[librsvg] build: Add common autotools module for introspection under MSVC



commit 09d742735dc1f62798776ce251b3861e31d77c55
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Thu Dec 17 15:42:14 2015 +0800

    build: Add common autotools module for introspection under MSVC
    
    This adds a common autotools module that is used to generate the
    full command line for generating the .gir files for librsvg and
    under Visual Studio's NMake, as well as the file lists of files that
    are to be passed into the introspection scanner.  This is exactly the
    same file (as listed in the file's comment block) found under the
    same name in $(gi_src_root)/build, so updates for this comes
    from there.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765245

 build/Makefile.msvc-introspection |  125 +++++++++++++++++++++++++++++++++++++
 1 files changed, 125 insertions(+), 0 deletions(-)
---
diff --git a/build/Makefile.msvc-introspection b/build/Makefile.msvc-introspection
new file mode 100644
index 0000000..6c90964
--- /dev/null
+++ b/build/Makefile.msvc-introspection
@@ -0,0 +1,125 @@
+# Author: Fan, Chun-wei
+# Common autotools file for constructing the g-ir-scanner and
+# g-ir-compiler command lines for Visual Studio builds.
+
+# This is copied from $(srcroot)/build from the gobject-introspection
+# project, which may be included in projects that support both
+# Visual Studio builds and introspection.
+
+# * Input variables:
+#
+#   MSVC_INTROSPECT_GIRS - List of .gir's that should be built
+#                          in the NMake Makefiles
+#
+# * Simple tutorial
+#
+# Add this to Makefile.am where your library/program is built:
+#   (Either YourLib_1_0_gir_MSVC_LIBS or YourLib_1_0_gir_MSVC_PROGRAM
+#    is required unless --headers-only is specified in
+#    YourLib_1_0_gir__MSVC_SCANNERFLAGS)
+#
+#   include $(top_srcdir)/build/Makefile.msvc-introspection
+#   MSVC_INTROSPECT_GIRS = YourLib-1.0.gir
+#   YourLib_1_0_gir_NAMESPACE = YourLib # This is optional
+#   YourLib_1_0_gir_VERSION = 1.0 # This is optional
+#   YourLib_1_0_gir_MSVC_LIBS = yourlib-1.0
+#   YourLib_1_0_gir_MSVC_FILES = $(libyourlib_1_0_SOURCES)
+#   YourLib_1_0_gir_MSVC_PROGRAM = YourProgram
+#   YourLib_1_0_gir_MSVC_PACKAGES = (Dependent .pc files)
+#   YourLib_1_0_gir_MSVC_INCLUDE_GIRS = (Dependent external .gir's)
+#   YourLiv_1_0_gir_MSVC_EXPORT_PACKAGES = (Packages exported by this .gir)
+
+# Private functions
+
+## Transform the MSVC project filename (no filename extensions) to something which can reference through a 
variable
+## without automake/make complaining, eg Gtk-2.0 -> Gtk_2_0
+_gir_name=$(subst /,_,$(subst -,_,$(subst .,_,$(1))))
+
+# Namespace and Version is either fetched from the gir filename
+# or the _NAMESPACE/_VERSION variable combo
+_gir_namespace_msvc = $(or $($(_gir_name)_NAMESPACE),$(firstword $(subst -, ,$(notdir $(1)))))
+_gir_version_msvc = $(or $($(_gir_name)_VERSION),$(lastword $(subst -, ,$(1:.gir=))))
+_typelib_basename_msvc = $(_gir_namespace_msvc)'-'$(_gir_version_msvc)
+
+# _PROGRAM is an optional variable which needs its own --program argument
+_gir_program_msvc = $(if $($(_gir_name)_MSVC_PROGRAM),--program=$($(_gir_name)_MSVC_PROGRAM))
+
+# Deduce the sub-folder from $(srcroot) where the sources reside in
+_gir_source_path_raw_msvc:=$(subst $(abs_top_srcdir),,$(abs_srcdir))
+_gir_source_path_msvc=$(subst /,\\,$(_gir_source_path_raw_msvc))
+_gir_source_subdir_int_msvc=$(subst \\\\,\\,\\$(_gir_source_path_msvc)\\)
+_gir_source_subdir_msvc=$(subst \\.\\,\\,$(_gir_source_subdir_int_msvc))
+
+_gir_files_raw_msvc=$(subst /,\\,$($(_gir_name)_MSVC_FILES))
+_gir_files_msvc=$(subst $(srcdir)\\,,$(subst $(builddir)\\,,$(subst 
$(top_builddir)\\$(_gir_source_path_msvc)\\,\\,$(_gir_files_raw_msvc))))
+
+# Create a list of items for:
+# - Libraries
+# - Packages
+# - GIRs to include
+# - packages to export
+
+_gir_libraries_msvc = $(foreach lib,$($(_gir_name)_MSVC_LIBS),--library=$(lib))
+_gir_packages_msvc = $(foreach pkg,$($(_gir_name)_MSVC_PACKAGES),--pkg=$(pkg))
+_gir_includes_msvc = $(foreach include,$($(_gir_name)_MSVC_INCLUDE_GIRS),--include=$(include))
+_gir_export_packages_msvc = $(foreach pkg,$($(_gir_name)_MSVC_EXPORT_PACKAGES),--pkg-export=$(pkg))
+
+#
+# Create NMake Makefile Sections for Building Introspection files
+# from autotools files
+# $(1) - File Name of the .gir that is to be generated
+#
+
+define gir-nmake-builder
+
+# Basic sanity check, to make sure required variables are set
+$(if $($(_gir_name)_MSVC_FILES),,$(error Need to define $(_gir_name)_MSVC_FILES))
+$(if $(or $(findstring --header-only,$($(_gir_name)_MSVC_SCANNERFLAGS)),
+          $($(_gir_name)_MSVC_LIBS),
+          $($(_gir_name)_MSVC_PROGRAM)),,
+    $(error Need to define $(_gir_name)_MSVC_LIBS or $(_gir_name)_MSVC_PROGRAM))
+
+$(top_builddir)/build/win32/$(_gir_name)_list:
+       for F in $(_gir_files_msvc); do \
+               case $$$$F in \
+               *.c|*.cpp|*.cc|*.cxx|*.h|*.hpp|*.hh|*.hxx) \
+                       echo '..\..'$(_gir_source_subdir_msvc)$$$$F 
$(top_builddir)/build/win32/$(_gir_name)_list \
+                       ;; \
+               esac; \
+       done
+
+$(top_builddir)/build/win32/$(1).msvc.introspect:
+       -$(RM) $(top_builddir)/build/win32/$(1).msvc.introspect
+
+# Assemble the Command to Run g-ir-scanner
+       echo $(1)': '$(_gir_name)'_list 
'$($(_gir_name)_MSVC_GIR_DEPS)>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  @-echo Generating $$$$    '>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  $$$$(PYTHON) $$$$(G_IR_SCANNER) \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --verbose -no-libtool   \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --namespace='$(_gir_namespace_msvc)'    \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --nsversion='$(_gir_version_msvc)'      \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$(_gir_packages_msvc)' \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$(_gir_libraries_msvc)'        \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$(_gir_program_msvc)'  \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --add-include-path=$$$$(G_IR_INCLUDEDIR)        
\'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$(_gir_includes_msvc)' \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$(_gir_export_packages_msvc)'  \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --cflags-begin  \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$($(_gir_name)_MSVC_CFLAGS)'   \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --cflags-end    \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$($(_gir_name)_MSVC_SCANNERFLAGS)'     \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --filelist='$(_gir_name)'_list  \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  -o $$$$@'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '' >>$(top_builddir)/build/win32/$(1).msvc.introspect
+
+# Finally Assemble the Command to Compile the generated .gir
+       echo '$(_typelib_basename_msvc).typelib: 
'$(_typelib_basename_msvc)'.gir'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  @-echo Compiling $$$$    '>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  $$$$(G_IR_COMPILER)     \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  --includedir=. --debug --verbose        \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  '$(1)'  \'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '  -o $$$$@'>>$(top_builddir)/build/win32/$(1).msvc.introspect
+       echo '' >>$(top_builddir)/build/win32/$(1).msvc.introspect
+endef
+
+$(foreach gir,$(MSVC_INTROSPECT_GIRS),$(eval $(call gir-nmake-builder,$(gir))))


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