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author | Vincent Torri <vincent.torri@gmail.com> | 2012-09-11 16:04:21 +0000 |
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committer | Vincent Torri <vincent.torri@gmail.com> | 2012-09-11 16:04:21 +0000 |
commit | 59a9dfd11860888a35e96dfe51af63cea5cecfe1 (patch) | |
tree | 5577297b8bb6e1b299987c45eb0c0fa9a5669b0b /m4/efl_attribute.m4 | |
parent | 0ca69d1f2d2f378223bed712c9cdcd7e6679e305 (diff) |
merge: add infra for evil
SVN revision: 76463
Diffstat (limited to 'm4/efl_attribute.m4')
-rw-r--r-- | m4/efl_attribute.m4 | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/m4/efl_attribute.m4 b/m4/efl_attribute.m4 new file mode 100644 index 0000000000..78bff15679 --- /dev/null +++ b/m4/efl_attribute.m4 | |||
@@ -0,0 +1,56 @@ | |||
1 | dnl Copyright (C) 2011 Vincent Torri <vtorri at univ-evry dot fr> | ||
2 | dnl That code is public domain and can be freely used or copied. | ||
3 | |||
4 | dnl Macros for checking if the compiler supports some __attribute__ uses | ||
5 | |||
6 | dnl Usage: EFL_ATTRIBUTE_UNUSED | ||
7 | dnl call AC_DEFINE for __UNUSED__ if __attribute__((unused)) is available | ||
8 | |||
9 | AC_DEFUN([EFL_ATTRIBUTE_UNUSED], | ||
10 | [ | ||
11 | AC_MSG_CHECKING([for __attribute__ ((unused))]) | ||
12 | AC_COMPILE_IFELSE( | ||
13 | [AC_LANG_PROGRAM( | ||
14 | [[ | ||
15 | void foo(int x __attribute__ ((unused))) {} | ||
16 | ]], | ||
17 | [[ | ||
18 | ]])], | ||
19 | [have_attribute_unused="yes"], | ||
20 | [have_attribute_unused="no"]) | ||
21 | AC_MSG_RESULT([${have_attribute_unused}]) | ||
22 | |||
23 | if test "x${have_attribute_unused}" = "xyes" ; then | ||
24 | AC_DEFINE([__UNUSED__], [__attribute__ ((unused))], [Macro declaring a function argument to be unused.]) | ||
25 | else | ||
26 | AC_DEFINE([__UNUSED__], [], [__attribute__ ((unused)) is not supported.]) | ||
27 | fi | ||
28 | ]) | ||
29 | |||
30 | dnl Usage: EFL_ATTRIBUTE_VECTOR | ||
31 | dnl call AC_DEFINE for HAVE_GCC_ATTRIBUTE_VECTOR if __attribute__((vector)) is available | ||
32 | |||
33 | AC_DEFUN([EFL_ATTRIBUTE_VECTOR], | ||
34 | [ | ||
35 | AC_MSG_CHECKING([for __attribute__ ((vector))]) | ||
36 | AC_COMPILE_IFELSE( | ||
37 | [AC_LANG_PROGRAM( | ||
38 | [[ | ||
39 | typedef int v4si __attribute__ ((vector_size (16))); | ||
40 | ]], | ||
41 | [[ | ||
42 | if (sizeof(v4si) == 16) | ||
43 | return 0; | ||
44 | else | ||
45 | return -1; | ||
46 | ]])], | ||
47 | [have_attribute_vector="yes"], | ||
48 | [have_attribute_vector="no"]) | ||
49 | AC_MSG_RESULT([${have_attribute_vector}]) | ||
50 | |||
51 | if test "x${have_attribute_vector}" = "xyes" ; then | ||
52 | AC_DEFINE([HAVE_GCC_ATTRIBUTE_VECTOR], [1], [Define to 1 if your compiler supports __attribute__ ((vector)).]) | ||
53 | fi | ||
54 | ]) | ||
55 | |||
56 | dnl End of efl_attribute.m4 | ||