diff options
Diffstat (limited to 'Build/source/libs/gmp/m4/gmp-attribute.m4')
| -rw-r--r-- | Build/source/libs/gmp/m4/gmp-attribute.m4 | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/m4/gmp-attribute.m4 b/Build/source/libs/gmp/m4/gmp-attribute.m4 new file mode 100644 index 00000000000..9b1a6a76fe9 --- /dev/null +++ b/Build/source/libs/gmp/m4/gmp-attribute.m4 @@ -0,0 +1,75 @@ +# Autoconf macros for the GNU MP Library. +# Copyright (C) 2000-2014 Free Software Foundation, Inc. +# +# Copyright (C) 2014 Peter Breitenlohner <tex-live@tug.org> +# Extracted from gmp-6.0.0/acinclude.m4 and adapted for TeX Live. +# +# This file is free software; the copyright holders +# give unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# GMP_C_ATTRIBUTE_CONST +# --------------------- +AC_DEFUN([GMP_C_ATTRIBUTE_CONST], +[AC_CACHE_CHECK([whether gcc __attribute__ ((const)) works], + [gmp_cv_c_attribute_const], +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[int foo (int x) __attribute__ ((const));]])], + [gmp_cv_c_attribute_const=yes], [gmp_cv_c_attribute_const=no]) +]) +if test $gmp_cv_c_attribute_const = yes; then + AC_DEFINE([HAVE_ATTRIBUTE_CONST], 1, + [Define to 1 if the compiler accepts gcc style __attribute__ ((const))]) +fi +]) # GMP_C_ATTRIBUTE_CONST + + +# GMP_C_ATTRIBUTE_MALLOC +# ---------------------- +# gcc 2.95.x accepts __attribute__ ((malloc)) but with a warning that +# it's ignored. Pretend it doesn't exist in this case, to avoid that +# warning. +AC_DEFUN([GMP_C_ATTRIBUTE_MALLOC], +[AC_CACHE_CHECK([whether gcc __attribute__ ((malloc)) works], + [gmp_cv_c_attribute_malloc], +[gmp_cv_c_attribute_malloc=no +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void *foo (int x) __attribute__ ((malloc));]])], + [AS_IF([grep "attribute directive ignored" conftest.err >/dev/null], + [], + [gmp_cv_c_attribute_malloc=yes])]) +]) +if test $gmp_cv_c_attribute_malloc = yes; then + AC_DEFINE([HAVE_ATTRIBUTE_MALLOC], 1, + [Define to 1 if the compiler accepts gcc style __attribute__ ((malloc))]) +fi +]) # GMP_C_ATTRIBUTE_MALLOC + + +# GMP_C_ATTRIBUTE_MODE +# -------------------- +# Introduced in gcc 2.2, but perhaps not in all Apple derived versions. +AC_DEFUN([GMP_C_ATTRIBUTE_MODE], +[AC_CACHE_CHECK([whether gcc __attribute__ ((mode (XX))) works], + [gmp_cv_c_attribute_mode], +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[typedef int SItype __attribute__ ((mode (SI)));]])], + [gmp_cv_c_attribute_mode=yes], [gmp_cv_c_attribute_mode=no]) +]) +if test $gmp_cv_c_attribute_mode = yes; then + AC_DEFINE([HAVE_ATTRIBUTE_MODE], 1, + [Define to 1 if the compiler accepts gcc style __attribute__ ((mode (XX)))]) +fi +]) # GMP_C_ATTRIBUTE_MODE + + +# GMP_C_ATTRIBUTE_NORETURN +# ------------------------ +AC_DEFUN([GMP_C_ATTRIBUTE_NORETURN], +[AC_CACHE_CHECK([whether gcc __attribute__ ((noreturn)) works], + [gmp_cv_c_attribute_noreturn], +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void foo (int x) __attribute__ ((noreturn));]])], + [gmp_cv_c_attribute_noreturn=yes], [gmp_cv_c_attribute_noreturn=no]) +]) +if test $gmp_cv_c_attribute_noreturn = yes; then + AC_DEFINE([HAVE_ATTRIBUTE_NORETURN], 1, + [Define to 1 if the compiler accepts gcc style __attribute__ ((noreturn))]) +fi +]) # GMP_C_ATTRIBUTE_NORETURN |