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a3cbd105 L |
1 | #! /dev/null |
2 | # Don't call it directly. This shell script fragment is called to | |
3 | # determine: | |
4 | # | |
5 | # 1. libstcxx_interface: the interface name for libstdc++. | |
6 | # 2. cxx_interface: the interface name for c++. | |
7 | # 3. libc_interface: the interface name for libc. | |
8 | # | |
9 | ||
10 | # Get the top level src dir. | |
11 | if [ -z "${topsrcdir}" -a -z "${top_srcdir}" ] | |
12 | then | |
13 | echo "Undefined top level src dir: topsrcdir and top_srcdir are empty" >&2 | |
14 | exit 1 | |
15 | fi | |
16 | ||
17 | if [ -n "${topsrcdir}" ] | |
18 | then | |
19 | if_topsrcdir=${topsrcdir} | |
20 | else | |
21 | if_topsrcdir=${top_srcdir} | |
22 | fi | |
23 | ||
17090313 BK |
24 | if [ "${enable_libstdcxx_v3}" = "yes" ] ; then |
25 | libstdcxx_srcdir=${if_topsrcdir}/libstdc++-v3 | |
26 | else | |
27 | libstdcxx_srcdir=${if_topsrcdir}/libstdc++ | |
28 | fi | |
29 | ||
30 | echo "${libstdcxx_srcdir} is where" | |
31 | if [ -f ${libstdcxx_srcdir}/Makefile.in ]; then | |
a3cbd105 | 32 | # We check libstdc++ for libstdcxx_interface. |
17090313 | 33 | libstdcxx_interface=`grep "^INTERFACE" ${libstdcxx_srcdir}/Makefile.in | sed 's/INTERFACE[ ]*=[ ]*\(.*\)/\1/'` |
1b8a4ef3 JL |
34 | else |
35 | libstdcxx_interface= | |
36 | fi | |
a3cbd105 | 37 | |
1b8a4ef3 | 38 | if [ -f ${if_topsrcdir}/gcc/cp/Makefile.in ]; then |
a3cbd105 L |
39 | # We check gcc/cp for cxx_interface. |
40 | cxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/gcc/cp/Makefile.in | sed 's/INTERFACE[ ]*=[ ]*\(.*\)/\1/'` | |
1b8a4ef3 JL |
41 | else |
42 | cxx_interface= | |
43 | fi | |
a3cbd105 L |
44 | |
45 | # The trickiest part is libc_interface. | |
46 | if [ -z "${libc_interface}" ] | |
47 | then | |
48 | case ${target_os} in | |
49 | *linux*libc1*|*linux*libc5*) | |
50 | case ${target_alias} in | |
51 | *alpha*|*powerpc*) | |
52 | libc_interface=-libc5.9- | |
53 | ;; | |
54 | *) | |
55 | libc_interface=-libc5- | |
56 | ;; | |
57 | esac | |
58 | ;; | |
59 | *linux*gnu*) | |
60 | # We have to work harder to figure it out. | |
61 | if [ ${target_alias} = ${build_alias} ] | |
62 | then | |
63 | dummy=if$$ | |
64 | cat >$dummy.c <<EOF | |
65 | #include <features.h> | |
66 | main(argc, argv) | |
67 | int argc; | |
68 | char *argv[]; | |
69 | { | |
70 | printf("%d\n", __GLIBC_MINOR__); | |
71 | return 0; | |
72 | } | |
73 | EOF | |
74 | ${CC-cc} $dummy.c -o $dummy 2>/dev/null | |
75 | if [ "$?" = 0 ] | |
76 | then | |
77 | libc_interface=-libc6.`./$dummy`- | |
78 | rm -f $dummy.c $dummy | |
79 | else | |
80 | # It should never happen. | |
81 | echo "Cannot find the GNU C library minor version number." >&2 | |
82 | rm -f $dummy.c $dummy | |
83 | exit 1 | |
84 | fi | |
85 | else | |
86 | # Cross compiling. Assume glibc 2.1. | |
87 | libc_interface=-libc6.1- | |
88 | fi | |
89 | ;; | |
90 | *) | |
91 | libc_interface=- | |
92 | ;; | |
93 | esac | |
94 | fi |