X-Git-Url: http://git.draconx.ca/gitweb/liblbx.git/blobdiff_plain/be64118e899f438a3fc1667bef49d0d82e521e6e..fba9c8ad290c71471cdb8b52d1c5f0e4eb1fb83e:/acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000..89db997
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,229 @@
+dnl Borrowed from Transcode (http://www.transcoding.org/cgi-bin/transcode)
+
+dnl PKG_INIT(rptfile, errfile)
+dnl
+AC_DEFUN([PKG_INIT],
+[
+pkg_err="no"
+pkg_err_file="pkg_err_file"
+pkg_rpt_file="pkg_rpt_file"
+
+if test x"$1" != x"" ; then
+  pkg_rpt_file="$1"
+fi
+echo -n > $pkg_rpt_file
+
+if test x"$2" != x"" ; then
+  pkg_err_file="$2"
+fi
+echo -n > $pkg_err_file
+])
+
+
+dnl PKG_ERROR(name, object, req-enable, pkg, url, [error message])
+AC_DEFUN([PKG_ERROR],
+[
+pkg_err="yes"
+this_pkg_err="yes"
+
+prob=""
+if test x"$3" = x"required" ; then
+  prob="requirement failed"
+else
+  prob="option '--enable-$1' failed"
+fi
+
+cat >> $pkg_err_file <<EOF
+ERROR: $prob: $6
+$2 can be found in the following packages:
+  $4  $5
+
+EOF
+])
+
+
+dnl PKG_CHECK(pkg-name, def-enabled, var-name, pkgconfig-name, conf-script,
+dnl     header, lib, symbol)
+dnl Test for pkg-name, and define var-name_CFLAGS and var-name_LIBS
+dnl   and HAVE_var-name if found
+dnl
+dnl 1 name          name of package; required (pkg-config name if applicable)
+dnl 2 req-enable    enable  by default, 'required', 'yes' or 'no'; required
+dnl 3 var-name      name stub for variables, preferably uppercase; required
+dnl 4 conf-script   name of "-config" script or 'no'
+dnl 5 header        header file to check or 'none'
+dnl 6 lib           library to check or 'none'
+dnl 7 symbol        symbol from the library to check or ''
+dnl 8 pkg           package (pkg-config name if applicable)
+dnl 9 url           homepage for the package
+
+AC_DEFUN([PKG_CHECK],
+[
+if test x"$2" != x"required" ; then
+  AC_MSG_CHECKING([whether $1 support is requested])
+  AC_ARG_ENABLE($1,
+    AC_HELP_STRING([--enable-$1],
+      [build with $1 support ($2)]),
+    [case "${enableval}" in
+      yes) ;;
+      no)  ;;
+      *) AC_MSG_ERROR(bad value ${enableval} for --enable-$1) ;;
+    esac],
+    enable_$1="$2")
+  AC_MSG_RESULT($enable_$1)
+else
+  enable_$1="yes"
+fi
+
+AC_ARG_WITH($1-prefix,
+  AC_HELP_STRING([--with-$1-prefix=PFX],
+    [prefix where $1 is installed (/usr)]),
+  w_$1_p="$withval", w_$1_p="")
+
+AC_ARG_WITH($1-includes,
+  AC_HELP_STRING([--with-$1-includes=DIR],
+    [directory where $1 headers ($5) are installed (/usr/include)]),
+  w_$1_i="$withval", w_$1_i="")
+
+AC_ARG_WITH($1-libs,
+  AC_HELP_STRING([--with-$1-libs=DIR],
+    [directory where $1 libararies (lib$6.so) are installed (/usr/lib)]),
+  w_$1_l="$withval", w_$1_l="")
+
+have_$1="no"
+this_pkg_err="no"
+
+if test x"$enable_$1" = x"yes" ; then
+
+  dnl pkg-config
+
+  pkg_config_$1="no"
+  AC_MSG_CHECKING([for pkgconfig support for $1])
+  if test x"$PKG_CONFIG" != x"no" ; then
+    if $PKG_CONFIG $8 --exists ; then
+      pkg_config_$1="yes"
+    fi
+  fi
+  AC_MSG_RESULT($pkg_config_$1)
+
+  dnl *-config
+
+  if test x"$4" != x"no" ; then
+    if test x"$w_$1_p" != x"" ; then
+      if test -x $w_$1_p/bin/$4 ; then
+        $1_config="$w_$1_p/bin/$4"
+      fi
+    fi
+    AC_PATH_PROG($1_config, $4, no)
+  else
+    $1_config="no"
+  fi
+
+  # get and test the _CFLAGS
+
+  AC_MSG_CHECKING([how to determine $3_CFLAGS])
+  if test x"$w_$1_i" != x"" ; then
+    $1_ii="-I$w_$1_i"
+    AC_MSG_RESULT(user)
+  else
+    if test x"$pkg_config_$1" != x"no" ; then
+      $1_ii="`$PKG_CONFIG $8 --cflags`"
+      AC_MSG_RESULT(pkg-config)
+    else
+      if test x"$$1_config" != x"no" ; then
+        $1_ii="`$$1_config --cflags`"
+        AC_MSG_RESULT($$1_config)
+      else
+        if test x"$w_$1_p" != x"" ; then
+          $1_ii="-I$w_$1_p/include"
+          AC_MSG_RESULT(prefix)
+        else
+          $1_ii="-I/usr/include"
+          AC_MSG_RESULT(default)
+        fi
+      fi
+    fi
+  fi
+  ipaths="" ; xi=""
+  for i in $$1_ii ; do
+    case $i in
+      -I*) ipaths="$ipaths $i" ;;
+        *) xi="$xi $i" ;;
+    esac
+  done
+  $1_ii="$ipaths"
+  $1_ii="`echo $$1_ii | sed -e 's/  */ /g'`"
+  $3_EXTRA_CFLAGS="$$3_EXTRA_CFLAGS $xi"
+  $3_EXTRA_CFLAGS="`echo $$3_EXTRA_CFLAGS | sed -e 's/  */ /g'`"
+
+  if test x"$5" != x"none" ; then
+    save_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $$1_ii"
+    AC_CHECK_HEADER([$5],
+      [$3_CFLAGS="$$1_ii"],
+      [PKG_ERROR($1, $5, $2, $8, $9, [cannot compile $5])])
+    CPPFLAGS="$save_CPPFLAGS"
+  fi
+
+  # get and test the _LIBS
+
+  AC_MSG_CHECKING([how to determine $3_LIBS])
+  if test x"$w_$1_l" != x"" ; then
+    $1_ll="-L$w_$1_l"
+    AC_MSG_RESULT(user)
+  else
+    if test x"$pkg_config_$1" != x"no" ; then
+      $1_ll="`$PKG_CONFIG $8 --libs`"
+      AC_MSG_RESULT(pkg-config)
+    else
+      if test x"$$1_config" != x"no" ; then
+        $1_ll="`$$1_config --libs`"
+        AC_MSG_RESULT($$1_config)
+      else
+        if test x"$w_$1_p" != x"" ; then
+          $1_ll="-L$w_$1_p${deflib}"
+          AC_MSG_RESULT(prefix)
+        else
+          $1_ll="-L/usr${deflib}"
+          AC_MSG_RESULT(default)
+        fi
+      fi
+    fi
+  fi
+  lpaths="" ; xlibs="" ; xlf=""
+  for l in $$1_ll ; do
+    case $l in
+      -L*) lpaths="$lpaths $l" ;;
+      -l*) test x"$l" != x"-l$6" && xlibs="$xlibs $l" ;;
+        *) xlf="$xlf $l" ;;
+    esac
+  done
+  $1_ll="$lpaths"
+  $1_ll="`echo $$1_ll | sed -e 's/  */ /g'`"
+  xl=""
+  for i in $xlibs $xlf ; do
+    echo " $$3_EXTRA_LIBS " | grep -vq " $i " && xl="$xl $i"
+  done
+  $3_EXTRA_LIBS="$$3_EXTRA_LIBS $xl"
+  $3_EXTRA_LIBS="`echo $$3_EXTRA_LIBS | sed -e 's/  */ /g'`"
+
+  if test x"$6" != x"none" ; then
+    save_LDFLAGS="$LDFLAGS"
+    LDFLAGS="$LDFLAGS $$1_ll"
+    AC_CHECK_LIB([$6], [$7],
+      [$3_LIBS="$$1_ll -l$6 $$3_EXTRA_LIBS"],
+      [PKG_ERROR($1, lib$6, $2, $8, $9, [cannot link against lib$6])],
+      [$$3_EXTRA_LIBS])
+    LDFLAGS="$save_LDFLAGS"
+  fi
+
+  if test x"$this_pkg_err" = x"no" ; then
+    have_$1="yes"
+  fi
+
+else
+  $3_CFLAGS=""
+  $3_LIBS=""  
+fi
+])
+