Log library for C++ CodeGit

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dnl @synopsis AC_CONFIG_PKGCONFIG_IN [(LIBRARY [, DESCRIPTION [, DESTINATION]])]
dnl
dnl Creates a custom pkg-config script.  The script supports
dnl --cflags, --libs and --version options.
dnl
dnl This macro saves you all the typing for a pkg-config.in script;
dnl you don't even need to distribute one along. Place this macro
dnl in your configure.ac, et voila, you got one that you want to install.
dnl
dnl The options:
dnl
dnl  $1 = LIBRARY       e.g. gtk, ncurses
dnl  $2 = DESCRIPTION    one line description of library
dnl  $3 = DESTINATION   directory path, e.g. src/scripts
dnl
dnl It is suggested that the following CFLAGS and LIBS variables are
dnl used in your configure.ac.  library_libs is *essential*.
dnl library_cflags is important, but not always needed.  If they do not
dnl exist, defaults will be taken from LIBRARY_CFLAGS, LIBRARY_LIBS
dnl (should be -llibrary *only*) and LIBRARY_LIBDEPS (-l options for
dnl libraries your library depends upon.
dnl LIBLIBRARY_LIBS is simply $LIBRARY_LIBS $LIBRARY_LIBDEPS.
dnl NB. LIBRARY and library are the name of your library, in upper and
dnl lower case repectively e.g. GTK, gtk.
dnl
dnl  LIBRARY_CFLAGS:    cflags for compiling libraries and example progs
dnl  LIBRARY_LIBS:      libraries for linking programs
dnl  LIBRARY_LIBDEPS*:  libraries for linking libraries against (needed
dnl                     to link -static
dnl  LIBRARY_REQUIRES:  packages required by your library
dnl  LIBRARY_CONFLICTS: packages to conflict with your library
dnl  library_cflags*:   cflags to store in library-config
dnl  library_libs*:     libs to store in library-config
dnl  LIBLIBRARY_LIBS:   libs to link programs IN THIS PACKAGE ONLY against
dnl  LIBRARY_VERSION*:  the version of your library (x.y.z recommended)
dnl    *=required if you want sensible output, otherwise they will be
dnl      *guessed* (DWIM, but usually correct)
dnl
dnl There is also an AC_SUBST(LIBRARY_PKGCONFIG) that will be set to
dnl the name of the file that we output in this macro. Use as:
dnl
dnl  install-data-local: install-pkgconfig
dnl  install-pkgconfig:
dnl     $(mkinstalldirs) $(DESTDIR)$(bindir)
dnl     $(INSTALL_DATA) @LIBRARY_PKGCONFIG@ $(DESTDIR)$(prefix)/lib/pkgconfig
dnl
dnl Or, if using automake:
dnl
dnl  pkgconfigdatadir = $(prefix)/lib/pkgconfig
dnl  pkgconfigdata_DATA = gimpprint.pc = @LIBRARY_PKGCONFIG@
dnl
dnl Example usage:
dnl
dnl  GIMPPPRINT_LIBS="-lgimpprint"
dnl  AC_CHECK_LIB(m,pow,
dnl               GIMPPRINT_DEPLIBS="${GIMPPRINT_DEPLIBS} -lm")
dnl  AC_CONFIG_PKGCONFIG_IN([gimpprint], [GIMP Print Top Quality Printer Drivers], [src/main])
dnl
dnl @version $Id$
dnl @author Roger Leigh <roger@whinlatter.uklinux.net>
dnl
## AC_CONFIG_PKGCONFIG_IN(LIBRARY, DESCRIPTION, DESTINATION)
## ---------------------------------------------------------
## Create a custom pkg-config script for LIBRARY.  Include a one-line
## DESCRIPTION.  The script will be created in a DESTINATION
## directory.
AC_DEFUN([AC_CONFIG_PKGCONFIG_IN],
[# create a custom pkg-config file ($1.pc.in)
m4_pushdef([PKGCONFIG_DIR], [m4_if([$3], , , [$3/])])
PKGCONFIG_FILE="PKGCONFIG_DIR[]$1.pc.in"
AC_SUBST(target)dnl
AC_SUBST(host)dnl
AC_SUBST(build)dnl
dnl create directory if it does not preexist
m4_if([$3], , , [AS_MKDIR_P([$3])])
AC_MSG_NOTICE([creating $PKGCONFIG_FILE])
dnl we're going to need uppercase, lowercase and user-friendly versions of the
dnl string `MODULE'
m4_pushdef([MODULE_UP], m4_translit([$1], [a-z], [A-Z]))dnl
m4_pushdef([MODULE_DOWN], m4_translit([$1], [A-Z], [a-z]))dnl
if test -z "$MODULE_DOWN[]_cflags" ; then
  if test -n "$MODULE_UP[]_CFLAGS" ; then
      MODULE_DOWN[]_cflags="$MODULE_UP[]_CFLAGS"
  else
dnl    AC_MSG_WARN([variable `MODULE_DOWN[]_cflags' undefined])
    MODULE_DOWN[]_cflags=''
  fi
fi
AC_SUBST(MODULE_DOWN[]_cflags)dnl
if test -z "$MODULE_DOWN[]_libs" ; then
  if test -n "$MODULE_UP[]_LIBS" ; then
    MODULE_DOWN[]_libs="$MODULE_UP[]_LIBS"
  else
    AC_MSG_WARN([variable `MODULE_DOWN[]_libs' and `MODULE_UP[]_LIBS' undefined])
    MODULE_DOWN[]_libs='-l$1'
  fi
  if test -n "$MODULE_UP[]_LIBDEPS" ; then
    MODULE_DOWN[]_libs="$MODULE_DOWN[]_libs $MODULE_UP[]_LIBDEPS"
  fi
fi
AC_SUBST(MODULE_DOWN[]_libs)dnl
AC_SUBST(MODULE_UP[]_REQUIRES)
AC_SUBST(MODULE_UP[]_CONFLICTS)
if test -z "$MODULE_UP[]_VERSION" ; then
  AC_MSG_WARN([variable `MODULE_UP[]_VERSION' undefined])
  MODULE_UP[]_VERSION="$VERSION"
fi
AC_SUBST(MODULE_UP[]_VERSION)dnl
echo 'prefix=@prefix@' >$PKGCONFIG_FILE
echo 'exec_prefix=@exec_prefix@' >>$PKGCONFIG_FILE
echo 'libdir=@libdir@' >>$PKGCONFIG_FILE
echo 'includedir=@includedir@' >>$PKGCONFIG_FILE
echo '' >>$PKGCONFIG_FILE
echo 'Name: @PACKAGE@' >>$PKGCONFIG_FILE
echo 'Description: $2' >>$PKGCONFIG_FILE
if test -n "$MODULE_UP[]_REQUIRES" ; then
  echo 'Requires: @MODULE_UP[]_REQUIRES@' >>$PKGCONFIG_FILE
fi
if test -n "$MODULE_UP[]_CONFLICTS" ; then
  echo 'Conflicts: @MODULE_UP[]_CONFLICTS@' >>$PKGCONFIG_FILE
fi
echo 'Version: @VERSION@' >>$PKGCONFIG_FILE
echo 'Libs: -L${libdir} @MODULE_DOWN[]_libs@' >>$PKGCONFIG_FILE
echo 'Cflags: -I${includedir} @MODULE_DOWN[]_cflags@' >>$PKGCONFIG_FILE
m4_pushdef([PKGCONFIG_UP], [m4_translit([$1], [a-z], [A-Z])])dnl
PKGCONFIG_UP[]_PKGCONFIG="PKGCONFIG_DIR[]$1-config"
AC_SUBST(PKGCONFIG_UP[]_PKGCONFIG)
dnl AC_CONFIG_FILES(PKGCONFIG_DIR[]$1[-config], [chmod +x ]PKGCONFIG_DIR[]$1[-config])
m4_popdef([PKGCONFIG_UP])
m4_popdef([MODULE_DOWN])dnl
m4_popdef([MODULE_UP])dnl
m4_popdef([PKGCONFIG_DIR])dnl
])