1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
include(CheckLibraryExists)
include(CheckTypeSize)
include(CheckCXXSourceCompiles)
# Check if the size of numeric types are suitable.
check_type_size("short" SIZEOF_SHORT)
if(NOT ${SIZEOF_SHORT} EQUAL 2)
message(FATAL_ERROR "TagLib requires that short is 16-bit wide.")
endif()
check_type_size("int" SIZEOF_INT)
if(NOT ${SIZEOF_INT} EQUAL 4)
message(FATAL_ERROR "TagLib requires that int is 32-bit wide.")
endif()
check_type_size("long long" SIZEOF_LONGLONG)
if(NOT ${SIZEOF_LONGLONG} EQUAL 8)
message(FATAL_ERROR "TagLib requires that long long is 64-bit wide.")
endif()
check_type_size("wchar_t" SIZEOF_WCHAR_T)
if(NOT ${SIZEOF_WCHAR_T} GREATER 1)
message(FATAL_ERROR "TagLib requires that wchar_t is sufficient to store a UTF-16 char.")
endif()
check_type_size("float" SIZEOF_FLOAT)
if(NOT ${SIZEOF_FLOAT} EQUAL 4)
message(FATAL_ERROR "TagLib requires that float is 32-bit wide.")
endif()
check_type_size("double" SIZEOF_DOUBLE)
if(NOT ${SIZEOF_DOUBLE} EQUAL 8)
message(FATAL_ERROR "TagLib requires that double is 64-bit wide.")
endif()
# Determine which kind of byte swap functions your compiler supports.
check_cxx_source_compiles("
int main() {
__builtin_bswap16(0);
__builtin_bswap32(0);
__builtin_bswap64(0);
return 0;
}
" HAVE_GCC_BYTESWAP)
if(NOT HAVE_GCC_BYTESWAP)
check_cxx_source_compiles("
#include <byteswap.h>
int main() {
__bswap_16(0);
__bswap_32(0);
__bswap_64(0);
return 0;
}
" HAVE_GLIBC_BYTESWAP)
if(NOT HAVE_GLIBC_BYTESWAP)
check_cxx_source_compiles("
#include <cstdlib>
int main() {
_byteswap_ushort(0);
_byteswap_ulong(0);
_byteswap_uint64(0);
return 0;
}
" HAVE_MSC_BYTESWAP)
if(NOT HAVE_MSC_BYTESWAP)
check_cxx_source_compiles("
#include <libkern/OSByteOrder.h>
int main() {
OSSwapInt16(0);
OSSwapInt32(0);
OSSwapInt64(0);
return 0;
}
" HAVE_MAC_BYTESWAP)
if(NOT HAVE_MAC_BYTESWAP)
check_cxx_source_compiles("
#include <sys/endian.h>
int main() {
swap16(0);
swap32(0);
swap64(0);
return 0;
}
" HAVE_OPENBSD_BYTESWAP)
endif()
endif()
endif()
endif()
# Determine whether your compiler supports ISO _strdup.
check_cxx_source_compiles("
#include <cstring>
int main() {
_strdup(0);
return 0;
}
" HAVE_ISO_STRDUP)
# Detect WinRT mode
if(CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
set(PLATFORM_WINRT 1)
endif()
|
