configure.ac

   1 AC_PREREQ(2.60)
   2 AC_INIT([kmod],
   3         [1],
   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_ENABLE([tools],
  31         AS_HELP_STRING([--disable-tools], [disable building tools that provide same functionality as module-init-tools @<:@default=enabled@:>@]),
  32         [], enable_tools=yes)
  33 AM_CONDITIONAL([BUILD_TOOLS], [test "x$enable_tools" = "xyes"])
  34
  35 AC_ARG_ENABLE([logging],
  36         AS_HELP_STRING([--disable-logging], [disable system logging @<:@default=enabled@:>@]),
  37         [], enable_logging=yes)
  38 AS_IF([test "x$enable_logging" = "xyes"], [
  39         AC_DEFINE(ENABLE_LOGGING, [1], [System logging.])
  40 ])
  41
  42 AC_ARG_ENABLE([zlib],
  43         AS_HELP_STRING([--enable-zlib], [handle gzipped modules (options: static or dynamic) @<:@default=disabled@:>@]),
  44         [], enable_zlib=no)
  45 if test "x$enable_zlib" = "xyes" -o "x$enable_zlib" = "xstatic"; then
  46         enable_zlib="static"
  47         zlib_libs="-Wl,-Bstatic -lz -Wl,-Bdynamic"
  48         SAVE_LIBS="${LIBS}"
  49         LIBS="${LIBS} ${zlib_libs}"
  50         AC_MSG_CHECKING([if static zlib exists])
  51         AC_LINK_IFELSE([AC_LANG_PROGRAM([[
  52                 #include <zlib.h>
  53         ]], [[
  54                 gzFile f = gzopen("/tmp", "rb");
  55         ]])],
  56         [have_zlib=yes], [have_zlib=no])
  57         LIBS="${SAVE_LIBS}"
  58         AC_MSG_RESULT([$have_zlib])
  59         if test "x$have_zlib" != "xyes"; then
  60                 zlib_libs=""
  61                 AC_MSG_ERROR([static zlib is not present])
  62         fi
  63 elif test "x$enable_zlib" = "xdynamic"; then
  64         AC_CHECK_LIB([z], [gzopen],
  65                 [
  66                         zlib_libs="-lz"
  67                         required_private_libs="${required_private_libs} ${zlib_libs}"
  68                 ],
  69                 [AC_MSG_ERROR([dynamic zlib is not present])])
  70 else
  71         AC_MSG_NOTICE([zlib support not requested])
  72         zlib_libs=""
  73 fi
  74 if test "x$zlib_libs" != "x"; then
  75         AC_DEFINE(ENABLE_ZLIB, [1], [Enable zlib for modules.])
  76 fi
  77 AC_SUBST(zlib_libs)
  78
  79 AC_ARG_ENABLE([debug],
  80         AS_HELP_STRING([--enable-debug], [enable debug messages @<:@default=disabled@:>@]),
  81         [], [enable_debug=no])
  82 AS_IF([test "x$enable_debug" = "xyes"], [
  83         AC_DEFINE(ENABLE_DEBUG, [1], [Debug messages.])
  84 ])
  85
  86 CC_CHECK_CFLAGS_APPEND([ \
  87                         -pipe \
  88                         -Wall \
  89                         -W \
  90                         -Wextra \
  91                         -Wno-inline \
  92                         -Wvla \
  93                         -Wundef \
  94                         -Wformat=2 \
  95                         -Wlogical-op \
  96                         -Wsign-compare \
  97                         -Wformat-security \
  98                         -Wmissing-include-dirs \
  99                         -Wformat-nonliteral \
 100                         -Wold-style-definition \
 101                         -Wpointer-arith \
 102                         -Winit-self \
 103                         -Wdeclaration-after-statement \
 104                         -Wfloat-equal \
 105                         -Wmissing-prototypes \
 106                         -Wstrict-prototypes \
 107                         -Wredundant-decls \
 108                         -Wmissing-declarations \
 109                         -Wmissing-noreturn \
 110                         -Wshadow \
 111                         -Wendif-labels \
 112                         -Wcast-align \
 113                         -Wstrict-aliasing=2 \
 114                         -Wwrite-strings \
 115                         -Wno-long-long \
 116                         -Wno-overlength-strings \
 117                         -Wno-unused-parameter \
 118                         -Wno-missing-field-initializers \
 119                         -Wno-unused-result \
 120                         -Wnested-externs \
 121                         -Wchar-subscripts \
 122                         -Wtype-limits \
 123                         -Wuninitialized \
 124                         -Wp,-D_FORTIFY_SOURCE=2 \
 125                         -ffast-math \
 126                         -fno-common \
 127                         -fdiagnostics-show-option \
 128                         -fno-strict-aliasing \
 129                         -fvisibility=hidden \
 130                         -ffunction-sections \
 131                         -fdata-sections \
 132                         -Wl,--as-needed \
 133                         -Wl,--gc-sections])
 134
 135
 136 AC_SUBST(required_private_libs)
 137
 138 AC_CONFIG_HEADERS(config.h)
 139 AC_CONFIG_FILES([
 140         Makefile
 141         libkmod/libkmod.pc
 142 ])
 143
 144 AC_OUTPUT
 145 AC_MSG_RESULT([
 146         $PACKAGE $VERSION
 147         ========
 148
 149         prefix:                 ${prefix}
 150         sysconfdir:             ${sysconfdir}
 151         libdir:                 ${libdir}
 152         includedir:             ${includedir}
 153         bindir:                 ${bindir}
 154
 155         compiler:               ${CC}
 156         cflags:                 ${CFLAGS}
 157         ldflags:                ${LDFLAGS}
 158
 159         tools:                  ${enable_tools}
 160         logging:                ${enable_logging}
 161         zlib:                   ${enable_zlib}
 162         debug:                  ${enable_debug}
 163 ])