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RedBear-OS/recipes/tools/gettext/source/libtextstyle/gnulib-m4/check-math-lib.m4
T
vasilito ff4ff35918 feat: track all source trees in git — full fork offline-first model
Red Bear OS is a full fork. All sources must be available from git clone
with zero network access. Removed gitignore rules that excluded fetched
source trees under recipes/*/source/, local/recipes/kde/*/source/,
local/recipes/qt/*/source/, and vendor source trees.

Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded.

127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt
frameworks, mesa, wayland, DRM drivers, and every other recipe source.
2026-05-14 10:55:53 +01:00

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# check-math-lib.m4 serial 5
dnl Copyright (C) 2007, 2009-2024 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
dnl gl_CHECK_MATH_LIB (VARIABLE, EXPRESSION [, EXTRA-CODE])
dnl
dnl Sets the shell VARIABLE according to the libraries needed by EXPRESSION
dnl to compile and link: to the empty string if no extra libraries are needed,
dnl to "-lm" if -lm is needed, or to "missing" if it does not compile and
dnl link either way.
dnl
dnl Example: gl_CHECK_MATH_LIB([ROUNDF_LIBM], [x = roundf (x);])
AC_DEFUN([gl_CHECK_MATH_LIB], [
saved_LIBS="$LIBS"
$1=missing
for libm in "" "-lm"; do
LIBS="$saved_LIBS $libm"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifndef __NO_MATH_INLINES
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
$3
double x;]],
[$2])],
[$1=$libm
break])
done
LIBS="$saved_LIBS"
])