configure.ac

   1 AC_PREREQ(2.60)
   2 AC_INIT([kmod],
   3         [2],
   4         [linux-modules@vger.kernel.org],
   5         [kmod],
   6         [http://git.profusion.mobi/cgit.cgi/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])
  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
  21 AC_PROG_CC
  22 AC_PROG_CC_C99
  23 AC_C_TYPEOF
  24 AM_PROG_CC_C_O
  25 AC_PROG_GCC_TRADITIONAL
  26 AC_C_BIGENDIAN
  27
  28 required_private_libs=""
  29
  30 AC_ARG_WITH([rootprefix],
  31         AS_HELP_STRING([--with-rootprefix=DIR], [rootfs directory prefix for config files and kernel modules]),
  32         [], [with_rootprefix=""])
  33 AC_SUBST([rootprefix], [$with_rootprefix])
  34
  35 AC_ARG_ENABLE([tools],
  36         AS_HELP_STRING([--disable-tools], [disable building tools that provide same functionality as module-init-tools @<:@default=enabled@:>@]),
  37         [], enable_tools=yes)
  38 AM_CONDITIONAL([BUILD_TOOLS], [test "x$enable_tools" = "xyes"])
  39
  40 AC_ARG_ENABLE([logging],
  41         AS_HELP_STRING([--disable-logging], [disable system logging @<:@default=enabled@:>@]),
  42         [], enable_logging=yes)
  43 AS_IF([test "x$enable_logging" = "xyes"], [
  44         AC_DEFINE(ENABLE_LOGGING, [1], [System logging.])
  45 ])
  46
  47 AC_ARG_ENABLE([zlib],
  48         AS_HELP_STRING([--enable-zlib], [handle gzipped modules @<:@default=disabled@:>@]),
  49         [], enable_zlib=no)
  50 if test "x$enable_zlib" != "xno"; then
  51         AC_CHECK_LIB([z], [gzopen],
  52                 [
  53                         zlib_libs="-lz"
  54                         required_private_libs="${required_private_libs} ${zlib_libs}"
  55                 ],
  56                 [AC_MSG_ERROR([zlib is not present])])
  57 else
  58         AC_MSG_NOTICE([zlib support not requested])
  59         zlib_libs=""
  60 fi
  61 if test "x$zlib_libs" != "x"; then
  62         AC_DEFINE(ENABLE_ZLIB, [1], [Enable zlib for modules.])
  63 fi
  64 AC_SUBST(zlib_libs)
  65
  66 AC_ARG_ENABLE([debug],
  67         AS_HELP_STRING([--enable-debug], [enable debug messages @<:@default=disabled@:>@]),
  68         [], [enable_debug=no])
  69 AS_IF([test "x$enable_debug" = "xyes"], [
  70         AC_DEFINE(ENABLE_DEBUG, [1], [Debug messages.])
  71 ])
  72
  73 CC_CHECK_CFLAGS_APPEND([ \
  74                         -pipe \
  75                         -Wall \
  76                         -W \
  77                         -Wextra \
  78                         -Wno-inline \
  79                         -Wvla \
  80                         -Wundef \
  81                         -Wformat=2 \
  82                         -Wlogical-op \
  83                         -Wsign-compare \
  84                         -Wformat-security \
  85                         -Wmissing-include-dirs \
  86                         -Wformat-nonliteral \
  87                         -Wold-style-definition \
  88                         -Wpointer-arith \
  89                         -Winit-self \
  90                         -Wdeclaration-after-statement \
  91                         -Wfloat-equal \
  92                         -Wmissing-prototypes \
  93                         -Wstrict-prototypes \
  94                         -Wredundant-decls \
  95                         -Wmissing-declarations \
  96                         -Wmissing-noreturn \
  97                         -Wshadow \
  98                         -Wendif-labels \
  99                         -Wcast-align \
 100                         -Wstrict-aliasing=2 \
 101                         -Wwrite-strings \
 102                         -Wno-long-long \
 103                         -Wno-overlength-strings \
 104                         -Wno-unused-parameter \
 105                         -Wno-missing-field-initializers \
 106                         -Wno-unused-result \
 107                         -Wnested-externs \
 108                         -Wchar-subscripts \
 109                         -Wtype-limits \
 110                         -Wuninitialized \
 111                         -fno-common \
 112                         -fdiagnostics-show-option \
 113                         -fvisibility=hidden \
 114                         -ffunction-sections \
 115                         -fdata-sections \
 116                         -Wl,--as-needed \
 117                         -Wl,--gc-sections])
 118
 119
 120 AC_SUBST(required_private_libs)
 121
 122 AC_CONFIG_HEADERS(config.h)
 123 AC_CONFIG_FILES([
 124         Makefile
 125         libkmod/libkmod.pc
 126 ])
 127
 128 AC_OUTPUT
 129 AC_MSG_RESULT([
 130         $PACKAGE $VERSION
 131         ========
 132
 133         prefix:                 ${prefix}
 134         rootprefix:             ${rootprefix}
 135         sysconfdir:             ${sysconfdir}
 136         libdir:                 ${libdir}
 137         includedir:             ${includedir}
 138         bindir:                 ${bindir}
 139
 140         compiler:               ${CC}
 141         cflags:                 ${CFLAGS}
 142         ldflags:                ${LDFLAGS}
 143
 144         tools:                  ${enable_tools}
 145         logging:                ${enable_logging}
 146         zlib:                   ${enable_zlib}
 147         debug:                  ${enable_debug}
 148 ])