3 ac_help="--with-pylint[=yes|no|maybe] require and run pylint (maybe)"
7 # Prints prog path to stdout or nothing.
8 local name="$1" result="$2"
9 TLOGN "checking for $name"
10 if ! [ "$result" ]; then
11 result=`acLookFor "$name"`
19 local code="$1" tmpdir rc cflags=''
20 if test -z "$code"; then
21 AC_FAIL "No code provided to test compile"
27 AC_FAIL "Invald call to bup_try_c_code" "$@"
30 tmpdir="$(mktemp -d "bup-try-c-compile-XXXXXXX")" || exit $?
31 echo "$code" > "$tmpdir/test.c" || exit $?
32 $AC_CC -Wall -Werror $cflags -c -o "$tmpdir/test" "$tmpdir/test.c"
34 rm -r "$tmpdir" || exit $?
42 while test $# -gt 0; do
44 --with-pylint=yes) with_pylint=yes; shift;;
45 --with-pylint=maybe) with_pylint=maybe; shift;;
46 --with-pylint=no) with_pylint=no; shift;;
47 *) argv+=("$1"); shift;;
51 # Set $@ to the adjusted args
57 rm -rf finished config/bin config.var config.var.tmp config.vars
62 LOG " You need to have a functional C compiler to build $TARGET"
66 for make_candidate in make gmake; do
67 found_make="$(bup_find_prog "$make_candidate" "$MAKE")"
68 if test "$found_make" \
69 && ("$found_make" --version | grep "GNU Make"); then
75 if ! test "$MAKE"; then
76 AC_FAIL "ERROR: unable to find GNU make as make or gmake"
79 MAKE_VERSION=`$MAKE --version | grep "GNU Make" | awk '{print $3}'`
80 if [ -z "$MAKE_VERSION" ]; then
81 AC_FAIL "ERROR: $MAKE --version does not return sensible output?"
83 expr "$MAKE_VERSION" '>=' '3.81' || AC_FAIL "ERROR: $MAKE must be >= version 3.81"
85 AC_SUB bup_make "$MAKE"
88 # Haven't seen a documented way to determine the python version via
89 # python-config right now, so we'll defer version checking until
92 if test "$BUP_PYTHON_CONFIG"; then
93 bup_python_config="$(type -p "$BUP_PYTHON_CONFIG")"
94 if test -z "$bup_python_config"; then
95 AC_FAIL $(printf "ERROR: BUP_PYTHON_CONFIG value %q appears invalid" \
99 for py_maj_ver in 9 8 7 6; do
100 bup_python_config="$(bup_find_prog "python3.$py_maj_ver-config" '')"
101 test -z "$bup_python_config" || break
103 test -z "$bup_python_config" \
104 && bup_python_config="$(bup_find_prog python3-config '')"
105 test -z "$bup_python_config" \
106 && bup_python_config="$(bup_find_prog python2.7-config '')"
107 if test -z "$bup_python_config"; then
108 AC_FAIL "ERROR: unable to find a suitable python-config"
113 bup_python_cflags=$("$bup_python_config" --cflags) || exit $?
114 bup_python_ldflags=$("$bup_python_config" --ldflags) || exit $?
115 bup_python_cflags_embed=$("$bup_python_config" --cflags --embed)
116 if test $? -eq 0; then
117 bup_python_ldflags_embed=$("$bup_python_config" --ldflags --embed) || exit $?
118 else # Earlier versions didn't support --embed
119 bup_python_cflags_embed=$("$bup_python_config" --cflags) || exit $?
120 bup_python_ldflags_embed=$("$bup_python_config" --ldflags) || exit $?
123 bup_python_cflags="$bup_python_cflags -fPIC"
127 # For at least 10.3+ (2003+)
128 bup_python_ldflags="$bup_python_ldflags -bundle -undefined dynamic_lookup"
131 bup_python_ldflags="$bup_python_ldflags -shared"
135 AC_SUB bup_python_config "$bup_python_config"
136 AC_SUB bup_python_cflags "$bup_python_cflags"
137 AC_SUB bup_python_ldflags "$bup_python_ldflags"
138 AC_SUB bup_python_cflags_embed "$bup_python_cflags_embed"
139 AC_SUB bup_python_ldflags_embed "$bup_python_ldflags_embed"
142 bup_git="$(bup_find_prog git '')"
143 if test -z "$bup_git"; then
144 AC_FAIL "ERROR: unable to find git"
148 AC_CHECK_HEADERS sys/stat.h
149 AC_CHECK_HEADERS sys/types.h
151 # For stat and mincore.
152 AC_CHECK_HEADERS unistd.h
155 AC_CHECK_HEADERS sys/mman.h
157 # For FS_IOC_GETFLAGS and FS_IOC_SETFLAGS.
158 AC_CHECK_HEADERS linux/fs.h
159 AC_CHECK_HEADERS sys/ioctl.h
161 # On GNU/kFreeBSD utimensat is defined in GNU libc, but won't work.
162 if [ -z "$OS_GNU_KFREEBSD" ]; then
163 AC_CHECK_FUNCS utimensat
165 AC_CHECK_FUNCS utimes
166 AC_CHECK_FUNCS lutimes
168 builtin_mul_overflow_code="
170 int main(int argc, char **argv)
172 size_t n = 0, size = 0, total;
173 __builtin_mul_overflow(n, size, &total);
178 TLOGN "checking for __builtin_mul_overflow"
179 if bup_try_c_code "$builtin_mul_overflow_code"; then
180 AC_DEFINE BUP_HAVE_BUILTIN_MUL_OVERFLOW 1
187 AC_CHECK_FUNCS mincore
189 mincore_incore_code="
190 #if 0$ac_defined_HAVE_UNISTD_H
193 #if 0$ac_defined_HAVE_SYS_MMAN_H
194 #include <sys/mman.h>
196 int main(int argc, char **argv)
203 mincore_buf_type_code()
207 #include <sys/mman.h>
208 int main(int argc, char **argv)
212 return mincore(x, 0, buf);
216 if test "$ac_defined_HAVE_MINCORE"; then
217 TLOGN "checking for MINCORE_INCORE"
218 if bup_try_c_code "$mincore_incore_code"; then
219 AC_DEFINE BUP_HAVE_MINCORE_INCORE 1
225 TLOGN "checking mincore buf type"
226 if bup_try_c_code "$(mincore_buf_type_code char)"; then
227 AC_DEFINE BUP_MINCORE_BUF_TYPE 'char'
229 elif bup_try_c_code "$(mincore_buf_type_code 'unsigned char')"; then
230 AC_DEFINE BUP_MINCORE_BUF_TYPE 'unsigned char'
231 TLOG ' (unsigned char)'
233 AC_FAIL "ERROR: unexpected mincore definition; please notify bup-list@googlegroups.com"
238 TLOGN "checking for readline"
240 bup_readline_includes_in_subdir=''
241 bup_readline_via_pkg_config=''
242 # We test this specific thing because it should work everywhere and it was
243 # a particulary problem on macos (we'd get the wrong includes if we just
244 # tested that the includes work).
246 static char *on_completion_entry(const char *text, int state) { return NULL; }
247 void bup_test(void) { rl_completion_entry_function = on_completion_entry; }
249 if pkg-config readline; then
250 bup_readline_cflags="$(pkg-config readline --cflags)" || exit $?
251 bup_readline_ldflags="$(pkg-config readline --libs)" || exit $?
252 # It looks like it's not uncommon for pkg-config to provide a -I
253 # that doesn't support the documentation's specified #include
254 # <readline/readline.h>. See what's really going on.
255 if bup_try_c_code "#include <stdio.h> // required by unpatched readline
256 #include <readline/readline.h>
257 $readline_test_code" \
258 "$bup_readline_cflags"
261 bup_readline_includes_in_subdir=1
262 elif bup_try_c_code "#include <stdio.h> // required by unpatched readline
263 #include <readline.h>
264 $readline_test_code" \
265 "$bup_readline_cflags"
269 if test "$bup_have_readline"; then
270 bup_readline_via_pkg_config=1
272 bup_readline_cflags=''
273 bup_readline_ldflags=''
276 if ! test "$bup_have_readline"; then
277 if bup_try_c_code "#include <readline/readline.h> $readline_test_code"; then
278 bup_readline_ldflags=-lreadline
280 bup_readline_includes_in_subdir=1
281 elif bup_try_c_code "#include <readline.h> $readline_test_code"; then
282 bup_readline_ldflags=-lreadline
286 if test "$bup_have_readline"; then
287 AC_DEFINE BUP_HAVE_READLINE 1
288 if test "$bup_readline_includes_in_subdir"; then
289 AC_DEFINE BUP_READLINE_INCLUDES_IN_SUBDIR 1
291 if test "$bup_readline_via_pkg_config"; then
292 TLOG ' (yes, pkg-config)'
299 AC_SUB bup_readline_cflags "$bup_readline_cflags"
300 AC_SUB bup_readline_ldflags "$bup_readline_ldflags"
301 AC_SUB bup_have_readline "$bup_have_readline"
304 AC_CHECK_FIELD stat st_atim sys/types.h sys/stat.h unistd.h
305 AC_CHECK_FIELD stat st_mtim sys/types.h sys/stat.h unistd.h
306 AC_CHECK_FIELD stat st_ctim sys/types.h sys/stat.h unistd.h
308 AC_CHECK_FIELD stat st_atimensec sys/types.h sys/stat.h unistd.h
309 AC_CHECK_FIELD stat st_mtimensec sys/types.h sys/stat.h unistd.h
310 AC_CHECK_FIELD stat st_ctimensec sys/types.h sys/stat.h unistd.h
312 AC_CHECK_FIELD tm tm_gmtoff time.h
317 TLOGN "checking for libacl"
318 if pkg-config libacl; then
319 bup_libacl_cflags="$(pkg-config libacl --cflags)"
320 bup_libacl_ldflags="$(pkg-config libacl --libs)"
321 TLOG ' (yes, pkg-config)'
324 bup_libacl_ldflags='-lacl'
327 AC_CC="$AC_CC${bup_libacl_cflags:+ $bup_libacl_cflags}"
328 LIBS="$bup_libacl_ldflags"
329 AC_CHECK_HEADERS sys/acl.h
330 AC_CHECK_HEADERS acl/libacl.h
331 AC_CHECK_FUNCS acl_get_file
332 AC_CHECK_FUNCS acl_from_text
333 AC_CHECK_FUNCS acl_set_file
334 # Note: These are linux specific, but we need them (for now?)
335 AC_CHECK_FUNCS acl_extended_file
336 AC_CHECK_FUNCS acl_to_any_text
337 TLOGN "checking for complete acl support"
338 if test "$ac_defined_HAVE_ACL_EXTENDED_FILE"; then
340 AC_SUB bup_libacl_cflags "$bup_libacl_cflags"
341 AC_SUB bup_libacl_ldflags "$bup_libacl_ldflags"
345 AC_SUB bup_have_libacl ''
348 AC_SUB bup_have_libacl "$bup_have_libacl"
352 AC_OUTPUT config.vars
357 mkdir -p config.var.tmp
358 echo -n "$MAKE" > config.var.tmp/bup-make
359 echo -n "$bup_python_config" > config.var.tmp/bup-python-config
360 echo -n "$with_pylint" > config.var.tmp/with-pylint
361 mv config.var.tmp config.var
363 if test -e bin; then rm -r bin; fi
365 (cd bin && ln -s "$MAKE" make)
370 found: python-config (%q)
371 found: git (%q, ($("$bup_git" --version))
373 "$bup_python_config" \
381 if test "$found"; then
387 summarize "$bup_have_readline" 'readline support (e.g. bup ftp)'
388 summarize "$bup_have_libacl" 'POSIX ACL support'