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
|
dnl See how the compiler implements dependency checking.
dnl Usage:
dnl AM_DEPENDENCIES(NAME)
dnl NAME is "CC", "CXX" or "OBJC".
dnl We try a few techniques and use that to set a single cache variable.
AC_DEFUN(AM_DEPENDENCIES,[
AC_REQUIRE([AM_SET_DEPDIR])
AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])
ifelse([$1],CC,[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PROG_CPP])
depcc="$CC"
depcpp="$CPP"],[$1],CXX,[
AC_REQUIRE([AC_PROG_CXX])
AC_REQUIRE([AC_PROG_CXXCPP])
depcc="$CXX"
depcpp="$CXXCPP"],[$1],OBJC,[
am_cv_OBJC_dependencies_compiler_type=gcc],[
AC_REQUIRE([AC_PROG_][$1])
depcc="$[$1]"
depcpp=""])
AC_MSG_CHECKING([dependency style of $depcc])
AC_CACHE_VAL(am_cv_[$1]_dependencies_compiler_type,[
if test -z "$AMDEP"; then
echo '#include "conftest.h"' > conftest.c
echo 'int i;' > conftest.h
am_cv_[$1]_dependencies_compiler_type=none
for depmode in `sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < "$am_depcomp"`; do
case "$depmode" in
nosideeffect)
# after this tag, mechanisms are not by side-effect, so they'll
# only be used when explicitly requested
if test "x$enable_dependency_tracking" = xyes; then
continue
else
break
fi
;;
none) break ;;
esac
if depmode="$depmode" \
source=conftest.c object=conftest.o \
depfile=conftest.Po tmpdepfile=conftest.TPo \
$SHELL $am_depcomp $depcc -c conftest.c 2>/dev/null &&
grep conftest.h conftest.Po > /dev/null 2>&1; then
am_cv_[$1]_dependencies_compiler_type="$depmode"
break
fi
done
rm -f conftest.*
else
am_cv_[$1]_dependencies_compiler_type=none
fi
])
AC_MSG_RESULT($am_cv_[$1]_dependencies_compiler_type)
[$1]DEPMODE="depmode=$am_cv_[$1]_dependencies_compiler_type"
AC_SUBST([$1]DEPMODE)
])
dnl Choose a directory name for dependency files.
dnl This macro is AC_REQUIREd in AM_DEPENDENCIES
AC_DEFUN(AM_SET_DEPDIR,[
if test -d .deps || mkdir .deps 2> /dev/null || test -d .deps; then
DEPDIR=.deps
else
DEPDIR=_deps
fi
AC_SUBST(DEPDIR)
])
AC_DEFUN(AM_DEP_TRACK,[
AC_ARG_ENABLE(dependency-tracking,
[ --disable-dependency-tracking Speeds up one-time builds
--enable-dependency-tracking Do not reject slow dependency extractors])
if test "x$enable_dependency_tracking" = xno; then
AMDEP="#"
else
am_depcomp="$ac_aux_dir/depcomp"
if test ! -f "$am_depcomp"; then
AMDEP="#"
else
AMDEP=
fi
fi
AC_SUBST(AMDEP)
if test -z "$AMDEP"; then
AMDEPBACKSLASH='\'
else
AMDEPBACKSLASH=
fi
pushdef([subst], defn([AC_SUBST]))
subst(AMDEPBACKSLASH)
popdef([subst])
])
|
