configure.ac

   1 AC_PREREQ(2.60)
   2 AC_INIT([kmod],
   3         [19],
   4         [linux-modules@vger.kernel.org],
   5         [kmod],
   6         [http://git.kernel.org/?p=utils/kernel/kmod/kmod.git])
   7
   8 AC_CONFIG_SRCDIR([libkmod/libkmod.c])
   9 AC_CONFIG_AUX_DIR([build-aux])
  10 AM_INIT_AUTOMAKE([check-news foreign 1.11 silent-rules
  11         tar-pax no-dist-gzip dist-xz subdir-objects color-tests parallel-tests])
  12 AC_PROG_CC_STDC
  13 AC_USE_SYSTEM_EXTENSIONS
  14 AC_SYS_LARGEFILE
  15 AC_CONFIG_MACRO_DIR([m4])
  16 m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])])
  17 AM_SILENT_RULES([yes])
  18 LT_INIT([disable-static pic-only])
  19 AC_PREFIX_DEFAULT([/usr])
  20 AM_MAINTAINER_MODE([enable])
  21
  22 AS_IF([test "x$enable_static" = "xyes"],
  23       [AC_MSG_ERROR([--enable-static is not supported by kmod])])
  24
  25
  26 #####################################################################
  27 # Program checks and configurations
  28 #####################################################################
  29
  30 AC_PROG_CC
  31 AC_PROG_CC_C99
  32 AM_PROG_CC_C_O
  33 AC_PROG_GCC_TRADITIONAL
  34 AC_C_BIGENDIAN
  35
  36 AC_PROG_SED
  37 AC_PROG_MKDIR_P
  38 PKG_PROG_PKG_CONFIG
  39 AC_PATH_PROG([XSLTPROC], [xsltproc])
  40
  41
  42 #####################################################################
  43 # Function and structure checks
  44 #####################################################################
  45
  46 AC_CHECK_FUNCS_ONCE(__xstat)
  47 AC_CHECK_FUNCS_ONCE([__secure_getenv secure_getenv])
  48 AC_CHECK_FUNCS_ONCE([finit_module])
  49
  50 CC_CHECK_FUNC_BUILTIN([__builtin_clz])
  51 CC_CHECK_FUNC_BUILTIN([__builtin_types_compatible_p])
  52 CC_CHECK_FUNC_BUILTIN([__builtin_uaddl_overflow], [ ], [ ])
  53 CC_CHECK_FUNC_BUILTIN([__builtin_uaddll_overflow], [ ], [ ])
  54
  55 # dietlibc doesn't have st.st_mtim struct member
  56 AC_CHECK_MEMBERS([struct stat.st_mtim], [], [], [#include <sys/stat.h>])
  57
  58 # musl 1.0 and bionic 4.4 don't have strndupa
  59 AC_CHECK_DECLS_ONCE([strndupa])
  60
  61 # RHEL 5 and older do not have be32toh
  62 AC_CHECK_DECLS_ONCE([be32toh])
  63
  64 # Check kernel headers
  65 AC_CHECK_HEADERS_ONCE([linux/module.h])
  66
  67 AC_MSG_CHECKING([whether _Static_assert() is supported])
  68 AC_COMPILE_IFELSE(
  69         [AC_LANG_SOURCE([[_Static_assert(1, "Test");]])],
  70         [AC_DEFINE([HAVE_STATIC_ASSERT], [1], [Define if _Static_assert() is available])
  71          AC_MSG_RESULT([yes])],
  72         [AC_MSG_RESULT([no])])
  73
  74 #####################################################################
  75 # --with-
  76 #####################################################################
  77
  78 AC_ARG_WITH([rootlibdir],
  79         AS_HELP_STRING([--with-rootlibdir=DIR], [rootfs directory to install shared libraries]),
  80         [], [with_rootlibdir=$libdir])
  81 AC_SUBST([rootlibdir], [$with_rootlibdir])
  82
  83 AC_ARG_WITH([xz],
  84         AS_HELP_STRING([--with-xz], [handle Xz-compressed modules @<:@default=disabled@:>@]),
  85         [], [with_xz=no])
  86 AS_IF([test "x$with_xz" != "xno"], [
  87         PKG_CHECK_MODULES([liblzma], [liblzma >= 4.99])
  88         AC_DEFINE([ENABLE_XZ], [1], [Enable Xz for modules.])
  89 ], [
  90         AC_MSG_NOTICE([Xz support not requested])
  91 ])
  92
  93 AC_ARG_WITH([zlib],
  94         AS_HELP_STRING([--with-zlib], [handle gzipped modules @<:@default=disabled@:>@]),
  95         [], [with_zlib=no])
  96 AS_IF([test "x$with_zlib" != "xno"], [
  97         PKG_CHECK_MODULES([zlib], [zlib])
  98         AC_DEFINE([ENABLE_ZLIB], [1], [Enable zlib for modules.])
  99 ], [
 100         AC_MSG_NOTICE([zlib support not requested])
 101 ])
 102
 103 AC_ARG_WITH([bashcompletiondir],
 104         AS_HELP_STRING([--with-bashcompletiondir=DIR], [Bash completions directory]),
 105         [],
 106         [AS_IF([$($PKG_CONFIG --exists bash-completion)], [
 107                 with_bashcompletiondir=$($PKG_CONFIG --variable=completionsdir bash-completion)
 108         ] , [
 109                 with_bashcompletiondir=${datadir}/bash-completion/completions
 110         ])])
 111 AC_SUBST([bashcompletiondir], [$with_bashcompletiondir])
 112
 113 #####################################################################
 114 # --enable-
 115 #####################################################################
 116
 117 AC_ARG_ENABLE([tools],
 118         AS_HELP_STRING([--disable-tools], [disable building tools that provide same functionality as module-init-tools @<:@default=enabled@:>@]),
 119         [], enable_tools=yes)
 120 AM_CONDITIONAL([BUILD_TOOLS], [test "x$enable_tools" = "xyes"])
 121
 122 AC_ARG_ENABLE([manpages],
 123         AS_HELP_STRING([--disable-manpages], [disable manpages @<:@default=enabled@:>@]),
 124         [], enable_manpages=yes)
 125 AM_CONDITIONAL([BUILD_MANPAGES], [test "x$enable_manpages" = "xyes"])
 126
 127 AC_ARG_ENABLE([logging],
 128         AS_HELP_STRING([--disable-logging], [disable system logging @<:@default=enabled@:>@]),
 129         [], enable_logging=yes)
 130 AS_IF([test "x$enable_logging" = "xyes"], [
 131         AC_DEFINE(ENABLE_LOGGING, [1], [System logging.])
 132 ])
 133
 134 AC_ARG_ENABLE([debug],
 135         AS_HELP_STRING([--enable-debug], [enable debug messages @<:@default=disabled@:>@]),
 136         [], [enable_debug=no])
 137 AS_IF([test "x$enable_debug" = "xyes"], [
 138         AC_DEFINE(ENABLE_DEBUG, [1], [Debug messages.])
 139 ])
 140
 141 AC_ARG_ENABLE([python],
 142         AS_HELP_STRING([--enable-python], [enable Python libkmod bindings @<:@default=disabled@:>@]),
 143         [], [enable_python=no])
 144 AS_IF([test "x$enable_python" = "xyes"], [
 145         AM_PATH_PYTHON(,,[:])
 146         AC_PATH_PROG([CYTHON], [cython], [:])
 147
 148         PKG_CHECK_MODULES([PYTHON], [python-${PYTHON_VERSION}],
 149                           [have_python=yes],
 150                           [PKG_CHECK_MODULES([PYTHON], [python],
 151                                              [have_python=yes],
 152                                              [have_python=no])])
 153
 154         AS_IF([test "x$have_python" = xno],
 155               [AC_MSG_ERROR([*** python support requested but libraries not found])])
 156 ])
 157 AM_CONDITIONAL([BUILD_PYTHON], [test "x$enable_python" = "xyes"])
 158
 159 AC_ARG_ENABLE([coverage],
 160         AS_HELP_STRING([--enable-coverage], [enable test coverage @<:@default=disabled@:>@]),
 161         [], [enable_coverage=no])
 162 AS_IF([test "x$enable_coverage" = "xyes"], [
 163         AC_CHECK_PROG(have_coverage, [lcov], [yes], [no])
 164         AS_IF([test "x$have_coverage" = xno],[
 165                 AC_MSG_ERROR([*** lcov support requested but the program was not found])
 166         ], [
 167                 lcov_version_major="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 1`"
 168                 lcov_version_minor="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 2`"
 169                 AS_IF([test "$lcov_version_major" -lt 1 -o "$lcov_version_minor" -lt 10], [
 170                         AC_MSG_ERROR([*** lcov version is too old. 1.10 required])
 171                 ], [
 172                         have_coverage=yes
 173                         CC_CHECK_FLAGS_APPEND([with_coverage_cflags], [CFLAGS], [\
 174                         -fprofile-arcs \
 175                         -ftest-coverage])
 176                 ])
 177         ])
 178 ])
 179 AM_CONDITIONAL([ENABLE_COVERAGE], [test "x$enable_coverage" = "xyes"])
 180
 181 m4_ifdef([GTK_DOC_CHECK], [
 182 GTK_DOC_CHECK([1.14],[--flavour no-tmpl-flat])
 183 ], [
 184 AM_CONDITIONAL([ENABLE_GTK_DOC], false)])
 185
 186
 187 #####################################################################
 188 # Default CFLAGS and LDFLAGS
 189 #####################################################################
 190
 191 CC_CHECK_FLAGS_APPEND(with_cflags, [CFLAGS], [\
 192                        -pipe \
 193                        -DANOTHER_BRICK_IN_THE \
 194                        -Wall \
 195                        -W \
 196                        -Wextra \
 197                        -Wno-inline \
 198                        -Wvla \
 199                        -Wundef \
 200                        -Wformat=2 \
 201                        -Wlogical-op \
 202                        -Wsign-compare \
 203                        -Wformat-security \
 204                        -Wmissing-include-dirs \
 205                        -Wformat-nonliteral \
 206                        -Wold-style-definition \
 207                        -Wpointer-arith \
 208                        -Winit-self \
 209                        -Wdeclaration-after-statement \
 210                        -Wfloat-equal \
 211                        -Wmissing-prototypes \
 212                        -Wstrict-prototypes \
 213                        -Wredundant-decls \
 214                        -Wmissing-declarations \
 215                        -Wmissing-noreturn \
 216                        -Wshadow \
 217                        -Wendif-labels \
 218                        -Wstrict-aliasing=3 \
 219                        -Wwrite-strings \
 220                        -Wno-long-long \
 221                        -Wno-overlength-strings \
 222                        -Wno-unused-parameter \
 223                        -Wno-missing-field-initializers \
 224                        -Wno-unused-result \
 225                        -Wnested-externs \
 226                        -Wchar-subscripts \
 227                        -Wtype-limits \
 228                        -Wuninitialized \
 229                        -fno-common \
 230                        -fdiagnostics-show-option \
 231                        -fvisibility=hidden \
 232                        -ffunction-sections \
 233                        -fdata-sections])
 234 AC_SUBST([OUR_CFLAGS], "$with_cflags $with_coverage_cflags")
 235
 236
 237 CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [ \
 238                        -Wl,--as-needed \
 239                        -Wl,--no-undefined \
 240                        -Wl,--gc-sections])
 241 AC_SUBST([OUR_LDFLAGS], $with_ldflags)
 242
 243 #####################################################################
 244 # Generate files from *.in
 245 #####################################################################
 246
 247 AC_CONFIG_HEADERS(config.h)
 248 AC_CONFIG_FILES([
 249         Makefile
 250         man/Makefile
 251         libkmod/docs/Makefile
 252         libkmod/docs/version.xml
 253 ])
 254
 255
 256 #####################################################################
 257
 258 AC_OUTPUT
 259 AC_MSG_RESULT([
 260         $PACKAGE $VERSION
 261         =======
 262
 263         prefix:                 ${prefix}
 264         sysconfdir:             ${sysconfdir}
 265         libdir:                 ${libdir}
 266         rootlibdir:             ${rootlibdir}
 267         includedir:             ${includedir}
 268         bindir:                 ${bindir}
 269         Bash completions dir:   ${with_bashcompletiondir}
 270
 271         compiler:               ${CC}
 272         cflags:                 ${with_cflags} ${CFLAGS}
 273         ldflags:                ${with_ldflags} ${LDFLAGS}
 274
 275         tools:                  ${enable_tools}
 276         python bindings:        ${enable_python}
 277         logging:                ${enable_logging}
 278         compression:            xz=${with_xz}  zlib=${with_zlib}
 279         debug:                  ${enable_debug}
 280         coverage:               ${enable_coverage}
 281         doc:                    ${enable_gtk_doc}
 282         man:                    ${enable_manpages}
 283 ])