Add simple, experimental Makefile.config support.

* GTK-specific features, such as RSVG and librosprite, can be set to one of
   three options; YES, NO or AUTO.  AUTO will attempt to auto-detect its
   availability and enable it if it is available.
 * Haru PDF export/printing is enabled via this also.  It lacks a pkg-config
   file and works on RISC OS too, and thus has no auto-detection.  Disabling
   it disables the PDF-related menu entries in nsgtk.

svn path=/trunk/netsurf/; revision=4747

Makefile

@@ -34,7 +34,7 @@ all: all-program
 #	In both cases HOST make variable is empty and we recover from that by
 #	assuming we're building on RISC OS.
 #	In case you don't see anything printed (including the warning), you
-#	have an update to date RISC OS build sytem. ;-)
+#	have an update to date RISC OS build system. ;-)
 HOST := $(shell uname -s)
 ifeq ($(HOST),)
 HOST := riscos
@@ -138,6 +138,8 @@ endif
 
 OBJROOT := build-$(HOST)-$(TARGET)$(SUBTARGET)
 
+include Makefile.config
+
 ifeq ($(HOST),riscos)
 LDFLAGS := -Xlinker -symbols=$(OBJROOT)/sym -lxml2 -lz -lm -lcurl -lssl -lcrypto -lmng -ljpeg \
 	-lcares
@@ -151,29 +153,68 @@ else
 LDFLAGS := $(shell $(PKG_CONFIG) --libs libxml-2.0 libcurl openssl)
 endif
 # Common libraries without pkgconfig support:
-LDFLAGS += -lz -lm -lmng -ljpeg -lhpdf -lpng
+LDFLAGS += -lz -lm -lmng -ljpeg -lpng
+ifeq ($(NETSURF_USE_HARU_PDF),YES)
+LDFLAGS += -lhpdf
+CFLAGS += -DWITH_PDF_EXPORT
+endif
 endif
 
 ifeq ($(TARGET),gtk)
 # Building for GTK, we need the GTK flags
 
+FEATURE_CFLAGS :=
+FEATURE_LDFLAGS :=
+
+# 1: Feature name (ie, NETSURF_USE_RSVG -> RSVG)
+# 2: pkg-config required modules for feature
+# 3: Human-readable name for the feature
+define pkg_config_find_and_add
+
+ ifneq ($$(NETSURF_USE_$(1)),NO)
+  NETSURF_FEATURE_$(1)_AVAILABLE := $$(shell pkg-config --exists $(2) && echo yes)
+  ifeq ($$(NETSURF_USE_$(1)),AUTO)
+   ifeq ($$(NETSURF_FEATURE_$(1)_AVAILABLE),yes)
+    NETSURF_USE_$(1) := YES
+   endif
+  endif
+  ifeq ($$(NETSURF_USE_$(1)),YES)
+   ifeq ($$(NETSURF_FEATURE_$(1)_AVAILABLE),yes)
+    FEATURE_CFLAGS += $$(shell pkg-config --cflags $(2)) $$(NETSURF_FEATURE_$(1)_CFLAGS)
+    FEATURE_LDFLAGS += $$(shell pkg-config --libs $(2)) $$(NETSURF_FEATURE_$(1)_LDFLAGS)
+    $$(info Auto-configuration enabled $(3) ($(2)).)
+   else
+    $$(error Unable to find library for: $$(3) ($(2))
+   endif
+  endif
+ endif
+
+endef
+
+# define additional CFLAGS and LDFLAGS requirements for pkg-configed libs here
+NETSURF_FEATURE_RSVG_CFLAGS := -DWITH_RSVG
+NETSURF_FEATURE_ROSPRITE_CFLAGS := -DWITH_NSSPRITE
+
+# add a line similar to below for each optional pkg-configed lib here
+$(eval $(call pkg_config_find_and_add,RSVG,librsvg-2.0,SVG rendering))
+$(eval $(call pkg_config_find_and_add,ROSPRITE,librosprite,RISC OS sprite rendering))
+
 GTKCFLAGS := -std=c99 -Dgtk -Dnsgtk \
 	-DGTK_DISABLE_DEPRECATED \
 	-D_BSD_SOURCE \
 	-D_XOPEN_SOURCE=600 \
 	-D_POSIX_C_SOURCE=200112L \
 	-D_NETBSD_SOURCE \
-	$(WARNFLAGS) -I. -I../../libsprite/trunk/ -g $(OPT2FLAGS) \
-	$(shell $(PKG_CONFIG) --cflags libglade-2.0 gtk+-2.0 librsvg-2.0) \
-	$(shell $(PKG_CONFIG) --cflags librosprite) \
+	$(WARNFLAGS) -I. -g $(OPT2FLAGS) \
+	$(shell $(PKG_CONFIG) --cflags libglade-2.0 gtk+-2.0) \
 	$(shell xml2-config --cflags)
+GTKCFLAGS += $(FEATURE_CFLAGS)
+
+GTKLDFLAGS := $(shell $(PKG_CONFIG) --cflags --libs libglade-2.0 gtk+-2.0 gthread-2.0 gmodule-2.0 lcms)
+GTKLDFLAGS += $(FEATURE_LDFLAGS)
 
-#GTKLDFLAGS := $(shell $(PKG_CONFIG) --cflags --libs libglade-2.0 gtk+-2.0 gthread-2.0 gmodule-2.0 librosprite)
-GTKLDFLAGS := $(shell $(PKG_CONFIG) --cflags --libs libglade-2.0 gtk+-2.0 gthread-2.0 gmodule-2.0 librsvg-2.0 librosprite)
-#CFLAGS += $(GTKCFLAGS) -g
-#LDFLAGS += $(GTKLDFLAGS) $(shell $(PKG_CONFIG) --libs lcms) -lsvgtiny
 CFLAGS += $(GTKCFLAGS)
-LDFLAGS += $(GTKLDFLAGS) $(shell $(PKG_CONFIG) --libs lcms)
+LDFLAGS += $(GTKLDFLAGS)
 
 ifeq ($(HOST),Windows_NT)
 CFLAGS += -U__STRICT_ANSI__

Makefile.config

@@ -0,0 +1,21 @@
+#
+# NetSurf build configuration
+#
+# Some of these options support an 'AUTO' option, as well as YES and NO.  If
+# AUTO is set, the Makefile will attempt to detect if that feature is available
+
+# Use libharu to enable PDF export and GTK printing support.  There is no
+# auto-detection available for this, as it does not have a pkg-config file.
+NETSURF_USE_HARU_PDF=YES
+
+# The following options are GTK-specific
+ifeq ($(TARGET),gtk)
+
+# Use librsvg in conjunction with Cairo to render SVG images
+NETSURF_USE_RSVG=AUTO
+
+# Use James Shaw's librosprite for rendering RISC OS Sprites
+NETSURF_USE_ROSPRITE=AUTO
+
+endif
+

desktop/print.c

@@ -20,6 +20,7 @@
  * Output-in-pages implementation
 */
 
+#ifdef WITH_PDF_EXPORT
 #include "desktop/print.h"
 #include "desktop/printer.h"
 
@@ -278,3 +279,5 @@ struct print_settings *print_make_settings(print_configuration configuration)
 	
 	return settings;	
 }
+
+#endif /* WITH_PDF_EXPORT */

gtk/gtk_print.c

@@ -23,7 +23,9 @@
   * plotters, printer) are here.
   * Most of the plotters have been copied from the gtk_plotters.c file.
   */
- 
+
+#include "utils/config.h"
+#ifdef WITH_PDF_EXPORT 
 
 #include <math.h>
 #include <gdk/gdk.h>
@@ -571,3 +573,5 @@ void gtk_print_signal_end_print(GtkPrintOperation *operation,
 	LOG(("End print"));	
 	print_cleanup(content_to_print, &gtk_printer);
 }
+
+#endif /* WITH_PDF_EXPORT */

gtk/gtk_scaffolding.c

@@ -189,9 +189,11 @@ static struct menu_events menu_events[] = {
 	MENUEVENT(new_window),
 	MENUEVENT(open_location),
 	MENUEVENT(open_file),
+#ifdef WITH_PDF_EXPORT
 	MENUEVENT(export_pdf),
 	MENUEVENT(print),
 	MENUEVENT(print_preview),
+#endif
 	MENUEVENT(close_window),
 	MENUEVENT(quit),
 
@@ -478,6 +480,8 @@ MENUHANDLER(open_file)
 	return TRUE;
 }
 
+#ifdef WITH_PDF_EXPORT
+
 MENUHANDLER(export_pdf){
 
 	GtkWidget *save_dialog;
@@ -558,6 +562,8 @@ MENUHANDLER(print_preview){
 	return TRUE;
 }
 
+#endif /* WITH_PDF_EXPORT */
+
 MENUHANDLER(close_window)
 {
 	struct gtk_scaffolding *gw = (struct gtk_scaffolding *)g;
@@ -1129,8 +1135,15 @@ nsgtk_scaffolding *nsgtk_new_scaffolding(struct gui_window *toplevel)
 	/* hides redundant popup menu items */
 	GList *widgets = glade_xml_get_widget_prefix (g->popup_xml, "menupopup");
 	for (; widgets != NULL; widgets = widgets->next)
-		gtk_widget_hide (GTK_WIDGET(widgets->data));
-			
+		gtk_widget_hide(GTK_WIDGET(widgets->data));
+
+	/* disable PDF-requiring menu items */
+#ifndef WITH_PDF_EXPORT
+	gtk_widget_set_sensitive(GET_WIDGET("export_pdf"), FALSE);
+	gtk_widget_set_sensitive(GET_WIDGET("print"), FALSE);
+	gtk_widget_set_sensitive(GET_WIDGET("print_preview"), FALSE);
+#endif
+
 	/* finally, show the window. */
 	gtk_widget_show(GTK_WIDGET(g->window));
 

pdf/font_haru.c

@@ -22,7 +22,10 @@
   * The functions were written to implement the same interface as the Pango ones
   * so that the usage of the latter wouldn't have to be modified.
   */
- 
+
+#include "utils/config.h"
+#ifdef WITH_PDF_EXPORT
+
 #define FONT_HARU_DEBUG
  
 #include <assert.h> 
@@ -371,3 +374,6 @@ bool haru_nsfont_apply_style(const struct css_style *style,
 	
 	return true;
 }
+
+#endif /* WITH_PDF_EXPORT */
+

pdf/pdf_plotters.c

@@ -22,6 +22,9 @@
  * boundaries a 'fuzzy' bottom margin.
   */
 
+#include "utils/config.h"
+#ifdef WITH_PDF_EXPORT
+
 #include <stdlib.h>
 #include <string.h>
 #include "hpdf.h"
@@ -771,4 +774,6 @@ void pdf_page_apply_notext_clip()
 #endif
 }
 
+#endif /* WITH_PDF_EXPORT */
+
 

utils/config.h

@@ -75,16 +75,11 @@ char *strndup(const char *s, size_t n);
 #else
     /* We're likely to have a working mmap() */
     #define WITH_MMAP
-    #if !defined(DEBUG_BUILD)
-        /* Use librsvg and Cairo for rendering SVG */
-        #define WITH_RSVG
-    #endif
 #endif
 #if defined(riscos) || defined(DEBUG_BUILD)
     /* Export modules */
     #define WITH_SAVE_COMPLETE
     #define WITH_DRAW_EXPORT
-    #define WITH_PDF_EXPORT
 #endif
 
 /* Configuration sanity checks: */