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the code in the C runtime is now complete independent from config.h

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This commit is contained in:
kr.angelov
2013-09-04 11:51:05 +00:00
parent 93cbfd31d1
commit c837f3927e
3 changed files with 1 additions and 51 deletions
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4
src/runtime/c/configure.ac
View File

@@ -34,10 +34,6 @@ AM_PROG_CC_C_O
-Wno-unused-value"
fi]
AC_C_ALIGNOF
AC_C_FAM_IN_MEM
case "$target_cpu" in
i?86) cpu=i386; AC_DEFINE(LIGHTNING_I386, 1,
[Define if lightning is targeting the x86 architecture]) ;;

6
src/runtime/c/gu/defs.h
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@@ -56,13 +56,9 @@
#ifdef GU_ALIGNOF
# define gu_alignof GU_ALIGNOF
# define GU_ALIGNOF_WORKS_ON_FAM_STRUCTS
#else
# define gu_alignof(t_) \
((size_t)(offsetof(struct { char c_; t_ e_; }, e_)))
# ifdef GU_CAN_HAVE_FAM_IN_MEMBER
# define GU_ALIGNOF_WORKS_ON_FAM_STRUCTS
# endif
#endif
#define GU_PLIT(type, expr) \
@@ -116,7 +112,7 @@ gu_min(int a, int b) {
return GU_MIN(a, b);
}
#ifdef GU_ALIGNOF_WORKS_ON_FAM_STRUCTS
#ifdef GU_ALIGNOF
#define gu_flex_alignof gu_alignof
#else
#define gu_flex_alignof(t) 0

42
src/runtime/c/m4/c_ext.m4
View File

@@ -1,42 +0,0 @@
# AC_C_ALIGNOF
# ------------
# Check whether the C compiler supports the alignof(type) operator
AC_DEFUN([AC_C_ALIGNOF],
[
AC_CACHE_CHECK([for alignof],ac_cv_c_alignof,
[ac_cv_c_alignof=no
for ac_kw in alignof __alignof __alignof__; do
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([], [int align = $ac_kw (int);])],
[ac_cv_c_alignof=$ac_kw; break])
done])
if test $ac_cv_c_alignof != no; then
AC_DEFINE([HAVE_ALIGNOF], 1,
[Define to 1 if alignof works on your compiler])
if test $ac_cv_c_alignof != alignof; then
AC_DEFINE_UNQUOTED([alignof], [$ac_cv_c_alignof],
[Define to the name of the alignof operator.])
fi
fi
])
# AC_C_FAM_IN_MEM
# ---------------
# Check whether the C compiler supports a flexible array member
# in a struct that is the (last) member of a struct
AC_DEFUN([AC_C_FAM_IN_MEM],
[
AC_CACHE_CHECK([for flexible array members in struct members],
ac_cv_c_fam_in_mem,
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([
struct { struct { char foo[]; } bar; } baz;
])],
[ac_cv_c_fam_in_mem=yes],
[ac_cv_c_fam_in_mem=no])])
if test $ac_cv_c_fam_in_mem = yes; then
AC_DEFINE([CAN_HAVE_FAM_IN_MEMBER], 1,
[Define to 1 if a struct with flexible array members can be
the last member of another struct.])
fi
])