Added C plugin code from plugins branch

configure.ac

@@ -2,14 +2,16 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_INIT([profanity], [0.5.0], [boothj5web@gmail.com])
+AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR([src/main.c])
 AC_CONFIG_HEADERS([src/config.h])
-AC_CONFIG_AUX_DIR([build-aux])
 AM_INIT_AUTOMAKE([foreign subdir-objects])
+AX_PREFIX_CONFIG_H([src/prof_config.h], [PROF], [src/config.h])
 
 ### Checks for programs.
 AC_PROG_CC
+AC_PROG_LIBTOOL
 
 ## Check for LFS
 AC_SYS_LARGEFILE
@@ -43,6 +45,10 @@ AS_IF([test "x$PLATFORM" = xosx],
 ### Options
 AC_ARG_ENABLE([notifications],
     [AS_HELP_STRING([--enable-notifications], [enable desktop notifications])])
+AC_ARG_ENABLE([c-plugins],
+    [AS_HELP_STRING([--enable-c-plugins], [enable C plugins])])
+AC_ARG_ENABLE([plugins],
+    [AS_HELP_STRING([--enable-plugins], [enable plugins])])
 AC_ARG_ENABLE([otr],
     [AS_HELP_STRING([--enable-otr], [enable otr encryption])])
 AC_ARG_ENABLE([pgp],
@@ -52,6 +58,23 @@ AC_ARG_WITH([xscreensaver],
 AC_ARG_WITH([themes],
     [AS_HELP_STRING([--with-themes[[=PATH]]], [install themes (default yes)])])
 
+### plugins
+# c
+LT_INIT
+if test "x$enable_plugins" = xno; then
+    AM_CONDITIONAL([BUILD_C_API], [false])
+elif test "x$enable_c_plugins" != xno; then
+    AC_CHECK_LIB([dl], [main],
+        [AM_CONDITIONAL([BUILD_C_API], [true]) LIBS="$LIBS -ldl" AC_DEFINE([HAVE_C], [1], [C support])],
+        [AS_IF(
+            [test "x$enable_c_plugins" = xyes],
+                [AC_MSG_ERROR([dl library needed to run C plugins])],
+            [AM_CONDITIONAL([BUILD_C_API], [false])])
+        ])
+else
+    AM_CONDITIONAL([BUILD_C_API], [false])
+fi
+
 ### Check for libmesode, fall back to libstrophe
 PKG_CHECK_MODULES([libmesode], [libmesode],
     [LIBS="$libmesode_LIBS $LIBS" CFLAGS="$CFLAGS $libmesode_CFLAGS" AC_DEFINE([HAVE_LIBMESODE], [1], [libmesode])],
@@ -208,10 +231,12 @@ AC_CHECK_HEADERS([ncurses.h], [], [])
 AM_CFLAGS="-Wall -Wno-deprecated-declarations"
 AS_IF([test "x$PACKAGE_STATUS" = xdevelopment],
     [AM_CFLAGS="$AM_CFLAGS -Wunused -Werror"])
+AM_LDFLAGS="$AM_LDFLAGS -export-dynamic"
 AM_CPPFLAGS="$AM_CPPFLAGS $glib_CFLAGS $curl_CFLAGS $libnotify_CFLAGS"
 AM_CPPFLAGS="$AM_CPPFLAGS -DTHEMES_PATH=\"\\\"$THEMES_PATH\\\"\""
 LIBS="$glib_LIBS $curl_LIBS $libnotify_LIBS $LIBS"
 
+AC_SUBST(AM_LDFLAGS)
 AC_SUBST(AM_CFLAGS)
 AC_SUBST(AM_CPPFLAGS)
 
@@ -226,6 +251,7 @@ echo "PLATFORM       : $host_os"
 echo "PACKAGE_STATUS : $PACKAGE_STATUS"
 echo "AM_CFLAGS      : $AM_CFLAGS"
 echo "AM_CPPFLAGS    : $AM_CPPFLAGS"
+echo "AM_LDFLAGS     : $AM_LDFLAGS"
 echo "LIBS           : $LIBS"
 echo "XML Parser     : $PARSER"
 echo "Install themes : $THEMES_INSTALL"