From ad050208b960aad6f767a7673abacc0e67d6a75c Mon Sep 17 00:00:00 2001
From: Michael Jumper <mike.jumper@guac-dev.org>
Date: Thu, 27 Jun 2013 11:20:10 -0700
Subject: [PATCH] Add libgs dependency, only compile guac_rdpdr if libgs found.

---
 configure.ac                  | 13 +++++
 src/protocols/rdp/Makefile.am | 99 +++++++++++++++++++----------------
 2 files changed, 68 insertions(+), 44 deletions(-)

diff --git a/configure.ac b/configure.ac
index defb541a..faa069eb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,6 +103,18 @@ have_pango=yes
 PKG_CHECK_MODULES([PANGO], [pango],, [have_pango=no]);
 PKG_CHECK_MODULES([PANGOCAIRO], [pangocairo],, [have_pango=no]);
 
+#
+# GhostScript
+#
+
+have_libgs=yes
+GS_LIBS=
+
+AC_CHECK_LIB([gs], [gsapi_new_instance], [GS_LIBS="$GS_LIBS -lgs"], [have_libgs=no])
+AM_CONDITIONAL([ENABLE_GS], [test "x${have_libgs}" = "xyes"])
+
+AC_SUBST(GS_LIBS)
+
 #
 # libVNCServer
 #
@@ -165,6 +177,7 @@ $PACKAGE_NAME version $PACKAGE_VERSION
 
      freerdp ............. ${have_freerdp}
      pango ............... ${have_pango}
+     libgs ............... ${have_libgs}
      libssh .............. ${have_libssh}
      libVNCServer ........ ${have_libvncserver}
      libvorbisenc ........ ${have_vorbisenc}
diff --git a/src/protocols/rdp/Makefile.am b/src/protocols/rdp/Makefile.am
index e7795779..c9662731 100644
--- a/src/protocols/rdp/Makefile.am
+++ b/src/protocols/rdp/Makefile.am
@@ -40,54 +40,46 @@ ACLOCAL_AMFLAGS = -I m4
 AM_CFLAGS = -Werror -Wall -Iinclude @LIBGUAC_INCLUDE@
 
 lib_LTLIBRARIES = libguac-client-rdp.la
-freerdp_LTLIBRARIES = guac_rdpsnd.la guac_rdpdr.la
+freerdp_LTLIBRARIES = guac_rdpsnd.la
 
 libguac_client_rdp_la_SOURCES = \
-	audio.c                     \
-	client.c                    \
-	default_pointer.c           \
-	guac_handlers.c             \
-	rdp_bitmap.c                \
-	rdp_cliprdr.c               \
-	rdp_gdi.c                   \
-	rdp_glyph.c                 \
-	rdp_keymap_base.c           \
-	rdp_keymap.c                \
-	rdp_keymap_de_de.c          \
-	rdp_keymap_failsafe.c       \
-	rdp_keymap_fr_fr.c          \
-	rdp_keymap_en_us.c          \
-	rdp_pointer.c               \
-	wav_encoder.c
+    audio.c                     \
+    client.c                    \
+    default_pointer.c           \
+    guac_handlers.c             \
+    rdp_bitmap.c                \
+    rdp_cliprdr.c               \
+    rdp_gdi.c                   \
+    rdp_glyph.c                 \
+    rdp_keymap_base.c           \
+    rdp_keymap.c                \
+    rdp_keymap_de_de.c          \
+    rdp_keymap_failsafe.c       \
+    rdp_keymap_fr_fr.c          \
+    rdp_keymap_en_us.c          \
+    rdp_pointer.c               \
+    wav_encoder.c
 
 guac_rdpsnd_la_SOURCES =          \
-	guac_rdpsnd/rdpsnd_messages.c \
-	guac_rdpsnd/rdpsnd_service.c  \
-	audio.c
-
-guac_rdpdr_la_SOURCES =         \
-	guac_rdpdr/rdpdr_messages.c \
-	guac_rdpdr/rdpdr_printer.c  \
-	guac_rdpdr/rdpdr_service.c
+    guac_rdpsnd/rdpsnd_messages.c \
+    guac_rdpsnd/rdpsnd_service.c  \
+    audio.c
 
 noinst_HEADERS =                     \
-	guac_rdpdr/rdpdr_messages.h      \
-	guac_rdpdr/rdpdr_printer.h       \
-	guac_rdpdr/rdpdr_service.h       \
-	guac_rdpsnd/rdpsnd_messages.h    \
-	guac_rdpsnd/rdpsnd_service.h     \
-	audio.h                          \
-	client.h                         \
-	config.h                         \
-	default_pointer.h                \
-	guac_handlers.h                  \
-	rdp_bitmap.h                     \
-	rdp_cliprdr.h                    \
-	rdp_gdi.h                        \
-	rdp_glyph.h                      \
-	rdp_keymap.h                     \
-	rdp_pointer.h                    \
-	wav_encoder.h
+    guac_rdpsnd/rdpsnd_messages.h    \
+    guac_rdpsnd/rdpsnd_service.h     \
+    audio.h                          \
+    client.h                         \
+    config.h                         \
+    default_pointer.h                \
+    guac_handlers.h                  \
+    rdp_bitmap.h                     \
+    rdp_cliprdr.h                    \
+    rdp_gdi.h                        \
+    rdp_glyph.h                      \
+    rdp_keymap.h                     \
+    rdp_pointer.h                    \
+    wav_encoder.h
 
 # Compile OGG support if available
 if ENABLE_OGG
@@ -95,13 +87,32 @@ if ENABLE_OGG
     noinst_HEADERS += ogg_encoder.h
 endif
 
+# Compile guac_rdpdr if PDF support available
+if ENABLE_GS
+
+    freerdp_LTLIBRARIES += guac_rdpdr.la
+
+    guac_rdpdr_la_SOURCES =         \
+        guac_rdpdr/rdpdr_messages.c \
+        guac_rdpdr/rdpdr_printer.c  \
+        guac_rdpdr/rdpdr_service.c
+
+
+    noinst_HEADERS +=                    \
+        guac_rdpdr/rdpdr_messages.h      \
+        guac_rdpdr/rdpdr_printer.h       \
+        guac_rdpdr/rdpdr_service.h
+
+    guac_rdpdr_la_LDFLAGS = -module -avoid-version -shared @RDP_LIBS@ @PTHREAD_LIBS@
+    guac_rdpdr_la_LIBADD = @LIBGUAC_LTLIB@
+
+endif
+
 libguac_client_rdp_la_LDFLAGS = -version-info 0:0:0 @RDP_LIBS@ @VORBIS_LIBS@ @PTHREAD_LIBS@
 guac_rdpsnd_la_LDFLAGS = -module -avoid-version -shared @RDP_LIBS@ @VORBIS_LIBS@ @PTHREAD_LIBS@
-guac_rdpdr_la_LDFLAGS = -module -avoid-version -shared @RDP_LIBS@ @PTHREAD_LIBS@
 
 libguac_client_rdp_la_LIBADD = @LIBGUAC_LTLIB@
 guac_rdpsnd_la_LIBADD = @LIBGUAC_LTLIB@
-guac_rdpdr_la_LIBADD = @LIBGUAC_LTLIB@
 
 freerdpdir = ${libdir}/freerdp