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1AC_PREREQ(2.64)
2AC_INIT([kmod],
3	[24],
4	[linux-modules@vger.kernel.org],
5	[kmod],
6	[http://git.kernel.org/?p=utils/kernel/kmod/kmod.git])
7
8AC_CONFIG_SRCDIR([libkmod/libkmod.c])
9AC_CONFIG_MACRO_DIR([m4])
10AC_CONFIG_HEADERS(config.h)
11AC_CONFIG_AUX_DIR([build-aux])
12
13AC_USE_SYSTEM_EXTENSIONS
14AC_SYS_LARGEFILE
15AC_PREFIX_DEFAULT([/usr])
16AM_MAINTAINER_MODE([enable])
17AM_INIT_AUTOMAKE([check-news foreign 1.11 silent-rules tar-pax no-dist-gzip dist-xz subdir-objects color-tests parallel-tests])
18AM_SILENT_RULES([yes])
19LT_INIT([disable-static pic-only])
20DOLT
21
22AS_IF([test "x$enable_static" = "xyes"], [AC_MSG_ERROR([--enable-static is not supported by kmod])])
23AS_IF([test "x$enable_largefile" = "xno"], [AC_MSG_ERROR([--disable-largefile is not supported by kmod])])
24
25#####################################################################
26# Program checks and configurations
27#####################################################################
28
29AC_PROG_SED
30AC_PROG_MKDIR_P
31AC_PROG_LN_S
32PKG_PROG_PKG_CONFIG
33AC_PATH_PROG([XSLTPROC], [xsltproc])
34
35AC_PROG_CC_C99
36
37#####################################################################
38# Function and structure checks
39#####################################################################
40
41AC_CHECK_FUNCS_ONCE(__xstat)
42AC_CHECK_FUNCS_ONCE([__secure_getenv secure_getenv])
43AC_CHECK_FUNCS_ONCE([finit_module])
44
45CC_CHECK_FUNC_BUILTIN([__builtin_clz])
46CC_CHECK_FUNC_BUILTIN([__builtin_types_compatible_p])
47CC_CHECK_FUNC_BUILTIN([__builtin_uaddl_overflow], [ ], [ ])
48CC_CHECK_FUNC_BUILTIN([__builtin_uaddll_overflow], [ ], [ ])
49
50# dietlibc doesn't have st.st_mtim struct member
51AC_CHECK_MEMBERS([struct stat.st_mtim], [], [], [#include <sys/stat.h>])
52
53# musl 1.0 and bionic 4.4 don't have strndupa
54AC_CHECK_DECLS_ONCE([strndupa])
55
56# RHEL 5 and older do not have be32toh
57AC_CHECK_DECLS_ONCE([be32toh])
58
59# Check kernel headers
60AC_CHECK_HEADERS_ONCE([linux/module.h])
61
62AC_MSG_CHECKING([whether _Static_assert() is supported])
63AC_COMPILE_IFELSE(
64	[AC_LANG_SOURCE([[_Static_assert(1, "Test");]])],
65        [AC_DEFINE([HAVE_STATIC_ASSERT], [1], [Define if _Static_assert() is available])
66	 AC_MSG_RESULT([yes])],
67	[AC_MSG_RESULT([no])])
68
69AC_MSG_CHECKING([whether _Noreturn is supported])
70AC_COMPILE_IFELSE(
71	[AC_LANG_SOURCE([[_Noreturn int foo(void) { exit(0); }]])],
72        [AC_DEFINE([HAVE_NORETURN], [1], [Define if _Noreturn is available])
73	 AC_MSG_RESULT([yes])],
74	[AC_MSG_RESULT([no])])
75
76
77#####################################################################
78# --with-
79#####################################################################
80
81AC_ARG_WITH([rootlibdir],
82        AS_HELP_STRING([--with-rootlibdir=DIR], [rootfs directory to install shared libraries]),
83        [], [with_rootlibdir=$libdir])
84AC_SUBST([rootlibdir], [$with_rootlibdir])
85
86AC_ARG_WITH([xz],
87	AS_HELP_STRING([--with-xz], [handle Xz-compressed modules @<:@default=disabled@:>@]),
88	[], [with_xz=no])
89AS_IF([test "x$with_xz" != "xno"], [
90	PKG_CHECK_MODULES([liblzma], [liblzma >= 4.99])
91	AC_DEFINE([ENABLE_XZ], [1], [Enable Xz for modules.])
92], [
93	AC_MSG_NOTICE([Xz support not requested])
94])
95CC_FEATURE_APPEND([with_features], [with_xz], [XZ])
96
97AC_ARG_WITH([zlib],
98	AS_HELP_STRING([--with-zlib], [handle gzipped modules @<:@default=disabled@:>@]),
99	[], [with_zlib=no])
100AS_IF([test "x$with_zlib" != "xno"], [
101	PKG_CHECK_MODULES([zlib], [zlib])
102	AC_DEFINE([ENABLE_ZLIB], [1], [Enable zlib for modules.])
103], [
104	AC_MSG_NOTICE([zlib support not requested])
105])
106CC_FEATURE_APPEND([with_features], [with_zlib], [ZLIB])
107
108AC_ARG_WITH([bashcompletiondir],
109	AS_HELP_STRING([--with-bashcompletiondir=DIR], [Bash completions directory]),
110	[],
111	[AS_IF([$($PKG_CONFIG --exists bash-completion)], [
112		with_bashcompletiondir=$($PKG_CONFIG --variable=completionsdir bash-completion)
113	] , [
114		with_bashcompletiondir=${datadir}/bash-completion/completions
115	])])
116AC_SUBST([bashcompletiondir], [$with_bashcompletiondir])
117
118#####################################################################
119# --enable-
120#####################################################################
121
122AC_ARG_ENABLE([experimental],
123        AS_HELP_STRING([--enable-experimental], [enable experimental tools and features. Do not enable it unless you know what you are doing. @<:@default=disabled@:>@]),
124        [], enable_experimental=no)
125AM_CONDITIONAL([BUILD_EXPERIMENTAL], [test "x$enable_experimental" = "xyes"])
126AS_IF([test "x$enable_experimental" = "xyes"], [
127	AC_DEFINE(ENABLE_EXPERIMENTAL, [1], [Experimental features.])
128])
129CC_FEATURE_APPEND([with_features], [enable_experimental], [EXPERIMENTAL])
130
131AC_ARG_ENABLE([tools],
132        AS_HELP_STRING([--disable-tools], [disable building tools that provide same functionality as module-init-tools @<:@default=enabled@:>@]),
133	[], enable_tools=yes)
134AM_CONDITIONAL([BUILD_TOOLS], [test "x$enable_tools" = "xyes"])
135
136AC_ARG_ENABLE([manpages],
137        AS_HELP_STRING([--disable-manpages], [disable manpages @<:@default=enabled@:>@]),
138	[], enable_manpages=yes)
139AM_CONDITIONAL([BUILD_MANPAGES], [test "x$enable_manpages" = "xyes"])
140
141AC_ARG_ENABLE([test-modules],
142        AS_HELP_STRING([--disable-test-modules], [disable building test modules during make check: cached modules will be used @<:@default=enabled@:>@]),
143	[], enable_test_modules=yes)
144AM_CONDITIONAL([BUILD_MODULES], [test "x$enable_test_modules" = "xyes"])
145
146AC_ARG_ENABLE([logging],
147	AS_HELP_STRING([--disable-logging], [disable system logging @<:@default=enabled@:>@]),
148	[], enable_logging=yes)
149AS_IF([test "x$enable_logging" = "xyes"], [
150	AC_DEFINE(ENABLE_LOGGING, [1], [System logging.])
151])
152
153AC_ARG_ENABLE([debug],
154	AS_HELP_STRING([--enable-debug], [enable debug messages @<:@default=disabled@:>@]),
155	[], [enable_debug=no])
156AS_IF([test "x$enable_debug" = "xyes"], [
157	AC_DEFINE(ENABLE_DEBUG, [1], [Debug messages.])
158])
159
160AC_ARG_ENABLE([python],
161	AS_HELP_STRING([--enable-python], [enable Python libkmod bindings @<:@default=disabled@:>@]),
162	[], [enable_python=no])
163AS_IF([test "x$enable_python" = "xyes"], [
164	AM_PATH_PYTHON(,,[:])
165	AC_PATH_PROG([CYTHON], [cython], [:])
166
167	PKG_CHECK_MODULES([PYTHON], [python-${PYTHON_VERSION}],
168			  [have_python=yes],
169			  [PKG_CHECK_MODULES([PYTHON], [python],
170					     [have_python=yes],
171					     [have_python=no])])
172
173	AS_IF([test "x$have_python" = xno],
174	      [AC_MSG_ERROR([*** python support requested but libraries not found])])
175])
176AM_CONDITIONAL([BUILD_PYTHON], [test "x$enable_python" = "xyes"])
177
178AC_ARG_ENABLE([coverage],
179	AS_HELP_STRING([--enable-coverage], [enable test coverage @<:@default=disabled@:>@]),
180	[], [enable_coverage=no])
181AS_IF([test "x$enable_coverage" = "xyes"], [
182	AC_CHECK_PROG(have_coverage, [lcov], [yes], [no])
183	AS_IF([test "x$have_coverage" = xno],[
184		AC_MSG_ERROR([*** lcov support requested but the program was not found])
185	], [
186		lcov_version_major="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 1`"
187		lcov_version_minor="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 2`"
188		AS_IF([test "$lcov_version_major" -lt 1 -o "$lcov_version_minor" -lt 10], [
189			AC_MSG_ERROR([*** lcov version is too old. 1.10 required])
190		], [
191			have_coverage=yes
192                        CC_CHECK_FLAGS_APPEND([with_coverage_cflags], [CFLAGS], [\
193                        -fprofile-arcs \
194                        -ftest-coverage])
195		])
196        ])
197])
198AM_CONDITIONAL([ENABLE_COVERAGE], [test "x$enable_coverage" = "xyes"])
199
200m4_ifdef([GTK_DOC_CHECK], [
201GTK_DOC_CHECK([1.14],[--flavour no-tmpl-flat])
202], [
203AM_CONDITIONAL([ENABLE_GTK_DOC], false)])
204
205
206#####################################################################
207# Default CFLAGS and LDFLAGS
208#####################################################################
209
210CC_CHECK_FLAGS_APPEND(with_cflags, [CFLAGS], [\
211		       -pipe \
212		       -DANOTHER_BRICK_IN_THE \
213		       -Wall \
214		       -W \
215		       -Wextra \
216		       -Wno-inline \
217		       -Wvla \
218		       -Wundef \
219		       -Wformat=2 \
220		       -Wlogical-op \
221		       -Wsign-compare \
222		       -Wformat-security \
223		       -Wmissing-include-dirs \
224		       -Wformat-nonliteral \
225		       -Wold-style-definition \
226		       -Wpointer-arith \
227		       -Winit-self \
228		       -Wdeclaration-after-statement \
229		       -Wfloat-equal \
230		       -Wmissing-prototypes \
231		       -Wstrict-prototypes \
232		       -Wredundant-decls \
233		       -Wmissing-declarations \
234		       -Wmissing-noreturn \
235		       -Wshadow \
236		       -Wendif-labels \
237		       -Wstrict-aliasing=3 \
238		       -Wwrite-strings \
239		       -Wno-long-long \
240		       -Wno-overlength-strings \
241		       -Wno-unused-parameter \
242		       -Wno-missing-field-initializers \
243		       -Wno-unused-result \
244		       -Wnested-externs \
245		       -Wchar-subscripts \
246		       -Wtype-limits \
247		       -Wuninitialized \
248		       -fno-common \
249		       -fdiagnostics-show-option \
250		       -fvisibility=hidden \
251		       -ffunction-sections \
252		       -fdata-sections])
253AC_SUBST([OUR_CFLAGS], "$with_cflags $with_coverage_cflags")
254
255
256CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [ \
257		       -Wl,--as-needed \
258		       -Wl,--no-undefined \
259		       -Wl,--gc-sections])
260AC_SUBST([OUR_LDFLAGS], $with_ldflags)
261
262AC_DEFINE_UNQUOTED(KMOD_FEATURES, ["$with_features"], [Features in this build])
263
264#####################################################################
265# Generate files from *.in
266#####################################################################
267
268AC_CONFIG_FILES([
269	Makefile
270	man/Makefile
271	libkmod/docs/Makefile
272	libkmod/docs/version.xml
273])
274
275
276#####################################################################
277
278AC_OUTPUT
279AC_MSG_RESULT([
280	$PACKAGE $VERSION
281	=======
282
283	prefix:			${prefix}
284	sysconfdir:		${sysconfdir}
285	libdir:			${libdir}
286	rootlibdir:		${rootlibdir}
287	includedir:		${includedir}
288	bindir:			${bindir}
289	Bash completions dir:   ${with_bashcompletiondir}
290
291	compiler:		${CC}
292	cflags:			${with_cflags} ${CFLAGS}
293	ldflags:		${with_ldflags} ${LDFLAGS}
294
295	experimental features:  ${enable_experimental}
296	tools:			${enable_tools}
297	python bindings:	${enable_python}
298	logging:		${enable_logging}
299	compression:		xz=${with_xz}  zlib=${with_zlib}
300	debug:			${enable_debug}
301	coverage:		${enable_coverage}
302	doc:			${enable_gtk_doc}
303	man:			${enable_manpages}
304	test-modules:           ${enable_test_modules}
305
306	features:               ${with_features}
307])
308