configure.ac

   1 AC_PREREQ(2.59)
   2 AC_INIT([EXIF library], [0.6.17.1], [libexif-devel@lists.sourceforge.net], [libexif])
   3 AC_CONFIG_SRCDIR([libexif/exif-data.h])
   4 AC_CONFIG_HEADERS([config.h])
   5 AC_CONFIG_MACRO_DIR([auto-m4])
   6 AM_INIT_AUTOMAKE([-Wall gnu 1.9 dist-bzip2 dist-zip check-news])
   7
   8 if test ! -d "$srcdir/m4m"; then
   9 AC_MSG_ERROR([
  10 You are missing the m4m/ directory in your top
  11 $PACKAGE_TARNAME source directory.
  12
  13 You are probably using an ill-maintained CVS tree.
  14 Running
  15
  16     cd $srcdir
  17     cvs co m4m
  18
  19 and re-running autogen.sh might help.
  20 ])
  21 fi
  22
  23 GP_CHECK_SHELL_ENVIRONMENT
  24 GP_CONFIG_MSG([Build])
  25 GP_CONFIG_MSG([Source code location],[${srcdir}])
  26
  27 dnl ---------------------------------------------------------------------------
  28 dnl Advanced information about versioning:
  29 dnl   * "Writing shared libraries" by Mike Hearn
  30 dnl         http://navi.cx/~mike/writing-shared-libraries.html
  31 dnl   * libtool.info chapter "Versioning"
  32 dnl   * libtool.info chapter "Updating library version information"
  33 dnl ---------------------------------------------------------------------------
  34 dnl Versioning:
  35 dnl  - CURRENT (Major):  Increment if the interface has changes. AGE is always
  36 dnl                      *changed* at the same time.
  37 dnl  - AGE (Micro):      Increment if any interfaces have been added; set to 0
  38 dnl                      if any interfaces have been removed. Removal has
  39 dnl                      precedence over adding, so set to 0 if both happened.
  40 dnl                      It denotes upward compatibility.
  41 dnl  - REVISION (Minor): Increment any time the source changes; set to
  42 dnl                      0 if you incremented CURRENT.
  43 dnl
  44 dnl  To summarize. Any interface *change* increment CURRENT. If that interface
  45 dnl  change does not break upward compatibility (ie it is an addition),
  46 dnl  increment AGE, Otherwise AGE is reset to 0. If CURRENT has changed,
  47 dnl  REVISION is set to 0, otherwise REVISION is incremented.
  48 dnl ---------------------------------------------------------------------------
  49 dnl C:A:R
  50 dnl 12:0:1   0.6.13
  51 dnl 13:1:0   added EXIF_DATA_OPTION_DONT_CHANGE_MAKER_NOTE (for 0.6.14)
  52 dnl 14:2:0   added XP_ WinXP tags (for 0.6.15)
  53 dnl 14:2:1   0.6.17
  54 LIBEXIF_CURRENT=14
  55 LIBEXIF_AGE=2
  56 LIBEXIF_REVISION=1
  57 AC_SUBST([LIBEXIF_AGE])
  58 AC_SUBST([LIBEXIF_REVISION])
  59 AC_SUBST([LIBEXIF_CURRENT])
  60 AC_SUBST([LIBEXIF_CURRENT_MIN],[`expr $LIBEXIF_CURRENT - $LIBEXIF_AGE`])
  61 LIBEXIF_VERSION_INFO="$LIBEXIF_CURRENT:$LIBEXIF_REVISION:$LIBEXIF_AGE"
  62 AC_SUBST([LIBEXIF_VERSION_INFO])
  63
  64 AC_PROG_CC
  65 AC_C_CONST
  66 dnl FIXME: AC_LIBTOOL_WIN32_DLL
  67 AM_PROG_LIBTOOL
  68 AM_CPPFLAGS="$CPPFLAGS"
  69 GP_CONFIG_MSG([Compiler],[${CC}])
  70
  71
  72 dnl Create a stdint.h-like file containing size-specific integer definitions
  73 dnl that will always be available
  74 AX_NEED_STDINT_H([libexif/_stdint.h])
  75
  76
  77 dnl ------------------------------------------------------------------------
  78 dnl Whether we're supposed to ship binaries in the tarball
  79 dnl ------------------------------------------------------------------------
  80
  81 ship_binaries=false
  82 AC_ARG_ENABLE([ship-binaries],
  83 [AS_HELP_STRING([--enable-ship-binaries],
  84 [Whether to ship binaries in the tarball [default=no]])],[
  85         if test x$enableval = xyes; then
  86                 ship_binaries=true
  87         fi
  88 ])
  89 AM_CONDITIONAL([SHIP_BINARIES],[$ship_binaries])
  90 GP_CONFIG_MSG([Ship binaries in tarball],[$ship_binaries])
  91
  92
  93 dnl ---------------------------------------------------------------------------
  94 dnl Whether -lm is required for our math functions
  95 dnl ---------------------------------------------------------------------------
  96
  97 # we need sqrt and pow, but checking for sqrt should be sufficient
  98 AC_ARG_VAR([MATHLIBS],[The libraries required for mathematical functions, e.g. -lm])
  99 if test "x$MATHLIBS" = "x"; then
 100         # We must not compile with -Wall -Werror here:
 101         # char *sqrt() conflicts with double sin(const double xx) in any case.
 102         CFLAGS_save="$CFLAGS"
 103         CPPFLAGS_save="$CPPFLAGS"
 104         CPPFLAGS=""
 105         CFLAGS=""
 106         AC_CHECK_FUNC([sqrt],[
 107                 MATHLIBS=""
 108         ],[
 109                 AC_CHECK_LIB([m],[sqrt],[
 110                         MATHLIBS="-lm"
 111                 ],[
 112                         AC_MSG_ERROR([
 113 *** Could not find sqrt() function
 114 ])
 115                 ])
 116         ])
 117         CFLAGS="$CFLAGS_save"
 118         CPPFLAGS="$CPPFLAGS_save"
 119 fi
 120 AC_SUBST([MATHLIBS])
 121
 122
 123 # doc support
 124 GP_CHECK_DOC_DIR
 125 GP_CHECK_DOXYGEN
 126
 127 # Whether to enable the internal docs build.
 128 #
 129 # This takes quite some time due to the generation of lots of call
 130 # graphs, so it is disabled by default.
 131 set_enable_internal_docs=no
 132 AC_ARG_ENABLE([internal-docs], [dnl
 133 AS_HELP_STRING([--enable-internal-docs],
 134 [Build internal code docs if doxygen available])], [dnl
 135 dnl If either --enable-foo nor --disable-foo were given, execute this.
 136   if   test "x$enableval" = xno \
 137     || test "x$enableval" = xoff \
 138     || test "x$enableval" = xfalse;
 139   then
 140     set_enable_internal_docs=no
 141   elif test "x$enableval" = xyes \
 142     || test "x$enableval" = xon \
 143     || test "x$enableval" = xtrue
 144   then
 145     set_enable_internal_docs=yes
 146   fi
 147 ])
 148 AC_MSG_CHECKING([whether to create internal code docs])
 149 AC_MSG_RESULT([${set_enable_internal_docs}])
 150 AM_CONDITIONAL([ENABLE_INTERNAL_DOCS], [test "x${set_enable_internal_docs}" = "xyes"])
 151
 152
 153 # ---------------------------------------------------------------------------
 154 # i18n support
 155 # ---------------------------------------------------------------------------
 156 ALL_LINGUAS="cs de en_CA es fr nl pl ru sk sv vi"
 157 AM_PO_SUBDIRS
 158 GP_GETTEXT_HACK([${PACKAGE}-${LIBEXIF_CURRENT_MIN}],
 159                 [Lutz Mueller and others])
 160 AM_GNU_GETTEXT_VERSION([0.14.1])
 161 AM_GNU_GETTEXT([external])
 162 AM_ICONV()
 163 GP_GETTEXT_FLAGS()
 164
 165
 166 dnl ---------------------------------------------------------------------------
 167 dnl Thread-safe functions
 168 dnl ---------------------------------------------------------------------------
 169 AC_CHECK_FUNCS(localtime_r)
 170
 171 dnl ---------------------------------------------------------------------------
 172 dnl Compiler/Linker Options and Warnings
 173 dnl ---------------------------------------------------------------------------
 174 AM_CPPFLAGS="$AM_CPPFLAGS -I\$(top_srcdir)"
 175 AM_CPPFLAGS="$AM_CPPFLAGS -I\$(top_builddir)"
 176 AM_LDFLAGS="$LDFLAGS"
 177 if test "x$GCC" = "xyes"; then
 178     AM_CFLAGS="$AM_CFLAGS -ansi -pedantic-error"
 179     AM_CXXFLAGS="$AM_CXXFLAGS -ansi -pedantic-error"
 180     AM_CPPFLAGS="$AM_CPPFLAGS -g -Wall -Wmissing-declarations -Wmissing-prototypes"
 181     AM_LDFLAGS="$AM_LDFLAGS -g -Wall"
 182 fi
 183
 184
 185
 186 AC_SUBST(AM_CPPFLAGS)
 187 AC_SUBST(AM_LDFLAGS)
 188
 189
 190 dnl ---------------------------------------------------------------------------
 191 dnl Output files
 192 dnl ---------------------------------------------------------------------------
 193 AC_CONFIG_FILES([  po/Makefile.in
 194   Makefile
 195   libexif.spec
 196   libexif/Makefile
 197   test/Makefile
 198   test/nls/Makefile
 199   m4m/Makefile
 200   doc/Makefile
 201   doc/Doxyfile
 202   doc/Doxyfile-internals
 203   libexif.pc
 204   libexif-uninstalled.pc
 205   binary/Makefile
 206   contrib/Makefile
 207 ])
 208 AC_OUTPUT
 209
 210 GP_CONFIG_OUTPUT