;; esac fi ]) else HAVE_DECL_FLOORF=0 fi if test $HAVE_DECL_FLOORF = 0 || test $REPLACE_FLOORF = 1; then dnl No libraries are needed to link lib/floorf.c. FLOORF_LIBM= fi AC_SUBST([FLOORF_LIBM]) ]) # Determines the libraries needed to get the floorf() function. # Sets FLOORF_LIBM. AC_DEFUN([gl_FUNC_FLOORF_LIBS], [ gl_CACHE_VAL_SILENT([gl_cv_func_floorf_libm], [ gl_cv_func_floorf_libm=? AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#ifndef __NO_MATH_INLINES # define __NO_MATH_INLINES 1 /* for glibc */ #endif #include <math.h> float (*funcptr) (float) = floorf; float x;]], [[x = funcptr(x) + floorf(x);]])], [gl_cv_func_floorf_libm=]) if test "$gl_cv_func_floorf_libm" = "?"; then save_LIBS="$LIBS" LIBS="$LIBS -lm" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#ifndef __NO_MATH_INLINES # define __NO_MATH_INLINES 1 /* for glibc */ #endif #include <math.h> float (*funcptr) (float) = floorf; float x;]], [[x = funcptr(x) + floorf(x);]])], [gl_cv_func_floorf_libm="-lm"]) LIBS="$save_LIBS" fi ]) FLOORF_LIBM="$gl_cv_func_floorf_libm" ])